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Add recompiled versions of mem->reg, reg->mem and imm->mem versions of MOV.

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This commit is contained in:
SarahW 2018-07-25 20:16:58 +01:00
commit f27b7f757a
30 changed files with 5225 additions and 2160 deletions
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47
src/codegen.c
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@ -45,6 +45,41 @@ void codegen_generate_reset()
has_ea = 0;
}
void codegen_check_seg_read(codeblock_t *block, ir_data_t *ir, x86seg *seg)
{
/*Segments always valid in real/V86 mode*/
if (!(cr0 & 1) || (eflags & VM_FLAG))
return;
/*CS and SS must always be valid*/
if (seg == &cpu_state.seg_cs || seg == &cpu_state.seg_ss)
return;
if (seg->checked)
return;
if (seg == &cpu_state.seg_ds && codegen_flat_ds && !(cpu_cur_status & CPU_STATUS_NOTFLATDS))
return;
uop_CMP_IMM_JZ(ir, ireg_seg_base(seg), (uint32_t)-1, &block->data[BLOCK_GPF_OFFSET]);
seg->checked = 1;
}
void codegen_check_seg_write(codeblock_t *block, ir_data_t *ir, x86seg *seg)
{
/*Segments always valid in real/V86 mode*/
if (!(cr0 & 1) || (eflags & VM_FLAG))
return;
/*CS and SS must always be valid*/
if (seg == &cpu_state.seg_cs || seg == &cpu_state.seg_ss)
return;
if (seg->checked)
return;
if (seg == &cpu_state.seg_ds && codegen_flat_ds && !(cpu_cur_status & CPU_STATUS_NOTFLATDS))
return;
uop_CMP_IMM_JZ(ir, ireg_seg_base(seg), (uint32_t)-1, &block->data[BLOCK_GPF_OFFSET]);
seg->checked = 1;
}
static x86seg *codegen_generate_ea_16_long(ir_data_t *ir, x86seg *op_ea_seg, uint32_t fetchdat, int op_ssegs, uint32_t *op_pc)
{
// pclog("codegen - mod=%i rm=%i reg=%i fetchdat=%08x\n", cpu_mod, cpu_rm, cpu_reg, fetchdat);
@ -203,6 +238,18 @@ static x86seg *codegen_generate_ea_32_long(ir_data_t *ir, x86seg *op_ea_seg, uin
return op_ea_seg;
}
x86seg *codegen_generate_ea(ir_data_t *ir, x86seg *op_ea_seg, uint32_t fetchdat, int op_ssegs, uint32_t *op_pc, uint32_t op_32)
{
cpu_mod = (fetchdat >> 6) & 3;
cpu_reg = (fetchdat >> 3) & 7;
cpu_rm = fetchdat & 7;
if (op_32 & 0x200)
return codegen_generate_ea_32_long(ir, op_ea_seg, fetchdat, op_ssegs, op_pc, 0);
return codegen_generate_ea_16_long(ir, op_ea_seg, fetchdat, op_ssegs, op_pc);
}
static uint8_t opcode_modrm[256] =
{
1, 1, 1, 1, 0, 0, 0, 0, 1, 1, 1, 1, 0, 0, 0, 0, /*00*/