/* * 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) * * 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, write to the Free Software * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA */ #include #include #include #include #include #include "cpu.h" #include "exec-all.h" #include "disas.h" //#define MIPS_DEBUG_DISAS //#define MIPS_DEBUG_SIGN_EXTENSIONS //#define MIPS_SINGLE_STEP #ifdef USE_DIRECT_JUMP #define TBPARAM(x) #else #define TBPARAM(x) (long)(x) #endif enum { #define DEF(s, n, copy_size) INDEX_op_ ## s, #include "opc.h" #undef DEF NB_OPS, }; static uint16_t *gen_opc_ptr; static uint32_t *gen_opparam_ptr; #include "gen-op.h" /* 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), OPC_ANDI = (0x0C << 26), OPC_ORI = (0x0D << 26), OPC_XORI = (0x0E << 26), OPC_LUI = (0x0F << 26), OPC_DADDI = (0x18 << 26), OPC_DADDIU = (0x19 << 26), /* Jump and branches */ OPC_J = (0x02 << 26), OPC_JAL = (0x03 << 26), 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 */ /* 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_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_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_SRA = 0x03 | OPC_SPECIAL, OPC_SLLV = 0x04 | OPC_SPECIAL, OPC_SRLV = 0x06 | OPC_SPECIAL, OPC_SRAV = 0x07 | OPC_SPECIAL, OPC_DSLLV = 0x14 | OPC_SPECIAL, OPC_DSRLV = 0x16 | OPC_SPECIAL, /* also DROTRV */ OPC_DSRAV = 0x17 | OPC_SPECIAL, OPC_DSLL = 0x38 | OPC_SPECIAL, OPC_DSRL = 0x3A | OPC_SPECIAL, /* also DROTR */ OPC_DSRA = 0x3B | OPC_SPECIAL, OPC_DSLL32 = 0x3C | OPC_SPECIAL, OPC_DSRL32 = 0x3E | OPC_SPECIAL, /* also DROTR32 */ 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 */ /* 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, /* inofficial */ OPC_SYSCALL = 0x0C | OPC_SPECIAL, OPC_BREAK = 0x0D | OPC_SPECIAL, OPC_SPIM = 0x0E | OPC_SPECIAL, /* inofficial */ 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, }; /* 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_BLTZALL = (0x12 << 16) | OPC_REGIMM, OPC_BGEZAL = (0x11 << 16) | OPC_REGIMM, 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_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_RDPGPR = (0x0A << 21) | OPC_CP0, OPC_MFMC0 = (0x0B << 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 & ((0x0C << 11) | (1 << 5))) enum { 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)) enum { OPC_MFC1 = (0x00 << 21) | OPC_CP1, OPC_DMFC1 = (0x01 << 21) | OPC_CP1, OPC_CFC1 = (0x02 << 21) | OPC_CP1, OPC_MFHCI = (0x03 << 21) | OPC_CP1, OPC_MTC1 = (0x04 << 21) | OPC_CP1, OPC_DMTC1 = (0x05 << 21) | OPC_CP1, OPC_CTC1 = (0x06 << 21) | OPC_CP1, OPC_MTHCI = (0x07 << 21) | OPC_CP1, OPC_BC1 = (0x08 << 21) | OPC_CP1, /* bc */ OPC_S_FMT = (0x10 << 21) | OPC_CP1, /* 16: fmt=single fp */ OPC_D_FMT = (0x11 << 21) | OPC_CP1, /* 17: fmt=double fp */ OPC_E_FMT = (0x12 << 21) | OPC_CP1, /* 18: fmt=extended fp */ OPC_Q_FMT = (0x13 << 21) | OPC_CP1, /* 19: fmt=quad fp */ OPC_W_FMT = (0x14 << 21) | OPC_CP1, /* 20: fmt=32bit fixed */ OPC_L_FMT = (0x15 << 21) | OPC_CP1, /* 21: fmt=64bit fixed */ }; 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, }; #define MASK_CP1_BCOND(op) MASK_CP1(op) | (op & (0x3 << 16)) #define MASK_CP1_FUNC(op) MASK_CP1(op) | (op & 0x3F) #define MASK_CP2(op) MASK_OP_MAJOR(op) | (op & (0x1F << 21)) #define MASK_CP3(op) MASK_OP_MAJOR(op) | (op & (0x1F << 21)) const unsigned 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", }; /* Warning: no function for r0 register (hard wired to zero) */ #define GEN32(func, NAME) \ static GenOpFunc *NAME ## _table [32] = { \ NULL, NAME ## 1, NAME ## 2, NAME ## 3, \ NAME ## 4, NAME ## 5, NAME ## 6, NAME ## 7, \ NAME ## 8, NAME ## 9, NAME ## 10, NAME ## 11, \ NAME ## 12, NAME ## 13, NAME ## 14, NAME ## 15, \ NAME ## 16, NAME ## 17, NAME ## 18, NAME ## 19, \ NAME ## 20, NAME ## 21, NAME ## 22, NAME ## 23, \ NAME ## 24, NAME ## 25, NAME ## 26, NAME ## 27, \ NAME ## 28, NAME ## 29, NAME ## 30, NAME ## 31, \ }; \ static inline void func(int n) \ { \ NAME ## _table[n](); \ } /* General purpose registers moves */ GEN32(gen_op_load_gpr_T0, gen_op_load_gpr_T0_gpr); GEN32(gen_op_load_gpr_T1, gen_op_load_gpr_T1_gpr); GEN32(gen_op_load_gpr_T2, gen_op_load_gpr_T2_gpr); GEN32(gen_op_store_T0_gpr, gen_op_store_T0_gpr_gpr); GEN32(gen_op_store_T1_gpr, gen_op_store_T1_gpr_gpr); #ifdef MIPS_USES_FPU 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", }; # define SFGEN32(func, NAME) \ static GenOpFunc *NAME ## _table [32] = { \ NAME ## 0, NAME ## 1, NAME ## 2, NAME ## 3, \ NAME ## 4, NAME ## 5, NAME ## 6, NAME ## 7, \ NAME ## 8, NAME ## 9, NAME ## 10, NAME ## 11, \ NAME ## 12, NAME ## 13, NAME ## 14, NAME ## 15, \ NAME ## 16, NAME ## 17, NAME ## 18, NAME ## 19, \ NAME ## 20, NAME ## 21, NAME ## 22, NAME ## 23, \ NAME ## 24, NAME ## 25, NAME ## 26, NAME ## 27, \ NAME ## 28, NAME ## 29, NAME ## 30, NAME ## 31, \ }; \ static inline void func(int n) \ { \ NAME ## _table[n](); \ } # define DFGEN32(func, NAME) \ static GenOpFunc *NAME ## _table [32] = { \ NAME ## 0, 0, NAME ## 2, 0, \ NAME ## 4, 0, NAME ## 6, 0, \ NAME ## 8, 0, NAME ## 10, 0, \ NAME ## 12, 0, NAME ## 14, 0, \ NAME ## 16, 0, NAME ## 18, 0, \ NAME ## 20, 0, NAME ## 22, 0, \ NAME ## 24, 0, NAME ## 26, 0, \ NAME ## 28, 0, NAME ## 30, 0, \ }; \ static inline void func(int n) \ { \ NAME ## _table[n](); \ } SFGEN32(gen_op_load_fpr_WT0, gen_op_load_fpr_WT0_fpr); SFGEN32(gen_op_store_fpr_WT0, gen_op_store_fpr_WT0_fpr); SFGEN32(gen_op_load_fpr_WT1, gen_op_load_fpr_WT1_fpr); SFGEN32(gen_op_store_fpr_WT1, gen_op_store_fpr_WT1_fpr); SFGEN32(gen_op_load_fpr_WT2, gen_op_load_fpr_WT2_fpr); SFGEN32(gen_op_store_fpr_WT2, gen_op_store_fpr_WT2_fpr); DFGEN32(gen_op_load_fpr_DT0, gen_op_load_fpr_DT0_fpr); DFGEN32(gen_op_store_fpr_DT0, gen_op_store_fpr_DT0_fpr); DFGEN32(gen_op_load_fpr_DT1, gen_op_load_fpr_DT1_fpr); DFGEN32(gen_op_store_fpr_DT1, gen_op_store_fpr_DT1_fpr); DFGEN32(gen_op_load_fpr_DT2, gen_op_load_fpr_DT2_fpr); DFGEN32(gen_op_store_fpr_DT2, gen_op_store_fpr_DT2_fpr); #define FOP_CONDS(fmt) \ static GenOpFunc * cond_ ## fmt ## _table[16] = { \ gen_op_cmp_ ## fmt ## _f, \ gen_op_cmp_ ## fmt ## _un, \ gen_op_cmp_ ## fmt ## _eq, \ gen_op_cmp_ ## fmt ## _ueq, \ gen_op_cmp_ ## fmt ## _olt, \ gen_op_cmp_ ## fmt ## _ult, \ gen_op_cmp_ ## fmt ## _ole, \ gen_op_cmp_ ## fmt ## _ule, \ gen_op_cmp_ ## fmt ## _sf, \ gen_op_cmp_ ## fmt ## _ngle, \ gen_op_cmp_ ## fmt ## _seq, \ gen_op_cmp_ ## fmt ## _ngl, \ gen_op_cmp_ ## fmt ## _lt, \ gen_op_cmp_ ## fmt ## _nge, \ gen_op_cmp_ ## fmt ## _le, \ gen_op_cmp_ ## fmt ## _ngt, \ }; \ static inline void gen_cmp_ ## fmt(int n) \ { \ cond_ ## fmt ## _table[n](); \ } FOP_CONDS(d) FOP_CONDS(s) #endif /* MIPS_USES_FPU */ typedef struct DisasContext { struct TranslationBlock *tb; target_ulong pc, saved_pc; uint32_t opcode; /* Routine used to access memory */ int mem_idx; uint32_t hflags, saved_hflags; uint32_t CP0_Status; 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 */ }; #if defined MIPS_DEBUG_DISAS #define MIPS_DEBUG(fmt, args...) \ do { \ if (loglevel & CPU_LOG_TB_IN_ASM) { \ fprintf(logfile, TLSZ ": %08x " fmt "\n", \ ctx->pc, ctx->opcode , ##args); \ } \ } while (0) #else #define MIPS_DEBUG(fmt, args...) 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) #define GEN_LOAD_REG_TN(Tn, Rn) \ do { \ if (Rn == 0) { \ glue(gen_op_reset_, Tn)(); \ } else { \ glue(gen_op_load_gpr_, Tn)(Rn); \ } \ } while (0) #define GEN_LOAD_IMM_TN(Tn, Imm) \ do { \ if (Imm == 0) { \ glue(gen_op_reset_, Tn)(); \ } else { \ glue(gen_op_set_, Tn)(Imm); \ } \ } while (0) #define GEN_STORE_TN_REG(Rn, Tn) \ do { \ if (Rn != 0) { \ glue(glue(gen_op_store_, Tn),_gpr)(Rn); \ } \ } while (0) #define GEN_LOAD_FREG_FTN(FTn, Fn) \ do { \ glue(gen_op_load_fpr_, FTn)(Fn); \ } while (0) #define GEN_STORE_FTN_FREG(Fn, FTn) \ do { \ glue(gen_op_store_fpr_, FTn)(Fn); \ } while (0) static inline void save_cpu_state (DisasContext *ctx, int do_save_pc) { #if defined MIPS_DEBUG_DISAS if (loglevel & CPU_LOG_TB_IN_ASM) { fprintf(logfile, "hflags %08x saved %08x\n", ctx->hflags, ctx->saved_hflags); } #endif if (do_save_pc && ctx->pc != ctx->saved_pc) { gen_op_save_pc(ctx->pc); ctx->saved_pc = ctx->pc; } if (ctx->hflags != ctx->saved_hflags) { gen_op_save_state(ctx->hflags); ctx->saved_hflags = ctx->hflags; if (ctx->hflags & MIPS_HFLAG_BR) { gen_op_save_breg_target(); } else if (ctx->hflags & MIPS_HFLAG_B) { gen_op_save_btarget(ctx->btarget); } else if (ctx->hflags & MIPS_HFLAG_BMASK) { gen_op_save_bcond(); gen_op_save_btarget(ctx->btarget); } } } static inline void generate_exception_err (DisasContext *ctx, int excp, int err) { #if defined MIPS_DEBUG_DISAS if (loglevel & CPU_LOG_TB_IN_ASM) fprintf(logfile, "%s: raise exception %d\n", __func__, excp); #endif save_cpu_state(ctx, 1); if (err == 0) gen_op_raise_exception(excp); else gen_op_raise_exception_err(excp, err); ctx->bstate = BS_EXCP; } static inline void generate_exception (DisasContext *ctx, int excp) { generate_exception_err (ctx, excp, 0); } #if defined(CONFIG_USER_ONLY) #define op_ldst(name) gen_op_##name##_raw() #define OP_LD_TABLE(width) #define OP_ST_TABLE(width) #else #define op_ldst(name) (*gen_op_##name[ctx->mem_idx])() #define OP_LD_TABLE(width) \ static GenOpFunc *gen_op_l##width[] = { \ &gen_op_l##width##_user, \ &gen_op_l##width##_kernel, \ } #define OP_ST_TABLE(width) \ static GenOpFunc *gen_op_s##width[] = { \ &gen_op_s##width##_user, \ &gen_op_s##width##_kernel, \ } #endif #ifdef MIPS_HAS_MIPS64 OP_LD_TABLE(d); OP_LD_TABLE(dl); OP_LD_TABLE(dr); OP_ST_TABLE(d); OP_ST_TABLE(dl); OP_ST_TABLE(dr); OP_LD_TABLE(ld); OP_ST_TABLE(cd); #endif OP_LD_TABLE(w); OP_LD_TABLE(wu); OP_LD_TABLE(wl); OP_LD_TABLE(wr); OP_ST_TABLE(w); OP_ST_TABLE(wl); OP_ST_TABLE(wr); OP_LD_TABLE(h); OP_LD_TABLE(hu); OP_ST_TABLE(h); OP_LD_TABLE(b); OP_LD_TABLE(bu); OP_ST_TABLE(b); OP_LD_TABLE(l); OP_ST_TABLE(c); #ifdef MIPS_USES_FPU OP_LD_TABLE(wc1); OP_ST_TABLE(wc1); OP_LD_TABLE(dc1); OP_ST_TABLE(dc1); #endif /* Load and store */ static void gen_ldst (DisasContext *ctx, uint32_t opc, int rt, int base, int16_t offset) { const char *opn = "unk"; if (base == 0) { GEN_LOAD_IMM_TN(T0, offset); } else if (offset == 0) { gen_op_load_gpr_T0(base); } else { gen_op_load_gpr_T0(base); gen_op_set_T1(offset); gen_op_add(); } /* Don't do NOP if destination is zero: we must perform the actual * memory access */ switch (opc) { #ifdef MIPS_HAS_MIPS64 case OPC_LD: op_ldst(ld); GEN_STORE_TN_REG(rt, T0); opn = "ld"; break; case OPC_LLD: op_ldst(lld); GEN_STORE_TN_REG(rt, T0); opn = "lld"; break; case OPC_SD: GEN_LOAD_REG_TN(T1, rt); op_ldst(sd); opn = "sd"; break; case OPC_SCD: GEN_LOAD_REG_TN(T1, rt); op_ldst(scd); opn = "scd"; break; case OPC_LDL: op_ldst(ldl); GEN_STORE_TN_REG(rt, T0); opn = "ldl"; break; case OPC_SDL: GEN_LOAD_REG_TN(T1, rt); op_ldst(sdl); opn = "sdl"; break; case OPC_LDR: op_ldst(ldr); GEN_STORE_TN_REG(rt, T0); opn = "ldr"; break; case OPC_SDR: GEN_LOAD_REG_TN(T1, rt); op_ldst(sdr); opn = "sdr"; break; #endif case OPC_LW: op_ldst(lw); GEN_STORE_TN_REG(rt, T0); opn = "lw"; break; case OPC_LWU: op_ldst(lwu); GEN_STORE_TN_REG(rt, T0); opn = "lwu"; break; case OPC_SW: GEN_LOAD_REG_TN(T1, rt); op_ldst(sw); opn = "sw"; break; case OPC_LH: op_ldst(lh); GEN_STORE_TN_REG(rt, T0); opn = "lh"; break; case OPC_SH: GEN_LOAD_REG_TN(T1, rt); op_ldst(sh); opn = "sh"; break; case OPC_LHU: op_ldst(lhu); GEN_STORE_TN_REG(rt, T0); opn = "lhu"; break; case OPC_LB: op_ldst(lb); GEN_STORE_TN_REG(rt, T0); opn = "lb"; break; case OPC_SB: GEN_LOAD_REG_TN(T1, rt); op_ldst(sb); opn = "sb"; break; case OPC_LBU: op_ldst(lbu); GEN_STORE_TN_REG(rt, T0); opn = "lbu"; break; case OPC_LWL: GEN_LOAD_REG_TN(T1, rt); op_ldst(lwl); GEN_STORE_TN_REG(rt, T0); opn = "lwl"; break; case OPC_SWL: GEN_LOAD_REG_TN(T1, rt); op_ldst(swl); opn = "swr"; break; case OPC_LWR: GEN_LOAD_REG_TN(T1, rt); op_ldst(lwr); GEN_STORE_TN_REG(rt, T0); opn = "lwr"; break; case OPC_SWR: GEN_LOAD_REG_TN(T1, rt); op_ldst(swr); opn = "swr"; break; case OPC_LL: op_ldst(ll); GEN_STORE_TN_REG(rt, T0); opn = "ll"; break; case OPC_SC: GEN_LOAD_REG_TN(T1, rt); op_ldst(sc); GEN_STORE_TN_REG(rt, T0); opn = "sc"; break; default: MIPS_INVAL("load/store"); generate_exception(ctx, EXCP_RI); return; } MIPS_DEBUG("%s %s, %d(%s)", opn, regnames[rt], offset, regnames[base]); } #ifdef MIPS_USES_FPU /* Load and store */ static void gen_flt_ldst (DisasContext *ctx, uint32_t opc, int ft, int base, int16_t offset) { const char *opn = "unk"; if (base == 0) { GEN_LOAD_IMM_TN(T0, offset); } else if (offset == 0) { gen_op_load_gpr_T0(base); } else { gen_op_load_gpr_T0(base); gen_op_set_T1(offset); gen_op_add(); } /* Don't do NOP if destination is zero: we must perform the actual * memory access */ switch (opc) { case OPC_LWC1: op_ldst(lwc1); GEN_STORE_FTN_FREG(ft, WT0); opn = "lwc1"; break; case OPC_SWC1: GEN_LOAD_FREG_FTN(WT0, ft); op_ldst(swc1); opn = "swc1"; break; case OPC_LDC1: op_ldst(ldc1); GEN_STORE_FTN_FREG(ft, DT0); opn = "ldc1"; break; case OPC_SDC1: GEN_LOAD_FREG_FTN(DT0, ft); op_ldst(sdc1); opn = "sdc1"; break; default: MIPS_INVAL("float load/store"); generate_exception_err(ctx, EXCP_CpU, 1); return; } MIPS_DEBUG("%s %s, %d(%s)", opn, fregnames[ft], offset, regnames[base]); } #endif /* MIPS_USES_FPU */ /* Arithmetic with immediate operand */ static void gen_arith_imm (DisasContext *ctx, uint32_t opc, int rt, int rs, int16_t imm) { uint32_t uimm; const char *opn = "unk"; 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; } if (opc == OPC_ADDI || opc == OPC_ADDIU || opc == OPC_DADDI || opc == OPC_DADDIU || opc == OPC_SLTI || opc == OPC_SLTIU) uimm = (int32_t)imm; /* Sign extend to 32 bits */ else uimm = (uint16_t)imm; if (opc != OPC_LUI) { GEN_LOAD_REG_TN(T0, rs); GEN_LOAD_IMM_TN(T1, uimm); } else { uimm = uimm << 16; GEN_LOAD_IMM_TN(T0, uimm); } switch (opc) { case OPC_ADDI: save_cpu_state(ctx, 1); gen_op_addo(); opn = "addi"; break; case OPC_ADDIU: gen_op_add(); opn = "addiu"; break; #ifdef MIPS_HAS_MIPS64 case OPC_DADDI: save_cpu_state(ctx, 1); gen_op_daddo(); opn = "daddi"; break; case OPC_DADDIU: gen_op_dadd(); opn = "daddiu"; break; #endif case OPC_SLTI: gen_op_lt(); opn = "slti"; break; case OPC_SLTIU: gen_op_ltu(); opn = "sltiu"; break; case OPC_ANDI: gen_op_and(); opn = "andi"; break; case OPC_ORI: gen_op_or(); opn = "ori"; break; case OPC_XORI: gen_op_xor(); opn = "xori"; break; case OPC_LUI: opn = "lui"; break; case OPC_SLL: gen_op_sll(); opn = "sll"; break; case OPC_SRA: gen_op_sra(); opn = "sra"; break; case OPC_SRL: if ((ctx->opcode >> 21) & 1) { gen_op_rotr(); opn = "rotr"; } else { gen_op_srl(); opn = "srl"; } break; #ifdef MIPS_HAS_MIPS64 case OPC_DSLL: gen_op_dsll(); opn = "dsll"; break; case OPC_DSRA: gen_op_dsra(); opn = "dsra"; break; case OPC_DSRL: if ((ctx->opcode >> 21) & 1) { gen_op_drotr(); opn = "drotr"; } else { gen_op_dsrl(); opn = "dsrl"; } break; case OPC_DSLL32: gen_op_dsll32(); opn = "dsll32"; break; case OPC_DSRA32: gen_op_dsra32(); opn = "dsra32"; break; case OPC_DSRL32: if ((ctx->opcode >> 21) & 1) { gen_op_drotr32(); opn = "drotr32"; } else { gen_op_dsrl32(); opn = "dsrl32"; } break; #endif default: MIPS_INVAL("imm arith"); generate_exception(ctx, EXCP_RI); return; } GEN_STORE_TN_REG(rt, T0); MIPS_DEBUG("%s %s, %s, %x", opn, regnames[rt], regnames[rs], uimm); } /* Arithmetic */ static void gen_arith (DisasContext *ctx, uint32_t opc, int rd, int rs, int rt) { const char *opn = "unk"; 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; } GEN_LOAD_REG_TN(T0, rs); GEN_LOAD_REG_TN(T1, rt); switch (opc) { case OPC_ADD: save_cpu_state(ctx, 1); gen_op_addo(); opn = "add"; break; case OPC_ADDU: gen_op_add(); opn = "addu"; break; case OPC_SUB: save_cpu_state(ctx, 1); gen_op_subo(); opn = "sub"; break; case OPC_SUBU: gen_op_sub(); opn = "subu"; break; #ifdef MIPS_HAS_MIPS64 case OPC_DADD: save_cpu_state(ctx, 1); gen_op_daddo(); opn = "dadd"; break; case OPC_DADDU: gen_op_dadd(); opn = "daddu"; break; case OPC_DSUB: save_cpu_state(ctx, 1); gen_op_dsubo(); opn = "dsub"; break; case OPC_DSUBU: gen_op_dsub(); opn = "dsubu"; break; #endif case OPC_SLT: gen_op_lt(); opn = "slt"; break; case OPC_SLTU: gen_op_ltu(); opn = "sltu"; break; case OPC_AND: gen_op_and(); opn = "and"; break; case OPC_NOR: gen_op_nor(); opn = "nor"; break; case OPC_OR: gen_op_or(); opn = "or"; break; case OPC_XOR: gen_op_xor(); opn = "xor"; break; case OPC_MUL: gen_op_mul(); opn = "mul"; break; case OPC_MOVN: gen_op_movn(rd); opn = "movn"; goto print; case OPC_MOVZ: gen_op_movz(rd); opn = "movz"; goto print; case OPC_SLLV: gen_op_sllv(); opn = "sllv"; break; case OPC_SRAV: gen_op_srav(); opn = "srav"; break; case OPC_SRLV: if ((ctx->opcode >> 6) & 1) { gen_op_rotrv(); opn = "rotrv"; } else { gen_op_srlv(); opn = "srlv"; } break; #ifdef MIPS_HAS_MIPS64 case OPC_DSLLV: gen_op_dsllv(); opn = "dsllv"; break; case OPC_DSRAV: gen_op_dsrav(); opn = "dsrav"; break; case OPC_DSRLV: if ((ctx->opcode >> 6) & 1) { gen_op_drotrv(); opn = "drotrv"; } else { gen_op_dsrlv(); opn = "dsrlv"; } break; #endif default: MIPS_INVAL("arith"); generate_exception(ctx, EXCP_RI); return; } GEN_STORE_TN_REG(rd, T0); print: MIPS_DEBUG("%s %s, %s, %s", opn, regnames[rd], regnames[rs], regnames[rt]); } /* Arithmetic on HI/LO registers */ static void gen_HILO (DisasContext *ctx, uint32_t opc, int reg) { const char *opn = "unk"; if (reg == 0 && (opc == OPC_MFHI || opc == OPC_MFLO)) { /* Treat as a NOP */ MIPS_DEBUG("NOP"); return; } switch (opc) { case OPC_MFHI: gen_op_load_HI(); GEN_STORE_TN_REG(reg, T0); opn = "mfhi"; break; case OPC_MFLO: gen_op_load_LO(); GEN_STORE_TN_REG(reg, T0); opn = "mflo"; break; case OPC_MTHI: GEN_LOAD_REG_TN(T0, reg); gen_op_store_HI(); opn = "mthi"; break; case OPC_MTLO: GEN_LOAD_REG_TN(T0, reg); gen_op_store_LO(); opn = "mtlo"; break; default: MIPS_INVAL("HILO"); generate_exception(ctx, EXCP_RI); return; } MIPS_DEBUG("%s %s", opn, regnames[reg]); } static void gen_muldiv (DisasContext *ctx, uint32_t opc, int rs, int rt) { const char *opn = "unk"; GEN_LOAD_REG_TN(T0, rs); GEN_LOAD_REG_TN(T1, rt); switch (opc) { case OPC_DIV: gen_op_div(); opn = "div"; break; case OPC_DIVU: gen_op_divu(); opn = "divu"; break; case OPC_MULT: gen_op_mult(); opn = "mult"; break; case OPC_MULTU: gen_op_multu(); opn = "multu"; break; #ifdef MIPS_HAS_MIPS64 case OPC_DDIV: gen_op_ddiv(); opn = "ddiv"; break; case OPC_DDIVU: gen_op_ddivu(); opn = "ddivu"; break; case OPC_DMULT: gen_op_dmult(); opn = "dmult"; break; case OPC_DMULTU: gen_op_dmultu(); opn = "dmultu"; break; #endif case OPC_MADD: gen_op_madd(); opn = "madd"; break; case OPC_MADDU: gen_op_maddu(); opn = "maddu"; break; case OPC_MSUB: gen_op_msub(); opn = "msub"; break; case OPC_MSUBU: gen_op_msubu(); opn = "msubu"; break; default: MIPS_INVAL("mul/div"); generate_exception(ctx, EXCP_RI); return; } MIPS_DEBUG("%s %s %s", opn, regnames[rs], regnames[rt]); } static void gen_cl (DisasContext *ctx, uint32_t opc, int rd, int rs) { const char *opn = "unk"; if (rd == 0) { /* Treat as a NOP */ MIPS_DEBUG("NOP"); return; } GEN_LOAD_REG_TN(T0, rs); switch (opc) { case OPC_CLO: gen_op_clo(); opn = "clo"; break; case OPC_CLZ: gen_op_clz(); opn = "clz"; break; #ifdef MIPS_HAS_MIPS64 case OPC_DCLO: gen_op_dclo(); opn = "dclo"; break; case OPC_DCLZ: gen_op_dclz(); opn = "dclz"; break; #endif default: MIPS_INVAL("CLx"); generate_exception(ctx, EXCP_RI); return; } gen_op_store_T0_gpr(rd); MIPS_DEBUG("%s %s, %s", opn, regnames[rd], regnames[rs]); } /* Traps */ static void gen_trap (DisasContext *ctx, uint32_t opc, int rs, int rt, int16_t imm) { int cond; 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_REG_TN(T0, rs); GEN_LOAD_REG_TN(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_REG_TN(T0, rs); GEN_LOAD_IMM_TN(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 */ gen_op_set_T0(1); 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 */ return; default: MIPS_INVAL("TRAP"); generate_exception(ctx, EXCP_RI); return; } } else { switch (opc) { case OPC_TEQ: case OPC_TEQI: gen_op_eq(); break; case OPC_TGE: case OPC_TGEI: gen_op_ge(); break; case OPC_TGEU: case OPC_TGEIU: gen_op_geu(); break; case OPC_TLT: case OPC_TLTI: gen_op_lt(); break; case OPC_TLTU: case OPC_TLTIU: gen_op_ltu(); break; case OPC_TNE: case OPC_TNEI: gen_op_ne(); break; default: MIPS_INVAL("TRAP"); generate_exception(ctx, EXCP_RI); return; } } save_cpu_state(ctx, 1); gen_op_trap(); ctx->bstate = BS_STOP; } 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)) { if (n == 0) gen_op_goto_tb0(TBPARAM(tb)); else gen_op_goto_tb1(TBPARAM(tb)); gen_op_save_pc(dest); gen_op_set_T0((long)tb + n); gen_op_exit_tb(); } else { gen_op_save_pc(dest); gen_op_set_T0(0); gen_op_exit_tb(); } } /* Branches (before delay slot) */ static void gen_compute_branch (DisasContext *ctx, uint32_t opc, int rs, int rt, int32_t offset) { target_ulong btarget; int blink, bcond; btarget = -1; blink = 0; bcond = 0; /* 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_REG_TN(T0, rs); GEN_LOAD_REG_TN(T1, rt); bcond = 1; } btarget = ctx->pc + 4 + offset; break; case OPC_BGEZ: case OPC_BGEZAL: 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_BLTZALL: case OPC_BLTZL: /* Compare to zero */ if (rs != 0) { gen_op_load_gpr_T0(rs); bcond = 1; } btarget = ctx->pc + 4 + offset; break; case OPC_J: case OPC_JAL: /* Jump to immediate */ btarget = ((ctx->pc + 4) & (int32_t)0xF0000000) | offset; break; case OPC_JR: case OPC_JALR: /* Jump to register */ if (offset != 0 && offset != 16) { /* Hint = 0 is JR/JALR, hint 16 is JR.HB/JALR.HB, the others are reserved. */ generate_exception(ctx, EXCP_RI); return; } GEN_LOAD_REG_TN(T2, rs); break; default: MIPS_INVAL("branch/jump"); generate_exception(ctx, EXCP_RI); return; } if (bcond == 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_BGEZAL: /* 0 >= 0 */ case OPC_BGEZALL: /* 0 >= 0 likely */ /* 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 */ /* Treated as NOP */ MIPS_DEBUG("bnever (NOP)"); return; case OPC_BLTZAL: /* 0 < 0 */ gen_op_set_T0(ctx->pc + 8); gen_op_store_T0_gpr(31); return; case OPC_BLTZALL: /* 0 < 0 likely */ gen_op_set_T0(ctx->pc + 8); gen_op_store_T0_gpr(31); gen_goto_tb(ctx, 0, ctx->pc + 4); return; 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"); gen_goto_tb(ctx, 0, ctx->pc + 4); return; case OPC_J: ctx->hflags |= MIPS_HFLAG_B; MIPS_DEBUG("j %08x", btarget); break; case OPC_JAL: blink = 31; ctx->hflags |= MIPS_HFLAG_B; MIPS_DEBUG("jal %08x", btarget); break; case OPC_JR: ctx->hflags |= MIPS_HFLAG_BR; MIPS_DEBUG("jr %s", regnames[rs]); break; case OPC_JALR: blink = rt; ctx->hflags |= MIPS_HFLAG_BR; MIPS_DEBUG("jalr %s, %s", regnames[rt], regnames[rs]); break; default: MIPS_INVAL("branch/jump"); generate_exception(ctx, EXCP_RI); return; } } else { switch (opc) { case OPC_BEQ: gen_op_eq(); MIPS_DEBUG("beq %s, %s, %08x", regnames[rs], regnames[rt], btarget); goto not_likely; case OPC_BEQL: gen_op_eq(); MIPS_DEBUG("beql %s, %s, %08x", regnames[rs], regnames[rt], btarget); goto likely; case OPC_BNE: gen_op_ne(); MIPS_DEBUG("bne %s, %s, %08x", regnames[rs], regnames[rt], btarget); goto not_likely; case OPC_BNEL: gen_op_ne(); MIPS_DEBUG("bnel %s, %s, %08x", regnames[rs], regnames[rt], btarget); goto likely; case OPC_BGEZ: gen_op_gez(); MIPS_DEBUG("bgez %s, %08x", regnames[rs], btarget); goto not_likely; case OPC_BGEZL: gen_op_gez(); MIPS_DEBUG("bgezl %s, %08x", regnames[rs], btarget); goto likely; case OPC_BGEZAL: gen_op_gez(); MIPS_DEBUG("bgezal %s, %08x", regnames[rs], btarget); blink = 31; goto not_likely; case OPC_BGEZALL: gen_op_gez(); blink = 31; MIPS_DEBUG("bgezall %s, %08x", regnames[rs], btarget); goto likely; case OPC_BGTZ: gen_op_gtz(); MIPS_DEBUG("bgtz %s, %08x", regnames[rs], btarget); goto not_likely; case OPC_BGTZL: gen_op_gtz(); MIPS_DEBUG("bgtzl %s, %08x", regnames[rs], btarget); goto likely; case OPC_BLEZ: gen_op_lez(); MIPS_DEBUG("blez %s, %08x", regnames[rs], btarget); goto not_likely; case OPC_BLEZL: gen_op_lez(); MIPS_DEBUG("blezl %s, %08x", regnames[rs], btarget); goto likely; case OPC_BLTZ: gen_op_ltz(); MIPS_DEBUG("bltz %s, %08x", regnames[rs], btarget); goto not_likely; case OPC_BLTZL: gen_op_ltz(); MIPS_DEBUG("bltzl %s, %08x", regnames[rs], btarget); goto likely; case OPC_BLTZAL: gen_op_ltz(); blink = 31; MIPS_DEBUG("bltzal %s, %08x", regnames[rs], btarget); not_likely: ctx->hflags |= MIPS_HFLAG_BC; break; case OPC_BLTZALL: gen_op_ltz(); blink = 31; MIPS_DEBUG("bltzall %s, %08x", regnames[rs], btarget); likely: ctx->hflags |= MIPS_HFLAG_BL; break; } gen_op_set_bcond(); } MIPS_DEBUG("enter ds: link %d cond %02x target %08x", blink, ctx->hflags, btarget); ctx->btarget = btarget; if (blink > 0) { gen_op_set_T0(ctx->pc + 8); gen_op_store_T0_gpr(blink); } return; } /* special3 bitfield operations */ static void gen_bitops (DisasContext *ctx, uint32_t opc, int rt, int rs, int lsb, int msb) { GEN_LOAD_REG_TN(T1, rs); switch (opc) { case OPC_EXT: if (lsb + msb > 31) goto fail; gen_op_ext(lsb, msb + 1); break; case OPC_DEXTM: if (lsb + msb > 63) goto fail; gen_op_ext(lsb, msb + 1 + 32); break; case OPC_DEXTU: if (lsb + msb > 63) goto fail; gen_op_ext(lsb + 32, msb + 1); break; case OPC_DEXT: gen_op_ext(lsb, msb + 1); break; case OPC_INS: if (lsb > msb) goto fail; GEN_LOAD_REG_TN(T2, rt); gen_op_ins(lsb, msb - lsb + 1); break; case OPC_DINSM: if (lsb > msb) goto fail; GEN_LOAD_REG_TN(T2, rt); gen_op_ins(lsb, msb - lsb + 1 + 32); break; case OPC_DINSU: if (lsb > msb) goto fail; GEN_LOAD_REG_TN(T2, rt); gen_op_ins(lsb + 32, msb - lsb + 1); break; case OPC_DINS: if (lsb > msb) goto fail; GEN_LOAD_REG_TN(T2, rt); gen_op_ins(lsb, msb - lsb + 1); break; default: fail: MIPS_INVAL("bitops"); generate_exception(ctx, EXCP_RI); return; } GEN_STORE_TN_REG(rt, T0); } /* CP0 (MMU and control) */ static void gen_mfc0 (DisasContext *ctx, int reg, int sel) { const char *rn = "invalid"; switch (reg) { case 0: switch (sel) { case 0: gen_op_mfc0_index(); rn = "Index"; break; case 1: // gen_op_mfc0_mvpcontrol(); /* MT ASE */ rn = "MVPControl"; // break; case 2: // gen_op_mfc0_mvpconf0(); /* MT ASE */ rn = "MVPConf0"; // break; case 3: // gen_op_mfc0_mvpconf1(); /* MT ASE */ rn = "MVPConf1"; // break; default: goto die; } break; case 1: switch (sel) { case 0: gen_op_mfc0_random(); rn = "Random"; break; case 1: // gen_op_mfc0_vpecontrol(); /* MT ASE */ rn = "VPEControl"; // break; case 2: // gen_op_mfc0_vpeconf0(); /* MT ASE */ rn = "VPEConf0"; // break; case 3: // gen_op_mfc0_vpeconf1(); /* MT ASE */ rn = "VPEConf1"; // break; case 4: // gen_op_mfc0_YQMask(); /* MT ASE */ rn = "YQMask"; // break; case 5: // gen_op_mfc0_vpeschedule(); /* MT ASE */ rn = "VPESchedule"; // break; case 6: // gen_op_mfc0_vpeschefback(); /* MT ASE */ rn = "VPEScheFBack"; // break; case 7: // gen_op_mfc0_vpeopt(); /* MT ASE */ rn = "VPEOpt"; // break; default: goto die; } break; case 2: switch (sel) { case 0: gen_op_mfc0_entrylo0(); rn = "EntryLo0"; break; case 1: // gen_op_mfc0_tcstatus(); /* MT ASE */ rn = "TCStatus"; // break; case 2: // gen_op_mfc0_tcbind(); /* MT ASE */ rn = "TCBind"; // break; case 3: // gen_op_mfc0_tcrestart(); /* MT ASE */ rn = "TCRestart"; // break; case 4: // gen_op_mfc0_tchalt(); /* MT ASE */ rn = "TCHalt"; // break; case 5: // gen_op_mfc0_tccontext(); /* MT ASE */ rn = "TCContext"; // break; case 6: // gen_op_mfc0_tcschedule(); /* MT ASE */ rn = "TCSchedule"; // break; case 7: // gen_op_mfc0_tcschefback(); /* MT ASE */ rn = "TCScheFBack"; // break; default: goto die; } break; case 3: switch (sel) { case 0: gen_op_mfc0_entrylo1(); rn = "EntryLo1"; break; default: goto die; } break; case 4: switch (sel) { case 0: gen_op_mfc0_context(); rn = "Context"; break; case 1: // gen_op_mfc0_contextconfig(); /* SmartMIPS ASE */ rn = "ContextConfig"; // break; default: goto die; } break; case 5: switch (sel) { case 0: gen_op_mfc0_pagemask(); rn = "PageMask"; break; case 1: gen_op_mfc0_pagegrain(); rn = "PageGrain"; break; default: goto die; } break; case 6: switch (sel) { case 0: gen_op_mfc0_wired(); rn = "Wired"; break; case 1: // gen_op_mfc0_srsconf0(); /* shadow registers */ rn = "SRSConf0"; // break; case 2: // gen_op_mfc0_srsconf1(); /* shadow registers */ rn = "SRSConf1"; // break; case 3: // gen_op_mfc0_srsconf2(); /* shadow registers */ rn = "SRSConf2"; // break; case 4: // gen_op_mfc0_srsconf3(); /* shadow registers */ rn = "SRSConf3"; // break; case 5: // gen_op_mfc0_srsconf4(); /* shadow registers */ rn = "SRSConf4"; // break; default: goto die; } break; case 7: switch (sel) { case 0: gen_op_mfc0_hwrena(); rn = "HWREna"; break; default: goto die; } break; case 8: switch (sel) { case 0: gen_op_mfc0_badvaddr(); rn = "BadVaddr"; break; default: goto die; } break; case 9: switch (sel) { case 0: gen_op_mfc0_count(); rn = "Count"; break; /* 6,7 are implementation dependent */ default: goto die; } break; case 10: switch (sel) { case 0: gen_op_mfc0_entryhi(); rn = "EntryHi"; break; default: goto die; } break; case 11: switch (sel) { case 0: gen_op_mfc0_compare(); rn = "Compare"; break; /* 6,7 are implementation dependent */ default: goto die; } break; case 12: switch (sel) { case 0: gen_op_mfc0_status(); rn = "Status"; break; case 1: gen_op_mfc0_intctl(); rn = "IntCtl"; break; case 2: gen_op_mfc0_srsctl(); rn = "SRSCtl"; break; case 3: // gen_op_mfc0_srsmap(); /* shadow registers */ rn = "SRSMap"; // break; default: goto die; } break; case 13: switch (sel) { case 0: gen_op_mfc0_cause(); rn = "Cause"; break; default: goto die; } break; case 14: switch (sel) { case 0: gen_op_mfc0_epc(); rn = "EPC"; break; default: goto die; } break; case 15: switch (sel) { case 0: gen_op_mfc0_prid(); rn = "PRid"; break; case 1: gen_op_mfc0_ebase(); rn = "EBase"; break; default: goto die; } break; case 16: switch (sel) { case 0: gen_op_mfc0_config0(); rn = "Config"; break; case 1: gen_op_mfc0_config1(); rn = "Config1"; break; case 2: gen_op_mfc0_config2(); rn = "Config2"; break; case 3: gen_op_mfc0_config3(); rn = "Config3"; break; /* 6,7 are implementation dependent */ default: goto die; } break; case 17: switch (sel) { case 0: gen_op_mfc0_lladdr(); rn = "LLAddr"; break; default: goto die; } break; case 18: switch (sel) { case 0: gen_op_mfc0_watchlo0(); rn = "WatchLo"; break; case 1: // gen_op_mfc0_watchlo1(); rn = "WatchLo1"; // break; case 2: // gen_op_mfc0_watchlo2(); rn = "WatchLo2"; // break; case 3: // gen_op_mfc0_watchlo3(); rn = "WatchLo3"; // break; case 4: // gen_op_mfc0_watchlo4(); rn = "WatchLo4"; // break; case 5: // gen_op_mfc0_watchlo5(); rn = "WatchLo5"; // break; case 6: // gen_op_mfc0_watchlo6(); rn = "WatchLo6"; // break; case 7: // gen_op_mfc0_watchlo7(); rn = "WatchLo7"; // break; default: goto die; } break; case 19: switch (sel) { case 0: gen_op_mfc0_watchhi0(); rn = "WatchHi"; break; case 1: // gen_op_mfc0_watchhi1(); rn = "WatchHi1"; // break; case 2: // gen_op_mfc0_watchhi2(); rn = "WatchHi2"; // break; case 3: // gen_op_mfc0_watchhi3(); rn = "WatchHi3"; // break; case 4: // gen_op_mfc0_watchhi4(); rn = "WatchHi4"; // break; case 5: // gen_op_mfc0_watchhi5(); rn = "WatchHi5"; // break; case 6: // gen_op_mfc0_watchhi6(); rn = "WatchHi6"; // break; case 7: // gen_op_mfc0_watchhi7(); rn = "WatchHi7"; // break; default: goto die; } break; case 20: switch (sel) { case 0: /* 64 bit MMU only */ gen_op_mfc0_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_op_mfc0_framemask(); rn = "Framemask"; break; default: goto die; } break; case 22: /* ignored */ rn = "'Diagnostic"; /* implementation dependent */ break; case 23: switch (sel) { case 0: gen_op_mfc0_debug(); /* EJTAG support */ rn = "Debug"; break; case 1: // gen_op_mfc0_tracecontrol(); /* PDtrace support */ rn = "TraceControl"; // break; case 2: // gen_op_mfc0_tracecontrol2(); /* PDtrace support */ rn = "TraceControl2"; // break; case 3: // gen_op_mfc0_usertracedata(); /* PDtrace support */ rn = "UserTraceData"; // break; case 4: // gen_op_mfc0_debug(); /* PDtrace support */ rn = "TraceBPC"; // break; default: goto die; } break; case 24: switch (sel) { case 0: gen_op_mfc0_depc(); /* EJTAG support */ rn = "DEPC"; break; default: goto die; } break; case 25: switch (sel) { case 0: gen_op_mfc0_performance0(); rn = "Performance0"; break; case 1: // gen_op_mfc0_performance1(); rn = "Performance1"; // break; case 2: // gen_op_mfc0_performance2(); rn = "Performance2"; // break; case 3: // gen_op_mfc0_performance3(); rn = "Performance3"; // break; case 4: // gen_op_mfc0_performance4(); rn = "Performance4"; // break; case 5: // gen_op_mfc0_performance5(); rn = "Performance5"; // break; case 6: // gen_op_mfc0_performance6(); rn = "Performance6"; // break; case 7: // gen_op_mfc0_performance7(); rn = "Performance7"; // break; default: goto die; } break; case 26: rn = "ECC"; break; case 27: switch (sel) { /* ignored */ case 0 ... 3: rn = "CacheErr"; break; default: goto die; } break; case 28: switch (sel) { case 0: case 2: case 4: case 6: gen_op_mfc0_taglo(); rn = "TagLo"; break; case 1: case 3: case 5: case 7: gen_op_mfc0_datalo(); rn = "DataLo"; break; default: goto die; } break; case 29: switch (sel) { case 0: case 2: case 4: case 6: gen_op_mfc0_taghi(); rn = "TagHi"; break; case 1: case 3: case 5: case 7: gen_op_mfc0_datahi(); rn = "DataHi"; break; default: goto die; } break; case 30: switch (sel) { case 0: gen_op_mfc0_errorepc(); rn = "ErrorEPC"; break; default: goto die; } break; case 31: switch (sel) { case 0: gen_op_mfc0_desave(); /* EJTAG support */ rn = "DESAVE"; break; default: goto die; } break; default: goto die; } #if defined MIPS_DEBUG_DISAS if (loglevel & CPU_LOG_TB_IN_ASM) { fprintf(logfile, "mfc0 %s (reg %d sel %d)\n", rn, reg, sel); } #endif return; die: #if defined MIPS_DEBUG_DISAS if (loglevel & CPU_LOG_TB_IN_ASM) { fprintf(logfile, "mfc0 %s (reg %d sel %d)\n", rn, reg, sel); } #endif generate_exception(ctx, EXCP_RI); } static void gen_mtc0 (DisasContext *ctx, int reg, int sel) { const char *rn = "invalid"; switch (reg) { case 0: switch (sel) { case 0: gen_op_mtc0_index(); rn = "Index"; break; case 1: // gen_op_mtc0_mvpcontrol(); /* MT ASE */ rn = "MVPControl"; // break; case 2: // gen_op_mtc0_mvpconf0(); /* MT ASE */ rn = "MVPConf0"; // break; case 3: // gen_op_mtc0_mvpconf1(); /* MT ASE */ rn = "MVPConf1"; // break; default: goto die; } break; case 1: switch (sel) { case 0: /* ignored */ rn = "Random"; break; case 1: // gen_op_mtc0_vpecontrol(); /* MT ASE */ rn = "VPEControl"; // break; case 2: // gen_op_mtc0_vpeconf0(); /* MT ASE */ rn = "VPEConf0"; // break; case 3: // gen_op_mtc0_vpeconf1(); /* MT ASE */ rn = "VPEConf1"; // break; case 4: // gen_op_mtc0_YQMask(); /* MT ASE */ rn = "YQMask"; // break; case 5: // gen_op_mtc0_vpeschedule(); /* MT ASE */ rn = "VPESchedule"; // break; case 6: // gen_op_mtc0_vpeschefback(); /* MT ASE */ rn = "VPEScheFBack"; // break; case 7: // gen_op_mtc0_vpeopt(); /* MT ASE */ rn = "VPEOpt"; // break; default: goto die; } break; case 2: switch (sel) { case 0: gen_op_mtc0_entrylo0(); rn = "EntryLo0"; break; case 1: // gen_op_mtc0_tcstatus(); /* MT ASE */ rn = "TCStatus"; // break; case 2: // gen_op_mtc0_tcbind(); /* MT ASE */ rn = "TCBind"; // break; case 3: // gen_op_mtc0_tcrestart(); /* MT ASE */ rn = "TCRestart"; // break; case 4: // gen_op_mtc0_tchalt(); /* MT ASE */ rn = "TCHalt"; // break; case 5: // gen_op_mtc0_tccontext(); /* MT ASE */ rn = "TCContext"; // break; case 6: // gen_op_mtc0_tcschedule(); /* MT ASE */ rn = "TCSchedule"; // break; case 7: // gen_op_mtc0_tcschefback(); /* MT ASE */ rn = "TCScheFBack"; // break; default: goto die; } break; case 3: switch (sel) { case 0: gen_op_mtc0_entrylo1(); rn = "EntryLo1"; break; default: goto die; } break; case 4: switch (sel) { case 0: gen_op_mtc0_context(); rn = "Context"; break; case 1: // gen_op_mtc0_contextconfig(); /* SmartMIPS ASE */ rn = "ContextConfig"; // break; default: goto die; } break; case 5: switch (sel) { case 0: gen_op_mtc0_pagemask(); rn = "PageMask"; break; case 1: gen_op_mtc0_pagegrain(); rn = "PageGrain"; break; default: goto die; } break; case 6: switch (sel) { case 0: gen_op_mtc0_wired(); rn = "Wired"; break; case 1: // gen_op_mtc0_srsconf0(); /* shadow registers */ rn = "SRSConf0"; // break; case 2: // gen_op_mtc0_srsconf1(); /* shadow registers */ rn = "SRSConf1"; // break; case 3: // gen_op_mtc0_srsconf2(); /* shadow registers */ rn = "SRSConf2"; // break; case 4: // gen_op_mtc0_srsconf3(); /* shadow registers */ rn = "SRSConf3"; // break; case 5: // gen_op_mtc0_srsconf4(); /* shadow registers */ rn = "SRSConf4"; // break; default: goto die; } break; case 7: switch (sel) { case 0: gen_op_mtc0_hwrena(); rn = "HWREna"; break; default: goto die; } break; case 8: /* ignored */ rn = "BadVaddr"; break; case 9: switch (sel) { case 0: gen_op_mtc0_count(); 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_op_mtc0_entryhi(); rn = "EntryHi"; break; default: goto die; } break; case 11: switch (sel) { case 0: gen_op_mtc0_compare(); 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: gen_op_mtc0_status(); rn = "Status"; break; case 1: gen_op_mtc0_intctl(); rn = "IntCtl"; break; case 2: gen_op_mtc0_srsctl(); rn = "SRSCtl"; break; case 3: // gen_op_mtc0_srsmap(); /* shadow registers */ rn = "SRSMap"; // break; default: goto die; } /* Stop translation as we may have switched the execution mode */ ctx->bstate = BS_STOP; break; case 13: switch (sel) { case 0: gen_op_mtc0_cause(); rn = "Cause"; break; default: goto die; } /* Stop translation as we may have switched the execution mode */ ctx->bstate = BS_STOP; break; case 14: switch (sel) { case 0: gen_op_mtc0_epc(); rn = "EPC"; break; default: goto die; } break; case 15: switch (sel) { case 0: /* ignored */ rn = "PRid"; break; case 1: gen_op_mtc0_ebase(); rn = "EBase"; break; default: goto die; } break; case 16: switch (sel) { case 0: gen_op_mtc0_config0(); rn = "Config"; break; case 1: /* ignored */ rn = "Config1"; break; case 2: gen_op_mtc0_config2(); rn = "Config2"; break; case 3: /* ignored */ rn = "Config3"; break; /* 6,7 are implementation dependent */ default: rn = "Invalid config selector"; goto die; } /* Stop translation as we may have switched the execution mode */ ctx->bstate = BS_STOP; break; case 17: switch (sel) { case 0: /* ignored */ rn = "LLAddr"; break; default: goto die; } break; case 18: switch (sel) { case 0: gen_op_mtc0_watchlo0(); rn = "WatchLo"; break; case 1: // gen_op_mtc0_watchlo1(); rn = "WatchLo1"; // break; case 2: // gen_op_mtc0_watchlo2(); rn = "WatchLo2"; // break; case 3: // gen_op_mtc0_watchlo3(); rn = "WatchLo3"; // break; case 4: // gen_op_mtc0_watchlo4(); rn = "WatchLo4"; // break; case 5: // gen_op_mtc0_watchlo5(); rn = "WatchLo5"; // break; case 6: // gen_op_mtc0_watchlo6(); rn = "WatchLo6"; // break; case 7: // gen_op_mtc0_watchlo7(); rn = "WatchLo7"; // break; default: goto die; } break; case 19: switch (sel) { case 0: gen_op_mtc0_watchhi0(); rn = "WatchHi"; break; case 1: // gen_op_mtc0_watchhi1(); rn = "WatchHi1"; // break; case 2: // gen_op_mtc0_watchhi2(); rn = "WatchHi2"; // break; case 3: // gen_op_mtc0_watchhi3(); rn = "WatchHi3"; // break; case 4: // gen_op_mtc0_watchhi4(); rn = "WatchHi4"; // break; case 5: // gen_op_mtc0_watchhi5(); rn = "WatchHi5"; // break; case 6: // gen_op_mtc0_watchhi6(); rn = "WatchHi6"; // break; case 7: // gen_op_mtc0_watchhi7(); rn = "WatchHi7"; // break; default: goto die; } break; case 20: switch (sel) { case 0: /* 64 bit MMU only */ gen_op_mtc0_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_op_mtc0_framemask(); rn = "Framemask"; break; default: goto die; } break; case 22: /* ignored */ rn = "Diagnostic"; /* implementation dependent */ break; case 23: switch (sel) { case 0: gen_op_mtc0_debug(); /* EJTAG support */ rn = "Debug"; break; case 1: // gen_op_mtc0_tracecontrol(); /* PDtrace support */ rn = "TraceControl"; // break; case 2: // gen_op_mtc0_tracecontrol2(); /* PDtrace support */ rn = "TraceControl2"; // break; case 3: // gen_op_mtc0_usertracedata(); /* PDtrace support */ rn = "UserTraceData"; // break; case 4: // gen_op_mtc0_debug(); /* PDtrace support */ rn = "TraceBPC"; // break; default: goto die; } /* Stop translation as we may have switched the execution mode */ ctx->bstate = BS_STOP; break; case 24: switch (sel) { case 0: gen_op_mtc0_depc(); /* EJTAG support */ rn = "DEPC"; break; default: goto die; } break; case 25: switch (sel) { case 0: gen_op_mtc0_performance0(); rn = "Performance0"; break; case 1: // gen_op_mtc0_performance1(); rn = "Performance1"; // break; case 2: // gen_op_mtc0_performance2(); rn = "Performance2"; // break; case 3: // gen_op_mtc0_performance3(); rn = "Performance3"; // break; case 4: // gen_op_mtc0_performance4(); rn = "Performance4"; // break; case 5: // gen_op_mtc0_performance5(); rn = "Performance5"; // break; case 6: // gen_op_mtc0_performance6(); rn = "Performance6"; // break; case 7: // gen_op_mtc0_performance7(); 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_op_mtc0_taglo(); rn = "TagLo"; break; case 1: case 3: case 5: case 7: gen_op_mtc0_datalo(); rn = "DataLo"; break; default: goto die; } break; case 29: switch (sel) { case 0: case 2: case 4: case 6: gen_op_mtc0_taghi(); rn = "TagHi"; break; case 1: case 3: case 5: case 7: gen_op_mtc0_datahi(); rn = "DataHi"; break; default: rn = "invalid sel"; goto die; } break; case 30: switch (sel) { case 0: gen_op_mtc0_errorepc(); rn = "ErrorEPC"; break; default: goto die; } break; case 31: switch (sel) { case 0: gen_op_mtc0_desave(); /* EJTAG support */ rn = "DESAVE"; break; default: goto die; } /* Stop translation as we may have switched the execution mode */ ctx->bstate = BS_STOP; break; default: goto die; } #if defined MIPS_DEBUG_DISAS if (loglevel & CPU_LOG_TB_IN_ASM) { fprintf(logfile, "mtc0 %s (reg %d sel %d)\n", rn, reg, sel); } #endif return; die: #if defined MIPS_DEBUG_DISAS if (loglevel & CPU_LOG_TB_IN_ASM) { fprintf(logfile, "mtc0 %s (reg %d sel %d)\n", rn, reg, sel); } #endif generate_exception(ctx, EXCP_RI); } static void gen_dmfc0 (DisasContext *ctx, int reg, int sel) { const char *rn = "invalid"; switch (reg) { case 0: switch (sel) { case 0: gen_op_mfc0_index(); rn = "Index"; break; case 1: // gen_op_dmfc0_mvpcontrol(); /* MT ASE */ rn = "MVPControl"; // break; case 2: // gen_op_dmfc0_mvpconf0(); /* MT ASE */ rn = "MVPConf0"; // break; case 3: // gen_op_dmfc0_mvpconf1(); /* MT ASE */ rn = "MVPConf1"; // break; default: goto die; } break; case 1: switch (sel) { case 0: gen_op_mfc0_random(); rn = "Random"; break; case 1: // gen_op_dmfc0_vpecontrol(); /* MT ASE */ rn = "VPEControl"; // break; case 2: // gen_op_dmfc0_vpeconf0(); /* MT ASE */ rn = "VPEConf0"; // break; case 3: // gen_op_dmfc0_vpeconf1(); /* MT ASE */ rn = "VPEConf1"; // break; case 4: // gen_op_dmfc0_YQMask(); /* MT ASE */ rn = "YQMask"; // break; case 5: // gen_op_dmfc0_vpeschedule(); /* MT ASE */ rn = "VPESchedule"; // break; case 6: // gen_op_dmfc0_vpeschefback(); /* MT ASE */ rn = "VPEScheFBack"; // break; case 7: // gen_op_dmfc0_vpeopt(); /* MT ASE */ rn = "VPEOpt"; // break; default: goto die; } break; case 2: switch (sel) { case 0: gen_op_dmfc0_entrylo0(); rn = "EntryLo0"; break; case 1: // gen_op_dmfc0_tcstatus(); /* MT ASE */ rn = "TCStatus"; // break; case 2: // gen_op_dmfc0_tcbind(); /* MT ASE */ rn = "TCBind"; // break; case 3: // gen_op_dmfc0_tcrestart(); /* MT ASE */ rn = "TCRestart"; // break; case 4: // gen_op_dmfc0_tchalt(); /* MT ASE */ rn = "TCHalt"; // break; case 5: // gen_op_dmfc0_tccontext(); /* MT ASE */ rn = "TCContext"; // break; case 6: // gen_op_dmfc0_tcschedule(); /* MT ASE */ rn = "TCSchedule"; // break; case 7: // gen_op_dmfc0_tcschefback(); /* MT ASE */ rn = "TCScheFBack"; // break; default: goto die; } break; case 3: switch (sel) { case 0: gen_op_dmfc0_entrylo1(); rn = "EntryLo1"; break; default: goto die; } break; case 4: switch (sel) { case 0: gen_op_dmfc0_context(); rn = "Context"; break; case 1: // gen_op_dmfc0_contextconfig(); /* SmartMIPS ASE */ rn = "ContextConfig"; // break; default: goto die; } break; case 5: switch (sel) { case 0: gen_op_mfc0_pagemask(); rn = "PageMask"; break; case 1: gen_op_mfc0_pagegrain(); rn = "PageGrain"; break; default: goto die; } break; case 6: switch (sel) { case 0: gen_op_mfc0_wired(); rn = "Wired"; break; case 1: // gen_op_dmfc0_srsconf0(); /* shadow registers */ rn = "SRSConf0"; // break; case 2: // gen_op_dmfc0_srsconf1(); /* shadow registers */ rn = "SRSConf1"; // break; case 3: // gen_op_dmfc0_srsconf2(); /* shadow registers */ rn = "SRSConf2"; // break; case 4: // gen_op_dmfc0_srsconf3(); /* shadow registers */ rn = "SRSConf3"; // break; case 5: // gen_op_dmfc0_srsconf4(); /* shadow registers */ rn = "SRSConf4"; // break; default: goto die; } break; case 7: switch (sel) { case 0: gen_op_mfc0_hwrena(); rn = "HWREna"; break; default: goto die; } break; case 8: switch (sel) { case 0: gen_op_dmfc0_badvaddr(); rn = "BadVaddr"; break; default: goto die; } break; case 9: switch (sel) { case 0: gen_op_mfc0_count(); rn = "Count"; break; /* 6,7 are implementation dependent */ default: goto die; } break; case 10: switch (sel) { case 0: gen_op_dmfc0_entryhi(); rn = "EntryHi"; break; default: goto die; } break; case 11: switch (sel) { case 0: gen_op_mfc0_compare(); rn = "Compare"; break; /* 6,7 are implementation dependent */ default: goto die; } break; case 12: switch (sel) { case 0: gen_op_mfc0_status(); rn = "Status"; break; case 1: gen_op_mfc0_intctl(); rn = "IntCtl"; break; case 2: gen_op_mfc0_srsctl(); rn = "SRSCtl"; break; case 3: gen_op_mfc0_srsmap(); /* shadow registers */ rn = "SRSMap"; break; default: goto die; } break; case 13: switch (sel) { case 0: gen_op_mfc0_cause(); rn = "Cause"; break; default: goto die; } break; case 14: switch (sel) { case 0: gen_op_dmfc0_epc(); rn = "EPC"; break; default: goto die; } break; case 15: switch (sel) { case 0: gen_op_mfc0_prid(); rn = "PRid"; break; case 1: gen_op_dmfc0_ebase(); rn = "EBase"; break; default: goto die; } break; case 16: switch (sel) { case 0: gen_op_mfc0_config0(); rn = "Config"; break; case 1: gen_op_mfc0_config1(); rn = "Config1"; break; case 2: gen_op_mfc0_config2(); rn = "Config2"; break; case 3: gen_op_mfc0_config3(); rn = "Config3"; break; /* 6,7 are implementation dependent */ default: goto die; } break; case 17: switch (sel) { case 0: gen_op_dmfc0_lladdr(); rn = "LLAddr"; break; default: goto die; } break; case 18: switch (sel) { case 0: gen_op_dmfc0_watchlo0(); rn = "WatchLo"; break; case 1: // gen_op_dmfc0_watchlo1(); rn = "WatchLo1"; // break; case 2: // gen_op_dmfc0_watchlo2(); rn = "WatchLo2"; // break; case 3: // gen_op_dmfc0_watchlo3(); rn = "WatchLo3"; // break; case 4: // gen_op_dmfc0_watchlo4(); rn = "WatchLo4"; // break; case 5: // gen_op_dmfc0_watchlo5(); rn = "WatchLo5"; // break; case 6: // gen_op_dmfc0_watchlo6(); rn = "WatchLo6"; // break; case 7: // gen_op_dmfc0_watchlo7(); rn = "WatchLo7"; // break; default: goto die; } break; case 19: switch (sel) { case 0: gen_op_mfc0_watchhi0(); rn = "WatchHi"; break; case 1: // gen_op_mfc0_watchhi1(); rn = "WatchHi1"; // break; case 2: // gen_op_mfc0_watchhi2(); rn = "WatchHi2"; // break; case 3: // gen_op_mfc0_watchhi3(); rn = "WatchHi3"; // break; case 4: // gen_op_mfc0_watchhi4(); rn = "WatchHi4"; // break; case 5: // gen_op_mfc0_watchhi5(); rn = "WatchHi5"; // break; case 6: // gen_op_mfc0_watchhi6(); rn = "WatchHi6"; // break; case 7: // gen_op_mfc0_watchhi7(); rn = "WatchHi7"; // break; default: goto die; } break; case 20: switch (sel) { case 0: /* 64 bit MMU only */ gen_op_dmfc0_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_op_mfc0_framemask(); rn = "Framemask"; break; default: goto die; } break; case 22: /* ignored */ rn = "'Diagnostic"; /* implementation dependent */ break; case 23: switch (sel) { case 0: gen_op_mfc0_debug(); /* EJTAG support */ rn = "Debug"; break; case 1: // gen_op_dmfc0_tracecontrol(); /* PDtrace support */ rn = "TraceControl"; // break; case 2: // gen_op_dmfc0_tracecontrol2(); /* PDtrace support */ rn = "TraceControl2"; // break; case 3: // gen_op_dmfc0_usertracedata(); /* PDtrace support */ rn = "UserTraceData"; // break; case 4: // gen_op_dmfc0_debug(); /* PDtrace support */ rn = "TraceBPC"; // break; default: goto die; } break; case 24: switch (sel) { case 0: gen_op_dmfc0_depc(); /* EJTAG support */ rn = "DEPC"; break; default: goto die; } break; case 25: switch (sel) { case 0: gen_op_mfc0_performance0(); rn = "Performance0"; break; case 1: // gen_op_dmfc0_performance1(); rn = "Performance1"; // break; case 2: // gen_op_dmfc0_performance2(); rn = "Performance2"; // break; case 3: // gen_op_dmfc0_performance3(); rn = "Performance3"; // break; case 4: // gen_op_dmfc0_performance4(); rn = "Performance4"; // break; case 5: // gen_op_dmfc0_performance5(); rn = "Performance5"; // break; case 6: // gen_op_dmfc0_performance6(); rn = "Performance6"; // break; case 7: // gen_op_dmfc0_performance7(); rn = "Performance7"; // break; default: goto die; } break; case 26: rn = "ECC"; break; case 27: switch (sel) { /* ignored */ case 0 ... 3: rn = "CacheErr"; break; default: goto die; } break; case 28: switch (sel) { case 0: case 2: case 4: case 6: gen_op_mfc0_taglo(); rn = "TagLo"; break; case 1: case 3: case 5: case 7: gen_op_mfc0_datalo(); rn = "DataLo"; break; default: goto die; } break; case 29: switch (sel) { case 0: case 2: case 4: case 6: gen_op_mfc0_taghi(); rn = "TagHi"; break; case 1: case 3: case 5: case 7: gen_op_mfc0_datahi(); rn = "DataHi"; break; default: goto die; } break; case 30: switch (sel) { case 0: gen_op_dmfc0_errorepc(); rn = "ErrorEPC"; break; default: goto die; } break; case 31: switch (sel) { case 0: gen_op_mfc0_desave(); /* EJTAG support */ rn = "DESAVE"; break; default: goto die; } break; default: goto die; } #if defined MIPS_DEBUG_DISAS if (loglevel & CPU_LOG_TB_IN_ASM) { fprintf(logfile, "dmfc0 %s (reg %d sel %d)\n", rn, reg, sel); } #endif return; die: #if defined MIPS_DEBUG_DISAS if (loglevel & CPU_LOG_TB_IN_ASM) { fprintf(logfile, "dmfc0 %s (reg %d sel %d)\n", rn, reg, sel); } #endif generate_exception(ctx, EXCP_RI); } static void gen_dmtc0 (DisasContext *ctx, int reg, int sel) { const char *rn = "invalid"; switch (reg) { case 0: switch (sel) { case 0: gen_op_mtc0_index(); rn = "Index"; break; case 1: // gen_op_dmtc0_mvpcontrol(); /* MT ASE */ rn = "MVPControl"; // break; case 2: // gen_op_dmtc0_mvpconf0(); /* MT ASE */ rn = "MVPConf0"; // break; case 3: // gen_op_dmtc0_mvpconf1(); /* MT ASE */ rn = "MVPConf1"; // break; default: goto die; } break; case 1: switch (sel) { case 0: /* ignored */ rn = "Random"; break; case 1: // gen_op_dmtc0_vpecontrol(); /* MT ASE */ rn = "VPEControl"; // break; case 2: // gen_op_dmtc0_vpeconf0(); /* MT ASE */ rn = "VPEConf0"; // break; case 3: // gen_op_dmtc0_vpeconf1(); /* MT ASE */ rn = "VPEConf1"; // break; case 4: // gen_op_dmtc0_YQMask(); /* MT ASE */ rn = "YQMask"; // break; case 5: // gen_op_dmtc0_vpeschedule(); /* MT ASE */ rn = "VPESchedule"; // break; case 6: // gen_op_dmtc0_vpeschefback(); /* MT ASE */ rn = "VPEScheFBack"; // break; case 7: // gen_op_dmtc0_vpeopt(); /* MT ASE */ rn = "VPEOpt"; // break; default: goto die; } break; case 2: switch (sel) { case 0: gen_op_dmtc0_entrylo0(); rn = "EntryLo0"; break; case 1: // gen_op_dmtc0_tcstatus(); /* MT ASE */ rn = "TCStatus"; // break; case 2: // gen_op_dmtc0_tcbind(); /* MT ASE */ rn = "TCBind"; // break; case 3: // gen_op_dmtc0_tcrestart(); /* MT ASE */ rn = "TCRestart"; // break; case 4: // gen_op_dmtc0_tchalt(); /* MT ASE */ rn = "TCHalt"; // break; case 5: // gen_op_dmtc0_tccontext(); /* MT ASE */ rn = "TCContext"; // break; case 6: // gen_op_dmtc0_tcschedule(); /* MT ASE */ rn = "TCSchedule"; // break; case 7: // gen_op_dmtc0_tcschefback(); /* MT ASE */ rn = "TCScheFBack"; // break; default: goto die; } break; case 3: switch (sel) { case 0: gen_op_dmtc0_entrylo1(); rn = "EntryLo1"; break; default: goto die; } break; case 4: switch (sel) { case 0: gen_op_dmtc0_context(); rn = "Context"; break; case 1: // gen_op_dmtc0_contextconfig(); /* SmartMIPS ASE */ rn = "ContextConfig"; // break; default: goto die; } break; case 5: switch (sel) { case 0: gen_op_mtc0_pagemask(); rn = "PageMask"; break; case 1: gen_op_mtc0_pagegrain(); rn = "PageGrain"; break; default: goto die; } break; case 6: switch (sel) { case 0: gen_op_mtc0_wired(); rn = "Wired"; break; case 1: // gen_op_dmtc0_srsconf0(); /* shadow registers */ rn = "SRSConf0"; // break; case 2: // gen_op_dmtc0_srsconf1(); /* shadow registers */ rn = "SRSConf1"; // break; case 3: // gen_op_dmtc0_srsconf2(); /* shadow registers */ rn = "SRSConf2"; // break; case 4: // gen_op_dmtc0_srsconf3(); /* shadow registers */ rn = "SRSConf3"; // break; case 5: // gen_op_dmtc0_srsconf4(); /* shadow registers */ rn = "SRSConf4"; // break; default: goto die; } break; case 7: switch (sel) { case 0: gen_op_mtc0_hwrena(); rn = "HWREna"; break; default: goto die; } break; case 8: /* ignored */ rn = "BadVaddr"; break; case 9: switch (sel) { case 0: gen_op_mtc0_count(); 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_op_mtc0_entryhi(); rn = "EntryHi"; break; default: goto die; } break; case 11: switch (sel) { case 0: gen_op_mtc0_compare(); 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: gen_op_mtc0_status(); rn = "Status"; break; case 1: gen_op_mtc0_intctl(); rn = "IntCtl"; break; case 2: gen_op_mtc0_srsctl(); rn = "SRSCtl"; break; case 3: gen_op_mtc0_srsmap(); /* shadow registers */ rn = "SRSMap"; break; default: goto die; } /* Stop translation as we may have switched the execution mode */ ctx->bstate = BS_STOP; break; case 13: switch (sel) { case 0: gen_op_mtc0_cause(); rn = "Cause"; break; default: goto die; } /* Stop translation as we may have switched the execution mode */ ctx->bstate = BS_STOP; break; case 14: switch (sel) { case 0: gen_op_dmtc0_epc(); rn = "EPC"; break; default: goto die; } break; case 15: switch (sel) { case 0: /* ignored */ rn = "PRid"; break; case 1: gen_op_dmtc0_ebase(); rn = "EBase"; break; default: goto die; } break; case 16: switch (sel) { case 0: gen_op_mtc0_config0(); rn = "Config"; break; case 1: /* ignored */ rn = "Config1"; break; case 2: gen_op_mtc0_config2(); rn = "Config2"; break; case 3: /* ignored */ rn = "Config3"; break; /* 6,7 are implementation dependent */ default: rn = "Invalid config selector"; goto die; } /* Stop translation as we may have switched the execution mode */ ctx->bstate = BS_STOP; break; case 17: switch (sel) { case 0: /* ignored */ rn = "LLAddr"; break; default: goto die; } break; case 18: switch (sel) { case 0: gen_op_dmtc0_watchlo0(); rn = "WatchLo"; break; case 1: // gen_op_dmtc0_watchlo1(); rn = "WatchLo1"; // break; case 2: // gen_op_dmtc0_watchlo2(); rn = "WatchLo2"; // break; case 3: // gen_op_dmtc0_watchlo3(); rn = "WatchLo3"; // break; case 4: // gen_op_dmtc0_watchlo4(); rn = "WatchLo4"; // break; case 5: // gen_op_dmtc0_watchlo5(); rn = "WatchLo5"; // break; case 6: // gen_op_dmtc0_watchlo6(); rn = "WatchLo6"; // break; case 7: // gen_op_dmtc0_watchlo7(); rn = "WatchLo7"; // break; default: goto die; } break; case 19: switch (sel) { case 0: gen_op_mtc0_watchhi0(); rn = "WatchHi"; break; case 1: // gen_op_dmtc0_watchhi1(); rn = "WatchHi1"; // break; case 2: // gen_op_dmtc0_watchhi2(); rn = "WatchHi2"; // break; case 3: // gen_op_dmtc0_watchhi3(); rn = "WatchHi3"; // break; case 4: // gen_op_dmtc0_watchhi4(); rn = "WatchHi4"; // break; case 5: // gen_op_dmtc0_watchhi5(); rn = "WatchHi5"; // break; case 6: // gen_op_dmtc0_watchhi6(); rn = "WatchHi6"; // break; case 7: // gen_op_dmtc0_watchhi7(); rn = "WatchHi7"; // break; default: goto die; } break; case 20: switch (sel) { case 0: /* 64 bit MMU only */ gen_op_dmtc0_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_op_mtc0_framemask(); rn = "Framemask"; break; default: goto die; } break; case 22: /* ignored */ rn = "Diagnostic"; /* implementation dependent */ break; case 23: switch (sel) { case 0: gen_op_mtc0_debug(); /* EJTAG support */ rn = "Debug"; break; case 1: // gen_op_dmtc0_tracecontrol(); /* PDtrace support */ rn = "TraceControl"; // break; case 2: // gen_op_dmtc0_tracecontrol2(); /* PDtrace support */ rn = "TraceControl2"; // break; case 3: // gen_op_dmtc0_usertracedata(); /* PDtrace support */ rn = "UserTraceData"; // break; case 4: // gen_op_dmtc0_debug(); /* PDtrace support */ rn = "TraceBPC"; // break; default: goto die; } /* Stop translation as we may have switched the execution mode */ ctx->bstate = BS_STOP; break; case 24: switch (sel) { case 0: gen_op_dmtc0_depc(); /* EJTAG support */ rn = "DEPC"; break; default: goto die; } break; case 25: switch (sel) { case 0: gen_op_mtc0_performance0(); rn = "Performance0"; break; case 1: // gen_op_dmtc0_performance1(); rn = "Performance1"; // break; case 2: // gen_op_dmtc0_performance2(); rn = "Performance2"; // break; case 3: // gen_op_dmtc0_performance3(); rn = "Performance3"; // break; case 4: // gen_op_dmtc0_performance4(); rn = "Performance4"; // break; case 5: // gen_op_dmtc0_performance5(); rn = "Performance5"; // break; case 6: // gen_op_dmtc0_performance6(); rn = "Performance6"; // break; case 7: // gen_op_dmtc0_performance7(); 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_op_mtc0_taglo(); rn = "TagLo"; break; case 1: case 3: case 5: case 7: gen_op_mtc0_datalo(); rn = "DataLo"; break; default: goto die; } break; case 29: switch (sel) { case 0: case 2: case 4: case 6: gen_op_mtc0_taghi(); rn = "TagHi"; break; case 1: case 3: case 5: case 7: gen_op_mtc0_datahi(); rn = "DataHi"; break; default: rn = "invalid sel"; goto die; } break; case 30: switch (sel) { case 0: gen_op_dmtc0_errorepc(); rn = "ErrorEPC"; break; default: goto die; } break; case 31: switch (sel) { case 0: gen_op_mtc0_desave(); /* EJTAG support */ rn = "DESAVE"; break; default: goto die; } /* Stop translation as we may have switched the execution mode */ ctx->bstate = BS_STOP; break; default: goto die; } #if defined MIPS_DEBUG_DISAS if (loglevel & CPU_LOG_TB_IN_ASM) { fprintf(logfile, "dmtc0 %s (reg %d sel %d)\n", rn, reg, sel); } #endif return; die: #if defined MIPS_DEBUG_DISAS if (loglevel & CPU_LOG_TB_IN_ASM) { fprintf(logfile, "dmtc0 %s (reg %d sel %d)\n", rn, reg, sel); } #endif generate_exception(ctx, EXCP_RI); } static void gen_cp0 (DisasContext *ctx, uint32_t opc, int rt, int rd) { const char *opn = "unk"; if ((!ctx->CP0_Status & (1 << CP0St_CU0) && (ctx->hflags & MIPS_HFLAG_UM)) && !(ctx->hflags & MIPS_HFLAG_ERL) && !(ctx->hflags & MIPS_HFLAG_EXL)) { if (loglevel & CPU_LOG_TB_IN_ASM) { fprintf(logfile, "CP0 is not usable\n"); } generate_exception (ctx, EXCP_CpU); return; } switch (opc) { case OPC_MFC0: if (rt == 0) { /* Treat as NOP */ return; } gen_mfc0(ctx, rd, ctx->opcode & 0x7); gen_op_store_T0_gpr(rt); opn = "mfc0"; break; case OPC_MTC0: /* If we get an exception, we want to restart at next instruction */ /* XXX: breaks for mtc in delay slot */ ctx->pc += 4; save_cpu_state(ctx, 1); ctx->pc -= 4; GEN_LOAD_REG_TN(T0, rt); gen_mtc0(ctx, rd, ctx->opcode & 0x7); opn = "mtc0"; break; case OPC_DMFC0: if (rt == 0) { /* Treat as NOP */ return; } gen_dmfc0(ctx, rd, ctx->opcode & 0x7); gen_op_store_T0_gpr(rt); opn = "dmfc0"; break; case OPC_DMTC0: /* If we get an exception, we want to restart at next instruction */ /* XXX: breaks for dmtc in delay slot */ ctx->pc += 4; save_cpu_state(ctx, 1); ctx->pc -= 4; GEN_LOAD_REG_TN(T0, rt); gen_dmtc0(ctx, rd, ctx->opcode & 0x7); opn = "dmtc0"; break; #if defined(MIPS_USES_R4K_TLB) case OPC_TLBWI: gen_op_tlbwi(); opn = "tlbwi"; break; case OPC_TLBWR: gen_op_tlbwr(); opn = "tlbwr"; break; case OPC_TLBP: gen_op_tlbp(); opn = "tlbp"; break; case OPC_TLBR: gen_op_tlbr(); opn = "tlbr"; break; #endif case OPC_ERET: opn = "eret"; save_cpu_state(ctx, 0); gen_op_eret(); ctx->bstate = BS_EXCP; break; case OPC_DERET: opn = "deret"; if (!(ctx->hflags & MIPS_HFLAG_DM)) { generate_exception(ctx, EXCP_RI); } else { save_cpu_state(ctx, 0); gen_op_deret(); ctx->bstate = BS_EXCP; } break; case OPC_WAIT: opn = "wait"; /* If we get an exception, we want to restart at next instruction */ ctx->pc += 4; save_cpu_state(ctx, 1); ctx->pc -= 4; gen_op_wait(); ctx->bstate = BS_EXCP; break; default: if (loglevel & CPU_LOG_TB_IN_ASM) { fprintf(logfile, "Invalid CP0 opcode: %08x %03x %03x %03x\n", ctx->opcode, ctx->opcode >> 26, ctx->opcode & 0x3F, ((ctx->opcode >> 16) & 0x1F)); } generate_exception(ctx, EXCP_RI); return; } MIPS_DEBUG("%s %s %d", opn, regnames[rt], rd); } #ifdef MIPS_USES_FPU /* CP1 Branches (before delay slot) */ static void gen_compute_branch1 (DisasContext *ctx, uint32_t op, int32_t offset) { target_ulong btarget; btarget = ctx->pc + 4 + offset; switch (op) { case OPC_BC1F: gen_op_bc1f(); MIPS_DEBUG("bc1f " TLSZ, btarget); goto not_likely; case OPC_BC1FL: gen_op_bc1f(); MIPS_DEBUG("bc1fl " TLSZ, btarget); goto likely; case OPC_BC1T: gen_op_bc1t(); MIPS_DEBUG("bc1t " TLSZ, btarget); not_likely: ctx->hflags |= MIPS_HFLAG_BC; break; case OPC_BC1TL: gen_op_bc1t(); MIPS_DEBUG("bc1tl " TLSZ, btarget); likely: ctx->hflags |= MIPS_HFLAG_BL; break; default: MIPS_INVAL("cp1 branch/jump"); generate_exception_err (ctx, EXCP_RI, 1); return; } gen_op_set_bcond(); MIPS_DEBUG("enter ds: cond %02x target " TLSZ, ctx->hflags, btarget); ctx->btarget = btarget; return; } /* Coprocessor 1 (FPU) */ static void gen_cp1 (DisasContext *ctx, uint32_t opc, int rt, int fs) { const char *opn = "unk"; switch (opc) { case OPC_MFC1: GEN_LOAD_FREG_FTN(WT0, fs); gen_op_mfc1(); GEN_STORE_TN_REG(rt, T0); opn = "mfc1"; break; case OPC_MTC1: GEN_LOAD_REG_TN(T0, rt); gen_op_mtc1(); GEN_STORE_FTN_FREG(fs, WT0); opn = "mtc1"; break; case OPC_CFC1: if (fs != 0 && fs != 31) { MIPS_INVAL("cfc1 freg"); generate_exception_err (ctx, EXCP_RI, 1); return; } GEN_LOAD_IMM_TN(T1, fs); gen_op_cfc1(); GEN_STORE_TN_REG(rt, T0); opn = "cfc1"; break; case OPC_CTC1: if (fs != 0 && fs != 31) { MIPS_INVAL("ctc1 freg"); generate_exception_err (ctx, EXCP_RI, 1); return; } GEN_LOAD_IMM_TN(T1, fs); GEN_LOAD_REG_TN(T0, rt); gen_op_ctc1(); opn = "ctc1"; break; case OPC_DMFC1: case OPC_DMTC1: /* Not implemented, fallthrough. */ default: if (loglevel & CPU_LOG_TB_IN_ASM) { fprintf(logfile, "Invalid CP1 opcode: %08x %03x %03x %03x\n", ctx->opcode, ctx->opcode >> 26, ctx->opcode & 0x3F, ((ctx->opcode >> 16) & 0x1F)); } generate_exception_err (ctx, EXCP_RI, 1); return; } MIPS_DEBUG("%s %s %s", opn, regnames[rt], fregnames[fs]); } /* 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. * * Multiple float registers can be checked by calling * CHECK_FR(ctx, freg1 | freg2 | ... | fregN); */ #define CHECK_FR(ctx, freg) do { \ if (!((ctx)->CP0_Status & (1<opcode & 0x3f; switch (ctx->opcode & FOP(0x3f, 0x1f)) { case FOP(0, 17): CHECK_FR(ctx, fs | ft | fd); GEN_LOAD_FREG_FTN(DT0, fs); GEN_LOAD_FREG_FTN(DT1, ft); gen_op_float_add_d(); GEN_STORE_FTN_FREG(fd, DT2); opn = "add.d"; binary = 1; break; case FOP(1, 17): CHECK_FR(ctx, fs | ft | fd); GEN_LOAD_FREG_FTN(DT0, fs); GEN_LOAD_FREG_FTN(DT1, ft); gen_op_float_sub_d(); GEN_STORE_FTN_FREG(fd, DT2); opn = "sub.d"; binary = 1; break; case FOP(2, 17): CHECK_FR(ctx, fs | ft | fd); GEN_LOAD_FREG_FTN(DT0, fs); GEN_LOAD_FREG_FTN(DT1, ft); gen_op_float_mul_d(); GEN_STORE_FTN_FREG(fd, DT2); opn = "mul.d"; binary = 1; break; case FOP(3, 17): CHECK_FR(ctx, fs | ft | fd); GEN_LOAD_FREG_FTN(DT0, fs); GEN_LOAD_FREG_FTN(DT1, ft); gen_op_float_div_d(); GEN_STORE_FTN_FREG(fd, DT2); opn = "div.d"; binary = 1; break; case FOP(4, 17): CHECK_FR(ctx, fs | fd); GEN_LOAD_FREG_FTN(DT0, fs); gen_op_float_sqrt_d(); GEN_STORE_FTN_FREG(fd, DT2); opn = "sqrt.d"; break; case FOP(5, 17): CHECK_FR(ctx, fs | fd); GEN_LOAD_FREG_FTN(DT0, fs); gen_op_float_abs_d(); GEN_STORE_FTN_FREG(fd, DT2); opn = "abs.d"; break; case FOP(6, 17): CHECK_FR(ctx, fs | fd); GEN_LOAD_FREG_FTN(DT0, fs); gen_op_float_mov_d(); GEN_STORE_FTN_FREG(fd, DT2); opn = "mov.d"; break; case FOP(7, 17): CHECK_FR(ctx, fs | fd); GEN_LOAD_FREG_FTN(DT0, fs); gen_op_float_chs_d(); GEN_STORE_FTN_FREG(fd, DT2); opn = "neg.d"; break; /* 8 - round.l */ /* 9 - trunc.l */ /* 10 - ceil.l */ /* 11 - floor.l */ case FOP(12, 17): CHECK_FR(ctx, fs | fd); GEN_LOAD_FREG_FTN(DT0, fs); gen_op_float_roundw_d(); GEN_STORE_FTN_FREG(fd, WT2); opn = "round.w.d"; break; case FOP(13, 17): CHECK_FR(ctx, fs | fd); GEN_LOAD_FREG_FTN(DT0, fs); gen_op_float_truncw_d(); GEN_STORE_FTN_FREG(fd, WT2); opn = "trunc.w.d"; break; case FOP(14, 17): CHECK_FR(ctx, fs | fd); GEN_LOAD_FREG_FTN(DT0, fs); gen_op_float_ceilw_d(); GEN_STORE_FTN_FREG(fd, WT2); opn = "ceil.w.d"; break; case FOP(15, 17): CHECK_FR(ctx, fs | fd); GEN_LOAD_FREG_FTN(DT0, fs); gen_op_float_floorw_d(); GEN_STORE_FTN_FREG(fd, WT2); opn = "floor.w.d"; break; case FOP(33, 16): /* cvt.d.s */ CHECK_FR(ctx, fs | fd); GEN_LOAD_FREG_FTN(WT0, fs); gen_op_float_cvtd_s(); GEN_STORE_FTN_FREG(fd, DT2); opn = "cvt.d.s"; break; case FOP(33, 20): /* cvt.d.w */ CHECK_FR(ctx, fs | fd); GEN_LOAD_FREG_FTN(WT0, fs); gen_op_float_cvtd_w(); GEN_STORE_FTN_FREG(fd, DT2); opn = "cvt.d.w"; break; case FOP(48, 17): case FOP(49, 17): case FOP(50, 17): case FOP(51, 17): case FOP(52, 17): case FOP(53, 17): case FOP(54, 17): case FOP(55, 17): case FOP(56, 17): case FOP(57, 17): case FOP(58, 17): case FOP(59, 17): case FOP(60, 17): case FOP(61, 17): case FOP(62, 17): case FOP(63, 17): CHECK_FR(ctx, fs | ft); GEN_LOAD_FREG_FTN(DT0, fs); GEN_LOAD_FREG_FTN(DT1, ft); gen_cmp_d(func-48); opn = condnames[func-48]; break; case FOP(0, 16): CHECK_FR(ctx, fs | ft | fd); GEN_LOAD_FREG_FTN(WT0, fs); GEN_LOAD_FREG_FTN(WT1, ft); gen_op_float_add_s(); GEN_STORE_FTN_FREG(fd, WT2); opn = "add.s"; binary = 1; break; case FOP(1, 16): CHECK_FR(ctx, fs | ft | fd); GEN_LOAD_FREG_FTN(WT0, fs); GEN_LOAD_FREG_FTN(WT1, ft); gen_op_float_sub_s(); GEN_STORE_FTN_FREG(fd, WT2); opn = "sub.s"; binary = 1; break; case FOP(2, 16): CHECK_FR(ctx, fs | ft | fd); GEN_LOAD_FREG_FTN(WT0, fs); GEN_LOAD_FREG_FTN(WT1, ft); gen_op_float_mul_s(); GEN_STORE_FTN_FREG(fd, WT2); opn = "mul.s"; binary = 1; break; case FOP(3, 16): CHECK_FR(ctx, fs | ft | fd); GEN_LOAD_FREG_FTN(WT0, fs); GEN_LOAD_FREG_FTN(WT1, ft); gen_op_float_div_s(); GEN_STORE_FTN_FREG(fd, WT2); opn = "div.s"; binary = 1; break; case FOP(4, 16): CHECK_FR(ctx, fs | fd); GEN_LOAD_FREG_FTN(WT0, fs); gen_op_float_sqrt_s(); GEN_STORE_FTN_FREG(fd, WT2); opn = "sqrt.s"; break; case FOP(5, 16): CHECK_FR(ctx, fs | fd); GEN_LOAD_FREG_FTN(WT0, fs); gen_op_float_abs_s(); GEN_STORE_FTN_FREG(fd, WT2); opn = "abs.s"; break; case FOP(6, 16): CHECK_FR(ctx, fs | fd); GEN_LOAD_FREG_FTN(WT0, fs); gen_op_float_mov_s(); GEN_STORE_FTN_FREG(fd, WT2); opn = "mov.s"; break; case FOP(7, 16): CHECK_FR(ctx, fs | fd); GEN_LOAD_FREG_FTN(WT0, fs); gen_op_float_chs_s(); GEN_STORE_FTN_FREG(fd, WT2); opn = "neg.s"; break; case FOP(12, 16): CHECK_FR(ctx, fs | fd); GEN_LOAD_FREG_FTN(WT0, fs); gen_op_float_roundw_s(); GEN_STORE_FTN_FREG(fd, WT2); opn = "round.w.s"; break; case FOP(13, 16): CHECK_FR(ctx, fs | fd); GEN_LOAD_FREG_FTN(WT0, fs); gen_op_float_truncw_s(); GEN_STORE_FTN_FREG(fd, WT2); opn = "trunc.w.s"; break; case FOP(32, 17): /* cvt.s.d */ CHECK_FR(ctx, fs | fd); GEN_LOAD_FREG_FTN(DT0, fs); gen_op_float_cvts_d(); GEN_STORE_FTN_FREG(fd, WT2); opn = "cvt.s.d"; break; case FOP(32, 20): /* cvt.s.w */ CHECK_FR(ctx, fs | fd); GEN_LOAD_FREG_FTN(WT0, fs); gen_op_float_cvts_w(); GEN_STORE_FTN_FREG(fd, WT2); opn = "cvt.s.w"; break; case FOP(36, 16): /* cvt.w.s */ CHECK_FR(ctx, fs | fd); GEN_LOAD_FREG_FTN(WT0, fs); gen_op_float_cvtw_s(); GEN_STORE_FTN_FREG(fd, WT2); opn = "cvt.w.s"; break; case FOP(36, 17): /* cvt.w.d */ CHECK_FR(ctx, fs | fd); GEN_LOAD_FREG_FTN(DT0, fs); gen_op_float_cvtw_d(); GEN_STORE_FTN_FREG(fd, WT2); opn = "cvt.w.d"; break; case FOP(48, 16): case FOP(49, 16): case FOP(50, 16): case FOP(51, 16): case FOP(52, 16): case FOP(53, 16): case FOP(54, 16): case FOP(55, 16): case FOP(56, 16): case FOP(57, 16): case FOP(58, 16): case FOP(59, 16): case FOP(60, 16): case FOP(61, 16): case FOP(62, 16): case FOP(63, 16): CHECK_FR(ctx, fs | ft); GEN_LOAD_FREG_FTN(WT0, fs); GEN_LOAD_FREG_FTN(WT1, ft); gen_cmp_s(func-48); opn = condnames[func-48]; break; default: if (loglevel & CPU_LOG_TB_IN_ASM) { fprintf(logfile, "Invalid FP arith function: %08x %03x %03x %03x\n", ctx->opcode, ctx->opcode >> 26, ctx->opcode & 0x3F, ((ctx->opcode >> 16) & 0x1F)); } generate_exception_err (ctx, EXCP_RI, 1); return; } if (binary) MIPS_DEBUG("%s %s, %s, %s", opn, fregnames[fd], fregnames[fs], fregnames[ft]); else MIPS_DEBUG("%s %s,%s", opn, fregnames[fd], fregnames[fs]); } static void gen_movci (DisasContext *ctx, int rd, int rs, int cc, int tf) { uint32_t ccbit; if (cc) ccbit = 1 << (24 + cc); else ccbit = 1 << 23; if (!tf) gen_op_movf(ccbit, rd, rs); else gen_op_movt(ccbit, rd, rs); } #endif /* MIPS_USES_FPU */ /* ISA extensions (ASEs) */ /* MIPS16 extension to MIPS32 */ /* SmartMIPS extension to MIPS32 */ #ifdef MIPS_HAS_MIPS64 /* Coprocessor 3 (FPU) */ /* MDMX extension to MIPS64 */ /* MIPS-3D extension to MIPS64 */ #endif static void gen_blikely(DisasContext *ctx) { int l1; l1 = gen_new_label(); gen_op_jnz_T2(l1); gen_op_save_state(ctx->hflags & ~MIPS_HFLAG_BMASK); gen_goto_tb(ctx, 1, ctx->pc + 4); gen_set_label(l1); } static void decode_opc (DisasContext *ctx) { 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) { generate_exception(ctx, EXCP_AdEL); return; } if ((ctx->hflags & MIPS_HFLAG_BMASK) == MIPS_HFLAG_BL) { /* Handle blikely not taken case */ MIPS_DEBUG("blikely condition (" TLSZ ")", ctx->pc + 4); gen_blikely(ctx); } 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: /* Arithmetic with immediate */ case OPC_SRL ... OPC_SRA: gen_arith_imm(ctx, op1, rd, rt, sa); break; case OPC_SLLV: /* Arithmetic */ case OPC_SRLV ... OPC_SRAV: case OPC_MOVZ ... OPC_MOVN: case OPC_ADD ... OPC_NOR: case OPC_SLT ... OPC_SLTU: gen_arith(ctx, op1, rd, rs, rt); break; case OPC_MULT ... OPC_DIVU: gen_muldiv(ctx, op1, rs, rt); break; case OPC_JR ... OPC_JALR: gen_compute_branch(ctx, op1, rs, rd, sa); return; 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 */ gen_op_pmon(sa); break; case OPC_SYSCALL: generate_exception(ctx, EXCP_SYSCALL); ctx->bstate = BS_EXCP; break; case OPC_BREAK: generate_exception(ctx, EXCP_BREAK); break; case OPC_SPIM: /* SPIM ? */ /* Implemented as RI exception for now. */ MIPS_INVAL("spim (unofficial)"); generate_exception(ctx, EXCP_RI); break; case OPC_SYNC: /* Treat as a noop. */ break; #ifdef MIPS_USES_FPU case OPC_MOVCI: gen_op_cp1_enabled(); gen_movci(ctx, rd, rs, (ctx->opcode >> 18) & 0x7, (ctx->opcode >> 16) & 1); break; #endif #ifdef MIPS_HAS_MIPS64 /* MIPS64 specific opcodes */ case OPC_DSLL: case OPC_DSRL ... OPC_DSRA: case OPC_DSLL32: case OPC_DSRL32 ... OPC_DSRA32: gen_arith_imm(ctx, op1, rd, rt, sa); break; case OPC_DSLLV: case OPC_DSRLV ... OPC_DSRAV: case OPC_DADD ... OPC_DSUBU: gen_arith(ctx, op1, rd, rs, rt); break; case OPC_DMULT ... OPC_DDIVU: 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: gen_muldiv(ctx, op1, rs, rt); break; case OPC_MUL: gen_arith(ctx, op1, rd, rs, rt); break; case OPC_CLZ ... OPC_CLO: gen_cl(ctx, op1, rd, rs); break; case OPC_SDBBP: /* XXX: not clear which exception should be raised * when in debug mode... */ if (!(ctx->hflags & MIPS_HFLAG_DM)) { generate_exception(ctx, EXCP_DBp); } else { generate_exception(ctx, EXCP_DBp); } /* Treat as a noop */ break; #ifdef MIPS_HAS_MIPS64 case OPC_DCLZ ... OPC_DCLO: 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: gen_bitops(ctx, op1, rt, rs, sa, rd); break; case OPC_BSHFL: op2 = MASK_BSHFL(ctx->opcode); switch (op2) { case OPC_WSBH: GEN_LOAD_REG_TN(T1, rt); gen_op_wsbh(); break; case OPC_SEB: GEN_LOAD_REG_TN(T1, rt); gen_op_seb(); break; case OPC_SEH: GEN_LOAD_REG_TN(T1, rt); gen_op_seh(); break; default: /* Invalid */ MIPS_INVAL("bshfl"); generate_exception(ctx, EXCP_RI); break; } GEN_STORE_TN_REG(rd, T0); break; case OPC_RDHWR: switch (rd) { case 0: gen_op_rdhwr_cpunum(); break; case 1: gen_op_rdhwr_synci_step(); break; case 2: gen_op_rdhwr_cc(); break; case 3: gen_op_rdhwr_ccres(); break; default: /* Invalid */ MIPS_INVAL("rdhwr"); generate_exception(ctx, EXCP_RI); break; } GEN_STORE_TN_REG(rt, T0); break; #ifdef MIPS_HAS_MIPS64 case OPC_DEXTM ... OPC_DEXT: case OPC_DINSM ... OPC_DINS: gen_bitops(ctx, op1, rt, rs, sa, rd); break; case OPC_DBSHFL: op2 = MASK_DBSHFL(ctx->opcode); switch (op2) { case OPC_DSBH: GEN_LOAD_REG_TN(T1, rt); gen_op_dsbh(); break; case OPC_DSHD: GEN_LOAD_REG_TN(T1, rt); gen_op_dshd(); break; default: /* Invalid */ MIPS_INVAL("dbshfl"); generate_exception(ctx, EXCP_RI); break; } GEN_STORE_TN_REG(rd, T0); #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, rs, -1, imm << 2); return; case OPC_TGEI ... OPC_TEQI: /* REGIMM traps */ case OPC_TNEI: gen_trap(ctx, op1, rs, -1, imm); break; case OPC_SYNCI: /* treat as noop */ break; default: /* Invalid */ MIPS_INVAL("REGIMM"); generate_exception(ctx, EXCP_RI); break; } break; case OPC_CP0: op1 = MASK_CP0(ctx->opcode); switch (op1) { case OPC_MFC0: case OPC_MTC0: #ifdef MIPS_HAS_MIPS64 case OPC_DMFC0: case OPC_DMTC0: #endif gen_cp0(ctx, op1, rt, rd); break; case OPC_C0_FIRST ... OPC_C0_LAST: gen_cp0(ctx, MASK_C0(ctx->opcode), rt, rd); break; case OPC_MFMC0: op2 = MASK_MFMC0(ctx->opcode); switch (op2) { case OPC_DI: gen_op_di(); /* Stop translation as we may have switched the execution mode */ ctx->bstate = BS_STOP; break; case OPC_EI: gen_op_ei(); /* 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; } GEN_STORE_TN_REG(rt, T0); break; /* Shadow registers (not implemented). */ case OPC_RDPGPR: case OPC_WRPGPR: default: generate_exception(ctx, EXCP_RI); break; } break; case OPC_ADDI ... OPC_LUI: /* Arithmetic with immediate opcode */ gen_arith_imm(ctx, op, rt, rs, imm); break; case OPC_J ... OPC_JAL: /* Jump */ offset = (int32_t)(ctx->opcode & 0x3FFFFFF) << 2; gen_compute_branch(ctx, op, rs, rt, offset); return; case OPC_BEQ ... OPC_BGTZ: /* Branch */ case OPC_BEQL ... OPC_BGTZL: gen_compute_branch(ctx, op, rs, rt, imm << 2); return; case OPC_LB ... OPC_LWR: /* Load and stores */ case OPC_SB ... OPC_SW: case OPC_SWR: case OPC_LL: case OPC_SC: gen_ldst(ctx, op, rt, rs, imm); break; case OPC_CACHE: /* Treat as a noop */ break; case OPC_PREF: /* Treat as a noop */ break; /* Floating point. */ case OPC_LWC1: case OPC_LDC1: case OPC_SWC1: case OPC_SDC1: #if defined(MIPS_USES_FPU) save_cpu_state(ctx, 1); gen_op_cp1_enabled(); gen_flt_ldst(ctx, op, rt, rs, imm); #else generate_exception_err(ctx, EXCP_CpU, 1); #endif break; case OPC_CP1: #if defined(MIPS_USES_FPU) save_cpu_state(ctx, 1); gen_op_cp1_enabled(); op1 = MASK_CP1(ctx->opcode); switch (op1) { case OPC_MFC1: case OPC_CFC1: case OPC_MTC1: case OPC_CTC1: #ifdef MIPS_HAS_MIPS64 case OPC_DMFC1: case OPC_DMTC1: #endif gen_cp1(ctx, op1, rt, rd); break; case OPC_BC1: gen_compute_branch1(ctx, MASK_CP1_BCOND(ctx->opcode), imm << 2); return; case OPC_S_FMT: case OPC_D_FMT: case OPC_W_FMT: case OPC_L_FMT: gen_farith(ctx, MASK_CP1_FUNC(ctx->opcode), rt, rd, sa); break; default: generate_exception_err(ctx, EXCP_RI, 1); break; } #else generate_exception_err(ctx, EXCP_CpU, 1); #endif 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; #ifdef MIPS_USES_FPU case OPC_CP3: gen_op_cp1_enabled(); op1 = MASK_CP3(ctx->opcode); switch (op1) { /* Not implemented */ default: generate_exception_err(ctx, EXCP_RI, 1); break; } break; #endif #ifdef MIPS_HAS_MIPS64 /* MIPS64 opcodes */ case OPC_LWU: case OPC_LDL ... OPC_LDR: case OPC_SDL ... OPC_SDR: case OPC_LLD: case OPC_LD: case OPC_SCD: case OPC_SD: gen_ldst(ctx, op, rt, rs, imm); break; case OPC_DADDI ... OPC_DADDIU: gen_arith_imm(ctx, op, rt, rs, imm); break; #endif #ifdef MIPS_HAS_MIPS16 case OPC_JALX: /* MIPS16: Not implemented. */ #endif #ifdef MIPS_HAS_MDMX case OPC_MDMX: /* MDMX: Not implemented. */ #endif default: /* Invalid */ MIPS_INVAL(""); generate_exception(ctx, EXCP_RI); break; } if (ctx->hflags & MIPS_HFLAG_BMASK) { int hflags = ctx->hflags; /* Branches completion */ ctx->hflags &= ~MIPS_HFLAG_BMASK; ctx->bstate = BS_BRANCH; save_cpu_state(ctx, 0); switch (hflags & MIPS_HFLAG_BMASK) { case MIPS_HFLAG_B: /* unconditional branch */ MIPS_DEBUG("unconditional branch"); 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; l1 = gen_new_label(); gen_op_jnz_T2(l1); gen_goto_tb(ctx, 1, ctx->pc + 4); 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"); gen_op_breg(); break; default: MIPS_DEBUG("unknown branch"); break; } } } int gen_intermediate_code_internal (CPUState *env, TranslationBlock *tb, int search_pc) { DisasContext ctx, *ctxp = &ctx; target_ulong pc_start; uint16_t *gen_opc_end; int j, lj = -1; if (search_pc && loglevel) fprintf (logfile, "search pc %d\n", search_pc); pc_start = tb->pc; gen_opc_ptr = gen_opc_buf; gen_opc_end = gen_opc_buf + OPC_MAX_SIZE; gen_opparam_ptr = gen_opparam_buf; nb_gen_labels = 0; ctx.pc = pc_start; ctx.saved_pc = -1; ctx.tb = tb; ctx.bstate = BS_NONE; /* Restore delay slot state from the tb context. */ ctx.hflags = tb->flags; ctx.saved_hflags = ctx.hflags; if (ctx.hflags & MIPS_HFLAG_BR) { gen_op_restore_breg_target(); } else if (ctx.hflags & MIPS_HFLAG_B) { ctx.btarget = env->btarget; } else if (ctx.hflags & MIPS_HFLAG_BMASK) { /* If we are in the delay slot of a conditional branch, * restore the branch condition from env->bcond to T2 */ ctx.btarget = env->btarget; gen_op_restore_bcond(); } #if defined(CONFIG_USER_ONLY) ctx.mem_idx = 0; #else ctx.mem_idx = !((ctx.hflags & MIPS_HFLAG_MODE) == MIPS_HFLAG_UM); #endif ctx.CP0_Status = env->CP0_Status; #ifdef DEBUG_DISAS if (loglevel & CPU_LOG_TB_CPU) { fprintf(logfile, "------------------------------------------------\n"); /* FIXME: This may print out stale hflags from env... */ cpu_dump_state(env, logfile, fprintf, 0); } #endif #if defined MIPS_DEBUG_DISAS if (loglevel & CPU_LOG_TB_IN_ASM) fprintf(logfile, "\ntb %p super %d cond %04x\n", tb, ctx.mem_idx, ctx.hflags); #endif while (ctx.bstate == BS_NONE && gen_opc_ptr < gen_opc_end) { if (env->nb_breakpoints > 0) { for(j = 0; j < env->nb_breakpoints; j++) { if (env->breakpoints[j] == ctx.pc) { save_cpu_state(ctxp, 1); ctx.bstate = BS_BRANCH; gen_op_debug(); 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; } ctx.opcode = ldl_code(ctx.pc); decode_opc(&ctx); ctx.pc += 4; if (env->singlestep_enabled) break; if ((ctx.pc & (TARGET_PAGE_SIZE - 1)) == 0) break; #if defined (MIPS_SINGLE_STEP) break; #endif } if (env->singlestep_enabled) { save_cpu_state(ctxp, ctx.bstate == BS_NONE); gen_op_debug(); goto done_generating; } else if (ctx.bstate != BS_BRANCH && ctx.bstate != BS_EXCP) { save_cpu_state(ctxp, 0); gen_goto_tb(&ctx, 0, ctx.pc); } gen_op_reset_T0(); /* Generate the return instruction */ gen_op_exit_tb(); done_generating: *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; tb->size = 0; } else { tb->size = ctx.pc - pc_start; } #ifdef DEBUG_DISAS #if defined MIPS_DEBUG_DISAS if (loglevel & CPU_LOG_TB_IN_ASM) fprintf(logfile, "\n"); #endif if (loglevel & CPU_LOG_TB_IN_ASM) { fprintf(logfile, "IN: %s\n", lookup_symbol(pc_start)); target_disas(logfile, pc_start, ctx.pc - pc_start, 0); fprintf(logfile, "\n"); } if (loglevel & CPU_LOG_TB_OP) { fprintf(logfile, "OP:\n"); dump_ops(gen_opc_buf, gen_opparam_buf); fprintf(logfile, "\n"); } if (loglevel & CPU_LOG_TB_CPU) { fprintf(logfile, "---------------- %d %08x\n", ctx.bstate, ctx.hflags); } #endif return 0; } int gen_intermediate_code (CPUState *env, struct TranslationBlock *tb) { return gen_intermediate_code_internal(env, tb, 0); } int gen_intermediate_code_pc (CPUState *env, struct TranslationBlock *tb) { return gen_intermediate_code_internal(env, tb, 1); } #ifdef MIPS_USES_FPU void fpu_dump_state(CPUState *env, FILE *f, int (*fpu_fprintf)(FILE *f, const char *fmt, ...), int flags) { int i; # define printfpr(fp) do { \ fpu_fprintf(f, "w:%08x d:%08lx%08lx fd:%g fs:%g\n", \ (fp)->w[FP_ENDIAN_IDX], (fp)->w[0], (fp)->w[1], (fp)->fd, (fp)->fs[FP_ENDIAN_IDX]); \ } while(0) fpu_fprintf(f, "CP1 FCR0 0x%08x FCR31 0x%08x SR.FR %d\n", env->fcr0, env->fcr31, (env->CP0_Status & (1 << CP0St_FR)) != 0); fpu_fprintf(f, "FT0: "); printfpr(&env->ft0); fpu_fprintf(f, "FT1: "); printfpr(&env->ft1); fpu_fprintf(f, "FT2: "); printfpr(&env->ft2); for(i = 0; i < 32; i += 2) { fpu_fprintf(f, "%s: ", fregnames[i]); printfpr(FPR(env, i)); } #undef printfpr } void dump_fpu (CPUState *env) { if (loglevel) { fprintf(logfile, "pc=0x" TLSZ " HI=0x" TLSZ " LO=0x" TLSZ " ds %04x " TLSZ " %d\n", env->PC, env->HI, env->LO, env->hflags, env->btarget, env->bcond); fpu_dump_state(env, logfile, fprintf, 0); } } #endif /* MIPS_USES_FPU */ #if defined(MIPS_HAS_MIPS64) && defined(MIPS_DEBUG_SIGN_EXTENSIONS) /* Debug help: The architecture requires 32bit code to maintain proper sign-extened values on 64bit machines. */ #define SIGN_EXT_P(val) ((((val) & ~0x7fffffff) == 0) || (((val) & ~0x7fffffff) == ~0x7fffffff)) 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->PC)) cpu_fprintf(f, "BROKEN: pc=0x" TLSZ "\n", env->PC); if (!SIGN_EXT_P(env->HI)) cpu_fprintf(f, "BROKEN: HI=0x" TLSZ "\n", env->HI); if (!SIGN_EXT_P(env->LO)) cpu_fprintf(f, "BROKEN: LO=0x" TLSZ "\n", env->LO); if (!SIGN_EXT_P(env->btarget)) cpu_fprintf(f, "BROKEN: btarget=0x" TLSZ "\n", env->btarget); for (i = 0; i < 32; i++) { if (!SIGN_EXT_P(env->gpr[i])) cpu_fprintf(f, "BROKEN: %s=0x" TLSZ "\n", regnames[i], env->gpr[i]); } if (!SIGN_EXT_P(env->CP0_EPC)) cpu_fprintf(f, "BROKEN: EPC=0x" TLSZ "\n", env->CP0_EPC); if (!SIGN_EXT_P(env->CP0_LLAddr)) cpu_fprintf(f, "BROKEN: LLAddr=0x" TLSZ "\n", env->CP0_LLAddr); } #endif void cpu_dump_state (CPUState *env, FILE *f, int (*cpu_fprintf)(FILE *f, const char *fmt, ...), int flags) { uint32_t c0_status; int i; cpu_fprintf(f, "pc=0x" TLSZ " HI=0x" TLSZ " LO=0x" TLSZ " ds %04x " TLSZ " %d\n", env->PC, env->HI, env->LO, 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 " TLSZ, regnames[i], env->gpr[i]); if ((i & 3) == 3) cpu_fprintf(f, "\n"); } c0_status = env->CP0_Status; if (env->hflags & MIPS_HFLAG_UM) c0_status |= (1 << CP0St_UM); if (env->hflags & MIPS_HFLAG_ERL) c0_status |= (1 << CP0St_ERL); if (env->hflags & MIPS_HFLAG_EXL) c0_status |= (1 << CP0St_EXL); cpu_fprintf(f, "CP0 Status 0x%08x Cause 0x%08x EPC 0x" TLSZ "\n", c0_status, env->CP0_Cause, env->CP0_EPC); cpu_fprintf(f, " Config0 0x%08x Config1 0x%08x LLAddr 0x" TLSZ "\n", env->CP0_Config0, env->CP0_Config1, env->CP0_LLAddr); #ifdef MIPS_USES_FPU if (c0_status & (1 << CP0St_CU1)) fpu_dump_state(env, f, cpu_fprintf, flags); #endif #if defined(MIPS_HAS_MIPS64) && defined(MIPS_DEBUG_SIGN_EXTENSIONS) cpu_mips_check_sign_extensions(env, f, cpu_fprintf, flags); #endif } CPUMIPSState *cpu_mips_init (void) { CPUMIPSState *env; env = qemu_mallocz(sizeof(CPUMIPSState)); if (!env) return NULL; cpu_exec_init(env); cpu_reset(env); return env; } void cpu_reset (CPUMIPSState *env) { memset(env, 0, offsetof(CPUMIPSState, breakpoints)); tlb_flush(env, 1); /* Minimal init */ #if !defined(CONFIG_USER_ONLY) if (env->hflags & MIPS_HFLAG_BMASK) { /* If the exception was raised from a delay slot, * come back to the jump. */ env->CP0_ErrorEPC = env->PC - 4; env->hflags &= ~MIPS_HFLAG_BMASK; } else { env->CP0_ErrorEPC = env->PC; } env->PC = (int32_t)0xBFC00000; #if defined (MIPS_USES_R4K_TLB) env->CP0_Random = MIPS_TLB_NB - 1; env->tlb_in_use = MIPS_TLB_NB; #endif env->CP0_Wired = 0; /* SMP not implemented */ env->CP0_EBase = (int32_t)0x80000000; env->CP0_Config0 = MIPS_CONFIG0; env->CP0_Config1 = MIPS_CONFIG1; env->CP0_Config2 = MIPS_CONFIG2; env->CP0_Config3 = MIPS_CONFIG3; env->CP0_Status = (1 << CP0St_BEV) | (1 << CP0St_ERL); env->CP0_WatchLo = 0; env->hflags = MIPS_HFLAG_ERL; /* Count register increments in debug mode, EJTAG version 1 */ env->CP0_Debug = (1 << CP0DB_CNT) | (0x1 << CP0DB_VER); env->CP0_PRid = MIPS_CPU; #endif env->exception_index = EXCP_NONE; #if defined(CONFIG_USER_ONLY) env->hflags |= MIPS_HFLAG_UM; env->user_mode_only = 1; #endif #ifdef MIPS_USES_FPU env->fcr0 = MIPS_FCR0; #endif /* XXX some guesswork here, values are CPU specific */ env->SYNCI_Step = 16; env->CCRes = 2; }