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Bochs/bochs/cpu/sse_move.cc

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/////////////////////////////////////////////////////////////////////////
// $Id$
/////////////////////////////////////////////////////////////////////////
//
// Copyright (c) 2003-2015 Stanislav Shwartsman
// Written by Stanislav Shwartsman [sshwarts at sourceforge net]
//
// 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., 51 Franklin St, Fifth Floor, Boston, MA B 02110-1301 USA
//
/////////////////////////////////////////////////////////////////////////
#define NEED_CPU_REG_SHORTCUTS 1
#include "bochs.h"
#include "cpu.h"
#define LOG_THIS BX_CPU_THIS_PTR
#if BX_CPU_LEVEL >= 6
#include "simd_int.h"
void BX_CPU_C::print_state_SSE(void)
{
BX_DEBUG(("MXCSR: 0x%08x", BX_MXCSR_REGISTER));
for(unsigned n=0;n<BX_XMM_REGISTERS;n++) {
BxPackedXmmRegister xmm = BX_READ_XMM_REG(n);
BX_DEBUG(("XMM%02u: %08x%08x:%08x%08x", n,
xmm.xmm32u(3), xmm.xmm32u(2), xmm.xmm32u(1), xmm.xmm32u(0)));
}
}
#endif
#if BX_SUPPORT_FPU
Bit8u BX_CPU_C::pack_FPU_TW(Bit16u twd)
{
Bit8u tag_byte = 0;
if((twd & 0x0003) != 0x0003) tag_byte |= 0x01;
if((twd & 0x000c) != 0x000c) tag_byte |= 0x02;
if((twd & 0x0030) != 0x0030) tag_byte |= 0x04;
if((twd & 0x00c0) != 0x00c0) tag_byte |= 0x08;
if((twd & 0x0300) != 0x0300) tag_byte |= 0x10;
if((twd & 0x0c00) != 0x0c00) tag_byte |= 0x20;
if((twd & 0x3000) != 0x3000) tag_byte |= 0x40;
if((twd & 0xc000) != 0xc000) tag_byte |= 0x80;
return tag_byte;
}
Bit16u BX_CPU_C::unpack_FPU_TW(Bit16u tag_byte)
{
Bit32u twd = 0;
/* FTW
*
* Note that the original format for FTW can be recreated from the stored
* FTW valid bits and the stored 80-bit FP data (assuming the stored data
* was not the contents of MMX registers) using the following table:
| Exponent | Exponent | Fraction | J,M bits | FTW valid | x87 FTW |
| all 1s | all 0s | all 0s | | | |
-------------------------------------------------------------------
| 0 | 0 | 0 | 0x | 1 | S 10 |
| 0 | 0 | 0 | 1x | 1 | V 00 |
-------------------------------------------------------------------
| 0 | 0 | 1 | 00 | 1 | S 10 |
| 0 | 0 | 1 | 10 | 1 | V 00 |
-------------------------------------------------------------------
| 0 | 1 | 0 | 0x | 1 | S 10 |
| 0 | 1 | 0 | 1x | 1 | S 10 |
-------------------------------------------------------------------
| 0 | 1 | 1 | 00 | 1 | Z 01 |
| 0 | 1 | 1 | 10 | 1 | S 10 |
-------------------------------------------------------------------
| 1 | 0 | 0 | 1x | 1 | S 10 |
| 1 | 0 | 0 | 1x | 1 | S 10 |
-------------------------------------------------------------------
| 1 | 0 | 1 | 00 | 1 | S 10 |
| 1 | 0 | 1 | 10 | 1 | S 10 |
-------------------------------------------------------------------
| all combinations above | 0 | E 11 |
*
* The J-bit is defined to be the 1-bit binary integer to the left of
* the decimal place in the significand.
*
* The M-bit is defined to be the most significant bit of the fractional
* portion of the significand (i.e., the bit immediately to the right of
* the decimal place). When the M-bit is the most significant bit of the
* fractional portion of the significand, it must be 0 if the fraction
* is all 0's.
*/
for(int index = 7;index >= 0; index--, twd <<= 2, tag_byte <<= 1)
{
if(tag_byte & 0x80) {
const floatx80 &fpu_reg = BX_FPU_REG(index);
twd |= FPU_tagof(fpu_reg);
}
else {
twd |= FPU_Tag_Empty;
}
}
return (twd >> 2);
}
#endif
/* ************************************ */
/* SSE: SAVE/RESTORE FPU/MMX/SSEx STATE */
/* ************************************ */
/* 0F AE Grp15 010 */
BX_INSF_TYPE BX_CPP_AttrRegparmN(1) BX_CPU_C::LDMXCSR(bxInstruction_c *i)
{
#if BX_CPU_LEVEL >= 6
bx_address eaddr = BX_CPU_CALL_METHODR(i->ResolveModrm, (i));
Bit32u new_mxcsr = read_virtual_dword(i->seg(), eaddr);
if(new_mxcsr & ~MXCSR_MASK)
exception(BX_GP_EXCEPTION, 0);
BX_MXCSR_REGISTER = new_mxcsr;
#endif
BX_NEXT_INSTR(i);
}
/* 0F AE Grp15 011 */
BX_INSF_TYPE BX_CPP_AttrRegparmN(1) BX_CPU_C::STMXCSR(bxInstruction_c *i)
{
#if BX_CPU_LEVEL >= 6
Bit32u mxcsr = BX_MXCSR_REGISTER & MXCSR_MASK;
bx_address eaddr = BX_CPU_CALL_METHODR(i->ResolveModrm, (i));
write_virtual_dword(i->seg(), eaddr, mxcsr);
#endif
BX_NEXT_INSTR(i);
}
/* 0F AE Grp15 000 */
BX_INSF_TYPE BX_CPP_AttrRegparmN(1) BX_CPU_C::FXSAVE(bxInstruction_c *i)
{
#if BX_CPU_LEVEL >= 6
unsigned index;
BxPackedXmmRegister xmm;
BX_DEBUG(("FXSAVE: save FPU/MMX/SSE state"));
if (BX_CPU_THIS_PTR cr0.get_EM() || BX_CPU_THIS_PTR cr0.get_TS())
exception(BX_NM_EXCEPTION, 0);
xmm.xmm16u(0) = BX_CPU_THIS_PTR the_i387.get_control_word();
xmm.xmm16u(1) = BX_CPU_THIS_PTR the_i387.get_status_word();
xmm.xmm16u(2) = pack_FPU_TW(BX_CPU_THIS_PTR the_i387.get_tag_word());
/* x87 FPU Opcode (16 bits) */
/* The lower 11 bits contain the FPU opcode, upper 5 bits are reserved */
xmm.xmm16u(3) = BX_CPU_THIS_PTR the_i387.foo;
/*
* x87 FPU IP Offset (32/64 bits)
* The contents of this field differ depending on the current
* addressing mode (16/32/64 bit) when the FXSAVE instruction was executed:
* + 64-bit mode - 64-bit IP offset
* + 32-bit mode - 32-bit IP offset
* + 16-bit mode - low 16 bits are IP offset; high 16 bits are reserved.
* x87 CS FPU IP Selector
* + 16 bit, in 16/32 bit mode only
*/
#if BX_SUPPORT_X86_64
if (i->os64L()) /* 64 bit operand size mode */
{
xmm.xmm64u(1) = (BX_CPU_THIS_PTR the_i387.fip);
}
else
#endif
{
xmm.xmm32u(2) = (Bit32u)(BX_CPU_THIS_PTR the_i387.fip);
xmm.xmm32u(3) = x87_get_FCS();
}
bx_address eaddr = BX_CPU_CALL_METHODR(i->ResolveModrm, (i));
write_virtual_xmmword_aligned(i->seg(), eaddr, &xmm);
bx_address asize_mask = i->asize_mask();
/*
* x87 FPU Instruction Operand (Data) Pointer Offset (32/64 bits)
* The contents of this field differ depending on the current
* addressing mode (16/32 bit) when the FXSAVE instruction was executed:
* + 64-bit mode - 64-bit offset
* + 32-bit mode - 32-bit offset
* + 16-bit mode - low 16 bits are offset; high 16 bits are reserved.
* x87 DS FPU Instruction Operand (Data) Pointer Selector
* + 16 bit, in 16/32 bit mode only
*/
#if BX_SUPPORT_X86_64
if (i->os64L()) /* 64 bit operand size mode */
{
xmm.xmm64u(0) = (BX_CPU_THIS_PTR the_i387.fdp);
}
else
#endif
{
xmm.xmm32u(0) = (Bit32u)(BX_CPU_THIS_PTR the_i387.fdp);
xmm.xmm32u(1) = x87_get_FDS();
}
if (is_cpu_extension_supported(BX_ISA_SSE)) {
xmm.xmm32u(2) = BX_MXCSR_REGISTER;
xmm.xmm32u(3) = MXCSR_MASK;
}
else {
xmm.xmm32u(2) = 0;
xmm.xmm32u(3) = 0;
}
write_virtual_xmmword(i->seg(), (eaddr + 16) & asize_mask, &xmm);
/* store i387 register file */
for(index=0; index < 8; index++)
{
const floatx80 &fp = BX_READ_FPU_REG(index);
xmm.xmm64u(0) = fp.fraction;
xmm.xmm64u(1) = 0;
xmm.xmm16u(4) = fp.exp;
write_virtual_xmmword(i->seg(), (eaddr+index*16+32) & asize_mask, &xmm);
}
#if BX_SUPPORT_X86_64
if (BX_CPU_THIS_PTR efer.get_FFXSR() && CPL == 0 && long64_mode()) {
BX_NEXT_INSTR(i); // skip saving of the XMM state
}
#endif
if(BX_CPU_THIS_PTR cr4.get_OSFXSR() && is_cpu_extension_supported(BX_ISA_SSE))
{
/* store XMM register file */
for(index=0; index < 16; index++)
{
// save XMM8-XMM15 only in 64-bit mode
if (index < 8 || long64_mode()) {
write_virtual_xmmword(i->seg(),
(eaddr+index*16+160) & asize_mask, &BX_READ_XMM_REG(index));
}
}
}
/* do not touch reserved fields */
#endif
BX_NEXT_INSTR(i);
}
/* 0F AE Grp15 001 */
BX_INSF_TYPE BX_CPP_AttrRegparmN(1) BX_CPU_C::FXRSTOR(bxInstruction_c *i)
{
#if BX_CPU_LEVEL >= 6
BxPackedXmmRegister xmm;
unsigned index;
BX_DEBUG(("FXRSTOR: restore FPU/MMX/SSE state"));
if (BX_CPU_THIS_PTR cr0.get_EM() || BX_CPU_THIS_PTR cr0.get_TS())
exception(BX_NM_EXCEPTION, 0);
bx_address eaddr = BX_CPU_CALL_METHODR(i->ResolveModrm, (i));
read_virtual_xmmword_aligned(i->seg(), eaddr, &xmm);
bx_address asize_mask = i->asize_mask();
BX_CPU_THIS_PTR the_i387.cwd = xmm.xmm16u(0);
BX_CPU_THIS_PTR the_i387.swd = xmm.xmm16u(1);
BX_CPU_THIS_PTR the_i387.tos = (xmm.xmm16u(1) >> 11) & 0x07;
/* always set bit 6 as '1 */
BX_CPU_THIS_PTR the_i387.cwd =
(BX_CPU_THIS_PTR the_i387.cwd & ~FPU_CW_Reserved_Bits) | 0x0040;
/* Restore x87 FPU Opcode */
/* The lower 11 bits contain the FPU opcode, upper 5 bits are reserved */
BX_CPU_THIS_PTR the_i387.foo = xmm.xmm16u(3) & 0x7FF;
/* Restore x87 FPU IP */
#if BX_SUPPORT_X86_64
if (i->os64L()) {
BX_CPU_THIS_PTR the_i387.fip = xmm.xmm64u(1);
BX_CPU_THIS_PTR the_i387.fcs = 0;
}
else
#endif
{
BX_CPU_THIS_PTR the_i387.fip = xmm.xmm32u(2);
BX_CPU_THIS_PTR the_i387.fcs = xmm.xmm16u(6);
}
Bit32u tag_byte = xmm.xmmubyte(4);
/* Restore x87 FPU DP */
read_virtual_xmmword(i->seg(), (eaddr + 16) & asize_mask, &xmm);
#if BX_SUPPORT_X86_64
if (i->os64L()) {
BX_CPU_THIS_PTR the_i387.fdp = xmm.xmm64u(0);
BX_CPU_THIS_PTR the_i387.fds = 0;
}
else
#endif
{
BX_CPU_THIS_PTR the_i387.fdp = xmm.xmm32u(0);
BX_CPU_THIS_PTR the_i387.fds = xmm.xmm16u(2);
}
if(/* BX_CPU_THIS_PTR cr4.get_OSFXSR() && */ is_cpu_extension_supported(BX_ISA_SSE))
{
Bit32u new_mxcsr = xmm.xmm32u(2);
if(new_mxcsr & ~MXCSR_MASK)
exception(BX_GP_EXCEPTION, 0);
BX_MXCSR_REGISTER = new_mxcsr;
}
/* load i387 register file */
for(index=0; index < 8; index++)
{
floatx80 reg;
reg.fraction = read_virtual_qword(i->seg(), (eaddr+index*16+32) & asize_mask);
reg.exp = read_virtual_word (i->seg(), (eaddr+index*16+40) & asize_mask);
// update tag only if it is not empty
BX_WRITE_FPU_REGISTER_AND_TAG(reg,
IS_TAG_EMPTY(index) ? FPU_Tag_Empty : FPU_tagof(reg), index);
}
BX_CPU_THIS_PTR the_i387.twd = unpack_FPU_TW(tag_byte);
/* check for unmasked exceptions */
if (FPU_PARTIAL_STATUS & ~FPU_CONTROL_WORD & FPU_CW_Exceptions_Mask) {
/* set the B and ES bits in the status-word */
FPU_PARTIAL_STATUS |= FPU_SW_Summary | FPU_SW_Backward;
}
else {
/* clear the B and ES bits in the status-word */
FPU_PARTIAL_STATUS &= ~(FPU_SW_Summary | FPU_SW_Backward);
}
#if BX_SUPPORT_X86_64
if (BX_CPU_THIS_PTR efer.get_FFXSR() && CPL == 0 && long64_mode()) {
BX_NEXT_INSTR(i); // skip restore of the XMM state
}
#endif
/* If the OSFXSR bit in CR4 is not set, the FXRSTOR instruction does
not restore the states of the XMM and MXCSR registers. */
if(BX_CPU_THIS_PTR cr4.get_OSFXSR() && is_cpu_extension_supported(BX_ISA_SSE))
{
/* load XMM register file */
for(index=0; index < 16; index++)
{
// restore XMM8-XMM15 only in 64-bit mode
if (index < 8 || long64_mode()) {
read_virtual_xmmword(i->seg(),
(eaddr+index*16+160) & asize_mask, &BX_READ_XMM_REG(index));
}
}
}
#endif
BX_NEXT_INSTR(i);
}
/* *************************** */
/* SSE: MEMORY MOVE OPERATIONS */
/* *************************** */
/* All these opcodes never generate SIMD floating point exeptions */
/* MOVUPS: 0F 10 */
/* MOVUPD: 66 0F 10 */
/* MOVDQU: F3 0F 6F */
/* LDDQU: F2 0F F0 */
BX_INSF_TYPE BX_CPP_AttrRegparmN(1) BX_CPU_C::MOVUPS_VpsWpsM(bxInstruction_c *i)
{
#if BX_CPU_LEVEL >= 6
bx_address eaddr = BX_CPU_CALL_METHODR(i->ResolveModrm, (i));
read_virtual_xmmword(i->seg(), eaddr, &BX_XMM_REG(i->dst()));
#endif
BX_NEXT_INSTR(i);
}
BX_INSF_TYPE BX_CPP_AttrRegparmN(1) BX_CPU_C::MOVUPS_WpsVpsM(bxInstruction_c *i)
{
#if BX_CPU_LEVEL >= 6
bx_address eaddr = BX_CPU_CALL_METHODR(i->ResolveModrm, (i));
write_virtual_xmmword(i->seg(), eaddr, &BX_XMM_REG(i->src()));
#endif
BX_NEXT_INSTR(i);
}
/* MOVAPS: 0F 28 */
/* MOVAPD: 66 0F 28 */
/* MOVDQA: F3 0F 6F */
BX_INSF_TYPE BX_CPP_AttrRegparmN(1) BX_CPU_C::MOVAPS_VpsWpsR(bxInstruction_c *i)
{
#if BX_CPU_LEVEL >= 6
BX_WRITE_XMM_REG(i->dst(), BX_READ_XMM_REG(i->src()));
#endif
BX_NEXT_INSTR(i);
}
BX_INSF_TYPE BX_CPP_AttrRegparmN(1) BX_CPU_C::MOVAPS_VpsWpsM(bxInstruction_c *i)
{
#if BX_CPU_LEVEL >= 6
bx_address eaddr = BX_CPU_CALL_METHODR(i->ResolveModrm, (i));
read_virtual_xmmword_aligned(i->seg(), eaddr, &BX_XMM_REG(i->dst()));
#endif
BX_NEXT_INSTR(i);
}
/* MOVAPS: 0F 29 */
/* MOVNTPS: 0F 2B */
/* MOVNTPD: 66 0F 2B */
/* MOVNTDQ: 66 0F E7 */
BX_INSF_TYPE BX_CPP_AttrRegparmN(1) BX_CPU_C::MOVAPS_WpsVpsM(bxInstruction_c *i)
{
#if BX_CPU_LEVEL >= 6
bx_address eaddr = BX_CPU_CALL_METHODR(i->ResolveModrm, (i));
write_virtual_xmmword_aligned(i->seg(), eaddr, &BX_XMM_REG(i->src()));
#endif
BX_NEXT_INSTR(i);
}
/* F3 0F 10 */
BX_INSF_TYPE BX_CPP_AttrRegparmN(1) BX_CPU_C::MOVSS_VssWssR(bxInstruction_c *i)
{
#if BX_CPU_LEVEL >= 6
/* If the source operand is an XMM register, the high-order
96 bits of the destination XMM register are not modified. */
BX_WRITE_XMM_REG_LO_DWORD(i->dst(), BX_READ_XMM_REG_LO_DWORD(i->src()));
#endif
BX_NEXT_INSTR(i);
}
BX_INSF_TYPE BX_CPP_AttrRegparmN(1) BX_CPU_C::MOVSS_VssWssM(bxInstruction_c *i)
{
#if BX_CPU_LEVEL >= 6
BxPackedXmmRegister op;
bx_address eaddr = BX_CPU_CALL_METHODR(i->ResolveModrm, (i));
/* If the source operand is a memory location, the high-order
96 bits of the destination XMM register are cleared to 0s */
op.xmm64u(0) = (Bit64u) read_virtual_dword(i->seg(), eaddr);
op.xmm64u(1) = 0;
BX_WRITE_XMM_REGZ(i->dst(), op, i->getVL());
#endif
BX_NEXT_INSTR(i);
}
/* F3 0F 11 */
BX_INSF_TYPE BX_CPP_AttrRegparmN(1) BX_CPU_C::MOVSS_WssVssM(bxInstruction_c *i)
{
#if BX_CPU_LEVEL >= 6
bx_address eaddr = BX_CPU_CALL_METHODR(i->ResolveModrm, (i));
write_virtual_dword(i->seg(), eaddr, BX_READ_XMM_REG_LO_DWORD(i->src()));
#endif
BX_NEXT_INSTR(i);
}
/* MOVLPS: 0F 13 */
/* MOVLPD: 66 0F 13 */
BX_INSF_TYPE BX_CPP_AttrRegparmN(1) BX_CPU_C::MOVSD_WsdVsdM(bxInstruction_c *i)
{
#if BX_CPU_LEVEL >= 6
bx_address eaddr = BX_CPU_CALL_METHODR(i->ResolveModrm, (i));
write_virtual_qword(i->seg(), eaddr, BX_XMM_REG_LO_QWORD(i->src()));
#endif
BX_NEXT_INSTR(i);
}
/* F2 0F 10 */
BX_INSF_TYPE BX_CPP_AttrRegparmN(1) BX_CPU_C::MOVSD_VsdWsdR(bxInstruction_c *i)
{
#if BX_CPU_LEVEL >= 6
/* If the source operand is an XMM register, the high-order
64 bits of the destination XMM register are not modified. */
BX_WRITE_XMM_REG_LO_QWORD(i->dst(), BX_READ_XMM_REG_LO_QWORD(i->src()));
#endif
BX_NEXT_INSTR(i);
}
/* MOVHLPS: 0F 12 */
BX_INSF_TYPE BX_CPP_AttrRegparmN(1) BX_CPU_C::MOVHLPS_VpsWpsR(bxInstruction_c *i)
{
#if BX_CPU_LEVEL >= 6
BX_WRITE_XMM_REG_LO_QWORD(i->dst(), BX_READ_XMM_REG_HI_QWORD(i->src()));
#endif
BX_NEXT_INSTR(i);
}
/* MOVLPS: 0F 12 */
/* MOVLPD: 66 0F 12 */
BX_INSF_TYPE BX_CPP_AttrRegparmN(1) BX_CPU_C::MOVLPS_VpsMq(bxInstruction_c *i)
{
#if BX_CPU_LEVEL >= 6
bx_address eaddr = BX_CPU_CALL_METHODR(i->ResolveModrm, (i));
/* pointer, segment address pair */
Bit64u val64 = read_virtual_qword(i->seg(), eaddr);
BX_WRITE_XMM_REG_LO_QWORD(i->dst(), val64);
#endif
BX_NEXT_INSTR(i);
}
/* F2 0F 12 */
BX_INSF_TYPE BX_CPP_AttrRegparmN(1) BX_CPU_C::MOVDDUP_VpdWqR(bxInstruction_c *i)
{
#if BX_CPU_LEVEL >= 6
xmm_pbroadcastq(&BX_XMM_REG(i->dst()), BX_READ_XMM_REG_LO_QWORD(i->src()));
#endif
BX_NEXT_INSTR(i);
}
/* F3 0F 12 */
BX_INSF_TYPE BX_CPP_AttrRegparmN(1) BX_CPU_C::MOVSLDUP_VpsWpsR(bxInstruction_c *i)
{
#if BX_CPU_LEVEL >= 6
BxPackedXmmRegister op = BX_READ_XMM_REG(i->src());
op.xmm32u(1) = op.xmm32u(0);
op.xmm32u(3) = op.xmm32u(2);
BX_WRITE_XMM_REG(i->dst(), op);
#endif
BX_NEXT_INSTR(i);
}
/* F3 0F 16 */
BX_INSF_TYPE BX_CPP_AttrRegparmN(1) BX_CPU_C::MOVSHDUP_VpsWpsR(bxInstruction_c *i)
{
#if BX_CPU_LEVEL >= 6
BxPackedXmmRegister op = BX_READ_XMM_REG(i->src());
op.xmm32u(0) = op.xmm32u(1);
op.xmm32u(2) = op.xmm32u(3);
BX_WRITE_XMM_REG(i->dst(), op);
#endif
BX_NEXT_INSTR(i);
}
/* MOVLHPS: 0F 16 */
BX_INSF_TYPE BX_CPP_AttrRegparmN(1) BX_CPU_C::MOVLHPS_VpsWpsR(bxInstruction_c *i)
{
#if BX_CPU_LEVEL >= 6
BX_WRITE_XMM_REG_HI_QWORD(i->dst(), BX_READ_XMM_REG_LO_QWORD(i->src()));
#endif
BX_NEXT_INSTR(i);
}
/* MOVHPS: 0F 16 */
/* MOVHPD: 66 0F 16 */
BX_INSF_TYPE BX_CPP_AttrRegparmN(1) BX_CPU_C::MOVHPS_VpsMq(bxInstruction_c *i)
{
#if BX_CPU_LEVEL >= 6
bx_address eaddr = BX_CPU_CALL_METHODR(i->ResolveModrm, (i));
/* pointer, segment address pair */
Bit64u val64 = read_virtual_qword(i->seg(), eaddr);
BX_WRITE_XMM_REG_HI_QWORD(i->dst(), val64);
#endif
BX_NEXT_INSTR(i);
}
/* MOVHPS: 0F 17 */
/* MOVHPD: 66 0F 17 */
BX_INSF_TYPE BX_CPP_AttrRegparmN(1) BX_CPU_C::MOVHPS_MqVps(bxInstruction_c *i)
{
#if BX_CPU_LEVEL >= 6
bx_address eaddr = BX_CPU_CALL_METHODR(i->ResolveModrm, (i));
write_virtual_qword(i->seg(), eaddr, BX_XMM_REG_HI_QWORD(i->src()));
#endif
BX_NEXT_INSTR(i);
}
/* 66 0F F7 */
BX_INSF_TYPE BX_CPP_AttrRegparmN(1) BX_CPU_C::MASKMOVDQU_VdqUdq(bxInstruction_c *i)
{
#if BX_CPU_LEVEL >= 6
bx_address rdi = RDI & i->asize_mask();
BxPackedXmmRegister op = BX_READ_XMM_REG(i->src1()),
mask = BX_READ_XMM_REG(i->src2()), temp;
// check for write permissions before writing even if mask is all 0s
temp.xmm64u(0) = read_RMW_virtual_qword(i->seg(), rdi);
temp.xmm64u(1) = read_RMW_virtual_qword(i->seg(), (rdi + 8) & i->asize_mask());
/* no data will be written to memory if mask is all 0s */
if ((mask.xmm64u(0) | mask.xmm64u(1)) == 0) {
BX_NEXT_INSTR(i);
}
for(unsigned j=0; j<16; j++) {
if(mask.xmmubyte(j) & 0x80) temp.xmmubyte(j) = op.xmmubyte(j);
}
// and write result back to the memory
write_RMW_linear_qword(temp.xmm64u(1));
// write permissions already checked by read_RMW_virtual_qword_64
write_virtual_qword(i->seg(), rdi, temp.xmm64u(0));
#endif
BX_NEXT_INSTR(i);
}
/* 0F 50 */
BX_INSF_TYPE BX_CPP_AttrRegparmN(1) BX_CPU_C::MOVMSKPS_GdUps(bxInstruction_c *i)
{
#if BX_CPU_LEVEL >= 6
Bit32u mask = xmm_pmovmskd(&BX_XMM_REG(i->src()));
BX_WRITE_32BIT_REGZ(i->dst(), mask);
#endif
BX_NEXT_INSTR(i);
}
/* 66 0F 50 */
BX_INSF_TYPE BX_CPP_AttrRegparmN(1) BX_CPU_C::MOVMSKPD_GdUpd(bxInstruction_c *i)
{
#if BX_CPU_LEVEL >= 6
Bit32u mask = xmm_pmovmskq(&BX_XMM_REG(i->src()));
BX_WRITE_32BIT_REGZ(i->dst(), mask);
#endif
BX_NEXT_INSTR(i);
}
/* 66 0F 6E */
BX_INSF_TYPE BX_CPP_AttrRegparmN(1) BX_CPU_C::MOVD_VdqEdR(bxInstruction_c *i)
{
#if BX_CPU_LEVEL >= 6
BxPackedXmmRegister op;
op.xmm64u(0) = (Bit64u) BX_READ_32BIT_REG(i->src());
op.xmm64u(1) = 0;
BX_WRITE_XMM_REGZ(i->dst(), op, i->getVL());
#endif
BX_NEXT_INSTR(i);
}
#if BX_SUPPORT_X86_64
/* 66 0F 6E */
BX_INSF_TYPE BX_CPP_AttrRegparmN(1) BX_CPU_C::MOVQ_VdqEqR(bxInstruction_c *i)
{
BxPackedXmmRegister op;
op.xmm64u(0) = BX_READ_64BIT_REG(i->src());
op.xmm64u(1) = 0;
BX_WRITE_XMM_REGZ(i->dst(), op, i->getVL());
BX_NEXT_INSTR(i);
}
#endif
/* 66 0F 7E */
BX_INSF_TYPE BX_CPP_AttrRegparmN(1) BX_CPU_C::MOVD_EdVdR(bxInstruction_c *i)
{
#if BX_CPU_LEVEL >= 6
BX_WRITE_32BIT_REGZ(i->dst(), BX_READ_XMM_REG_LO_DWORD(i->src()));
#endif
BX_NEXT_INSTR(i);
}
#if BX_SUPPORT_X86_64
/* 66 0F 7E */
BX_INSF_TYPE BX_CPP_AttrRegparmN(1) BX_CPU_C::MOVQ_EqVqR(bxInstruction_c *i)
{
BX_WRITE_64BIT_REG(i->dst(), BX_READ_XMM_REG_LO_QWORD(i->src()));
BX_NEXT_INSTR(i);
}
#endif
/* F3 0F 7E */
BX_INSF_TYPE BX_CPP_AttrRegparmN(1) BX_CPU_C::MOVQ_VqWqR(bxInstruction_c *i)
{
#if BX_CPU_LEVEL >= 6
BxPackedXmmRegister op;
op.xmm64u(0) = BX_READ_XMM_REG_LO_QWORD(i->src());
op.xmm64u(1) = 0; /* zero-extension to 128 bit */
BX_WRITE_XMM_REGZ(i->dst(), op, i->getVL());
#endif
BX_NEXT_INSTR(i);
}
BX_INSF_TYPE BX_CPP_AttrRegparmN(1) BX_CPU_C::MOVSD_VsdWsdM(bxInstruction_c *i)
{
#if BX_CPU_LEVEL >= 6
BxPackedXmmRegister op;
bx_address eaddr = BX_CPU_CALL_METHODR(i->ResolveModrm, (i));
op.xmm64u(0) = read_virtual_qword(i->seg(), eaddr);
op.xmm64u(1) = 0; /* zero-extension to 128 bit */
BX_WRITE_XMM_REGZ(i->dst(), op, i->getVL());
#endif
BX_NEXT_INSTR(i);
}
/* F2 0F D6 */
BX_INSF_TYPE BX_CPP_AttrRegparmN(1) BX_CPU_C::MOVDQ2Q_PqUdq(bxInstruction_c *i)
{
#if BX_CPU_LEVEL >= 6
BX_CPU_THIS_PTR FPU_check_pending_exceptions(); /* check floating point status word for a pending FPU exceptions */
BX_CPU_THIS_PTR prepareFPU2MMX();
BxPackedMmxRegister mm;
MMXUQ(mm) = BX_READ_XMM_REG_LO_QWORD(i->src());
BX_WRITE_MMX_REG(i->dst(), mm);
#endif
BX_NEXT_INSTR(i);
}
/* F3 0F D6 */
BX_INSF_TYPE BX_CPP_AttrRegparmN(1) BX_CPU_C::MOVQ2DQ_VdqQq(bxInstruction_c *i)
{
#if BX_CPU_LEVEL >= 6
BX_CPU_THIS_PTR FPU_check_pending_exceptions(); /* check floating point status word for a pending FPU exceptions */
BX_CPU_THIS_PTR prepareFPU2MMX();
BxPackedXmmRegister op;
op.xmm64u(0) = BX_MMX_REG(i->src());
op.xmm64u(1) = 0;
BX_WRITE_XMM_REG(i->dst(), op);
#endif
BX_NEXT_INSTR(i);
}
/* 66 0F D7 */
BX_INSF_TYPE BX_CPP_AttrRegparmN(1) BX_CPU_C::PMOVMSKB_GdUdq(bxInstruction_c *i)
{
#if BX_CPU_LEVEL >= 6
Bit32u mask = xmm_pmovmskb(&BX_XMM_REG(i->src()));
BX_WRITE_32BIT_REGZ(i->dst(), mask);
#endif
BX_NEXT_INSTR(i);
}
/* ************************** */
/* 3-BYTE-OPCODE INSTRUCTIONS */
/* ************************** */
#if BX_CPU_LEVEL >= 6
/* 66 0F 38 20 */
BX_INSF_TYPE BX_CPP_AttrRegparmN(1) BX_CPU_C::PMOVSXBW_VdqWqR(bxInstruction_c *i)
{
BxPackedXmmRegister result;
BxPackedMmxRegister op;
// use MMX register as 64-bit value with convinient accessors
MMXUQ(op) = BX_READ_XMM_REG_LO_QWORD(i->src());
result.xmm16u(0) = MMXSB0(op);
result.xmm16u(1) = MMXSB1(op);
result.xmm16u(2) = MMXSB2(op);
result.xmm16u(3) = MMXSB3(op);
result.xmm16u(4) = MMXSB4(op);
result.xmm16u(5) = MMXSB5(op);
result.xmm16u(6) = MMXSB6(op);
result.xmm16u(7) = MMXSB7(op);
BX_WRITE_XMM_REGZ(i->dst(), result, i->getVL());
BX_NEXT_INSTR(i);
}
/* 66 0F 38 21 */
BX_INSF_TYPE BX_CPP_AttrRegparmN(1) BX_CPU_C::PMOVSXBD_VdqWdR(bxInstruction_c *i)
{
BxPackedXmmRegister result;
Bit32u val32 = BX_READ_XMM_REG_LO_DWORD(i->src());
result.xmm32u(0) = (Bit8s) (val32 & 0xFF);
result.xmm32u(1) = (Bit8s) ((val32 >> 8) & 0xFF);
result.xmm32u(2) = (Bit8s) ((val32 >> 16) & 0xFF);
result.xmm32u(3) = (Bit8s) (val32 >> 24);
BX_WRITE_XMM_REGZ(i->dst(), result, i->getVL());
BX_NEXT_INSTR(i);
}
/* 66 0F 38 22 */
BX_INSF_TYPE BX_CPP_AttrRegparmN(1) BX_CPU_C::PMOVSXBQ_VdqWwR(bxInstruction_c *i)
{
BxPackedXmmRegister result;
Bit16u val16 = BX_READ_XMM_REG_LO_WORD(i->src());
result.xmm64u(0) = (Bit8s) (val16 & 0xFF);
result.xmm64u(1) = (Bit8s) (val16 >> 8);
BX_WRITE_XMM_REGZ(i->dst(), result, i->getVL());
BX_NEXT_INSTR(i);
}
/* 66 0F 38 23 */
BX_INSF_TYPE BX_CPP_AttrRegparmN(1) BX_CPU_C::PMOVSXWD_VdqWqR(bxInstruction_c *i)
{
BxPackedXmmRegister result;
BxPackedMmxRegister op;
// use MMX register as 64-bit value with convinient accessors
MMXUQ(op) = BX_READ_XMM_REG_LO_QWORD(i->src());
result.xmm32u(0) = (Bit16s) MMXSW0(op);
result.xmm32u(1) = (Bit16s) MMXSW1(op);
result.xmm32u(2) = (Bit16s) MMXSW2(op);
result.xmm32u(3) = (Bit16s) MMXSW3(op);
BX_WRITE_XMM_REGZ(i->dst(), result, i->getVL());
BX_NEXT_INSTR(i);
}
/* 66 0F 38 24 */
BX_INSF_TYPE BX_CPP_AttrRegparmN(1) BX_CPU_C::PMOVSXWQ_VdqWdR(bxInstruction_c *i)
{
BxPackedXmmRegister result;
Bit32u val32 = BX_READ_XMM_REG_LO_DWORD(i->src());
result.xmm64u(0) = (Bit16s) (val32 & 0xFFFF);
result.xmm64u(1) = (Bit16s) (val32 >> 16);
BX_WRITE_XMM_REGZ(i->dst(), result, i->getVL());
BX_NEXT_INSTR(i);
}
/* 66 0F 38 25 */
BX_INSF_TYPE BX_CPP_AttrRegparmN(1) BX_CPU_C::PMOVSXDQ_VdqWqR(bxInstruction_c *i)
{
BxPackedXmmRegister result;
Bit64u val64 = BX_READ_XMM_REG_LO_QWORD(i->src());
result.xmm64u(0) = (Bit32s) (val64 & 0xFFFFFFFF);
result.xmm64u(1) = (Bit32s) (val64 >> 32);
BX_WRITE_XMM_REGZ(i->dst(), result, i->getVL());
BX_NEXT_INSTR(i);
}
/* 66 0F 38 30 */
BX_INSF_TYPE BX_CPP_AttrRegparmN(1) BX_CPU_C::PMOVZXBW_VdqWqR(bxInstruction_c *i)
{
BxPackedXmmRegister result;
BxPackedMmxRegister op;
// use MMX register as 64-bit value with convinient accessors
MMXUQ(op) = BX_READ_XMM_REG_LO_QWORD(i->src());
result.xmm16u(0) = MMXUB0(op);
result.xmm16u(1) = MMXUB1(op);
result.xmm16u(2) = MMXUB2(op);
result.xmm16u(3) = MMXUB3(op);
result.xmm16u(4) = MMXUB4(op);
result.xmm16u(5) = MMXUB5(op);
result.xmm16u(6) = MMXUB6(op);
result.xmm16u(7) = MMXUB7(op);
BX_WRITE_XMM_REGZ(i->dst(), result, i->getVL());
BX_NEXT_INSTR(i);
}
/* 66 0F 38 31 */
BX_INSF_TYPE BX_CPP_AttrRegparmN(1) BX_CPU_C::PMOVZXBD_VdqWdR(bxInstruction_c *i)
{
BxPackedXmmRegister result;
Bit32u val32 = BX_READ_XMM_REG_LO_DWORD(i->src());
result.xmm32u(0) = val32 & 0xFF;
result.xmm32u(1) = (val32 >> 8) & 0xFF;
result.xmm32u(2) = (val32 >> 16) & 0xFF;
result.xmm32u(3) = val32 >> 24;
BX_WRITE_XMM_REGZ(i->dst(), result, i->getVL());
BX_NEXT_INSTR(i);
}
/* 66 0F 38 32 */
BX_INSF_TYPE BX_CPP_AttrRegparmN(1) BX_CPU_C::PMOVZXBQ_VdqWwR(bxInstruction_c *i)
{
BxPackedXmmRegister result;
Bit16u val16 = BX_READ_XMM_REG_LO_WORD(i->src());
result.xmm64u(0) = val16 & 0xFF;
result.xmm64u(1) = val16 >> 8;
BX_WRITE_XMM_REGZ(i->dst(), result, i->getVL());
BX_NEXT_INSTR(i);
}
/* 66 0F 38 33 */
BX_INSF_TYPE BX_CPP_AttrRegparmN(1) BX_CPU_C::PMOVZXWD_VdqWqR(bxInstruction_c *i)
{
BxPackedXmmRegister result;
BxPackedMmxRegister op;
// use MMX register as 64-bit value with convinient accessors
MMXUQ(op) = BX_READ_XMM_REG_LO_QWORD(i->src());
result.xmm32u(0) = MMXUW0(op);
result.xmm32u(1) = MMXUW1(op);
result.xmm32u(2) = MMXUW2(op);
result.xmm32u(3) = MMXUW3(op);
BX_WRITE_XMM_REGZ(i->dst(), result, i->getVL());
BX_NEXT_INSTR(i);
}
/* 66 0F 38 34 */
BX_INSF_TYPE BX_CPP_AttrRegparmN(1) BX_CPU_C::PMOVZXWQ_VdqWdR(bxInstruction_c *i)
{
BxPackedXmmRegister result;
Bit32u val32 = BX_READ_XMM_REG_LO_DWORD(i->src());
result.xmm64u(0) = val32 & 0xFFFF;
result.xmm64u(1) = val32 >> 16;
BX_WRITE_XMM_REGZ(i->dst(), result, i->getVL());
BX_NEXT_INSTR(i);
}
/* 66 0F 38 35 */
BX_INSF_TYPE BX_CPP_AttrRegparmN(1) BX_CPU_C::PMOVZXDQ_VdqWqR(bxInstruction_c *i)
{
BxPackedXmmRegister result;
Bit64u val64 = BX_READ_XMM_REG_LO_QWORD(i->src());
result.xmm64u(0) = val64 & 0xFFFFFFFF;
result.xmm64u(1) = val64 >> 32;
BX_WRITE_XMM_REGZ(i->dst(), result, i->getVL());
BX_NEXT_INSTR(i);
}
/* 66 0F 3A 0F */
BX_INSF_TYPE BX_CPP_AttrRegparmN(1) BX_CPU_C::PALIGNR_VdqWdqIbR(bxInstruction_c *i)
{
BxPackedXmmRegister op1 = BX_READ_XMM_REG(i->dst()), op2 = BX_READ_XMM_REG(i->src());
xmm_palignr(&op2, &op1, i->Ib());
BX_WRITE_XMM_REG(i->dst(), op2);
BX_NEXT_INSTR(i);
}
#endif
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