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serenity/DevTools/UserspaceEmulator/SoftCPU.cpp
Andreas Kling 8656835935 UserspaceEmulator: Add a very simple instruction fetch cache 
To avoid MMU region lookup on every single instruction fetch, we now
cache a raw pointer to the current instruction. This gets automatically
invalidated when we jump somewhere, but as long as we're executing
sequentially, instruction fetches will hit the cache and bypass all
the region lookup stuff.

This is about a ~2x speedup. :^)
2020-07-13 20:14:14 +02:00

1840 lines
58 KiB
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/*
* Copyright (c) 2020, Andreas Kling <kling@serenityos.org>
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* 1. Redistributions of source code must retain the above copyright notice, this
* list of conditions and the following disclaimer.
*
* 2. Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#include "SoftCPU.h"
#include "Emulator.h"
#include <AK/Assertions.h>
#include <stdio.h>
#include <string.h>
//#define MEMORY_DEBUG
namespace UserspaceEmulator {
template<typename T, typename U>
inline constexpr T sign_extended_to(U value)
{
if (!(value & X86::TypeTrivia<U>::sign_bit))
return value;
return (X86::TypeTrivia<T>::mask & ~X86::TypeTrivia<U>::mask) | value;
}
SoftCPU::SoftCPU(Emulator& emulator)
: m_emulator(emulator)
{
memset(m_gpr, 0, sizeof(m_gpr));
m_segment[(int)X86::SegmentRegister::CS] = 0x18;
m_segment[(int)X86::SegmentRegister::DS] = 0x20;
m_segment[(int)X86::SegmentRegister::ES] = 0x20;
m_segment[(int)X86::SegmentRegister::SS] = 0x20;
m_segment[(int)X86::SegmentRegister::GS] = 0x28;
}
void SoftCPU::dump() const
{
printf("eax=%08x ebx=%08x ecx=%08x edx=%08x ", eax(), ebx(), ecx(), edx());
printf("ebp=%08x esp=%08x esi=%08x edi=%08x ", ebp(), esp(), esi(), edi());
printf("o=%u s=%u z=%u a=%u p=%u c=%u\n", of(), sf(), zf(), af(), pf(), cf());
}
void SoftCPU::update_code_cache()
{
auto* region = m_emulator.mmu().find_region({ cs(), eip() });
ASSERT(region);
m_cached_code_ptr = region->cacheable_ptr(eip() - region->base());
m_cached_code_end = region->cacheable_ptr(region->size());
}
u8 SoftCPU::read8()
{
if (!m_cached_code_ptr || m_cached_code_ptr >= m_cached_code_end)
update_code_cache();
u8 value = *m_cached_code_ptr;
m_cached_code_ptr += 1;
m_eip += 1;
return value;
}
u16 SoftCPU::read16()
{
if (!m_cached_code_ptr || (m_cached_code_ptr + 2) >= m_cached_code_end)
update_code_cache();
u16 value = *reinterpret_cast<const u16*>(m_cached_code_ptr);
m_cached_code_ptr += 2;
m_eip += 2;
return value;
}
u32 SoftCPU::read32()
{
if (!m_cached_code_ptr || (m_cached_code_ptr + 4) >= m_cached_code_end)
update_code_cache();
u32 value = *reinterpret_cast<const u32*>(m_cached_code_ptr);
m_cached_code_ptr += 4;
m_eip += 4;
return value;
}
u8 SoftCPU::read_memory8(X86::LogicalAddress address)
{
ASSERT(address.selector() == 0x18 || address.selector() == 0x20 || address.selector() == 0x28);
auto value = m_emulator.mmu().read8(address);
#ifdef MEMORY_DEBUG
printf("\033[36;1mread_memory8: @%08x:%08x -> %02x\033[0m\n", address.selector(), address.offset(), value);
#endif
return value;
}
u16 SoftCPU::read_memory16(X86::LogicalAddress address)
{
ASSERT(address.selector() == 0x18 || address.selector() == 0x20 || address.selector() == 0x28);
auto value = m_emulator.mmu().read16(address);
#ifdef MEMORY_DEBUG
printf("\033[36;1mread_memory16: @%04x:%08x -> %04x\033[0m\n", address.selector(), address.offset(), value);
#endif
return value;
}
u32 SoftCPU::read_memory32(X86::LogicalAddress address)
{
ASSERT(address.selector() == 0x18 || address.selector() == 0x20 || address.selector() == 0x28);
auto value = m_emulator.mmu().read32(address);
#ifdef MEMORY_DEBUG
printf("\033[36;1mread_memory32: @%04x:%08x -> %08x\033[0m\n", address.selector(), address.offset(), value);
#endif
return value;
}
void SoftCPU::write_memory8(X86::LogicalAddress address, u8 value)
{
ASSERT(address.selector() == 0x20 || address.selector() == 0x28);
#ifdef MEMORY_DEBUG
printf("\033[35;1mwrite_memory8: @%04x:%08x <- %02x\033[0m\n", address.selector(), address.offset(), value);
#endif
m_emulator.mmu().write8(address, value);
}
void SoftCPU::write_memory16(X86::LogicalAddress address, u16 value)
{
ASSERT(address.selector() == 0x20 || address.selector() == 0x28);
#ifdef MEMORY_DEBUG
printf("\033[35;1mwrite_memory16: @%04x:%08x <- %04x\033[0m\n", address.selector(), address.offset(), value);
#endif
m_emulator.mmu().write16(address, value);
}
void SoftCPU::write_memory32(X86::LogicalAddress address, u32 value)
{
ASSERT(address.selector() == 0x20 || address.selector() == 0x28);
#ifdef MEMORY_DEBUG
printf("\033[35;1mwrite_memory32: @%04x:%08x <- %08x\033[0m\n", address.selector(), address.offset(), value);
#endif
m_emulator.mmu().write32(address, value);
}
void SoftCPU::push_string(const StringView& string)
{
size_t space_to_allocate = round_up_to_power_of_two(string.length() + 1, 16);
set_esp(esp() - space_to_allocate);
m_emulator.mmu().copy_to_vm(esp(), string.characters_without_null_termination(), string.length());
m_emulator.mmu().write8({ 0x20, esp() + string.length() }, '\0');
}
void SoftCPU::push32(u32 value)
{
set_esp(esp() - sizeof(value));
write_memory32({ ss(), esp() }, value);
}
u32 SoftCPU::pop32()
{
auto value = read_memory32({ ss(), esp() });
set_esp(esp() + sizeof(value));
return value;
}
template<bool check_zf, typename Callback>
void SoftCPU::do_once_or_repeat(const X86::Instruction& insn, Callback callback)
{
if (!insn.has_rep_prefix())
return callback();
if (insn.has_address_size_override_prefix()) {
while (cx()) {
callback();
set_cx(cx() - 1);
if constexpr (check_zf) {
if (insn.rep_prefix() == X86::Prefix::REPZ && !zf())
break;
if (insn.rep_prefix() == X86::Prefix::REPNZ && zf())
break;
}
}
return;
}
while (ecx()) {
callback();
set_ecx(ecx() - 1);
if constexpr (check_zf) {
if (insn.rep_prefix() == X86::Prefix::REPZ && !zf())
break;
if (insn.rep_prefix() == X86::Prefix::REPNZ && zf())
break;
}
}
}
template<typename T>
static T op_inc(SoftCPU& cpu, T data)
{
T result = 0;
u32 new_flags = 0;
if constexpr (sizeof(T) == 4) {
asm volatile("incl %%eax\n"
: "=a"(result)
: "a"(data));
} else if constexpr (sizeof(T) == 2) {
asm volatile("incw %%ax\n"
: "=a"(result)
: "a"(data));
} else if constexpr (sizeof(T) == 1) {
asm volatile("incb %%al\n"
: "=a"(result)
: "a"(data));
}
asm volatile(
"pushf\n"
"pop %%ebx"
: "=b"(new_flags));
cpu.set_flags_oszap(new_flags);
return result;
}
template<typename T>
static T op_dec(SoftCPU& cpu, T data)
{
T result = 0;
u32 new_flags = 0;
if constexpr (sizeof(T) == 4) {
asm volatile("decl %%eax\n"
: "=a"(result)
: "a"(data));
} else if constexpr (sizeof(T) == 2) {
asm volatile("decw %%ax\n"
: "=a"(result)
: "a"(data));
} else if constexpr (sizeof(T) == 1) {
asm volatile("decb %%al\n"
: "=a"(result)
: "a"(data));
}
asm volatile(
"pushf\n"
"pop %%ebx"
: "=b"(new_flags));
cpu.set_flags_oszap(new_flags);
return result;
}
template<typename T>
static T op_xor(SoftCPU& cpu, const T& dest, const T& src)
{
T result = 0;
u32 new_flags = 0;
if constexpr (sizeof(T) == 4) {
asm volatile("xorl %%ecx, %%eax\n"
: "=a"(result)
: "a"(dest), "c"((u32)src));
} else if constexpr (sizeof(T) == 2) {
asm volatile("xor %%cx, %%ax\n"
: "=a"(result)
: "a"(dest), "c"((u16)src));
} else if constexpr (sizeof(T) == 1) {
asm volatile("xorb %%cl, %%al\n"
: "=a"(result)
: "a"(dest), "c"((u8)src));
} else {
ASSERT_NOT_REACHED();
}
asm volatile(
"pushf\n"
"pop %%ebx"
: "=b"(new_flags));
cpu.set_flags_oszpc(new_flags);
return result;
}
template<typename T>
static T op_or(SoftCPU& cpu, const T& dest, const T& src)
{
T result = 0;
u32 new_flags = 0;
if constexpr (sizeof(T) == 4) {
asm volatile("orl %%ecx, %%eax\n"
: "=a"(result)
: "a"(dest), "c"((u32)src));
} else if constexpr (sizeof(T) == 2) {
asm volatile("or %%cx, %%ax\n"
: "=a"(result)
: "a"(dest), "c"((u16)src));
} else if constexpr (sizeof(T) == 1) {
asm volatile("orb %%cl, %%al\n"
: "=a"(result)
: "a"(dest), "c"((u8)src));
} else {
ASSERT_NOT_REACHED();
}
asm volatile(
"pushf\n"
"pop %%ebx"
: "=b"(new_flags));
cpu.set_flags_oszpc(new_flags);
return result;
}
template<typename T>
static T op_sub(SoftCPU& cpu, const T& dest, const T& src)
{
T result = 0;
u32 new_flags = 0;
if constexpr (sizeof(T) == 4) {
asm volatile("subl %%ecx, %%eax\n"
: "=a"(result)
: "a"(dest), "c"((u32)src));
} else if constexpr (sizeof(T) == 2) {
asm volatile("subw %%cx, %%ax\n"
: "=a"(result)
: "a"(dest), "c"((u16)src));
} else if constexpr (sizeof(T) == 1) {
asm volatile("subb %%cl, %%al\n"
: "=a"(result)
: "a"(dest), "c"((u8)src));
} else {
ASSERT_NOT_REACHED();
}
asm volatile(
"pushf\n"
"pop %%ebx"
: "=b"(new_flags));
cpu.set_flags_oszapc(new_flags);
return result;
}
template<typename T, bool cf>
static T op_sbb_impl(SoftCPU& cpu, const T& dest, const T& src)
{
T result = 0;
u32 new_flags = 0;
if constexpr (cf)
asm volatile("stc");
else
asm volatile("clc");
if constexpr (sizeof(T) == 4) {
asm volatile("sbbl %%ecx, %%eax\n"
: "=a"(result)
: "a"(dest), "c"((u32)src));
} else if constexpr (sizeof(T) == 2) {
asm volatile("sbbw %%cx, %%ax\n"
: "=a"(result)
: "a"(dest), "c"((u16)src));
} else if constexpr (sizeof(T) == 1) {
asm volatile("sbbb %%cl, %%al\n"
: "=a"(result)
: "a"(dest), "c"((u8)src));
} else {
ASSERT_NOT_REACHED();
}
asm volatile(
"pushf\n"
"pop %%ebx"
: "=b"(new_flags));
cpu.set_flags_oszapc(new_flags);
return result;
}
template<typename T>
static T op_sbb(SoftCPU& cpu, T& dest, const T& src)
{
if (cpu.cf())
return op_sbb_impl<T, true>(cpu, dest, src);
return op_sbb_impl<T, false>(cpu, dest, src);
}
template<typename T>
static T op_add(SoftCPU& cpu, T& dest, const T& src)
{
T result = 0;
u32 new_flags = 0;
if constexpr (sizeof(T) == 4) {
asm volatile("addl %%ecx, %%eax\n"
: "=a"(result)
: "a"(dest), "c"((u32)src));
} else if constexpr (sizeof(T) == 2) {
asm volatile("addw %%cx, %%ax\n"
: "=a"(result)
: "a"(dest), "c"((u16)src));
} else if constexpr (sizeof(T) == 1) {
asm volatile("addb %%cl, %%al\n"
: "=a"(result)
: "a"(dest), "c"((u8)src));
} else {
ASSERT_NOT_REACHED();
}
asm volatile(
"pushf\n"
"pop %%ebx"
: "=b"(new_flags));
cpu.set_flags_oszapc(new_flags);
return result;
}
template<typename T, bool cf>
static T op_adc_impl(SoftCPU& cpu, T& dest, const T& src)
{
T result = 0;
u32 new_flags = 0;
if constexpr (cf)
asm volatile("stc");
else
asm volatile("clc");
if constexpr (sizeof(T) == 4) {
asm volatile("adcl %%ecx, %%eax\n"
: "=a"(result)
: "a"(dest), "c"((u32)src));
} else if constexpr (sizeof(T) == 2) {
asm volatile("adcw %%cx, %%ax\n"
: "=a"(result)
: "a"(dest), "c"((u16)src));
} else if constexpr (sizeof(T) == 1) {
asm volatile("adcb %%cl, %%al\n"
: "=a"(result)
: "a"(dest), "c"((u8)src));
} else {
ASSERT_NOT_REACHED();
}
asm volatile(
"pushf\n"
"pop %%ebx"
: "=b"(new_flags));
cpu.set_flags_oszapc(new_flags);
return result;
}
template<typename T>
static T op_adc(SoftCPU& cpu, T& dest, const T& src)
{
if (cpu.cf())
return op_adc_impl<T, true>(cpu, dest, src);
return op_adc_impl<T, false>(cpu, dest, src);
}
template<typename T>
static T op_and(SoftCPU& cpu, const T& dest, const T& src)
{
T result = 0;
u32 new_flags = 0;
if constexpr (sizeof(T) == 4) {
asm volatile("andl %%ecx, %%eax\n"
: "=a"(result)
: "a"(dest), "c"((u32)src));
} else if constexpr (sizeof(T) == 2) {
asm volatile("andw %%cx, %%ax\n"
: "=a"(result)
: "a"(dest), "c"((u16)src));
} else if constexpr (sizeof(T) == 1) {
asm volatile("andb %%cl, %%al\n"
: "=a"(result)
: "a"(dest), "c"((u8)src));
} else {
ASSERT_NOT_REACHED();
}
asm volatile(
"pushf\n"
"pop %%ebx"
: "=b"(new_flags));
cpu.set_flags_oszpc(new_flags);
return result;
}
template<typename T>
static T op_imul(SoftCPU& cpu, const T& dest, const T& src)
{
T result = 0;
u32 new_flags = 0;
if constexpr (sizeof(T) == 4) {
asm volatile("imull %%ecx, %%eax\n"
: "=a"(result)
: "a"(dest), "c"((i32)src));
} else if constexpr (sizeof(T) == 2) {
asm volatile("imulw %%cx, %%ax\n"
: "=a"(result)
: "a"(dest), "c"((i16)src));
} else {
ASSERT_NOT_REACHED();
}
asm volatile(
"pushf\n"
"pop %%ebx"
: "=b"(new_flags));
cpu.set_flags_oszapc(new_flags);
return result;
}
template<typename T>
static T op_shr(SoftCPU& cpu, T data, u8 steps)
{
if (steps == 0)
return data;
u32 result = 0;
u32 new_flags = 0;
if constexpr (sizeof(T) == 4) {
asm volatile("shrl %%cl, %%eax\n"
: "=a"(result)
: "a"(data), "c"(steps));
} else if constexpr (sizeof(T) == 2) {
asm volatile("shrw %%cl, %%ax\n"
: "=a"(result)
: "a"(data), "c"(steps));
} else if constexpr (sizeof(T) == 1) {
asm volatile("shrb %%cl, %%al\n"
: "=a"(result)
: "a"(data), "c"(steps));
}
asm volatile(
"pushf\n"
"pop %%ebx"
: "=b"(new_flags));
cpu.set_flags_oszapc(new_flags);
return result;
}
template<typename T>
static T op_shl(SoftCPU& cpu, T data, u8 steps)
{
if (steps == 0)
return data;
u32 result = 0;
u32 new_flags = 0;
if constexpr (sizeof(T) == 4) {
asm volatile("shll %%cl, %%eax\n"
: "=a"(result)
: "a"(data), "c"(steps));
} else if constexpr (sizeof(T) == 2) {
asm volatile("shlw %%cl, %%ax\n"
: "=a"(result)
: "a"(data), "c"(steps));
} else if constexpr (sizeof(T) == 1) {
asm volatile("shlb %%cl, %%al\n"
: "=a"(result)
: "a"(data), "c"(steps));
}
asm volatile(
"pushf\n"
"pop %%ebx"
: "=b"(new_flags));
cpu.set_flags_oszapc(new_flags);
return result;
}
template<bool update_dest, typename Op>
void SoftCPU::generic_AL_imm8(Op op, const X86::Instruction& insn)
{
auto dest = al();
auto src = insn.imm8();
auto result = op(*this, dest, src);
if (update_dest)
set_al(result);
}
template<bool update_dest, typename Op>
void SoftCPU::generic_AX_imm16(Op op, const X86::Instruction& insn)
{
auto dest = ax();
auto src = insn.imm16();
auto result = op(*this, dest, src);
if (update_dest)
set_ax(result);
}
template<bool update_dest, typename Op>
void SoftCPU::generic_EAX_imm32(Op op, const X86::Instruction& insn)
{
auto dest = eax();
auto src = insn.imm32();
auto result = op(*this, dest, src);
if (update_dest)
set_eax(result);
}
template<bool update_dest, typename Op>
void SoftCPU::generic_RM16_imm16(Op op, const X86::Instruction& insn)
{
auto dest = insn.modrm().read16(*this, insn);
auto src = insn.imm16();
auto result = op(*this, dest, src);
if (update_dest)
insn.modrm().write16(*this, insn, result);
}
template<bool update_dest, typename Op>
void SoftCPU::generic_RM16_imm8(Op op, const X86::Instruction& insn)
{
auto dest = insn.modrm().read16(*this, insn);
auto src = sign_extended_to<u16>(insn.imm8());
auto result = op(*this, dest, src);
if (update_dest)
insn.modrm().write16(*this, insn, result);
}
template<bool update_dest, typename Op>
void SoftCPU::generic_RM16_reg16(Op op, const X86::Instruction& insn)
{
auto dest = insn.modrm().read16(*this, insn);
auto src = gpr16(insn.reg16());
auto result = op(*this, dest, src);
if (update_dest)
insn.modrm().write16(*this, insn, result);
}
template<bool update_dest, typename Op>
void SoftCPU::generic_RM32_imm32(Op op, const X86::Instruction& insn)
{
auto dest = insn.modrm().read32(*this, insn);
auto src = insn.imm32();
auto result = op(*this, dest, src);
if (update_dest)
insn.modrm().write32(*this, insn, result);
}
template<bool update_dest, typename Op>
void SoftCPU::generic_RM32_imm8(Op op, const X86::Instruction& insn)
{
auto dest = insn.modrm().read32(*this, insn);
auto src = sign_extended_to<u32>(insn.imm8());
auto result = op(*this, dest, src);
if (update_dest)
insn.modrm().write32(*this, insn, result);
}
template<bool update_dest, typename Op>
void SoftCPU::generic_RM32_reg32(Op op, const X86::Instruction& insn)
{
auto dest = insn.modrm().read32(*this, insn);
auto src = gpr32(insn.reg32());
auto result = op(*this, dest, src);
if (update_dest)
insn.modrm().write32(*this, insn, result);
}
template<bool update_dest, typename Op>
void SoftCPU::generic_RM8_imm8(Op op, const X86::Instruction& insn)
{
auto dest = insn.modrm().read8(*this, insn);
auto src = insn.imm8();
auto result = op(*this, dest, src);
if (update_dest)
insn.modrm().write8(*this, insn, result);
}
template<bool update_dest, typename Op>
void SoftCPU::generic_RM8_reg8(Op op, const X86::Instruction& insn)
{
auto dest = insn.modrm().read8(*this, insn);
auto src = gpr8(insn.reg8());
auto result = op(*this, dest, src);
if (update_dest)
insn.modrm().write8(*this, insn, result);
}
template<bool update_dest, typename Op>
void SoftCPU::generic_reg16_RM16(Op op, const X86::Instruction& insn)
{
auto dest = gpr16(insn.reg16());
auto src = insn.modrm().read16(*this, insn);
auto result = op(*this, dest, src);
if (update_dest)
gpr16(insn.reg16()) = result;
}
template<bool update_dest, typename Op>
void SoftCPU::generic_reg32_RM32(Op op, const X86::Instruction& insn)
{
auto dest = gpr32(insn.reg32());
auto src = insn.modrm().read32(*this, insn);
auto result = op(*this, dest, src);
if (update_dest)
gpr32(insn.reg32()) = result;
}
template<bool update_dest, typename Op>
void SoftCPU::generic_reg8_RM8(Op op, const X86::Instruction& insn)
{
auto dest = gpr8(insn.reg8());
auto src = insn.modrm().read8(*this, insn);
auto result = op(*this, dest, src);
if (update_dest)
gpr8(insn.reg8()) = result;
}
void SoftCPU::AAA(const X86::Instruction&) { TODO(); }
void SoftCPU::AAD(const X86::Instruction&) { TODO(); }
void SoftCPU::AAM(const X86::Instruction&) { TODO(); }
void SoftCPU::AAS(const X86::Instruction&) { TODO(); }
void SoftCPU::ARPL(const X86::Instruction&) { TODO(); }
void SoftCPU::BOUND(const X86::Instruction&) { TODO(); }
void SoftCPU::BSF_reg16_RM16(const X86::Instruction&) { TODO(); }
void SoftCPU::BSF_reg32_RM32(const X86::Instruction&) { TODO(); }
void SoftCPU::BSR_reg16_RM16(const X86::Instruction&) { TODO(); }
void SoftCPU::BSR_reg32_RM32(const X86::Instruction&) { TODO(); }
void SoftCPU::BSWAP_reg32(const X86::Instruction&) { TODO(); }
void SoftCPU::BTC_RM16_imm8(const X86::Instruction&) { TODO(); }
void SoftCPU::BTC_RM16_reg16(const X86::Instruction&) { TODO(); }
void SoftCPU::BTC_RM32_imm8(const X86::Instruction&) { TODO(); }
void SoftCPU::BTC_RM32_reg32(const X86::Instruction&) { TODO(); }
void SoftCPU::BTR_RM16_imm8(const X86::Instruction&) { TODO(); }
void SoftCPU::BTR_RM16_reg16(const X86::Instruction&) { TODO(); }
void SoftCPU::BTR_RM32_imm8(const X86::Instruction&) { TODO(); }
void SoftCPU::BTR_RM32_reg32(const X86::Instruction&) { TODO(); }
void SoftCPU::BTS_RM16_imm8(const X86::Instruction&) { TODO(); }
void SoftCPU::BTS_RM16_reg16(const X86::Instruction&) { TODO(); }
void SoftCPU::BTS_RM32_imm8(const X86::Instruction&) { TODO(); }
void SoftCPU::BTS_RM32_reg32(const X86::Instruction&) { TODO(); }
void SoftCPU::BT_RM16_imm8(const X86::Instruction&) { TODO(); }
void SoftCPU::BT_RM16_reg16(const X86::Instruction&) { TODO(); }
void SoftCPU::BT_RM32_imm8(const X86::Instruction&) { TODO(); }
void SoftCPU::BT_RM32_reg32(const X86::Instruction&) { TODO(); }
void SoftCPU::CALL_FAR_mem16(const X86::Instruction&) { TODO(); }
void SoftCPU::CALL_FAR_mem32(const X86::Instruction&) { TODO(); }
void SoftCPU::CALL_RM16(const X86::Instruction&) { TODO(); }
void SoftCPU::CALL_RM32(const X86::Instruction& insn)
{
push32(eip());
set_eip(insn.modrm().read32(*this, insn));
}
void SoftCPU::CALL_imm16(const X86::Instruction&) { TODO(); }
void SoftCPU::CALL_imm16_imm16(const X86::Instruction&) { TODO(); }
void SoftCPU::CALL_imm16_imm32(const X86::Instruction&) { TODO(); }
void SoftCPU::CALL_imm32(const X86::Instruction& insn)
{
push32(eip());
set_eip(eip() + (i32)insn.imm32());
}
void SoftCPU::CBW(const X86::Instruction&) { TODO(); }
void SoftCPU::CDQ(const X86::Instruction&) { TODO(); }
void SoftCPU::CLC(const X86::Instruction&)
{
set_cf(false);
}
void SoftCPU::CLD(const X86::Instruction&)
{
set_df(false);
}
void SoftCPU::CLI(const X86::Instruction&) { TODO(); }
void SoftCPU::CLTS(const X86::Instruction&) { TODO(); }
void SoftCPU::CMC(const X86::Instruction&) { TODO(); }
void SoftCPU::CMOVcc_reg16_RM16(const X86::Instruction& insn)
{
if (evaluate_condition(insn.cc()))
gpr16(insn.reg16()) = insn.modrm().read16(*this, insn);
}
void SoftCPU::CMOVcc_reg32_RM32(const X86::Instruction& insn)
{
if (evaluate_condition(insn.cc()))
gpr32(insn.reg32()) = insn.modrm().read32(*this, insn);
}
void SoftCPU::CMPSB(const X86::Instruction&) { TODO(); }
void SoftCPU::CMPSD(const X86::Instruction&) { TODO(); }
void SoftCPU::CMPSW(const X86::Instruction&) { TODO(); }
void SoftCPU::CMPXCHG_RM16_reg16(const X86::Instruction& insn)
{
auto current = insn.modrm().read16(*this, insn);
if (current == eax()) {
set_zf(true);
insn.modrm().write16(*this, insn, gpr16(insn.reg16()));
} else {
set_zf(false);
set_eax(current);
}
}
void SoftCPU::CMPXCHG_RM32_reg32(const X86::Instruction& insn)
{
auto current = insn.modrm().read32(*this, insn);
if (current == eax()) {
set_zf(true);
insn.modrm().write32(*this, insn, gpr32(insn.reg32()));
} else {
set_zf(false);
set_eax(current);
}
}
void SoftCPU::CMPXCHG_RM8_reg8(const X86::Instruction& insn)
{
auto current = insn.modrm().read8(*this, insn);
if (current == eax()) {
set_zf(true);
insn.modrm().write8(*this, insn, gpr8(insn.reg8()));
} else {
set_zf(false);
set_eax(current);
}
}
void SoftCPU::CPUID(const X86::Instruction&) { TODO(); }
void SoftCPU::CWD(const X86::Instruction&) { TODO(); }
void SoftCPU::CWDE(const X86::Instruction&) { TODO(); }
void SoftCPU::DAA(const X86::Instruction&) { TODO(); }
void SoftCPU::DAS(const X86::Instruction&) { TODO(); }
void SoftCPU::DEC_RM16(const X86::Instruction& insn)
{
insn.modrm().write16(*this, insn, op_dec(*this, insn.modrm().read16(*this, insn)));
}
void SoftCPU::DEC_RM32(const X86::Instruction& insn)
{
insn.modrm().write32(*this, insn, op_dec(*this, insn.modrm().read32(*this, insn)));
}
void SoftCPU::DEC_RM8(const X86::Instruction& insn)
{
insn.modrm().write8(*this, insn, op_dec(*this, insn.modrm().read8(*this, insn)));
}
void SoftCPU::DEC_reg16(const X86::Instruction& insn)
{
gpr16(insn.reg16()) = op_dec(*this, gpr16(insn.reg16()));
}
void SoftCPU::DEC_reg32(const X86::Instruction& insn)
{
gpr32(insn.reg32()) = op_dec(*this, gpr32(insn.reg32()));
}
void SoftCPU::DIV_RM16(const X86::Instruction&) { TODO(); }
void SoftCPU::DIV_RM32(const X86::Instruction& insn)
{
auto divisor = insn.modrm().read32(*this, insn);
if (divisor == 0) {
warn() << "Divide by zero";
TODO();
}
u64 dividend = ((u64)edx() << 32) | eax();
auto result = dividend / divisor;
if (result > NumericLimits<u32>::max()) {
warn() << "Divide overflow";
TODO();
}
set_eax(result);
set_edx(dividend % divisor);
}
void SoftCPU::DIV_RM8(const X86::Instruction&) { TODO(); }
void SoftCPU::ENTER16(const X86::Instruction&) { TODO(); }
void SoftCPU::ENTER32(const X86::Instruction&) { TODO(); }
void SoftCPU::ESCAPE(const X86::Instruction&) { TODO(); }
void SoftCPU::HLT(const X86::Instruction&) { TODO(); }
void SoftCPU::IDIV_RM16(const X86::Instruction&) { TODO(); }
void SoftCPU::IDIV_RM32(const X86::Instruction&) { TODO(); }
void SoftCPU::IDIV_RM8(const X86::Instruction&) { TODO(); }
void SoftCPU::IMUL_RM16(const X86::Instruction&) { TODO(); }
void SoftCPU::IMUL_RM32(const X86::Instruction&) { TODO(); }
void SoftCPU::IMUL_RM8(const X86::Instruction&) { TODO(); }
void SoftCPU::IMUL_reg16_RM16(const X86::Instruction& insn)
{
gpr16(insn.reg16()) = op_imul<i16>(*this, gpr16(insn.reg16()), insn.modrm().read16(*this, insn));
}
void SoftCPU::IMUL_reg16_RM16_imm16(const X86::Instruction& insn)
{
gpr16(insn.reg16()) = op_imul<i16>(*this, insn.modrm().read16(*this, insn), insn.imm16());
}
void SoftCPU::IMUL_reg16_RM16_imm8(const X86::Instruction& insn)
{
gpr16(insn.reg16()) = op_imul<i16>(*this, insn.modrm().read16(*this, insn), sign_extended_to<i16>(insn.imm8()));
}
void SoftCPU::IMUL_reg32_RM32(const X86::Instruction& insn)
{
gpr32(insn.reg32()) = op_imul<i32>(*this, gpr32(insn.reg32()), insn.modrm().read32(*this, insn));
}
void SoftCPU::IMUL_reg32_RM32_imm32(const X86::Instruction& insn)
{
gpr32(insn.reg32()) = op_imul<i32>(*this, insn.modrm().read32(*this, insn), insn.imm32());
}
void SoftCPU::IMUL_reg32_RM32_imm8(const X86::Instruction& insn)
{
gpr32(insn.reg32()) = op_imul<i32>(*this, insn.modrm().read32(*this, insn), sign_extended_to<i32>(insn.imm8()));
}
void SoftCPU::INC_RM16(const X86::Instruction& insn)
{
insn.modrm().write16(*this, insn, op_inc(*this, insn.modrm().read16(*this, insn)));
}
void SoftCPU::INC_RM32(const X86::Instruction& insn)
{
insn.modrm().write32(*this, insn, op_inc(*this, insn.modrm().read32(*this, insn)));
}
void SoftCPU::INC_RM8(const X86::Instruction& insn)
{
insn.modrm().write8(*this, insn, op_inc(*this, insn.modrm().read8(*this, insn)));
}
void SoftCPU::INC_reg16(const X86::Instruction& insn)
{
gpr16(insn.reg16()) = op_inc(*this, gpr16(insn.reg16()));
}
void SoftCPU::INC_reg32(const X86::Instruction& insn)
{
gpr32(insn.reg32()) = op_inc(*this, gpr32(insn.reg32()));
}
void SoftCPU::INSB(const X86::Instruction&) { TODO(); }
void SoftCPU::INSD(const X86::Instruction&) { TODO(); }
void SoftCPU::INSW(const X86::Instruction&) { TODO(); }
void SoftCPU::INT3(const X86::Instruction&) { TODO(); }
void SoftCPU::INTO(const X86::Instruction&) { TODO(); }
void SoftCPU::INT_imm8(const X86::Instruction& insn)
{
ASSERT(insn.imm8() == 0x82);
set_eax(m_emulator.virt_syscall(eax(), edx(), ecx(), ebx()));
}
void SoftCPU::INVLPG(const X86::Instruction&) { TODO(); }
void SoftCPU::IN_AL_DX(const X86::Instruction&) { TODO(); }
void SoftCPU::IN_AL_imm8(const X86::Instruction&) { TODO(); }
void SoftCPU::IN_AX_DX(const X86::Instruction&) { TODO(); }
void SoftCPU::IN_AX_imm8(const X86::Instruction&) { TODO(); }
void SoftCPU::IN_EAX_DX(const X86::Instruction&) { TODO(); }
void SoftCPU::IN_EAX_imm8(const X86::Instruction&) { TODO(); }
void SoftCPU::IRET(const X86::Instruction&) { TODO(); }
void SoftCPU::JCXZ_imm8(const X86::Instruction&) { TODO(); }
void SoftCPU::JMP_FAR_mem16(const X86::Instruction&) { TODO(); }
void SoftCPU::JMP_FAR_mem32(const X86::Instruction&) { TODO(); }
void SoftCPU::JMP_RM16(const X86::Instruction&) { TODO(); }
void SoftCPU::JMP_RM32(const X86::Instruction& insn)
{
set_eip(insn.modrm().read32(*this, insn));
}
void SoftCPU::JMP_imm16(const X86::Instruction& insn)
{
set_eip(eip() + (i16)insn.imm16());
}
void SoftCPU::JMP_imm16_imm16(const X86::Instruction&) { TODO(); }
void SoftCPU::JMP_imm16_imm32(const X86::Instruction&) { TODO(); }
void SoftCPU::JMP_imm32(const X86::Instruction& insn)
{
set_eip(eip() + (i32)insn.imm32());
}
void SoftCPU::JMP_short_imm8(const X86::Instruction& insn)
{
set_eip(eip() + (i8)insn.imm8());
}
void SoftCPU::Jcc_NEAR_imm(const X86::Instruction& insn)
{
if (evaluate_condition(insn.cc()))
set_eip(eip() + (i32)insn.imm32());
}
void SoftCPU::Jcc_imm8(const X86::Instruction& insn)
{
if (evaluate_condition(insn.cc()))
set_eip(eip() + (i8)insn.imm8());
}
void SoftCPU::LAHF(const X86::Instruction&) { TODO(); }
void SoftCPU::LAR_reg16_RM16(const X86::Instruction&) { TODO(); }
void SoftCPU::LAR_reg32_RM32(const X86::Instruction&) { TODO(); }
void SoftCPU::LDS_reg16_mem16(const X86::Instruction&) { TODO(); }
void SoftCPU::LDS_reg32_mem32(const X86::Instruction&) { TODO(); }
void SoftCPU::LEAVE16(const X86::Instruction&) { TODO(); }
void SoftCPU::LEAVE32(const X86::Instruction&)
{
u32 new_ebp = read_memory32({ ss(), ebp() });
set_esp(ebp() + 4);
set_ebp(new_ebp);
}
void SoftCPU::LEA_reg16_mem16(const X86::Instruction& insn)
{
gpr16(insn.reg16()) = insn.modrm().resolve(*this, insn.segment_prefix()).offset();
}
void SoftCPU::LEA_reg32_mem32(const X86::Instruction& insn)
{
gpr32(insn.reg32()) = insn.modrm().resolve(*this, insn.segment_prefix()).offset();
}
void SoftCPU::LES_reg16_mem16(const X86::Instruction&) { TODO(); }
void SoftCPU::LES_reg32_mem32(const X86::Instruction&) { TODO(); }
void SoftCPU::LFS_reg16_mem16(const X86::Instruction&) { TODO(); }
void SoftCPU::LFS_reg32_mem32(const X86::Instruction&) { TODO(); }
void SoftCPU::LGDT(const X86::Instruction&) { TODO(); }
void SoftCPU::LGS_reg16_mem16(const X86::Instruction&) { TODO(); }
void SoftCPU::LGS_reg32_mem32(const X86::Instruction&) { TODO(); }
void SoftCPU::LIDT(const X86::Instruction&) { TODO(); }
void SoftCPU::LLDT_RM16(const X86::Instruction&) { TODO(); }
void SoftCPU::LMSW_RM16(const X86::Instruction&) { TODO(); }
void SoftCPU::LODSB(const X86::Instruction&) { TODO(); }
void SoftCPU::LODSD(const X86::Instruction&) { TODO(); }
void SoftCPU::LODSW(const X86::Instruction&) { TODO(); }
void SoftCPU::LOOPNZ_imm8(const X86::Instruction&) { TODO(); }
void SoftCPU::LOOPZ_imm8(const X86::Instruction&) { TODO(); }
void SoftCPU::LOOP_imm8(const X86::Instruction&) { TODO(); }
void SoftCPU::LSL_reg16_RM16(const X86::Instruction&) { TODO(); }
void SoftCPU::LSL_reg32_RM32(const X86::Instruction&) { TODO(); }
void SoftCPU::LSS_reg16_mem16(const X86::Instruction&) { TODO(); }
void SoftCPU::LSS_reg32_mem32(const X86::Instruction&) { TODO(); }
void SoftCPU::LTR_RM16(const X86::Instruction&) { TODO(); }
void SoftCPU::MOVSB(const X86::Instruction& insn)
{
auto src_segment = segment(insn.segment_prefix().value_or(X86::SegmentRegister::DS));
if (insn.has_address_size_override_prefix()) {
do_once_or_repeat<false>(insn, [&] {
auto src = read_memory8({ src_segment, si() });
write_memory8({ es(), di() }, src);
set_di(di() + (df() ? -1 : 1));
set_si(si() + (df() ? -1 : 1));
});
} else {
do_once_or_repeat<false>(insn, [&] {
auto src = read_memory8({ src_segment, esi() });
write_memory8({ es(), edi() }, src);
set_edi(edi() + (df() ? -1 : 1));
set_esi(esi() + (df() ? -1 : 1));
});
}
}
void SoftCPU::MOVSD(const X86::Instruction& insn)
{
auto src_segment = segment(insn.segment_prefix().value_or(X86::SegmentRegister::DS));
if (insn.has_address_size_override_prefix()) {
do_once_or_repeat<false>(insn, [&] {
auto src = read_memory32({ src_segment, si() });
write_memory32({ es(), di() }, src);
set_di(di() + (df() ? -4 : 4));
set_si(si() + (df() ? -4 : 4));
});
} else {
do_once_or_repeat<false>(insn, [&] {
auto src = read_memory32({ src_segment, esi() });
write_memory32({ es(), edi() }, src);
set_edi(edi() + (df() ? -4 : 4));
set_esi(esi() + (df() ? -4 : 4));
});
}
}
void SoftCPU::MOVSW(const X86::Instruction& insn)
{
auto src_segment = segment(insn.segment_prefix().value_or(X86::SegmentRegister::DS));
if (insn.has_address_size_override_prefix()) {
do_once_or_repeat<false>(insn, [&] {
auto src = read_memory16({ src_segment, si() });
write_memory16({ es(), di() }, src);
set_di(di() + (df() ? -2 : 2));
set_si(si() + (df() ? -2 : 2));
});
} else {
do_once_or_repeat<false>(insn, [&] {
auto src = read_memory16({ src_segment, esi() });
write_memory16({ es(), edi() }, src);
set_edi(edi() + (df() ? -2 : 2));
set_esi(esi() + (df() ? -2 : 2));
});
}
}
void SoftCPU::MOVSX_reg16_RM8(const X86::Instruction& insn)
{
gpr16(insn.reg16()) = sign_extended_to<u16>(insn.modrm().read8(*this, insn));
}
void SoftCPU::MOVSX_reg32_RM16(const X86::Instruction& insn)
{
gpr32(insn.reg32()) = sign_extended_to<u32>(insn.modrm().read16(*this, insn));
}
void SoftCPU::MOVSX_reg32_RM8(const X86::Instruction& insn)
{
gpr32(insn.reg32()) = sign_extended_to<u32>(insn.modrm().read8(*this, insn));
}
void SoftCPU::MOVZX_reg16_RM8(const X86::Instruction& insn)
{
gpr16(insn.reg16()) = insn.modrm().read8(*this, insn);
}
void SoftCPU::MOVZX_reg32_RM16(const X86::Instruction& insn)
{
gpr32(insn.reg32()) = insn.modrm().read16(*this, insn);
}
void SoftCPU::MOVZX_reg32_RM8(const X86::Instruction& insn)
{
gpr32(insn.reg32()) = insn.modrm().read8(*this, insn);
}
void SoftCPU::MOV_AL_moff8(const X86::Instruction& insn)
{
set_al(read_memory8({ segment(insn.segment_prefix().value_or(X86::SegmentRegister::DS)), insn.imm_address() }));
}
void SoftCPU::MOV_AX_moff16(const X86::Instruction& insn)
{
set_ax(read_memory16({ segment(insn.segment_prefix().value_or(X86::SegmentRegister::DS)), insn.imm_address() }));
}
void SoftCPU::MOV_CR_reg32(const X86::Instruction&) { TODO(); }
void SoftCPU::MOV_DR_reg32(const X86::Instruction&) { TODO(); }
void SoftCPU::MOV_EAX_moff32(const X86::Instruction& insn)
{
set_eax(read_memory32({ segment(insn.segment_prefix().value_or(X86::SegmentRegister::DS)), insn.imm_address() }));
}
void SoftCPU::MOV_RM16_imm16(const X86::Instruction& insn)
{
insn.modrm().write16(*this, insn, insn.imm16());
}
void SoftCPU::MOV_RM16_reg16(const X86::Instruction& insn)
{
insn.modrm().write16(*this, insn, gpr16(insn.reg16()));
}
void SoftCPU::MOV_RM16_seg(const X86::Instruction&) { TODO(); }
void SoftCPU::MOV_RM32_imm32(const X86::Instruction& insn)
{
insn.modrm().write32(*this, insn, insn.imm32());
}
void SoftCPU::MOV_RM32_reg32(const X86::Instruction& insn)
{
insn.modrm().write32(*this, insn, gpr32(insn.reg32()));
}
void SoftCPU::MOV_RM8_imm8(const X86::Instruction& insn)
{
insn.modrm().write8(*this, insn, insn.imm8());
}
void SoftCPU::MOV_RM8_reg8(const X86::Instruction& insn)
{
insn.modrm().write8(*this, insn, gpr8(insn.reg8()));
}
void SoftCPU::MOV_moff16_AX(const X86::Instruction& insn)
{
write_memory16({ segment(insn.segment_prefix().value_or(X86::SegmentRegister::DS)), insn.imm_address() }, ax());
}
void SoftCPU::MOV_moff32_EAX(const X86::Instruction& insn)
{
write_memory32({ segment(insn.segment_prefix().value_or(X86::SegmentRegister::DS)), insn.imm_address() }, eax());
}
void SoftCPU::MOV_moff8_AL(const X86::Instruction& insn)
{
write_memory8({ segment(insn.segment_prefix().value_or(X86::SegmentRegister::DS)), insn.imm_address() }, al());
}
void SoftCPU::MOV_reg16_RM16(const X86::Instruction& insn)
{
gpr16(insn.reg16()) = insn.modrm().read16(*this, insn);
}
void SoftCPU::MOV_reg16_imm16(const X86::Instruction& insn)
{
gpr16(insn.reg16()) = insn.imm16();
}
void SoftCPU::MOV_reg32_CR(const X86::Instruction&) { TODO(); }
void SoftCPU::MOV_reg32_DR(const X86::Instruction&) { TODO(); }
void SoftCPU::MOV_reg32_RM32(const X86::Instruction& insn)
{
gpr32(insn.reg32()) = insn.modrm().read32(*this, insn);
}
void SoftCPU::MOV_reg32_imm32(const X86::Instruction& insn)
{
gpr32(insn.reg32()) = insn.imm32();
}
void SoftCPU::MOV_reg8_RM8(const X86::Instruction& insn)
{
gpr8(insn.reg8()) = insn.modrm().read8(*this, insn);
}
void SoftCPU::MOV_reg8_imm8(const X86::Instruction& insn)
{
gpr8(insn.reg8()) = insn.imm8();
}
void SoftCPU::MOV_seg_RM16(const X86::Instruction&) { TODO(); }
void SoftCPU::MOV_seg_RM32(const X86::Instruction&) { TODO(); }
void SoftCPU::MUL_RM16(const X86::Instruction&) { TODO(); }
void SoftCPU::MUL_RM32(const X86::Instruction&) { TODO(); }
void SoftCPU::MUL_RM8(const X86::Instruction&) { TODO(); }
void SoftCPU::NEG_RM16(const X86::Instruction& insn)
{
insn.modrm().write16(*this, insn, op_sub<u16>(*this, 0, insn.modrm().read16(*this, insn)));
}
void SoftCPU::NEG_RM32(const X86::Instruction& insn)
{
insn.modrm().write32(*this, insn, op_sub<u32>(*this, 0, insn.modrm().read32(*this, insn)));
}
void SoftCPU::NEG_RM8(const X86::Instruction& insn)
{
insn.modrm().write8(*this, insn, op_sub<u8>(*this, 0, insn.modrm().read8(*this, insn)));
}
void SoftCPU::NOP(const X86::Instruction&)
{
}
void SoftCPU::NOT_RM16(const X86::Instruction& insn)
{
insn.modrm().write16(*this, insn, ~insn.modrm().read16(*this, insn));
}
void SoftCPU::NOT_RM32(const X86::Instruction& insn)
{
insn.modrm().write32(*this, insn, ~insn.modrm().read32(*this, insn));
}
void SoftCPU::NOT_RM8(const X86::Instruction& insn)
{
insn.modrm().write8(*this, insn, ~insn.modrm().read8(*this, insn));
}
void SoftCPU::OUTSB(const X86::Instruction&) { TODO(); }
void SoftCPU::OUTSD(const X86::Instruction&) { TODO(); }
void SoftCPU::OUTSW(const X86::Instruction&) { TODO(); }
void SoftCPU::OUT_DX_AL(const X86::Instruction&) { TODO(); }
void SoftCPU::OUT_DX_AX(const X86::Instruction&) { TODO(); }
void SoftCPU::OUT_DX_EAX(const X86::Instruction&) { TODO(); }
void SoftCPU::OUT_imm8_AL(const X86::Instruction&) { TODO(); }
void SoftCPU::OUT_imm8_AX(const X86::Instruction&) { TODO(); }
void SoftCPU::OUT_imm8_EAX(const X86::Instruction&) { TODO(); }
void SoftCPU::PADDB_mm1_mm2m64(const X86::Instruction&) { TODO(); }
void SoftCPU::PADDW_mm1_mm2m64(const X86::Instruction&) { TODO(); }
void SoftCPU::PADDD_mm1_mm2m64(const X86::Instruction&) { TODO(); }
void SoftCPU::POPA(const X86::Instruction&) { TODO(); }
void SoftCPU::POPAD(const X86::Instruction&) { TODO(); }
void SoftCPU::POPF(const X86::Instruction&) { TODO(); }
void SoftCPU::POPFD(const X86::Instruction&)
{
m_eflags &= ~0x00fcffff;
m_eflags |= pop32() & 0x00fcffff;
}
void SoftCPU::POP_DS(const X86::Instruction&) { TODO(); }
void SoftCPU::POP_ES(const X86::Instruction&) { TODO(); }
void SoftCPU::POP_FS(const X86::Instruction&) { TODO(); }
void SoftCPU::POP_GS(const X86::Instruction&) { TODO(); }
void SoftCPU::POP_RM16(const X86::Instruction&) { TODO(); }
void SoftCPU::POP_RM32(const X86::Instruction&) { TODO(); }
void SoftCPU::POP_SS(const X86::Instruction&) { TODO(); }
void SoftCPU::POP_reg16(const X86::Instruction&) { TODO(); }
void SoftCPU::POP_reg32(const X86::Instruction& insn)
{
gpr32(insn.reg32()) = pop32();
}
void SoftCPU::PUSHA(const X86::Instruction&) { TODO(); }
void SoftCPU::PUSHAD(const X86::Instruction&) { TODO(); }
void SoftCPU::PUSHF(const X86::Instruction&) { TODO(); }
void SoftCPU::PUSHFD(const X86::Instruction&)
{
push32(m_eflags & 0x00fcffff);
}
void SoftCPU::PUSH_CS(const X86::Instruction&) { TODO(); }
void SoftCPU::PUSH_DS(const X86::Instruction&) { TODO(); }
void SoftCPU::PUSH_ES(const X86::Instruction&) { TODO(); }
void SoftCPU::PUSH_FS(const X86::Instruction&) { TODO(); }
void SoftCPU::PUSH_GS(const X86::Instruction&) { TODO(); }
void SoftCPU::PUSH_RM16(const X86::Instruction&) { TODO(); }
void SoftCPU::PUSH_RM32(const X86::Instruction& insn)
{
push32(insn.modrm().read32(*this, insn));
}
void SoftCPU::PUSH_SP_8086_80186(const X86::Instruction&) { TODO(); }
void SoftCPU::PUSH_SS(const X86::Instruction&) { TODO(); }
void SoftCPU::PUSH_imm16(const X86::Instruction&) { TODO(); }
void SoftCPU::PUSH_imm32(const X86::Instruction& insn)
{
push32(insn.imm32());
}
void SoftCPU::PUSH_imm8(const X86::Instruction& insn)
{
ASSERT(!insn.has_operand_size_override_prefix());
push32(sign_extended_to<i32>(insn.imm8()));
}
void SoftCPU::PUSH_reg16(const X86::Instruction&) { TODO(); }
void SoftCPU::PUSH_reg32(const X86::Instruction& insn)
{
push32(gpr32(insn.reg32()));
}
void SoftCPU::RCL_RM16_1(const X86::Instruction&) { TODO(); }
void SoftCPU::RCL_RM16_CL(const X86::Instruction&) { TODO(); }
void SoftCPU::RCL_RM16_imm8(const X86::Instruction&) { TODO(); }
void SoftCPU::RCL_RM32_1(const X86::Instruction&) { TODO(); }
void SoftCPU::RCL_RM32_CL(const X86::Instruction&) { TODO(); }
void SoftCPU::RCL_RM32_imm8(const X86::Instruction&) { TODO(); }
void SoftCPU::RCL_RM8_1(const X86::Instruction&) { TODO(); }
void SoftCPU::RCL_RM8_CL(const X86::Instruction&) { TODO(); }
void SoftCPU::RCL_RM8_imm8(const X86::Instruction&) { TODO(); }
void SoftCPU::RCR_RM16_1(const X86::Instruction&) { TODO(); }
void SoftCPU::RCR_RM16_CL(const X86::Instruction&) { TODO(); }
void SoftCPU::RCR_RM16_imm8(const X86::Instruction&) { TODO(); }
void SoftCPU::RCR_RM32_1(const X86::Instruction&) { TODO(); }
void SoftCPU::RCR_RM32_CL(const X86::Instruction&) { TODO(); }
void SoftCPU::RCR_RM32_imm8(const X86::Instruction&) { TODO(); }
void SoftCPU::RCR_RM8_1(const X86::Instruction&) { TODO(); }
void SoftCPU::RCR_RM8_CL(const X86::Instruction&) { TODO(); }
void SoftCPU::RCR_RM8_imm8(const X86::Instruction&) { TODO(); }
void SoftCPU::RDTSC(const X86::Instruction&) { TODO(); }
void SoftCPU::RET(const X86::Instruction& insn)
{
ASSERT(!insn.has_operand_size_override_prefix());
set_eip(pop32());
}
void SoftCPU::RETF(const X86::Instruction&) { TODO(); }
void SoftCPU::RETF_imm16(const X86::Instruction&) { TODO(); }
void SoftCPU::RET_imm16(const X86::Instruction& insn)
{
ASSERT(!insn.has_operand_size_override_prefix());
set_eip(pop32());
set_esp(esp() + insn.imm16());
}
void SoftCPU::ROL_RM16_1(const X86::Instruction&) { TODO(); }
void SoftCPU::ROL_RM16_CL(const X86::Instruction&) { TODO(); }
void SoftCPU::ROL_RM16_imm8(const X86::Instruction&) { TODO(); }
void SoftCPU::ROL_RM32_1(const X86::Instruction&) { TODO(); }
void SoftCPU::ROL_RM32_CL(const X86::Instruction&) { TODO(); }
void SoftCPU::ROL_RM32_imm8(const X86::Instruction&) { TODO(); }
void SoftCPU::ROL_RM8_1(const X86::Instruction&) { TODO(); }
void SoftCPU::ROL_RM8_CL(const X86::Instruction&) { TODO(); }
void SoftCPU::ROL_RM8_imm8(const X86::Instruction&) { TODO(); }
void SoftCPU::ROR_RM16_1(const X86::Instruction&) { TODO(); }
void SoftCPU::ROR_RM16_CL(const X86::Instruction&) { TODO(); }
void SoftCPU::ROR_RM16_imm8(const X86::Instruction&) { TODO(); }
void SoftCPU::ROR_RM32_1(const X86::Instruction&) { TODO(); }
void SoftCPU::ROR_RM32_CL(const X86::Instruction&) { TODO(); }
void SoftCPU::ROR_RM32_imm8(const X86::Instruction&) { TODO(); }
void SoftCPU::ROR_RM8_1(const X86::Instruction&) { TODO(); }
void SoftCPU::ROR_RM8_CL(const X86::Instruction&) { TODO(); }
void SoftCPU::ROR_RM8_imm8(const X86::Instruction&) { TODO(); }
void SoftCPU::SAHF(const X86::Instruction&) { TODO(); }
void SoftCPU::SALC(const X86::Instruction&) { TODO(); }
template<typename T>
static T op_sar(SoftCPU& cpu, T data, u8 steps)
{
if (steps == 0)
return data;
u32 result = 0;
u32 new_flags = 0;
if constexpr (sizeof(T) == 4) {
asm volatile("sarl %%cl, %%eax\n"
: "=a"(result)
: "a"(data), "c"(steps));
} else if constexpr (sizeof(T) == 2) {
asm volatile("sarw %%cl, %%ax\n"
: "=a"(result)
: "a"(data), "c"(steps));
} else if constexpr (sizeof(T) == 1) {
asm volatile("sarb %%cl, %%al\n"
: "=a"(result)
: "a"(data), "c"(steps));
}
asm volatile(
"pushf\n"
"pop %%ebx"
: "=b"(new_flags));
cpu.set_flags_oszapc(new_flags);
return result;
}
void SoftCPU::SAR_RM16_1(const X86::Instruction& insn)
{
auto data = insn.modrm().read16(*this, insn);
insn.modrm().write16(*this, insn, op_sar(*this, data, 1));
}
void SoftCPU::SAR_RM16_CL(const X86::Instruction& insn)
{
auto data = insn.modrm().read16(*this, insn);
insn.modrm().write16(*this, insn, op_sar(*this, data, cl()));
}
void SoftCPU::SAR_RM16_imm8(const X86::Instruction& insn)
{
auto data = insn.modrm().read16(*this, insn);
insn.modrm().write16(*this, insn, op_sar(*this, data, insn.imm8()));
}
void SoftCPU::SAR_RM32_1(const X86::Instruction& insn)
{
auto data = insn.modrm().read32(*this, insn);
insn.modrm().write32(*this, insn, op_sar(*this, data, 1));
}
void SoftCPU::SAR_RM32_CL(const X86::Instruction& insn)
{
auto data = insn.modrm().read32(*this, insn);
insn.modrm().write32(*this, insn, op_sar(*this, data, cl()));
}
void SoftCPU::SAR_RM32_imm8(const X86::Instruction& insn)
{
auto data = insn.modrm().read32(*this, insn);
insn.modrm().write32(*this, insn, op_sar(*this, data, insn.imm8()));
}
void SoftCPU::SAR_RM8_1(const X86::Instruction& insn)
{
auto data = insn.modrm().read8(*this, insn);
insn.modrm().write8(*this, insn, op_sar(*this, data, 1));
}
void SoftCPU::SAR_RM8_CL(const X86::Instruction& insn)
{
auto data = insn.modrm().read8(*this, insn);
insn.modrm().write8(*this, insn, op_sar(*this, data, cl()));
}
void SoftCPU::SAR_RM8_imm8(const X86::Instruction& insn)
{
auto data = insn.modrm().read8(*this, insn);
insn.modrm().write8(*this, insn, op_sar(*this, data, insn.imm8()));
}
void SoftCPU::SCASB(const X86::Instruction&) { TODO(); }
void SoftCPU::SCASD(const X86::Instruction&) { TODO(); }
void SoftCPU::SCASW(const X86::Instruction&) { TODO(); }
void SoftCPU::SETcc_RM8(const X86::Instruction& insn)
{
insn.modrm().write8(*this, insn, evaluate_condition(insn.cc()));
}
void SoftCPU::SGDT(const X86::Instruction&) { TODO(); }
void SoftCPU::SHLD_RM16_reg16_CL(const X86::Instruction&) { TODO(); }
void SoftCPU::SHLD_RM16_reg16_imm8(const X86::Instruction&) { TODO(); }
void SoftCPU::SHLD_RM32_reg32_CL(const X86::Instruction&) { TODO(); }
void SoftCPU::SHLD_RM32_reg32_imm8(const X86::Instruction&) { TODO(); }
void SoftCPU::SHL_RM16_1(const X86::Instruction& insn)
{
auto data = insn.modrm().read16(*this, insn);
insn.modrm().write16(*this, insn, op_shl(*this, data, 1));
}
void SoftCPU::SHL_RM16_CL(const X86::Instruction& insn)
{
auto data = insn.modrm().read16(*this, insn);
insn.modrm().write16(*this, insn, op_shl(*this, data, cl()));
}
void SoftCPU::SHL_RM16_imm8(const X86::Instruction& insn)
{
auto data = insn.modrm().read16(*this, insn);
insn.modrm().write16(*this, insn, op_shl(*this, data, insn.imm8()));
}
void SoftCPU::SHL_RM32_1(const X86::Instruction& insn)
{
auto data = insn.modrm().read32(*this, insn);
insn.modrm().write32(*this, insn, op_shl(*this, data, 1));
}
void SoftCPU::SHL_RM32_CL(const X86::Instruction& insn)
{
auto data = insn.modrm().read32(*this, insn);
insn.modrm().write32(*this, insn, op_shl(*this, data, cl()));
}
void SoftCPU::SHL_RM32_imm8(const X86::Instruction& insn)
{
auto data = insn.modrm().read32(*this, insn);
insn.modrm().write32(*this, insn, op_shl(*this, data, insn.imm8()));
}
void SoftCPU::SHL_RM8_1(const X86::Instruction& insn)
{
auto data = insn.modrm().read8(*this, insn);
insn.modrm().write8(*this, insn, op_shl(*this, data, 1));
}
void SoftCPU::SHL_RM8_CL(const X86::Instruction& insn)
{
auto data = insn.modrm().read8(*this, insn);
insn.modrm().write8(*this, insn, op_shl(*this, data, cl()));
}
void SoftCPU::SHL_RM8_imm8(const X86::Instruction& insn)
{
auto data = insn.modrm().read8(*this, insn);
insn.modrm().write8(*this, insn, op_shl(*this, data, insn.imm8()));
}
void SoftCPU::SHRD_RM16_reg16_CL(const X86::Instruction&) { TODO(); }
void SoftCPU::SHRD_RM16_reg16_imm8(const X86::Instruction&) { TODO(); }
void SoftCPU::SHRD_RM32_reg32_CL(const X86::Instruction&) { TODO(); }
void SoftCPU::SHRD_RM32_reg32_imm8(const X86::Instruction&) { TODO(); }
void SoftCPU::SHR_RM16_1(const X86::Instruction& insn)
{
auto data = insn.modrm().read16(*this, insn);
insn.modrm().write16(*this, insn, op_shr(*this, data, 1));
}
void SoftCPU::SHR_RM16_CL(const X86::Instruction& insn)
{
auto data = insn.modrm().read16(*this, insn);
insn.modrm().write16(*this, insn, op_shr(*this, data, cl()));
}
void SoftCPU::SHR_RM16_imm8(const X86::Instruction& insn)
{
auto data = insn.modrm().read16(*this, insn);
insn.modrm().write16(*this, insn, op_shr(*this, data, insn.imm8()));
}
void SoftCPU::SHR_RM32_1(const X86::Instruction& insn)
{
auto data = insn.modrm().read32(*this, insn);
insn.modrm().write32(*this, insn, op_shr(*this, data, 1));
}
void SoftCPU::SHR_RM32_CL(const X86::Instruction& insn)
{
auto data = insn.modrm().read32(*this, insn);
insn.modrm().write32(*this, insn, op_shr(*this, data, cl()));
}
void SoftCPU::SHR_RM32_imm8(const X86::Instruction& insn)
{
auto data = insn.modrm().read32(*this, insn);
insn.modrm().write32(*this, insn, op_shr(*this, data, insn.imm8()));
}
void SoftCPU::SHR_RM8_1(const X86::Instruction& insn)
{
auto data = insn.modrm().read8(*this, insn);
insn.modrm().write8(*this, insn, op_shr(*this, data, 1));
}
void SoftCPU::SHR_RM8_CL(const X86::Instruction& insn)
{
auto data = insn.modrm().read8(*this, insn);
insn.modrm().write8(*this, insn, op_shr(*this, data, cl()));
}
void SoftCPU::SHR_RM8_imm8(const X86::Instruction& insn)
{
auto data = insn.modrm().read8(*this, insn);
insn.modrm().write8(*this, insn, op_shr(*this, data, insn.imm8()));
}
void SoftCPU::SIDT(const X86::Instruction&) { TODO(); }
void SoftCPU::SLDT_RM16(const X86::Instruction&) { TODO(); }
void SoftCPU::SMSW_RM16(const X86::Instruction&) { TODO(); }
void SoftCPU::STC(const X86::Instruction&)
{
set_cf(true);
}
void SoftCPU::STD(const X86::Instruction&)
{
set_df(true);
}
void SoftCPU::STI(const X86::Instruction&) { TODO(); }
void SoftCPU::STOSB(const X86::Instruction& insn)
{
if (insn.has_address_size_override_prefix()) {
do_once_or_repeat<false>(insn, [&] {
write_memory8({ es(), di() }, al());
set_di(di() + (df() ? -1 : 1));
});
} else {
do_once_or_repeat<false>(insn, [&] {
write_memory8({ es(), edi() }, al());
set_edi(edi() + (df() ? -1 : 1));
});
}
}
void SoftCPU::STOSD(const X86::Instruction& insn)
{
if (insn.has_address_size_override_prefix()) {
do_once_or_repeat<false>(insn, [&] {
write_memory32({ es(), di() }, eax());
set_di(di() + (df() ? -4 : 4));
});
} else {
do_once_or_repeat<false>(insn, [&] {
write_memory32({ es(), edi() }, eax());
set_edi(edi() + (df() ? -4 : 4));
});
}
}
void SoftCPU::STOSW(const X86::Instruction& insn)
{
if (insn.has_address_size_override_prefix()) {
do_once_or_repeat<false>(insn, [&] {
write_memory16({ es(), di() }, ax());
set_di(di() + (df() ? -2 : 2));
});
} else {
do_once_or_repeat<false>(insn, [&] {
write_memory16({ es(), edi() }, ax());
set_edi(edi() + (df() ? -2 : 2));
});
}
}
void SoftCPU::STR_RM16(const X86::Instruction&) { TODO(); }
void SoftCPU::UD0(const X86::Instruction&) { TODO(); }
void SoftCPU::UD1(const X86::Instruction&) { TODO(); }
void SoftCPU::UD2(const X86::Instruction&) { TODO(); }
void SoftCPU::VERR_RM16(const X86::Instruction&) { TODO(); }
void SoftCPU::VERW_RM16(const X86::Instruction&) { TODO(); }
void SoftCPU::WAIT(const X86::Instruction&) { TODO(); }
void SoftCPU::WBINVD(const X86::Instruction&) { TODO(); }
void SoftCPU::XADD_RM16_reg16(const X86::Instruction& insn)
{
auto dest = insn.modrm().read16(*this, insn);
auto src = gpr16(insn.reg16());
auto result = op_add(*this, dest, src);
gpr16(insn.reg16()) = dest;
insn.modrm().write16(*this, insn, result);
}
void SoftCPU::XADD_RM32_reg32(const X86::Instruction& insn)
{
auto dest = insn.modrm().read32(*this, insn);
auto src = gpr32(insn.reg32());
auto result = op_add(*this, dest, src);
gpr32(insn.reg32()) = dest;
insn.modrm().write32(*this, insn, result);
}
void SoftCPU::XADD_RM8_reg8(const X86::Instruction& insn)
{
auto dest = insn.modrm().read8(*this, insn);
auto src = gpr8(insn.reg8());
auto result = op_add(*this, dest, src);
gpr8(insn.reg8()) = dest;
insn.modrm().write8(*this, insn, result);
}
void SoftCPU::XCHG_AX_reg16(const X86::Instruction& insn)
{
auto temp = gpr16(insn.reg16());
gpr16(insn.reg16()) = eax();
set_eax(temp);
}
void SoftCPU::XCHG_EAX_reg32(const X86::Instruction& insn)
{
auto temp = gpr32(insn.reg32());
gpr32(insn.reg32()) = eax();
set_eax(temp);
}
void SoftCPU::XCHG_reg16_RM16(const X86::Instruction& insn)
{
auto temp = insn.modrm().read16(*this, insn);
insn.modrm().write16(*this, insn, gpr16(insn.reg16()));
gpr16(insn.reg16()) = temp;
}
void SoftCPU::XCHG_reg32_RM32(const X86::Instruction& insn)
{
auto temp = insn.modrm().read32(*this, insn);
insn.modrm().write32(*this, insn, gpr32(insn.reg32()));
gpr32(insn.reg32()) = temp;
}
void SoftCPU::XCHG_reg8_RM8(const X86::Instruction& insn)
{
auto temp = insn.modrm().read8(*this, insn);
insn.modrm().write8(*this, insn, gpr8(insn.reg8()));
gpr8(insn.reg8()) = temp;
}
void SoftCPU::XLAT(const X86::Instruction&) { TODO(); }
#define DEFINE_GENERIC_INSN_HANDLERS_PARTIAL(mnemonic, op, update_dest) \
void SoftCPU::mnemonic##_AL_imm8(const X86::Instruction& insn) { generic_AL_imm8<update_dest>(op<u8>, insn); } \
void SoftCPU::mnemonic##_AX_imm16(const X86::Instruction& insn) { generic_AX_imm16<update_dest>(op<u16>, insn); } \
void SoftCPU::mnemonic##_EAX_imm32(const X86::Instruction& insn) { generic_EAX_imm32<update_dest>(op<u32>, insn); } \
void SoftCPU::mnemonic##_RM16_imm16(const X86::Instruction& insn) { generic_RM16_imm16<update_dest>(op<u16>, insn); } \
void SoftCPU::mnemonic##_RM16_reg16(const X86::Instruction& insn) { generic_RM16_reg16<update_dest>(op<u16>, insn); } \
void SoftCPU::mnemonic##_RM32_imm32(const X86::Instruction& insn) { generic_RM32_imm32<update_dest>(op<u32>, insn); } \
void SoftCPU::mnemonic##_RM32_reg32(const X86::Instruction& insn) { generic_RM32_reg32<update_dest>(op<u32>, insn); } \
void SoftCPU::mnemonic##_RM8_imm8(const X86::Instruction& insn) { generic_RM8_imm8<update_dest>(op<u8>, insn); } \
void SoftCPU::mnemonic##_RM8_reg8(const X86::Instruction& insn) { generic_RM8_reg8<update_dest>(op<u8>, insn); }
#define DEFINE_GENERIC_INSN_HANDLERS(mnemonic, op, update_dest) \
DEFINE_GENERIC_INSN_HANDLERS_PARTIAL(mnemonic, op, update_dest) \
void SoftCPU::mnemonic##_RM16_imm8(const X86::Instruction& insn) { generic_RM16_imm8<update_dest>(op<u16>, insn); } \
void SoftCPU::mnemonic##_RM32_imm8(const X86::Instruction& insn) { generic_RM32_imm8<update_dest>(op<u32>, insn); } \
void SoftCPU::mnemonic##_reg16_RM16(const X86::Instruction& insn) { generic_reg16_RM16<update_dest>(op<u16>, insn); } \
void SoftCPU::mnemonic##_reg32_RM32(const X86::Instruction& insn) { generic_reg32_RM32<update_dest>(op<u32>, insn); } \
void SoftCPU::mnemonic##_reg8_RM8(const X86::Instruction& insn) { generic_reg8_RM8<update_dest>(op<u8>, insn); }
DEFINE_GENERIC_INSN_HANDLERS(XOR, op_xor, true)
DEFINE_GENERIC_INSN_HANDLERS(OR, op_or, true)
DEFINE_GENERIC_INSN_HANDLERS(ADD, op_add, true)
DEFINE_GENERIC_INSN_HANDLERS(ADC, op_adc, true)
DEFINE_GENERIC_INSN_HANDLERS(SUB, op_sub, true)
DEFINE_GENERIC_INSN_HANDLERS(SBB, op_sbb, true)
DEFINE_GENERIC_INSN_HANDLERS(AND, op_and, true)
DEFINE_GENERIC_INSN_HANDLERS(CMP, op_sub, false)
DEFINE_GENERIC_INSN_HANDLERS_PARTIAL(TEST, op_and, false)
void SoftCPU::MOVQ_mm1_mm2m64(const X86::Instruction&) { TODO(); }
void SoftCPU::EMMS(const X86::Instruction&) { TODO(); }
void SoftCPU::MOVQ_mm1_m64_mm2(const X86::Instruction&) { TODO(); }
void SoftCPU::wrap_0xC0(const X86::Instruction&) { TODO(); }
void SoftCPU::wrap_0xC1_16(const X86::Instruction&) { TODO(); }
void SoftCPU::wrap_0xC1_32(const X86::Instruction&) { TODO(); }
void SoftCPU::wrap_0xD0(const X86::Instruction&) { TODO(); }
void SoftCPU::wrap_0xD1_16(const X86::Instruction&) { TODO(); }
void SoftCPU::wrap_0xD1_32(const X86::Instruction&) { TODO(); }
void SoftCPU::wrap_0xD2(const X86::Instruction&) { TODO(); }
void SoftCPU::wrap_0xD3_16(const X86::Instruction&) { TODO(); }
void SoftCPU::wrap_0xD3_32(const X86::Instruction&) { TODO(); }
}
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