Retro/pcem
Watch
1
0
Fork
You've already forked pcem
 0
Code Issues Pull requests Projects Releases Packages Wiki Activity Actions

Added recompiled versions of PUSHF and PUSHFD.

Browse source
This commit is contained in:
SarahW 2018-11-28 15:19:21 +00:00
commit 335cea3ee1
5 changed files with 52 additions and 6 deletions
Download patch file Download diff file Expand all files Collapse all files

40
src/codegen_ops_stack.c
View file

@ -1,6 +1,7 @@
#include "ibm.h"
#include "x86.h"
#include "x86_flags.h"
#include "386_common.h"
#include "codegen.h"
#include "codegen_ir.h"
@ -361,3 +362,42 @@ uint32_t ropPOPA_32(codeblock_t *block, ir_data_t *ir, uint8_t opcode, uint32_t
return op_pc;
}
uint32_t ropPUSHF(codeblock_t *block, ir_data_t *ir, uint8_t opcode, uint32_t fetchdat, uint32_t op_32, uint32_t op_pc)
{
int sp_reg;
if ((cpu_state.eflags & VM_FLAG) && (IOPL < 3))
return 0;
uop_MOV_IMM(ir, IREG_oldpc, cpu_state.oldpc);
uop_CALL_FUNC(ir, flags_rebuild);
sp_reg = LOAD_SP_WITH_OFFSET(ir, -2);
uop_MEM_STORE_REG(ir, IREG_SS_base, sp_reg, IREG_flags);
SUB_SP(ir, 2);
return op_pc;
}
uint32_t ropPUSHFD(codeblock_t *block, ir_data_t *ir, uint8_t opcode, uint32_t fetchdat, uint32_t op_32, uint32_t op_pc)
{
int sp_reg;
if ((cpu_state.eflags & VM_FLAG) && (IOPL < 3))
return 0;
uop_MOV_IMM(ir, IREG_oldpc, cpu_state.oldpc);
uop_CALL_FUNC(ir, flags_rebuild);
if (cpu_CR4_mask & CR4_VME)
uop_AND_IMM(ir, IREG_temp0_W, IREG_eflags, 0x3c);
else if (CPUID)
uop_AND_IMM(ir, IREG_temp0_W, IREG_eflags, 0x24);
else
uop_AND_IMM(ir, IREG_temp0_W, IREG_eflags, 4);
sp_reg = LOAD_SP_WITH_OFFSET(ir, -4);
uop_MEM_STORE_REG(ir, IREG_SS_base, sp_reg, IREG_flags);
uop_MEM_STORE_REG_OFFSET(ir, IREG_SS_base, sp_reg, 2, IREG_temp0_W);
SUB_SP(ir, 4);
return op_pc;
}