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Pack decoded ModR/M data into a single word - minor recompiler speedup.

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This commit is contained in:
SarahW 2016-08-14 16:29:54 +01:00
commit 535604b760
34 changed files with 1263 additions and 1270 deletions
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8
src/codegen_ops_x86.h
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@ -136,7 +136,7 @@ static int LOAD_REG_L(int reg)
static int LOAD_VAR_W(uintptr_t addr)
{
int host_reg = find_host_reg();
host_reg_mapping[host_reg] = reg;
host_reg_mapping[host_reg] = 0;
addbyte(0x66); /*MOVL host_reg,[reg]*/
addbyte(0x8b);
@ -148,7 +148,7 @@ static int LOAD_VAR_W(uintptr_t addr)
static int LOAD_VAR_L(uintptr_t addr)
{
int host_reg = find_host_reg();
host_reg_mapping[host_reg] = reg;
host_reg_mapping[host_reg] = 0;
addbyte(0x8b); /*MOVL host_reg,[reg]*/
addbyte(0x05 | (host_reg << 3));
@ -160,7 +160,7 @@ static int LOAD_VAR_L(uintptr_t addr)
static int LOAD_REG_IMM(uint32_t imm)
{
int host_reg = find_host_reg();
host_reg_mapping[host_reg] = reg;
host_reg_mapping[host_reg] = 0;
addbyte(0xc7); /*MOVL host_reg, imm*/
addbyte(0xc0 | host_reg);
@ -172,7 +172,7 @@ static int LOAD_REG_IMM(uint32_t imm)
static int LOAD_HOST_REG(int host_reg)
{
int new_host_reg = find_host_reg();
host_reg_mapping[new_host_reg] = reg;
host_reg_mapping[new_host_reg] = 0;
addbyte(0x89); /*MOV new_host_reg, host_reg*/
addbyte(0xc0 | (host_reg << 3) | new_host_reg);