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UserspaceEmulator: Fix too-wide accumulator used in 8/16 bit CMPXCHG
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1 changed files with 2 additions and 2 deletions
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@ -1074,7 +1074,7 @@ void SoftCPU::CMPSW(const X86::Instruction& insn)
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void SoftCPU::CMPXCHG_RM16_reg16(const X86::Instruction& insn)
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{
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auto current = insn.modrm().read16(*this, insn);
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if (current == eax()) {
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if (current == ax()) {
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set_zf(true);
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insn.modrm().write16(*this, insn, gpr16(insn.reg16()));
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} else {
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@ -1098,7 +1098,7 @@ void SoftCPU::CMPXCHG_RM32_reg32(const X86::Instruction& insn)
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void SoftCPU::CMPXCHG_RM8_reg8(const X86::Instruction& insn)
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{
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auto current = insn.modrm().read8(*this, insn);
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if (current == eax()) {
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if (current == al()) {
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set_zf(true);
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insn.modrm().write8(*this, insn, gpr8(insn.reg8()));
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} else {
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