mirrors/qemu
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity
449041d4db
qemu/target-mips/translate.c
Aurelien Jarno 6fbab86925 target-mips: fix DINSU instruction 
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
2010-06-30 20:00:31 +02:00

12402 lines
350 KiB
C
Raw Blame History

/*
* MIPS32 emulation for qemu: main translation routines.
*
* Copyright (c) 2004-2005 Jocelyn Mayer
* Copyright (c) 2006 Marius Groeger (FPU operations)
* Copyright (c) 2006 Thiemo Seufer (MIPS32R2 support)
* Copyright (c) 2009 CodeSourcery (MIPS16 and microMIPS support)
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, see <http://www.gnu.org/licenses/>.
*/
#include <stdarg.h>
#include <stdlib.h>
#include <stdio.h>
#include <string.h>
#include <inttypes.h>
#include "cpu.h"
#include "exec-all.h"
#include "disas.h"
#include "tcg-op.h"
#include "qemu-common.h"
#include "helper.h"
#define GEN_HELPER 1
#include "helper.h"
//#define MIPS_DEBUG_DISAS
//#define MIPS_DEBUG_SIGN_EXTENSIONS
/* MIPS major opcodes */
#define MASK_OP_MAJOR(op) (op & (0x3F << 26))
enum {
/* indirect opcode tables */
OPC_SPECIAL = (0x00 << 26),
OPC_REGIMM = (0x01 << 26),
OPC_CP0 = (0x10 << 26),
OPC_CP1 = (0x11 << 26),
OPC_CP2 = (0x12 << 26),
OPC_CP3 = (0x13 << 26),
OPC_SPECIAL2 = (0x1C << 26),
OPC_SPECIAL3 = (0x1F << 26),
/* arithmetic with immediate */
OPC_ADDI = (0x08 << 26),
OPC_ADDIU = (0x09 << 26),
OPC_SLTI = (0x0A << 26),
OPC_SLTIU = (0x0B << 26),
/* logic with immediate */
OPC_ANDI = (0x0C << 26),
OPC_ORI = (0x0D << 26),
OPC_XORI = (0x0E << 26),
OPC_LUI = (0x0F << 26),
/* arithmetic with immediate */
OPC_DADDI = (0x18 << 26),
OPC_DADDIU = (0x19 << 26),
/* Jump and branches */
OPC_J = (0x02 << 26),
OPC_JAL = (0x03 << 26),
OPC_JALS = OPC_JAL | 0x5,
OPC_BEQ = (0x04 << 26), /* Unconditional if rs = rt = 0 (B) */
OPC_BEQL = (0x14 << 26),
OPC_BNE = (0x05 << 26),
OPC_BNEL = (0x15 << 26),
OPC_BLEZ = (0x06 << 26),
OPC_BLEZL = (0x16 << 26),
OPC_BGTZ = (0x07 << 26),
OPC_BGTZL = (0x17 << 26),
OPC_JALX = (0x1D << 26), /* MIPS 16 only */
OPC_JALXS = OPC_JALX | 0x5,
/* Load and stores */
OPC_LDL = (0x1A << 26),
OPC_LDR = (0x1B << 26),
OPC_LB = (0x20 << 26),
OPC_LH = (0x21 << 26),
OPC_LWL = (0x22 << 26),
OPC_LW = (0x23 << 26),
OPC_LWPC = OPC_LW | 0x5,
OPC_LBU = (0x24 << 26),
OPC_LHU = (0x25 << 26),
OPC_LWR = (0x26 << 26),
OPC_LWU = (0x27 << 26),
OPC_SB = (0x28 << 26),
OPC_SH = (0x29 << 26),
OPC_SWL = (0x2A << 26),
OPC_SW = (0x2B << 26),
OPC_SDL = (0x2C << 26),
OPC_SDR = (0x2D << 26),
OPC_SWR = (0x2E << 26),
OPC_LL = (0x30 << 26),
OPC_LLD = (0x34 << 26),
OPC_LD = (0x37 << 26),
OPC_LDPC = OPC_LD | 0x5,
OPC_SC = (0x38 << 26),
OPC_SCD = (0x3C << 26),
OPC_SD = (0x3F << 26),
/* Floating point load/store */
OPC_LWC1 = (0x31 << 26),
OPC_LWC2 = (0x32 << 26),
OPC_LDC1 = (0x35 << 26),
OPC_LDC2 = (0x36 << 26),
OPC_SWC1 = (0x39 << 26),
OPC_SWC2 = (0x3A << 26),
OPC_SDC1 = (0x3D << 26),
OPC_SDC2 = (0x3E << 26),
/* MDMX ASE specific */
OPC_MDMX = (0x1E << 26),
/* Cache and prefetch */
OPC_CACHE = (0x2F << 26),
OPC_PREF = (0x33 << 26),
/* Reserved major opcode */
OPC_MAJOR3B_RESERVED = (0x3B << 26),
};
/* MIPS special opcodes */
#define MASK_SPECIAL(op) MASK_OP_MAJOR(op) | (op & 0x3F)
enum {
/* Shifts */
OPC_SLL = 0x00 | OPC_SPECIAL,
/* NOP is SLL r0, r0, 0 */
/* SSNOP is SLL r0, r0, 1 */
/* EHB is SLL r0, r0, 3 */
OPC_SRL = 0x02 | OPC_SPECIAL, /* also ROTR */
OPC_ROTR = OPC_SRL | (1 << 21),
OPC_SRA = 0x03 | OPC_SPECIAL,
OPC_SLLV = 0x04 | OPC_SPECIAL,
OPC_SRLV = 0x06 | OPC_SPECIAL, /* also ROTRV */
OPC_ROTRV = OPC_SRLV | (1 << 6),
OPC_SRAV = 0x07 | OPC_SPECIAL,
OPC_DSLLV = 0x14 | OPC_SPECIAL,
OPC_DSRLV = 0x16 | OPC_SPECIAL, /* also DROTRV */
OPC_DROTRV = OPC_DSRLV | (1 << 6),
OPC_DSRAV = 0x17 | OPC_SPECIAL,
OPC_DSLL = 0x38 | OPC_SPECIAL,
OPC_DSRL = 0x3A | OPC_SPECIAL, /* also DROTR */
OPC_DROTR = OPC_DSRL | (1 << 21),
OPC_DSRA = 0x3B | OPC_SPECIAL,
OPC_DSLL32 = 0x3C | OPC_SPECIAL,
OPC_DSRL32 = 0x3E | OPC_SPECIAL, /* also DROTR32 */
OPC_DROTR32 = OPC_DSRL32 | (1 << 21),
OPC_DSRA32 = 0x3F | OPC_SPECIAL,
/* Multiplication / division */
OPC_MULT = 0x18 | OPC_SPECIAL,
OPC_MULTU = 0x19 | OPC_SPECIAL,
OPC_DIV = 0x1A | OPC_SPECIAL,
OPC_DIVU = 0x1B | OPC_SPECIAL,
OPC_DMULT = 0x1C | OPC_SPECIAL,
OPC_DMULTU = 0x1D | OPC_SPECIAL,
OPC_DDIV = 0x1E | OPC_SPECIAL,
OPC_DDIVU = 0x1F | OPC_SPECIAL,
/* 2 registers arithmetic / logic */
OPC_ADD = 0x20 | OPC_SPECIAL,
OPC_ADDU = 0x21 | OPC_SPECIAL,
OPC_SUB = 0x22 | OPC_SPECIAL,
OPC_SUBU = 0x23 | OPC_SPECIAL,
OPC_AND = 0x24 | OPC_SPECIAL,
OPC_OR = 0x25 | OPC_SPECIAL,
OPC_XOR = 0x26 | OPC_SPECIAL,
OPC_NOR = 0x27 | OPC_SPECIAL,
OPC_SLT = 0x2A | OPC_SPECIAL,
OPC_SLTU = 0x2B | OPC_SPECIAL,
OPC_DADD = 0x2C | OPC_SPECIAL,
OPC_DADDU = 0x2D | OPC_SPECIAL,
OPC_DSUB = 0x2E | OPC_SPECIAL,
OPC_DSUBU = 0x2F | OPC_SPECIAL,
/* Jumps */
OPC_JR = 0x08 | OPC_SPECIAL, /* Also JR.HB */
OPC_JALR = 0x09 | OPC_SPECIAL, /* Also JALR.HB */
OPC_JALRC = OPC_JALR | (0x5 << 6),
OPC_JALRS = 0x10 | OPC_SPECIAL | (0x5 << 6),
/* Traps */
OPC_TGE = 0x30 | OPC_SPECIAL,
OPC_TGEU = 0x31 | OPC_SPECIAL,
OPC_TLT = 0x32 | OPC_SPECIAL,
OPC_TLTU = 0x33 | OPC_SPECIAL,
OPC_TEQ = 0x34 | OPC_SPECIAL,
OPC_TNE = 0x36 | OPC_SPECIAL,
/* HI / LO registers load & stores */
OPC_MFHI = 0x10 | OPC_SPECIAL,
OPC_MTHI = 0x11 | OPC_SPECIAL,
OPC_MFLO = 0x12 | OPC_SPECIAL,
OPC_MTLO = 0x13 | OPC_SPECIAL,
/* Conditional moves */
OPC_MOVZ = 0x0A | OPC_SPECIAL,
OPC_MOVN = 0x0B | OPC_SPECIAL,
OPC_MOVCI = 0x01 | OPC_SPECIAL,
/* Special */
OPC_PMON = 0x05 | OPC_SPECIAL, /* unofficial */
OPC_SYSCALL = 0x0C | OPC_SPECIAL,
OPC_BREAK = 0x0D | OPC_SPECIAL,
OPC_SPIM = 0x0E | OPC_SPECIAL, /* unofficial */
OPC_SYNC = 0x0F | OPC_SPECIAL,
OPC_SPECIAL15_RESERVED = 0x15 | OPC_SPECIAL,
OPC_SPECIAL28_RESERVED = 0x28 | OPC_SPECIAL,
OPC_SPECIAL29_RESERVED = 0x29 | OPC_SPECIAL,
OPC_SPECIAL35_RESERVED = 0x35 | OPC_SPECIAL,
OPC_SPECIAL37_RESERVED = 0x37 | OPC_SPECIAL,
OPC_SPECIAL39_RESERVED = 0x39 | OPC_SPECIAL,
OPC_SPECIAL3D_RESERVED = 0x3D | OPC_SPECIAL,
};
/* Multiplication variants of the vr54xx. */
#define MASK_MUL_VR54XX(op) MASK_SPECIAL(op) | (op & (0x1F << 6))
enum {
OPC_VR54XX_MULS = (0x03 << 6) | OPC_MULT,
OPC_VR54XX_MULSU = (0x03 << 6) | OPC_MULTU,
OPC_VR54XX_MACC = (0x05 << 6) | OPC_MULT,
OPC_VR54XX_MACCU = (0x05 << 6) | OPC_MULTU,
OPC_VR54XX_MSAC = (0x07 << 6) | OPC_MULT,
OPC_VR54XX_MSACU = (0x07 << 6) | OPC_MULTU,
OPC_VR54XX_MULHI = (0x09 << 6) | OPC_MULT,
OPC_VR54XX_MULHIU = (0x09 << 6) | OPC_MULTU,
OPC_VR54XX_MULSHI = (0x0B << 6) | OPC_MULT,
OPC_VR54XX_MULSHIU = (0x0B << 6) | OPC_MULTU,
OPC_VR54XX_MACCHI = (0x0D << 6) | OPC_MULT,
OPC_VR54XX_MACCHIU = (0x0D << 6) | OPC_MULTU,
OPC_VR54XX_MSACHI = (0x0F << 6) | OPC_MULT,
OPC_VR54XX_MSACHIU = (0x0F << 6) | OPC_MULTU,
};
/* REGIMM (rt field) opcodes */
#define MASK_REGIMM(op) MASK_OP_MAJOR(op) | (op & (0x1F << 16))
enum {
OPC_BLTZ = (0x00 << 16) | OPC_REGIMM,
OPC_BLTZL = (0x02 << 16) | OPC_REGIMM,
OPC_BGEZ = (0x01 << 16) | OPC_REGIMM,
OPC_BGEZL = (0x03 << 16) | OPC_REGIMM,
OPC_BLTZAL = (0x10 << 16) | OPC_REGIMM,
OPC_BLTZALS = OPC_BLTZAL | 0x5, /* microMIPS */
OPC_BLTZALL = (0x12 << 16) | OPC_REGIMM,
OPC_BGEZAL = (0x11 << 16) | OPC_REGIMM,
OPC_BGEZALS = OPC_BGEZAL | 0x5, /* microMIPS */
OPC_BGEZALL = (0x13 << 16) | OPC_REGIMM,
OPC_TGEI = (0x08 << 16) | OPC_REGIMM,
OPC_TGEIU = (0x09 << 16) | OPC_REGIMM,
OPC_TLTI = (0x0A << 16) | OPC_REGIMM,
OPC_TLTIU = (0x0B << 16) | OPC_REGIMM,
OPC_TEQI = (0x0C << 16) | OPC_REGIMM,
OPC_TNEI = (0x0E << 16) | OPC_REGIMM,
OPC_SYNCI = (0x1F << 16) | OPC_REGIMM,
};
/* Special2 opcodes */
#define MASK_SPECIAL2(op) MASK_OP_MAJOR(op) | (op & 0x3F)
enum {
/* Multiply & xxx operations */
OPC_MADD = 0x00 | OPC_SPECIAL2,
OPC_MADDU = 0x01 | OPC_SPECIAL2,
OPC_MUL = 0x02 | OPC_SPECIAL2,
OPC_MSUB = 0x04 | OPC_SPECIAL2,
OPC_MSUBU = 0x05 | OPC_SPECIAL2,
/* Misc */
OPC_CLZ = 0x20 | OPC_SPECIAL2,
OPC_CLO = 0x21 | OPC_SPECIAL2,
OPC_DCLZ = 0x24 | OPC_SPECIAL2,
OPC_DCLO = 0x25 | OPC_SPECIAL2,
/* Special */
OPC_SDBBP = 0x3F | OPC_SPECIAL2,
};
/* Special3 opcodes */
#define MASK_SPECIAL3(op) MASK_OP_MAJOR(op) | (op & 0x3F)
enum {
OPC_EXT = 0x00 | OPC_SPECIAL3,
OPC_DEXTM = 0x01 | OPC_SPECIAL3,
OPC_DEXTU = 0x02 | OPC_SPECIAL3,
OPC_DEXT = 0x03 | OPC_SPECIAL3,
OPC_INS = 0x04 | OPC_SPECIAL3,
OPC_DINSM = 0x05 | OPC_SPECIAL3,
OPC_DINSU = 0x06 | OPC_SPECIAL3,
OPC_DINS = 0x07 | OPC_SPECIAL3,
OPC_FORK = 0x08 | OPC_SPECIAL3,
OPC_YIELD = 0x09 | OPC_SPECIAL3,
OPC_BSHFL = 0x20 | OPC_SPECIAL3,
OPC_DBSHFL = 0x24 | OPC_SPECIAL3,
OPC_RDHWR = 0x3B | OPC_SPECIAL3,
};
/* BSHFL opcodes */
#define MASK_BSHFL(op) MASK_SPECIAL3(op) | (op & (0x1F << 6))
enum {
OPC_WSBH = (0x02 << 6) | OPC_BSHFL,
OPC_SEB = (0x10 << 6) | OPC_BSHFL,
OPC_SEH = (0x18 << 6) | OPC_BSHFL,
};
/* DBSHFL opcodes */
#define MASK_DBSHFL(op) MASK_SPECIAL3(op) | (op & (0x1F << 6))
enum {
OPC_DSBH = (0x02 << 6) | OPC_DBSHFL,
OPC_DSHD = (0x05 << 6) | OPC_DBSHFL,
};
/* Coprocessor 0 (rs field) */
#define MASK_CP0(op) MASK_OP_MAJOR(op) | (op & (0x1F << 21))
enum {
OPC_MFC0 = (0x00 << 21) | OPC_CP0,
OPC_DMFC0 = (0x01 << 21) | OPC_CP0,
OPC_MTC0 = (0x04 << 21) | OPC_CP0,
OPC_DMTC0 = (0x05 << 21) | OPC_CP0,
OPC_MFTR = (0x08 << 21) | OPC_CP0,
OPC_RDPGPR = (0x0A << 21) | OPC_CP0,
OPC_MFMC0 = (0x0B << 21) | OPC_CP0,
OPC_MTTR = (0x0C << 21) | OPC_CP0,
OPC_WRPGPR = (0x0E << 21) | OPC_CP0,
OPC_C0 = (0x10 << 21) | OPC_CP0,
OPC_C0_FIRST = (0x10 << 21) | OPC_CP0,
OPC_C0_LAST = (0x1F << 21) | OPC_CP0,
};
/* MFMC0 opcodes */
#define MASK_MFMC0(op) MASK_CP0(op) | (op & 0xFFFF)
enum {
OPC_DMT = 0x01 | (0 << 5) | (0x0F << 6) | (0x01 << 11) | OPC_MFMC0,
OPC_EMT = 0x01 | (1 << 5) | (0x0F << 6) | (0x01 << 11) | OPC_MFMC0,
OPC_DVPE = 0x01 | (0 << 5) | OPC_MFMC0,
OPC_EVPE = 0x01 | (1 << 5) | OPC_MFMC0,
OPC_DI = (0 << 5) | (0x0C << 11) | OPC_MFMC0,
OPC_EI = (1 << 5) | (0x0C << 11) | OPC_MFMC0,
};
/* Coprocessor 0 (with rs == C0) */
#define MASK_C0(op) MASK_CP0(op) | (op & 0x3F)
enum {
OPC_TLBR = 0x01 | OPC_C0,
OPC_TLBWI = 0x02 | OPC_C0,
OPC_TLBWR = 0x06 | OPC_C0,
OPC_TLBP = 0x08 | OPC_C0,
OPC_RFE = 0x10 | OPC_C0,
OPC_ERET = 0x18 | OPC_C0,
OPC_DERET = 0x1F | OPC_C0,
OPC_WAIT = 0x20 | OPC_C0,
};
/* Coprocessor 1 (rs field) */
#define MASK_CP1(op) MASK_OP_MAJOR(op) | (op & (0x1F << 21))
/* Values for the fmt field in FP instructions */
enum {
/* 0 - 15 are reserved */
FMT_S = 16, /* single fp */
FMT_D = 17, /* double fp */
FMT_E = 18, /* extended fp */
FMT_Q = 19, /* quad fp */
FMT_W = 20, /* 32-bit fixed */
FMT_L = 21, /* 64-bit fixed */
FMT_PS = 22, /* paired single fp */
/* 23 - 31 are reserved */
};
enum {
OPC_MFC1 = (0x00 << 21) | OPC_CP1,
OPC_DMFC1 = (0x01 << 21) | OPC_CP1,
OPC_CFC1 = (0x02 << 21) | OPC_CP1,
OPC_MFHC1 = (0x03 << 21) | OPC_CP1,
OPC_MTC1 = (0x04 << 21) | OPC_CP1,
OPC_DMTC1 = (0x05 << 21) | OPC_CP1,
OPC_CTC1 = (0x06 << 21) | OPC_CP1,
OPC_MTHC1 = (0x07 << 21) | OPC_CP1,
OPC_BC1 = (0x08 << 21) | OPC_CP1, /* bc */
OPC_BC1ANY2 = (0x09 << 21) | OPC_CP1,
OPC_BC1ANY4 = (0x0A << 21) | OPC_CP1,
OPC_S_FMT = (FMT_S << 21) | OPC_CP1,
OPC_D_FMT = (FMT_D << 21) | OPC_CP1,
OPC_E_FMT = (FMT_E << 21) | OPC_CP1,
OPC_Q_FMT = (FMT_Q << 21) | OPC_CP1,
OPC_W_FMT = (FMT_W << 21) | OPC_CP1,
OPC_L_FMT = (FMT_L << 21) | OPC_CP1,
OPC_PS_FMT = (FMT_PS << 21) | OPC_CP1,
};
#define MASK_CP1_FUNC(op) MASK_CP1(op) | (op & 0x3F)
#define MASK_BC1(op) MASK_CP1(op) | (op & (0x3 << 16))
enum {
OPC_BC1F = (0x00 << 16) | OPC_BC1,
OPC_BC1T = (0x01 << 16) | OPC_BC1,
OPC_BC1FL = (0x02 << 16) | OPC_BC1,
OPC_BC1TL = (0x03 << 16) | OPC_BC1,
};
enum {
OPC_BC1FANY2 = (0x00 << 16) | OPC_BC1ANY2,
OPC_BC1TANY2 = (0x01 << 16) | OPC_BC1ANY2,
};
enum {
OPC_BC1FANY4 = (0x00 << 16) | OPC_BC1ANY4,
OPC_BC1TANY4 = (0x01 << 16) | OPC_BC1ANY4,
};
#define MASK_CP2(op) MASK_OP_MAJOR(op) | (op & (0x1F << 21))
enum {
OPC_MFC2 = (0x00 << 21) | OPC_CP2,
OPC_DMFC2 = (0x01 << 21) | OPC_CP2,
OPC_CFC2 = (0x02 << 21) | OPC_CP2,
OPC_MFHC2 = (0x03 << 21) | OPC_CP2,
OPC_MTC2 = (0x04 << 21) | OPC_CP2,
OPC_DMTC2 = (0x05 << 21) | OPC_CP2,
OPC_CTC2 = (0x06 << 21) | OPC_CP2,
OPC_MTHC2 = (0x07 << 21) | OPC_CP2,
OPC_BC2 = (0x08 << 21) | OPC_CP2,
};
#define MASK_CP3(op) MASK_OP_MAJOR(op) | (op & 0x3F)
enum {
OPC_LWXC1 = 0x00 | OPC_CP3,
OPC_LDXC1 = 0x01 | OPC_CP3,
OPC_LUXC1 = 0x05 | OPC_CP3,
OPC_SWXC1 = 0x08 | OPC_CP3,
OPC_SDXC1 = 0x09 | OPC_CP3,
OPC_SUXC1 = 0x0D | OPC_CP3,
OPC_PREFX = 0x0F | OPC_CP3,
OPC_ALNV_PS = 0x1E | OPC_CP3,
OPC_MADD_S = 0x20 | OPC_CP3,
OPC_MADD_D = 0x21 | OPC_CP3,
OPC_MADD_PS = 0x26 | OPC_CP3,
OPC_MSUB_S = 0x28 | OPC_CP3,
OPC_MSUB_D = 0x29 | OPC_CP3,
OPC_MSUB_PS = 0x2E | OPC_CP3,
OPC_NMADD_S = 0x30 | OPC_CP3,
OPC_NMADD_D = 0x31 | OPC_CP3,
OPC_NMADD_PS= 0x36 | OPC_CP3,
OPC_NMSUB_S = 0x38 | OPC_CP3,
OPC_NMSUB_D = 0x39 | OPC_CP3,
OPC_NMSUB_PS= 0x3E | OPC_CP3,
};
/* global register indices */
static TCGv_ptr cpu_env;
static TCGv cpu_gpr[32], cpu_PC;
static TCGv cpu_HI[MIPS_DSP_ACC], cpu_LO[MIPS_DSP_ACC], cpu_ACX[MIPS_DSP_ACC];
static TCGv cpu_dspctrl, btarget, bcond;
static TCGv_i32 hflags;
static TCGv_i32 fpu_fcr0, fpu_fcr31;
static uint32_t gen_opc_hflags[OPC_BUF_SIZE];
#include "gen-icount.h"
#define gen_helper_0i(name, arg) do { \
TCGv_i32 helper_tmp = tcg_const_i32(arg); \
gen_helper_##name(helper_tmp); \
tcg_temp_free_i32(helper_tmp); \
} while(0)
#define gen_helper_1i(name, arg1, arg2) do { \
TCGv_i32 helper_tmp = tcg_const_i32(arg2); \
gen_helper_##name(arg1, helper_tmp); \
tcg_temp_free_i32(helper_tmp); \
} while(0)
#define gen_helper_2i(name, arg1, arg2, arg3) do { \
TCGv_i32 helper_tmp = tcg_const_i32(arg3); \
gen_helper_##name(arg1, arg2, helper_tmp); \
tcg_temp_free_i32(helper_tmp); \
} while(0)
#define gen_helper_3i(name, arg1, arg2, arg3, arg4) do { \
TCGv_i32 helper_tmp = tcg_const_i32(arg4); \
gen_helper_##name(arg1, arg2, arg3, helper_tmp); \
tcg_temp_free_i32(helper_tmp); \
} while(0)
typedef struct DisasContext {
struct TranslationBlock *tb;
target_ulong pc, saved_pc;
uint32_t opcode;
int singlestep_enabled;
/* Routine used to access memory */
int mem_idx;
uint32_t hflags, saved_hflags;
int bstate;
target_ulong btarget;
} DisasContext;
enum {
BS_NONE = 0, /* We go out of the TB without reaching a branch or an
* exception condition */
BS_STOP = 1, /* We want to stop translation for any reason */
BS_BRANCH = 2, /* We reached a branch condition */
BS_EXCP = 3, /* We reached an exception condition */
};
static const char *regnames[] =
{ "r0", "at", "v0", "v1", "a0", "a1", "a2", "a3",
"t0", "t1", "t2", "t3", "t4", "t5", "t6", "t7",
"s0", "s1", "s2", "s3", "s4", "s5", "s6", "s7",
"t8", "t9", "k0", "k1", "gp", "sp", "s8", "ra", };
static const char *regnames_HI[] =
{ "HI0", "HI1", "HI2", "HI3", };
static const char *regnames_LO[] =
{ "LO0", "LO1", "LO2", "LO3", };
static const char *regnames_ACX[] =
{ "ACX0", "ACX1", "ACX2", "ACX3", };
static const char *fregnames[] =
{ "f0", "f1", "f2", "f3", "f4", "f5", "f6", "f7",
"f8", "f9", "f10", "f11", "f12", "f13", "f14", "f15",
"f16", "f17", "f18", "f19", "f20", "f21", "f22", "f23",
"f24", "f25", "f26", "f27", "f28", "f29", "f30", "f31", };
#ifdef MIPS_DEBUG_DISAS
#define MIPS_DEBUG(fmt, ...) \
qemu_log_mask(CPU_LOG_TB_IN_ASM, \
TARGET_FMT_lx ": %08x " fmt "\n", \
ctx->pc, ctx->opcode , ## __VA_ARGS__)
#define LOG_DISAS(...) qemu_log_mask(CPU_LOG_TB_IN_ASM, ## __VA_ARGS__)
#else
#define MIPS_DEBUG(fmt, ...) do { } while(0)
#define LOG_DISAS(...) do { } while (0)
#endif
#define MIPS_INVAL(op) \
do { \
MIPS_DEBUG("Invalid %s %03x %03x %03x", op, ctx->opcode >> 26, \
ctx->opcode & 0x3F, ((ctx->opcode >> 16) & 0x1F)); \
} while (0)
/* General purpose registers moves. */
static inline void gen_load_gpr (TCGv t, int reg)
{
if (reg == 0)
tcg_gen_movi_tl(t, 0);
else
tcg_gen_mov_tl(t, cpu_gpr[reg]);
}
static inline void gen_store_gpr (TCGv t, int reg)
{
if (reg != 0)
tcg_gen_mov_tl(cpu_gpr[reg], t);
}
/* Moves to/from ACX register. */
static inline void gen_load_ACX (TCGv t, int reg)
{
tcg_gen_mov_tl(t, cpu_ACX[reg]);
}
static inline void gen_store_ACX (TCGv t, int reg)
{
tcg_gen_mov_tl(cpu_ACX[reg], t);
}
/* Moves to/from shadow registers. */
static inline void gen_load_srsgpr (int from, int to)
{
TCGv t0 = tcg_temp_new();
if (from == 0)
tcg_gen_movi_tl(t0, 0);
else {
TCGv_i32 t2 = tcg_temp_new_i32();
TCGv_ptr addr = tcg_temp_new_ptr();
tcg_gen_ld_i32(t2, cpu_env, offsetof(CPUState, CP0_SRSCtl));
tcg_gen_shri_i32(t2, t2, CP0SRSCtl_PSS);
tcg_gen_andi_i32(t2, t2, 0xf);
tcg_gen_muli_i32(t2, t2, sizeof(target_ulong) * 32);
tcg_gen_ext_i32_ptr(addr, t2);
tcg_gen_add_ptr(addr, cpu_env, addr);
tcg_gen_ld_tl(t0, addr, sizeof(target_ulong) * from);
tcg_temp_free_ptr(addr);
tcg_temp_free_i32(t2);
}
gen_store_gpr(t0, to);
tcg_temp_free(t0);
}
static inline void gen_store_srsgpr (int from, int to)
{
if (to != 0) {
TCGv t0 = tcg_temp_new();
TCGv_i32 t2 = tcg_temp_new_i32();
TCGv_ptr addr = tcg_temp_new_ptr();
gen_load_gpr(t0, from);
tcg_gen_ld_i32(t2, cpu_env, offsetof(CPUState, CP0_SRSCtl));
tcg_gen_shri_i32(t2, t2, CP0SRSCtl_PSS);
tcg_gen_andi_i32(t2, t2, 0xf);
tcg_gen_muli_i32(t2, t2, sizeof(target_ulong) * 32);
tcg_gen_ext_i32_ptr(addr, t2);
tcg_gen_add_ptr(addr, cpu_env, addr);
tcg_gen_st_tl(t0, addr, sizeof(target_ulong) * to);
tcg_temp_free_ptr(addr);
tcg_temp_free_i32(t2);
tcg_temp_free(t0);
}
}
/* Floating point register moves. */
static inline void gen_load_fpr32 (TCGv_i32 t, int reg)
{
tcg_gen_ld_i32(t, cpu_env, offsetof(CPUState, active_fpu.fpr[reg].w[FP_ENDIAN_IDX]));
}
static inline void gen_store_fpr32 (TCGv_i32 t, int reg)
{
tcg_gen_st_i32(t, cpu_env, offsetof(CPUState, active_fpu.fpr[reg].w[FP_ENDIAN_IDX]));
}
static inline void gen_load_fpr32h (TCGv_i32 t, int reg)
{
tcg_gen_ld_i32(t, cpu_env, offsetof(CPUState, active_fpu.fpr[reg].w[!FP_ENDIAN_IDX]));
}
static inline void gen_store_fpr32h (TCGv_i32 t, int reg)
{
tcg_gen_st_i32(t, cpu_env, offsetof(CPUState, active_fpu.fpr[reg].w[!FP_ENDIAN_IDX]));
}
static inline void gen_load_fpr64 (DisasContext *ctx, TCGv_i64 t, int reg)
{
if (ctx->hflags & MIPS_HFLAG_F64) {
tcg_gen_ld_i64(t, cpu_env, offsetof(CPUState, active_fpu.fpr[reg].d));
} else {
TCGv_i32 t0 = tcg_temp_new_i32();
TCGv_i32 t1 = tcg_temp_new_i32();
gen_load_fpr32(t0, reg & ~1);
gen_load_fpr32(t1, reg | 1);
tcg_gen_concat_i32_i64(t, t0, t1);
tcg_temp_free_i32(t0);
tcg_temp_free_i32(t1);
}
}
static inline void gen_store_fpr64 (DisasContext *ctx, TCGv_i64 t, int reg)
{
if (ctx->hflags & MIPS_HFLAG_F64) {
tcg_gen_st_i64(t, cpu_env, offsetof(CPUState, active_fpu.fpr[reg].d));
} else {
TCGv_i64 t0 = tcg_temp_new_i64();
TCGv_i32 t1 = tcg_temp_new_i32();
tcg_gen_trunc_i64_i32(t1, t);
gen_store_fpr32(t1, reg & ~1);
tcg_gen_shri_i64(t0, t, 32);
tcg_gen_trunc_i64_i32(t1, t0);
gen_store_fpr32(t1, reg | 1);
tcg_temp_free_i32(t1);
tcg_temp_free_i64(t0);
}
}
static inline int get_fp_bit (int cc)
{
if (cc)
return 24 + cc;
else
return 23;
}
/* Tests */
static inline void gen_save_pc(target_ulong pc)
{
tcg_gen_movi_tl(cpu_PC, pc);
}
static inline void save_cpu_state (DisasContext *ctx, int do_save_pc)
{
LOG_DISAS("hflags %08x saved %08x\n", ctx->hflags, ctx->saved_hflags);
if (do_save_pc && ctx->pc != ctx->saved_pc) {
gen_save_pc(ctx->pc);
ctx->saved_pc = ctx->pc;
}
if (ctx->hflags != ctx->saved_hflags) {
tcg_gen_movi_i32(hflags, ctx->hflags);
ctx->saved_hflags = ctx->hflags;
switch (ctx->hflags & MIPS_HFLAG_BMASK_BASE) {
case MIPS_HFLAG_BR:
break;
case MIPS_HFLAG_BC:
case MIPS_HFLAG_BL:
case MIPS_HFLAG_B:
tcg_gen_movi_tl(btarget, ctx->btarget);
break;
}
}
}
static inline void restore_cpu_state (CPUState *env, DisasContext *ctx)
{
ctx->saved_hflags = ctx->hflags;
switch (ctx->hflags & MIPS_HFLAG_BMASK_BASE) {
case MIPS_HFLAG_BR:
break;
case MIPS_HFLAG_BC:
case MIPS_HFLAG_BL:
case MIPS_HFLAG_B:
ctx->btarget = env->btarget;
break;
}
}
static inline void
generate_exception_err (DisasContext *ctx, int excp, int err)
{
TCGv_i32 texcp = tcg_const_i32(excp);
TCGv_i32 terr = tcg_const_i32(err);
save_cpu_state(ctx, 1);
gen_helper_raise_exception_err(texcp, terr);
tcg_temp_free_i32(terr);
tcg_temp_free_i32(texcp);
}
static inline void
generate_exception (DisasContext *ctx, int excp)
{
save_cpu_state(ctx, 1);
gen_helper_0i(raise_exception, excp);
}
/* Addresses computation */
static inline void gen_op_addr_add (DisasContext *ctx, TCGv ret, TCGv arg0, TCGv arg1)
{
tcg_gen_add_tl(ret, arg0, arg1);
#if defined(TARGET_MIPS64)
/* For compatibility with 32-bit code, data reference in user mode
with Status_UX = 0 should be casted to 32-bit and sign extended.
See the MIPS64 PRA manual, section 4.10. */
if (((ctx->hflags & MIPS_HFLAG_KSU) == MIPS_HFLAG_UM) &&
!(ctx->hflags & MIPS_HFLAG_UX)) {
tcg_gen_ext32s_i64(ret, ret);
}
#endif
}
static inline void check_cp0_enabled(DisasContext *ctx)
{
if (unlikely(!(ctx->hflags & MIPS_HFLAG_CP0)))
generate_exception_err(ctx, EXCP_CpU, 0);
}
static inline void check_cp1_enabled(DisasContext *ctx)
{
if (unlikely(!(ctx->hflags & MIPS_HFLAG_FPU)))
generate_exception_err(ctx, EXCP_CpU, 1);
}
/* Verify that the processor is running with COP1X instructions enabled.
This is associated with the nabla symbol in the MIPS32 and MIPS64
opcode tables. */
static inline void check_cop1x(DisasContext *ctx)
{
if (unlikely(!(ctx->hflags & MIPS_HFLAG_COP1X)))
generate_exception(ctx, EXCP_RI);
}
/* Verify that the processor is running with 64-bit floating-point
operations enabled. */
static inline void check_cp1_64bitmode(DisasContext *ctx)
{
if (unlikely(~ctx->hflags & (MIPS_HFLAG_F64 | MIPS_HFLAG_COP1X)))
generate_exception(ctx, EXCP_RI);
}
/*
* Verify if floating point register is valid; an operation is not defined
* if bit 0 of any register specification is set and the FR bit in the
* Status register equals zero, since the register numbers specify an
* even-odd pair of adjacent coprocessor general registers. When the FR bit
* in the Status register equals one, both even and odd register numbers
* are valid. This limitation exists only for 64 bit wide (d,l,ps) registers.
*
* Multiple 64 bit wide registers can be checked by calling
* gen_op_cp1_registers(freg1 | freg2 | ... | fregN);
*/
static inline void check_cp1_registers(DisasContext *ctx, int regs)
{
if (unlikely(!(ctx->hflags & MIPS_HFLAG_F64) && (regs & 1)))
generate_exception(ctx, EXCP_RI);
}
/* This code generates a "reserved instruction" exception if the
CPU does not support the instruction set corresponding to flags. */
static inline void check_insn(CPUState *env, DisasContext *ctx, int flags)
{
if (unlikely(!(env->insn_flags & flags)))
generate_exception(ctx, EXCP_RI);
}
/* This code generates a "reserved instruction" exception if 64-bit
instructions are not enabled. */
static inline void check_mips_64(DisasContext *ctx)
{
if (unlikely(!(ctx->hflags & MIPS_HFLAG_64)))
generate_exception(ctx, EXCP_RI);
}
/* Define small wrappers for gen_load_fpr* so that we have a uniform
calling interface for 32 and 64-bit FPRs. No sense in changing
all callers for gen_load_fpr32 when we need the CTX parameter for
this one use. */
#define gen_ldcmp_fpr32(ctx, x, y) gen_load_fpr32(x, y)
#define gen_ldcmp_fpr64(ctx, x, y) gen_load_fpr64(ctx, x, y)
#define FOP_CONDS(type, abs, fmt, ifmt, bits) \
static inline void gen_cmp ## type ## _ ## fmt(DisasContext *ctx, int n, \
int ft, int fs, int cc) \
{ \
TCGv_i##bits fp0 = tcg_temp_new_i##bits (); \
TCGv_i##bits fp1 = tcg_temp_new_i##bits (); \
switch (ifmt) { \
case FMT_PS: \
check_cp1_64bitmode(ctx); \
break; \
case FMT_D: \
if (abs) { \
check_cop1x(ctx); \
} \
check_cp1_registers(ctx, fs | ft); \
break; \
case FMT_S: \
if (abs) { \
check_cop1x(ctx); \
} \
break; \
} \
gen_ldcmp_fpr##bits (ctx, fp0, fs); \
gen_ldcmp_fpr##bits (ctx, fp1, ft); \
switch (n) { \
case 0: gen_helper_2i(cmp ## type ## _ ## fmt ## _f, fp0, fp1, cc); break;\
case 1: gen_helper_2i(cmp ## type ## _ ## fmt ## _un, fp0, fp1, cc); break;\
case 2: gen_helper_2i(cmp ## type ## _ ## fmt ## _eq, fp0, fp1, cc); break;\
case 3: gen_helper_2i(cmp ## type ## _ ## fmt ## _ueq, fp0, fp1, cc); break;\
case 4: gen_helper_2i(cmp ## type ## _ ## fmt ## _olt, fp0, fp1, cc); break;\
case 5: gen_helper_2i(cmp ## type ## _ ## fmt ## _ult, fp0, fp1, cc); break;\
case 6: gen_helper_2i(cmp ## type ## _ ## fmt ## _ole, fp0, fp1, cc); break;\
case 7: gen_helper_2i(cmp ## type ## _ ## fmt ## _ule, fp0, fp1, cc); break;\
case 8: gen_helper_2i(cmp ## type ## _ ## fmt ## _sf, fp0, fp1, cc); break;\
case 9: gen_helper_2i(cmp ## type ## _ ## fmt ## _ngle, fp0, fp1, cc); break;\
case 10: gen_helper_2i(cmp ## type ## _ ## fmt ## _seq, fp0, fp1, cc); break;\
case 11: gen_helper_2i(cmp ## type ## _ ## fmt ## _ngl, fp0, fp1, cc); break;\
case 12: gen_helper_2i(cmp ## type ## _ ## fmt ## _lt, fp0, fp1, cc); break;\
case 13: gen_helper_2i(cmp ## type ## _ ## fmt ## _nge, fp0, fp1, cc); break;\
case 14: gen_helper_2i(cmp ## type ## _ ## fmt ## _le, fp0, fp1, cc); break;\
case 15: gen_helper_2i(cmp ## type ## _ ## fmt ## _ngt, fp0, fp1, cc); break;\
default: abort(); \
} \
tcg_temp_free_i##bits (fp0); \
tcg_temp_free_i##bits (fp1); \
}
FOP_CONDS(, 0, d, FMT_D, 64)
FOP_CONDS(abs, 1, d, FMT_D, 64)
FOP_CONDS(, 0, s, FMT_S, 32)
FOP_CONDS(abs, 1, s, FMT_S, 32)
FOP_CONDS(, 0, ps, FMT_PS, 64)
FOP_CONDS(abs, 1, ps, FMT_PS, 64)
#undef FOP_CONDS
#undef gen_ldcmp_fpr32
#undef gen_ldcmp_fpr64
/* load/store instructions. */
#define OP_LD(insn,fname) \
static inline void op_ldst_##insn(TCGv ret, TCGv arg1, DisasContext *ctx) \
{ \
tcg_gen_qemu_##fname(ret, arg1, ctx->mem_idx); \
}
OP_LD(lb,ld8s);
OP_LD(lbu,ld8u);
OP_LD(lh,ld16s);
OP_LD(lhu,ld16u);
OP_LD(lw,ld32s);
#if defined(TARGET_MIPS64)
OP_LD(lwu,ld32u);
OP_LD(ld,ld64);
#endif
#undef OP_LD
#define OP_ST(insn,fname) \
static inline void op_ldst_##insn(TCGv arg1, TCGv arg2, DisasContext *ctx) \
{ \
tcg_gen_qemu_##fname(arg1, arg2, ctx->mem_idx); \
}
OP_ST(sb,st8);
OP_ST(sh,st16);
OP_ST(sw,st32);
#if defined(TARGET_MIPS64)
OP_ST(sd,st64);
#endif
#undef OP_ST
#ifdef CONFIG_USER_ONLY
#define OP_LD_ATOMIC(insn,fname) \
static inline void op_ldst_##insn(TCGv ret, TCGv arg1, DisasContext *ctx) \
{ \
TCGv t0 = tcg_temp_new(); \
tcg_gen_mov_tl(t0, arg1); \
tcg_gen_qemu_##fname(ret, arg1, ctx->mem_idx); \
tcg_gen_st_tl(t0, cpu_env, offsetof(CPUState, lladdr)); \
tcg_gen_st_tl(ret, cpu_env, offsetof(CPUState, llval)); \
tcg_temp_free(t0); \
}
#else
#define OP_LD_ATOMIC(insn,fname) \
static inline void op_ldst_##insn(TCGv ret, TCGv arg1, DisasContext *ctx) \
{ \
gen_helper_2i(insn, ret, arg1, ctx->mem_idx); \
}
#endif
OP_LD_ATOMIC(ll,ld32s);
#if defined(TARGET_MIPS64)
OP_LD_ATOMIC(lld,ld64);
#endif
#undef OP_LD_ATOMIC
#ifdef CONFIG_USER_ONLY
#define OP_ST_ATOMIC(insn,fname,ldname,almask) \
static inline void op_ldst_##insn(TCGv arg1, TCGv arg2, int rt, DisasContext *ctx) \
{ \
TCGv t0 = tcg_temp_new(); \
int l1 = gen_new_label(); \
int l2 = gen_new_label(); \
\
tcg_gen_andi_tl(t0, arg2, almask); \
tcg_gen_brcondi_tl(TCG_COND_EQ, t0, 0, l1); \
tcg_gen_st_tl(arg2, cpu_env, offsetof(CPUState, CP0_BadVAddr)); \
generate_exception(ctx, EXCP_AdES); \
gen_set_label(l1); \
tcg_gen_ld_tl(t0, cpu_env, offsetof(CPUState, lladdr)); \
tcg_gen_brcond_tl(TCG_COND_NE, arg2, t0, l2); \
tcg_gen_movi_tl(t0, rt | ((almask << 3) & 0x20)); \
tcg_gen_st_tl(t0, cpu_env, offsetof(CPUState, llreg)); \
tcg_gen_st_tl(arg1, cpu_env, offsetof(CPUState, llnewval)); \
gen_helper_0i(raise_exception, EXCP_SC); \
gen_set_label(l2); \
tcg_gen_movi_tl(t0, 0); \
gen_store_gpr(t0, rt); \
tcg_temp_free(t0); \
}
#else
#define OP_ST_ATOMIC(insn,fname,ldname,almask) \
static inline void op_ldst_##insn(TCGv arg1, TCGv arg2, int rt, DisasContext *ctx) \
{ \
TCGv t0 = tcg_temp_new(); \
gen_helper_3i(insn, t0, arg1, arg2, ctx->mem_idx); \
gen_store_gpr(t0, rt); \
tcg_temp_free(t0); \
}
#endif
OP_ST_ATOMIC(sc,st32,ld32s,0x3);
#if defined(TARGET_MIPS64)
OP_ST_ATOMIC(scd,st64,ld64,0x7);
#endif
#undef OP_ST_ATOMIC
static void gen_base_offset_addr (DisasContext *ctx, TCGv addr,
int base, int16_t offset)
{
if (base == 0) {
tcg_gen_movi_tl(addr, offset);
} else if (offset == 0) {
gen_load_gpr(addr, base);
} else {
tcg_gen_movi_tl(addr, offset);
gen_op_addr_add(ctx, addr, cpu_gpr[base], addr);
}
}
static target_ulong pc_relative_pc (DisasContext *ctx)
{
target_ulong pc = ctx->pc;
if (ctx->hflags & MIPS_HFLAG_BMASK) {
int branch_bytes = ctx->hflags & MIPS_HFLAG_BDS16 ? 2 : 4;
pc -= branch_bytes;
}
pc &= ~(target_ulong)3;
return pc;
}
/* Load and store */
static void gen_ldst (DisasContext *ctx, uint32_t opc, int rt,
int base, int16_t offset)
{
const char *opn = "ldst";
TCGv t0 = tcg_temp_new();
TCGv t1 = tcg_temp_new();
gen_base_offset_addr(ctx, t0, base, offset);
/* Don't do NOP if destination is zero: we must perform the actual
memory access. */
switch (opc) {
#if defined(TARGET_MIPS64)
case OPC_LWU:
save_cpu_state(ctx, 0);
op_ldst_lwu(t0, t0, ctx);
gen_store_gpr(t0, rt);
opn = "lwu";
break;
case OPC_LD:
save_cpu_state(ctx, 0);
op_ldst_ld(t0, t0, ctx);
gen_store_gpr(t0, rt);
opn = "ld";
break;
case OPC_LLD:
save_cpu_state(ctx, 0);
op_ldst_lld(t0, t0, ctx);
gen_store_gpr(t0, rt);
opn = "lld";
break;
case OPC_SD:
save_cpu_state(ctx, 0);
gen_load_gpr(t1, rt);
op_ldst_sd(t1, t0, ctx);
opn = "sd";
break;
case OPC_LDL:
save_cpu_state(ctx, 1);
gen_load_gpr(t1, rt);
gen_helper_3i(ldl, t1, t1, t0, ctx->mem_idx);
gen_store_gpr(t1, rt);
opn = "ldl";
break;
case OPC_SDL:
save_cpu_state(ctx, 1);
gen_load_gpr(t1, rt);
gen_helper_2i(sdl, t1, t0, ctx->mem_idx);
opn = "sdl";
break;
case OPC_LDR:
save_cpu_state(ctx, 1);
gen_load_gpr(t1, rt);
gen_helper_3i(ldr, t1, t1, t0, ctx->mem_idx);
gen_store_gpr(t1, rt);
opn = "ldr";
break;
case OPC_SDR:
save_cpu_state(ctx, 1);
gen_load_gpr(t1, rt);
gen_helper_2i(sdr, t1, t0, ctx->mem_idx);
opn = "sdr";
break;
case OPC_LDPC:
save_cpu_state(ctx, 1);
tcg_gen_movi_tl(t1, pc_relative_pc(ctx));
gen_op_addr_add(ctx, t0, t0, t1);
op_ldst_ld(t0, t0, ctx);
gen_store_gpr(t0, rt);
break;
#endif
case OPC_LWPC:
save_cpu_state(ctx, 1);
tcg_gen_movi_tl(t1, pc_relative_pc(ctx));
gen_op_addr_add(ctx, t0, t0, t1);
op_ldst_lw(t0, t0, ctx);
gen_store_gpr(t0, rt);
break;
case OPC_LW:
save_cpu_state(ctx, 0);
op_ldst_lw(t0, t0, ctx);
gen_store_gpr(t0, rt);
opn = "lw";
break;
case OPC_SW:
save_cpu_state(ctx, 0);
gen_load_gpr(t1, rt);
op_ldst_sw(t1, t0, ctx);
opn = "sw";
break;
case OPC_LH:
save_cpu_state(ctx, 0);
op_ldst_lh(t0, t0, ctx);
gen_store_gpr(t0, rt);
opn = "lh";
break;
case OPC_SH:
save_cpu_state(ctx, 0);
gen_load_gpr(t1, rt);
op_ldst_sh(t1, t0, ctx);
opn = "sh";
break;
case OPC_LHU:
save_cpu_state(ctx, 0);
op_ldst_lhu(t0, t0, ctx);
gen_store_gpr(t0, rt);
opn = "lhu";
break;
case OPC_LB:
save_cpu_state(ctx, 0);
op_ldst_lb(t0, t0, ctx);
gen_store_gpr(t0, rt);
opn = "lb";
break;
case OPC_SB:
save_cpu_state(ctx, 0);
gen_load_gpr(t1, rt);
op_ldst_sb(t1, t0, ctx);
opn = "sb";
break;
case OPC_LBU:
save_cpu_state(ctx, 0);
op_ldst_lbu(t0, t0, ctx);
gen_store_gpr(t0, rt);
opn = "lbu";
break;
case OPC_LWL:
save_cpu_state(ctx, 1);
gen_load_gpr(t1, rt);
gen_helper_3i(lwl, t1, t1, t0, ctx->mem_idx);
gen_store_gpr(t1, rt);
opn = "lwl";
break;
case OPC_SWL:
save_cpu_state(ctx, 1);
gen_load_gpr(t1, rt);
gen_helper_2i(swl, t1, t0, ctx->mem_idx);
opn = "swr";
break;
case OPC_LWR:
save_cpu_state(ctx, 1);
gen_load_gpr(t1, rt);
gen_helper_3i(lwr, t1, t1, t0, ctx->mem_idx);
gen_store_gpr(t1, rt);
opn = "lwr";
break;
case OPC_SWR:
save_cpu_state(ctx, 1);
gen_load_gpr(t1, rt);
gen_helper_2i(swr, t1, t0, ctx->mem_idx);
opn = "swr";
break;
case OPC_LL:
save_cpu_state(ctx, 1);
op_ldst_ll(t0, t0, ctx);
gen_store_gpr(t0, rt);
opn = "ll";
break;
}
MIPS_DEBUG("%s %s, %d(%s)", opn, regnames[rt], offset, regnames[base]);
tcg_temp_free(t0);
tcg_temp_free(t1);
}
/* Store conditional */
static void gen_st_cond (DisasContext *ctx, uint32_t opc, int rt,
int base, int16_t offset)
{
const char *opn = "st_cond";
TCGv t0, t1;
t0 = tcg_temp_local_new();
gen_base_offset_addr(ctx, t0, base, offset);
/* Don't do NOP if destination is zero: we must perform the actual
memory access. */
t1 = tcg_temp_local_new();
gen_load_gpr(t1, rt);
switch (opc) {
#if defined(TARGET_MIPS64)
case OPC_SCD:
save_cpu_state(ctx, 0);
op_ldst_scd(t1, t0, rt, ctx);
opn = "scd";
break;
#endif
case OPC_SC:
save_cpu_state(ctx, 1);
op_ldst_sc(t1, t0, rt, ctx);
opn = "sc";
break;
}
MIPS_DEBUG("%s %s, %d(%s)", opn, regnames[rt], offset, regnames[base]);
tcg_temp_free(t1);
tcg_temp_free(t0);
}
/* Load and store */
static void gen_flt_ldst (DisasContext *ctx, uint32_t opc, int ft,
int base, int16_t offset)
{
const char *opn = "flt_ldst";
TCGv t0 = tcg_temp_new();
gen_base_offset_addr(ctx, t0, base, offset);
/* Don't do NOP if destination is zero: we must perform the actual
memory access. */
switch (opc) {
case OPC_LWC1:
{
TCGv_i32 fp0 = tcg_temp_new_i32();
tcg_gen_qemu_ld32s(t0, t0, ctx->mem_idx);
tcg_gen_trunc_tl_i32(fp0, t0);
gen_store_fpr32(fp0, ft);
tcg_temp_free_i32(fp0);
}
opn = "lwc1";
break;
case OPC_SWC1:
{
TCGv_i32 fp0 = tcg_temp_new_i32();
TCGv t1 = tcg_temp_new();
gen_load_fpr32(fp0, ft);
tcg_gen_extu_i32_tl(t1, fp0);
tcg_gen_qemu_st32(t1, t0, ctx->mem_idx);
tcg_temp_free(t1);
tcg_temp_free_i32(fp0);
}
opn = "swc1";
break;
case OPC_LDC1:
{
TCGv_i64 fp0 = tcg_temp_new_i64();
tcg_gen_qemu_ld64(fp0, t0, ctx->mem_idx);
gen_store_fpr64(ctx, fp0, ft);
tcg_temp_free_i64(fp0);
}
opn = "ldc1";
break;
case OPC_SDC1:
{
TCGv_i64 fp0 = tcg_temp_new_i64();
gen_load_fpr64(ctx, fp0, ft);
tcg_gen_qemu_st64(fp0, t0, ctx->mem_idx);
tcg_temp_free_i64(fp0);
}
opn = "sdc1";
break;
default:
MIPS_INVAL(opn);
generate_exception(ctx, EXCP_RI);
goto out;
}
MIPS_DEBUG("%s %s, %d(%s)", opn, fregnames[ft], offset, regnames[base]);
out:
tcg_temp_free(t0);
}
static void gen_cop1_ldst(CPUState *env, DisasContext *ctx,
uint32_t op, int rt, int rs, int16_t imm)
{
if (env->CP0_Config1 & (1 << CP0C1_FP)) {
check_cp1_enabled(ctx);
gen_flt_ldst(ctx, op, rt, rs, imm);
} else {
generate_exception_err(ctx, EXCP_CpU, 1);
}
}
/* Arithmetic with immediate operand */
static void gen_arith_imm (CPUState *env, DisasContext *ctx, uint32_t opc,
int rt, int rs, int16_t imm)
{
target_ulong uimm = (target_long)imm; /* Sign extend to 32/64 bits */
const char *opn = "imm arith";
if (rt == 0 && opc != OPC_ADDI && opc != OPC_DADDI) {
/* If no destination, treat it as a NOP.
For addi, we must generate the overflow exception when needed. */
MIPS_DEBUG("NOP");
return;
}
switch (opc) {
case OPC_ADDI:
{
TCGv t0 = tcg_temp_local_new();
TCGv t1 = tcg_temp_new();
TCGv t2 = tcg_temp_new();
int l1 = gen_new_label();
gen_load_gpr(t1, rs);
tcg_gen_addi_tl(t0, t1, uimm);
tcg_gen_ext32s_tl(t0, t0);
tcg_gen_xori_tl(t1, t1, ~uimm);
tcg_gen_xori_tl(t2, t0, uimm);
tcg_gen_and_tl(t1, t1, t2);
tcg_temp_free(t2);
tcg_gen_brcondi_tl(TCG_COND_GE, t1, 0, l1);
tcg_temp_free(t1);
/* operands of same sign, result different sign */
generate_exception(ctx, EXCP_OVERFLOW);
gen_set_label(l1);
tcg_gen_ext32s_tl(t0, t0);
gen_store_gpr(t0, rt);
tcg_temp_free(t0);
}
opn = "addi";
break;
case OPC_ADDIU:
if (rs != 0) {
tcg_gen_addi_tl(cpu_gpr[rt], cpu_gpr[rs], uimm);
tcg_gen_ext32s_tl(cpu_gpr[rt], cpu_gpr[rt]);
} else {
tcg_gen_movi_tl(cpu_gpr[rt], uimm);
}
opn = "addiu";
break;
#if defined(TARGET_MIPS64)
case OPC_DADDI:
{
TCGv t0 = tcg_temp_local_new();
TCGv t1 = tcg_temp_new();
TCGv t2 = tcg_temp_new();
int l1 = gen_new_label();
gen_load_gpr(t1, rs);
tcg_gen_addi_tl(t0, t1, uimm);
tcg_gen_xori_tl(t1, t1, ~uimm);
tcg_gen_xori_tl(t2, t0, uimm);
tcg_gen_and_tl(t1, t1, t2);
tcg_temp_free(t2);
tcg_gen_brcondi_tl(TCG_COND_GE, t1, 0, l1);
tcg_temp_free(t1);
/* operands of same sign, result different sign */
generate_exception(ctx, EXCP_OVERFLOW);
gen_set_label(l1);
gen_store_gpr(t0, rt);
tcg_temp_free(t0);
}
opn = "daddi";
break;
case OPC_DADDIU:
if (rs != 0) {
tcg_gen_addi_tl(cpu_gpr[rt], cpu_gpr[rs], uimm);
} else {
tcg_gen_movi_tl(cpu_gpr[rt], uimm);
}
opn = "daddiu";
break;
#endif
}
MIPS_DEBUG("%s %s, %s, " TARGET_FMT_lx, opn, regnames[rt], regnames[rs], uimm);
}
/* Logic with immediate operand */
static void gen_logic_imm (CPUState *env, uint32_t opc, int rt, int rs, int16_t imm)
{
target_ulong uimm;
const char *opn = "imm logic";
if (rt == 0) {
/* If no destination, treat it as a NOP. */
MIPS_DEBUG("NOP");
return;
}
uimm = (uint16_t)imm;
switch (opc) {
case OPC_ANDI:
if (likely(rs != 0))
tcg_gen_andi_tl(cpu_gpr[rt], cpu_gpr[rs], uimm);
else
tcg_gen_movi_tl(cpu_gpr[rt], 0);
opn = "andi";
break;
case OPC_ORI:
if (rs != 0)
tcg_gen_ori_tl(cpu_gpr[rt], cpu_gpr[rs], uimm);
else
tcg_gen_movi_tl(cpu_gpr[rt], uimm);
opn = "ori";
break;
case OPC_XORI:
if (likely(rs != 0))
tcg_gen_xori_tl(cpu_gpr[rt], cpu_gpr[rs], uimm);
else
tcg_gen_movi_tl(cpu_gpr[rt], uimm);
opn = "xori";
break;
case OPC_LUI:
tcg_gen_movi_tl(cpu_gpr[rt], imm << 16);
opn = "lui";
break;
}
MIPS_DEBUG("%s %s, %s, " TARGET_FMT_lx, opn, regnames[rt], regnames[rs], uimm);
}
/* Set on less than with immediate operand */
static void gen_slt_imm (CPUState *env, uint32_t opc, int rt, int rs, int16_t imm)
{
target_ulong uimm = (target_long)imm; /* Sign extend to 32/64 bits */
const char *opn = "imm arith";
TCGv t0;
if (rt == 0) {
/* If no destination, treat it as a NOP. */
MIPS_DEBUG("NOP");
return;
}
t0 = tcg_temp_new();
gen_load_gpr(t0, rs);
switch (opc) {
case OPC_SLTI:
tcg_gen_setcondi_tl(TCG_COND_LT, cpu_gpr[rt], t0, uimm);
opn = "slti";
break;
case OPC_SLTIU:
tcg_gen_setcondi_tl(TCG_COND_LTU, cpu_gpr[rt], t0, uimm);
opn = "sltiu";
break;
}
MIPS_DEBUG("%s %s, %s, " TARGET_FMT_lx, opn, regnames[rt], regnames[rs], uimm);
tcg_temp_free(t0);
}
/* Shifts with immediate operand */
static void gen_shift_imm(CPUState *env, DisasContext *ctx, uint32_t opc,
int rt, int rs, int16_t imm)
{
target_ulong uimm = ((uint16_t)imm) & 0x1f;
const char *opn = "imm shift";
TCGv t0;
if (rt == 0) {
/* If no destination, treat it as a NOP. */
MIPS_DEBUG("NOP");
return;
}
t0 = tcg_temp_new();
gen_load_gpr(t0, rs);
switch (opc) {
case OPC_SLL:
tcg_gen_shli_tl(t0, t0, uimm);
tcg_gen_ext32s_tl(cpu_gpr[rt], t0);
opn = "sll";
break;
case OPC_SRA:
tcg_gen_sari_tl(cpu_gpr[rt], t0, uimm);
opn = "sra";
break;
case OPC_SRL:
if (uimm != 0) {
tcg_gen_ext32u_tl(t0, t0);
tcg_gen_shri_tl(cpu_gpr[rt], t0, uimm);
} else {
tcg_gen_ext32s_tl(cpu_gpr[rt], t0);
}
opn = "srl";
break;
case OPC_ROTR:
if (uimm != 0) {
TCGv_i32 t1 = tcg_temp_new_i32();
tcg_gen_trunc_tl_i32(t1, t0);
tcg_gen_rotri_i32(t1, t1, uimm);
tcg_gen_ext_i32_tl(cpu_gpr[rt], t1);
tcg_temp_free_i32(t1);
} else {
tcg_gen_ext32s_tl(cpu_gpr[rt], t0);
}
opn = "rotr";
break;
#if defined(TARGET_MIPS64)
case OPC_DSLL:
tcg_gen_shli_tl(cpu_gpr[rt], t0, uimm);
opn = "dsll";
break;
case OPC_DSRA:
tcg_gen_sari_tl(cpu_gpr[rt], t0, uimm);
opn = "dsra";
break;
case OPC_DSRL:
tcg_gen_shri_tl(cpu_gpr[rt], t0, uimm);
opn = "dsrl";
break;
case OPC_DROTR:
if (uimm != 0) {
tcg_gen_rotri_tl(cpu_gpr[rt], t0, uimm);
} else {
tcg_gen_mov_tl(cpu_gpr[rt], t0);
}
opn = "drotr";
break;
case OPC_DSLL32:
tcg_gen_shli_tl(cpu_gpr[rt], t0, uimm + 32);
opn = "dsll32";
break;
case OPC_DSRA32:
tcg_gen_sari_tl(cpu_gpr[rt], t0, uimm + 32);
opn = "dsra32";
break;
case OPC_DSRL32:
tcg_gen_shri_tl(cpu_gpr[rt], t0, uimm + 32);
opn = "dsrl32";
break;
case OPC_DROTR32:
tcg_gen_rotri_tl(cpu_gpr[rt], t0, uimm + 32);
opn = "drotr32";
break;
#endif
}
MIPS_DEBUG("%s %s, %s, " TARGET_FMT_lx, opn, regnames[rt], regnames[rs], uimm);
tcg_temp_free(t0);
}
/* Arithmetic */
static void gen_arith (CPUState *env, DisasContext *ctx, uint32_t opc,
int rd, int rs, int rt)
{
const char *opn = "arith";
if (rd == 0 && opc != OPC_ADD && opc != OPC_SUB
&& opc != OPC_DADD && opc != OPC_DSUB) {
/* If no destination, treat it as a NOP.
For add & sub, we must generate the overflow exception when needed. */
MIPS_DEBUG("NOP");
return;
}
switch (opc) {
case OPC_ADD:
{
TCGv t0 = tcg_temp_local_new();
TCGv t1 = tcg_temp_new();
TCGv t2 = tcg_temp_new();
int l1 = gen_new_label();
gen_load_gpr(t1, rs);
gen_load_gpr(t2, rt);
tcg_gen_add_tl(t0, t1, t2);
tcg_gen_ext32s_tl(t0, t0);
tcg_gen_xor_tl(t1, t1, t2);
tcg_gen_xor_tl(t2, t0, t2);
tcg_gen_andc_tl(t1, t2, t1);
tcg_temp_free(t2);
tcg_gen_brcondi_tl(TCG_COND_GE, t1, 0, l1);
tcg_temp_free(t1);
/* operands of same sign, result different sign */
generate_exception(ctx, EXCP_OVERFLOW);
gen_set_label(l1);
gen_store_gpr(t0, rd);
tcg_temp_free(t0);
}
opn = "add";
break;
case OPC_ADDU:
if (rs != 0 && rt != 0) {
tcg_gen_add_tl(cpu_gpr[rd], cpu_gpr[rs], cpu_gpr[rt]);
tcg_gen_ext32s_tl(cpu_gpr[rd], cpu_gpr[rd]);
} else if (rs == 0 && rt != 0) {
tcg_gen_mov_tl(cpu_gpr[rd], cpu_gpr[rt]);
} else if (rs != 0 && rt == 0) {
tcg_gen_mov_tl(cpu_gpr[rd], cpu_gpr[rs]);
} else {
tcg_gen_movi_tl(cpu_gpr[rd], 0);
}
opn = "addu";
break;
case OPC_SUB:
{
TCGv t0 = tcg_temp_local_new();
TCGv t1 = tcg_temp_new();
TCGv t2 = tcg_temp_new();
int l1 = gen_new_label();
gen_load_gpr(t1, rs);
gen_load_gpr(t2, rt);
tcg_gen_sub_tl(t0, t1, t2);
tcg_gen_ext32s_tl(t0, t0);
tcg_gen_xor_tl(t2, t1, t2);
tcg_gen_xor_tl(t1, t0, t1);
tcg_gen_and_tl(t1, t1, t2);
tcg_temp_free(t2);
tcg_gen_brcondi_tl(TCG_COND_GE, t1, 0, l1);
tcg_temp_free(t1);
/* operands of different sign, first operand and result different sign */
generate_exception(ctx, EXCP_OVERFLOW);
gen_set_label(l1);
gen_store_gpr(t0, rd);
tcg_temp_free(t0);
}
opn = "sub";
break;
case OPC_SUBU:
if (rs != 0 && rt != 0) {
tcg_gen_sub_tl(cpu_gpr[rd], cpu_gpr[rs], cpu_gpr[rt]);
tcg_gen_ext32s_tl(cpu_gpr[rd], cpu_gpr[rd]);
} else if (rs == 0 && rt != 0) {
tcg_gen_neg_tl(cpu_gpr[rd], cpu_gpr[rt]);
tcg_gen_ext32s_tl(cpu_gpr[rd], cpu_gpr[rd]);
} else if (rs != 0 && rt == 0) {
tcg_gen_mov_tl(cpu_gpr[rd], cpu_gpr[rs]);
} else {
tcg_gen_movi_tl(cpu_gpr[rd], 0);
}
opn = "subu";
break;
#if defined(TARGET_MIPS64)
case OPC_DADD:
{
TCGv t0 = tcg_temp_local_new();
TCGv t1 = tcg_temp_new();
TCGv t2 = tcg_temp_new();
int l1 = gen_new_label();
gen_load_gpr(t1, rs);
gen_load_gpr(t2, rt);
tcg_gen_add_tl(t0, t1, t2);
tcg_gen_xor_tl(t1, t1, t2);
tcg_gen_xor_tl(t2, t0, t2);
tcg_gen_andc_tl(t1, t2, t1);
tcg_temp_free(t2);
tcg_gen_brcondi_tl(TCG_COND_GE, t1, 0, l1);
tcg_temp_free(t1);
/* operands of same sign, result different sign */
generate_exception(ctx, EXCP_OVERFLOW);
gen_set_label(l1);
gen_store_gpr(t0, rd);
tcg_temp_free(t0);
}
opn = "dadd";
break;
case OPC_DADDU:
if (rs != 0 && rt != 0) {
tcg_gen_add_tl(cpu_gpr[rd], cpu_gpr[rs], cpu_gpr[rt]);
} else if (rs == 0 && rt != 0) {
tcg_gen_mov_tl(cpu_gpr[rd], cpu_gpr[rt]);
} else if (rs != 0 && rt == 0) {
tcg_gen_mov_tl(cpu_gpr[rd], cpu_gpr[rs]);
} else {
tcg_gen_movi_tl(cpu_gpr[rd], 0);
}
opn = "daddu";
break;
case OPC_DSUB:
{
TCGv t0 = tcg_temp_local_new();
TCGv t1 = tcg_temp_new();
TCGv t2 = tcg_temp_new();
int l1 = gen_new_label();
gen_load_gpr(t1, rs);
gen_load_gpr(t2, rt);
tcg_gen_sub_tl(t0, t1, t2);
tcg_gen_xor_tl(t2, t1, t2);
tcg_gen_xor_tl(t1, t0, t1);
tcg_gen_and_tl(t1, t1, t2);
tcg_temp_free(t2);
tcg_gen_brcondi_tl(TCG_COND_GE, t1, 0, l1);
tcg_temp_free(t1);
/* operands of different sign, first operand and result different sign */
generate_exception(ctx, EXCP_OVERFLOW);
gen_set_label(l1);
gen_store_gpr(t0, rd);
tcg_temp_free(t0);
}
opn = "dsub";
break;
case OPC_DSUBU:
if (rs != 0 && rt != 0) {
tcg_gen_sub_tl(cpu_gpr[rd], cpu_gpr[rs], cpu_gpr[rt]);
} else if (rs == 0 && rt != 0) {
tcg_gen_neg_tl(cpu_gpr[rd], cpu_gpr[rt]);
} else if (rs != 0 && rt == 0) {
tcg_gen_mov_tl(cpu_gpr[rd], cpu_gpr[rs]);
} else {
tcg_gen_movi_tl(cpu_gpr[rd], 0);
}
opn = "dsubu";
break;
#endif
case OPC_MUL:
if (likely(rs != 0 && rt != 0)) {
tcg_gen_mul_tl(cpu_gpr[rd], cpu_gpr[rs], cpu_gpr[rt]);
tcg_gen_ext32s_tl(cpu_gpr[rd], cpu_gpr[rd]);
} else {
tcg_gen_movi_tl(cpu_gpr[rd], 0);
}
opn = "mul";
break;
}
MIPS_DEBUG("%s %s, %s, %s", opn, regnames[rd], regnames[rs], regnames[rt]);
}
/* Conditional move */
static void gen_cond_move (CPUState *env, uint32_t opc, int rd, int rs, int rt)
{
const char *opn = "cond move";
int l1;
if (rd == 0) {
/* If no destination, treat it as a NOP.
For add & sub, we must generate the overflow exception when needed. */
MIPS_DEBUG("NOP");
return;
}
l1 = gen_new_label();
switch (opc) {
case OPC_MOVN:
if (likely(rt != 0))
tcg_gen_brcondi_tl(TCG_COND_EQ, cpu_gpr[rt], 0, l1);
else
tcg_gen_br(l1);
opn = "movn";
break;
case OPC_MOVZ:
if (likely(rt != 0))
tcg_gen_brcondi_tl(TCG_COND_NE, cpu_gpr[rt], 0, l1);
opn = "movz";
break;
}
if (rs != 0)
tcg_gen_mov_tl(cpu_gpr[rd], cpu_gpr[rs]);
else
tcg_gen_movi_tl(cpu_gpr[rd], 0);
gen_set_label(l1);
MIPS_DEBUG("%s %s, %s, %s", opn, regnames[rd], regnames[rs], regnames[rt]);
}
/* Logic */
static void gen_logic (CPUState *env, uint32_t opc, int rd, int rs, int rt)
{
const char *opn = "logic";
if (rd == 0) {
/* If no destination, treat it as a NOP. */
MIPS_DEBUG("NOP");
return;
}
switch (opc) {
case OPC_AND:
if (likely(rs != 0 && rt != 0)) {
tcg_gen_and_tl(cpu_gpr[rd], cpu_gpr[rs], cpu_gpr[rt]);
} else {
tcg_gen_movi_tl(cpu_gpr[rd], 0);
}
opn = "and";
break;
case OPC_NOR:
if (rs != 0 && rt != 0) {
tcg_gen_nor_tl(cpu_gpr[rd], cpu_gpr[rs], cpu_gpr[rt]);
} else if (rs == 0 && rt != 0) {
tcg_gen_not_tl(cpu_gpr[rd], cpu_gpr[rt]);
} else if (rs != 0 && rt == 0) {
tcg_gen_not_tl(cpu_gpr[rd], cpu_gpr[rs]);
} else {
tcg_gen_movi_tl(cpu_gpr[rd], ~((target_ulong)0));
}
opn = "nor";
break;
case OPC_OR:
if (likely(rs != 0 && rt != 0)) {
tcg_gen_or_tl(cpu_gpr[rd], cpu_gpr[rs], cpu_gpr[rt]);
} else if (rs == 0 && rt != 0) {
tcg_gen_mov_tl(cpu_gpr[rd], cpu_gpr[rt]);
} else if (rs != 0 && rt == 0) {
tcg_gen_mov_tl(cpu_gpr[rd], cpu_gpr[rs]);
} else {
tcg_gen_movi_tl(cpu_gpr[rd], 0);
}
opn = "or";
break;
case OPC_XOR:
if (likely(rs != 0 && rt != 0)) {
tcg_gen_xor_tl(cpu_gpr[rd], cpu_gpr[rs], cpu_gpr[rt]);
} else if (rs == 0 && rt != 0) {
tcg_gen_mov_tl(cpu_gpr[rd], cpu_gpr[rt]);
} else if (rs != 0 && rt == 0) {
tcg_gen_mov_tl(cpu_gpr[rd], cpu_gpr[rs]);
} else {
tcg_gen_movi_tl(cpu_gpr[rd], 0);
}
opn = "xor";
break;
}
MIPS_DEBUG("%s %s, %s, %s", opn, regnames[rd], regnames[rs], regnames[rt]);
}
/* Set on lower than */
static void gen_slt (CPUState *env, uint32_t opc, int rd, int rs, int rt)
{
const char *opn = "slt";
TCGv t0, t1;
if (rd == 0) {
/* If no destination, treat it as a NOP. */
MIPS_DEBUG("NOP");
return;
}
t0 = tcg_temp_new();
t1 = tcg_temp_new();
gen_load_gpr(t0, rs);
gen_load_gpr(t1, rt);
switch (opc) {
case OPC_SLT:
tcg_gen_setcond_tl(TCG_COND_LT, cpu_gpr[rd], t0, t1);
opn = "slt";
break;
case OPC_SLTU:
tcg_gen_setcond_tl(TCG_COND_LTU, cpu_gpr[rd], t0, t1);
opn = "sltu";
break;
}
MIPS_DEBUG("%s %s, %s, %s", opn, regnames[rd], regnames[rs], regnames[rt]);
tcg_temp_free(t0);
tcg_temp_free(t1);
}
/* Shifts */
static void gen_shift (CPUState *env, DisasContext *ctx, uint32_t opc,
int rd, int rs, int rt)
{
const char *opn = "shifts";
TCGv t0, t1;
if (rd == 0) {
/* If no destination, treat it as a NOP.
For add & sub, we must generate the overflow exception when needed. */
MIPS_DEBUG("NOP");
return;
}
t0 = tcg_temp_new();
t1 = tcg_temp_new();
gen_load_gpr(t0, rs);
gen_load_gpr(t1, rt);
switch (opc) {
case OPC_SLLV:
tcg_gen_andi_tl(t0, t0, 0x1f);
tcg_gen_shl_tl(t0, t1, t0);
tcg_gen_ext32s_tl(cpu_gpr[rd], t0);
opn = "sllv";
break;
case OPC_SRAV:
tcg_gen_andi_tl(t0, t0, 0x1f);
tcg_gen_sar_tl(cpu_gpr[rd], t1, t0);
opn = "srav";
break;
case OPC_SRLV:
tcg_gen_ext32u_tl(t1, t1);
tcg_gen_andi_tl(t0, t0, 0x1f);
tcg_gen_shr_tl(t0, t1, t0);
tcg_gen_ext32s_tl(cpu_gpr[rd], t0);
opn = "srlv";
break;
case OPC_ROTRV:
{
TCGv_i32 t2 = tcg_temp_new_i32();
TCGv_i32 t3 = tcg_temp_new_i32();
tcg_gen_trunc_tl_i32(t2, t0);
tcg_gen_trunc_tl_i32(t3, t1);
tcg_gen_andi_i32(t2, t2, 0x1f);
tcg_gen_rotr_i32(t2, t3, t2);
tcg_gen_ext_i32_tl(cpu_gpr[rd], t2);
tcg_temp_free_i32(t2);
tcg_temp_free_i32(t3);
opn = "rotrv";
}
break;
#if defined(TARGET_MIPS64)
case OPC_DSLLV:
tcg_gen_andi_tl(t0, t0, 0x3f);
tcg_gen_shl_tl(cpu_gpr[rd], t1, t0);
opn = "dsllv";
break;
case OPC_DSRAV:
tcg_gen_andi_tl(t0, t0, 0x3f);
tcg_gen_sar_tl(cpu_gpr[rd], t1, t0);
opn = "dsrav";
break;
case OPC_DSRLV:
tcg_gen_andi_tl(t0, t0, 0x3f);
tcg_gen_shr_tl(cpu_gpr[rd], t1, t0);
opn = "dsrlv";
break;
case OPC_DROTRV:
tcg_gen_andi_tl(t0, t0, 0x3f);
tcg_gen_rotr_tl(cpu_gpr[rd], t1, t0);
opn = "drotrv";
break;
#endif
}
MIPS_DEBUG("%s %s, %s, %s", opn, regnames[rd], regnames[rs], regnames[rt]);
tcg_temp_free(t0);
tcg_temp_free(t1);
}
/* Arithmetic on HI/LO registers */
static void gen_HILO (DisasContext *ctx, uint32_t opc, int reg)
{
const char *opn = "hilo";
if (reg == 0 && (opc == OPC_MFHI || opc == OPC_MFLO)) {
/* Treat as NOP. */
MIPS_DEBUG("NOP");
return;
}
switch (opc) {
case OPC_MFHI:
tcg_gen_mov_tl(cpu_gpr[reg], cpu_HI[0]);
opn = "mfhi";
break;
case OPC_MFLO:
tcg_gen_mov_tl(cpu_gpr[reg], cpu_LO[0]);
opn = "mflo";
break;
case OPC_MTHI:
if (reg != 0)
tcg_gen_mov_tl(cpu_HI[0], cpu_gpr[reg]);
else
tcg_gen_movi_tl(cpu_HI[0], 0);
opn = "mthi";
break;
case OPC_MTLO:
if (reg != 0)
tcg_gen_mov_tl(cpu_LO[0], cpu_gpr[reg]);
else
tcg_gen_movi_tl(cpu_LO[0], 0);
opn = "mtlo";
break;
}
MIPS_DEBUG("%s %s", opn, regnames[reg]);
}
static void gen_muldiv (DisasContext *ctx, uint32_t opc,
int rs, int rt)
{
const char *opn = "mul/div";
TCGv t0, t1;
switch (opc) {
case OPC_DIV:
case OPC_DIVU:
#if defined(TARGET_MIPS64)
case OPC_DDIV:
case OPC_DDIVU:
#endif
t0 = tcg_temp_local_new();
t1 = tcg_temp_local_new();
break;
default:
t0 = tcg_temp_new();
t1 = tcg_temp_new();
break;
}
gen_load_gpr(t0, rs);
gen_load_gpr(t1, rt);
switch (opc) {
case OPC_DIV:
{
int l1 = gen_new_label();
int l2 = gen_new_label();
tcg_gen_ext32s_tl(t0, t0);
tcg_gen_ext32s_tl(t1, t1);
tcg_gen_brcondi_tl(TCG_COND_EQ, t1, 0, l1);
tcg_gen_brcondi_tl(TCG_COND_NE, t0, INT_MIN, l2);
tcg_gen_brcondi_tl(TCG_COND_NE, t1, -1, l2);
tcg_gen_mov_tl(cpu_LO[0], t0);
tcg_gen_movi_tl(cpu_HI[0], 0);
tcg_gen_br(l1);
gen_set_label(l2);
tcg_gen_div_tl(cpu_LO[0], t0, t1);
tcg_gen_rem_tl(cpu_HI[0], t0, t1);
tcg_gen_ext32s_tl(cpu_LO[0], cpu_LO[0]);
tcg_gen_ext32s_tl(cpu_HI[0], cpu_HI[0]);
gen_set_label(l1);
}
opn = "div";
break;
case OPC_DIVU:
{
int l1 = gen_new_label();
tcg_gen_ext32u_tl(t0, t0);
tcg_gen_ext32u_tl(t1, t1);
tcg_gen_brcondi_tl(TCG_COND_EQ, t1, 0, l1);
tcg_gen_divu_tl(cpu_LO[0], t0, t1);
tcg_gen_remu_tl(cpu_HI[0], t0, t1);
tcg_gen_ext32s_tl(cpu_LO[0], cpu_LO[0]);
tcg_gen_ext32s_tl(cpu_HI[0], cpu_HI[0]);
gen_set_label(l1);
}
opn = "divu";
break;
case OPC_MULT:
{
TCGv_i64 t2 = tcg_temp_new_i64();
TCGv_i64 t3 = tcg_temp_new_i64();
tcg_gen_ext_tl_i64(t2, t0);
tcg_gen_ext_tl_i64(t3, t1);
tcg_gen_mul_i64(t2, t2, t3);
tcg_temp_free_i64(t3);
tcg_gen_trunc_i64_tl(t0, t2);
tcg_gen_shri_i64(t2, t2, 32);
tcg_gen_trunc_i64_tl(t1, t2);
tcg_temp_free_i64(t2);
tcg_gen_ext32s_tl(cpu_LO[0], t0);
tcg_gen_ext32s_tl(cpu_HI[0], t1);
}
opn = "mult";
break;
case OPC_MULTU:
{
TCGv_i64 t2 = tcg_temp_new_i64();
TCGv_i64 t3 = tcg_temp_new_i64();
tcg_gen_ext32u_tl(t0, t0);
tcg_gen_ext32u_tl(t1, t1);
tcg_gen_extu_tl_i64(t2, t0);
tcg_gen_extu_tl_i64(t3, t1);
tcg_gen_mul_i64(t2, t2, t3);
tcg_temp_free_i64(t3);
tcg_gen_trunc_i64_tl(t0, t2);
tcg_gen_shri_i64(t2, t2, 32);
tcg_gen_trunc_i64_tl(t1, t2);
tcg_temp_free_i64(t2);
tcg_gen_ext32s_tl(cpu_LO[0], t0);
tcg_gen_ext32s_tl(cpu_HI[0], t1);
}
opn = "multu";
break;
#if defined(TARGET_MIPS64)
case OPC_DDIV:
{
int l1 = gen_new_label();
int l2 = gen_new_label();
tcg_gen_brcondi_tl(TCG_COND_EQ, t1, 0, l1);
tcg_gen_brcondi_tl(TCG_COND_NE, t0, -1LL << 63, l2);
tcg_gen_brcondi_tl(TCG_COND_NE, t1, -1LL, l2);
tcg_gen_mov_tl(cpu_LO[0], t0);
tcg_gen_movi_tl(cpu_HI[0], 0);
tcg_gen_br(l1);
gen_set_label(l2);
tcg_gen_div_i64(cpu_LO[0], t0, t1);
tcg_gen_rem_i64(cpu_HI[0], t0, t1);
gen_set_label(l1);
}
opn = "ddiv";
break;
case OPC_DDIVU:
{
int l1 = gen_new_label();
tcg_gen_brcondi_tl(TCG_COND_EQ, t1, 0, l1);
tcg_gen_divu_i64(cpu_LO[0], t0, t1);
tcg_gen_remu_i64(cpu_HI[0], t0, t1);
gen_set_label(l1);
}
opn = "ddivu";
break;
case OPC_DMULT:
gen_helper_dmult(t0, t1);
opn = "dmult";
break;
case OPC_DMULTU:
gen_helper_dmultu(t0, t1);
opn = "dmultu";
break;
#endif
case OPC_MADD:
{
TCGv_i64 t2 = tcg_temp_new_i64();
TCGv_i64 t3 = tcg_temp_new_i64();
tcg_gen_ext_tl_i64(t2, t0);
tcg_gen_ext_tl_i64(t3, t1);
tcg_gen_mul_i64(t2, t2, t3);
tcg_gen_concat_tl_i64(t3, cpu_LO[0], cpu_HI[0]);
tcg_gen_add_i64(t2, t2, t3);
tcg_temp_free_i64(t3);
tcg_gen_trunc_i64_tl(t0, t2);
tcg_gen_shri_i64(t2, t2, 32);
tcg_gen_trunc_i64_tl(t1, t2);
tcg_temp_free_i64(t2);
tcg_gen_ext32s_tl(cpu_LO[0], t0);
tcg_gen_ext32s_tl(cpu_HI[0], t1);
}
opn = "madd";
break;
case OPC_MADDU:
{
TCGv_i64 t2 = tcg_temp_new_i64();
TCGv_i64 t3 = tcg_temp_new_i64();
tcg_gen_ext32u_tl(t0, t0);
tcg_gen_ext32u_tl(t1, t1);
tcg_gen_extu_tl_i64(t2, t0);
tcg_gen_extu_tl_i64(t3, t1);
tcg_gen_mul_i64(t2, t2, t3);
tcg_gen_concat_tl_i64(t3, cpu_LO[0], cpu_HI[0]);
tcg_gen_add_i64(t2, t2, t3);
tcg_temp_free_i64(t3);
tcg_gen_trunc_i64_tl(t0, t2);
tcg_gen_shri_i64(t2, t2, 32);
tcg_gen_trunc_i64_tl(t1, t2);
tcg_temp_free_i64(t2);
tcg_gen_ext32s_tl(cpu_LO[0], t0);
tcg_gen_ext32s_tl(cpu_HI[0], t1);
}
opn = "maddu";
break;
case OPC_MSUB:
{
TCGv_i64 t2 = tcg_temp_new_i64();
TCGv_i64 t3 = tcg_temp_new_i64();
tcg_gen_ext_tl_i64(t2, t0);
tcg_gen_ext_tl_i64(t3, t1);
tcg_gen_mul_i64(t2, t2, t3);
tcg_gen_concat_tl_i64(t3, cpu_LO[0], cpu_HI[0]);
tcg_gen_sub_i64(t2, t3, t2);
tcg_temp_free_i64(t3);
tcg_gen_trunc_i64_tl(t0, t2);
tcg_gen_shri_i64(t2, t2, 32);
tcg_gen_trunc_i64_tl(t1, t2);
tcg_temp_free_i64(t2);
tcg_gen_ext32s_tl(cpu_LO[0], t0);
tcg_gen_ext32s_tl(cpu_HI[0], t1);
}
opn = "msub";
break;
case OPC_MSUBU:
{
TCGv_i64 t2 = tcg_temp_new_i64();
TCGv_i64 t3 = tcg_temp_new_i64();
tcg_gen_ext32u_tl(t0, t0);
tcg_gen_ext32u_tl(t1, t1);
tcg_gen_extu_tl_i64(t2, t0);
tcg_gen_extu_tl_i64(t3, t1);
tcg_gen_mul_i64(t2, t2, t3);
tcg_gen_concat_tl_i64(t3, cpu_LO[0], cpu_HI[0]);
tcg_gen_sub_i64(t2, t3, t2);
tcg_temp_free_i64(t3);
tcg_gen_trunc_i64_tl(t0, t2);
tcg_gen_shri_i64(t2, t2, 32);
tcg_gen_trunc_i64_tl(t1, t2);
tcg_temp_free_i64(t2);
tcg_gen_ext32s_tl(cpu_LO[0], t0);
tcg_gen_ext32s_tl(cpu_HI[0], t1);
}
opn = "msubu";
break;
default:
MIPS_INVAL(opn);
generate_exception(ctx, EXCP_RI);
goto out;
}
MIPS_DEBUG("%s %s %s", opn, regnames[rs], regnames[rt]);
out:
tcg_temp_free(t0);
tcg_temp_free(t1);
}
static void gen_mul_vr54xx (DisasContext *ctx, uint32_t opc,
int rd, int rs, int rt)
{
const char *opn = "mul vr54xx";
TCGv t0 = tcg_temp_new();
TCGv t1 = tcg_temp_new();
gen_load_gpr(t0, rs);
gen_load_gpr(t1, rt);
switch (opc) {
case OPC_VR54XX_MULS:
gen_helper_muls(t0, t0, t1);
opn = "muls";
break;
case OPC_VR54XX_MULSU:
gen_helper_mulsu(t0, t0, t1);
opn = "mulsu";
break;
case OPC_VR54XX_MACC:
gen_helper_macc(t0, t0, t1);
opn = "macc";
break;
case OPC_VR54XX_MACCU:
gen_helper_maccu(t0, t0, t1);
opn = "maccu";
break;
case OPC_VR54XX_MSAC:
gen_helper_msac(t0, t0, t1);
opn = "msac";
break;
case OPC_VR54XX_MSACU:
gen_helper_msacu(t0, t0, t1);
opn = "msacu";
break;
case OPC_VR54XX_MULHI:
gen_helper_mulhi(t0, t0, t1);
opn = "mulhi";
break;
case OPC_VR54XX_MULHIU:
gen_helper_mulhiu(t0, t0, t1);
opn = "mulhiu";
break;
case OPC_VR54XX_MULSHI:
gen_helper_mulshi(t0, t0, t1);
opn = "mulshi";
break;
case OPC_VR54XX_MULSHIU:
gen_helper_mulshiu(t0, t0, t1);
opn = "mulshiu";
break;
case OPC_VR54XX_MACCHI:
gen_helper_macchi(t0, t0, t1);
opn = "macchi";
break;
case OPC_VR54XX_MACCHIU:
gen_helper_macchiu(t0, t0, t1);
opn = "macchiu";
break;
case OPC_VR54XX_MSACHI:
gen_helper_msachi(t0, t0, t1);
opn = "msachi";
break;
case OPC_VR54XX_MSACHIU:
gen_helper_msachiu(t0, t0, t1);
opn = "msachiu";
break;
default:
MIPS_INVAL("mul vr54xx");
generate_exception(ctx, EXCP_RI);
goto out;
}
gen_store_gpr(t0, rd);
MIPS_DEBUG("%s %s, %s, %s", opn, regnames[rd], regnames[rs], regnames[rt]);
out:
tcg_temp_free(t0);
tcg_temp_free(t1);
}
static void gen_cl (DisasContext *ctx, uint32_t opc,
int rd, int rs)
{
const char *opn = "CLx";
TCGv t0;
if (rd == 0) {
/* Treat as NOP. */
MIPS_DEBUG("NOP");
return;
}
t0 = tcg_temp_new();
gen_load_gpr(t0, rs);
switch (opc) {
case OPC_CLO:
gen_helper_clo(cpu_gpr[rd], t0);
opn = "clo";
break;
case OPC_CLZ:
gen_helper_clz(cpu_gpr[rd], t0);
opn = "clz";
break;
#if defined(TARGET_MIPS64)
case OPC_DCLO:
gen_helper_dclo(cpu_gpr[rd], t0);
opn = "dclo";
break;
case OPC_DCLZ:
gen_helper_dclz(cpu_gpr[rd], t0);
opn = "dclz";
break;
#endif
}
MIPS_DEBUG("%s %s, %s", opn, regnames[rd], regnames[rs]);
tcg_temp_free(t0);
}
/* Traps */
static void gen_trap (DisasContext *ctx, uint32_t opc,
int rs, int rt, int16_t imm)
{
int cond;
TCGv t0 = tcg_temp_new();
TCGv t1 = tcg_temp_new();
cond = 0;
/* Load needed operands */
switch (opc) {
case OPC_TEQ:
case OPC_TGE:
case OPC_TGEU:
case OPC_TLT:
case OPC_TLTU:
case OPC_TNE:
/* Compare two registers */
if (rs != rt) {
gen_load_gpr(t0, rs);
gen_load_gpr(t1, rt);
cond = 1;
}
break;
case OPC_TEQI:
case OPC_TGEI:
case OPC_TGEIU:
case OPC_TLTI:
case OPC_TLTIU:
case OPC_TNEI:
/* Compare register to immediate */
if (rs != 0 || imm != 0) {
gen_load_gpr(t0, rs);
tcg_gen_movi_tl(t1, (int32_t)imm);
cond = 1;
}
break;
}
if (cond == 0) {
switch (opc) {
case OPC_TEQ: /* rs == rs */
case OPC_TEQI: /* r0 == 0 */
case OPC_TGE: /* rs >= rs */
case OPC_TGEI: /* r0 >= 0 */
case OPC_TGEU: /* rs >= rs unsigned */
case OPC_TGEIU: /* r0 >= 0 unsigned */
/* Always trap */
generate_exception(ctx, EXCP_TRAP);
break;
case OPC_TLT: /* rs < rs */
case OPC_TLTI: /* r0 < 0 */
case OPC_TLTU: /* rs < rs unsigned */
case OPC_TLTIU: /* r0 < 0 unsigned */
case OPC_TNE: /* rs != rs */
case OPC_TNEI: /* r0 != 0 */
/* Never trap: treat as NOP. */
break;
}
} else {
int l1 = gen_new_label();
switch (opc) {
case OPC_TEQ:
case OPC_TEQI:
tcg_gen_brcond_tl(TCG_COND_NE, t0, t1, l1);
break;
case OPC_TGE:
case OPC_TGEI:
tcg_gen_brcond_tl(TCG_COND_LT, t0, t1, l1);
break;
case OPC_TGEU:
case OPC_TGEIU:
tcg_gen_brcond_tl(TCG_COND_LTU, t0, t1, l1);
break;
case OPC_TLT:
case OPC_TLTI:
tcg_gen_brcond_tl(TCG_COND_GE, t0, t1, l1);
break;
case OPC_TLTU:
case OPC_TLTIU:
tcg_gen_brcond_tl(TCG_COND_GEU, t0, t1, l1);
break;
case OPC_TNE:
case OPC_TNEI:
tcg_gen_brcond_tl(TCG_COND_EQ, t0, t1, l1);
break;
}
generate_exception(ctx, EXCP_TRAP);
gen_set_label(l1);
}
tcg_temp_free(t0);
tcg_temp_free(t1);
}
static inline void gen_goto_tb(DisasContext *ctx, int n, target_ulong dest)
{
TranslationBlock *tb;
tb = ctx->tb;
if ((tb->pc & TARGET_PAGE_MASK) == (dest & TARGET_PAGE_MASK) &&
likely(!ctx->singlestep_enabled)) {
tcg_gen_goto_tb(n);
gen_save_pc(dest);
tcg_gen_exit_tb((long)tb + n);
} else {
gen_save_pc(dest);
if (ctx->singlestep_enabled) {
save_cpu_state(ctx, 0);
gen_helper_0i(raise_exception, EXCP_DEBUG);
}
tcg_gen_exit_tb(0);
}
}
/* Branches (before delay slot) */
static void gen_compute_branch (DisasContext *ctx, uint32_t opc,
int insn_bytes,
int rs, int rt, int32_t offset)
{
target_ulong btgt = -1;
int blink = 0;
int bcond_compute = 0;
TCGv t0 = tcg_temp_new();
TCGv t1 = tcg_temp_new();
if (ctx->hflags & MIPS_HFLAG_BMASK) {
#ifdef MIPS_DEBUG_DISAS
LOG_DISAS("Branch in delay slot at PC 0x" TARGET_FMT_lx "\n", ctx->pc);
#endif
generate_exception(ctx, EXCP_RI);
goto out;
}
/* Load needed operands */
switch (opc) {
case OPC_BEQ:
case OPC_BEQL:
case OPC_BNE:
case OPC_BNEL:
/* Compare two registers */
if (rs != rt) {
gen_load_gpr(t0, rs);
gen_load_gpr(t1, rt);
bcond_compute = 1;
}
btgt = ctx->pc + insn_bytes + offset;
break;
case OPC_BGEZ:
case OPC_BGEZAL:
case OPC_BGEZALS:
case OPC_BGEZALL:
case OPC_BGEZL:
case OPC_BGTZ:
case OPC_BGTZL:
case OPC_BLEZ:
case OPC_BLEZL:
case OPC_BLTZ:
case OPC_BLTZAL:
case OPC_BLTZALS:
case OPC_BLTZALL:
case OPC_BLTZL:
/* Compare to zero */
if (rs != 0) {
gen_load_gpr(t0, rs);
bcond_compute = 1;
}
btgt = ctx->pc + insn_bytes + offset;
break;
case OPC_J:
case OPC_JAL:
case OPC_JALX:
case OPC_JALS:
case OPC_JALXS:
/* Jump to immediate */
btgt = ((ctx->pc + insn_bytes) & (int32_t)0xF0000000) | (uint32_t)offset;
break;
case OPC_JR:
case OPC_JALR:
case OPC_JALRC:
case OPC_JALRS:
/* Jump to register */
if (offset != 0 && offset != 16) {
/* Hint = 0 is JR/JALR, hint 16 is JR.HB/JALR.HB, the
others are reserved. */
MIPS_INVAL("jump hint");
generate_exception(ctx, EXCP_RI);
goto out;
}
gen_load_gpr(btarget, rs);
break;
default:
MIPS_INVAL("branch/jump");
generate_exception(ctx, EXCP_RI);
goto out;
}
if (bcond_compute == 0) {
/* No condition to be computed */
switch (opc) {
case OPC_BEQ: /* rx == rx */
case OPC_BEQL: /* rx == rx likely */
case OPC_BGEZ: /* 0 >= 0 */
case OPC_BGEZL: /* 0 >= 0 likely */
case OPC_BLEZ: /* 0 <= 0 */
case OPC_BLEZL: /* 0 <= 0 likely */
/* Always take */
ctx->hflags |= MIPS_HFLAG_B;
MIPS_DEBUG("balways");
break;
case OPC_BGEZALS:
case OPC_BGEZAL: /* 0 >= 0 */
case OPC_BGEZALL: /* 0 >= 0 likely */
ctx->hflags |= (opc == OPC_BGEZALS
? MIPS_HFLAG_BDS16
: MIPS_HFLAG_BDS32);
/* Always take and link */
blink = 31;
ctx->hflags |= MIPS_HFLAG_B;
MIPS_DEBUG("balways and link");
break;
case OPC_BNE: /* rx != rx */
case OPC_BGTZ: /* 0 > 0 */
case OPC_BLTZ: /* 0 < 0 */
/* Treat as NOP. */
MIPS_DEBUG("bnever (NOP)");
goto out;
case OPC_BLTZALS:
case OPC_BLTZAL: /* 0 < 0 */
ctx->hflags |= (opc == OPC_BLTZALS
? MIPS_HFLAG_BDS16
: MIPS_HFLAG_BDS32);
/* Handle as an unconditional branch to get correct delay
slot checking. */
blink = 31;
btgt = ctx->pc + (opc == OPC_BLTZALS ? 6 : 8);
ctx->hflags |= MIPS_HFLAG_B;
MIPS_DEBUG("bnever and link");
break;
case OPC_BLTZALL: /* 0 < 0 likely */
tcg_gen_movi_tl(cpu_gpr[31], ctx->pc + 8);
/* Skip the instruction in the delay slot */
MIPS_DEBUG("bnever, link and skip");
ctx->pc += 4;
goto out;
case OPC_BNEL: /* rx != rx likely */
case OPC_BGTZL: /* 0 > 0 likely */
case OPC_BLTZL: /* 0 < 0 likely */
/* Skip the instruction in the delay slot */
MIPS_DEBUG("bnever and skip");
ctx->pc += 4;
goto out;
case OPC_J:
ctx->hflags |= MIPS_HFLAG_B;
MIPS_DEBUG("j " TARGET_FMT_lx, btgt);
break;
case OPC_JALXS:
case OPC_JALX:
ctx->hflags |= MIPS_HFLAG_BX;
/* Fallthrough */
case OPC_JALS:
case OPC_JAL:
blink = 31;
ctx->hflags |= MIPS_HFLAG_B;
ctx->hflags |= ((opc == OPC_JALS || opc == OPC_JALXS)
? MIPS_HFLAG_BDS16
: MIPS_HFLAG_BDS32);
MIPS_DEBUG("jal " TARGET_FMT_lx, btgt);
break;
case OPC_JR:
ctx->hflags |= MIPS_HFLAG_BR;
if (insn_bytes == 4)
ctx->hflags |= MIPS_HFLAG_BDS32;
MIPS_DEBUG("jr %s", regnames[rs]);
break;
case OPC_JALRS:
case OPC_JALR:
case OPC_JALRC:
blink = rt;
ctx->hflags |= MIPS_HFLAG_BR;
ctx->hflags |= (opc == OPC_JALRS
? MIPS_HFLAG_BDS16
: MIPS_HFLAG_BDS32);
MIPS_DEBUG("jalr %s, %s", regnames[rt], regnames[rs]);
break;
default:
MIPS_INVAL("branch/jump");
generate_exception(ctx, EXCP_RI);
goto out;
}
} else {
switch (opc) {
case OPC_BEQ:
tcg_gen_setcond_tl(TCG_COND_EQ, bcond, t0, t1);
MIPS_DEBUG("beq %s, %s, " TARGET_FMT_lx,
regnames[rs], regnames[rt], btgt);
goto not_likely;
case OPC_BEQL:
tcg_gen_setcond_tl(TCG_COND_EQ, bcond, t0, t1);
MIPS_DEBUG("beql %s, %s, " TARGET_FMT_lx,
regnames[rs], regnames[rt], btgt);
goto likely;
case OPC_BNE:
tcg_gen_setcond_tl(TCG_COND_NE, bcond, t0, t1);
MIPS_DEBUG("bne %s, %s, " TARGET_FMT_lx,
regnames[rs], regnames[rt], btgt);
goto not_likely;
case OPC_BNEL:
tcg_gen_setcond_tl(TCG_COND_NE, bcond, t0, t1);
MIPS_DEBUG("bnel %s, %s, " TARGET_FMT_lx,
regnames[rs], regnames[rt], btgt);
goto likely;
case OPC_BGEZ:
tcg_gen_setcondi_tl(TCG_COND_GE, bcond, t0, 0);
MIPS_DEBUG("bgez %s, " TARGET_FMT_lx, regnames[rs], btgt);
goto not_likely;
case OPC_BGEZL:
tcg_gen_setcondi_tl(TCG_COND_GE, bcond, t0, 0);
MIPS_DEBUG("bgezl %s, " TARGET_FMT_lx, regnames[rs], btgt);
goto likely;
case OPC_BGEZALS:
case OPC_BGEZAL:
ctx->hflags |= (opc == OPC_BGEZALS
? MIPS_HFLAG_BDS16
: MIPS_HFLAG_BDS32);
tcg_gen_setcondi_tl(TCG_COND_GE, bcond, t0, 0);
MIPS_DEBUG("bgezal %s, " TARGET_FMT_lx, regnames[rs], btgt);
blink = 31;
goto not_likely;
case OPC_BGEZALL:
tcg_gen_setcondi_tl(TCG_COND_GE, bcond, t0, 0);
blink = 31;
MIPS_DEBUG("bgezall %s, " TARGET_FMT_lx, regnames[rs], btgt);
goto likely;
case OPC_BGTZ:
tcg_gen_setcondi_tl(TCG_COND_GT, bcond, t0, 0);
MIPS_DEBUG("bgtz %s, " TARGET_FMT_lx, regnames[rs], btgt);
goto not_likely;
case OPC_BGTZL:
tcg_gen_setcondi_tl(TCG_COND_GT, bcond, t0, 0);
MIPS_DEBUG("bgtzl %s, " TARGET_FMT_lx, regnames[rs], btgt);
goto likely;
case OPC_BLEZ:
tcg_gen_setcondi_tl(TCG_COND_LE, bcond, t0, 0);
MIPS_DEBUG("blez %s, " TARGET_FMT_lx, regnames[rs], btgt);
goto not_likely;
case OPC_BLEZL:
tcg_gen_setcondi_tl(TCG_COND_LE, bcond, t0, 0);
MIPS_DEBUG("blezl %s, " TARGET_FMT_lx, regnames[rs], btgt);
goto likely;
case OPC_BLTZ:
tcg_gen_setcondi_tl(TCG_COND_LT, bcond, t0, 0);
MIPS_DEBUG("bltz %s, " TARGET_FMT_lx, regnames[rs], btgt);
goto not_likely;
case OPC_BLTZL:
tcg_gen_setcondi_tl(TCG_COND_LT, bcond, t0, 0);
MIPS_DEBUG("bltzl %s, " TARGET_FMT_lx, regnames[rs], btgt);
goto likely;
case OPC_BLTZALS:
case OPC_BLTZAL:
ctx->hflags |= (opc == OPC_BLTZALS
? MIPS_HFLAG_BDS16
: MIPS_HFLAG_BDS32);
tcg_gen_setcondi_tl(TCG_COND_LT, bcond, t0, 0);
blink = 31;
MIPS_DEBUG("bltzal %s, " TARGET_FMT_lx, regnames[rs], btgt);
not_likely:
ctx->hflags |= MIPS_HFLAG_BC;
break;
case OPC_BLTZALL:
tcg_gen_setcondi_tl(TCG_COND_LT, bcond, t0, 0);
blink = 31;
MIPS_DEBUG("bltzall %s, " TARGET_FMT_lx, regnames[rs], btgt);
likely:
ctx->hflags |= MIPS_HFLAG_BL;
break;
default:
MIPS_INVAL("conditional branch/jump");
generate_exception(ctx, EXCP_RI);
goto out;
}
}
MIPS_DEBUG("enter ds: link %d cond %02x target " TARGET_FMT_lx,
blink, ctx->hflags, btgt);
ctx->btarget = btgt;
if (blink > 0) {
int post_delay = insn_bytes;
int lowbit = !!(ctx->hflags & MIPS_HFLAG_M16);
if (opc != OPC_JALRC)
post_delay += ((ctx->hflags & MIPS_HFLAG_BDS16) ? 2 : 4);
tcg_gen_movi_tl(cpu_gpr[blink], ctx->pc + post_delay + lowbit);
}
out:
if (insn_bytes == 2)
ctx->hflags |= MIPS_HFLAG_B16;
tcg_temp_free(t0);
tcg_temp_free(t1);
}
/* special3 bitfield operations */
static void gen_bitops (DisasContext *ctx, uint32_t opc, int rt,
int rs, int lsb, int msb)
{
TCGv t0 = tcg_temp_new();
TCGv t1 = tcg_temp_new();
target_ulong mask;
gen_load_gpr(t1, rs);
switch (opc) {
case OPC_EXT:
if (lsb + msb > 31)
goto fail;
tcg_gen_shri_tl(t0, t1, lsb);
if (msb != 31) {
tcg_gen_andi_tl(t0, t0, (1 << (msb + 1)) - 1);
} else {
tcg_gen_ext32s_tl(t0, t0);
}
break;
#if defined(TARGET_MIPS64)
case OPC_DEXTM:
tcg_gen_shri_tl(t0, t1, lsb);
if (msb != 31) {
tcg_gen_andi_tl(t0, t0, (1ULL << (msb + 1 + 32)) - 1);
}
break;
case OPC_DEXTU:
tcg_gen_shri_tl(t0, t1, lsb + 32);
tcg_gen_andi_tl(t0, t0, (1ULL << (msb + 1)) - 1);
break;
case OPC_DEXT:
tcg_gen_shri_tl(t0, t1, lsb);
tcg_gen_andi_tl(t0, t0, (1ULL << (msb + 1)) - 1);
break;
#endif
case OPC_INS:
if (lsb > msb)
goto fail;
mask = ((msb - lsb + 1 < 32) ? ((1 << (msb - lsb + 1)) - 1) : ~0) << lsb;
gen_load_gpr(t0, rt);
tcg_gen_andi_tl(t0, t0, ~mask);
tcg_gen_shli_tl(t1, t1, lsb);
tcg_gen_andi_tl(t1, t1, mask);
tcg_gen_or_tl(t0, t0, t1);
tcg_gen_ext32s_tl(t0, t0);
break;
#if defined(TARGET_MIPS64)
case OPC_DINSM:
if (lsb > msb)
goto fail;
mask = ((msb - lsb + 1 + 32 < 64) ? ((1ULL << (msb - lsb + 1 + 32)) - 1) : ~0ULL) << lsb;
gen_load_gpr(t0, rt);
tcg_gen_andi_tl(t0, t0, ~mask);
tcg_gen_shli_tl(t1, t1, lsb);
tcg_gen_andi_tl(t1, t1, mask);
tcg_gen_or_tl(t0, t0, t1);
break;
case OPC_DINSU:
if (lsb > msb)
goto fail;
mask = ((1ULL << (msb - lsb + 1)) - 1) << (lsb + 32);
gen_load_gpr(t0, rt);
tcg_gen_andi_tl(t0, t0, ~mask);
tcg_gen_shli_tl(t1, t1, lsb + 32);
tcg_gen_andi_tl(t1, t1, mask);
tcg_gen_or_tl(t0, t0, t1);
break;
case OPC_DINS:
if (lsb > msb)
goto fail;
gen_load_gpr(t0, rt);
mask = ((1ULL << (msb - lsb + 1)) - 1) << lsb;
gen_load_gpr(t0, rt);
tcg_gen_andi_tl(t0, t0, ~mask);
tcg_gen_shli_tl(t1, t1, lsb);
tcg_gen_andi_tl(t1, t1, mask);
tcg_gen_or_tl(t0, t0, t1);
break;
#endif
default:
fail:
MIPS_INVAL("bitops");
generate_exception(ctx, EXCP_RI);
tcg_temp_free(t0);
tcg_temp_free(t1);
return;
}
gen_store_gpr(t0, rt);
tcg_temp_free(t0);
tcg_temp_free(t1);
}
static void gen_bshfl (DisasContext *ctx, uint32_t op2, int rt, int rd)
{
TCGv t0;
if (rd == 0) {
/* If no destination, treat it as a NOP. */
MIPS_DEBUG("NOP");
return;
}
t0 = tcg_temp_new();
gen_load_gpr(t0, rt);
switch (op2) {
case OPC_WSBH:
{
TCGv t1 = tcg_temp_new();
tcg_gen_shri_tl(t1, t0, 8);
tcg_gen_andi_tl(t1, t1, 0x00FF00FF);
tcg_gen_shli_tl(t0, t0, 8);
tcg_gen_andi_tl(t0, t0, ~0x00FF00FF);
tcg_gen_or_tl(t0, t0, t1);
tcg_temp_free(t1);
tcg_gen_ext32s_tl(cpu_gpr[rd], t0);
}
break;
case OPC_SEB:
tcg_gen_ext8s_tl(cpu_gpr[rd], t0);
break;
case OPC_SEH:
tcg_gen_ext16s_tl(cpu_gpr[rd], t0);
break;
#if defined(TARGET_MIPS64)
case OPC_DSBH:
{
TCGv t1 = tcg_temp_new();
tcg_gen_shri_tl(t1, t0, 8);
tcg_gen_andi_tl(t1, t1, 0x00FF00FF00FF00FFULL);
tcg_gen_shli_tl(t0, t0, 8);
tcg_gen_andi_tl(t0, t0, ~0x00FF00FF00FF00FFULL);
tcg_gen_or_tl(cpu_gpr[rd], t0, t1);
tcg_temp_free(t1);
}
break;
case OPC_DSHD:
{
TCGv t1 = tcg_temp_new();
tcg_gen_shri_tl(t1, t0, 16);
tcg_gen_andi_tl(t1, t1, 0x0000FFFF0000FFFFULL);
tcg_gen_shli_tl(t0, t0, 16);
tcg_gen_andi_tl(t0, t0, ~0x0000FFFF0000FFFFULL);
tcg_gen_or_tl(t0, t0, t1);
tcg_gen_shri_tl(t1, t0, 32);
tcg_gen_shli_tl(t0, t0, 32);
tcg_gen_or_tl(cpu_gpr[rd], t0, t1);
tcg_temp_free(t1);
}
break;
#endif
default:
MIPS_INVAL("bsfhl");
generate_exception(ctx, EXCP_RI);
tcg_temp_free(t0);
return;
}
tcg_temp_free(t0);
}
#ifndef CONFIG_USER_ONLY
/* CP0 (MMU and control) */
static inline void gen_mfc0_load32 (TCGv arg, target_ulong off)
{
TCGv_i32 t0 = tcg_temp_new_i32();
tcg_gen_ld_i32(t0, cpu_env, off);
tcg_gen_ext_i32_tl(arg, t0);
tcg_temp_free_i32(t0);
}
static inline void gen_mfc0_load64 (TCGv arg, target_ulong off)
{
tcg_gen_ld_tl(arg, cpu_env, off);
tcg_gen_ext32s_tl(arg, arg);
}
static inline void gen_mtc0_store32 (TCGv arg, target_ulong off)
{
TCGv_i32 t0 = tcg_temp_new_i32();
tcg_gen_trunc_tl_i32(t0, arg);
tcg_gen_st_i32(t0, cpu_env, off);
tcg_temp_free_i32(t0);
}
static inline void gen_mtc0_store64 (TCGv arg, target_ulong off)
{
tcg_gen_ext32s_tl(arg, arg);
tcg_gen_st_tl(arg, cpu_env, off);
}
static void gen_mfc0 (CPUState *env, DisasContext *ctx, TCGv arg, int reg, int sel)
{
const char *rn = "invalid";
if (sel != 0)
check_insn(env, ctx, ISA_MIPS32);
switch (reg) {
case 0:
switch (sel) {
case 0:
gen_mfc0_load32(arg, offsetof(CPUState, CP0_Index));
rn = "Index";
break;
case 1:
check_insn(env, ctx, ASE_MT);
gen_helper_mfc0_mvpcontrol(arg);
rn = "MVPControl";
break;
case 2:
check_insn(env, ctx, ASE_MT);
gen_helper_mfc0_mvpconf0(arg);
rn = "MVPConf0";
break;
case 3:
check_insn(env, ctx, ASE_MT);
gen_helper_mfc0_mvpconf1(arg);
rn = "MVPConf1";
break;
default:
goto die;
}
break;
case 1:
switch (sel) {
case 0:
gen_helper_mfc0_random(arg);
rn = "Random";
break;
case 1:
check_insn(env, ctx, ASE_MT);
gen_mfc0_load32(arg, offsetof(CPUState, CP0_VPEControl));
rn = "VPEControl";
break;
case 2:
check_insn(env, ctx, ASE_MT);
gen_mfc0_load32(arg, offsetof(CPUState, CP0_VPEConf0));
rn = "VPEConf0";
break;
case 3:
check_insn(env, ctx, ASE_MT);
gen_mfc0_load32(arg, offsetof(CPUState, CP0_VPEConf1));
rn = "VPEConf1";
break;
case 4:
check_insn(env, ctx, ASE_MT);
gen_mfc0_load64(arg, offsetof(CPUState, CP0_YQMask));
rn = "YQMask";
break;
case 5:
check_insn(env, ctx, ASE_MT);
gen_mfc0_load64(arg, offsetof(CPUState, CP0_VPESchedule));
rn = "VPESchedule";
break;
case 6:
check_insn(env, ctx, ASE_MT);
gen_mfc0_load64(arg, offsetof(CPUState, CP0_VPEScheFBack));
rn = "VPEScheFBack";
break;
case 7:
check_insn(env, ctx, ASE_MT);
gen_mfc0_load32(arg, offsetof(CPUState, CP0_VPEOpt));
rn = "VPEOpt";
break;
default:
goto die;
}
break;
case 2:
switch (sel) {
case 0:
tcg_gen_ld_tl(arg, cpu_env, offsetof(CPUState, CP0_EntryLo0));
tcg_gen_ext32s_tl(arg, arg);
rn = "EntryLo0";
break;
case 1:
check_insn(env, ctx, ASE_MT);
gen_helper_mfc0_tcstatus(arg);
rn = "TCStatus";
break;
case 2:
check_insn(env, ctx, ASE_MT);
gen_helper_mfc0_tcbind(arg);
rn = "TCBind";
break;
case 3:
check_insn(env, ctx, ASE_MT);
gen_helper_mfc0_tcrestart(arg);
rn = "TCRestart";
break;
case 4:
check_insn(env, ctx, ASE_MT);
gen_helper_mfc0_tchalt(arg);
rn = "TCHalt";
break;
case 5:
check_insn(env, ctx, ASE_MT);
gen_helper_mfc0_tccontext(arg);
rn = "TCContext";
break;
case 6:
check_insn(env, ctx, ASE_MT);
gen_helper_mfc0_tcschedule(arg);
rn = "TCSchedule";
break;
case 7:
check_insn(env, ctx, ASE_MT);
gen_helper_mfc0_tcschefback(arg);
rn = "TCScheFBack";
break;
default:
goto die;
}
break;
case 3:
switch (sel) {
case 0:
tcg_gen_ld_tl(arg, cpu_env, offsetof(CPUState, CP0_EntryLo1));
tcg_gen_ext32s_tl(arg, arg);
rn = "EntryLo1";
break;
default:
goto die;
}
break;
case 4:
switch (sel) {
case 0:
tcg_gen_ld_tl(arg, cpu_env, offsetof(CPUState, CP0_Context));
tcg_gen_ext32s_tl(arg, arg);
rn = "Context";
break;
case 1:
// gen_helper_mfc0_contextconfig(arg); /* SmartMIPS ASE */
rn = "ContextConfig";
// break;
default:
goto die;
}
break;
case 5:
switch (sel) {
case 0:
gen_mfc0_load32(arg, offsetof(CPUState, CP0_PageMask));
rn = "PageMask";
break;
case 1:
check_insn(env, ctx, ISA_MIPS32R2);
gen_mfc0_load32(arg, offsetof(CPUState, CP0_PageGrain));
rn = "PageGrain";
break;
default:
goto die;
}
break;
case 6:
switch (sel) {
case 0:
gen_mfc0_load32(arg, offsetof(CPUState, CP0_Wired));
rn = "Wired";
break;
case 1:
check_insn(env, ctx, ISA_MIPS32R2);
gen_mfc0_load32(arg, offsetof(CPUState, CP0_SRSConf0));
rn = "SRSConf0";
break;
case 2:
check_insn(env, ctx, ISA_MIPS32R2);
gen_mfc0_load32(arg, offsetof(CPUState, CP0_SRSConf1));
rn = "SRSConf1";
break;
case 3:
check_insn(env, ctx, ISA_MIPS32R2);
gen_mfc0_load32(arg, offsetof(CPUState, CP0_SRSConf2));
rn = "SRSConf2";
break;
case 4:
check_insn(env, ctx, ISA_MIPS32R2);
gen_mfc0_load32(arg, offsetof(CPUState, CP0_SRSConf3));
rn = "SRSConf3";
break;
case 5:
check_insn(env, ctx, ISA_MIPS32R2);
gen_mfc0_load32(arg, offsetof(CPUState, CP0_SRSConf4));
rn = "SRSConf4";
break;
default:
goto die;
}
break;
case 7:
switch (sel) {
case 0:
check_insn(env, ctx, ISA_MIPS32R2);
gen_mfc0_load32(arg, offsetof(CPUState, CP0_HWREna));
rn = "HWREna";
break;
default:
goto die;
}
break;
case 8:
switch (sel) {
case 0:
tcg_gen_ld_tl(arg, cpu_env, offsetof(CPUState, CP0_BadVAddr));
tcg_gen_ext32s_tl(arg, arg);
rn = "BadVAddr";
break;
default:
goto die;
}
break;
case 9:
switch (sel) {
case 0:
/* Mark as an IO operation because we read the time. */
if (use_icount)
gen_io_start();
gen_helper_mfc0_count(arg);
if (use_icount) {
gen_io_end();
ctx->bstate = BS_STOP;
}
rn = "Count";
break;
/* 6,7 are implementation dependent */
default:
goto die;
}
break;
case 10:
switch (sel) {
case 0:
tcg_gen_ld_tl(arg, cpu_env, offsetof(CPUState, CP0_EntryHi));
tcg_gen_ext32s_tl(arg, arg);
rn = "EntryHi";
break;
default:
goto die;
}
break;
case 11:
switch (sel) {
case 0:
gen_mfc0_load32(arg, offsetof(CPUState, CP0_Compare));
rn = "Compare";
break;
/* 6,7 are implementation dependent */
default:
goto die;
}
break;
case 12:
switch (sel) {
case 0:
gen_mfc0_load32(arg, offsetof(CPUState, CP0_Status));
rn = "Status";
break;
case 1:
check_insn(env, ctx, ISA_MIPS32R2);
gen_mfc0_load32(arg, offsetof(CPUState, CP0_IntCtl));
rn = "IntCtl";
break;
case 2:
check_insn(env, ctx, ISA_MIPS32R2);
gen_mfc0_load32(arg, offsetof(CPUState, CP0_SRSCtl));
rn = "SRSCtl";
break;
case 3:
check_insn(env, ctx, ISA_MIPS32R2);
gen_mfc0_load32(arg, offsetof(CPUState, CP0_SRSMap));
rn = "SRSMap";
break;
default:
goto die;
}
break;
case 13:
switch (sel) {
case 0:
gen_mfc0_load32(arg, offsetof(CPUState, CP0_Cause));
rn = "Cause";
break;
default:
goto die;
}
break;
case 14:
switch (sel) {
case 0:
tcg_gen_ld_tl(arg, cpu_env, offsetof(CPUState, CP0_EPC));
tcg_gen_ext32s_tl(arg, arg);
rn = "EPC";
break;
default:
goto die;
}
break;
case 15:
switch (sel) {
case 0:
gen_mfc0_load32(arg, offsetof(CPUState, CP0_PRid));
rn = "PRid";
break;
case 1:
check_insn(env, ctx, ISA_MIPS32R2);
gen_mfc0_load32(arg, offsetof(CPUState, CP0_EBase));
rn = "EBase";
break;
default:
goto die;
}
break;
case 16:
switch (sel) {
case 0:
gen_mfc0_load32(arg, offsetof(CPUState, CP0_Config0));
rn = "Config";
break;
case 1:
gen_mfc0_load32(arg, offsetof(CPUState, CP0_Config1));
rn = "Config1";
break;
case 2:
gen_mfc0_load32(arg, offsetof(CPUState, CP0_Config2));
rn = "Config2";
break;
case 3:
gen_mfc0_load32(arg, offsetof(CPUState, CP0_Config3));
rn = "Config3";
break;
/* 4,5 are reserved */
/* 6,7 are implementation dependent */
case 6:
gen_mfc0_load32(arg, offsetof(CPUState, CP0_Config6));
rn = "Config6";
break;
case 7:
gen_mfc0_load32(arg, offsetof(CPUState, CP0_Config7));
rn = "Config7";
break;
default:
goto die;
}
break;
case 17:
switch (sel) {
case 0:
gen_helper_mfc0_lladdr(arg);
rn = "LLAddr";
break;
default:
goto die;
}
break;
case 18:
switch (sel) {
case 0 ... 7:
gen_helper_1i(mfc0_watchlo, arg, sel);
rn = "WatchLo";
break;
default:
goto die;
}
break;
case 19:
switch (sel) {
case 0 ...7:
gen_helper_1i(mfc0_watchhi, arg, sel);
rn = "WatchHi";
break;
default:
goto die;
}
break;
case 20:
switch (sel) {
case 0:
#if defined(TARGET_MIPS64)
check_insn(env, ctx, ISA_MIPS3);
tcg_gen_ld_tl(arg, cpu_env, offsetof(CPUState, CP0_XContext));
tcg_gen_ext32s_tl(arg, arg);
rn = "XContext";
break;
#endif
default:
goto die;
}
break;
case 21:
/* Officially reserved, but sel 0 is used for R1x000 framemask */
switch (sel) {
case 0:
gen_mfc0_load32(arg, offsetof(CPUState, CP0_Framemask));
rn = "Framemask";
break;
default:
goto die;
}
break;
case 22:
tcg_gen_movi_tl(arg, 0); /* unimplemented */
rn = "'Diagnostic"; /* implementation dependent */
break;
case 23:
switch (sel) {
case 0:
gen_helper_mfc0_debug(arg); /* EJTAG support */
rn = "Debug";
break;
case 1:
// gen_helper_mfc0_tracecontrol(arg); /* PDtrace support */
rn = "TraceControl";
// break;
case 2:
// gen_helper_mfc0_tracecontrol2(arg); /* PDtrace support */
rn = "TraceControl2";
// break;
case 3:
// gen_helper_mfc0_usertracedata(arg); /* PDtrace support */
rn = "UserTraceData";
// break;
case 4:
// gen_helper_mfc0_tracebpc(arg); /* PDtrace support */
rn = "TraceBPC";
// break;
default:
goto die;
}
break;
case 24:
switch (sel) {
case 0:
/* EJTAG support */
tcg_gen_ld_tl(arg, cpu_env, offsetof(CPUState, CP0_DEPC));
tcg_gen_ext32s_tl(arg, arg);
rn = "DEPC";
break;
default:
goto die;
}
break;
case 25:
switch (sel) {
case 0:
gen_mfc0_load32(arg, offsetof(CPUState, CP0_Performance0));
rn = "Performance0";
break;
case 1:
// gen_helper_mfc0_performance1(arg);
rn = "Performance1";
// break;
case 2:
// gen_helper_mfc0_performance2(arg);
rn = "Performance2";
// break;
case 3:
// gen_helper_mfc0_performance3(arg);
rn = "Performance3";
// break;
case 4:
// gen_helper_mfc0_performance4(arg);
rn = "Performance4";
// break;
case 5:
// gen_helper_mfc0_performance5(arg);
rn = "Performance5";
// break;
case 6:
// gen_helper_mfc0_performance6(arg);
rn = "Performance6";
// break;
case 7:
// gen_helper_mfc0_performance7(arg);
rn = "Performance7";
// break;
default:
goto die;
}
break;
case 26:
tcg_gen_movi_tl(arg, 0); /* unimplemented */
rn = "ECC";
break;
case 27:
switch (sel) {
case 0 ... 3:
tcg_gen_movi_tl(arg, 0); /* unimplemented */
rn = "CacheErr";
break;
default:
goto die;
}
break;
case 28:
switch (sel) {
case 0:
case 2:
case 4:
case 6:
gen_mfc0_load32(arg, offsetof(CPUState, CP0_TagLo));
rn = "TagLo";
break;
case 1:
case 3:
case 5:
case 7:
gen_mfc0_load32(arg, offsetof(CPUState, CP0_DataLo));
rn = "DataLo";
break;
default:
goto die;
}
break;
case 29:
switch (sel) {
case 0:
case 2:
case 4:
case 6:
gen_mfc0_load32(arg, offsetof(CPUState, CP0_TagHi));
rn = "TagHi";
break;
case 1:
case 3:
case 5:
case 7:
gen_mfc0_load32(arg, offsetof(CPUState, CP0_DataHi));
rn = "DataHi";
break;
default:
goto die;
}
break;
case 30:
switch (sel) {
case 0:
tcg_gen_ld_tl(arg, cpu_env, offsetof(CPUState, CP0_ErrorEPC));
tcg_gen_ext32s_tl(arg, arg);
rn = "ErrorEPC";
break;
default:
goto die;
}
break;
case 31:
switch (sel) {
case 0:
/* EJTAG support */
gen_mfc0_load32(arg, offsetof(CPUState, CP0_DESAVE));
rn = "DESAVE";
break;
default:
goto die;
}
break;
default:
goto die;
}
LOG_DISAS("mfc0 %s (reg %d sel %d)\n", rn, reg, sel);
return;
die:
LOG_DISAS("mfc0 %s (reg %d sel %d)\n", rn, reg, sel);
generate_exception(ctx, EXCP_RI);
}
static void gen_mtc0 (CPUState *env, DisasContext *ctx, TCGv arg, int reg, int sel)
{
const char *rn = "invalid";
if (sel != 0)
check_insn(env, ctx, ISA_MIPS32);
if (use_icount)
gen_io_start();
switch (reg) {
case 0:
switch (sel) {
case 0:
gen_helper_mtc0_index(arg);
rn = "Index";
break;
case 1:
check_insn(env, ctx, ASE_MT);
gen_helper_mtc0_mvpcontrol(arg);
rn = "MVPControl";
break;
case 2:
check_insn(env, ctx, ASE_MT);
/* ignored */
rn = "MVPConf0";
break;
case 3:
check_insn(env, ctx, ASE_MT);
/* ignored */
rn = "MVPConf1";
break;
default:
goto die;
}
break;
case 1:
switch (sel) {
case 0:
/* ignored */
rn = "Random";
break;
case 1:
check_insn(env, ctx, ASE_MT);
gen_helper_mtc0_vpecontrol(arg);
rn = "VPEControl";
break;
case 2:
check_insn(env, ctx, ASE_MT);
gen_helper_mtc0_vpeconf0(arg);
rn = "VPEConf0";
break;
case 3:
check_insn(env, ctx, ASE_MT);
gen_helper_mtc0_vpeconf1(arg);
rn = "VPEConf1";
break;
case 4:
check_insn(env, ctx, ASE_MT);
gen_helper_mtc0_yqmask(arg);
rn = "YQMask";
break;
case 5:
check_insn(env, ctx, ASE_MT);
gen_mtc0_store64(arg, offsetof(CPUState, CP0_VPESchedule));
rn = "VPESchedule";
break;
case 6:
check_insn(env, ctx, ASE_MT);
gen_mtc0_store64(arg, offsetof(CPUState, CP0_VPEScheFBack));
rn = "VPEScheFBack";
break;
case 7:
check_insn(env, ctx, ASE_MT);
gen_helper_mtc0_vpeopt(arg);
rn = "VPEOpt";
break;
default:
goto die;
}
break;
case 2:
switch (sel) {
case 0:
gen_helper_mtc0_entrylo0(arg);
rn = "EntryLo0";
break;
case 1:
check_insn(env, ctx, ASE_MT);
gen_helper_mtc0_tcstatus(arg);
rn = "TCStatus";
break;
case 2:
check_insn(env, ctx, ASE_MT);
gen_helper_mtc0_tcbind(arg);
rn = "TCBind";
break;
case 3:
check_insn(env, ctx, ASE_MT);
gen_helper_mtc0_tcrestart(arg);
rn = "TCRestart";
break;
case 4:
check_insn(env, ctx, ASE_MT);
gen_helper_mtc0_tchalt(arg);
rn = "TCHalt";
break;
case 5:
check_insn(env, ctx, ASE_MT);
gen_helper_mtc0_tccontext(arg);
rn = "TCContext";
break;
case 6:
check_insn(env, ctx, ASE_MT);
gen_helper_mtc0_tcschedule(arg);
rn = "TCSchedule";
break;
case 7:
check_insn(env, ctx, ASE_MT);
gen_helper_mtc0_tcschefback(arg);
rn = "TCScheFBack";
break;
default:
goto die;
}
break;
case 3:
switch (sel) {
case 0:
gen_helper_mtc0_entrylo1(arg);
rn = "EntryLo1";
break;
default:
goto die;
}
break;
case 4:
switch (sel) {
case 0:
gen_helper_mtc0_context(arg);
rn = "Context";
break;
case 1:
// gen_helper_mtc0_contextconfig(arg); /* SmartMIPS ASE */
rn = "ContextConfig";
// break;
default:
goto die;
}
break;
case 5:
switch (sel) {
case 0:
gen_helper_mtc0_pagemask(arg);
rn = "PageMask";
break;
case 1:
check_insn(env, ctx, ISA_MIPS32R2);
gen_helper_mtc0_pagegrain(arg);
rn = "PageGrain";
break;
default:
goto die;
}
break;
case 6:
switch (sel) {
case 0:
gen_helper_mtc0_wired(arg);
rn = "Wired";
break;
case 1:
check_insn(env, ctx, ISA_MIPS32R2);
gen_helper_mtc0_srsconf0(arg);
rn = "SRSConf0";
break;
case 2:
check_insn(env, ctx, ISA_MIPS32R2);
gen_helper_mtc0_srsconf1(arg);
rn = "SRSConf1";
break;
case 3:
check_insn(env, ctx, ISA_MIPS32R2);
gen_helper_mtc0_srsconf2(arg);
rn = "SRSConf2";
break;
case 4:
check_insn(env, ctx, ISA_MIPS32R2);
gen_helper_mtc0_srsconf3(arg);
rn = "SRSConf3";
break;
case 5:
check_insn(env, ctx, ISA_MIPS32R2);
gen_helper_mtc0_srsconf4(arg);
rn = "SRSConf4";
break;
default:
goto die;
}
break;
case 7:
switch (sel) {
case 0:
check_insn(env, ctx, ISA_MIPS32R2);
gen_helper_mtc0_hwrena(arg);
rn = "HWREna";
break;
default:
goto die;
}
break;
case 8:
/* ignored */
rn = "BadVAddr";
break;
case 9:
switch (sel) {
case 0:
gen_helper_mtc0_count(arg);
rn = "Count";
break;
/* 6,7 are implementation dependent */
default:
goto die;
}
break;
case 10:
switch (sel) {
case 0:
gen_helper_mtc0_entryhi(arg);
rn = "EntryHi";
break;
default:
goto die;
}
break;
case 11:
switch (sel) {
case 0:
gen_helper_mtc0_compare(arg);
rn = "Compare";
break;
/* 6,7 are implementation dependent */
default:
goto die;
}
break;
case 12:
switch (sel) {
case 0:
save_cpu_state(ctx, 1);
gen_helper_mtc0_status(arg);
/* BS_STOP isn't good enough here, hflags may have changed. */
gen_save_pc(ctx->pc + 4);
ctx->bstate = BS_EXCP;
rn = "Status";
break;
case 1:
check_insn(env, ctx, ISA_MIPS32R2);
gen_helper_mtc0_intctl(arg);
/* Stop translation as we may have switched the execution mode */
ctx->bstate = BS_STOP;
rn = "IntCtl";
break;
case 2:
check_insn(env, ctx, ISA_MIPS32R2);
gen_helper_mtc0_srsctl(arg);
/* Stop translation as we may have switched the execution mode */
ctx->bstate = BS_STOP;
rn = "SRSCtl";
break;
case 3:
check_insn(env, ctx, ISA_MIPS32R2);
gen_mtc0_store32(arg, offsetof(CPUState, CP0_SRSMap));
/* Stop translation as we may have switched the execution mode */
ctx->bstate = BS_STOP;
rn = "SRSMap";
break;
default:
goto die;
}
break;
case 13:
switch (sel) {
case 0:
save_cpu_state(ctx, 1);
gen_helper_mtc0_cause(arg);
rn = "Cause";
break;
default:
goto die;
}
break;
case 14:
switch (sel) {
case 0:
gen_mtc0_store64(arg, offsetof(CPUState, CP0_EPC));
rn = "EPC";
break;
default:
goto die;
}
break;
case 15:
switch (sel) {
case 0:
/* ignored */
rn = "PRid";
break;
case 1:
check_insn(env, ctx, ISA_MIPS32R2);
gen_helper_mtc0_ebase(arg);
rn = "EBase";
break;
default:
goto die;
}
break;
case 16:
switch (sel) {
case 0:
gen_helper_mtc0_config0(arg);
rn = "Config";
/* Stop translation as we may have switched the execution mode */
ctx->bstate = BS_STOP;
break;
case 1:
/* ignored, read only */
rn = "Config1";
break;
case 2:
gen_helper_mtc0_config2(arg);
rn = "Config2";
/* Stop translation as we may have switched the execution mode */
ctx->bstate = BS_STOP;
break;
case 3:
/* ignored, read only */
rn = "Config3";
break;
/* 4,5 are reserved */
/* 6,7 are implementation dependent */
case 6:
/* ignored */
rn = "Config6";
break;
case 7:
/* ignored */
rn = "Config7";
break;
default:
rn = "Invalid config selector";
goto die;
}
break;
case 17:
switch (sel) {
case 0:
gen_helper_mtc0_lladdr(arg);
rn = "LLAddr";
break;
default:
goto die;
}
break;
case 18:
switch (sel) {
case 0 ... 7:
gen_helper_1i(mtc0_watchlo, arg, sel);
rn = "WatchLo";
break;
default:
goto die;
}
break;
case 19:
switch (sel) {
case 0 ... 7:
gen_helper_1i(mtc0_watchhi, arg, sel);
rn = "WatchHi";
break;
default:
goto die;
}
break;
case 20:
switch (sel) {
case 0:
#if defined(TARGET_MIPS64)
check_insn(env, ctx, ISA_MIPS3);
gen_helper_mtc0_xcontext(arg);
rn = "XContext";
break;
#endif
default:
goto die;
}
break;
case 21:
/* Officially reserved, but sel 0 is used for R1x000 framemask */
switch (sel) {
case 0:
gen_helper_mtc0_framemask(arg);
rn = "Framemask";
break;
default:
goto die;
}
break;
case 22:
/* ignored */
rn = "Diagnostic"; /* implementation dependent */
break;
case 23:
switch (sel) {
case 0:
gen_helper_mtc0_debug(arg); /* EJTAG support */
/* BS_STOP isn't good enough here, hflags may have changed. */
gen_save_pc(ctx->pc + 4);
ctx->bstate = BS_EXCP;
rn = "Debug";
break;
case 1:
// gen_helper_mtc0_tracecontrol(arg); /* PDtrace support */
rn = "TraceControl";
/* Stop translation as we may have switched the execution mode */
ctx->bstate = BS_STOP;
// break;
case 2:
// gen_helper_mtc0_tracecontrol2(arg); /* PDtrace support */
rn = "TraceControl2";
/* Stop translation as we may have switched the execution mode */
ctx->bstate = BS_STOP;
// break;
case 3:
/* Stop translation as we may have switched the execution mode */
ctx->bstate = BS_STOP;
// gen_helper_mtc0_usertracedata(arg); /* PDtrace support */
rn = "UserTraceData";
/* Stop translation as we may have switched the execution mode */
ctx->bstate = BS_STOP;
// break;
case 4:
// gen_helper_mtc0_tracebpc(arg); /* PDtrace support */
/* Stop translation as we may have switched the execution mode */
ctx->bstate = BS_STOP;
rn = "TraceBPC";
// break;
default:
goto die;
}
break;
case 24:
switch (sel) {
case 0:
/* EJTAG support */
gen_mtc0_store64(arg, offsetof(CPUState, CP0_DEPC));
rn = "DEPC";
break;
default:
goto die;
}
break;
case 25:
switch (sel) {
case 0:
gen_helper_mtc0_performance0(arg);
rn = "Performance0";
break;
case 1:
// gen_helper_mtc0_performance1(arg);
rn = "Performance1";
// break;
case 2:
// gen_helper_mtc0_performance2(arg);
rn = "Performance2";
// break;
case 3:
// gen_helper_mtc0_performance3(arg);
rn = "Performance3";
// break;
case 4:
// gen_helper_mtc0_performance4(arg);
rn = "Performance4";
// break;
case 5:
// gen_helper_mtc0_performance5(arg);
rn = "Performance5";
// break;
case 6:
// gen_helper_mtc0_performance6(arg);
rn = "Performance6";
// break;
case 7:
// gen_helper_mtc0_performance7(arg);
rn = "Performance7";
// break;
default:
goto die;
}
break;
case 26:
/* ignored */
rn = "ECC";
break;
case 27:
switch (sel) {
case 0 ... 3:
/* ignored */
rn = "CacheErr";
break;
default:
goto die;
}
break;
case 28:
switch (sel) {
case 0:
case 2:
case 4:
case 6:
gen_helper_mtc0_taglo(arg);
rn = "TagLo";
break;
case 1:
case 3:
case 5:
case 7:
gen_helper_mtc0_datalo(arg);
rn = "DataLo";
break;
default:
goto die;
}
break;
case 29:
switch (sel) {
case 0:
case 2:
case 4:
case 6:
gen_helper_mtc0_taghi(arg);
rn = "TagHi";
break;
case 1:
case 3:
case 5:
case 7:
gen_helper_mtc0_datahi(arg);
rn = "DataHi";
break;
default:
rn = "invalid sel";
goto die;
}
break;
case 30:
switch (sel) {
case 0:
gen_mtc0_store64(arg, offsetof(CPUState, CP0_ErrorEPC));
rn = "ErrorEPC";
break;
default:
goto die;
}
break;
case 31:
switch (sel) {
case 0:
/* EJTAG support */
gen_mtc0_store32(arg, offsetof(CPUState, CP0_DESAVE));
rn = "DESAVE";
break;
default:
goto die;
}
/* Stop translation as we may have switched the execution mode */
ctx->bstate = BS_STOP;
break;
default:
goto die;
}
LOG_DISAS("mtc0 %s (reg %d sel %d)\n", rn, reg, sel);
/* For simplicity assume that all writes can cause interrupts. */
if (use_icount) {
gen_io_end();
ctx->bstate = BS_STOP;
}
return;
die:
LOG_DISAS("mtc0 %s (reg %d sel %d)\n", rn, reg, sel);
generate_exception(ctx, EXCP_RI);
}
#if defined(TARGET_MIPS64)
static void gen_dmfc0 (CPUState *env, DisasContext *ctx, TCGv arg, int reg, int sel)
{
const char *rn = "invalid";
if (sel != 0)
check_insn(env, ctx, ISA_MIPS64);
switch (reg) {
case 0:
switch (sel) {
case 0:
gen_mfc0_load32(arg, offsetof(CPUState, CP0_Index));
rn = "Index";
break;
case 1:
check_insn(env, ctx, ASE_MT);
gen_helper_mfc0_mvpcontrol(arg);
rn = "MVPControl";
break;
case 2:
check_insn(env, ctx, ASE_MT);
gen_helper_mfc0_mvpconf0(arg);
rn = "MVPConf0";
break;
case 3:
check_insn(env, ctx, ASE_MT);
gen_helper_mfc0_mvpconf1(arg);
rn = "MVPConf1";
break;
default:
goto die;
}
break;
case 1:
switch (sel) {
case 0:
gen_helper_mfc0_random(arg);
rn = "Random";
break;
case 1:
check_insn(env, ctx, ASE_MT);
gen_mfc0_load32(arg, offsetof(CPUState, CP0_VPEControl));
rn = "VPEControl";
break;
case 2:
check_insn(env, ctx, ASE_MT);
gen_mfc0_load32(arg, offsetof(CPUState, CP0_VPEConf0));
rn = "VPEConf0";
break;
case 3:
check_insn(env, ctx, ASE_MT);
gen_mfc0_load32(arg, offsetof(CPUState, CP0_VPEConf1));
rn = "VPEConf1";
break;
case 4:
check_insn(env, ctx, ASE_MT);
tcg_gen_ld_tl(arg, cpu_env, offsetof(CPUState, CP0_YQMask));
rn = "YQMask";
break;
case 5:
check_insn(env, ctx, ASE_MT);
tcg_gen_ld_tl(arg, cpu_env, offsetof(CPUState, CP0_VPESchedule));
rn = "VPESchedule";
break;
case 6:
check_insn(env, ctx, ASE_MT);
tcg_gen_ld_tl(arg, cpu_env, offsetof(CPUState, CP0_VPEScheFBack));
rn = "VPEScheFBack";
break;
case 7:
check_insn(env, ctx, ASE_MT);
gen_mfc0_load32(arg, offsetof(CPUState, CP0_VPEOpt));
rn = "VPEOpt";
break;
default:
goto die;
}
break;
case 2:
switch (sel) {
case 0:
tcg_gen_ld_tl(arg, cpu_env, offsetof(CPUState, CP0_EntryLo0));
rn = "EntryLo0";
break;
case 1:
check_insn(env, ctx, ASE_MT);
gen_helper_mfc0_tcstatus(arg);
rn = "TCStatus";
break;
case 2:
check_insn(env, ctx, ASE_MT);
gen_helper_mfc0_tcbind(arg);
rn = "TCBind";
break;
case 3:
check_insn(env, ctx, ASE_MT);
gen_helper_dmfc0_tcrestart(arg);
rn = "TCRestart";
break;
case 4:
check_insn(env, ctx, ASE_MT);
gen_helper_dmfc0_tchalt(arg);
rn = "TCHalt";
break;
case 5:
check_insn(env, ctx, ASE_MT);
gen_helper_dmfc0_tccontext(arg);
rn = "TCContext";
break;
case 6:
check_insn(env, ctx, ASE_MT);
gen_helper_dmfc0_tcschedule(arg);
rn = "TCSchedule";
break;
case 7:
check_insn(env, ctx, ASE_MT);
gen_helper_dmfc0_tcschefback(arg);
rn = "TCScheFBack";
break;
default:
goto die;
}
break;
case 3:
switch (sel) {
case 0:
tcg_gen_ld_tl(arg, cpu_env, offsetof(CPUState, CP0_EntryLo1));
rn = "EntryLo1";
break;
default:
goto die;
}
break;
case 4:
switch (sel) {
case 0:
tcg_gen_ld_tl(arg, cpu_env, offsetof(CPUState, CP0_Context));
rn = "Context";
break;
case 1:
// gen_helper_dmfc0_contextconfig(arg); /* SmartMIPS ASE */
rn = "ContextConfig";
// break;
default:
goto die;
}
break;
case 5:
switch (sel) {
case 0:
gen_mfc0_load32(arg, offsetof(CPUState, CP0_PageMask));
rn = "PageMask";
break;
case 1:
check_insn(env, ctx, ISA_MIPS32R2);
gen_mfc0_load32(arg, offsetof(CPUState, CP0_PageGrain));
rn = "PageGrain";
break;
default:
goto die;
}
break;
case 6:
switch (sel) {
case 0:
gen_mfc0_load32(arg, offsetof(CPUState, CP0_Wired));
rn = "Wired";
break;
case 1:
check_insn(env, ctx, ISA_MIPS32R2);
gen_mfc0_load32(arg, offsetof(CPUState, CP0_SRSConf0));
rn = "SRSConf0";
break;
case 2:
check_insn(env, ctx, ISA_MIPS32R2);
gen_mfc0_load32(arg, offsetof(CPUState, CP0_SRSConf1));
rn = "SRSConf1";
break;
case 3:
check_insn(env, ctx, ISA_MIPS32R2);
gen_mfc0_load32(arg, offsetof(CPUState, CP0_SRSConf2));
rn = "SRSConf2";
break;
case 4:
check_insn(env, ctx, ISA_MIPS32R2);
gen_mfc0_load32(arg, offsetof(CPUState, CP0_SRSConf3));
rn = "SRSConf3";
break;
case 5:
check_insn(env, ctx, ISA_MIPS32R2);
gen_mfc0_load32(arg, offsetof(CPUState, CP0_SRSConf4));
rn = "SRSConf4";
break;
default:
goto die;
}
break;
case 7:
switch (sel) {
case 0:
check_insn(env, ctx, ISA_MIPS32R2);
gen_mfc0_load32(arg, offsetof(CPUState, CP0_HWREna));
rn = "HWREna";
break;
default:
goto die;
}
break;
case 8:
switch (sel) {
case 0:
tcg_gen_ld_tl(arg, cpu_env, offsetof(CPUState, CP0_BadVAddr));
rn = "BadVAddr";
break;
default:
goto die;
}
break;
case 9:
switch (sel) {
case 0:
/* Mark as an IO operation because we read the time. */
if (use_icount)
gen_io_start();
gen_helper_mfc0_count(arg);
if (use_icount) {
gen_io_end();
ctx->bstate = BS_STOP;
}
rn = "Count";
break;
/* 6,7 are implementation dependent */
default:
goto die;
}
break;
case 10:
switch (sel) {
case 0:
tcg_gen_ld_tl(arg, cpu_env, offsetof(CPUState, CP0_EntryHi));
rn = "EntryHi";
break;
default:
goto die;
}
break;
case 11:
switch (sel) {
case 0:
gen_mfc0_load32(arg, offsetof(CPUState, CP0_Compare));
rn = "Compare";
break;
/* 6,7 are implementation dependent */
default:
goto die;
}
break;
case 12:
switch (sel) {
case 0:
gen_mfc0_load32(arg, offsetof(CPUState, CP0_Status));
rn = "Status";
break;
case 1:
check_insn(env, ctx, ISA_MIPS32R2);
gen_mfc0_load32(arg, offsetof(CPUState, CP0_IntCtl));
rn = "IntCtl";
break;
case 2:
check_insn(env, ctx, ISA_MIPS32R2);
gen_mfc0_load32(arg, offsetof(CPUState, CP0_SRSCtl));
rn = "SRSCtl";
break;
case 3:
check_insn(env, ctx, ISA_MIPS32R2);
gen_mfc0_load32(arg, offsetof(CPUState, CP0_SRSMap));
rn = "SRSMap";
break;
default:
goto die;
}
break;
case 13:
switch (sel) {
case 0:
gen_mfc0_load32(arg, offsetof(CPUState, CP0_Cause));
rn = "Cause";
break;
default:
goto die;
}
break;
case 14:
switch (sel) {
case 0:
tcg_gen_ld_tl(arg, cpu_env, offsetof(CPUState, CP0_EPC));
rn = "EPC";
break;
default:
goto die;
}
break;
case 15:
switch (sel) {
case 0:
gen_mfc0_load32(arg, offsetof(CPUState, CP0_PRid));
rn = "PRid";
break;
case 1:
check_insn(env, ctx, ISA_MIPS32R2);
gen_mfc0_load32(arg, offsetof(CPUState, CP0_EBase));
rn = "EBase";
break;
default:
goto die;
}
break;
case 16:
switch (sel) {
case 0:
gen_mfc0_load32(arg, offsetof(CPUState, CP0_Config0));
rn = "Config";
break;
case 1:
gen_mfc0_load32(arg, offsetof(CPUState, CP0_Config1));
rn = "Config1";
break;
case 2:
gen_mfc0_load32(arg, offsetof(CPUState, CP0_Config2));
rn = "Config2";
break;
case 3:
gen_mfc0_load32(arg, offsetof(CPUState, CP0_Config3));
rn = "Config3";
break;
/* 6,7 are implementation dependent */
case 6:
gen_mfc0_load32(arg, offsetof(CPUState, CP0_Config6));
rn = "Config6";
break;
case 7:
gen_mfc0_load32(arg, offsetof(CPUState, CP0_Config7));
rn = "Config7";
break;
default:
goto die;
}
break;
case 17:
switch (sel) {
case 0:
gen_helper_dmfc0_lladdr(arg);
rn = "LLAddr";
break;
default:
goto die;
}
break;
case 18:
switch (sel) {
case 0 ... 7:
gen_helper_1i(dmfc0_watchlo, arg, sel);
rn = "WatchLo";
break;
default:
goto die;
}
break;
case 19:
switch (sel) {
case 0 ... 7:
gen_helper_1i(mfc0_watchhi, arg, sel);
rn = "WatchHi";
break;
default:
goto die;
}
break;
case 20:
switch (sel) {
case 0:
check_insn(env, ctx, ISA_MIPS3);
tcg_gen_ld_tl(arg, cpu_env, offsetof(CPUState, CP0_XContext));
rn = "XContext";
break;
default:
goto die;
}
break;
case 21:
/* Officially reserved, but sel 0 is used for R1x000 framemask */
switch (sel) {
case 0:
gen_mfc0_load32(arg, offsetof(CPUState, CP0_Framemask));
rn = "Framemask";
break;
default:
goto die;
}
break;
case 22:
tcg_gen_movi_tl(arg, 0); /* unimplemented */
rn = "'Diagnostic"; /* implementation dependent */
break;
case 23:
switch (sel) {
case 0:
gen_helper_mfc0_debug(arg); /* EJTAG support */
rn = "Debug";
break;
case 1:
// gen_helper_dmfc0_tracecontrol(arg); /* PDtrace support */
rn = "TraceControl";
// break;
case 2:
// gen_helper_dmfc0_tracecontrol2(arg); /* PDtrace support */
rn = "TraceControl2";
// break;
case 3:
// gen_helper_dmfc0_usertracedata(arg); /* PDtrace support */
rn = "UserTraceData";
// break;
case 4:
// gen_helper_dmfc0_tracebpc(arg); /* PDtrace support */
rn = "TraceBPC";
// break;
default:
goto die;
}
break;
case 24:
switch (sel) {
case 0:
/* EJTAG support */
tcg_gen_ld_tl(arg, cpu_env, offsetof(CPUState, CP0_DEPC));
rn = "DEPC";
break;
default:
goto die;
}
break;
case 25:
switch (sel) {
case 0:
gen_mfc0_load32(arg, offsetof(CPUState, CP0_Performance0));
rn = "Performance0";
break;
case 1:
// gen_helper_dmfc0_performance1(arg);
rn = "Performance1";
// break;
case 2:
// gen_helper_dmfc0_performance2(arg);
rn = "Performance2";
// break;
case 3:
// gen_helper_dmfc0_performance3(arg);
rn = "Performance3";
// break;
case 4:
// gen_helper_dmfc0_performance4(arg);
rn = "Performance4";
// break;
case 5:
// gen_helper_dmfc0_performance5(arg);
rn = "Performance5";
// break;
case 6:
// gen_helper_dmfc0_performance6(arg);
rn = "Performance6";
// break;
case 7:
// gen_helper_dmfc0_performance7(arg);
rn = "Performance7";
// break;
default:
goto die;
}
break;
case 26:
tcg_gen_movi_tl(arg, 0); /* unimplemented */
rn = "ECC";
break;
case 27:
switch (sel) {
/* ignored */
case 0 ... 3:
tcg_gen_movi_tl(arg, 0); /* unimplemented */
rn = "CacheErr";
break;
default:
goto die;
}
break;
case 28:
switch (sel) {
case 0:
case 2:
case 4:
case 6:
gen_mfc0_load32(arg, offsetof(CPUState, CP0_TagLo));
rn = "TagLo";
break;
case 1:
case 3:
case 5:
case 7:
gen_mfc0_load32(arg, offsetof(CPUState, CP0_DataLo));
rn = "DataLo";
break;
default:
goto die;
}
break;
case 29:
switch (sel) {
case 0:
case 2:
case 4:
case 6:
gen_mfc0_load32(arg, offsetof(CPUState, CP0_TagHi));
rn = "TagHi";
break;
case 1:
case 3:
case 5:
case 7:
gen_mfc0_load32(arg, offsetof(CPUState, CP0_DataHi));
rn = "DataHi";
break;
default:
goto die;
}
break;
case 30:
switch (sel) {
case 0:
tcg_gen_ld_tl(arg, cpu_env, offsetof(CPUState, CP0_ErrorEPC));
rn = "ErrorEPC";
break;
default:
goto die;
}
break;
case 31:
switch (sel) {
case 0:
/* EJTAG support */
gen_mfc0_load32(arg, offsetof(CPUState, CP0_DESAVE));
rn = "DESAVE";
break;
default:
goto die;
}
break;
default:
goto die;
}
LOG_DISAS("dmfc0 %s (reg %d sel %d)\n", rn, reg, sel);
return;
die:
LOG_DISAS("dmfc0 %s (reg %d sel %d)\n", rn, reg, sel);
generate_exception(ctx, EXCP_RI);
}
static void gen_dmtc0 (CPUState *env, DisasContext *ctx, TCGv arg, int reg, int sel)
{
const char *rn = "invalid";
if (sel != 0)
check_insn(env, ctx, ISA_MIPS64);
if (use_icount)
gen_io_start();
switch (reg) {
case 0:
switch (sel) {
case 0:
gen_helper_mtc0_index(arg);
rn = "Index";
break;
case 1:
check_insn(env, ctx, ASE_MT);
gen_helper_mtc0_mvpcontrol(arg);
rn = "MVPControl";
break;
case 2:
check_insn(env, ctx, ASE_MT);
/* ignored */
rn = "MVPConf0";
break;
case 3:
check_insn(env, ctx, ASE_MT);
/* ignored */
rn = "MVPConf1";
break;
default:
goto die;
}
break;
case 1:
switch (sel) {
case 0:
/* ignored */
rn = "Random";
break;
case 1:
check_insn(env, ctx, ASE_MT);
gen_helper_mtc0_vpecontrol(arg);
rn = "VPEControl";
break;
case 2:
check_insn(env, ctx, ASE_MT);
gen_helper_mtc0_vpeconf0(arg);
rn = "VPEConf0";
break;
case 3:
check_insn(env, ctx, ASE_MT);
gen_helper_mtc0_vpeconf1(arg);
rn = "VPEConf1";
break;
case 4:
check_insn(env, ctx, ASE_MT);
gen_helper_mtc0_yqmask(arg);
rn = "YQMask";
break;
case 5:
check_insn(env, ctx, ASE_MT);
tcg_gen_st_tl(arg, cpu_env, offsetof(CPUState, CP0_VPESchedule));
rn = "VPESchedule";
break;
case 6:
check_insn(env, ctx, ASE_MT);
tcg_gen_st_tl(arg, cpu_env, offsetof(CPUState, CP0_VPEScheFBack));
rn = "VPEScheFBack";
break;
case 7:
check_insn(env, ctx, ASE_MT);
gen_helper_mtc0_vpeopt(arg);
rn = "VPEOpt";
break;
default:
goto die;
}
break;
case 2:
switch (sel) {
case 0:
gen_helper_mtc0_entrylo0(arg);
rn = "EntryLo0";
break;
case 1:
check_insn(env, ctx, ASE_MT);
gen_helper_mtc0_tcstatus(arg);
rn = "TCStatus";
break;
case 2:
check_insn(env, ctx, ASE_MT);
gen_helper_mtc0_tcbind(arg);
rn = "TCBind";
break;
case 3:
check_insn(env, ctx, ASE_MT);
gen_helper_mtc0_tcrestart(arg);
rn = "TCRestart";
break;
case 4:
check_insn(env, ctx, ASE_MT);
gen_helper_mtc0_tchalt(arg);
rn = "TCHalt";
break;
case 5:
check_insn(env, ctx, ASE_MT);
gen_helper_mtc0_tccontext(arg);
rn = "TCContext";
break;
case 6:
check_insn(env, ctx, ASE_MT);
gen_helper_mtc0_tcschedule(arg);
rn = "TCSchedule";
break;
case 7:
check_insn(env, ctx, ASE_MT);
gen_helper_mtc0_tcschefback(arg);
rn = "TCScheFBack";
break;
default:
goto die;
}
break;
case 3:
switch (sel) {
case 0:
gen_helper_mtc0_entrylo1(arg);
rn = "EntryLo1";
break;
default:
goto die;
}
break;
case 4:
switch (sel) {
case 0:
gen_helper_mtc0_context(arg);
rn = "Context";
break;
case 1:
// gen_helper_mtc0_contextconfig(arg); /* SmartMIPS ASE */
rn = "ContextConfig";
// break;
default:
goto die;
}
break;
case 5:
switch (sel) {
case 0:
gen_helper_mtc0_pagemask(arg);
rn = "PageMask";
break;
case 1:
check_insn(env, ctx, ISA_MIPS32R2);
gen_helper_mtc0_pagegrain(arg);
rn = "PageGrain";
break;
default:
goto die;
}
break;
case 6:
switch (sel) {
case 0:
gen_helper_mtc0_wired(arg);
rn = "Wired";
break;
case 1:
check_insn(env, ctx, ISA_MIPS32R2);
gen_helper_mtc0_srsconf0(arg);
rn = "SRSConf0";
break;
case 2:
check_insn(env, ctx, ISA_MIPS32R2);
gen_helper_mtc0_srsconf1(arg);
rn = "SRSConf1";
break;
case 3:
check_insn(env, ctx, ISA_MIPS32R2);
gen_helper_mtc0_srsconf2(arg);
rn = "SRSConf2";
break;
case 4:
check_insn(env, ctx, ISA_MIPS32R2);
gen_helper_mtc0_srsconf3(arg);
rn = "SRSConf3";
break;
case 5:
check_insn(env, ctx, ISA_MIPS32R2);
gen_helper_mtc0_srsconf4(arg);
rn = "SRSConf4";
break;
default:
goto die;
}
break;
case 7:
switch (sel) {
case 0:
check_insn(env, ctx, ISA_MIPS32R2);
gen_helper_mtc0_hwrena(arg);
rn = "HWREna";
break;
default:
goto die;
}
break;
case 8:
/* ignored */
rn = "BadVAddr";
break;
case 9:
switch (sel) {
case 0:
gen_helper_mtc0_count(arg);
rn = "Count";
break;
/* 6,7 are implementation dependent */
default:
goto die;
}
/* Stop translation as we may have switched the execution mode */
ctx->bstate = BS_STOP;
break;
case 10:
switch (sel) {
case 0:
gen_helper_mtc0_entryhi(arg);
rn = "EntryHi";
break;
default:
goto die;
}
break;
case 11:
switch (sel) {
case 0:
gen_helper_mtc0_compare(arg);
rn = "Compare";
break;
/* 6,7 are implementation dependent */
default:
goto die;
}
/* Stop translation as we may have switched the execution mode */
ctx->bstate = BS_STOP;
break;
case 12:
switch (sel) {
case 0:
save_cpu_state(ctx, 1);
gen_helper_mtc0_status(arg);
/* BS_STOP isn't good enough here, hflags may have changed. */
gen_save_pc(ctx->pc + 4);
ctx->bstate = BS_EXCP;
rn = "Status";
break;
case 1:
check_insn(env, ctx, ISA_MIPS32R2);
gen_helper_mtc0_intctl(arg);
/* Stop translation as we may have switched the execution mode */
ctx->bstate = BS_STOP;
rn = "IntCtl";
break;
case 2:
check_insn(env, ctx, ISA_MIPS32R2);
gen_helper_mtc0_srsctl(arg);
/* Stop translation as we may have switched the execution mode */
ctx->bstate = BS_STOP;
rn = "SRSCtl";
break;
case 3:
check_insn(env, ctx, ISA_MIPS32R2);
gen_mtc0_store32(arg, offsetof(CPUState, CP0_SRSMap));
/* Stop translation as we may have switched the execution mode */
ctx->bstate = BS_STOP;
rn = "SRSMap";
break;
default:
goto die;
}
break;
case 13:
switch (sel) {
case 0:
save_cpu_state(ctx, 1);
gen_helper_mtc0_cause(arg);
rn = "Cause";
break;
default:
goto die;
}
break;
case 14:
switch (sel) {
case 0:
tcg_gen_st_tl(arg, cpu_env, offsetof(CPUState, CP0_EPC));
rn = "EPC";
break;
default:
goto die;
}
break;
case 15:
switch (sel) {
case 0:
/* ignored */
rn = "PRid";
break;
case 1:
check_insn(env, ctx, ISA_MIPS32R2);
gen_helper_mtc0_ebase(arg);
rn = "EBase";
break;
default:
goto die;
}
break;
case 16:
switch (sel) {
case 0:
gen_helper_mtc0_config0(arg);
rn = "Config";
/* Stop translation as we may have switched the execution mode */
ctx->bstate = BS_STOP;
break;
case 1:
/* ignored, read only */
rn = "Config1";
break;
case 2:
gen_helper_mtc0_config2(arg);
rn = "Config2";
/* Stop translation as we may have switched the execution mode */
ctx->bstate = BS_STOP;
break;
case 3:
/* ignored */
rn = "Config3";
break;
/* 6,7 are implementation dependent */
default:
rn = "Invalid config selector";
goto die;
}
break;
case 17:
switch (sel) {
case 0:
gen_helper_mtc0_lladdr(arg);
rn = "LLAddr";
break;
default:
goto die;
}
break;
case 18:
switch (sel) {
case 0 ... 7:
gen_helper_1i(mtc0_watchlo, arg, sel);
rn = "WatchLo";
break;
default:
goto die;
}
break;
case 19:
switch (sel) {
case 0 ... 7:
gen_helper_1i(mtc0_watchhi, arg, sel);
rn = "WatchHi";
break;
default:
goto die;
}
break;
case 20:
switch (sel) {
case 0:
check_insn(env, ctx, ISA_MIPS3);
gen_helper_mtc0_xcontext(arg);
rn = "XContext";
break;
default:
goto die;
}
break;
case 21:
/* Officially reserved, but sel 0 is used for R1x000 framemask */
switch (sel) {
case 0:
gen_helper_mtc0_framemask(arg);
rn = "Framemask";
break;
default:
goto die;
}
break;
case 22:
/* ignored */
rn = "Diagnostic"; /* implementation dependent */
break;
case 23:
switch (sel) {
case 0:
gen_helper_mtc0_debug(arg); /* EJTAG support */
/* BS_STOP isn't good enough here, hflags may have changed. */
gen_save_pc(ctx->pc + 4);
ctx->bstate = BS_EXCP;
rn = "Debug";
break;
case 1:
// gen_helper_mtc0_tracecontrol(arg); /* PDtrace support */
/* Stop translation as we may have switched the execution mode */
ctx->bstate = BS_STOP;
rn = "TraceControl";
// break;
case 2:
// gen_helper_mtc0_tracecontrol2(arg); /* PDtrace support */
/* Stop translation as we may have switched the execution mode */
ctx->bstate = BS_STOP;
rn = "TraceControl2";
// break;
case 3:
// gen_helper_mtc0_usertracedata(arg); /* PDtrace support */
/* Stop translation as we may have switched the execution mode */
ctx->bstate = BS_STOP;
rn = "UserTraceData";
// break;
case 4:
// gen_helper_mtc0_tracebpc(arg); /* PDtrace support */
/* Stop translation as we may have switched the execution mode */
ctx->bstate = BS_STOP;
rn = "TraceBPC";
// break;
default:
goto die;
}
break;
case 24:
switch (sel) {
case 0:
/* EJTAG support */
tcg_gen_st_tl(arg, cpu_env, offsetof(CPUState, CP0_DEPC));
rn = "DEPC";
break;
default:
goto die;
}
break;
case 25:
switch (sel) {
case 0:
gen_helper_mtc0_performance0(arg);
rn = "Performance0";
break;
case 1:
// gen_helper_mtc0_performance1(arg);
rn = "Performance1";
// break;
case 2:
// gen_helper_mtc0_performance2(arg);
rn = "Performance2";
// break;
case 3:
// gen_helper_mtc0_performance3(arg);
rn = "Performance3";
// break;
case 4:
// gen_helper_mtc0_performance4(arg);
rn = "Performance4";
// break;
case 5:
// gen_helper_mtc0_performance5(arg);
rn = "Performance5";
// break;
case 6:
// gen_helper_mtc0_performance6(arg);
rn = "Performance6";
// break;
case 7:
// gen_helper_mtc0_performance7(arg);
rn = "Performance7";
// break;
default:
goto die;
}
break;
case 26:
/* ignored */
rn = "ECC";
break;
case 27:
switch (sel) {
case 0 ... 3:
/* ignored */
rn = "CacheErr";
break;
default:
goto die;
}
break;
case 28:
switch (sel) {
case 0:
case 2:
case 4:
case 6:
gen_helper_mtc0_taglo(arg);
rn = "TagLo";
break;
case 1:
case 3:
case 5:
case 7:
gen_helper_mtc0_datalo(arg);
rn = "DataLo";
break;
default:
goto die;
}
break;
case 29:
switch (sel) {
case 0:
case 2:
case 4:
case 6:
gen_helper_mtc0_taghi(arg);
rn = "TagHi";
break;
case 1:
case 3:
case 5:
case 7:
gen_helper_mtc0_datahi(arg);
rn = "DataHi";
break;
default:
rn = "invalid sel";
goto die;
}
break;
case 30:
switch (sel) {
case 0:
tcg_gen_st_tl(arg, cpu_env, offsetof(CPUState, CP0_ErrorEPC));
rn = "ErrorEPC";
break;
default:
goto die;
}
break;
case 31:
switch (sel) {
case 0:
/* EJTAG support */
gen_mtc0_store32(arg, offsetof(CPUState, CP0_DESAVE));
rn = "DESAVE";
break;
default:
goto die;
}
/* Stop translation as we may have switched the execution mode */
ctx->bstate = BS_STOP;
break;
default:
goto die;
}
LOG_DISAS("dmtc0 %s (reg %d sel %d)\n", rn, reg, sel);
/* For simplicity assume that all writes can cause interrupts. */
if (use_icount) {
gen_io_end();
ctx->bstate = BS_STOP;
}
return;
die:
LOG_DISAS("dmtc0 %s (reg %d sel %d)\n", rn, reg, sel);
generate_exception(ctx, EXCP_RI);
}
#endif /* TARGET_MIPS64 */
static void gen_mftr(CPUState *env, DisasContext *ctx, int rt, int rd,
int u, int sel, int h)
{
int other_tc = env->CP0_VPEControl & (0xff << CP0VPECo_TargTC);
TCGv t0 = tcg_temp_local_new();
if ((env->CP0_VPEConf0 & (1 << CP0VPEC0_MVP)) == 0 &&
((env->tcs[other_tc].CP0_TCBind & (0xf << CP0TCBd_CurVPE)) !=
(env->active_tc.CP0_TCBind & (0xf << CP0TCBd_CurVPE))))
tcg_gen_movi_tl(t0, -1);
else if ((env->CP0_VPEControl & (0xff << CP0VPECo_TargTC)) >
(env->mvp->CP0_MVPConf0 & (0xff << CP0MVPC0_PTC)))
tcg_gen_movi_tl(t0, -1);
else if (u == 0) {
switch (rt) {
case 2:
switch (sel) {
case 1:
gen_helper_mftc0_tcstatus(t0);
break;
case 2:
gen_helper_mftc0_tcbind(t0);
break;
case 3:
gen_helper_mftc0_tcrestart(t0);
break;
case 4:
gen_helper_mftc0_tchalt(t0);
break;
case 5:
gen_helper_mftc0_tccontext(t0);
break;
case 6:
gen_helper_mftc0_tcschedule(t0);
break;
case 7:
gen_helper_mftc0_tcschefback(t0);
break;
default:
gen_mfc0(env, ctx, t0, rt, sel);
break;
}
break;
case 10:
switch (sel) {
case 0:
gen_helper_mftc0_entryhi(t0);
break;
default:
gen_mfc0(env, ctx, t0, rt, sel);
break;
}
case 12:
switch (sel) {
case 0:
gen_helper_mftc0_status(t0);
break;
default:
gen_mfc0(env, ctx, t0, rt, sel);
break;
}
case 23:
switch (sel) {
case 0:
gen_helper_mftc0_debug(t0);
break;
default:
gen_mfc0(env, ctx, t0, rt, sel);
break;
}
break;
default:
gen_mfc0(env, ctx, t0, rt, sel);
}
} else switch (sel) {
/* GPR registers. */
case 0:
gen_helper_1i(mftgpr, t0, rt);
break;
/* Auxiliary CPU registers */
case 1:
switch (rt) {
case 0:
gen_helper_1i(mftlo, t0, 0);
break;
case 1:
gen_helper_1i(mfthi, t0, 0);
break;
case 2:
gen_helper_1i(mftacx, t0, 0);
break;
case 4:
gen_helper_1i(mftlo, t0, 1);
break;
case 5:
gen_helper_1i(mfthi, t0, 1);
break;
case 6:
gen_helper_1i(mftacx, t0, 1);
break;
case 8:
gen_helper_1i(mftlo, t0, 2);
break;
case 9:
gen_helper_1i(mfthi, t0, 2);
break;
case 10:
gen_helper_1i(mftacx, t0, 2);
break;
case 12:
gen_helper_1i(mftlo, t0, 3);
break;
case 13:
gen_helper_1i(mfthi, t0, 3);
break;
case 14:
gen_helper_1i(mftacx, t0, 3);
break;
case 16:
gen_helper_mftdsp(t0);
break;
default:
goto die;
}
break;
/* Floating point (COP1). */
case 2:
/* XXX: For now we support only a single FPU context. */
if (h == 0) {
TCGv_i32 fp0 = tcg_temp_new_i32();
gen_load_fpr32(fp0, rt);
tcg_gen_ext_i32_tl(t0, fp0);
tcg_temp_free_i32(fp0);
} else {
TCGv_i32 fp0 = tcg_temp_new_i32();
gen_load_fpr32h(fp0, rt);
tcg_gen_ext_i32_tl(t0, fp0);
tcg_temp_free_i32(fp0);
}
break;
case 3:
/* XXX: For now we support only a single FPU context. */
gen_helper_1i(cfc1, t0, rt);
break;
/* COP2: Not implemented. */
case 4:
case 5:
/* fall through */
default:
goto die;
}
LOG_DISAS("mftr (reg %d u %d sel %d h %d)\n", rt, u, sel, h);
gen_store_gpr(t0, rd);
tcg_temp_free(t0);
return;
die:
tcg_temp_free(t0);
LOG_DISAS("mftr (reg %d u %d sel %d h %d)\n", rt, u, sel, h);
generate_exception(ctx, EXCP_RI);
}
static void gen_mttr(CPUState *env, DisasContext *ctx, int rd, int rt,
int u, int sel, int h)
{
int other_tc = env->CP0_VPEControl & (0xff << CP0VPECo_TargTC);
TCGv t0 = tcg_temp_local_new();
gen_load_gpr(t0, rt);
if ((env->CP0_VPEConf0 & (1 << CP0VPEC0_MVP)) == 0 &&
((env->tcs[other_tc].CP0_TCBind & (0xf << CP0TCBd_CurVPE)) !=
(env->active_tc.CP0_TCBind & (0xf << CP0TCBd_CurVPE))))
/* NOP */ ;
else if ((env->CP0_VPEControl & (0xff << CP0VPECo_TargTC)) >
(env->mvp->CP0_MVPConf0 & (0xff << CP0MVPC0_PTC)))
/* NOP */ ;
else if (u == 0) {
switch (rd) {
case 2:
switch (sel) {
case 1:
gen_helper_mttc0_tcstatus(t0);
break;
case 2:
gen_helper_mttc0_tcbind(t0);
break;
case 3:
gen_helper_mttc0_tcrestart(t0);
break;
case 4:
gen_helper_mttc0_tchalt(t0);
break;
case 5:
gen_helper_mttc0_tccontext(t0);
break;
case 6:
gen_helper_mttc0_tcschedule(t0);
break;
case 7:
gen_helper_mttc0_tcschefback(t0);
break;
default:
gen_mtc0(env, ctx, t0, rd, sel);
break;
}
break;
case 10:
switch (sel) {
case 0:
gen_helper_mttc0_entryhi(t0);
break;
default:
gen_mtc0(env, ctx, t0, rd, sel);
break;
}
case 12:
switch (sel) {
case 0:
gen_helper_mttc0_status(t0);
break;
default:
gen_mtc0(env, ctx, t0, rd, sel);
break;
}
case 23:
switch (sel) {
case 0:
gen_helper_mttc0_debug(t0);
break;
default:
gen_mtc0(env, ctx, t0, rd, sel);
break;
}
break;
default:
gen_mtc0(env, ctx, t0, rd, sel);
}
} else switch (sel) {
/* GPR registers. */
case 0:
gen_helper_1i(mttgpr, t0, rd);
break;
/* Auxiliary CPU registers */
case 1:
switch (rd) {
case 0:
gen_helper_1i(mttlo, t0, 0);
break;
case 1:
gen_helper_1i(mtthi, t0, 0);
break;
case 2:
gen_helper_1i(mttacx, t0, 0);
break;
case 4:
gen_helper_1i(mttlo, t0, 1);
break;
case 5:
gen_helper_1i(mtthi, t0, 1);
break;
case 6:
gen_helper_1i(mttacx, t0, 1);
break;
case 8:
gen_helper_1i(mttlo, t0, 2);
break;
case 9:
gen_helper_1i(mtthi, t0, 2);
break;
case 10:
gen_helper_1i(mttacx, t0, 2);
break;
case 12:
gen_helper_1i(mttlo, t0, 3);
break;
case 13:
gen_helper_1i(mtthi, t0, 3);
break;
case 14:
gen_helper_1i(mttacx, t0, 3);
break;
case 16:
gen_helper_mttdsp(t0);
break;
default:
goto die;
}
break;
/* Floating point (COP1). */
case 2:
/* XXX: For now we support only a single FPU context. */
if (h == 0) {
TCGv_i32 fp0 = tcg_temp_new_i32();
tcg_gen_trunc_tl_i32(fp0, t0);
gen_store_fpr32(fp0, rd);
tcg_temp_free_i32(fp0);
} else {
TCGv_i32 fp0 = tcg_temp_new_i32();
tcg_gen_trunc_tl_i32(fp0, t0);
gen_store_fpr32h(fp0, rd);
tcg_temp_free_i32(fp0);
}
break;
case 3:
/* XXX: For now we support only a single FPU context. */
gen_helper_1i(ctc1, t0, rd);
break;
/* COP2: Not implemented. */
case 4:
case 5:
/* fall through */
default:
goto die;
}
LOG_DISAS("mttr (reg %d u %d sel %d h %d)\n", rd, u, sel, h);
tcg_temp_free(t0);
return;
die:
tcg_temp_free(t0);
LOG_DISAS("mttr (reg %d u %d sel %d h %d)\n", rd, u, sel, h);
generate_exception(ctx, EXCP_RI);
}
static void gen_cp0 (CPUState *env, DisasContext *ctx, uint32_t opc, int rt, int rd)
{
const char *opn = "ldst";
switch (opc) {
case OPC_MFC0:
if (rt == 0) {
/* Treat as NOP. */
return;
}
gen_mfc0(env, ctx, cpu_gpr[rt], rd, ctx->opcode & 0x7);
opn = "mfc0";
break;
case OPC_MTC0:
{
TCGv t0 = tcg_temp_new();
gen_load_gpr(t0, rt);
gen_mtc0(env, ctx, t0, rd, ctx->opcode & 0x7);
tcg_temp_free(t0);
}
opn = "mtc0";
break;
#if defined(TARGET_MIPS64)
case OPC_DMFC0:
check_insn(env, ctx, ISA_MIPS3);
if (rt == 0) {
/* Treat as NOP. */
return;
}
gen_dmfc0(env, ctx, cpu_gpr[rt], rd, ctx->opcode & 0x7);
opn = "dmfc0";
break;
case OPC_DMTC0:
check_insn(env, ctx, ISA_MIPS3);
{
TCGv t0 = tcg_temp_new();
gen_load_gpr(t0, rt);
gen_dmtc0(env, ctx, t0, rd, ctx->opcode & 0x7);
tcg_temp_free(t0);
}
opn = "dmtc0";
break;
#endif
case OPC_MFTR:
check_insn(env, ctx, ASE_MT);
if (rd == 0) {
/* Treat as NOP. */
return;
}
gen_mftr(env, ctx, rt, rd, (ctx->opcode >> 5) & 1,
ctx->opcode & 0x7, (ctx->opcode >> 4) & 1);
opn = "mftr";
break;
case OPC_MTTR:
check_insn(env, ctx, ASE_MT);
gen_mttr(env, ctx, rd, rt, (ctx->opcode >> 5) & 1,
ctx->opcode & 0x7, (ctx->opcode >> 4) & 1);
opn = "mttr";
break;
case OPC_TLBWI:
opn = "tlbwi";
if (!env->tlb->helper_tlbwi)
goto die;
gen_helper_tlbwi();
break;
case OPC_TLBWR:
opn = "tlbwr";
if (!env->tlb->helper_tlbwr)
goto die;
gen_helper_tlbwr();
break;
case OPC_TLBP:
opn = "tlbp";
if (!env->tlb->helper_tlbp)
goto die;
gen_helper_tlbp();
break;
case OPC_TLBR:
opn = "tlbr";
if (!env->tlb->helper_tlbr)
goto die;
gen_helper_tlbr();
break;
case OPC_ERET:
opn = "eret";
check_insn(env, ctx, ISA_MIPS2);
gen_helper_eret();
ctx->bstate = BS_EXCP;
break;
case OPC_DERET:
opn = "deret";
check_insn(env, ctx, ISA_MIPS32);
if (!(ctx->hflags & MIPS_HFLAG_DM)) {
MIPS_INVAL(opn);
generate_exception(ctx, EXCP_RI);
} else {
gen_helper_deret();
ctx->bstate = BS_EXCP;
}
break;
case OPC_WAIT:
opn = "wait";
check_insn(env, ctx, ISA_MIPS3 | ISA_MIPS32);
/* If we get an exception, we want to restart at next instruction */
ctx->pc += 4;
save_cpu_state(ctx, 1);
ctx->pc -= 4;
gen_helper_wait();
ctx->bstate = BS_EXCP;
break;
default:
die:
MIPS_INVAL(opn);
generate_exception(ctx, EXCP_RI);
return;
}
MIPS_DEBUG("%s %s %d", opn, regnames[rt], rd);
}
#endif /* !CONFIG_USER_ONLY */
/* CP1 Branches (before delay slot) */
static void gen_compute_branch1 (CPUState *env, DisasContext *ctx, uint32_t op,
int32_t cc, int32_t offset)
{
target_ulong btarget;
const char *opn = "cp1 cond branch";
TCGv_i32 t0 = tcg_temp_new_i32();
if (cc != 0)
check_insn(env, ctx, ISA_MIPS4 | ISA_MIPS32);
btarget = ctx->pc + 4 + offset;
switch (op) {
case OPC_BC1F:
tcg_gen_shri_i32(t0, fpu_fcr31, get_fp_bit(cc));
tcg_gen_not_i32(t0, t0);
tcg_gen_andi_i32(t0, t0, 1);
tcg_gen_extu_i32_tl(bcond, t0);
opn = "bc1f";
goto not_likely;
case OPC_BC1FL:
tcg_gen_shri_i32(t0, fpu_fcr31, get_fp_bit(cc));
tcg_gen_not_i32(t0, t0);
tcg_gen_andi_i32(t0, t0, 1);
tcg_gen_extu_i32_tl(bcond, t0);
opn = "bc1fl";
goto likely;
case OPC_BC1T:
tcg_gen_shri_i32(t0, fpu_fcr31, get_fp_bit(cc));
tcg_gen_andi_i32(t0, t0, 1);
tcg_gen_extu_i32_tl(bcond, t0);
opn = "bc1t";
goto not_likely;
case OPC_BC1TL:
tcg_gen_shri_i32(t0, fpu_fcr31, get_fp_bit(cc));
tcg_gen_andi_i32(t0, t0, 1);
tcg_gen_extu_i32_tl(bcond, t0);
opn = "bc1tl";
likely:
ctx->hflags |= MIPS_HFLAG_BL;
break;
case OPC_BC1FANY2:
{
TCGv_i32 t1 = tcg_temp_new_i32();
tcg_gen_shri_i32(t0, fpu_fcr31, get_fp_bit(cc));
tcg_gen_shri_i32(t1, fpu_fcr31, get_fp_bit(cc+1));
tcg_gen_nor_i32(t0, t0, t1);
tcg_temp_free_i32(t1);
tcg_gen_andi_i32(t0, t0, 1);
tcg_gen_extu_i32_tl(bcond, t0);
}
opn = "bc1any2f";
goto not_likely;
case OPC_BC1TANY2:
{
TCGv_i32 t1 = tcg_temp_new_i32();
tcg_gen_shri_i32(t0, fpu_fcr31, get_fp_bit(cc));
tcg_gen_shri_i32(t1, fpu_fcr31, get_fp_bit(cc+1));
tcg_gen_or_i32(t0, t0, t1);
tcg_temp_free_i32(t1);
tcg_gen_andi_i32(t0, t0, 1);
tcg_gen_extu_i32_tl(bcond, t0);
}
opn = "bc1any2t";
goto not_likely;
case OPC_BC1FANY4:
{
TCGv_i32 t1 = tcg_temp_new_i32();
tcg_gen_shri_i32(t0, fpu_fcr31, get_fp_bit(cc));
tcg_gen_shri_i32(t1, fpu_fcr31, get_fp_bit(cc+1));
tcg_gen_or_i32(t0, t0, t1);
tcg_gen_shri_i32(t1, fpu_fcr31, get_fp_bit(cc+2));
tcg_gen_or_i32(t0, t0, t1);
tcg_gen_shri_i32(t1, fpu_fcr31, get_fp_bit(cc+3));
tcg_gen_nor_i32(t0, t0, t1);
tcg_temp_free_i32(t1);
tcg_gen_andi_i32(t0, t0, 1);
tcg_gen_extu_i32_tl(bcond, t0);
}
opn = "bc1any4f";
goto not_likely;
case OPC_BC1TANY4:
{
TCGv_i32 t1 = tcg_temp_new_i32();
tcg_gen_shri_i32(t0, fpu_fcr31, get_fp_bit(cc));
tcg_gen_shri_i32(t1, fpu_fcr31, get_fp_bit(cc+1));
tcg_gen_or_i32(t0, t0, t1);
tcg_gen_shri_i32(t1, fpu_fcr31, get_fp_bit(cc+2));
tcg_gen_or_i32(t0, t0, t1);
tcg_gen_shri_i32(t1, fpu_fcr31, get_fp_bit(cc+3));
tcg_gen_or_i32(t0, t0, t1);
tcg_temp_free_i32(t1);
tcg_gen_andi_i32(t0, t0, 1);
tcg_gen_extu_i32_tl(bcond, t0);
}
opn = "bc1any4t";
not_likely:
ctx->hflags |= MIPS_HFLAG_BC;
break;
default:
MIPS_INVAL(opn);
generate_exception (ctx, EXCP_RI);
goto out;
}
MIPS_DEBUG("%s: cond %02x target " TARGET_FMT_lx, opn,
ctx->hflags, btarget);
ctx->btarget = btarget;
out:
tcg_temp_free_i32(t0);
}
/* Coprocessor 1 (FPU) */
#define FOP(func, fmt) (((fmt) << 21) | (func))
enum fopcode {
OPC_ADD_S = FOP(0, FMT_S),
OPC_SUB_S = FOP(1, FMT_S),
OPC_MUL_S = FOP(2, FMT_S),
OPC_DIV_S = FOP(3, FMT_S),
OPC_SQRT_S = FOP(4, FMT_S),
OPC_ABS_S = FOP(5, FMT_S),
OPC_MOV_S = FOP(6, FMT_S),
OPC_NEG_S = FOP(7, FMT_S),
OPC_ROUND_L_S = FOP(8, FMT_S),
OPC_TRUNC_L_S = FOP(9, FMT_S),
OPC_CEIL_L_S = FOP(10, FMT_S),
OPC_FLOOR_L_S = FOP(11, FMT_S),
OPC_ROUND_W_S = FOP(12, FMT_S),
OPC_TRUNC_W_S = FOP(13, FMT_S),
OPC_CEIL_W_S = FOP(14, FMT_S),
OPC_FLOOR_W_S = FOP(15, FMT_S),
OPC_MOVCF_S = FOP(17, FMT_S),
OPC_MOVZ_S = FOP(18, FMT_S),
OPC_MOVN_S = FOP(19, FMT_S),
OPC_RECIP_S = FOP(21, FMT_S),
OPC_RSQRT_S = FOP(22, FMT_S),
OPC_RECIP2_S = FOP(28, FMT_S),
OPC_RECIP1_S = FOP(29, FMT_S),
OPC_RSQRT1_S = FOP(30, FMT_S),
OPC_RSQRT2_S = FOP(31, FMT_S),
OPC_CVT_D_S = FOP(33, FMT_S),
OPC_CVT_W_S = FOP(36, FMT_S),
OPC_CVT_L_S = FOP(37, FMT_S),
OPC_CVT_PS_S = FOP(38, FMT_S),
OPC_CMP_F_S = FOP (48, FMT_S),
OPC_CMP_UN_S = FOP (49, FMT_S),
OPC_CMP_EQ_S = FOP (50, FMT_S),
OPC_CMP_UEQ_S = FOP (51, FMT_S),
OPC_CMP_OLT_S = FOP (52, FMT_S),
OPC_CMP_ULT_S = FOP (53, FMT_S),
OPC_CMP_OLE_S = FOP (54, FMT_S),
OPC_CMP_ULE_S = FOP (55, FMT_S),
OPC_CMP_SF_S = FOP (56, FMT_S),
OPC_CMP_NGLE_S = FOP (57, FMT_S),
OPC_CMP_SEQ_S = FOP (58, FMT_S),
OPC_CMP_NGL_S = FOP (59, FMT_S),
OPC_CMP_LT_S = FOP (60, FMT_S),
OPC_CMP_NGE_S = FOP (61, FMT_S),
OPC_CMP_LE_S = FOP (62, FMT_S),
OPC_CMP_NGT_S = FOP (63, FMT_S),
OPC_ADD_D = FOP(0, FMT_D),
OPC_SUB_D = FOP(1, FMT_D),
OPC_MUL_D = FOP(2, FMT_D),
OPC_DIV_D = FOP(3, FMT_D),
OPC_SQRT_D = FOP(4, FMT_D),
OPC_ABS_D = FOP(5, FMT_D),
OPC_MOV_D = FOP(6, FMT_D),
OPC_NEG_D = FOP(7, FMT_D),
OPC_ROUND_L_D = FOP(8, FMT_D),
OPC_TRUNC_L_D = FOP(9, FMT_D),
OPC_CEIL_L_D = FOP(10, FMT_D),
OPC_FLOOR_L_D = FOP(11, FMT_D),
OPC_ROUND_W_D = FOP(12, FMT_D),
OPC_TRUNC_W_D = FOP(13, FMT_D),
OPC_CEIL_W_D = FOP(14, FMT_D),
OPC_FLOOR_W_D = FOP(15, FMT_D),
OPC_MOVCF_D = FOP(17, FMT_D),
OPC_MOVZ_D = FOP(18, FMT_D),
OPC_MOVN_D = FOP(19, FMT_D),
OPC_RECIP_D = FOP(21, FMT_D),
OPC_RSQRT_D = FOP(22, FMT_D),
OPC_RECIP2_D = FOP(28, FMT_D),
OPC_RECIP1_D = FOP(29, FMT_D),
OPC_RSQRT1_D = FOP(30, FMT_D),
OPC_RSQRT2_D = FOP(31, FMT_D),
OPC_CVT_S_D = FOP(32, FMT_D),
OPC_CVT_W_D = FOP(36, FMT_D),
OPC_CVT_L_D = FOP(37, FMT_D),
OPC_CMP_F_D = FOP (48, FMT_D),
OPC_CMP_UN_D = FOP (49, FMT_D),
OPC_CMP_EQ_D = FOP (50, FMT_D),
OPC_CMP_UEQ_D = FOP (51, FMT_D),
OPC_CMP_OLT_D = FOP (52, FMT_D),
OPC_CMP_ULT_D = FOP (53, FMT_D),
OPC_CMP_OLE_D = FOP (54, FMT_D),
OPC_CMP_ULE_D = FOP (55, FMT_D),
OPC_CMP_SF_D = FOP (56, FMT_D),
OPC_CMP_NGLE_D = FOP (57, FMT_D),
OPC_CMP_SEQ_D = FOP (58, FMT_D),
OPC_CMP_NGL_D = FOP (59, FMT_D),
OPC_CMP_LT_D = FOP (60, FMT_D),
OPC_CMP_NGE_D = FOP (61, FMT_D),
OPC_CMP_LE_D = FOP (62, FMT_D),
OPC_CMP_NGT_D = FOP (63, FMT_D),
OPC_CVT_S_W = FOP(32, FMT_W),
OPC_CVT_D_W = FOP(33, FMT_W),
OPC_CVT_S_L = FOP(32, FMT_L),
OPC_CVT_D_L = FOP(33, FMT_L),
OPC_CVT_PS_PW = FOP(38, FMT_W),
OPC_ADD_PS = FOP(0, FMT_PS),
OPC_SUB_PS = FOP(1, FMT_PS),
OPC_MUL_PS = FOP(2, FMT_PS),
OPC_DIV_PS = FOP(3, FMT_PS),
OPC_ABS_PS = FOP(5, FMT_PS),
OPC_MOV_PS = FOP(6, FMT_PS),
OPC_NEG_PS = FOP(7, FMT_PS),
OPC_MOVCF_PS = FOP(17, FMT_PS),
OPC_MOVZ_PS = FOP(18, FMT_PS),
OPC_MOVN_PS = FOP(19, FMT_PS),
OPC_ADDR_PS = FOP(24, FMT_PS),
OPC_MULR_PS = FOP(26, FMT_PS),
OPC_RECIP2_PS = FOP(28, FMT_PS),
OPC_RECIP1_PS = FOP(29, FMT_PS),
OPC_RSQRT1_PS = FOP(30, FMT_PS),
OPC_RSQRT2_PS = FOP(31, FMT_PS),
OPC_CVT_S_PU = FOP(32, FMT_PS),
OPC_CVT_PW_PS = FOP(36, FMT_PS),
OPC_CVT_S_PL = FOP(40, FMT_PS),
OPC_PLL_PS = FOP(44, FMT_PS),
OPC_PLU_PS = FOP(45, FMT_PS),
OPC_PUL_PS = FOP(46, FMT_PS),
OPC_PUU_PS = FOP(47, FMT_PS),
OPC_CMP_F_PS = FOP (48, FMT_PS),
OPC_CMP_UN_PS = FOP (49, FMT_PS),
OPC_CMP_EQ_PS = FOP (50, FMT_PS),
OPC_CMP_UEQ_PS = FOP (51, FMT_PS),
OPC_CMP_OLT_PS = FOP (52, FMT_PS),
OPC_CMP_ULT_PS = FOP (53, FMT_PS),
OPC_CMP_OLE_PS = FOP (54, FMT_PS),
OPC_CMP_ULE_PS = FOP (55, FMT_PS),
OPC_CMP_SF_PS = FOP (56, FMT_PS),
OPC_CMP_NGLE_PS = FOP (57, FMT_PS),
OPC_CMP_SEQ_PS = FOP (58, FMT_PS),
OPC_CMP_NGL_PS = FOP (59, FMT_PS),
OPC_CMP_LT_PS = FOP (60, FMT_PS),
OPC_CMP_NGE_PS = FOP (61, FMT_PS),
OPC_CMP_LE_PS = FOP (62, FMT_PS),
OPC_CMP_NGT_PS = FOP (63, FMT_PS),
};
static void gen_cp1 (DisasContext *ctx, uint32_t opc, int rt, int fs)
{
const char *opn = "cp1 move";
TCGv t0 = tcg_temp_new();
switch (opc) {
case OPC_MFC1:
{
TCGv_i32 fp0 = tcg_temp_new_i32();
gen_load_fpr32(fp0, fs);
tcg_gen_ext_i32_tl(t0, fp0);
tcg_temp_free_i32(fp0);
}
gen_store_gpr(t0, rt);
opn = "mfc1";
break;
case OPC_MTC1:
gen_load_gpr(t0, rt);
{
TCGv_i32 fp0 = tcg_temp_new_i32();
tcg_gen_trunc_tl_i32(fp0, t0);
gen_store_fpr32(fp0, fs);
tcg_temp_free_i32(fp0);
}
opn = "mtc1";
break;
case OPC_CFC1:
gen_helper_1i(cfc1, t0, fs);
gen_store_gpr(t0, rt);
opn = "cfc1";
break;
case OPC_CTC1:
gen_load_gpr(t0, rt);
gen_helper_1i(ctc1, t0, fs);
opn = "ctc1";
break;
#if defined(TARGET_MIPS64)
case OPC_DMFC1:
gen_load_fpr64(ctx, t0, fs);
gen_store_gpr(t0, rt);
opn = "dmfc1";
break;
case OPC_DMTC1:
gen_load_gpr(t0, rt);
gen_store_fpr64(ctx, t0, fs);
opn = "dmtc1";
break;
#endif
case OPC_MFHC1:
{
TCGv_i32 fp0 = tcg_temp_new_i32();
gen_load_fpr32h(fp0, fs);
tcg_gen_ext_i32_tl(t0, fp0);
tcg_temp_free_i32(fp0);
}
gen_store_gpr(t0, rt);
opn = "mfhc1";
break;
case OPC_MTHC1:
gen_load_gpr(t0, rt);
{
TCGv_i32 fp0 = tcg_temp_new_i32();
tcg_gen_trunc_tl_i32(fp0, t0);
gen_store_fpr32h(fp0, fs);
tcg_temp_free_i32(fp0);
}
opn = "mthc1";
break;
default:
MIPS_INVAL(opn);
generate_exception (ctx, EXCP_RI);
goto out;
}
MIPS_DEBUG("%s %s %s", opn, regnames[rt], fregnames[fs]);
out:
tcg_temp_free(t0);
}
static void gen_movci (DisasContext *ctx, int rd, int rs, int cc, int tf)
{
int l1;
TCGCond cond;
TCGv_i32 t0;
if (rd == 0) {
/* Treat as NOP. */
return;
}
if (tf)
cond = TCG_COND_EQ;
else
cond = TCG_COND_NE;
l1 = gen_new_label();
t0 = tcg_temp_new_i32();
tcg_gen_andi_i32(t0, fpu_fcr31, 1 << get_fp_bit(cc));
tcg_gen_brcondi_i32(cond, t0, 0, l1);
tcg_temp_free_i32(t0);
if (rs == 0) {
tcg_gen_movi_tl(cpu_gpr[rd], 0);
} else {
tcg_gen_mov_tl(cpu_gpr[rd], cpu_gpr[rs]);
}
gen_set_label(l1);
}
static inline void gen_movcf_s (int fs, int fd, int cc, int tf)
{
int cond;
TCGv_i32 t0 = tcg_temp_new_i32();
int l1 = gen_new_label();
if (tf)
cond = TCG_COND_EQ;
else
cond = TCG_COND_NE;
tcg_gen_andi_i32(t0, fpu_fcr31, 1 << get_fp_bit(cc));
tcg_gen_brcondi_i32(cond, t0, 0, l1);
gen_load_fpr32(t0, fs);
gen_store_fpr32(t0, fd);
gen_set_label(l1);
tcg_temp_free_i32(t0);
}
static inline void gen_movcf_d (DisasContext *ctx, int fs, int fd, int cc, int tf)
{
int cond;
TCGv_i32 t0 = tcg_temp_new_i32();
TCGv_i64 fp0;
int l1 = gen_new_label();
if (tf)
cond = TCG_COND_EQ;
else
cond = TCG_COND_NE;
tcg_gen_andi_i32(t0, fpu_fcr31, 1 << get_fp_bit(cc));
tcg_gen_brcondi_i32(cond, t0, 0, l1);
tcg_temp_free_i32(t0);
fp0 = tcg_temp_new_i64();
gen_load_fpr64(ctx, fp0, fs);
gen_store_fpr64(ctx, fp0, fd);
tcg_temp_free_i64(fp0);
gen_set_label(l1);
}
static inline void gen_movcf_ps (int fs, int fd, int cc, int tf)
{
int cond;
TCGv_i32 t0 = tcg_temp_new_i32();
int l1 = gen_new_label();
int l2 = gen_new_label();
if (tf)
cond = TCG_COND_EQ;
else
cond = TCG_COND_NE;
tcg_gen_andi_i32(t0, fpu_fcr31, 1 << get_fp_bit(cc));
tcg_gen_brcondi_i32(cond, t0, 0, l1);
gen_load_fpr32(t0, fs);
gen_store_fpr32(t0, fd);
gen_set_label(l1);
tcg_gen_andi_i32(t0, fpu_fcr31, 1 << get_fp_bit(cc+1));
tcg_gen_brcondi_i32(cond, t0, 0, l2);
gen_load_fpr32h(t0, fs);
gen_store_fpr32h(t0, fd);
tcg_temp_free_i32(t0);
gen_set_label(l2);
}
static void gen_farith (DisasContext *ctx, enum fopcode op1,
int ft, int fs, int fd, int cc)
{
const char *opn = "farith";
const char *condnames[] = {
"c.f",
"c.un",
"c.eq",
"c.ueq",
"c.olt",
"c.ult",
"c.ole",
"c.ule",
"c.sf",
"c.ngle",
"c.seq",
"c.ngl",
"c.lt",
"c.nge",
"c.le",
"c.ngt",
};
const char *condnames_abs[] = {
"cabs.f",
"cabs.un",
"cabs.eq",
"cabs.ueq",
"cabs.olt",
"cabs.ult",
"cabs.ole",
"cabs.ule",
"cabs.sf",
"cabs.ngle",
"cabs.seq",
"cabs.ngl",
"cabs.lt",
"cabs.nge",
"cabs.le",
"cabs.ngt",
};
enum { BINOP, CMPOP, OTHEROP } optype = OTHEROP;
uint32_t func = ctx->opcode & 0x3f;
switch (op1) {
case OPC_ADD_S:
{
TCGv_i32 fp0 = tcg_temp_new_i32();
TCGv_i32 fp1 = tcg_temp_new_i32();
gen_load_fpr32(fp0, fs);
gen_load_fpr32(fp1, ft);
gen_helper_float_add_s(fp0, fp0, fp1);
tcg_temp_free_i32(fp1);
gen_store_fpr32(fp0, fd);
tcg_temp_free_i32(fp0);
}
opn = "add.s";
optype = BINOP;
break;
case OPC_SUB_S:
{
TCGv_i32 fp0 = tcg_temp_new_i32();
TCGv_i32 fp1 = tcg_temp_new_i32();
gen_load_fpr32(fp0, fs);
gen_load_fpr32(fp1, ft);
gen_helper_float_sub_s(fp0, fp0, fp1);
tcg_temp_free_i32(fp1);
gen_store_fpr32(fp0, fd);
tcg_temp_free_i32(fp0);
}
opn = "sub.s";
optype = BINOP;
break;
case OPC_MUL_S:
{
TCGv_i32 fp0 = tcg_temp_new_i32();
TCGv_i32 fp1 = tcg_temp_new_i32();
gen_load_fpr32(fp0, fs);
gen_load_fpr32(fp1, ft);
gen_helper_float_mul_s(fp0, fp0, fp1);
tcg_temp_free_i32(fp1);
gen_store_fpr32(fp0, fd);
tcg_temp_free_i32(fp0);
}
opn = "mul.s";
optype = BINOP;
break;
case OPC_DIV_S:
{
TCGv_i32 fp0 = tcg_temp_new_i32();
TCGv_i32 fp1 = tcg_temp_new_i32();
gen_load_fpr32(fp0, fs);
gen_load_fpr32(fp1, ft);
gen_helper_float_div_s(fp0, fp0, fp1);
tcg_temp_free_i32(fp1);
gen_store_fpr32(fp0, fd);
tcg_temp_free_i32(fp0);
}
opn = "div.s";
optype = BINOP;
break;
case OPC_SQRT_S:
{
TCGv_i32 fp0 = tcg_temp_new_i32();
gen_load_fpr32(fp0, fs);
gen_helper_float_sqrt_s(fp0, fp0);
gen_store_fpr32(fp0, fd);
tcg_temp_free_i32(fp0);
}
opn = "sqrt.s";
break;
case OPC_ABS_S:
{
TCGv_i32 fp0 = tcg_temp_new_i32();
gen_load_fpr32(fp0, fs);
gen_helper_float_abs_s(fp0, fp0);
gen_store_fpr32(fp0, fd);
tcg_temp_free_i32(fp0);
}
opn = "abs.s";
break;
case OPC_MOV_S:
{
TCGv_i32 fp0 = tcg_temp_new_i32();
gen_load_fpr32(fp0, fs);
gen_store_fpr32(fp0, fd);
tcg_temp_free_i32(fp0);
}
opn = "mov.s";
break;
case OPC_NEG_S:
{
TCGv_i32 fp0 = tcg_temp_new_i32();
gen_load_fpr32(fp0, fs);
gen_helper_float_chs_s(fp0, fp0);
gen_store_fpr32(fp0, fd);
tcg_temp_free_i32(fp0);
}
opn = "neg.s";
break;
case OPC_ROUND_L_S:
check_cp1_64bitmode(ctx);
{
TCGv_i32 fp32 = tcg_temp_new_i32();
TCGv_i64 fp64 = tcg_temp_new_i64();
gen_load_fpr32(fp32, fs);
gen_helper_float_roundl_s(fp64, fp32);
tcg_temp_free_i32(fp32);
gen_store_fpr64(ctx, fp64, fd);
tcg_temp_free_i64(fp64);
}
opn = "round.l.s";
break;
case OPC_TRUNC_L_S:
check_cp1_64bitmode(ctx);
{
TCGv_i32 fp32 = tcg_temp_new_i32();
TCGv_i64 fp64 = tcg_temp_new_i64();
gen_load_fpr32(fp32, fs);
gen_helper_float_truncl_s(fp64, fp32);
tcg_temp_free_i32(fp32);
gen_store_fpr64(ctx, fp64, fd);
tcg_temp_free_i64(fp64);
}
opn = "trunc.l.s";
break;
case OPC_CEIL_L_S:
check_cp1_64bitmode(ctx);
{
TCGv_i32 fp32 = tcg_temp_new_i32();
TCGv_i64 fp64 = tcg_temp_new_i64();
gen_load_fpr32(fp32, fs);
gen_helper_float_ceill_s(fp64, fp32);
tcg_temp_free_i32(fp32);
gen_store_fpr64(ctx, fp64, fd);
tcg_temp_free_i64(fp64);
}
opn = "ceil.l.s";
break;
case OPC_FLOOR_L_S:
check_cp1_64bitmode(ctx);
{
TCGv_i32 fp32 = tcg_temp_new_i32();
TCGv_i64 fp64 = tcg_temp_new_i64();
gen_load_fpr32(fp32, fs);
gen_helper_float_floorl_s(fp64, fp32);
tcg_temp_free_i32(fp32);
gen_store_fpr64(ctx, fp64, fd);
tcg_temp_free_i64(fp64);
}
opn = "floor.l.s";
break;
case OPC_ROUND_W_S:
{
TCGv_i32 fp0 = tcg_temp_new_i32();
gen_load_fpr32(fp0, fs);
gen_helper_float_roundw_s(fp0, fp0);
gen_store_fpr32(fp0, fd);
tcg_temp_free_i32(fp0);
}
opn = "round.w.s";
break;
case OPC_TRUNC_W_S:
{
TCGv_i32 fp0 = tcg_temp_new_i32();
gen_load_fpr32(fp0, fs);
gen_helper_float_truncw_s(fp0, fp0);
gen_store_fpr32(fp0, fd);
tcg_temp_free_i32(fp0);
}
opn = "trunc.w.s";
break;
case OPC_CEIL_W_S:
{
TCGv_i32 fp0 = tcg_temp_new_i32();
gen_load_fpr32(fp0, fs);
gen_helper_float_ceilw_s(fp0, fp0);
gen_store_fpr32(fp0, fd);
tcg_temp_free_i32(fp0);
}
opn = "ceil.w.s";
break;
case OPC_FLOOR_W_S:
{
TCGv_i32 fp0 = tcg_temp_new_i32();
gen_load_fpr32(fp0, fs);
gen_helper_float_floorw_s(fp0, fp0);
gen_store_fpr32(fp0, fd);
tcg_temp_free_i32(fp0);
}
opn = "floor.w.s";
break;
case OPC_MOVCF_S:
gen_movcf_s(fs, fd, (ft >> 2) & 0x7, ft & 0x1);
opn = "movcf.s";
break;
case OPC_MOVZ_S:
{
int l1 = gen_new_label();
TCGv_i32 fp0;
if (ft != 0) {
tcg_gen_brcondi_tl(TCG_COND_NE, cpu_gpr[ft], 0, l1);
}
fp0 = tcg_temp_new_i32();
gen_load_fpr32(fp0, fs);
gen_store_fpr32(fp0, fd);
tcg_temp_free_i32(fp0);
gen_set_label(l1);
}
opn = "movz.s";
break;
case OPC_MOVN_S:
{
int l1 = gen_new_label();
TCGv_i32 fp0;
if (ft != 0) {
tcg_gen_brcondi_tl(TCG_COND_EQ, cpu_gpr[ft], 0, l1);
fp0 = tcg_temp_new_i32();
gen_load_fpr32(fp0, fs);
gen_store_fpr32(fp0, fd);
tcg_temp_free_i32(fp0);
gen_set_label(l1);
}
}
opn = "movn.s";
break;
case OPC_RECIP_S:
check_cop1x(ctx);
{
TCGv_i32 fp0 = tcg_temp_new_i32();
gen_load_fpr32(fp0, fs);
gen_helper_float_recip_s(fp0, fp0);
gen_store_fpr32(fp0, fd);
tcg_temp_free_i32(fp0);
}
opn = "recip.s";
break;
case OPC_RSQRT_S:
check_cop1x(ctx);
{
TCGv_i32 fp0 = tcg_temp_new_i32();
gen_load_fpr32(fp0, fs);
gen_helper_float_rsqrt_s(fp0, fp0);
gen_store_fpr32(fp0, fd);
tcg_temp_free_i32(fp0);
}
opn = "rsqrt.s";
break;
case OPC_RECIP2_S:
check_cp1_64bitmode(ctx);
{
TCGv_i32 fp0 = tcg_temp_new_i32();
TCGv_i32 fp1 = tcg_temp_new_i32();
gen_load_fpr32(fp0, fs);
gen_load_fpr32(fp1, fd);
gen_helper_float_recip2_s(fp0, fp0, fp1);
tcg_temp_free_i32(fp1);
gen_store_fpr32(fp0, fd);
tcg_temp_free_i32(fp0);
}
opn = "recip2.s";
break;
case OPC_RECIP1_S:
check_cp1_64bitmode(ctx);
{
TCGv_i32 fp0 = tcg_temp_new_i32();
gen_load_fpr32(fp0, fs);
gen_helper_float_recip1_s(fp0, fp0);
gen_store_fpr32(fp0, fd);
tcg_temp_free_i32(fp0);
}
opn = "recip1.s";
break;
case OPC_RSQRT1_S:
check_cp1_64bitmode(ctx);
{
TCGv_i32 fp0 = tcg_temp_new_i32();
gen_load_fpr32(fp0, fs);
gen_helper_float_rsqrt1_s(fp0, fp0);
gen_store_fpr32(fp0, fd);
tcg_temp_free_i32(fp0);
}
opn = "rsqrt1.s";
break;
case OPC_RSQRT2_S:
check_cp1_64bitmode(ctx);
{
TCGv_i32 fp0 = tcg_temp_new_i32();
TCGv_i32 fp1 = tcg_temp_new_i32();
gen_load_fpr32(fp0, fs);
gen_load_fpr32(fp1, ft);
gen_helper_float_rsqrt2_s(fp0, fp0, fp1);
tcg_temp_free_i32(fp1);
gen_store_fpr32(fp0, fd);
tcg_temp_free_i32(fp0);
}
opn = "rsqrt2.s";
break;
case OPC_CVT_D_S:
check_cp1_registers(ctx, fd);
{
TCGv_i32 fp32 = tcg_temp_new_i32();
TCGv_i64 fp64 = tcg_temp_new_i64();
gen_load_fpr32(fp32, fs);
gen_helper_float_cvtd_s(fp64, fp32);
tcg_temp_free_i32(fp32);
gen_store_fpr64(ctx, fp64, fd);
tcg_temp_free_i64(fp64);
}
opn = "cvt.d.s";
break;
case OPC_CVT_W_S:
{
TCGv_i32 fp0 = tcg_temp_new_i32();
gen_load_fpr32(fp0, fs);
gen_helper_float_cvtw_s(fp0, fp0);
gen_store_fpr32(fp0, fd);
tcg_temp_free_i32(fp0);
}
opn = "cvt.w.s";
break;
case OPC_CVT_L_S:
check_cp1_64bitmode(ctx);
{
TCGv_i32 fp32 = tcg_temp_new_i32();
TCGv_i64 fp64 = tcg_temp_new_i64();
gen_load_fpr32(fp32, fs);
gen_helper_float_cvtl_s(fp64, fp32);
tcg_temp_free_i32(fp32);
gen_store_fpr64(ctx, fp64, fd);
tcg_temp_free_i64(fp64);
}
opn = "cvt.l.s";
break;
case OPC_CVT_PS_S:
check_cp1_64bitmode(ctx);
{
TCGv_i64 fp64 = tcg_temp_new_i64();
TCGv_i32 fp32_0 = tcg_temp_new_i32();
TCGv_i32 fp32_1 = tcg_temp_new_i32();
gen_load_fpr32(fp32_0, fs);
gen_load_fpr32(fp32_1, ft);
tcg_gen_concat_i32_i64(fp64, fp32_0, fp32_1);
tcg_temp_free_i32(fp32_1);
tcg_temp_free_i32(fp32_0);
gen_store_fpr64(ctx, fp64, fd);
tcg_temp_free_i64(fp64);
}
opn = "cvt.ps.s";
break;
case OPC_CMP_F_S:
case OPC_CMP_UN_S:
case OPC_CMP_EQ_S:
case OPC_CMP_UEQ_S:
case OPC_CMP_OLT_S:
case OPC_CMP_ULT_S:
case OPC_CMP_OLE_S:
case OPC_CMP_ULE_S:
case OPC_CMP_SF_S:
case OPC_CMP_NGLE_S:
case OPC_CMP_SEQ_S:
case OPC_CMP_NGL_S:
case OPC_CMP_LT_S:
case OPC_CMP_NGE_S:
case OPC_CMP_LE_S:
case OPC_CMP_NGT_S:
if (ctx->opcode & (1 << 6)) {
gen_cmpabs_s(ctx, func-48, ft, fs, cc);
opn = condnames_abs[func-48];
} else {
gen_cmp_s(ctx, func-48, ft, fs, cc);
opn = condnames[func-48];
}
break;
case OPC_ADD_D:
check_cp1_registers(ctx, fs | ft | fd);
{
TCGv_i64 fp0 = tcg_temp_new_i64();
TCGv_i64 fp1 = tcg_temp_new_i64();
gen_load_fpr64(ctx, fp0, fs);
gen_load_fpr64(ctx, fp1, ft);
gen_helper_float_add_d(fp0, fp0, fp1);
tcg_temp_free_i64(fp1);
gen_store_fpr64(ctx, fp0, fd);
tcg_temp_free_i64(fp0);
}
opn = "add.d";
optype = BINOP;
break;
case OPC_SUB_D:
check_cp1_registers(ctx, fs | ft | fd);
{
TCGv_i64 fp0 = tcg_temp_new_i64();
TCGv_i64 fp1 = tcg_temp_new_i64();
gen_load_fpr64(ctx, fp0, fs);
gen_load_fpr64(ctx, fp1, ft);
gen_helper_float_sub_d(fp0, fp0, fp1);
tcg_temp_free_i64(fp1);
gen_store_fpr64(ctx, fp0, fd);
tcg_temp_free_i64(fp0);
}
opn = "sub.d";
optype = BINOP;
break;
case OPC_MUL_D:
check_cp1_registers(ctx, fs | ft | fd);
{
TCGv_i64 fp0 = tcg_temp_new_i64();
TCGv_i64 fp1 = tcg_temp_new_i64();
gen_load_fpr64(ctx, fp0, fs);
gen_load_fpr64(ctx, fp1, ft);
gen_helper_float_mul_d(fp0, fp0, fp1);
tcg_temp_free_i64(fp1);
gen_store_fpr64(ctx, fp0, fd);
tcg_temp_free_i64(fp0);
}
opn = "mul.d";
optype = BINOP;
break;
case OPC_DIV_D:
check_cp1_registers(ctx, fs | ft | fd);
{
TCGv_i64 fp0 = tcg_temp_new_i64();
TCGv_i64 fp1 = tcg_temp_new_i64();
gen_load_fpr64(ctx, fp0, fs);
gen_load_fpr64(ctx, fp1, ft);
gen_helper_float_div_d(fp0, fp0, fp1);
tcg_temp_free_i64(fp1);
gen_store_fpr64(ctx, fp0, fd);
tcg_temp_free_i64(fp0);
}
opn = "div.d";
optype = BINOP;
break;
case OPC_SQRT_D:
check_cp1_registers(ctx, fs | fd);
{
TCGv_i64 fp0 = tcg_temp_new_i64();
gen_load_fpr64(ctx, fp0, fs);
gen_helper_float_sqrt_d(fp0, fp0);
gen_store_fpr64(ctx, fp0, fd);
tcg_temp_free_i64(fp0);
}
opn = "sqrt.d";
break;
case OPC_ABS_D:
check_cp1_registers(ctx, fs | fd);
{
TCGv_i64 fp0 = tcg_temp_new_i64();
gen_load_fpr64(ctx, fp0, fs);
gen_helper_float_abs_d(fp0, fp0);
gen_store_fpr64(ctx, fp0, fd);
tcg_temp_free_i64(fp0);
}
opn = "abs.d";
break;
case OPC_MOV_D:
check_cp1_registers(ctx, fs | fd);
{
TCGv_i64 fp0 = tcg_temp_new_i64();
gen_load_fpr64(ctx, fp0, fs);
gen_store_fpr64(ctx, fp0, fd);
tcg_temp_free_i64(fp0);
}
opn = "mov.d";
break;
case OPC_NEG_D:
check_cp1_registers(ctx, fs | fd);
{
TCGv_i64 fp0 = tcg_temp_new_i64();
gen_load_fpr64(ctx, fp0, fs);
gen_helper_float_chs_d(fp0, fp0);
gen_store_fpr64(ctx, fp0, fd);
tcg_temp_free_i64(fp0);
}
opn = "neg.d";
break;
case OPC_ROUND_L_D:
check_cp1_64bitmode(ctx);
{
TCGv_i64 fp0 = tcg_temp_new_i64();
gen_load_fpr64(ctx, fp0, fs);
gen_helper_float_roundl_d(fp0, fp0);
gen_store_fpr64(ctx, fp0, fd);
tcg_temp_free_i64(fp0);
}
opn = "round.l.d";
break;
case OPC_TRUNC_L_D:
check_cp1_64bitmode(ctx);
{
TCGv_i64 fp0 = tcg_temp_new_i64();
gen_load_fpr64(ctx, fp0, fs);
gen_helper_float_truncl_d(fp0, fp0);
gen_store_fpr64(ctx, fp0, fd);
tcg_temp_free_i64(fp0);
}
opn = "trunc.l.d";
break;
case OPC_CEIL_L_D:
check_cp1_64bitmode(ctx);
{
TCGv_i64 fp0 = tcg_temp_new_i64();
gen_load_fpr64(ctx, fp0, fs);
gen_helper_float_ceill_d(fp0, fp0);
gen_store_fpr64(ctx, fp0, fd);
tcg_temp_free_i64(fp0);
}
opn = "ceil.l.d";
break;
case OPC_FLOOR_L_D:
check_cp1_64bitmode(ctx);
{
TCGv_i64 fp0 = tcg_temp_new_i64();
gen_load_fpr64(ctx, fp0, fs);
gen_helper_float_floorl_d(fp0, fp0);
gen_store_fpr64(ctx, fp0, fd);
tcg_temp_free_i64(fp0);
}
opn = "floor.l.d";
break;
case OPC_ROUND_W_D:
check_cp1_registers(ctx, fs);
{
TCGv_i32 fp32 = tcg_temp_new_i32();
TCGv_i64 fp64 = tcg_temp_new_i64();
gen_load_fpr64(ctx, fp64, fs);
gen_helper_float_roundw_d(fp32, fp64);
tcg_temp_free_i64(fp64);
gen_store_fpr32(fp32, fd);
tcg_temp_free_i32(fp32);
}
opn = "round.w.d";
break;
case OPC_TRUNC_W_D:
check_cp1_registers(ctx, fs);
{
TCGv_i32 fp32 = tcg_temp_new_i32();
TCGv_i64 fp64 = tcg_temp_new_i64();
gen_load_fpr64(ctx, fp64, fs);
gen_helper_float_truncw_d(fp32, fp64);
tcg_temp_free_i64(fp64);
gen_store_fpr32(fp32, fd);
tcg_temp_free_i32(fp32);
}
opn = "trunc.w.d";
break;
case OPC_CEIL_W_D:
check_cp1_registers(ctx, fs);
{
TCGv_i32 fp32 = tcg_temp_new_i32();
TCGv_i64 fp64 = tcg_temp_new_i64();
gen_load_fpr64(ctx, fp64, fs);
gen_helper_float_ceilw_d(fp32, fp64);
tcg_temp_free_i64(fp64);
gen_store_fpr32(fp32, fd);
tcg_temp_free_i32(fp32);
}
opn = "ceil.w.d";
break;
case OPC_FLOOR_W_D:
check_cp1_registers(ctx, fs);
{
TCGv_i32 fp32 = tcg_temp_new_i32();
TCGv_i64 fp64 = tcg_temp_new_i64();
gen_load_fpr64(ctx, fp64, fs);
gen_helper_float_floorw_d(fp32, fp64);
tcg_temp_free_i64(fp64);
gen_store_fpr32(fp32, fd);
tcg_temp_free_i32(fp32);
}
opn = "floor.w.d";
break;
case OPC_MOVCF_D:
gen_movcf_d(ctx, fs, fd, (ft >> 2) & 0x7, ft & 0x1);
opn = "movcf.d";
break;
case OPC_MOVZ_D:
{
int l1 = gen_new_label();
TCGv_i64 fp0;
if (ft != 0) {
tcg_gen_brcondi_tl(TCG_COND_NE, cpu_gpr[ft], 0, l1);
}
fp0 = tcg_temp_new_i64();
gen_load_fpr64(ctx, fp0, fs);
gen_store_fpr64(ctx, fp0, fd);
tcg_temp_free_i64(fp0);
gen_set_label(l1);
}
opn = "movz.d";
break;
case OPC_MOVN_D:
{
int l1 = gen_new_label();
TCGv_i64 fp0;
if (ft != 0) {
tcg_gen_brcondi_tl(TCG_COND_EQ, cpu_gpr[ft], 0, l1);
fp0 = tcg_temp_new_i64();
gen_load_fpr64(ctx, fp0, fs);
gen_store_fpr64(ctx, fp0, fd);
tcg_temp_free_i64(fp0);
gen_set_label(l1);
}
}
opn = "movn.d";
break;
case OPC_RECIP_D:
check_cp1_64bitmode(ctx);
{
TCGv_i64 fp0 = tcg_temp_new_i64();
gen_load_fpr64(ctx, fp0, fs);
gen_helper_float_recip_d(fp0, fp0);
gen_store_fpr64(ctx, fp0, fd);
tcg_temp_free_i64(fp0);
}
opn = "recip.d";
break;
case OPC_RSQRT_D:
check_cp1_64bitmode(ctx);
{
TCGv_i64 fp0 = tcg_temp_new_i64();
gen_load_fpr64(ctx, fp0, fs);
gen_helper_float_rsqrt_d(fp0, fp0);
gen_store_fpr64(ctx, fp0, fd);
tcg_temp_free_i64(fp0);
}
opn = "rsqrt.d";
break;
case OPC_RECIP2_D:
check_cp1_64bitmode(ctx);
{
TCGv_i64 fp0 = tcg_temp_new_i64();
TCGv_i64 fp1 = tcg_temp_new_i64();
gen_load_fpr64(ctx, fp0, fs);
gen_load_fpr64(ctx, fp1, ft);
gen_helper_float_recip2_d(fp0, fp0, fp1);
tcg_temp_free_i64(fp1);
gen_store_fpr64(ctx, fp0, fd);
tcg_temp_free_i64(fp0);
}
opn = "recip2.d";
break;
case OPC_RECIP1_D:
check_cp1_64bitmode(ctx);
{
TCGv_i64 fp0 = tcg_temp_new_i64();
gen_load_fpr64(ctx, fp0, fs);
gen_helper_float_recip1_d(fp0, fp0);
gen_store_fpr64(ctx, fp0, fd);
tcg_temp_free_i64(fp0);
}
opn = "recip1.d";
break;
case OPC_RSQRT1_D:
check_cp1_64bitmode(ctx);
{
TCGv_i64 fp0 = tcg_temp_new_i64();
gen_load_fpr64(ctx, fp0, fs);
gen_helper_float_rsqrt1_d(fp0, fp0);
gen_store_fpr64(ctx, fp0, fd);
tcg_temp_free_i64(fp0);
}
opn = "rsqrt1.d";
break;
case OPC_RSQRT2_D:
check_cp1_64bitmode(ctx);
{
TCGv_i64 fp0 = tcg_temp_new_i64();
TCGv_i64 fp1 = tcg_temp_new_i64();
gen_load_fpr64(ctx, fp0, fs);
gen_load_fpr64(ctx, fp1, ft);
gen_helper_float_rsqrt2_d(fp0, fp0, fp1);
tcg_temp_free_i64(fp1);
gen_store_fpr64(ctx, fp0, fd);
tcg_temp_free_i64(fp0);
}
opn = "rsqrt2.d";
break;
case OPC_CMP_F_D:
case OPC_CMP_UN_D:
case OPC_CMP_EQ_D:
case OPC_CMP_UEQ_D:
case OPC_CMP_OLT_D:
case OPC_CMP_ULT_D:
case OPC_CMP_OLE_D:
case OPC_CMP_ULE_D:
case OPC_CMP_SF_D:
case OPC_CMP_NGLE_D:
case OPC_CMP_SEQ_D:
case OPC_CMP_NGL_D:
case OPC_CMP_LT_D:
case OPC_CMP_NGE_D:
case OPC_CMP_LE_D:
case OPC_CMP_NGT_D:
if (ctx->opcode & (1 << 6)) {
gen_cmpabs_d(ctx, func-48, ft, fs, cc);
opn = condnames_abs[func-48];
} else {
gen_cmp_d(ctx, func-48, ft, fs, cc);
opn = condnames[func-48];
}
break;
case OPC_CVT_S_D:
check_cp1_registers(ctx, fs);
{
TCGv_i32 fp32 = tcg_temp_new_i32();
TCGv_i64 fp64 = tcg_temp_new_i64();
gen_load_fpr64(ctx, fp64, fs);
gen_helper_float_cvts_d(fp32, fp64);
tcg_temp_free_i64(fp64);
gen_store_fpr32(fp32, fd);
tcg_temp_free_i32(fp32);
}
opn = "cvt.s.d";
break;
case OPC_CVT_W_D:
check_cp1_registers(ctx, fs);
{
TCGv_i32 fp32 = tcg_temp_new_i32();
TCGv_i64 fp64 = tcg_temp_new_i64();
gen_load_fpr64(ctx, fp64, fs);
gen_helper_float_cvtw_d(fp32, fp64);
tcg_temp_free_i64(fp64);
gen_store_fpr32(fp32, fd);
tcg_temp_free_i32(fp32);
}
opn = "cvt.w.d";
break;
case OPC_CVT_L_D:
check_cp1_64bitmode(ctx);
{
TCGv_i64 fp0 = tcg_temp_new_i64();
gen_load_fpr64(ctx, fp0, fs);
gen_helper_float_cvtl_d(fp0, fp0);
gen_store_fpr64(ctx, fp0, fd);
tcg_temp_free_i64(fp0);
}
opn = "cvt.l.d";
break;
case OPC_CVT_S_W:
{
TCGv_i32 fp0 = tcg_temp_new_i32();
gen_load_fpr32(fp0, fs);
gen_helper_float_cvts_w(fp0, fp0);
gen_store_fpr32(fp0, fd);
tcg_temp_free_i32(fp0);
}
opn = "cvt.s.w";
break;
case OPC_CVT_D_W:
check_cp1_registers(ctx, fd);
{
TCGv_i32 fp32 = tcg_temp_new_i32();
TCGv_i64 fp64 = tcg_temp_new_i64();
gen_load_fpr32(fp32, fs);
gen_helper_float_cvtd_w(fp64, fp32);
tcg_temp_free_i32(fp32);
gen_store_fpr64(ctx, fp64, fd);
tcg_temp_free_i64(fp64);
}
opn = "cvt.d.w";
break;
case OPC_CVT_S_L:
check_cp1_64bitmode(ctx);
{
TCGv_i32 fp32 = tcg_temp_new_i32();
TCGv_i64 fp64 = tcg_temp_new_i64();
gen_load_fpr64(ctx, fp64, fs);
gen_helper_float_cvts_l(fp32, fp64);
tcg_temp_free_i64(fp64);
gen_store_fpr32(fp32, fd);
tcg_temp_free_i32(fp32);
}
opn = "cvt.s.l";
break;
case OPC_CVT_D_L:
check_cp1_64bitmode(ctx);
{
TCGv_i64 fp0 = tcg_temp_new_i64();
gen_load_fpr64(ctx, fp0, fs);
gen_helper_float_cvtd_l(fp0, fp0);
gen_store_fpr64(ctx, fp0, fd);
tcg_temp_free_i64(fp0);
}
opn = "cvt.d.l";
break;
case OPC_CVT_PS_PW:
check_cp1_64bitmode(ctx);
{
TCGv_i64 fp0 = tcg_temp_new_i64();
gen_load_fpr64(ctx, fp0, fs);
gen_helper_float_cvtps_pw(fp0, fp0);
gen_store_fpr64(ctx, fp0, fd);
tcg_temp_free_i64(fp0);
}
opn = "cvt.ps.pw";
break;
case OPC_ADD_PS:
check_cp1_64bitmode(ctx);
{
TCGv_i64 fp0 = tcg_temp_new_i64();
TCGv_i64 fp1 = tcg_temp_new_i64();
gen_load_fpr64(ctx, fp0, fs);
gen_load_fpr64(ctx, fp1, ft);
gen_helper_float_add_ps(fp0, fp0, fp1);
tcg_temp_free_i64(fp1);
gen_store_fpr64(ctx, fp0, fd);
tcg_temp_free_i64(fp0);
}
opn = "add.ps";
break;
case OPC_SUB_PS:
check_cp1_64bitmode(ctx);
{
TCGv_i64 fp0 = tcg_temp_new_i64();
TCGv_i64 fp1 = tcg_temp_new_i64();
gen_load_fpr64(ctx, fp0, fs);
gen_load_fpr64(ctx, fp1, ft);
gen_helper_float_sub_ps(fp0, fp0, fp1);
tcg_temp_free_i64(fp1);
gen_store_fpr64(ctx, fp0, fd);
tcg_temp_free_i64(fp0);
}
opn = "sub.ps";
break;
case OPC_MUL_PS:
check_cp1_64bitmode(ctx);
{
TCGv_i64 fp0 = tcg_temp_new_i64();
TCGv_i64 fp1 = tcg_temp_new_i64();
gen_load_fpr64(ctx, fp0, fs);
gen_load_fpr64(ctx, fp1, ft);
gen_helper_float_mul_ps(fp0, fp0, fp1);
tcg_temp_free_i64(fp1);
gen_store_fpr64(ctx, fp0, fd);
tcg_temp_free_i64(fp0);
}
opn = "mul.ps";
break;
case OPC_ABS_PS:
check_cp1_64bitmode(ctx);
{
TCGv_i64 fp0 = tcg_temp_new_i64();
gen_load_fpr64(ctx, fp0, fs);
gen_helper_float_abs_ps(fp0, fp0);
gen_store_fpr64(ctx, fp0, fd);
tcg_temp_free_i64(fp0);
}
opn = "abs.ps";
break;
case OPC_MOV_PS:
check_cp1_64bitmode(ctx);
{
TCGv_i64 fp0 = tcg_temp_new_i64();
gen_load_fpr64(ctx, fp0, fs);
gen_store_fpr64(ctx, fp0, fd);
tcg_temp_free_i64(fp0);
}
opn = "mov.ps";
break;
case OPC_NEG_PS:
check_cp1_64bitmode(ctx);
{
TCGv_i64 fp0 = tcg_temp_new_i64();
gen_load_fpr64(ctx, fp0, fs);
gen_helper_float_chs_ps(fp0, fp0);
gen_store_fpr64(ctx, fp0, fd);
tcg_temp_free_i64(fp0);
}
opn = "neg.ps";
break;
case OPC_MOVCF_PS:
check_cp1_64bitmode(ctx);
gen_movcf_ps(fs, fd, (ft >> 2) & 0x7, ft & 0x1);
opn = "movcf.ps";
break;
case OPC_MOVZ_PS:
check_cp1_64bitmode(ctx);
{
int l1 = gen_new_label();
TCGv_i64 fp0;
if (ft != 0)
tcg_gen_brcondi_tl(TCG_COND_NE, cpu_gpr[ft], 0, l1);
fp0 = tcg_temp_new_i64();
gen_load_fpr64(ctx, fp0, fs);
gen_store_fpr64(ctx, fp0, fd);
tcg_temp_free_i64(fp0);
gen_set_label(l1);
}
opn = "movz.ps";
break;
case OPC_MOVN_PS:
check_cp1_64bitmode(ctx);
{
int l1 = gen_new_label();
TCGv_i64 fp0;
if (ft != 0) {
tcg_gen_brcondi_tl(TCG_COND_EQ, cpu_gpr[ft], 0, l1);
fp0 = tcg_temp_new_i64();
gen_load_fpr64(ctx, fp0, fs);
gen_store_fpr64(ctx, fp0, fd);
tcg_temp_free_i64(fp0);
gen_set_label(l1);
}
}
opn = "movn.ps";
break;
case OPC_ADDR_PS:
check_cp1_64bitmode(ctx);
{
TCGv_i64 fp0 = tcg_temp_new_i64();
TCGv_i64 fp1 = tcg_temp_new_i64();
gen_load_fpr64(ctx, fp0, ft);
gen_load_fpr64(ctx, fp1, fs);
gen_helper_float_addr_ps(fp0, fp0, fp1);
tcg_temp_free_i64(fp1);
gen_store_fpr64(ctx, fp0, fd);
tcg_temp_free_i64(fp0);
}
opn = "addr.ps";
break;
case OPC_MULR_PS:
check_cp1_64bitmode(ctx);
{
TCGv_i64 fp0 = tcg_temp_new_i64();
TCGv_i64 fp1 = tcg_temp_new_i64();
gen_load_fpr64(ctx, fp0, ft);
gen_load_fpr64(ctx, fp1, fs);
gen_helper_float_mulr_ps(fp0, fp0, fp1);
tcg_temp_free_i64(fp1);
gen_store_fpr64(ctx, fp0, fd);
tcg_temp_free_i64(fp0);
}
opn = "mulr.ps";
break;
case OPC_RECIP2_PS:
check_cp1_64bitmode(ctx);
{
TCGv_i64 fp0 = tcg_temp_new_i64();
TCGv_i64 fp1 = tcg_temp_new_i64();
gen_load_fpr64(ctx, fp0, fs);
gen_load_fpr64(ctx, fp1, fd);
gen_helper_float_recip2_ps(fp0, fp0, fp1);
tcg_temp_free_i64(fp1);
gen_store_fpr64(ctx, fp0, fd);
tcg_temp_free_i64(fp0);
}
opn = "recip2.ps";
break;
case OPC_RECIP1_PS:
check_cp1_64bitmode(ctx);
{
TCGv_i64 fp0 = tcg_temp_new_i64();
gen_load_fpr64(ctx, fp0, fs);
gen_helper_float_recip1_ps(fp0, fp0);
gen_store_fpr64(ctx, fp0, fd);
tcg_temp_free_i64(fp0);
}
opn = "recip1.ps";
break;
case OPC_RSQRT1_PS:
check_cp1_64bitmode(ctx);
{
TCGv_i64 fp0 = tcg_temp_new_i64();
gen_load_fpr64(ctx, fp0, fs);
gen_helper_float_rsqrt1_ps(fp0, fp0);
gen_store_fpr64(ctx, fp0, fd);
tcg_temp_free_i64(fp0);
}
opn = "rsqrt1.ps";
break;
case OPC_RSQRT2_PS:
check_cp1_64bitmode(ctx);
{
TCGv_i64 fp0 = tcg_temp_new_i64();
TCGv_i64 fp1 = tcg_temp_new_i64();
gen_load_fpr64(ctx, fp0, fs);
gen_load_fpr64(ctx, fp1, ft);
gen_helper_float_rsqrt2_ps(fp0, fp0, fp1);
tcg_temp_free_i64(fp1);
gen_store_fpr64(ctx, fp0, fd);
tcg_temp_free_i64(fp0);
}
opn = "rsqrt2.ps";
break;
case OPC_CVT_S_PU:
check_cp1_64bitmode(ctx);
{
TCGv_i32 fp0 = tcg_temp_new_i32();
gen_load_fpr32h(fp0, fs);
gen_helper_float_cvts_pu(fp0, fp0);
gen_store_fpr32(fp0, fd);
tcg_temp_free_i32(fp0);
}
opn = "cvt.s.pu";
break;
case OPC_CVT_PW_PS:
check_cp1_64bitmode(ctx);
{
TCGv_i64 fp0 = tcg_temp_new_i64();
gen_load_fpr64(ctx, fp0, fs);
gen_helper_float_cvtpw_ps(fp0, fp0);
gen_store_fpr64(ctx, fp0, fd);
tcg_temp_free_i64(fp0);
}
opn = "cvt.pw.ps";
break;
case OPC_CVT_S_PL:
check_cp1_64bitmode(ctx);
{
TCGv_i32 fp0 = tcg_temp_new_i32();
gen_load_fpr32(fp0, fs);
gen_helper_float_cvts_pl(fp0, fp0);
gen_store_fpr32(fp0, fd);
tcg_temp_free_i32(fp0);
}
opn = "cvt.s.pl";
break;
case OPC_PLL_PS:
check_cp1_64bitmode(ctx);
{
TCGv_i32 fp0 = tcg_temp_new_i32();
TCGv_i32 fp1 = tcg_temp_new_i32();
gen_load_fpr32(fp0, fs);
gen_load_fpr32(fp1, ft);
gen_store_fpr32h(fp0, fd);
gen_store_fpr32(fp1, fd);
tcg_temp_free_i32(fp0);
tcg_temp_free_i32(fp1);
}
opn = "pll.ps";
break;
case OPC_PLU_PS:
check_cp1_64bitmode(ctx);
{
TCGv_i32 fp0 = tcg_temp_new_i32();
TCGv_i32 fp1 = tcg_temp_new_i32();
gen_load_fpr32(fp0, fs);
gen_load_fpr32h(fp1, ft);
gen_store_fpr32(fp1, fd);
gen_store_fpr32h(fp0, fd);
tcg_temp_free_i32(fp0);
tcg_temp_free_i32(fp1);
}
opn = "plu.ps";
break;
case OPC_PUL_PS:
check_cp1_64bitmode(ctx);
{
TCGv_i32 fp0 = tcg_temp_new_i32();
TCGv_i32 fp1 = tcg_temp_new_i32();
gen_load_fpr32h(fp0, fs);
gen_load_fpr32(fp1, ft);
gen_store_fpr32(fp1, fd);
gen_store_fpr32h(fp0, fd);
tcg_temp_free_i32(fp0);
tcg_temp_free_i32(fp1);
}
opn = "pul.ps";
break;
case OPC_PUU_PS:
check_cp1_64bitmode(ctx);
{
TCGv_i32 fp0 = tcg_temp_new_i32();
TCGv_i32 fp1 = tcg_temp_new_i32();
gen_load_fpr32h(fp0, fs);
gen_load_fpr32h(fp1, ft);
gen_store_fpr32(fp1, fd);
gen_store_fpr32h(fp0, fd);
tcg_temp_free_i32(fp0);
tcg_temp_free_i32(fp1);
}
opn = "puu.ps";
break;
case OPC_CMP_F_PS:
case OPC_CMP_UN_PS:
case OPC_CMP_EQ_PS:
case OPC_CMP_UEQ_PS:
case OPC_CMP_OLT_PS:
case OPC_CMP_ULT_PS:
case OPC_CMP_OLE_PS:
case OPC_CMP_ULE_PS:
case OPC_CMP_SF_PS:
case OPC_CMP_NGLE_PS:
case OPC_CMP_SEQ_PS:
case OPC_CMP_NGL_PS:
case OPC_CMP_LT_PS:
case OPC_CMP_NGE_PS:
case OPC_CMP_LE_PS:
case OPC_CMP_NGT_PS:
if (ctx->opcode & (1 << 6)) {
gen_cmpabs_ps(ctx, func-48, ft, fs, cc);
opn = condnames_abs[func-48];
} else {
gen_cmp_ps(ctx, func-48, ft, fs, cc);
opn = condnames[func-48];
}
break;
default:
MIPS_INVAL(opn);
generate_exception (ctx, EXCP_RI);
return;
}
switch (optype) {
case BINOP:
MIPS_DEBUG("%s %s, %s, %s", opn, fregnames[fd], fregnames[fs], fregnames[ft]);
break;
case CMPOP:
MIPS_DEBUG("%s %s,%s", opn, fregnames[fs], fregnames[ft]);
break;
default:
MIPS_DEBUG("%s %s,%s", opn, fregnames[fd], fregnames[fs]);
break;
}
}
/* Coprocessor 3 (FPU) */
static void gen_flt3_ldst (DisasContext *ctx, uint32_t opc,
int fd, int fs, int base, int index)
{
const char *opn = "extended float load/store";
int store = 0;
TCGv t0 = tcg_temp_new();
if (base == 0) {
gen_load_gpr(t0, index);
} else if (index == 0) {
gen_load_gpr(t0, base);
} else {
gen_load_gpr(t0, index);
gen_op_addr_add(ctx, t0, cpu_gpr[base], t0);
}
/* Don't do NOP if destination is zero: we must perform the actual
memory access. */
save_cpu_state(ctx, 0);
switch (opc) {
case OPC_LWXC1:
check_cop1x(ctx);
{
TCGv_i32 fp0 = tcg_temp_new_i32();
tcg_gen_qemu_ld32s(t0, t0, ctx->mem_idx);
tcg_gen_trunc_tl_i32(fp0, t0);
gen_store_fpr32(fp0, fd);
tcg_temp_free_i32(fp0);
}
opn = "lwxc1";
break;
case OPC_LDXC1:
check_cop1x(ctx);
check_cp1_registers(ctx, fd);
{
TCGv_i64 fp0 = tcg_temp_new_i64();
tcg_gen_qemu_ld64(fp0, t0, ctx->mem_idx);
gen_store_fpr64(ctx, fp0, fd);
tcg_temp_free_i64(fp0);
}
opn = "ldxc1";
break;
case OPC_LUXC1:
check_cp1_64bitmode(ctx);
tcg_gen_andi_tl(t0, t0, ~0x7);
{
TCGv_i64 fp0 = tcg_temp_new_i64();
tcg_gen_qemu_ld64(fp0, t0, ctx->mem_idx);
gen_store_fpr64(ctx, fp0, fd);
tcg_temp_free_i64(fp0);
}
opn = "luxc1";
break;
case OPC_SWXC1:
check_cop1x(ctx);
{
TCGv_i32 fp0 = tcg_temp_new_i32();
TCGv t1 = tcg_temp_new();
gen_load_fpr32(fp0, fs);
tcg_gen_extu_i32_tl(t1, fp0);
tcg_gen_qemu_st32(t1, t0, ctx->mem_idx);
tcg_temp_free_i32(fp0);
tcg_temp_free(t1);
}
opn = "swxc1";
store = 1;
break;
case OPC_SDXC1:
check_cop1x(ctx);
check_cp1_registers(ctx, fs);
{
TCGv_i64 fp0 = tcg_temp_new_i64();
gen_load_fpr64(ctx, fp0, fs);
tcg_gen_qemu_st64(fp0, t0, ctx->mem_idx);
tcg_temp_free_i64(fp0);
}
opn = "sdxc1";
store = 1;
break;
case OPC_SUXC1:
check_cp1_64bitmode(ctx);
tcg_gen_andi_tl(t0, t0, ~0x7);
{
TCGv_i64 fp0 = tcg_temp_new_i64();
gen_load_fpr64(ctx, fp0, fs);
tcg_gen_qemu_st64(fp0, t0, ctx->mem_idx);
tcg_temp_free_i64(fp0);
}
opn = "suxc1";
store = 1;
break;
}
tcg_temp_free(t0);
MIPS_DEBUG("%s %s, %s(%s)", opn, fregnames[store ? fs : fd],
regnames[index], regnames[base]);
}
static void gen_flt3_arith (DisasContext *ctx, uint32_t opc,
int fd, int fr, int fs, int ft)
{
const char *opn = "flt3_arith";
switch (opc) {
case OPC_ALNV_PS:
check_cp1_64bitmode(ctx);
{
TCGv t0 = tcg_temp_local_new();
TCGv_i32 fp = tcg_temp_new_i32();
TCGv_i32 fph = tcg_temp_new_i32();
int l1 = gen_new_label();
int l2 = gen_new_label();
gen_load_gpr(t0, fr);
tcg_gen_andi_tl(t0, t0, 0x7);
tcg_gen_brcondi_tl(TCG_COND_NE, t0, 0, l1);
gen_load_fpr32(fp, fs);
gen_load_fpr32h(fph, fs);
gen_store_fpr32(fp, fd);
gen_store_fpr32h(fph, fd);
tcg_gen_br(l2);
gen_set_label(l1);
tcg_gen_brcondi_tl(TCG_COND_NE, t0, 4, l2);
tcg_temp_free(t0);
#ifdef TARGET_WORDS_BIGENDIAN
gen_load_fpr32(fp, fs);
gen_load_fpr32h(fph, ft);
gen_store_fpr32h(fp, fd);
gen_store_fpr32(fph, fd);
#else
gen_load_fpr32h(fph, fs);
gen_load_fpr32(fp, ft);
gen_store_fpr32(fph, fd);
gen_store_fpr32h(fp, fd);
#endif
gen_set_label(l2);
tcg_temp_free_i32(fp);
tcg_temp_free_i32(fph);
}
opn = "alnv.ps";
break;
case OPC_MADD_S:
check_cop1x(ctx);
{
TCGv_i32 fp0 = tcg_temp_new_i32();
TCGv_i32 fp1 = tcg_temp_new_i32();
TCGv_i32 fp2 = tcg_temp_new_i32();
gen_load_fpr32(fp0, fs);
gen_load_fpr32(fp1, ft);
gen_load_fpr32(fp2, fr);
gen_helper_float_muladd_s(fp2, fp0, fp1, fp2);
tcg_temp_free_i32(fp0);
tcg_temp_free_i32(fp1);
gen_store_fpr32(fp2, fd);
tcg_temp_free_i32(fp2);
}
opn = "madd.s";
break;
case OPC_MADD_D:
check_cop1x(ctx);
check_cp1_registers(ctx, fd | fs | ft | fr);
{
TCGv_i64 fp0 = tcg_temp_new_i64();
TCGv_i64 fp1 = tcg_temp_new_i64();
TCGv_i64 fp2 = tcg_temp_new_i64();
gen_load_fpr64(ctx, fp0, fs);
gen_load_fpr64(ctx, fp1, ft);
gen_load_fpr64(ctx, fp2, fr);
gen_helper_float_muladd_d(fp2, fp0, fp1, fp2);
tcg_temp_free_i64(fp0);
tcg_temp_free_i64(fp1);
gen_store_fpr64(ctx, fp2, fd);
tcg_temp_free_i64(fp2);
}
opn = "madd.d";
break;
case OPC_MADD_PS:
check_cp1_64bitmode(ctx);
{
TCGv_i64 fp0 = tcg_temp_new_i64();
TCGv_i64 fp1 = tcg_temp_new_i64();
TCGv_i64 fp2 = tcg_temp_new_i64();
gen_load_fpr64(ctx, fp0, fs);
gen_load_fpr64(ctx, fp1, ft);
gen_load_fpr64(ctx, fp2, fr);
gen_helper_float_muladd_ps(fp2, fp0, fp1, fp2);
tcg_temp_free_i64(fp0);
tcg_temp_free_i64(fp1);
gen_store_fpr64(ctx, fp2, fd);
tcg_temp_free_i64(fp2);
}
opn = "madd.ps";
break;
case OPC_MSUB_S:
check_cop1x(ctx);
{
TCGv_i32 fp0 = tcg_temp_new_i32();
TCGv_i32 fp1 = tcg_temp_new_i32();
TCGv_i32 fp2 = tcg_temp_new_i32();
gen_load_fpr32(fp0, fs);
gen_load_fpr32(fp1, ft);
gen_load_fpr32(fp2, fr);
gen_helper_float_mulsub_s(fp2, fp0, fp1, fp2);
tcg_temp_free_i32(fp0);
tcg_temp_free_i32(fp1);
gen_store_fpr32(fp2, fd);
tcg_temp_free_i32(fp2);
}
opn = "msub.s";
break;
case OPC_MSUB_D:
check_cop1x(ctx);
check_cp1_registers(ctx, fd | fs | ft | fr);
{
TCGv_i64 fp0 = tcg_temp_new_i64();
TCGv_i64 fp1 = tcg_temp_new_i64();
TCGv_i64 fp2 = tcg_temp_new_i64();
gen_load_fpr64(ctx, fp0, fs);
gen_load_fpr64(ctx, fp1, ft);
gen_load_fpr64(ctx, fp2, fr);
gen_helper_float_mulsub_d(fp2, fp0, fp1, fp2);
tcg_temp_free_i64(fp0);
tcg_temp_free_i64(fp1);
gen_store_fpr64(ctx, fp2, fd);
tcg_temp_free_i64(fp2);
}
opn = "msub.d";
break;
case OPC_MSUB_PS:
check_cp1_64bitmode(ctx);
{
TCGv_i64 fp0 = tcg_temp_new_i64();
TCGv_i64 fp1 = tcg_temp_new_i64();
TCGv_i64 fp2 = tcg_temp_new_i64();
gen_load_fpr64(ctx, fp0, fs);
gen_load_fpr64(ctx, fp1, ft);
gen_load_fpr64(ctx, fp2, fr);
gen_helper_float_mulsub_ps(fp2, fp0, fp1, fp2);
tcg_temp_free_i64(fp0);
tcg_temp_free_i64(fp1);
gen_store_fpr64(ctx, fp2, fd);
tcg_temp_free_i64(fp2);
}
opn = "msub.ps";
break;
case OPC_NMADD_S:
check_cop1x(ctx);
{
TCGv_i32 fp0 = tcg_temp_new_i32();
TCGv_i32 fp1 = tcg_temp_new_i32();
TCGv_i32 fp2 = tcg_temp_new_i32();
gen_load_fpr32(fp0, fs);
gen_load_fpr32(fp1, ft);
gen_load_fpr32(fp2, fr);
gen_helper_float_nmuladd_s(fp2, fp0, fp1, fp2);
tcg_temp_free_i32(fp0);
tcg_temp_free_i32(fp1);
gen_store_fpr32(fp2, fd);
tcg_temp_free_i32(fp2);
}
opn = "nmadd.s";
break;
case OPC_NMADD_D:
check_cop1x(ctx);
check_cp1_registers(ctx, fd | fs | ft | fr);
{
TCGv_i64 fp0 = tcg_temp_new_i64();
TCGv_i64 fp1 = tcg_temp_new_i64();
TCGv_i64 fp2 = tcg_temp_new_i64();
gen_load_fpr64(ctx, fp0, fs);
gen_load_fpr64(ctx, fp1, ft);
gen_load_fpr64(ctx, fp2, fr);
gen_helper_float_nmuladd_d(fp2, fp0, fp1, fp2);
tcg_temp_free_i64(fp0);
tcg_temp_free_i64(fp1);
gen_store_fpr64(ctx, fp2, fd);
tcg_temp_free_i64(fp2);
}
opn = "nmadd.d";
break;
case OPC_NMADD_PS:
check_cp1_64bitmode(ctx);
{
TCGv_i64 fp0 = tcg_temp_new_i64();
TCGv_i64 fp1 = tcg_temp_new_i64();
TCGv_i64 fp2 = tcg_temp_new_i64();
gen_load_fpr64(ctx, fp0, fs);
gen_load_fpr64(ctx, fp1, ft);
gen_load_fpr64(ctx, fp2, fr);
gen_helper_float_nmuladd_ps(fp2, fp0, fp1, fp2);
tcg_temp_free_i64(fp0);
tcg_temp_free_i64(fp1);
gen_store_fpr64(ctx, fp2, fd);
tcg_temp_free_i64(fp2);
}
opn = "nmadd.ps";
break;
case OPC_NMSUB_S:
check_cop1x(ctx);
{
TCGv_i32 fp0 = tcg_temp_new_i32();
TCGv_i32 fp1 = tcg_temp_new_i32();
TCGv_i32 fp2 = tcg_temp_new_i32();
gen_load_fpr32(fp0, fs);
gen_load_fpr32(fp1, ft);
gen_load_fpr32(fp2, fr);
gen_helper_float_nmulsub_s(fp2, fp0, fp1, fp2);
tcg_temp_free_i32(fp0);
tcg_temp_free_i32(fp1);
gen_store_fpr32(fp2, fd);
tcg_temp_free_i32(fp2);
}
opn = "nmsub.s";
break;
case OPC_NMSUB_D:
check_cop1x(ctx);
check_cp1_registers(ctx, fd | fs | ft | fr);
{
TCGv_i64 fp0 = tcg_temp_new_i64();
TCGv_i64 fp1 = tcg_temp_new_i64();
TCGv_i64 fp2 = tcg_temp_new_i64();
gen_load_fpr64(ctx, fp0, fs);
gen_load_fpr64(ctx, fp1, ft);
gen_load_fpr64(ctx, fp2, fr);
gen_helper_float_nmulsub_d(fp2, fp0, fp1, fp2);
tcg_temp_free_i64(fp0);
tcg_temp_free_i64(fp1);
gen_store_fpr64(ctx, fp2, fd);
tcg_temp_free_i64(fp2);
}
opn = "nmsub.d";
break;
case OPC_NMSUB_PS:
check_cp1_64bitmode(ctx);
{
TCGv_i64 fp0 = tcg_temp_new_i64();
TCGv_i64 fp1 = tcg_temp_new_i64();
TCGv_i64 fp2 = tcg_temp_new_i64();
gen_load_fpr64(ctx, fp0, fs);
gen_load_fpr64(ctx, fp1, ft);
gen_load_fpr64(ctx, fp2, fr);
gen_helper_float_nmulsub_ps(fp2, fp0, fp1, fp2);
tcg_temp_free_i64(fp0);
tcg_temp_free_i64(fp1);
gen_store_fpr64(ctx, fp2, fd);
tcg_temp_free_i64(fp2);
}
opn = "nmsub.ps";
break;
default:
MIPS_INVAL(opn);
generate_exception (ctx, EXCP_RI);
return;
}
MIPS_DEBUG("%s %s, %s, %s, %s", opn, fregnames[fd], fregnames[fr],
fregnames[fs], fregnames[ft]);
}
static void
gen_rdhwr (CPUState *env, DisasContext *ctx, int rt, int rd)
{
TCGv t0;
check_insn(env, ctx, ISA_MIPS32R2);
t0 = tcg_temp_new();
switch (rd) {
case 0:
save_cpu_state(ctx, 1);
gen_helper_rdhwr_cpunum(t0);
gen_store_gpr(t0, rt);
break;
case 1:
save_cpu_state(ctx, 1);
gen_helper_rdhwr_synci_step(t0);
gen_store_gpr(t0, rt);
break;
case 2:
save_cpu_state(ctx, 1);
gen_helper_rdhwr_cc(t0);
gen_store_gpr(t0, rt);
break;
case 3:
save_cpu_state(ctx, 1);
gen_helper_rdhwr_ccres(t0);
gen_store_gpr(t0, rt);
break;
case 29:
#if defined(CONFIG_USER_ONLY)
tcg_gen_ld_tl(t0, cpu_env, offsetof(CPUState, tls_value));
gen_store_gpr(t0, rt);
break;
#else
/* XXX: Some CPUs implement this in hardware.
Not supported yet. */
#endif
default: /* Invalid */
MIPS_INVAL("rdhwr");
generate_exception(ctx, EXCP_RI);
break;
}
tcg_temp_free(t0);
}
static void handle_delay_slot (CPUState *env, DisasContext *ctx,
int insn_bytes)
{
if (ctx->hflags & MIPS_HFLAG_BMASK) {
int proc_hflags = ctx->hflags & MIPS_HFLAG_BMASK;
/* Branches completion */
ctx->hflags &= ~MIPS_HFLAG_BMASK;
ctx->bstate = BS_BRANCH;
save_cpu_state(ctx, 0);
/* FIXME: Need to clear can_do_io. */
switch (proc_hflags & MIPS_HFLAG_BMASK_BASE) {
case MIPS_HFLAG_B:
/* unconditional branch */
MIPS_DEBUG("unconditional branch");
if (proc_hflags & MIPS_HFLAG_BX) {
tcg_gen_xori_i32(hflags, hflags, MIPS_HFLAG_M16);
}
gen_goto_tb(ctx, 0, ctx->btarget);
break;
case MIPS_HFLAG_BL:
/* blikely taken case */
MIPS_DEBUG("blikely branch taken");
gen_goto_tb(ctx, 0, ctx->btarget);
break;
case MIPS_HFLAG_BC:
/* Conditional branch */
MIPS_DEBUG("conditional branch");
{
int l1 = gen_new_label();
tcg_gen_brcondi_tl(TCG_COND_NE, bcond, 0, l1);
gen_goto_tb(ctx, 1, ctx->pc + insn_bytes);
gen_set_label(l1);
gen_goto_tb(ctx, 0, ctx->btarget);
}
break;
case MIPS_HFLAG_BR:
/* unconditional branch to register */
MIPS_DEBUG("branch to register");
if (env->insn_flags & (ASE_MIPS16 | ASE_MICROMIPS)) {
TCGv t0 = tcg_temp_new();
TCGv_i32 t1 = tcg_temp_new_i32();
tcg_gen_andi_tl(t0, btarget, 0x1);
tcg_gen_trunc_tl_i32(t1, t0);
tcg_temp_free(t0);
tcg_gen_andi_i32(hflags, hflags, ~(uint32_t)MIPS_HFLAG_M16);
tcg_gen_shli_i32(t1, t1, MIPS_HFLAG_M16_SHIFT);
tcg_gen_or_i32(hflags, hflags, t1);
tcg_temp_free_i32(t1);
tcg_gen_andi_tl(cpu_PC, btarget, ~(target_ulong)0x1);
} else {
tcg_gen_mov_tl(cpu_PC, btarget);
}
if (ctx->singlestep_enabled) {
save_cpu_state(ctx, 0);
gen_helper_0i(raise_exception, EXCP_DEBUG);
}
tcg_gen_exit_tb(0);
break;
default:
MIPS_DEBUG("unknown branch");
break;
}
}
}
/* ISA extensions (ASEs) */
/* MIPS16 extension to MIPS32 */
/* MIPS16 major opcodes */
enum {
M16_OPC_ADDIUSP = 0x00,
M16_OPC_ADDIUPC = 0x01,
M16_OPC_B = 0x02,
M16_OPC_JAL = 0x03,
M16_OPC_BEQZ = 0x04,
M16_OPC_BNEQZ = 0x05,
M16_OPC_SHIFT = 0x06,
M16_OPC_LD = 0x07,
M16_OPC_RRIA = 0x08,
M16_OPC_ADDIU8 = 0x09,
M16_OPC_SLTI = 0x0a,
M16_OPC_SLTIU = 0x0b,
M16_OPC_I8 = 0x0c,
M16_OPC_LI = 0x0d,
M16_OPC_CMPI = 0x0e,
M16_OPC_SD = 0x0f,
M16_OPC_LB = 0x10,
M16_OPC_LH = 0x11,
M16_OPC_LWSP = 0x12,
M16_OPC_LW = 0x13,
M16_OPC_LBU = 0x14,
M16_OPC_LHU = 0x15,
M16_OPC_LWPC = 0x16,
M16_OPC_LWU = 0x17,
M16_OPC_SB = 0x18,
M16_OPC_SH = 0x19,
M16_OPC_SWSP = 0x1a,
M16_OPC_SW = 0x1b,
M16_OPC_RRR = 0x1c,
M16_OPC_RR = 0x1d,
M16_OPC_EXTEND = 0x1e,
M16_OPC_I64 = 0x1f
};
/* I8 funct field */
enum {
I8_BTEQZ = 0x0,
I8_BTNEZ = 0x1,
I8_SWRASP = 0x2,
I8_ADJSP = 0x3,
I8_SVRS = 0x4,
I8_MOV32R = 0x5,
I8_MOVR32 = 0x7
};
/* RRR f field */
enum {
RRR_DADDU = 0x0,
RRR_ADDU = 0x1,
RRR_DSUBU = 0x2,
RRR_SUBU = 0x3
};
/* RR funct field */
enum {
RR_JR = 0x00,
RR_SDBBP = 0x01,
RR_SLT = 0x02,
RR_SLTU = 0x03,
RR_SLLV = 0x04,
RR_BREAK = 0x05,
RR_SRLV = 0x06,
RR_SRAV = 0x07,
RR_DSRL = 0x08,
RR_CMP = 0x0a,
RR_NEG = 0x0b,
RR_AND = 0x0c,
RR_OR = 0x0d,
RR_XOR = 0x0e,
RR_NOT = 0x0f,
RR_MFHI = 0x10,
RR_CNVT = 0x11,
RR_MFLO = 0x12,
RR_DSRA = 0x13,
RR_DSLLV = 0x14,
RR_DSRLV = 0x16,
RR_DSRAV = 0x17,
RR_MULT = 0x18,
RR_MULTU = 0x19,
RR_DIV = 0x1a,
RR_DIVU = 0x1b,
RR_DMULT = 0x1c,
RR_DMULTU = 0x1d,
RR_DDIV = 0x1e,
RR_DDIVU = 0x1f
};
/* I64 funct field */
enum {
I64_LDSP = 0x0,
I64_SDSP = 0x1,
I64_SDRASP = 0x2,
I64_DADJSP = 0x3,
I64_LDPC = 0x4,
I64_DADDIU5 = 0x5,
I64_DADDIUPC = 0x6,
I64_DADDIUSP = 0x7
};
/* RR ry field for CNVT */
enum {
RR_RY_CNVT_ZEB = 0x0,
RR_RY_CNVT_ZEH = 0x1,
RR_RY_CNVT_ZEW = 0x2,
RR_RY_CNVT_SEB = 0x4,
RR_RY_CNVT_SEH = 0x5,
RR_RY_CNVT_SEW = 0x6,
};
static int xlat (int r)
{
static int map[] = { 16, 17, 2, 3, 4, 5, 6, 7 };
return map[r];
}
static void gen_mips16_save (DisasContext *ctx,
int xsregs, int aregs,
int do_ra, int do_s0, int do_s1,
int framesize)
{
TCGv t0 = tcg_temp_new();
TCGv t1 = tcg_temp_new();
int args, astatic;
switch (aregs) {
case 0:
case 1:
case 2:
case 3:
case 11:
args = 0;
break;
case 4:
case 5:
case 6:
case 7:
args = 1;
break;
case 8:
case 9:
case 10:
args = 2;
break;
case 12:
case 13:
args = 3;
break;
case 14:
args = 4;
break;
default:
generate_exception(ctx, EXCP_RI);
return;
}
switch (args) {
case 4:
gen_base_offset_addr(ctx, t0, 29, 12);
gen_load_gpr(t1, 7);
op_ldst_sw(t1, t0, ctx);
/* Fall through */
case 3:
gen_base_offset_addr(ctx, t0, 29, 8);
gen_load_gpr(t1, 6);
op_ldst_sw(t1, t0, ctx);
/* Fall through */
case 2:
gen_base_offset_addr(ctx, t0, 29, 4);
gen_load_gpr(t1, 5);
op_ldst_sw(t1, t0, ctx);
/* Fall through */
case 1:
gen_base_offset_addr(ctx, t0, 29, 0);
gen_load_gpr(t1, 4);
op_ldst_sw(t1, t0, ctx);
}
gen_load_gpr(t0, 29);
#define DECR_AND_STORE(reg) do { \
tcg_gen_subi_tl(t0, t0, 4); \
gen_load_gpr(t1, reg); \
op_ldst_sw(t1, t0, ctx); \
} while (0)
if (do_ra) {
DECR_AND_STORE(31);
}
switch (xsregs) {
case 7:
DECR_AND_STORE(30);
/* Fall through */
case 6:
DECR_AND_STORE(23);
/* Fall through */
case 5:
DECR_AND_STORE(22);
/* Fall through */
case 4:
DECR_AND_STORE(21);
/* Fall through */
case 3:
DECR_AND_STORE(20);
/* Fall through */
case 2:
DECR_AND_STORE(19);
/* Fall through */
case 1:
DECR_AND_STORE(18);
}
if (do_s1) {
DECR_AND_STORE(17);
}
if (do_s0) {
DECR_AND_STORE(16);
}
switch (aregs) {
case 0:
case 4:
case 8:
case 12:
case 14:
astatic = 0;
break;
case 1:
case 5:
case 9:
case 13:
astatic = 1;
break;
case 2:
case 6:
case 10:
astatic = 2;
break;
case 3:
case 7:
astatic = 3;
break;
case 11:
astatic = 4;
break;
default:
generate_exception(ctx, EXCP_RI);
return;
}
if (astatic > 0) {
DECR_AND_STORE(7);
if (astatic > 1) {
DECR_AND_STORE(6);
if (astatic > 2) {
DECR_AND_STORE(5);
if (astatic > 3) {
DECR_AND_STORE(4);
}
}
}
}
#undef DECR_AND_STORE
tcg_gen_subi_tl(cpu_gpr[29], cpu_gpr[29], framesize);
tcg_temp_free(t0);
tcg_temp_free(t1);
}
static void gen_mips16_restore (DisasContext *ctx,
int xsregs, int aregs,
int do_ra, int do_s0, int do_s1,
int framesize)
{
int astatic;
TCGv t0 = tcg_temp_new();
TCGv t1 = tcg_temp_new();
tcg_gen_addi_tl(t0, cpu_gpr[29], framesize);
#define DECR_AND_LOAD(reg) do { \
tcg_gen_subi_tl(t0, t0, 4); \
op_ldst_lw(t1, t0, ctx); \
gen_store_gpr(t1, reg); \
} while (0)
if (do_ra) {
DECR_AND_LOAD(31);
}
switch (xsregs) {
case 7:
DECR_AND_LOAD(30);
/* Fall through */
case 6:
DECR_AND_LOAD(23);
/* Fall through */
case 5:
DECR_AND_LOAD(22);
/* Fall through */
case 4:
DECR_AND_LOAD(21);
/* Fall through */
case 3:
DECR_AND_LOAD(20);
/* Fall through */
case 2:
DECR_AND_LOAD(19);
/* Fall through */
case 1:
DECR_AND_LOAD(18);
}
if (do_s1) {
DECR_AND_LOAD(17);
}
if (do_s0) {
DECR_AND_LOAD(16);
}
switch (aregs) {
case 0:
case 4:
case 8:
case 12:
case 14:
astatic = 0;
break;
case 1:
case 5:
case 9:
case 13:
astatic = 1;
break;
case 2:
case 6:
case 10:
astatic = 2;
break;
case 3:
case 7:
astatic = 3;
break;
case 11:
astatic = 4;
break;
default:
generate_exception(ctx, EXCP_RI);
return;
}
if (astatic > 0) {
DECR_AND_LOAD(7);
if (astatic > 1) {
DECR_AND_LOAD(6);
if (astatic > 2) {
DECR_AND_LOAD(5);
if (astatic > 3) {
DECR_AND_LOAD(4);
}
}
}
}
#undef DECR_AND_LOAD
tcg_gen_addi_tl(cpu_gpr[29], cpu_gpr[29], framesize);
tcg_temp_free(t0);
tcg_temp_free(t1);
}
static void gen_addiupc (DisasContext *ctx, int rx, int imm,
int is_64_bit, int extended)
{
TCGv t0;
if (extended && (ctx->hflags & MIPS_HFLAG_BMASK)) {
generate_exception(ctx, EXCP_RI);
return;
}
t0 = tcg_temp_new();
tcg_gen_movi_tl(t0, pc_relative_pc(ctx));
tcg_gen_addi_tl(cpu_gpr[rx], t0, imm);
if (!is_64_bit) {
tcg_gen_ext32s_tl(cpu_gpr[rx], cpu_gpr[rx]);
}
tcg_temp_free(t0);
}
#if defined(TARGET_MIPS64)
static void decode_i64_mips16 (CPUState *env, DisasContext *ctx,
int ry, int funct, int16_t offset,
int extended)
{
switch (funct) {
case I64_LDSP:
check_mips_64(ctx);
offset = extended ? offset : offset << 3;
gen_ldst(ctx, OPC_LD, ry, 29, offset);
break;
case I64_SDSP:
check_mips_64(ctx);
offset = extended ? offset : offset << 3;
gen_ldst(ctx, OPC_SD, ry, 29, offset);
break;
case I64_SDRASP:
check_mips_64(ctx);
offset = extended ? offset : (ctx->opcode & 0xff) << 3;
gen_ldst(ctx, OPC_SD, 31, 29, offset);
break;
case I64_DADJSP:
check_mips_64(ctx);
offset = extended ? offset : ((int8_t)ctx->opcode) << 3;
gen_arith_imm(env, ctx, OPC_DADDIU, 29, 29, offset);
break;
case I64_LDPC:
if (extended && (ctx->hflags & MIPS_HFLAG_BMASK)) {
generate_exception(ctx, EXCP_RI);
} else {
offset = extended ? offset : offset << 3;
gen_ldst(ctx, OPC_LDPC, ry, 0, offset);
}
break;
case I64_DADDIU5:
check_mips_64(ctx);
offset = extended ? offset : ((int8_t)(offset << 3)) >> 3;
gen_arith_imm(env, ctx, OPC_DADDIU, ry, ry, offset);
break;
case I64_DADDIUPC:
check_mips_64(ctx);
offset = extended ? offset : offset << 2;
gen_addiupc(ctx, ry, offset, 1, extended);
break;
case I64_DADDIUSP:
check_mips_64(ctx);
offset = extended ? offset : offset << 2;
gen_arith_imm(env, ctx, OPC_DADDIU, ry, 29, offset);
break;
}
}
#endif
static int decode_extended_mips16_opc (CPUState *env, DisasContext *ctx,
int *is_branch)
{
int extend = lduw_code(ctx->pc + 2);
int op, rx, ry, funct, sa;
int16_t imm, offset;
ctx->opcode = (ctx->opcode << 16) | extend;
op = (ctx->opcode >> 11) & 0x1f;
sa = (ctx->opcode >> 22) & 0x1f;
funct = (ctx->opcode >> 8) & 0x7;
rx = xlat((ctx->opcode >> 8) & 0x7);
ry = xlat((ctx->opcode >> 5) & 0x7);
offset = imm = (int16_t) (((ctx->opcode >> 16) & 0x1f) << 11
| ((ctx->opcode >> 21) & 0x3f) << 5
| (ctx->opcode & 0x1f));
/* The extended opcodes cleverly reuse the opcodes from their 16-bit
counterparts. */
switch (op) {
case M16_OPC_ADDIUSP:
gen_arith_imm(env, ctx, OPC_ADDIU, rx, 29, imm);
break;
case M16_OPC_ADDIUPC:
gen_addiupc(ctx, rx, imm, 0, 1);
break;
case M16_OPC_B:
gen_compute_branch(ctx, OPC_BEQ, 4, 0, 0, offset << 1);
/* No delay slot, so just process as a normal instruction */
break;
case M16_OPC_BEQZ:
gen_compute_branch(ctx, OPC_BEQ, 4, rx, 0, offset << 1);
/* No delay slot, so just process as a normal instruction */
break;
case M16_OPC_BNEQZ:
gen_compute_branch(ctx, OPC_BNE, 4, rx, 0, offset << 1);
/* No delay slot, so just process as a normal instruction */
break;
case M16_OPC_SHIFT:
switch (ctx->opcode & 0x3) {
case 0x0:
gen_shift_imm(env, ctx, OPC_SLL, rx, ry, sa);
break;
case 0x1:
#if defined(TARGET_MIPS64)
check_mips_64(ctx);
gen_shift_imm(env, ctx, OPC_DSLL, rx, ry, sa);
#else
generate_exception(ctx, EXCP_RI);
#endif
break;
case 0x2:
gen_shift_imm(env, ctx, OPC_SRL, rx, ry, sa);
break;
case 0x3:
gen_shift_imm(env, ctx, OPC_SRA, rx, ry, sa);
break;
}
break;
#if defined(TARGET_MIPS64)
case M16_OPC_LD:
check_mips_64(ctx);
gen_ldst(ctx, OPC_LD, ry, rx, offset);
break;
#endif
case M16_OPC_RRIA:
imm = ctx->opcode & 0xf;
imm = imm | ((ctx->opcode >> 20) & 0x7f) << 4;
imm = imm | ((ctx->opcode >> 16) & 0xf) << 11;
imm = (int16_t) (imm << 1) >> 1;
if ((ctx->opcode >> 4) & 0x1) {
#if defined(TARGET_MIPS64)
check_mips_64(ctx);
gen_arith_imm(env, ctx, OPC_DADDIU, ry, rx, imm);
#else
generate_exception(ctx, EXCP_RI);
#endif
} else {
gen_arith_imm(env, ctx, OPC_ADDIU, ry, rx, imm);
}
break;
case M16_OPC_ADDIU8:
gen_arith_imm(env, ctx, OPC_ADDIU, rx, rx, imm);
break;
case M16_OPC_SLTI:
gen_slt_imm(env, OPC_SLTI, 24, rx, imm);
break;
case M16_OPC_SLTIU:
gen_slt_imm(env, OPC_SLTIU, 24, rx, imm);
break;
case M16_OPC_I8:
switch (funct) {
case I8_BTEQZ:
gen_compute_branch(ctx, OPC_BEQ, 4, 24, 0, offset << 1);
break;
case I8_BTNEZ:
gen_compute_branch(ctx, OPC_BNE, 4, 24, 0, offset << 1);
break;
case I8_SWRASP:
gen_ldst(ctx, OPC_SW, 31, 29, imm);
break;
case I8_ADJSP:
gen_arith_imm(env, ctx, OPC_ADDIU, 29, 29, imm);
break;
case I8_SVRS:
{
int xsregs = (ctx->opcode >> 24) & 0x7;
int aregs = (ctx->opcode >> 16) & 0xf;
int do_ra = (ctx->opcode >> 6) & 0x1;
int do_s0 = (ctx->opcode >> 5) & 0x1;
int do_s1 = (ctx->opcode >> 4) & 0x1;
int framesize = (((ctx->opcode >> 20) & 0xf) << 4
| (ctx->opcode & 0xf)) << 3;
if (ctx->opcode & (1 << 7)) {
gen_mips16_save(ctx, xsregs, aregs,
do_ra, do_s0, do_s1,
framesize);
} else {
gen_mips16_restore(ctx, xsregs, aregs,
do_ra, do_s0, do_s1,
framesize);
}
}
break;
default:
generate_exception(ctx, EXCP_RI);
break;
}
break;
case M16_OPC_LI:
tcg_gen_movi_tl(cpu_gpr[rx], (uint16_t) imm);
break;
case M16_OPC_CMPI:
tcg_gen_xori_tl(cpu_gpr[24], cpu_gpr[rx], (uint16_t) imm);
break;
#if defined(TARGET_MIPS64)
case M16_OPC_SD:
gen_ldst(ctx, OPC_SD, ry, rx, offset);
break;
#endif
case M16_OPC_LB:
gen_ldst(ctx, OPC_LB, ry, rx, offset);
break;
case M16_OPC_LH:
gen_ldst(ctx, OPC_LH, ry, rx, offset);
break;
case M16_OPC_LWSP:
gen_ldst(ctx, OPC_LW, rx, 29, offset);
break;
case M16_OPC_LW:
gen_ldst(ctx, OPC_LW, ry, rx, offset);
break;
case M16_OPC_LBU:
gen_ldst(ctx, OPC_LBU, ry, rx, offset);
break;
case M16_OPC_LHU:
gen_ldst(ctx, OPC_LHU, ry, rx, offset);
break;
case M16_OPC_LWPC:
gen_ldst(ctx, OPC_LWPC, rx, 0, offset);
break;
#if defined(TARGET_MIPS64)
case M16_OPC_LWU:
gen_ldst(ctx, OPC_LWU, ry, rx, offset);
break;
#endif
case M16_OPC_SB:
gen_ldst(ctx, OPC_SB, ry, rx, offset);
break;
case M16_OPC_SH:
gen_ldst(ctx, OPC_SH, ry, rx, offset);
break;
case M16_OPC_SWSP:
gen_ldst(ctx, OPC_SW, rx, 29, offset);
break;
case M16_OPC_SW:
gen_ldst(ctx, OPC_SW, ry, rx, offset);
break;
#if defined(TARGET_MIPS64)
case M16_OPC_I64:
decode_i64_mips16(env, ctx, ry, funct, offset, 1);
break;
#endif
default:
generate_exception(ctx, EXCP_RI);
break;
}
return 4;
}
static int decode_mips16_opc (CPUState *env, DisasContext *ctx,
int *is_branch)
{
int rx, ry;
int sa;
int op, cnvt_op, op1, offset;
int funct;
int n_bytes;
op = (ctx->opcode >> 11) & 0x1f;
sa = (ctx->opcode >> 2) & 0x7;
sa = sa == 0 ? 8 : sa;
rx = xlat((ctx->opcode >> 8) & 0x7);
cnvt_op = (ctx->opcode >> 5) & 0x7;
ry = xlat((ctx->opcode >> 5) & 0x7);
op1 = offset = ctx->opcode & 0x1f;
n_bytes = 2;
switch (op) {
case M16_OPC_ADDIUSP:
{
int16_t imm = ((uint8_t) ctx->opcode) << 2;
gen_arith_imm(env, ctx, OPC_ADDIU, rx, 29, imm);
}
break;
case M16_OPC_ADDIUPC:
gen_addiupc(ctx, rx, ((uint8_t) ctx->opcode) << 2, 0, 0);
break;
case M16_OPC_B:
offset = (ctx->opcode & 0x7ff) << 1;
offset = (int16_t)(offset << 4) >> 4;
gen_compute_branch(ctx, OPC_BEQ, 2, 0, 0, offset);
/* No delay slot, so just process as a normal instruction */
break;
case M16_OPC_JAL:
offset = lduw_code(ctx->pc + 2);
offset = (((ctx->opcode & 0x1f) << 21)
| ((ctx->opcode >> 5) & 0x1f) << 16
| offset) << 2;
op = ((ctx->opcode >> 10) & 0x1) ? OPC_JALXS : OPC_JALS;
gen_compute_branch(ctx, op, 4, rx, ry, offset);
n_bytes = 4;
*is_branch = 1;
break;
case M16_OPC_BEQZ:
gen_compute_branch(ctx, OPC_BEQ, 2, rx, 0, ((int8_t)ctx->opcode) << 1);
/* No delay slot, so just process as a normal instruction */
break;
case M16_OPC_BNEQZ:
gen_compute_branch(ctx, OPC_BNE, 2, rx, 0, ((int8_t)ctx->opcode) << 1);
/* No delay slot, so just process as a normal instruction */
break;
case M16_OPC_SHIFT:
switch (ctx->opcode & 0x3) {
case 0x0:
gen_shift_imm(env, ctx, OPC_SLL, rx, ry, sa);
break;
case 0x1:
#if defined(TARGET_MIPS64)
check_mips_64(ctx);
gen_shift_imm(env, ctx, OPC_DSLL, rx, ry, sa);
#else
generate_exception(ctx, EXCP_RI);
#endif
break;
case 0x2:
gen_shift_imm(env, ctx, OPC_SRL, rx, ry, sa);
break;
case 0x3:
gen_shift_imm(env, ctx, OPC_SRA, rx, ry, sa);
break;
}
break;
#if defined(TARGET_MIPS64)
case M16_OPC_LD:
check_mips_64(ctx);
gen_ldst(ctx, OPC_LD, ry, rx, offset << 3);
break;
#endif
case M16_OPC_RRIA:
{
int16_t imm = (int8_t)((ctx->opcode & 0xf) << 4) >> 4;
if ((ctx->opcode >> 4) & 1) {
#if defined(TARGET_MIPS64)
check_mips_64(ctx);
gen_arith_imm(env, ctx, OPC_DADDIU, ry, rx, imm);
#else
generate_exception(ctx, EXCP_RI);
#endif
} else {
gen_arith_imm(env, ctx, OPC_ADDIU, ry, rx, imm);
}
}
break;
case M16_OPC_ADDIU8:
{
int16_t imm = (int8_t) ctx->opcode;
gen_arith_imm(env, ctx, OPC_ADDIU, rx, rx, imm);
}
break;
case M16_OPC_SLTI:
{
int16_t imm = (uint8_t) ctx->opcode;
gen_slt_imm(env, OPC_SLTI, 24, rx, imm);
}
break;
case M16_OPC_SLTIU:
{
int16_t imm = (uint8_t) ctx->opcode;
gen_slt_imm(env, OPC_SLTIU, 24, rx, imm);
}
break;
case M16_OPC_I8:
{
int reg32;
funct = (ctx->opcode >> 8) & 0x7;
switch (funct) {
case I8_BTEQZ:
gen_compute_branch(ctx, OPC_BEQ, 2, 24, 0,
((int8_t)ctx->opcode) << 1);
break;
case I8_BTNEZ:
gen_compute_branch(ctx, OPC_BNE, 2, 24, 0,
((int8_t)ctx->opcode) << 1);
break;
case I8_SWRASP:
gen_ldst(ctx, OPC_SW, 31, 29, (ctx->opcode & 0xff) << 2);
break;
case I8_ADJSP:
gen_arith_imm(env, ctx, OPC_ADDIU, 29, 29,
((int8_t)ctx->opcode) << 3);
break;
case I8_SVRS:
{
int do_ra = ctx->opcode & (1 << 6);
int do_s0 = ctx->opcode & (1 << 5);
int do_s1 = ctx->opcode & (1 << 4);
int framesize = ctx->opcode & 0xf;
if (framesize == 0) {
framesize = 128;
} else {
framesize = framesize << 3;
}
if (ctx->opcode & (1 << 7)) {
gen_mips16_save(ctx, 0, 0,
do_ra, do_s0, do_s1, framesize);
} else {
gen_mips16_restore(ctx, 0, 0,
do_ra, do_s0, do_s1, framesize);
}
}
break;
case I8_MOV32R:
{
int rz = xlat(ctx->opcode & 0x7);
reg32 = (((ctx->opcode >> 3) & 0x3) << 3) |
((ctx->opcode >> 5) & 0x7);
gen_arith(env, ctx, OPC_ADDU, reg32, rz, 0);
}
break;
case I8_MOVR32:
reg32 = ctx->opcode & 0x1f;
gen_arith(env, ctx, OPC_ADDU, ry, reg32, 0);
break;
default:
generate_exception(ctx, EXCP_RI);
break;
}
}
break;
case M16_OPC_LI:
{
int16_t imm = (uint8_t) ctx->opcode;
gen_arith_imm(env, ctx, OPC_ADDIU, rx, 0, imm);
}
break;
case M16_OPC_CMPI:
{
int16_t imm = (uint8_t) ctx->opcode;
gen_logic_imm(env, OPC_XORI, 24, rx, imm);
}
break;
#if defined(TARGET_MIPS64)
case M16_OPC_SD:
check_mips_64(ctx);
gen_ldst(ctx, OPC_SD, ry, rx, offset << 3);
break;
#endif
case M16_OPC_LB:
gen_ldst(ctx, OPC_LB, ry, rx, offset);
break;
case M16_OPC_LH:
gen_ldst(ctx, OPC_LH, ry, rx, offset << 1);
break;
case M16_OPC_LWSP:
gen_ldst(ctx, OPC_LW, rx, 29, ((uint8_t)ctx->opcode) << 2);
break;
case M16_OPC_LW:
gen_ldst(ctx, OPC_LW, ry, rx, offset << 2);
break;
case M16_OPC_LBU:
gen_ldst(ctx, OPC_LBU, ry, rx, offset);
break;
case M16_OPC_LHU:
gen_ldst(ctx, OPC_LHU, ry, rx, offset << 1);
break;
case M16_OPC_LWPC:
gen_ldst(ctx, OPC_LWPC, rx, 0, ((uint8_t)ctx->opcode) << 2);
break;
#if defined (TARGET_MIPS64)
case M16_OPC_LWU:
check_mips_64(ctx);
gen_ldst(ctx, OPC_LWU, ry, rx, offset << 2);
break;
#endif
case M16_OPC_SB:
gen_ldst(ctx, OPC_SB, ry, rx, offset);
break;
case M16_OPC_SH:
gen_ldst(ctx, OPC_SH, ry, rx, offset << 1);
break;
case M16_OPC_SWSP:
gen_ldst(ctx, OPC_SW, rx, 29, ((uint8_t)ctx->opcode) << 2);
break;
case M16_OPC_SW:
gen_ldst(ctx, OPC_SW, ry, rx, offset << 2);
break;
case M16_OPC_RRR:
{
int rz = xlat((ctx->opcode >> 2) & 0x7);
int mips32_op;
switch (ctx->opcode & 0x3) {
case RRR_ADDU:
mips32_op = OPC_ADDU;
break;
case RRR_SUBU:
mips32_op = OPC_SUBU;
break;
#if defined(TARGET_MIPS64)
case RRR_DADDU:
mips32_op = OPC_DADDU;
check_mips_64(ctx);
break;
case RRR_DSUBU:
mips32_op = OPC_DSUBU;
check_mips_64(ctx);
break;
#endif
default:
generate_exception(ctx, EXCP_RI);
goto done;
}
gen_arith(env, ctx, mips32_op, rz, rx, ry);
done:
;
}
break;
case M16_OPC_RR:
switch (op1) {
case RR_JR:
{
int nd = (ctx->opcode >> 7) & 0x1;
int link = (ctx->opcode >> 6) & 0x1;
int ra = (ctx->opcode >> 5) & 0x1;
if (link) {
op = nd ? OPC_JALRC : OPC_JALRS;
} else {
op = OPC_JR;
}
gen_compute_branch(ctx, op, 2, ra ? 31 : rx, 31, 0);
if (!nd) {
*is_branch = 1;
}
}
break;
case RR_SDBBP:
/* XXX: not clear which exception should be raised
* when in debug mode...
*/
check_insn(env, ctx, ISA_MIPS32);
if (!(ctx->hflags & MIPS_HFLAG_DM)) {
generate_exception(ctx, EXCP_DBp);
} else {
generate_exception(ctx, EXCP_DBp);
}
break;
case RR_SLT:
gen_slt(env, OPC_SLT, 24, rx, ry);
break;
case RR_SLTU:
gen_slt(env, OPC_SLTU, 24, rx, ry);
break;
case RR_BREAK:
generate_exception(ctx, EXCP_BREAK);
break;
case RR_SLLV:
gen_shift(env, ctx, OPC_SLLV, ry, rx, ry);
break;
case RR_SRLV:
gen_shift(env, ctx, OPC_SRLV, ry, rx, ry);
break;
case RR_SRAV:
gen_shift(env, ctx, OPC_SRAV, ry, rx, ry);
break;
#if defined (TARGET_MIPS64)
case RR_DSRL:
check_mips_64(ctx);
gen_shift_imm(env, ctx, OPC_DSRL, ry, ry, sa);
break;
#endif
case RR_CMP:
gen_logic(env, OPC_XOR, 24, rx, ry);
break;
case RR_NEG:
gen_arith(env, ctx, OPC_SUBU, rx, 0, ry);
break;
case RR_AND:
gen_logic(env, OPC_AND, rx, rx, ry);
break;
case RR_OR:
gen_logic(env, OPC_OR, rx, rx, ry);
break;
case RR_XOR:
gen_logic(env, OPC_XOR, rx, rx, ry);
break;
case RR_NOT:
gen_logic(env, OPC_NOR, rx, ry, 0);
break;
case RR_MFHI:
gen_HILO(ctx, OPC_MFHI, rx);
break;
case RR_CNVT:
switch (cnvt_op) {
case RR_RY_CNVT_ZEB:
tcg_gen_ext8u_tl(cpu_gpr[rx], cpu_gpr[rx]);
break;
case RR_RY_CNVT_ZEH:
tcg_gen_ext16u_tl(cpu_gpr[rx], cpu_gpr[rx]);
break;
case RR_RY_CNVT_SEB:
tcg_gen_ext8s_tl(cpu_gpr[rx], cpu_gpr[rx]);
break;
case RR_RY_CNVT_SEH:
tcg_gen_ext16s_tl(cpu_gpr[rx], cpu_gpr[rx]);
break;
#if defined (TARGET_MIPS64)
case RR_RY_CNVT_ZEW:
check_mips_64(ctx);
tcg_gen_ext32u_tl(cpu_gpr[rx], cpu_gpr[rx]);
break;
case RR_RY_CNVT_SEW:
check_mips_64(ctx);
tcg_gen_ext32s_tl(cpu_gpr[rx], cpu_gpr[rx]);
break;
#endif
default:
generate_exception(ctx, EXCP_RI);
break;
}
break;
case RR_MFLO:
gen_HILO(ctx, OPC_MFLO, rx);
break;
#if defined (TARGET_MIPS64)
case RR_DSRA:
check_mips_64(ctx);
gen_shift_imm(env, ctx, OPC_DSRA, ry, ry, sa);
break;
case RR_DSLLV:
check_mips_64(ctx);
gen_shift(env, ctx, OPC_DSLLV, ry, rx, ry);
break;
case RR_DSRLV:
check_mips_64(ctx);
gen_shift(env, ctx, OPC_DSRLV, ry, rx, ry);
break;
case RR_DSRAV:
check_mips_64(ctx);
gen_shift(env, ctx, OPC_DSRAV, ry, rx, ry);
break;
#endif
case RR_MULT:
gen_muldiv(ctx, OPC_MULT, rx, ry);
break;
case RR_MULTU:
gen_muldiv(ctx, OPC_MULTU, rx, ry);
break;
case RR_DIV:
gen_muldiv(ctx, OPC_DIV, rx, ry);
break;
case RR_DIVU:
gen_muldiv(ctx, OPC_DIVU, rx, ry);
break;
#if defined (TARGET_MIPS64)
case RR_DMULT:
check_mips_64(ctx);
gen_muldiv(ctx, OPC_DMULT, rx, ry);
break;
case RR_DMULTU:
check_mips_64(ctx);
gen_muldiv(ctx, OPC_DMULTU, rx, ry);
break;
case RR_DDIV:
check_mips_64(ctx);
gen_muldiv(ctx, OPC_DDIV, rx, ry);
break;
case RR_DDIVU:
check_mips_64(ctx);
gen_muldiv(ctx, OPC_DDIVU, rx, ry);
break;
#endif
default:
generate_exception(ctx, EXCP_RI);
break;
}
break;
case M16_OPC_EXTEND:
decode_extended_mips16_opc(env, ctx, is_branch);
n_bytes = 4;
break;
#if defined(TARGET_MIPS64)
case M16_OPC_I64:
funct = (ctx->opcode >> 8) & 0x7;
decode_i64_mips16(env, ctx, ry, funct, offset, 0);
break;
#endif
default:
generate_exception(ctx, EXCP_RI);
break;
}
return n_bytes;
}
/* microMIPS extension to MIPS32 */
/* microMIPS32 major opcodes */
enum {
POOL32A = 0x00,
POOL16A = 0x01,
LBU16 = 0x02,
MOVE16 = 0x03,
ADDI32 = 0x04,
LBU32 = 0x05,
SB32 = 0x06,
LB32 = 0x07,
POOL32B = 0x08,
POOL16B = 0x09,
LHU16 = 0x0a,
ANDI16 = 0x0b,
ADDIU32 = 0x0c,
LHU32 = 0x0d,
SH32 = 0x0e,
LH32 = 0x0f,
POOL32I = 0x10,
POOL16C = 0x11,
LWSP16 = 0x12,
POOL16D = 0x13,
ORI32 = 0x14,
POOL32F = 0x15,
POOL32S = 0x16,
DADDIU32 = 0x17,
POOL32C = 0x18,
LWGP16 = 0x19,
LW16 = 0x1a,
POOL16E = 0x1b,
XORI32 = 0x1c,
JALS32 = 0x1d,
ADDIUPC = 0x1e,
POOL48A = 0x1f,
/* 0x20 is reserved */
RES_20 = 0x20,
POOL16F = 0x21,
SB16 = 0x22,
BEQZ16 = 0x23,
SLTI32 = 0x24,
BEQ32 = 0x25,
SWC132 = 0x26,
LWC132 = 0x27,
/* 0x28 and 0x29 are reserved */
RES_28 = 0x28,
RES_29 = 0x29,
SH16 = 0x2a,
BNEZ16 = 0x2b,
SLTIU32 = 0x2c,
BNE32 = 0x2d,
SDC132 = 0x2e,
LDC132 = 0x2f,
/* 0x30 and 0x31 are reserved */
RES_30 = 0x30,
RES_31 = 0x31,
SWSP16 = 0x32,
B16 = 0x33,
ANDI32 = 0x34,
J32 = 0x35,
SD32 = 0x36,
LD32 = 0x37,
/* 0x38 and 0x39 are reserved */
RES_38 = 0x38,
RES_39 = 0x39,
SW16 = 0x3a,
LI16 = 0x3b,
JALX32 = 0x3c,
JAL32 = 0x3d,
SW32 = 0x3e,
LW32 = 0x3f
};
/* POOL32A encoding of minor opcode field */
enum {
/* These opcodes are distinguished only by bits 9..6; those bits are
* what are recorded below. */
SLL32 = 0x0,
SRL32 = 0x1,
SRA = 0x2,
ROTR = 0x3,
SLLV = 0x0,
SRLV = 0x1,
SRAV = 0x2,
ROTRV = 0x3,
ADD = 0x4,
ADDU32 = 0x5,
SUB = 0x6,
SUBU32 = 0x7,
MUL = 0x8,
AND = 0x9,
OR32 = 0xa,
NOR = 0xb,
XOR32 = 0xc,
SLT = 0xd,
SLTU = 0xe,
MOVN = 0x0,
MOVZ = 0x1,
LWXS = 0x4,
/* The following can be distinguished by their lower 6 bits. */
INS = 0x0c,
EXT = 0x2c,
POOL32AXF = 0x3c
};
/* POOL32AXF encoding of minor opcode field extension */
enum {
/* bits 11..6 */
TEQ = 0x00,
TGE = 0x08,
TGEU = 0x10,
TLT = 0x20,
TLTU = 0x28,
TNE = 0x30,
MFC0 = 0x03,
MTC0 = 0x0b,
/* bits 13..12 for 0x01 */
MFHI_ACC = 0x0,
MFLO_ACC = 0x1,
MTHI_ACC = 0x2,
MTLO_ACC = 0x3,
/* bits 13..12 for 0x2a */
MADD_ACC = 0x0,
MADDU_ACC = 0x1,
MSUB_ACC = 0x2,
MSUBU_ACC = 0x3,
/* bits 13..12 for 0x32 */
MULT_ACC = 0x0,
MULTU_ACC = 0x0,
/* bits 15..12 for 0x2c */
SEB = 0x2,
SEH = 0x3,
CLO = 0x4,
CLZ = 0x5,
RDHWR = 0x6,
WSBH = 0x7,
MULT = 0x8,
MULTU = 0x9,
DIV = 0xa,
DIVU = 0xb,
MADD = 0xc,
MADDU = 0xd,
MSUB = 0xe,
MSUBU = 0xf,
/* bits 15..12 for 0x34 */
MFC2 = 0x4,
MTC2 = 0x5,
MFHC2 = 0x8,
MTHC2 = 0x9,
CFC2 = 0xc,
CTC2 = 0xd,
/* bits 15..12 for 0x3c */
JALR = 0x0,
JR = 0x0, /* alias */
JALR_HB = 0x1,
JALRS = 0x4,
JALRS_HB = 0x5,
/* bits 15..12 for 0x05 */
RDPGPR = 0xe,
WRPGPR = 0xf,
/* bits 15..12 for 0x0d */
TLBP = 0x0,
TLBR = 0x1,
TLBWI = 0x2,
TLBWR = 0x3,
WAIT = 0x9,
IRET = 0xd,
DERET = 0xe,
ERET = 0xf,
/* bits 15..12 for 0x15 */
DMT = 0x0,
DVPE = 0x1,
EMT = 0x2,
EVPE = 0x3,
/* bits 15..12 for 0x1d */
DI = 0x4,
EI = 0x5,
/* bits 15..12 for 0x2d */
SYNC = 0x6,
SYSCALL = 0x8,
SDBBP = 0xd,
/* bits 15..12 for 0x35 */
MFHI32 = 0x0,
MFLO32 = 0x1,
MTHI32 = 0x2,
MTLO32 = 0x3,
};
/* POOL32B encoding of minor opcode field (bits 15..12) */
enum {
LWC2 = 0x0,
LWP = 0x1,
LDP = 0x4,
LWM32 = 0x5,
CACHE = 0x6,
LDM = 0x7,
SWC2 = 0x8,
SWP = 0x9,
SDP = 0xc,
SWM32 = 0xd,
SDM = 0xf
};
/* POOL32C encoding of minor opcode field (bits 15..12) */
enum {
LWL = 0x0,
SWL = 0x8,
LWR = 0x1,
SWR = 0x9,
PREF = 0x2,
/* 0xa is reserved */
LL = 0x3,
SC = 0xb,
LDL = 0x4,
SDL = 0xc,
LDR = 0x5,
SDR = 0xd,
/* 0x6 is reserved */
LWU = 0xe,
LLD = 0x7,
SCD = 0xf
};
/* POOL32F encoding of minor opcode field (bits 5..0) */
enum {
/* These are the bit 7..6 values */
ADD_FMT = 0x0,
MOVN_FMT = 0x0,
SUB_FMT = 0x1,
MOVZ_FMT = 0x1,
MUL_FMT = 0x2,
DIV_FMT = 0x3,
/* These are the bit 8..6 values */
RSQRT2_FMT = 0x0,
MOVF_FMT = 0x0,
LWXC1 = 0x1,
MOVT_FMT = 0x1,
PLL_PS = 0x2,
SWXC1 = 0x2,
PLU_PS = 0x3,
LDXC1 = 0x3,
PUL_PS = 0x4,
SDXC1 = 0x4,
RECIP2_FMT = 0x4,
PUU_PS = 0x5,
LUXC1 = 0x5,
CVT_PS_S = 0x6,
SUXC1 = 0x6,
ADDR_PS = 0x6,
PREFX = 0x6,
MULR_PS = 0x7,
MADD_S = 0x01,
MADD_D = 0x09,
MADD_PS = 0x11,
ALNV_PS = 0x19,
MSUB_S = 0x21,
MSUB_D = 0x29,
MSUB_PS = 0x31,
NMADD_S = 0x02,
NMADD_D = 0x0a,
NMADD_PS = 0x12,
NMSUB_S = 0x22,
NMSUB_D = 0x2a,
NMSUB_PS = 0x32,
POOL32FXF = 0x3b,
CABS_COND_FMT = 0x1c, /* MIPS3D */
C_COND_FMT = 0x3c
};
/* POOL32Fxf encoding of minor opcode extension field */
enum {
CVT_L = 0x04,
RSQRT_FMT = 0x08,
FLOOR_L = 0x0c,
CVT_PW_PS = 0x1c,
CVT_W = 0x24,
SQRT_FMT = 0x28,
FLOOR_W = 0x2c,
CVT_PS_PW = 0x3c,
CFC1 = 0x40,
RECIP_FMT = 0x48,
CEIL_L = 0x4c,
CTC1 = 0x60,
CEIL_W = 0x6c,
MFC1 = 0x80,
CVT_S_PL = 0x84,
TRUNC_L = 0x8c,
MTC1 = 0xa0,
CVT_S_PU = 0xa4,
TRUNC_W = 0xac,
MFHC1 = 0xc0,
ROUND_L = 0xcc,
MTHC1 = 0xe0,
ROUND_W = 0xec,
MOV_FMT = 0x01,
MOVF = 0x05,
ABS_FMT = 0x0d,
RSQRT1_FMT = 0x1d,
MOVT = 0x25,
NEG_FMT = 0x2d,
CVT_D = 0x4d,
RECIP1_FMT = 0x5d,
CVT_S = 0x6d
};
/* POOL32I encoding of minor opcode field (bits 25..21) */
enum {
BLTZ = 0x00,
BLTZAL = 0x01,
BGEZ = 0x02,
BGEZAL = 0x03,
BLEZ = 0x04,
BNEZC = 0x05,
BGTZ = 0x06,
BEQZC = 0x07,
TLTI = 0x08,
TGEI = 0x09,
TLTIU = 0x0a,
TGEIU = 0x0b,
TNEI = 0x0c,
LUI = 0x0d,
TEQI = 0x0e,
SYNCI = 0x10,
BLTZALS = 0x11,
BGEZALS = 0x13,
BC2F = 0x14,
BC2T = 0x15,
BPOSGE64 = 0x1a,
BPOSGE32 = 0x1b,
/* These overlap and are distinguished by bit16 of the instruction */
BC1F = 0x1c,
BC1T = 0x1d,
BC1ANY2F = 0x1c,
BC1ANY2T = 0x1d,
BC1ANY4F = 0x1e,
BC1ANY4T = 0x1f
};
/* POOL16A encoding of minor opcode field */
enum {
ADDU16 = 0x0,
SUBU16 = 0x1
};
/* POOL16B encoding of minor opcode field */
enum {
SLL16 = 0x0,
SRL16 = 0x1
};
/* POOL16C encoding of minor opcode field */
enum {
NOT16 = 0x00,
XOR16 = 0x04,
AND16 = 0x08,
OR16 = 0x0c,
LWM16 = 0x10,
SWM16 = 0x14,
JR16 = 0x18,
JRC16 = 0x1a,
JALR16 = 0x1c,
JALR16S = 0x1e,
MFHI16 = 0x20,
MFLO16 = 0x24,
BREAK16 = 0x28,
SDBBP16 = 0x2c,
JRADDIUSP = 0x30
};
/* POOL16D encoding of minor opcode field */
enum {
ADDIUS5 = 0x0,
ADDIUSP = 0x1
};
/* POOL16E encoding of minor opcode field */
enum {
ADDIUR2 = 0x0,
ADDIUR1SP = 0x1
};
static int mmreg (int r)
{
static const int map[] = { 16, 17, 2, 3, 4, 5, 6, 7 };
return map[r];
}
/* Used for 16-bit store instructions. */
static int mmreg2 (int r)
{
static const int map[] = { 0, 17, 2, 3, 4, 5, 6, 7 };
return map[r];
}
#define uMIPS_RD(op) ((op >> 7) & 0x7)
#define uMIPS_RS(op) ((op >> 4) & 0x7)
#define uMIPS_RS2(op) uMIPS_RS(op)
#define uMIPS_RS1(op) ((op >> 1) & 0x7)
#define uMIPS_RD5(op) ((op >> 5) & 0x1f)
#define uMIPS_RS5(op) (op & 0x1f)
/* Signed immediate */
#define SIMM(op, start, width) \
((int32_t)(((op >> start) & ((~0U) >> (32-width))) \
<< (32-width)) \
>> (32-width))
/* Zero-extended immediate */
#define ZIMM(op, start, width) ((op >> start) & ((~0U) >> (32-width)))
static void gen_addiur1sp (CPUState *env, DisasContext *ctx)
{
int rd = mmreg(uMIPS_RD(ctx->opcode));
gen_arith_imm(env, ctx, OPC_ADDIU, rd, 29, ((ctx->opcode >> 1) & 0x3f) << 2);
}
static void gen_addiur2 (CPUState *env, DisasContext *ctx)
{
static const int decoded_imm[] = { 1, 4, 8, 12, 16, 20, 24, -1 };
int rd = mmreg(uMIPS_RD(ctx->opcode));
int rs = mmreg(uMIPS_RS(ctx->opcode));
gen_arith_imm(env, ctx, OPC_ADDIU, rd, rs, decoded_imm[ZIMM(ctx->opcode, 1, 3)]);
}
static void gen_addiusp (CPUState *env, DisasContext *ctx)
{
int encoded = ZIMM(ctx->opcode, 1, 9);
int decoded;
if (encoded <= 1) {
decoded = 256 + encoded;
} else if (encoded <= 255) {
decoded = encoded;
} else if (encoded <= 509) {
decoded = encoded - 512;
} else {
decoded = encoded - 768;
}
gen_arith_imm(env, ctx, OPC_ADDIU, 29, 29, decoded << 2);
}
static void gen_addius5 (CPUState *env, DisasContext *ctx)
{
int imm = SIMM(ctx->opcode, 1, 4);
int rd = (ctx->opcode >> 5) & 0x1f;
gen_arith_imm(env, ctx, OPC_ADDIU, rd, rd, imm);
}
static void gen_andi16 (CPUState *env, DisasContext *ctx)
{
static const int decoded_imm[] = { 128, 1, 2, 3, 4, 7, 8, 15, 16,
31, 32, 63, 64, 255, 32768, 65535 };
int rd = mmreg(uMIPS_RD(ctx->opcode));
int rs = mmreg(uMIPS_RS(ctx->opcode));
int encoded = ZIMM(ctx->opcode, 0, 4);
gen_logic_imm(env, OPC_ANDI, rd, rs, decoded_imm[encoded]);
}
static void gen_ldst_multiple (DisasContext *ctx, uint32_t opc, int reglist,
int base, int16_t offset)
{
TCGv t0, t1;
TCGv_i32 t2;
if (ctx->hflags & MIPS_HFLAG_BMASK) {
generate_exception(ctx, EXCP_RI);
return;
}
t0 = tcg_temp_new();
gen_base_offset_addr(ctx, t0, base, offset);
t1 = tcg_const_tl(reglist);
t2 = tcg_const_i32(ctx->mem_idx);
save_cpu_state(ctx, 1);
switch (opc) {
case LWM32:
gen_helper_lwm(t0, t1, t2);
break;
case SWM32:
gen_helper_swm(t0, t1, t2);
break;
#ifdef TARGET_MIPS64
case LDM:
gen_helper_ldm(t0, t1, t2);
break;
case SDM:
gen_helper_sdm(t0, t1, t2);
break;
#endif
}
MIPS_DEBUG("%s, %x, %d(%s)", opn, reglist, offset, regnames[base]);
tcg_temp_free(t0);
tcg_temp_free(t1);
tcg_temp_free_i32(t2);
}
static void gen_pool16c_insn (CPUState *env, DisasContext *ctx, int *is_branch)
{
int rd = mmreg((ctx->opcode >> 3) & 0x7);
int rs = mmreg(ctx->opcode & 0x7);
int opc;
switch (((ctx->opcode) >> 4) & 0x3f) {
case NOT16 + 0:
case NOT16 + 1:
case NOT16 + 2:
case NOT16 + 3:
gen_logic(env, OPC_NOR, rd, rs, 0);
break;
case XOR16 + 0:
case XOR16 + 1:
case XOR16 + 2:
case XOR16 + 3:
gen_logic(env, OPC_XOR, rd, rd, rs);
break;
case AND16 + 0:
case AND16 + 1:
case AND16 + 2:
case AND16 + 3:
gen_logic(env, OPC_AND, rd, rd, rs);
break;
case OR16 + 0:
case OR16 + 1:
case OR16 + 2:
case OR16 + 3:
gen_logic(env, OPC_OR, rd, rd, rs);
break;
case LWM16 + 0:
case LWM16 + 1:
case LWM16 + 2:
case LWM16 + 3:
{
static const int lwm_convert[] = { 0x11, 0x12, 0x13, 0x14 };
int offset = ZIMM(ctx->opcode, 0, 4);
gen_ldst_multiple(ctx, LWM32, lwm_convert[(ctx->opcode >> 4) & 0x3],
29, offset << 2);
}
break;
case SWM16 + 0:
case SWM16 + 1:
case SWM16 + 2:
case SWM16 + 3:
{
static const int swm_convert[] = { 0x11, 0x12, 0x13, 0x14 };
int offset = ZIMM(ctx->opcode, 0, 4);
gen_ldst_multiple(ctx, SWM32, swm_convert[(ctx->opcode >> 4) & 0x3],
29, offset << 2);
}
break;
case JR16 + 0:
case JR16 + 1:
{
int reg = ctx->opcode & 0x1f;
gen_compute_branch(ctx, OPC_JR, 2, reg, 0, 0);
}
*is_branch = 1;
break;
case JRC16 + 0:
case JRC16 + 1:
{
int reg = ctx->opcode & 0x1f;
gen_compute_branch(ctx, OPC_JR, 2, reg, 0, 0);
/* Let normal delay slot handling in our caller take us
to the branch target. */
}
break;
case JALR16 + 0:
case JALR16 + 1:
opc = OPC_JALR;
goto do_jalr;
case JALR16S + 0:
case JALR16S + 1:
opc = OPC_JALRS;
do_jalr:
{
int reg = ctx->opcode & 0x1f;
gen_compute_branch(ctx, opc, 2, reg, 31, 0);
}
*is_branch = 1;
break;
case MFHI16 + 0:
case MFHI16 + 1:
gen_HILO(ctx, OPC_MFHI, uMIPS_RS5(ctx->opcode));
break;
case MFLO16 + 0:
case MFLO16 + 1:
gen_HILO(ctx, OPC_MFLO, uMIPS_RS5(ctx->opcode));
break;
case BREAK16:
generate_exception(ctx, EXCP_BREAK);
break;
case SDBBP16:
/* XXX: not clear which exception should be raised
* when in debug mode...
*/
check_insn(env, ctx, ISA_MIPS32);
if (!(ctx->hflags & MIPS_HFLAG_DM)) {
generate_exception(ctx, EXCP_DBp);
} else {
generate_exception(ctx, EXCP_DBp);
}
break;
case JRADDIUSP + 0:
case JRADDIUSP + 1:
{
int imm = ZIMM(ctx->opcode, 0, 5);
gen_compute_branch(ctx, OPC_JR, 2, 31, 0, 0);
gen_arith_imm(env, ctx, OPC_ADDIU, 29, 29, imm << 2);
/* Let normal delay slot handling in our caller take us
to the branch target. */
}
break;
default:
generate_exception(ctx, EXCP_RI);
break;
}
}
static void gen_ldxs (DisasContext *ctx, int base, int index, int rd)
{
TCGv t0 = tcg_temp_new();
TCGv t1 = tcg_temp_new();
gen_load_gpr(t0, base);
if (index != 0) {
gen_load_gpr(t1, index);
tcg_gen_shli_tl(t1, t1, 2);
gen_op_addr_add(ctx, t0, t1, t0);
}
save_cpu_state(ctx, 0);
op_ldst_lw(t1, t0, ctx);
gen_store_gpr(t1, rd);
tcg_temp_free(t0);
tcg_temp_free(t1);
}
static void gen_ldst_pair (DisasContext *ctx, uint32_t opc, int rd,
int base, int16_t offset)
{
const char *opn = "ldst_pair";
TCGv t0, t1;
if (ctx->hflags & MIPS_HFLAG_BMASK || rd == 31 || rd == base) {
generate_exception(ctx, EXCP_RI);
return;
}
t0 = tcg_temp_new();
t1 = tcg_temp_new();
gen_base_offset_addr(ctx, t0, base, offset);
switch (opc) {
case LWP:
save_cpu_state(ctx, 0);
op_ldst_lw(t1, t0, ctx);
gen_store_gpr(t1, rd);
tcg_gen_movi_tl(t1, 4);
gen_op_addr_add(ctx, t0, t0, t1);
op_ldst_lw(t1, t0, ctx);
gen_store_gpr(t1, rd+1);
opn = "lwp";
break;
case SWP:
save_cpu_state(ctx, 1);
gen_load_gpr(t1, rd);
op_ldst_sw(t1, t0, ctx);
tcg_gen_movi_tl(t1, 4);
gen_op_addr_add(ctx, t0, t0, t1);
gen_load_gpr(t1, rd+1);
op_ldst_sw(t1, t0, ctx);
opn = "swp";
break;
#ifdef TARGET_MIPS64
case LDP:
save_cpu_state(ctx, 0);
op_ldst_ld(t1, t0, ctx);
gen_store_gpr(t1, rd);
tcg_gen_movi_tl(t1, 8);
gen_op_addr_add(ctx, t0, t0, t1);
op_ldst_ld(t1, t0, ctx);
gen_store_gpr(t1, rd+1);
opn = "ldp";
break;
case SDP:
save_cpu_state(ctx, 1);
gen_load_gpr(t1, rd);
op_ldst_sd(t1, t0, ctx);
tcg_gen_movi_tl(t1, 8);
gen_op_addr_add(ctx, t0, t0, t1);
gen_load_gpr(t1, rd+1);
op_ldst_sd(t1, t0, ctx);
opn = "sdp";
break;
#endif
}
MIPS_DEBUG("%s, %s, %d(%s)", opn, regnames[rd], offset, regnames[base]);
tcg_temp_free(t0);
tcg_temp_free(t1);
}
static void gen_pool32axf (CPUState *env, DisasContext *ctx, int rt, int rs,
int *is_branch)
{
int extension = (ctx->opcode >> 6) & 0x3f;
int minor = (ctx->opcode >> 12) & 0xf;
uint32_t mips32_op;
switch (extension) {
case TEQ:
mips32_op = OPC_TEQ;
goto do_trap;
case TGE:
mips32_op = OPC_TGE;
goto do_trap;
case TGEU:
mips32_op = OPC_TGEU;
goto do_trap;
case TLT:
mips32_op = OPC_TLT;
goto do_trap;
case TLTU:
mips32_op = OPC_TLTU;
goto do_trap;
case TNE:
mips32_op = OPC_TNE;
do_trap:
gen_trap(ctx, mips32_op, rs, rt, -1);
break;
#ifndef CONFIG_USER_ONLY
case MFC0:
case MFC0 + 32:
if (rt == 0) {
/* Treat as NOP. */
break;
}
gen_mfc0(env, ctx, cpu_gpr[rt], rs, (ctx->opcode >> 11) & 0x7);
break;
case MTC0:
case MTC0 + 32:
{
TCGv t0 = tcg_temp_new();
gen_load_gpr(t0, rt);
gen_mtc0(env, ctx, t0, rs, (ctx->opcode >> 11) & 0x7);
tcg_temp_free(t0);
}
break;
#endif
case 0x2c:
switch (minor) {
case SEB:
gen_bshfl(ctx, OPC_SEB, rs, rt);
break;
case SEH:
gen_bshfl(ctx, OPC_SEH, rs, rt);
break;
case CLO:
mips32_op = OPC_CLO;
goto do_cl;
case CLZ:
mips32_op = OPC_CLZ;
do_cl:
check_insn(env, ctx, ISA_MIPS32);
gen_cl(ctx, mips32_op, rt, rs);
break;
case RDHWR:
gen_rdhwr(env, ctx, rt, rs);
break;
case WSBH:
gen_bshfl(ctx, OPC_WSBH, rs, rt);
break;
case MULT:
mips32_op = OPC_MULT;
goto do_muldiv;
case MULTU:
mips32_op = OPC_MULTU;
goto do_muldiv;
case DIV:
mips32_op = OPC_DIV;
goto do_muldiv;
case DIVU:
mips32_op = OPC_DIVU;
goto do_muldiv;
case MADD:
mips32_op = OPC_MADD;
goto do_muldiv;
case MADDU:
mips32_op = OPC_MADDU;
goto do_muldiv;
case MSUB:
mips32_op = OPC_MSUB;
goto do_muldiv;
case MSUBU:
mips32_op = OPC_MSUBU;
do_muldiv:
check_insn(env, ctx, ISA_MIPS32);
gen_muldiv(ctx, mips32_op, rs, rt);
break;
default:
goto pool32axf_invalid;
}
break;
case 0x34:
switch (minor) {
case MFC2:
case MTC2:
case MFHC2:
case MTHC2:
case CFC2:
case CTC2:
generate_exception_err(ctx, EXCP_CpU, 2);
break;
default:
goto pool32axf_invalid;
}
break;
case 0x3c:
switch (minor) {
case JALR:
case JALR_HB:
gen_compute_branch (ctx, OPC_JALR, 4, rs, rt, 0);
*is_branch = 1;
break;
case JALRS:
case JALRS_HB:
gen_compute_branch (ctx, OPC_JALRS, 4, rs, rt, 0);
*is_branch = 1;
break;
default:
goto pool32axf_invalid;
}
break;
case 0x05:
switch (minor) {
case RDPGPR:
check_insn(env, ctx, ISA_MIPS32R2);
gen_load_srsgpr(rt, rs);
break;
case WRPGPR:
check_insn(env, ctx, ISA_MIPS32R2);
gen_store_srsgpr(rt, rs);
break;
default:
goto pool32axf_invalid;
}
break;
#ifndef CONFIG_USER_ONLY
case 0x0d:
switch (minor) {
case TLBP:
mips32_op = OPC_TLBP;
goto do_cp0;
case TLBR:
mips32_op = OPC_TLBR;
goto do_cp0;
case TLBWI:
mips32_op = OPC_TLBWI;
goto do_cp0;
case TLBWR:
mips32_op = OPC_TLBWR;
goto do_cp0;
case WAIT:
mips32_op = OPC_WAIT;
goto do_cp0;
case DERET:
mips32_op = OPC_DERET;
goto do_cp0;
case ERET:
mips32_op = OPC_ERET;
do_cp0:
gen_cp0(env, ctx, mips32_op, rt, rs);
break;
default:
goto pool32axf_invalid;
}
break;
case 0x1d:
switch (minor) {
case DI:
{
TCGv t0 = tcg_temp_new();
save_cpu_state(ctx, 1);
gen_helper_di(t0);
gen_store_gpr(t0, rs);
/* Stop translation as we may have switched the execution mode */
ctx->bstate = BS_STOP;
tcg_temp_free(t0);
}
break;
case EI:
{
TCGv t0 = tcg_temp_new();
save_cpu_state(ctx, 1);
gen_helper_ei(t0);
gen_store_gpr(t0, rs);
/* Stop translation as we may have switched the execution mode */
ctx->bstate = BS_STOP;
tcg_temp_free(t0);
}
break;
default:
goto pool32axf_invalid;
}
break;
#endif
case 0x2d:
switch (minor) {
case SYNC:
/* NOP */
break;
case SYSCALL:
generate_exception(ctx, EXCP_SYSCALL);
ctx->bstate = BS_STOP;
break;
case SDBBP:
check_insn(env, ctx, ISA_MIPS32);
if (!(ctx->hflags & MIPS_HFLAG_DM)) {
generate_exception(ctx, EXCP_DBp);
} else {
generate_exception(ctx, EXCP_DBp);
}
break;
default:
goto pool32axf_invalid;
}
break;
case 0x35:
switch (minor) {
case MFHI32:
gen_HILO(ctx, OPC_MFHI, rs);
break;
case MFLO32:
gen_HILO(ctx, OPC_MFLO, rs);
break;
case MTHI32:
gen_HILO(ctx, OPC_MTHI, rs);
break;
case MTLO32:
gen_HILO(ctx, OPC_MTLO, rs);
break;
default:
goto pool32axf_invalid;
}
break;
default:
pool32axf_invalid:
MIPS_INVAL("pool32axf");
generate_exception(ctx, EXCP_RI);
break;
}
}
/* Values for microMIPS fmt field. Variable-width, depending on which
formats the instruction supports. */
enum {
FMT_SD_S = 0,
FMT_SD_D = 1,
FMT_SDPS_S = 0,
FMT_SDPS_D = 1,
FMT_SDPS_PS = 2,
FMT_SWL_S = 0,
FMT_SWL_W = 1,
FMT_SWL_L = 2,
FMT_DWL_D = 0,
FMT_DWL_W = 1,
FMT_DWL_L = 2
};
static void gen_pool32fxf (CPUState *env, DisasContext *ctx, int rt, int rs)
{
int extension = (ctx->opcode >> 6) & 0x3ff;
uint32_t mips32_op;
#define FLOAT_1BIT_FMT(opc, fmt) (fmt << 8) | opc
#define FLOAT_2BIT_FMT(opc, fmt) (fmt << 7) | opc
#define COND_FLOAT_MOV(opc, cond) (cond << 7) | opc
switch (extension) {
case FLOAT_1BIT_FMT(CFC1, 0):
mips32_op = OPC_CFC1;
goto do_cp1;
case FLOAT_1BIT_FMT(CTC1, 0):
mips32_op = OPC_CTC1;
goto do_cp1;
case FLOAT_1BIT_FMT(MFC1, 0):
mips32_op = OPC_MFC1;
goto do_cp1;
case FLOAT_1BIT_FMT(MTC1, 0):
mips32_op = OPC_MTC1;
goto do_cp1;
case FLOAT_1BIT_FMT(MFHC1, 0):
mips32_op = OPC_MFHC1;
goto do_cp1;
case FLOAT_1BIT_FMT(MTHC1, 0):
mips32_op = OPC_MTHC1;
do_cp1:
gen_cp1(ctx, mips32_op, rt, rs);
break;
/* Reciprocal square root */
case FLOAT_1BIT_FMT(RSQRT_FMT, FMT_SD_S):
mips32_op = OPC_RSQRT_S;
goto do_unaryfp;
case FLOAT_1BIT_FMT(RSQRT_FMT, FMT_SD_D):
mips32_op = OPC_RSQRT_D;
goto do_unaryfp;
/* Square root */
case FLOAT_1BIT_FMT(SQRT_FMT, FMT_SD_S):
mips32_op = OPC_SQRT_S;
goto do_unaryfp;
case FLOAT_1BIT_FMT(SQRT_FMT, FMT_SD_D):
mips32_op = OPC_SQRT_D;
goto do_unaryfp;
/* Reciprocal */
case FLOAT_1BIT_FMT(RECIP_FMT, FMT_SD_S):
mips32_op = OPC_RECIP_S;
goto do_unaryfp;
case FLOAT_1BIT_FMT(RECIP_FMT, FMT_SD_D):
mips32_op = OPC_RECIP_D;
goto do_unaryfp;
/* Floor */
case FLOAT_1BIT_FMT(FLOOR_L, FMT_SD_S):
mips32_op = OPC_FLOOR_L_S;
goto do_unaryfp;
case FLOAT_1BIT_FMT(FLOOR_L, FMT_SD_D):
mips32_op = OPC_FLOOR_L_D;
goto do_unaryfp;
case FLOAT_1BIT_FMT(FLOOR_W, FMT_SD_S):
mips32_op = OPC_FLOOR_W_S;
goto do_unaryfp;
case FLOAT_1BIT_FMT(FLOOR_W, FMT_SD_D):
mips32_op = OPC_FLOOR_W_D;
goto do_unaryfp;
/* Ceiling */
case FLOAT_1BIT_FMT(CEIL_L, FMT_SD_S):
mips32_op = OPC_CEIL_L_S;
goto do_unaryfp;
case FLOAT_1BIT_FMT(CEIL_L, FMT_SD_D):
mips32_op = OPC_CEIL_L_D;
goto do_unaryfp;
case FLOAT_1BIT_FMT(CEIL_W, FMT_SD_S):
mips32_op = OPC_CEIL_W_S;
goto do_unaryfp;
case FLOAT_1BIT_FMT(CEIL_W, FMT_SD_D):
mips32_op = OPC_CEIL_W_D;
goto do_unaryfp;
/* Truncation */
case FLOAT_1BIT_FMT(TRUNC_L, FMT_SD_S):
mips32_op = OPC_TRUNC_L_S;
goto do_unaryfp;
case FLOAT_1BIT_FMT(TRUNC_L, FMT_SD_D):
mips32_op = OPC_TRUNC_L_D;
goto do_unaryfp;
case FLOAT_1BIT_FMT(TRUNC_W, FMT_SD_S):
mips32_op = OPC_TRUNC_W_S;
goto do_unaryfp;
case FLOAT_1BIT_FMT(TRUNC_W, FMT_SD_D):
mips32_op = OPC_TRUNC_W_D;
goto do_unaryfp;
/* Round */
case FLOAT_1BIT_FMT(ROUND_L, FMT_SD_S):
mips32_op = OPC_ROUND_L_S;
goto do_unaryfp;
case FLOAT_1BIT_FMT(ROUND_L, FMT_SD_D):
mips32_op = OPC_ROUND_L_D;
goto do_unaryfp;
case FLOAT_1BIT_FMT(ROUND_W, FMT_SD_S):
mips32_op = OPC_ROUND_W_S;
goto do_unaryfp;
case FLOAT_1BIT_FMT(ROUND_W, FMT_SD_D):
mips32_op = OPC_ROUND_W_D;
goto do_unaryfp;
/* Integer to floating-point conversion */
case FLOAT_1BIT_FMT(CVT_L, FMT_SD_S):
mips32_op = OPC_CVT_L_S;
goto do_unaryfp;
case FLOAT_1BIT_FMT(CVT_L, FMT_SD_D):
mips32_op = OPC_CVT_L_D;
goto do_unaryfp;
case FLOAT_1BIT_FMT(CVT_W, FMT_SD_S):
mips32_op = OPC_CVT_W_S;
goto do_unaryfp;
case FLOAT_1BIT_FMT(CVT_W, FMT_SD_D):
mips32_op = OPC_CVT_W_D;
goto do_unaryfp;
/* Paired-foo conversions */
case FLOAT_1BIT_FMT(CVT_S_PL, 0):
mips32_op = OPC_CVT_S_PL;
goto do_unaryfp;
case FLOAT_1BIT_FMT(CVT_S_PU, 0):
mips32_op = OPC_CVT_S_PU;
goto do_unaryfp;
case FLOAT_1BIT_FMT(CVT_PW_PS, 0):
mips32_op = OPC_CVT_PW_PS;
goto do_unaryfp;
case FLOAT_1BIT_FMT(CVT_PS_PW, 0):
mips32_op = OPC_CVT_PS_PW;
goto do_unaryfp;
/* Floating-point moves */
case FLOAT_2BIT_FMT(MOV_FMT, FMT_SDPS_S):
mips32_op = OPC_MOV_S;
goto do_unaryfp;
case FLOAT_2BIT_FMT(MOV_FMT, FMT_SDPS_D):
mips32_op = OPC_MOV_D;
goto do_unaryfp;
case FLOAT_2BIT_FMT(MOV_FMT, FMT_SDPS_PS):
mips32_op = OPC_MOV_PS;
goto do_unaryfp;
/* Absolute value */
case FLOAT_2BIT_FMT(ABS_FMT, FMT_SDPS_S):
mips32_op = OPC_ABS_S;
goto do_unaryfp;
case FLOAT_2BIT_FMT(ABS_FMT, FMT_SDPS_D):
mips32_op = OPC_ABS_D;
goto do_unaryfp;
case FLOAT_2BIT_FMT(ABS_FMT, FMT_SDPS_PS):
mips32_op = OPC_ABS_PS;
goto do_unaryfp;
/* Negation */
case FLOAT_2BIT_FMT(NEG_FMT, FMT_SDPS_S):
mips32_op = OPC_NEG_S;
goto do_unaryfp;
case FLOAT_2BIT_FMT(NEG_FMT, FMT_SDPS_D):
mips32_op = OPC_NEG_D;
goto do_unaryfp;
case FLOAT_2BIT_FMT(NEG_FMT, FMT_SDPS_PS):
mips32_op = OPC_NEG_PS;
goto do_unaryfp;
/* Reciprocal square root step */
case FLOAT_2BIT_FMT(RSQRT1_FMT, FMT_SDPS_S):
mips32_op = OPC_RSQRT1_S;
goto do_unaryfp;
case FLOAT_2BIT_FMT(RSQRT1_FMT, FMT_SDPS_D):
mips32_op = OPC_RSQRT1_D;
goto do_unaryfp;
case FLOAT_2BIT_FMT(RSQRT1_FMT, FMT_SDPS_PS):
mips32_op = OPC_RSQRT1_PS;
goto do_unaryfp;
/* Reciprocal step */
case FLOAT_2BIT_FMT(RECIP1_FMT, FMT_SDPS_S):
mips32_op = OPC_RECIP1_S;
goto do_unaryfp;
case FLOAT_2BIT_FMT(RECIP1_FMT, FMT_SDPS_D):
mips32_op = OPC_RECIP1_S;
goto do_unaryfp;
case FLOAT_2BIT_FMT(RECIP1_FMT, FMT_SDPS_PS):
mips32_op = OPC_RECIP1_PS;
goto do_unaryfp;
/* Conversions from double */
case FLOAT_2BIT_FMT(CVT_D, FMT_SWL_S):
mips32_op = OPC_CVT_D_S;
goto do_unaryfp;
case FLOAT_2BIT_FMT(CVT_D, FMT_SWL_W):
mips32_op = OPC_CVT_D_W;
goto do_unaryfp;
case FLOAT_2BIT_FMT(CVT_D, FMT_SWL_L):
mips32_op = OPC_CVT_D_L;
goto do_unaryfp;
/* Conversions from single */
case FLOAT_2BIT_FMT(CVT_S, FMT_DWL_D):
mips32_op = OPC_CVT_S_D;
goto do_unaryfp;
case FLOAT_2BIT_FMT(CVT_S, FMT_DWL_W):
mips32_op = OPC_CVT_S_W;
goto do_unaryfp;
case FLOAT_2BIT_FMT(CVT_S, FMT_DWL_L):
mips32_op = OPC_CVT_S_L;
do_unaryfp:
gen_farith(ctx, mips32_op, -1, rs, rt, 0);
break;
/* Conditional moves on floating-point codes */
case COND_FLOAT_MOV(MOVT, 0):
case COND_FLOAT_MOV(MOVT, 1):
case COND_FLOAT_MOV(MOVT, 2):
case COND_FLOAT_MOV(MOVT, 3):
case COND_FLOAT_MOV(MOVT, 4):
case COND_FLOAT_MOV(MOVT, 5):
case COND_FLOAT_MOV(MOVT, 6):
case COND_FLOAT_MOV(MOVT, 7):
gen_movci(ctx, rt, rs, (ctx->opcode >> 13) & 0x7, 1);
break;
case COND_FLOAT_MOV(MOVF, 0):
case COND_FLOAT_MOV(MOVF, 1):
case COND_FLOAT_MOV(MOVF, 2):
case COND_FLOAT_MOV(MOVF, 3):
case COND_FLOAT_MOV(MOVF, 4):
case COND_FLOAT_MOV(MOVF, 5):
case COND_FLOAT_MOV(MOVF, 6):
case COND_FLOAT_MOV(MOVF, 7):
gen_movci(ctx, rt, rs, (ctx->opcode >> 13) & 0x7, 0);
break;
default:
MIPS_INVAL("pool32fxf");
generate_exception(ctx, EXCP_RI);
break;
}
}
static void decode_micromips32_opc (CPUState *env, DisasContext *ctx,
uint16_t insn_hw1, int *is_branch)
{
int32_t offset;
uint16_t insn;
int rt, rs, rd, rr;
int16_t imm;
uint32_t op, minor, mips32_op;
uint32_t cond, fmt, cc;
insn = lduw_code(ctx->pc + 2);
ctx->opcode = (ctx->opcode << 16) | insn;
rt = (ctx->opcode >> 21) & 0x1f;
rs = (ctx->opcode >> 16) & 0x1f;
rd = (ctx->opcode >> 11) & 0x1f;
rr = (ctx->opcode >> 6) & 0x1f;
imm = (int16_t) ctx->opcode;
op = (ctx->opcode >> 26) & 0x3f;
switch (op) {
case POOL32A:
minor = ctx->opcode & 0x3f;
switch (minor) {
case 0x00:
minor = (ctx->opcode >> 6) & 0xf;
switch (minor) {
case SLL32:
mips32_op = OPC_SLL;
goto do_shifti;
case SRA:
mips32_op = OPC_SRA;
goto do_shifti;
case SRL32:
mips32_op = OPC_SRL;
goto do_shifti;
case ROTR:
mips32_op = OPC_ROTR;
do_shifti:
gen_shift_imm(env, ctx, mips32_op, rt, rs, rd);
break;
default:
goto pool32a_invalid;
}
break;
case 0x10:
minor = (ctx->opcode >> 6) & 0xf;
switch (minor) {
/* Arithmetic */
case ADD:
mips32_op = OPC_ADD;
goto do_arith;
case ADDU32:
mips32_op = OPC_ADDU;
goto do_arith;
case SUB:
mips32_op = OPC_SUB;
goto do_arith;
case SUBU32:
mips32_op = OPC_SUBU;
goto do_arith;
case MUL:
mips32_op = OPC_MUL;
do_arith:
gen_arith(env, ctx, mips32_op, rd, rs, rt);
break;
/* Shifts */
case SLLV:
mips32_op = OPC_SLLV;
goto do_shift;
case SRLV:
mips32_op = OPC_SRLV;
goto do_shift;
case SRAV:
mips32_op = OPC_SRAV;
goto do_shift;
case ROTRV:
mips32_op = OPC_ROTRV;
do_shift:
gen_shift(env, ctx, mips32_op, rd, rs, rt);
break;
/* Logical operations */
case AND:
mips32_op = OPC_AND;
goto do_logic;
case OR32:
mips32_op = OPC_OR;
goto do_logic;
case NOR:
mips32_op = OPC_NOR;
goto do_logic;
case XOR32:
mips32_op = OPC_XOR;
do_logic:
gen_logic(env, mips32_op, rd, rs, rt);
break;
/* Set less than */
case SLT:
mips32_op = OPC_SLT;
goto do_slt;
case SLTU:
mips32_op = OPC_SLTU;
do_slt:
gen_slt(env, mips32_op, rd, rs, rt);
break;
default:
goto pool32a_invalid;
}
break;
case 0x18:
minor = (ctx->opcode >> 6) & 0xf;
switch (minor) {
/* Conditional moves */
case MOVN:
mips32_op = OPC_MOVN;
goto do_cmov;
case MOVZ:
mips32_op = OPC_MOVZ;
do_cmov:
gen_cond_move(env, mips32_op, rd, rs, rt);
break;
case LWXS:
gen_ldxs(ctx, rs, rt, rd);
break;
default:
goto pool32a_invalid;
}
break;
case INS:
gen_bitops(ctx, OPC_INS, rt, rs, rr, rd);
return;
case EXT:
gen_bitops(ctx, OPC_EXT, rt, rs, rr, rd);
return;
case POOL32AXF:
gen_pool32axf(env, ctx, rt, rs, is_branch);
break;
case 0x07:
generate_exception(ctx, EXCP_BREAK);
break;
default:
pool32a_invalid:
MIPS_INVAL("pool32a");
generate_exception(ctx, EXCP_RI);
break;
}
break;
case POOL32B:
minor = (ctx->opcode >> 12) & 0xf;
switch (minor) {
case CACHE:
/* Treat as no-op. */
break;
case LWC2:
case SWC2:
/* COP2: Not implemented. */
generate_exception_err(ctx, EXCP_CpU, 2);
break;
case LWP:
case SWP:
#ifdef TARGET_MIPS64
case LDP:
case SDP:
#endif
gen_ldst_pair(ctx, minor, rt, rs, SIMM(ctx->opcode, 0, 12));
break;
case LWM32:
case SWM32:
#ifdef TARGET_MIPS64
case LDM:
case SDM:
#endif
gen_ldst_multiple(ctx, minor, rt, rs, SIMM(ctx->opcode, 0, 12));
break;
default:
MIPS_INVAL("pool32b");
generate_exception(ctx, EXCP_RI);
break;
}
break;
case POOL32F:
if (env->CP0_Config1 & (1 << CP0C1_FP)) {
minor = ctx->opcode & 0x3f;
check_cp1_enabled(ctx);
switch (minor) {
case ALNV_PS:
mips32_op = OPC_ALNV_PS;
goto do_madd;
case MADD_S:
mips32_op = OPC_MADD_S;
goto do_madd;
case MADD_D:
mips32_op = OPC_MADD_D;
goto do_madd;
case MADD_PS:
mips32_op = OPC_MADD_PS;
goto do_madd;
case MSUB_S:
mips32_op = OPC_MSUB_S;
goto do_madd;
case MSUB_D:
mips32_op = OPC_MSUB_D;
goto do_madd;
case MSUB_PS:
mips32_op = OPC_MSUB_PS;
goto do_madd;
case NMADD_S:
mips32_op = OPC_NMADD_S;
goto do_madd;
case NMADD_D:
mips32_op = OPC_NMADD_D;
goto do_madd;
case NMADD_PS:
mips32_op = OPC_NMADD_PS;
goto do_madd;
case NMSUB_S:
mips32_op = OPC_NMSUB_S;
goto do_madd;
case NMSUB_D:
mips32_op = OPC_NMSUB_D;
goto do_madd;
case NMSUB_PS:
mips32_op = OPC_NMSUB_PS;
do_madd:
gen_flt3_arith(ctx, mips32_op, rd, rr, rs, rt);
break;
case CABS_COND_FMT:
cond = (ctx->opcode >> 6) & 0xf;
cc = (ctx->opcode >> 13) & 0x7;
fmt = (ctx->opcode >> 10) & 0x3;
switch (fmt) {
case 0x0:
gen_cmpabs_s(ctx, cond, rt, rs, cc);
break;
case 0x1:
gen_cmpabs_d(ctx, cond, rt, rs, cc);
break;
case 0x2:
gen_cmpabs_ps(ctx, cond, rt, rs, cc);
break;
default:
goto pool32f_invalid;
}
break;
case C_COND_FMT:
cond = (ctx->opcode >> 6) & 0xf;
cc = (ctx->opcode >> 13) & 0x7;
fmt = (ctx->opcode >> 10) & 0x3;
switch (fmt) {
case 0x0:
gen_cmp_s(ctx, cond, rt, rs, cc);
break;
case 0x1:
gen_cmp_d(ctx, cond, rt, rs, cc);
break;
case 0x2:
gen_cmp_ps(ctx, cond, rt, rs, cc);
break;
default:
goto pool32f_invalid;
}
break;
case POOL32FXF:
gen_pool32fxf(env, ctx, rt, rs);
break;
case 0x00:
/* PLL foo */
switch ((ctx->opcode >> 6) & 0x7) {
case PLL_PS:
mips32_op = OPC_PLL_PS;
goto do_ps;
case PLU_PS:
mips32_op = OPC_PLU_PS;
goto do_ps;
case PUL_PS:
mips32_op = OPC_PUL_PS;
goto do_ps;
case PUU_PS:
mips32_op = OPC_PUU_PS;
goto do_ps;
case CVT_PS_S:
mips32_op = OPC_CVT_PS_S;
do_ps:
gen_farith(ctx, mips32_op, rt, rs, rd, 0);
break;
default:
goto pool32f_invalid;
}
break;
case 0x08:
/* [LS][WDU]XC1 */
switch ((ctx->opcode >> 6) & 0x7) {
case LWXC1:
mips32_op = OPC_LWXC1;
goto do_ldst_cp1;
case SWXC1:
mips32_op = OPC_SWXC1;
goto do_ldst_cp1;
case LDXC1:
mips32_op = OPC_LDXC1;
goto do_ldst_cp1;
case SDXC1:
mips32_op = OPC_SDXC1;
goto do_ldst_cp1;
case LUXC1:
mips32_op = OPC_LUXC1;
goto do_ldst_cp1;
case SUXC1:
mips32_op = OPC_SUXC1;
do_ldst_cp1:
gen_flt3_ldst(ctx, mips32_op, rd, rd, rt, rs);
break;
default:
goto pool32f_invalid;
}
break;
case 0x18:
/* 3D insns */
fmt = (ctx->opcode >> 9) & 0x3;
switch ((ctx->opcode >> 6) & 0x7) {
case RSQRT2_FMT:
switch (fmt) {
case FMT_SDPS_S:
mips32_op = OPC_RSQRT2_S;
goto do_3d;
case FMT_SDPS_D:
mips32_op = OPC_RSQRT2_D;
goto do_3d;
case FMT_SDPS_PS:
mips32_op = OPC_RSQRT2_PS;
goto do_3d;
default:
goto pool32f_invalid;
}
break;
case RECIP2_FMT:
switch (fmt) {
case FMT_SDPS_S:
mips32_op = OPC_RECIP2_S;
goto do_3d;
case FMT_SDPS_D:
mips32_op = OPC_RECIP2_D;
goto do_3d;
case FMT_SDPS_PS:
mips32_op = OPC_RECIP2_PS;
goto do_3d;
default:
goto pool32f_invalid;
}
break;
case ADDR_PS:
mips32_op = OPC_ADDR_PS;
goto do_3d;
case MULR_PS:
mips32_op = OPC_MULR_PS;
do_3d:
gen_farith(ctx, mips32_op, rt, rs, rd, 0);
break;
default:
goto pool32f_invalid;
}
break;
case 0x20:
/* MOV[FT].fmt and PREFX */
cc = (ctx->opcode >> 13) & 0x7;
fmt = (ctx->opcode >> 9) & 0x3;
switch ((ctx->opcode >> 6) & 0x7) {
case MOVF_FMT:
switch (fmt) {
case FMT_SDPS_S:
gen_movcf_s(rs, rt, cc, 0);
break;
case FMT_SDPS_D:
gen_movcf_d(ctx, rs, rt, cc, 0);
break;
case FMT_SDPS_PS:
gen_movcf_ps(rs, rt, cc, 0);
break;
default:
goto pool32f_invalid;
}
break;
case MOVT_FMT:
switch (fmt) {
case FMT_SDPS_S:
gen_movcf_s(rs, rt, cc, 1);
break;
case FMT_SDPS_D:
gen_movcf_d(ctx, rs, rt, cc, 1);
break;
case FMT_SDPS_PS:
gen_movcf_ps(rs, rt, cc, 1);
break;
default:
goto pool32f_invalid;
}
break;
case PREFX:
break;
default:
goto pool32f_invalid;
}
break;
#define FINSN_3ARG_SDPS(prfx) \
switch ((ctx->opcode >> 8) & 0x3) { \
case FMT_SDPS_S: \
mips32_op = OPC_##prfx##_S; \
goto do_fpop; \
case FMT_SDPS_D: \
mips32_op = OPC_##prfx##_D; \
goto do_fpop; \
case FMT_SDPS_PS: \
mips32_op = OPC_##prfx##_PS; \
goto do_fpop; \
default: \
goto pool32f_invalid; \
}
case 0x30:
/* regular FP ops */
switch ((ctx->opcode >> 6) & 0x3) {
case ADD_FMT:
FINSN_3ARG_SDPS(ADD);
break;
case SUB_FMT:
FINSN_3ARG_SDPS(SUB);
break;
case MUL_FMT:
FINSN_3ARG_SDPS(MUL);
break;
case DIV_FMT:
fmt = (ctx->opcode >> 8) & 0x3;
if (fmt == 1) {
mips32_op = OPC_DIV_D;
} else if (fmt == 0) {
mips32_op = OPC_DIV_S;
} else {
goto pool32f_invalid;
}
goto do_fpop;
default:
goto pool32f_invalid;
}
break;
case 0x38:
/* cmovs */
switch ((ctx->opcode >> 6) & 0x3) {
case MOVN_FMT:
FINSN_3ARG_SDPS(MOVN);
break;
case MOVZ_FMT:
FINSN_3ARG_SDPS(MOVZ);
break;
default:
goto pool32f_invalid;
}
break;
do_fpop:
gen_farith(ctx, mips32_op, rt, rs, rd, 0);
break;
default:
pool32f_invalid:
MIPS_INVAL("pool32f");
generate_exception(ctx, EXCP_RI);
break;
}
} else {
generate_exception_err(ctx, EXCP_CpU, 1);
}
break;
case POOL32I:
minor = (ctx->opcode >> 21) & 0x1f;
switch (minor) {
case BLTZ:
mips32_op = OPC_BLTZ;
goto do_branch;
case BLTZAL:
mips32_op = OPC_BLTZAL;
goto do_branch;
case BLTZALS:
mips32_op = OPC_BLTZALS;
goto do_branch;
case BGEZ:
mips32_op = OPC_BGEZ;
goto do_branch;
case BGEZAL:
mips32_op = OPC_BGEZAL;
goto do_branch;
case BGEZALS:
mips32_op = OPC_BGEZALS;
goto do_branch;
case BLEZ:
mips32_op = OPC_BLEZ;
goto do_branch;
case BGTZ:
mips32_op = OPC_BGTZ;
do_branch:
gen_compute_branch(ctx, mips32_op, 4, rs, -1, imm << 1);
*is_branch = 1;
break;
/* Traps */
case TLTI:
mips32_op = OPC_TLTI;
goto do_trapi;
case TGEI:
mips32_op = OPC_TGEI;
goto do_trapi;
case TLTIU:
mips32_op = OPC_TLTIU;
goto do_trapi;
case TGEIU:
mips32_op = OPC_TGEIU;
goto do_trapi;
case TNEI:
mips32_op = OPC_TNEI;
goto do_trapi;
case TEQI:
mips32_op = OPC_TEQI;
do_trapi:
gen_trap(ctx, mips32_op, rs, -1, imm);
break;
case BNEZC:
case BEQZC:
gen_compute_branch(ctx, minor == BNEZC ? OPC_BNE : OPC_BEQ,
4, rs, 0, imm << 1);
/* Compact branches don't have a delay slot, so just let
the normal delay slot handling take us to the branch
target. */
break;
case LUI:
gen_logic_imm(env, OPC_LUI, rs, -1, imm);
break;
case SYNCI:
break;
case BC2F:
case BC2T:
/* COP2: Not implemented. */
generate_exception_err(ctx, EXCP_CpU, 2);
break;
case BC1F:
mips32_op = (ctx->opcode & (1 << 16)) ? OPC_BC1FANY2 : OPC_BC1F;
goto do_cp1branch;
case BC1T:
mips32_op = (ctx->opcode & (1 << 16)) ? OPC_BC1TANY2 : OPC_BC1T;
goto do_cp1branch;
case BC1ANY4F:
mips32_op = OPC_BC1FANY4;
goto do_cp1mips3d;
case BC1ANY4T:
mips32_op = OPC_BC1TANY4;
do_cp1mips3d:
check_cop1x(ctx);
check_insn(env, ctx, ASE_MIPS3D);
/* Fall through */
do_cp1branch:
gen_compute_branch1(env, ctx, mips32_op,
(ctx->opcode >> 18) & 0x7, imm << 1);
*is_branch = 1;
break;
case BPOSGE64:
case BPOSGE32:
/* MIPS DSP: not implemented */
/* Fall through */
default:
MIPS_INVAL("pool32i");
generate_exception(ctx, EXCP_RI);
break;
}
break;
case POOL32C:
minor = (ctx->opcode >> 12) & 0xf;
switch (minor) {
case LWL:
mips32_op = OPC_LWL;
goto do_ldst_lr;
case SWL:
mips32_op = OPC_SWL;
goto do_ldst_lr;
case LWR:
mips32_op = OPC_LWR;
goto do_ldst_lr;
case SWR:
mips32_op = OPC_SWR;
goto do_ldst_lr;
#if defined(TARGET_MIPS64)
case LDL:
mips32_op = OPC_LDL;
goto do_ldst_lr;
case SDL:
mips32_op = OPC_SDL;
goto do_ldst_lr;
case LDR:
mips32_op = OPC_LDR;
goto do_ldst_lr;
case SDR:
mips32_op = OPC_SDR;
goto do_ldst_lr;
case LWU:
mips32_op = OPC_LWU;
goto do_ldst_lr;
case LLD:
mips32_op = OPC_LLD;
goto do_ldst_lr;
#endif
case LL:
mips32_op = OPC_LL;
do_ldst_lr:
gen_ldst(ctx, mips32_op, rt, rs, SIMM(ctx->opcode, 0, 12));
break;
case SC:
gen_st_cond(ctx, OPC_SC, rt, rs, SIMM(ctx->opcode, 0, 12));
break;
#if defined(TARGET_MIPS64)
case SCD:
gen_st_cond(ctx, OPC_SCD, rt, rs, SIMM(ctx->opcode, 0, 12));
break;
#endif
case PREF:
/* Treat as no-op */
break;
default:
MIPS_INVAL("pool32c");
generate_exception(ctx, EXCP_RI);
break;
}
break;
case ADDI32:
mips32_op = OPC_ADDI;
goto do_addi;
case ADDIU32:
mips32_op = OPC_ADDIU;
do_addi:
gen_arith_imm(env, ctx, mips32_op, rt, rs, imm);
break;
/* Logical operations */
case ORI32:
mips32_op = OPC_ORI;
goto do_logici;
case XORI32:
mips32_op = OPC_XORI;
goto do_logici;
case ANDI32:
mips32_op = OPC_ANDI;
do_logici:
gen_logic_imm(env, mips32_op, rt, rs, imm);
break;
/* Set less than immediate */
case SLTI32:
mips32_op = OPC_SLTI;
goto do_slti;
case SLTIU32:
mips32_op = OPC_SLTIU;
do_slti:
gen_slt_imm(env, mips32_op, rt, rs, imm);
break;
case JALX32:
offset = (int32_t)(ctx->opcode & 0x3FFFFFF) << 2;
gen_compute_branch(ctx, OPC_JALX, 4, rt, rs, offset);
*is_branch = 1;
break;
case JALS32:
offset = (int32_t)(ctx->opcode & 0x3FFFFFF) << 1;
gen_compute_branch(ctx, OPC_JALS, 4, rt, rs, offset);
*is_branch = 1;
break;
case BEQ32:
gen_compute_branch(ctx, OPC_BEQ, 4, rt, rs, imm << 1);
*is_branch = 1;
break;
case BNE32:
gen_compute_branch(ctx, OPC_BNE, 4, rt, rs, imm << 1);
*is_branch = 1;
break;
case J32:
gen_compute_branch(ctx, OPC_J, 4, rt, rs,
(int32_t)(ctx->opcode & 0x3FFFFFF) << 1);
*is_branch = 1;
break;
case JAL32:
gen_compute_branch(ctx, OPC_JAL, 4, rt, rs,
(int32_t)(ctx->opcode & 0x3FFFFFF) << 1);
*is_branch = 1;
break;
/* Floating point (COP1) */
case LWC132:
mips32_op = OPC_LWC1;
goto do_cop1;
case LDC132:
mips32_op = OPC_LDC1;
goto do_cop1;
case SWC132:
mips32_op = OPC_SWC1;
goto do_cop1;
case SDC132:
mips32_op = OPC_SDC1;
do_cop1:
gen_cop1_ldst(env, ctx, mips32_op, rt, rs, imm);
break;
case ADDIUPC:
{
int reg = mmreg(ZIMM(ctx->opcode, 23, 3));
int offset = SIMM(ctx->opcode, 0, 23) << 2;
gen_addiupc(ctx, reg, offset, 0, 0);
}
break;
/* Loads and stores */
case LB32:
mips32_op = OPC_LB;
goto do_ldst;
case LBU32:
mips32_op = OPC_LBU;
goto do_ldst;
case LH32:
mips32_op = OPC_LH;
goto do_ldst;
case LHU32:
mips32_op = OPC_LHU;
goto do_ldst;
case LW32:
mips32_op = OPC_LW;
goto do_ldst;
#ifdef TARGET_MIPS64
case LD32:
mips32_op = OPC_LD;
goto do_ldst;
case SD32:
mips32_op = OPC_SD;
goto do_ldst;
#endif
case SB32:
mips32_op = OPC_SB;
goto do_ldst;
case SH32:
mips32_op = OPC_SH;
goto do_ldst;
case SW32:
mips32_op = OPC_SW;
do_ldst:
gen_ldst(ctx, mips32_op, rt, rs, imm);
break;
default:
generate_exception(ctx, EXCP_RI);
break;
}
}
static int decode_micromips_opc (CPUState *env, DisasContext *ctx, int *is_branch)
{
uint32_t op;
/* make sure instructions are on a halfword boundary */
if (ctx->pc & 0x1) {
env->CP0_BadVAddr = ctx->pc;
generate_exception(ctx, EXCP_AdEL);
ctx->bstate = BS_STOP;
return 2;
}
op = (ctx->opcode >> 10) & 0x3f;
/* Enforce properly-sized instructions in a delay slot */
if (ctx->hflags & MIPS_HFLAG_BMASK) {
int bits = ctx->hflags & MIPS_HFLAG_BMASK_EXT;
switch (op) {
case POOL32A:
case POOL32B:
case POOL32I:
case POOL32C:
case ADDI32:
case ADDIU32:
case ORI32:
case XORI32:
case SLTI32:
case SLTIU32:
case ANDI32:
case JALX32:
case LBU32:
case LHU32:
case POOL32F:
case JALS32:
case BEQ32:
case BNE32:
case J32:
case JAL32:
case SB32:
case SH32:
case POOL32S:
case ADDIUPC:
case SWC132:
case SDC132:
case SD32:
case SW32:
case LB32:
case LH32:
case DADDIU32:
case POOL48A: /* ??? */
case LWC132:
case LDC132:
case LD32:
case LW32:
if (bits & MIPS_HFLAG_BDS16) {
generate_exception(ctx, EXCP_RI);
/* Just stop translation; the user is confused. */
ctx->bstate = BS_STOP;
return 2;
}
break;
case POOL16A:
case POOL16B:
case POOL16C:
case LWGP16:
case POOL16F:
case LBU16:
case LHU16:
case LWSP16:
case LW16:
case SB16:
case SH16:
case SWSP16:
case SW16:
case MOVE16:
case ANDI16:
case POOL16D:
case POOL16E:
case BEQZ16:
case BNEZ16:
case B16:
case LI16:
if (bits & MIPS_HFLAG_BDS32) {
generate_exception(ctx, EXCP_RI);
/* Just stop translation; the user is confused. */
ctx->bstate = BS_STOP;
return 2;
}
break;
default:
break;
}
}
switch (op) {
case POOL16A:
{
int rd = mmreg(uMIPS_RD(ctx->opcode));
int rs1 = mmreg(uMIPS_RS1(ctx->opcode));
int rs2 = mmreg(uMIPS_RS2(ctx->opcode));
uint32_t opc = 0;
switch (ctx->opcode & 0x1) {
case ADDU16:
opc = OPC_ADDU;
break;
case SUBU16:
opc = OPC_SUBU;
break;
}
gen_arith(env, ctx, opc, rd, rs1, rs2);
}
break;
case POOL16B:
{
int rd = mmreg(uMIPS_RD(ctx->opcode));
int rs = mmreg(uMIPS_RS(ctx->opcode));
int amount = (ctx->opcode >> 1) & 0x7;
uint32_t opc = 0;
amount = amount == 0 ? 8 : amount;
switch (ctx->opcode & 0x1) {
case SLL16:
opc = OPC_SLL;
break;
case SRL16:
opc = OPC_SRL;
break;
}
gen_shift_imm(env, ctx, opc, rd, rs, amount);
}
break;
case POOL16C:
gen_pool16c_insn(env, ctx, is_branch);
break;
case LWGP16:
{
int rd = mmreg(uMIPS_RD(ctx->opcode));
int rb = 28; /* GP */
int16_t offset = SIMM(ctx->opcode, 0, 7) << 2;
gen_ldst(ctx, OPC_LW, rd, rb, offset);
}
break;
case POOL16F:
if (ctx->opcode & 1) {
generate_exception(ctx, EXCP_RI);
} else {
/* MOVEP */
int enc_dest = uMIPS_RD(ctx->opcode);
int enc_rt = uMIPS_RS2(ctx->opcode);
int enc_rs = uMIPS_RS1(ctx->opcode);
int rd, rs, re, rt;
static const int rd_enc[] = { 5, 5, 6, 4, 4, 4, 4, 4 };
static const int re_enc[] = { 6, 7, 7, 21, 22, 5, 6, 7 };
static const int rs_rt_enc[] = { 0, 17, 2, 3, 16, 18, 19, 20 };
rd = rd_enc[enc_dest];
re = re_enc[enc_dest];
rs = rs_rt_enc[enc_rs];
rt = rs_rt_enc[enc_rt];
gen_arith_imm(env, ctx, OPC_ADDIU, rd, rs, 0);
gen_arith_imm(env, ctx, OPC_ADDIU, re, rt, 0);
}
break;
case LBU16:
{
int rd = mmreg(uMIPS_RD(ctx->opcode));
int rb = mmreg(uMIPS_RS(ctx->opcode));
int16_t offset = ZIMM(ctx->opcode, 0, 4);
offset = (offset == 0xf ? -1 : offset);
gen_ldst(ctx, OPC_LBU, rd, rb, offset);
}
break;
case LHU16:
{
int rd = mmreg(uMIPS_RD(ctx->opcode));
int rb = mmreg(uMIPS_RS(ctx->opcode));
int16_t offset = ZIMM(ctx->opcode, 0, 4) << 1;
gen_ldst(ctx, OPC_LHU, rd, rb, offset);
}
break;
case LWSP16:
{
int rd = (ctx->opcode >> 5) & 0x1f;
int rb = 29; /* SP */
int16_t offset = ZIMM(ctx->opcode, 0, 5) << 2;
gen_ldst(ctx, OPC_LW, rd, rb, offset);
}
break;
case LW16:
{
int rd = mmreg(uMIPS_RD(ctx->opcode));
int rb = mmreg(uMIPS_RS(ctx->opcode));
int16_t offset = ZIMM(ctx->opcode, 0, 4) << 2;
gen_ldst(ctx, OPC_LW, rd, rb, offset);
}
break;
case SB16:
{
int rd = mmreg2(uMIPS_RD(ctx->opcode));
int rb = mmreg(uMIPS_RS(ctx->opcode));
int16_t offset = ZIMM(ctx->opcode, 0, 4);
gen_ldst(ctx, OPC_SB, rd, rb, offset);
}
break;
case SH16:
{
int rd = mmreg2(uMIPS_RD(ctx->opcode));
int rb = mmreg(uMIPS_RS(ctx->opcode));
int16_t offset = ZIMM(ctx->opcode, 0, 4) << 1;
gen_ldst(ctx, OPC_SH, rd, rb, offset);
}
break;
case SWSP16:
{
int rd = (ctx->opcode >> 5) & 0x1f;
int rb = 29; /* SP */
int16_t offset = ZIMM(ctx->opcode, 0, 5) << 2;
gen_ldst(ctx, OPC_SW, rd, rb, offset);
}
break;
case SW16:
{
int rd = mmreg2(uMIPS_RD(ctx->opcode));
int rb = mmreg(uMIPS_RS(ctx->opcode));
int16_t offset = ZIMM(ctx->opcode, 0, 4) << 2;
gen_ldst(ctx, OPC_SW, rd, rb, offset);
}
break;
case MOVE16:
{
int rd = uMIPS_RD5(ctx->opcode);
int rs = uMIPS_RS5(ctx->opcode);
gen_arith_imm(env, ctx, OPC_ADDIU, rd, rs, 0);
}
break;
case ANDI16:
gen_andi16(env, ctx);
break;
case POOL16D:
switch (ctx->opcode & 0x1) {
case ADDIUS5:
gen_addius5(env, ctx);
break;
case ADDIUSP:
gen_addiusp(env, ctx);
break;
}
break;
case POOL16E:
switch (ctx->opcode & 0x1) {
case ADDIUR2:
gen_addiur2(env, ctx);
break;
case ADDIUR1SP:
gen_addiur1sp(env, ctx);
break;
}
break;
case B16:
gen_compute_branch(ctx, OPC_BEQ, 2, 0, 0,
SIMM(ctx->opcode, 0, 10) << 1);
*is_branch = 1;
break;
case BNEZ16:
case BEQZ16:
gen_compute_branch(ctx, op == BNEZ16 ? OPC_BNE : OPC_BEQ, 2,
mmreg(uMIPS_RD(ctx->opcode)),
0, SIMM(ctx->opcode, 0, 7) << 1);
*is_branch = 1;
break;
case LI16:
{
int reg = mmreg(uMIPS_RD(ctx->opcode));
int imm = ZIMM(ctx->opcode, 0, 7);
imm = (imm == 0x7f ? -1 : imm);
tcg_gen_movi_tl(cpu_gpr[reg], imm);
}
break;
case RES_20:
case RES_28:
case RES_29:
case RES_30:
case RES_31:
case RES_38:
case RES_39:
generate_exception(ctx, EXCP_RI);
break;
default:
decode_micromips32_opc (env, ctx, op, is_branch);
return 4;
}
return 2;
}
/* SmartMIPS extension to MIPS32 */
#if defined(TARGET_MIPS64)
/* MDMX extension to MIPS64 */
#endif
static void decode_opc (CPUState *env, DisasContext *ctx, int *is_branch)
{
int32_t offset;
int rs, rt, rd, sa;
uint32_t op, op1, op2;
int16_t imm;
/* make sure instructions are on a word boundary */
if (ctx->pc & 0x3) {
env->CP0_BadVAddr = ctx->pc;
generate_exception(ctx, EXCP_AdEL);
return;
}
/* Handle blikely not taken case */
if ((ctx->hflags & MIPS_HFLAG_BMASK_BASE) == MIPS_HFLAG_BL) {
int l1 = gen_new_label();
MIPS_DEBUG("blikely condition (" TARGET_FMT_lx ")", ctx->pc + 4);
tcg_gen_brcondi_tl(TCG_COND_NE, bcond, 0, l1);
tcg_gen_movi_i32(hflags, ctx->hflags & ~MIPS_HFLAG_BMASK);
gen_goto_tb(ctx, 1, ctx->pc + 4);
gen_set_label(l1);
}
if (unlikely(qemu_loglevel_mask(CPU_LOG_TB_OP)))
tcg_gen_debug_insn_start(ctx->pc);
op = MASK_OP_MAJOR(ctx->opcode);
rs = (ctx->opcode >> 21) & 0x1f;
rt = (ctx->opcode >> 16) & 0x1f;
rd = (ctx->opcode >> 11) & 0x1f;
sa = (ctx->opcode >> 6) & 0x1f;
imm = (int16_t)ctx->opcode;
switch (op) {
case OPC_SPECIAL:
op1 = MASK_SPECIAL(ctx->opcode);
switch (op1) {
case OPC_SLL: /* Shift with immediate */
case OPC_SRA:
gen_shift_imm(env, ctx, op1, rd, rt, sa);
break;
case OPC_SRL:
switch ((ctx->opcode >> 21) & 0x1f) {
case 1:
/* rotr is decoded as srl on non-R2 CPUs */
if (env->insn_flags & ISA_MIPS32R2) {
op1 = OPC_ROTR;
}
/* Fallthrough */
case 0:
gen_shift_imm(env, ctx, op1, rd, rt, sa);
break;
default:
generate_exception(ctx, EXCP_RI);
break;
}
break;
case OPC_MOVN: /* Conditional move */
case OPC_MOVZ:
check_insn(env, ctx, ISA_MIPS4 | ISA_MIPS32 |
INSN_LOONGSON2E | INSN_LOONGSON2F);
gen_cond_move(env, op1, rd, rs, rt);
break;
case OPC_ADD ... OPC_SUBU:
gen_arith(env, ctx, op1, rd, rs, rt);
break;
case OPC_SLLV: /* Shifts */
case OPC_SRAV:
gen_shift(env, ctx, op1, rd, rs, rt);
break;
case OPC_SRLV:
switch ((ctx->opcode >> 6) & 0x1f) {
case 1:
/* rotrv is decoded as srlv on non-R2 CPUs */
if (env->insn_flags & ISA_MIPS32R2) {
op1 = OPC_ROTRV;
}
/* Fallthrough */
case 0:
gen_shift(env, ctx, op1, rd, rs, rt);
break;
default:
generate_exception(ctx, EXCP_RI);
break;
}
break;
case OPC_SLT: /* Set on less than */
case OPC_SLTU:
gen_slt(env, op1, rd, rs, rt);
break;
case OPC_AND: /* Logic*/
case OPC_OR:
case OPC_NOR:
case OPC_XOR:
gen_logic(env, op1, rd, rs, rt);
break;
case OPC_MULT ... OPC_DIVU:
if (sa) {
check_insn(env, ctx, INSN_VR54XX);
op1 = MASK_MUL_VR54XX(ctx->opcode);
gen_mul_vr54xx(ctx, op1, rd, rs, rt);
} else
gen_muldiv(ctx, op1, rs, rt);
break;
case OPC_JR ... OPC_JALR:
gen_compute_branch(ctx, op1, 4, rs, rd, sa);
*is_branch = 1;
break;
case OPC_TGE ... OPC_TEQ: /* Traps */
case OPC_TNE:
gen_trap(ctx, op1, rs, rt, -1);
break;
case OPC_MFHI: /* Move from HI/LO */
case OPC_MFLO:
gen_HILO(ctx, op1, rd);
break;
case OPC_MTHI:
case OPC_MTLO: /* Move to HI/LO */
gen_HILO(ctx, op1, rs);
break;
case OPC_PMON: /* Pmon entry point, also R4010 selsl */
#ifdef MIPS_STRICT_STANDARD
MIPS_INVAL("PMON / selsl");
generate_exception(ctx, EXCP_RI);
#else
gen_helper_0i(pmon, sa);
#endif
break;
case OPC_SYSCALL:
generate_exception(ctx, EXCP_SYSCALL);
ctx->bstate = BS_STOP;
break;
case OPC_BREAK:
generate_exception(ctx, EXCP_BREAK);
break;
case OPC_SPIM:
#ifdef MIPS_STRICT_STANDARD
MIPS_INVAL("SPIM");
generate_exception(ctx, EXCP_RI);
#else
/* Implemented as RI exception for now. */
MIPS_INVAL("spim (unofficial)");
generate_exception(ctx, EXCP_RI);
#endif
break;
case OPC_SYNC:
/* Treat as NOP. */
break;
case OPC_MOVCI:
check_insn(env, ctx, ISA_MIPS4 | ISA_MIPS32);
if (env->CP0_Config1 & (1 << CP0C1_FP)) {
check_cp1_enabled(ctx);
gen_movci(ctx, rd, rs, (ctx->opcode >> 18) & 0x7,
(ctx->opcode >> 16) & 1);
} else {
generate_exception_err(ctx, EXCP_CpU, 1);
}
break;
#if defined(TARGET_MIPS64)
/* MIPS64 specific opcodes */
case OPC_DSLL:
case OPC_DSRA:
case OPC_DSLL32:
case OPC_DSRA32:
check_insn(env, ctx, ISA_MIPS3);
check_mips_64(ctx);
gen_shift_imm(env, ctx, op1, rd, rt, sa);
break;
case OPC_DSRL:
switch ((ctx->opcode >> 21) & 0x1f) {
case 1:
/* drotr is decoded as dsrl on non-R2 CPUs */
if (env->insn_flags & ISA_MIPS32R2) {
op1 = OPC_DROTR;
}
/* Fallthrough */
case 0:
check_insn(env, ctx, ISA_MIPS3);
check_mips_64(ctx);
gen_shift_imm(env, ctx, op1, rd, rt, sa);
break;
default:
generate_exception(ctx, EXCP_RI);
break;
}
break;
case OPC_DSRL32:
switch ((ctx->opcode >> 21) & 0x1f) {
case 1:
/* drotr32 is decoded as dsrl32 on non-R2 CPUs */
if (env->insn_flags & ISA_MIPS32R2) {
op1 = OPC_DROTR32;
}
/* Fallthrough */
case 0:
check_insn(env, ctx, ISA_MIPS3);
check_mips_64(ctx);
gen_shift_imm(env, ctx, op1, rd, rt, sa);
break;
default:
generate_exception(ctx, EXCP_RI);
break;
}
break;
case OPC_DADD ... OPC_DSUBU:
check_insn(env, ctx, ISA_MIPS3);
check_mips_64(ctx);
gen_arith(env, ctx, op1, rd, rs, rt);
break;
case OPC_DSLLV:
case OPC_DSRAV:
check_insn(env, ctx, ISA_MIPS3);
check_mips_64(ctx);
gen_shift(env, ctx, op1, rd, rs, rt);
break;
case OPC_DSRLV:
switch ((ctx->opcode >> 6) & 0x1f) {
case 1:
/* drotrv is decoded as dsrlv on non-R2 CPUs */
if (env->insn_flags & ISA_MIPS32R2) {
op1 = OPC_DROTRV;
}
/* Fallthrough */
case 0:
check_insn(env, ctx, ISA_MIPS3);
check_mips_64(ctx);
gen_shift(env, ctx, op1, rd, rs, rt);
break;
default:
generate_exception(ctx, EXCP_RI);
break;
}
break;
case OPC_DMULT ... OPC_DDIVU:
check_insn(env, ctx, ISA_MIPS3);
check_mips_64(ctx);
gen_muldiv(ctx, op1, rs, rt);
break;
#endif
default: /* Invalid */
MIPS_INVAL("special");
generate_exception(ctx, EXCP_RI);
break;
}
break;
case OPC_SPECIAL2:
op1 = MASK_SPECIAL2(ctx->opcode);
switch (op1) {
case OPC_MADD ... OPC_MADDU: /* Multiply and add/sub */
case OPC_MSUB ... OPC_MSUBU:
check_insn(env, ctx, ISA_MIPS32);
gen_muldiv(ctx, op1, rs, rt);
break;
case OPC_MUL:
gen_arith(env, ctx, op1, rd, rs, rt);
break;
case OPC_CLO:
case OPC_CLZ:
check_insn(env, ctx, ISA_MIPS32);
gen_cl(ctx, op1, rd, rs);
break;
case OPC_SDBBP:
/* XXX: not clear which exception should be raised
* when in debug mode...
*/
check_insn(env, ctx, ISA_MIPS32);
if (!(ctx->hflags & MIPS_HFLAG_DM)) {
generate_exception(ctx, EXCP_DBp);
} else {
generate_exception(ctx, EXCP_DBp);
}
/* Treat as NOP. */
break;
#if defined(TARGET_MIPS64)
case OPC_DCLO:
case OPC_DCLZ:
check_insn(env, ctx, ISA_MIPS64);
check_mips_64(ctx);
gen_cl(ctx, op1, rd, rs);
break;
#endif
default: /* Invalid */
MIPS_INVAL("special2");
generate_exception(ctx, EXCP_RI);
break;
}
break;
case OPC_SPECIAL3:
op1 = MASK_SPECIAL3(ctx->opcode);
switch (op1) {
case OPC_EXT:
case OPC_INS:
check_insn(env, ctx, ISA_MIPS32R2);
gen_bitops(ctx, op1, rt, rs, sa, rd);
break;
case OPC_BSHFL:
check_insn(env, ctx, ISA_MIPS32R2);
op2 = MASK_BSHFL(ctx->opcode);
gen_bshfl(ctx, op2, rt, rd);
break;
case OPC_RDHWR:
gen_rdhwr(env, ctx, rt, rd);
break;
case OPC_FORK:
check_insn(env, ctx, ASE_MT);
{
TCGv t0 = tcg_temp_new();
TCGv t1 = tcg_temp_new();
gen_load_gpr(t0, rt);
gen_load_gpr(t1, rs);
gen_helper_fork(t0, t1);
tcg_temp_free(t0);
tcg_temp_free(t1);
}
break;
case OPC_YIELD:
check_insn(env, ctx, ASE_MT);
{
TCGv t0 = tcg_temp_new();
save_cpu_state(ctx, 1);
gen_load_gpr(t0, rs);
gen_helper_yield(t0, t0);
gen_store_gpr(t0, rd);
tcg_temp_free(t0);
}
break;
#if defined(TARGET_MIPS64)
case OPC_DEXTM ... OPC_DEXT:
case OPC_DINSM ... OPC_DINS:
check_insn(env, ctx, ISA_MIPS64R2);
check_mips_64(ctx);
gen_bitops(ctx, op1, rt, rs, sa, rd);
break;
case OPC_DBSHFL:
check_insn(env, ctx, ISA_MIPS64R2);
check_mips_64(ctx);
op2 = MASK_DBSHFL(ctx->opcode);
gen_bshfl(ctx, op2, rt, rd);
break;
#endif
default: /* Invalid */
MIPS_INVAL("special3");
generate_exception(ctx, EXCP_RI);
break;
}
break;
case OPC_REGIMM:
op1 = MASK_REGIMM(ctx->opcode);
switch (op1) {
case OPC_BLTZ ... OPC_BGEZL: /* REGIMM branches */
case OPC_BLTZAL ... OPC_BGEZALL:
gen_compute_branch(ctx, op1, 4, rs, -1, imm << 2);
*is_branch = 1;
break;
case OPC_TGEI ... OPC_TEQI: /* REGIMM traps */
case OPC_TNEI:
gen_trap(ctx, op1, rs, -1, imm);
break;
case OPC_SYNCI:
check_insn(env, ctx, ISA_MIPS32R2);
/* Treat as NOP. */
break;
default: /* Invalid */
MIPS_INVAL("regimm");
generate_exception(ctx, EXCP_RI);
break;
}
break;
case OPC_CP0:
check_cp0_enabled(ctx);
op1 = MASK_CP0(ctx->opcode);
switch (op1) {
case OPC_MFC0:
case OPC_MTC0:
case OPC_MFTR:
case OPC_MTTR:
#if defined(TARGET_MIPS64)
case OPC_DMFC0:
case OPC_DMTC0:
#endif
#ifndef CONFIG_USER_ONLY
gen_cp0(env, ctx, op1, rt, rd);
#endif /* !CONFIG_USER_ONLY */
break;
case OPC_C0_FIRST ... OPC_C0_LAST:
#ifndef CONFIG_USER_ONLY
gen_cp0(env, ctx, MASK_C0(ctx->opcode), rt, rd);
#endif /* !CONFIG_USER_ONLY */
break;
case OPC_MFMC0:
#ifndef CONFIG_USER_ONLY
{
TCGv t0 = tcg_temp_new();
op2 = MASK_MFMC0(ctx->opcode);
switch (op2) {
case OPC_DMT:
check_insn(env, ctx, ASE_MT);
gen_helper_dmt(t0, t0);
gen_store_gpr(t0, rt);
break;
case OPC_EMT:
check_insn(env, ctx, ASE_MT);
gen_helper_emt(t0, t0);
gen_store_gpr(t0, rt);
break;
case OPC_DVPE:
check_insn(env, ctx, ASE_MT);
gen_helper_dvpe(t0, t0);
gen_store_gpr(t0, rt);
break;
case OPC_EVPE:
check_insn(env, ctx, ASE_MT);
gen_helper_evpe(t0, t0);
gen_store_gpr(t0, rt);
break;
case OPC_DI:
check_insn(env, ctx, ISA_MIPS32R2);
save_cpu_state(ctx, 1);
gen_helper_di(t0);
gen_store_gpr(t0, rt);
/* Stop translation as we may have switched the execution mode */
ctx->bstate = BS_STOP;
break;
case OPC_EI:
check_insn(env, ctx, ISA_MIPS32R2);
save_cpu_state(ctx, 1);
gen_helper_ei(t0);
gen_store_gpr(t0, rt);
/* Stop translation as we may have switched the execution mode */
ctx->bstate = BS_STOP;
break;
default: /* Invalid */
MIPS_INVAL("mfmc0");
generate_exception(ctx, EXCP_RI);
break;
}
tcg_temp_free(t0);
}
#endif /* !CONFIG_USER_ONLY */
break;
case OPC_RDPGPR:
check_insn(env, ctx, ISA_MIPS32R2);
gen_load_srsgpr(rt, rd);
break;
case OPC_WRPGPR:
check_insn(env, ctx, ISA_MIPS32R2);
gen_store_srsgpr(rt, rd);
break;
default:
MIPS_INVAL("cp0");
generate_exception(ctx, EXCP_RI);
break;
}
break;
case OPC_ADDI: /* Arithmetic with immediate opcode */
case OPC_ADDIU:
gen_arith_imm(env, ctx, op, rt, rs, imm);
break;
case OPC_SLTI: /* Set on less than with immediate opcode */
case OPC_SLTIU:
gen_slt_imm(env, op, rt, rs, imm);
break;
case OPC_ANDI: /* Arithmetic with immediate opcode */
case OPC_LUI:
case OPC_ORI:
case OPC_XORI:
gen_logic_imm(env, op, rt, rs, imm);
break;
case OPC_J ... OPC_JAL: /* Jump */
offset = (int32_t)(ctx->opcode & 0x3FFFFFF) << 2;
gen_compute_branch(ctx, op, 4, rs, rt, offset);
*is_branch = 1;
break;
case OPC_BEQ ... OPC_BGTZ: /* Branch */
case OPC_BEQL ... OPC_BGTZL:
gen_compute_branch(ctx, op, 4, rs, rt, imm << 2);
*is_branch = 1;
break;
case OPC_LB ... OPC_LWR: /* Load and stores */
case OPC_SB ... OPC_SW:
case OPC_SWR:
case OPC_LL:
gen_ldst(ctx, op, rt, rs, imm);
break;
case OPC_SC:
gen_st_cond(ctx, op, rt, rs, imm);
break;
case OPC_CACHE:
check_insn(env, ctx, ISA_MIPS3 | ISA_MIPS32);
/* Treat as NOP. */
break;
case OPC_PREF:
check_insn(env, ctx, ISA_MIPS4 | ISA_MIPS32);
/* Treat as NOP. */
break;
/* Floating point (COP1). */
case OPC_LWC1:
case OPC_LDC1:
case OPC_SWC1:
case OPC_SDC1:
gen_cop1_ldst(env, ctx, op, rt, rs, imm);
break;
case OPC_CP1:
if (env->CP0_Config1 & (1 << CP0C1_FP)) {
check_cp1_enabled(ctx);
op1 = MASK_CP1(ctx->opcode);
switch (op1) {
case OPC_MFHC1:
case OPC_MTHC1:
check_insn(env, ctx, ISA_MIPS32R2);
case OPC_MFC1:
case OPC_CFC1:
case OPC_MTC1:
case OPC_CTC1:
gen_cp1(ctx, op1, rt, rd);
break;
#if defined(TARGET_MIPS64)
case OPC_DMFC1:
case OPC_DMTC1:
check_insn(env, ctx, ISA_MIPS3);
gen_cp1(ctx, op1, rt, rd);
break;
#endif
case OPC_BC1ANY2:
case OPC_BC1ANY4:
check_cop1x(ctx);
check_insn(env, ctx, ASE_MIPS3D);
/* fall through */
case OPC_BC1:
gen_compute_branch1(env, ctx, MASK_BC1(ctx->opcode),
(rt >> 2) & 0x7, imm << 2);
*is_branch = 1;
break;
case OPC_S_FMT:
case OPC_D_FMT:
case OPC_W_FMT:
case OPC_L_FMT:
case OPC_PS_FMT:
gen_farith(ctx, ctx->opcode & FOP(0x3f, 0x1f), rt, rd, sa,
(imm >> 8) & 0x7);
break;
default:
MIPS_INVAL("cp1");
generate_exception (ctx, EXCP_RI);
break;
}
} else {
generate_exception_err(ctx, EXCP_CpU, 1);
}
break;
/* COP2. */
case OPC_LWC2:
case OPC_LDC2:
case OPC_SWC2:
case OPC_SDC2:
case OPC_CP2:
/* COP2: Not implemented. */
generate_exception_err(ctx, EXCP_CpU, 2);
break;
case OPC_CP3:
if (env->CP0_Config1 & (1 << CP0C1_FP)) {
check_cp1_enabled(ctx);
op1 = MASK_CP3(ctx->opcode);
switch (op1) {
case OPC_LWXC1:
case OPC_LDXC1:
case OPC_LUXC1:
case OPC_SWXC1:
case OPC_SDXC1:
case OPC_SUXC1:
gen_flt3_ldst(ctx, op1, sa, rd, rs, rt);
break;
case OPC_PREFX:
/* Treat as NOP. */
break;
case OPC_ALNV_PS:
case OPC_MADD_S:
case OPC_MADD_D:
case OPC_MADD_PS:
case OPC_MSUB_S:
case OPC_MSUB_D:
case OPC_MSUB_PS:
case OPC_NMADD_S:
case OPC_NMADD_D:
case OPC_NMADD_PS:
case OPC_NMSUB_S:
case OPC_NMSUB_D:
case OPC_NMSUB_PS:
gen_flt3_arith(ctx, op1, sa, rs, rd, rt);
break;
default:
MIPS_INVAL("cp3");
generate_exception (ctx, EXCP_RI);
break;
}
} else {
generate_exception_err(ctx, EXCP_CpU, 1);
}
break;
#if defined(TARGET_MIPS64)
/* MIPS64 opcodes */
case OPC_LWU:
case OPC_LDL ... OPC_LDR:
case OPC_SDL ... OPC_SDR:
case OPC_LLD:
case OPC_LD:
case OPC_SD:
check_insn(env, ctx, ISA_MIPS3);
check_mips_64(ctx);
gen_ldst(ctx, op, rt, rs, imm);
break;
case OPC_SCD:
check_insn(env, ctx, ISA_MIPS3);
check_mips_64(ctx);
gen_st_cond(ctx, op, rt, rs, imm);
break;
case OPC_DADDI:
case OPC_DADDIU:
check_insn(env, ctx, ISA_MIPS3);
check_mips_64(ctx);
gen_arith_imm(env, ctx, op, rt, rs, imm);
break;
#endif
case OPC_JALX:
check_insn(env, ctx, ASE_MIPS16 | ASE_MICROMIPS);
offset = (int32_t)(ctx->opcode & 0x3FFFFFF) << 2;
gen_compute_branch(ctx, op, 4, rs, rt, offset);
*is_branch = 1;
break;
case OPC_MDMX:
check_insn(env, ctx, ASE_MDMX);
/* MDMX: Not implemented. */
default: /* Invalid */
MIPS_INVAL("major opcode");
generate_exception(ctx, EXCP_RI);
break;
}
}
static inline void
gen_intermediate_code_internal (CPUState *env, TranslationBlock *tb,
int search_pc)
{
DisasContext ctx;
target_ulong pc_start;
uint16_t *gen_opc_end;
CPUBreakpoint *bp;
int j, lj = -1;
int num_insns;
int max_insns;
int insn_bytes;
int is_branch;
if (search_pc)
qemu_log("search pc %d\n", search_pc);
pc_start = tb->pc;
gen_opc_end = gen_opc_buf + OPC_MAX_SIZE;
ctx.pc = pc_start;
ctx.saved_pc = -1;
ctx.singlestep_enabled = env->singlestep_enabled;
ctx.tb = tb;
ctx.bstate = BS_NONE;
/* Restore delay slot state from the tb context. */
ctx.hflags = (uint32_t)tb->flags; /* FIXME: maybe use 64 bits here? */
restore_cpu_state(env, &ctx);
#ifdef CONFIG_USER_ONLY
ctx.mem_idx = MIPS_HFLAG_UM;
#else
ctx.mem_idx = ctx.hflags & MIPS_HFLAG_KSU;
#endif
num_insns = 0;
max_insns = tb->cflags & CF_COUNT_MASK;
if (max_insns == 0)
max_insns = CF_COUNT_MASK;
LOG_DISAS("\ntb %p idx %d hflags %04x\n", tb, ctx.mem_idx, ctx.hflags);
gen_icount_start();
while (ctx.bstate == BS_NONE) {
if (unlikely(!QTAILQ_EMPTY(&env->breakpoints))) {
QTAILQ_FOREACH(bp, &env->breakpoints, entry) {
if (bp->pc == ctx.pc) {
save_cpu_state(&ctx, 1);
ctx.bstate = BS_BRANCH;
gen_helper_0i(raise_exception, EXCP_DEBUG);
/* Include the breakpoint location or the tb won't
* be flushed when it must be. */
ctx.pc += 4;
goto done_generating;
}
}
}
if (search_pc) {
j = gen_opc_ptr - gen_opc_buf;
if (lj < j) {
lj++;
while (lj < j)
gen_opc_instr_start[lj++] = 0;
}
gen_opc_pc[lj] = ctx.pc;
gen_opc_hflags[lj] = ctx.hflags & MIPS_HFLAG_BMASK;
gen_opc_instr_start[lj] = 1;
gen_opc_icount[lj] = num_insns;
}
if (num_insns + 1 == max_insns && (tb->cflags & CF_LAST_IO))
gen_io_start();
is_branch = 0;
if (!(ctx.hflags & MIPS_HFLAG_M16)) {
ctx.opcode = ldl_code(ctx.pc);
insn_bytes = 4;
decode_opc(env, &ctx, &is_branch);
} else if (env->insn_flags & ASE_MICROMIPS) {
ctx.opcode = lduw_code(ctx.pc);
insn_bytes = decode_micromips_opc(env, &ctx, &is_branch);
} else if (env->insn_flags & ASE_MIPS16) {
ctx.opcode = lduw_code(ctx.pc);
insn_bytes = decode_mips16_opc(env, &ctx, &is_branch);
} else {
generate_exception(&ctx, EXCP_RI);
ctx.bstate = BS_STOP;
break;
}
if (!is_branch) {
handle_delay_slot(env, &ctx, insn_bytes);
}
ctx.pc += insn_bytes;
num_insns++;
/* Execute a branch and its delay slot as a single instruction.
This is what GDB expects and is consistent with what the
hardware does (e.g. if a delay slot instruction faults, the
reported PC is the PC of the branch). */
if (env->singlestep_enabled && (ctx.hflags & MIPS_HFLAG_BMASK) == 0)
break;
if ((ctx.pc & (TARGET_PAGE_SIZE - 1)) == 0)
break;
if (gen_opc_ptr >= gen_opc_end)
break;
if (num_insns >= max_insns)
break;
if (singlestep)
break;
}
if (tb->cflags & CF_LAST_IO)
gen_io_end();
if (env->singlestep_enabled && ctx.bstate != BS_BRANCH) {
save_cpu_state(&ctx, ctx.bstate == BS_NONE);
gen_helper_0i(raise_exception, EXCP_DEBUG);
} else {
switch (ctx.bstate) {
case BS_STOP:
gen_helper_interrupt_restart();
gen_goto_tb(&ctx, 0, ctx.pc);
break;
case BS_NONE:
save_cpu_state(&ctx, 0);
gen_goto_tb(&ctx, 0, ctx.pc);
break;
case BS_EXCP:
gen_helper_interrupt_restart();
tcg_gen_exit_tb(0);
break;
case BS_BRANCH:
default:
break;
}
}
done_generating:
gen_icount_end(tb, num_insns);
*gen_opc_ptr = INDEX_op_end;
if (search_pc) {
j = gen_opc_ptr - gen_opc_buf;
lj++;
while (lj <= j)
gen_opc_instr_start[lj++] = 0;
} else {
tb->size = ctx.pc - pc_start;
tb->icount = num_insns;
}
#ifdef DEBUG_DISAS
LOG_DISAS("\n");
if (qemu_loglevel_mask(CPU_LOG_TB_IN_ASM)) {
qemu_log("IN: %s\n", lookup_symbol(pc_start));
log_target_disas(pc_start, ctx.pc - pc_start, 0);
qemu_log("\n");
}
#endif
}
void gen_intermediate_code (CPUState *env, struct TranslationBlock *tb)
{
gen_intermediate_code_internal(env, tb, 0);
}
void gen_intermediate_code_pc (CPUState *env, struct TranslationBlock *tb)
{
gen_intermediate_code_internal(env, tb, 1);
}
static void fpu_dump_state(CPUState *env, FILE *f,
int (*fpu_fprintf)(FILE *f, const char *fmt, ...),
int flags)
{
int i;
int is_fpu64 = !!(env->hflags & MIPS_HFLAG_F64);
#define printfpr(fp) \
do { \
if (is_fpu64) \
fpu_fprintf(f, "w:%08x d:%016" PRIx64 \
" fd:%13g fs:%13g psu: %13g\n", \
(fp)->w[FP_ENDIAN_IDX], (fp)->d, \
(double)(fp)->fd, \
(double)(fp)->fs[FP_ENDIAN_IDX], \
(double)(fp)->fs[!FP_ENDIAN_IDX]); \
else { \
fpr_t tmp; \
tmp.w[FP_ENDIAN_IDX] = (fp)->w[FP_ENDIAN_IDX]; \
tmp.w[!FP_ENDIAN_IDX] = ((fp) + 1)->w[FP_ENDIAN_IDX]; \
fpu_fprintf(f, "w:%08x d:%016" PRIx64 \
" fd:%13g fs:%13g psu:%13g\n", \
tmp.w[FP_ENDIAN_IDX], tmp.d, \
(double)tmp.fd, \
(double)tmp.fs[FP_ENDIAN_IDX], \
(double)tmp.fs[!FP_ENDIAN_IDX]); \
} \
} while(0)
fpu_fprintf(f, "CP1 FCR0 0x%08x FCR31 0x%08x SR.FR %d fp_status 0x%08x(0x%02x)\n",
env->active_fpu.fcr0, env->active_fpu.fcr31, is_fpu64, env->active_fpu.fp_status,
get_float_exception_flags(&env->active_fpu.fp_status));
for (i = 0; i < 32; (is_fpu64) ? i++ : (i += 2)) {
fpu_fprintf(f, "%3s: ", fregnames[i]);
printfpr(&env->active_fpu.fpr[i]);
}
#undef printfpr
}
#if defined(TARGET_MIPS64) && defined(MIPS_DEBUG_SIGN_EXTENSIONS)
/* Debug help: The architecture requires 32bit code to maintain proper
sign-extended values on 64bit machines. */
#define SIGN_EXT_P(val) ((((val) & ~0x7fffffff) == 0) || (((val) & ~0x7fffffff) == ~0x7fffffff))
static void
cpu_mips_check_sign_extensions (CPUState *env, FILE *f,
int (*cpu_fprintf)(FILE *f, const char *fmt, ...),
int flags)
{
int i;
if (!SIGN_EXT_P(env->active_tc.PC))
cpu_fprintf(f, "BROKEN: pc=0x" TARGET_FMT_lx "\n", env->active_tc.PC);
if (!SIGN_EXT_P(env->active_tc.HI[0]))
cpu_fprintf(f, "BROKEN: HI=0x" TARGET_FMT_lx "\n", env->active_tc.HI[0]);
if (!SIGN_EXT_P(env->active_tc.LO[0]))
cpu_fprintf(f, "BROKEN: LO=0x" TARGET_FMT_lx "\n", env->active_tc.LO[0]);
if (!SIGN_EXT_P(env->btarget))
cpu_fprintf(f, "BROKEN: btarget=0x" TARGET_FMT_lx "\n", env->btarget);
for (i = 0; i < 32; i++) {
if (!SIGN_EXT_P(env->active_tc.gpr[i]))
cpu_fprintf(f, "BROKEN: %s=0x" TARGET_FMT_lx "\n", regnames[i], env->active_tc.gpr[i]);
}
if (!SIGN_EXT_P(env->CP0_EPC))
cpu_fprintf(f, "BROKEN: EPC=0x" TARGET_FMT_lx "\n", env->CP0_EPC);
if (!SIGN_EXT_P(env->lladdr))
cpu_fprintf(f, "BROKEN: LLAddr=0x" TARGET_FMT_lx "\n", env->lladdr);
}
#endif
void cpu_dump_state (CPUState *env, FILE *f,
int (*cpu_fprintf)(FILE *f, const char *fmt, ...),
int flags)
{
int i;
cpu_fprintf(f, "pc=0x" TARGET_FMT_lx " HI=0x" TARGET_FMT_lx
" LO=0x" TARGET_FMT_lx " ds %04x "
TARGET_FMT_lx " " TARGET_FMT_ld "\n",
env->active_tc.PC, env->active_tc.HI[0], env->active_tc.LO[0],
env->hflags, env->btarget, env->bcond);
for (i = 0; i < 32; i++) {
if ((i & 3) == 0)
cpu_fprintf(f, "GPR%02d:", i);
cpu_fprintf(f, " %s " TARGET_FMT_lx, regnames[i], env->active_tc.gpr[i]);
if ((i & 3) == 3)
cpu_fprintf(f, "\n");
}
cpu_fprintf(f, "CP0 Status 0x%08x Cause 0x%08x EPC 0x" TARGET_FMT_lx "\n",
env->CP0_Status, env->CP0_Cause, env->CP0_EPC);
cpu_fprintf(f, " Config0 0x%08x Config1 0x%08x LLAddr 0x" TARGET_FMT_lx "\n",
env->CP0_Config0, env->CP0_Config1, env->lladdr);
if (env->hflags & MIPS_HFLAG_FPU)
fpu_dump_state(env, f, cpu_fprintf, flags);
#if defined(TARGET_MIPS64) && defined(MIPS_DEBUG_SIGN_EXTENSIONS)
cpu_mips_check_sign_extensions(env, f, cpu_fprintf, flags);
#endif
}
static void mips_tcg_init(void)
{
int i;
static int inited;
/* Initialize various static tables. */
if (inited)
return;
cpu_env = tcg_global_reg_new_ptr(TCG_AREG0, "env");
TCGV_UNUSED(cpu_gpr[0]);
for (i = 1; i < 32; i++)
cpu_gpr[i] = tcg_global_mem_new(TCG_AREG0,
offsetof(CPUState, active_tc.gpr[i]),
regnames[i]);
cpu_PC = tcg_global_mem_new(TCG_AREG0,
offsetof(CPUState, active_tc.PC), "PC");
for (i = 0; i < MIPS_DSP_ACC; i++) {
cpu_HI[i] = tcg_global_mem_new(TCG_AREG0,
offsetof(CPUState, active_tc.HI[i]),
regnames_HI[i]);
cpu_LO[i] = tcg_global_mem_new(TCG_AREG0,
offsetof(CPUState, active_tc.LO[i]),
regnames_LO[i]);
cpu_ACX[i] = tcg_global_mem_new(TCG_AREG0,
offsetof(CPUState, active_tc.ACX[i]),
regnames_ACX[i]);
}
cpu_dspctrl = tcg_global_mem_new(TCG_AREG0,
offsetof(CPUState, active_tc.DSPControl),
"DSPControl");
bcond = tcg_global_mem_new(TCG_AREG0,
offsetof(CPUState, bcond), "bcond");
btarget = tcg_global_mem_new(TCG_AREG0,
offsetof(CPUState, btarget), "btarget");
hflags = tcg_global_mem_new_i32(TCG_AREG0,
offsetof(CPUState, hflags), "hflags");
fpu_fcr0 = tcg_global_mem_new_i32(TCG_AREG0,
offsetof(CPUState, active_fpu.fcr0),
"fcr0");
fpu_fcr31 = tcg_global_mem_new_i32(TCG_AREG0,
offsetof(CPUState, active_fpu.fcr31),
"fcr31");
/* register helpers */
#define GEN_HELPER 2
#include "helper.h"
inited = 1;
}
#include "translate_init.c"
CPUMIPSState *cpu_mips_init (const char *cpu_model)
{
CPUMIPSState *env;
const mips_def_t *def;
def = cpu_mips_find_by_name(cpu_model);
if (!def)
return NULL;
env = qemu_mallocz(sizeof(CPUMIPSState));
env->cpu_model = def;
env->cpu_model_str = cpu_model;
cpu_exec_init(env);
#ifndef CONFIG_USER_ONLY
mmu_init(env, def);
#endif
fpu_init(env, def);
mvp_init(env, def);
mips_tcg_init();
cpu_reset(env);
qemu_init_vcpu(env);
return env;
}
void cpu_reset (CPUMIPSState *env)
{
if (qemu_loglevel_mask(CPU_LOG_RESET)) {
qemu_log("CPU Reset (CPU %d)\n", env->cpu_index);
log_cpu_state(env, 0);
}
memset(env, 0, offsetof(CPUMIPSState, breakpoints));
tlb_flush(env, 1);
/* Reset registers to their default values */
env->CP0_PRid = env->cpu_model->CP0_PRid;
env->CP0_Config0 = env->cpu_model->CP0_Config0;
#ifdef TARGET_WORDS_BIGENDIAN
env->CP0_Config0 |= (1 << CP0C0_BE);
#endif
env->CP0_Config1 = env->cpu_model->CP0_Config1;
env->CP0_Config2 = env->cpu_model->CP0_Config2;
env->CP0_Config3 = env->cpu_model->CP0_Config3;
env->CP0_Config6 = env->cpu_model->CP0_Config6;
env->CP0_Config7 = env->cpu_model->CP0_Config7;
env->CP0_LLAddr_rw_bitmask = env->cpu_model->CP0_LLAddr_rw_bitmask
<< env->cpu_model->CP0_LLAddr_shift;
env->CP0_LLAddr_shift = env->cpu_model->CP0_LLAddr_shift;
env->SYNCI_Step = env->cpu_model->SYNCI_Step;
env->CCRes = env->cpu_model->CCRes;
env->CP0_Status_rw_bitmask = env->cpu_model->CP0_Status_rw_bitmask;
env->CP0_TCStatus_rw_bitmask = env->cpu_model->CP0_TCStatus_rw_bitmask;
env->CP0_SRSCtl = env->cpu_model->CP0_SRSCtl;
env->current_tc = 0;
env->SEGBITS = env->cpu_model->SEGBITS;
env->SEGMask = (target_ulong)((1ULL << env->cpu_model->SEGBITS) - 1);
#if defined(TARGET_MIPS64)
if (env->cpu_model->insn_flags & ISA_MIPS3) {
env->SEGMask |= 3ULL << 62;
}
#endif
env->PABITS = env->cpu_model->PABITS;
env->PAMask = (target_ulong)((1ULL << env->cpu_model->PABITS) - 1);
env->CP0_SRSConf0_rw_bitmask = env->cpu_model->CP0_SRSConf0_rw_bitmask;
env->CP0_SRSConf0 = env->cpu_model->CP0_SRSConf0;
env->CP0_SRSConf1_rw_bitmask = env->cpu_model->CP0_SRSConf1_rw_bitmask;
env->CP0_SRSConf1 = env->cpu_model->CP0_SRSConf1;
env->CP0_SRSConf2_rw_bitmask = env->cpu_model->CP0_SRSConf2_rw_bitmask;
env->CP0_SRSConf2 = env->cpu_model->CP0_SRSConf2;
env->CP0_SRSConf3_rw_bitmask = env->cpu_model->CP0_SRSConf3_rw_bitmask;
env->CP0_SRSConf3 = env->cpu_model->CP0_SRSConf3;
env->CP0_SRSConf4_rw_bitmask = env->cpu_model->CP0_SRSConf4_rw_bitmask;
env->CP0_SRSConf4 = env->cpu_model->CP0_SRSConf4;
env->insn_flags = env->cpu_model->insn_flags;
#if defined(CONFIG_USER_ONLY)
env->hflags = MIPS_HFLAG_UM;
/* Enable access to the SYNCI_Step register. */
env->CP0_HWREna |= (1 << 1);
if (env->CP0_Config1 & (1 << CP0C1_FP)) {
env->hflags |= MIPS_HFLAG_FPU;
}
#ifdef TARGET_MIPS64
if (env->active_fpu.fcr0 & (1 << FCR0_F64)) {
env->hflags |= MIPS_HFLAG_F64;
}
#endif
#else
if (env->hflags & MIPS_HFLAG_BMASK) {
/* If the exception was raised from a delay slot,
come back to the jump. */
env->CP0_ErrorEPC = env->active_tc.PC - 4;
} else {
env->CP0_ErrorEPC = env->active_tc.PC;
}
env->active_tc.PC = (int32_t)0xBFC00000;
env->CP0_Random = env->tlb->nb_tlb - 1;
env->tlb->tlb_in_use = env->tlb->nb_tlb;
env->CP0_Wired = 0;
/* SMP not implemented */
env->CP0_EBase = 0x80000000;
env->CP0_Status = (1 << CP0St_BEV) | (1 << CP0St_ERL);
/* vectored interrupts not implemented, timer on int 7,
no performance counters. */
env->CP0_IntCtl = 0xe0000000;
{
int i;
for (i = 0; i < 7; i++) {
env->CP0_WatchLo[i] = 0;
env->CP0_WatchHi[i] = 0x80000000;
}
env->CP0_WatchLo[7] = 0;
env->CP0_WatchHi[7] = 0;
}
/* Count register increments in debug mode, EJTAG version 1 */
env->CP0_Debug = (1 << CP0DB_CNT) | (0x1 << CP0DB_VER);
env->hflags = MIPS_HFLAG_CP0;
#endif
#if defined(TARGET_MIPS64)
if (env->cpu_model->insn_flags & ISA_MIPS3) {
env->hflags |= MIPS_HFLAG_64;
}
#endif
env->exception_index = EXCP_NONE;
}
void gen_pc_load(CPUState *env, TranslationBlock *tb,
unsigned long searched_pc, int pc_pos, void *puc)
{
env->active_tc.PC = gen_opc_pc[pc_pos];
env->hflags &= ~MIPS_HFLAG_BMASK;
env->hflags |= gen_opc_hflags[pc_pos];
}
Reference in New Issue View Git Blame Copy Permalink