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 PUSH [mem], PUSH seg, NOP, CLD, STD, JMP indirect, CALL indirect.

Browse source
This commit is contained in:
TomW 2015-11-17 20:52:51 +00:00
commit e9bea8ab7e
6 changed files with 253 additions and 11 deletions
Download patch file Download diff file Expand all files Collapse all files

46
src/codegen_ops_x86.h
View file

@ -144,6 +144,17 @@ static int LOAD_REG_IMM(uint32_t imm)
return host_reg;
}
static int LOAD_HOST_REG(int host_reg)
{
int new_host_reg = find_host_reg();
host_reg_mapping[new_host_reg] = reg;
addbyte(0x89); /*MOV new_host_reg, host_reg*/
addbyte(0xc0 | (host_reg << 3) | new_host_reg);
return new_host_reg;
}
static void STORE_REG_B_RELEASE(int host_reg)
{
addbyte(0x88); /*MOVB [reg],host_reg*/
@ -2950,3 +2961,38 @@ static int COPY_REG(int src_reg)
{
return src_reg;
}
static void SET_BITS(uintptr_t addr, uint32_t val)
{
if (val & ~0xff)
{
addbyte(0x81);
addbyte(0x0d);
addlong(addr);
addlong(val);
}
else
{
addbyte(0x80);
addbyte(0x0d);
addlong(addr);
addbyte(val);
}
}
static void CLEAR_BITS(uintptr_t addr, uint32_t val)
{
if (val & ~0xff)
{
addbyte(0x81);
addbyte(0x25);
addlong(addr);
addlong(~val);
}
else
{
addbyte(0x80);
addbyte(0x25);
addlong(addr);
addbyte(~val);
}
}