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Honore the fixed bits of flags when pushing them to the stack, fixes #5093.

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OBattler
2025-05-17 21:02:06 +02:00
parent dc9101c00c
commit ddd271f6ee
3 changed files with 12 additions and 26 deletions
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4
src/codegen_new/codegen_ops_stack.c
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@@ -390,6 +390,8 @@ ropPUSHF(UNUSED(codeblock_t *block), ir_data_t *ir, UNUSED(uint8_t opcode), UNUS
uop_MOV_IMM(ir, IREG_oldpc, cpu_state.oldpc);
uop_CALL_FUNC(ir, flags_rebuild);
sp_reg = LOAD_SP_WITH_OFFSET(ir, -2);
uop_AND_IMM(ir, IREG_flags, IREG_flags, 0x7fd5);
uop_OR_IMM(ir, IREG_flags, IREG_flags, 0x0002);
uop_MEM_STORE_REG(ir, IREG_SS_base, sp_reg, IREG_flags);
SUB_SP(ir, 2);
@@ -406,6 +408,8 @@ ropPUSHFD(UNUSED(codeblock_t *block), ir_data_t *ir, UNUSED(uint8_t opcode), UNU
uop_MOV_IMM(ir, IREG_oldpc, cpu_state.oldpc);
uop_CALL_FUNC(ir, flags_rebuild);
uop_AND_IMM(ir, IREG_flags, IREG_flags, 0x7fd5);
uop_OR_IMM(ir, IREG_flags, IREG_flags, 0x0002);
if (cpu_CR4_mask & CR4_VME)
uop_AND_IMM(ir, IREG_temp0_W, IREG_eflags, 0x3c);
else if (CPUID)