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| author | Andreas Kling <kling@serenityos.org> | 2020-07-12 14:45:25 +0200 |
|---|---|---|
| committer | Andreas Kling <kling@serenityos.org> | 2020-07-12 14:45:35 +0200 |
| commit | 536ca0f8c91142a455bb42429813e1694df4eb3e (patch) | |
| tree | fb4cd821f8f5e1d8494add8aa935f0f94117ef04 | |
| parent | 2d44f4526a9830468f875d8e13e488bc022b7881 (diff) | |
| download | serenity-536ca0f8c91142a455bb42429813e1694df4eb3e.zip | |
UserspaceEmulator: Implement some more MOV variants
| -rw-r--r-- | DevTools/UserspaceEmulator/SoftCPU.cpp | 29 |
1 files changed, 24 insertions, 5 deletions
diff --git a/DevTools/UserspaceEmulator/SoftCPU.cpp b/DevTools/UserspaceEmulator/SoftCPU.cpp index ad1d4db67f..523b41bf1b 100644 --- a/DevTools/UserspaceEmulator/SoftCPU.cpp +++ b/DevTools/UserspaceEmulator/SoftCPU.cpp @@ -1052,8 +1052,16 @@ 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&) { TODO(); } -void SoftCPU::MOV_AX_moff16(const X86::Instruction&) { TODO(); } +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(); } @@ -1094,9 +1102,20 @@ 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&) { TODO(); } -void SoftCPU::MOV_moff32_EAX(const X86::Instruction&) { TODO(); } -void SoftCPU::MOV_moff8_AL(const X86::Instruction&) { TODO(); } +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) { |