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 JMP, CALL, RET, PUSH and POP.

Browse source
This commit is contained in:
SarahW 2018-08-05 16:24:15 +01:00
commit f1df9be8f6
33 changed files with 1062 additions and 102 deletions
Download patch file Download diff file Expand all files Collapse all files

63
src/codegen_backend_x86-64_ops.c
View file

@ -395,6 +395,28 @@ void host_x86_MOV8_ABS_REG(codeblock_t *block, void *p, int src_reg)
codegen_addlong(block, (uint32_t)(uintptr_t)p);
}
}
void host_x86_MOV16_ABS_REG(codeblock_t *block, void *p, int src_reg)
{
int64_t offset = (uintptr_t)p - (((uintptr_t)&cpu_state) + 128);
if (src_reg & 8)
fatal("host_x86_MOV16_ABS_REG - bad reg\n");
if (offset >= -128 && offset < 127)
{
codegen_addbyte4(block, 0x66, 0x89, 0x45 | ((src_reg & 7) << 3), offset); /*MOV offset[RBP], src_reg*/
}
else if (offset < (1ull << 32))
{
codegen_addbyte3(block, 0x66, 0x89, 0x85 | ((src_reg & 7) << 3)); /*MOV offset[RBP], src_reg*/
codegen_addlong(block, offset);
}
else
{
if ((uintptr_t)p >> 32)
fatal("host_x86_MOV32_ABS_REG - out of range %p\n", p);
}
}
void host_x86_MOV32_ABS_REG(codeblock_t *block, void *p, int src_reg)
{
int64_t offset = (uintptr_t)p - (((uintptr_t)&cpu_state) + 128);
@ -459,6 +481,27 @@ void host_x86_MOV32_BASE_INDEX_REG(codeblock_t *block, int base_reg, int index_r
codegen_addbyte3(block, 0x89, 0x04 | (src_reg << 3), (index_reg << 3) | base_reg); /*MOV L[base_reg + index_reg], src_reg*/
}
void host_x86_MOV16_REG_ABS(codeblock_t *block, int dst_reg, void *p)
{
int offset = (uintptr_t)p - (((uintptr_t)&cpu_state) + 128);
if (dst_reg & 8)
fatal("host_x86_MOV16_REG_ABS reg & 8\n");
if (offset >= -128 && offset < 127)
{
codegen_addbyte4(block, 0x66, 0x8b, 0x45 | ((dst_reg & 7) << 3), offset); /*MOV dst_reg, offset[RBP]*/
}
else if (offset < (1ull << 32))
{
codegen_addbyte3(block, 0x66, 0x8b, 0x85 | ((dst_reg & 7) << 3)); /*MOV dst_reg, offset[RBP]*/
codegen_addlong(block, offset);
}
else
{
fatal("host_x86_MOV16_REG_ABS - out of range\n");
}
}
void host_x86_MOV32_REG_ABS(codeblock_t *block, int dst_reg, void *p)
{
int offset = (uintptr_t)p - (((uintptr_t)&cpu_state) + 128);
@ -501,10 +544,28 @@ void host_x86_MOV64_REG_BASE_INDEX_SHIFT(codeblock_t *block, int dst_reg, int ba
codegen_addbyte4(block, 0x48, 0x8b, 0x04 | ((dst_reg & 7) << 3), (scale << 6) | ((index_reg & 7) << 3) | (base_reg & 7)); /*MOV dst_reg, Q[base_reg + index_reg << scale]*/
}
void host_x86_MOV16_REG_BASE_OFFSET(codeblock_t *block, int dst_reg, int base_reg, int offset)
{
if ((dst_reg & 8) || (base_reg & 8))
fatal("host_x86_MOV16_REG_BASE_OFFSET reg & 8\n");
if (offset >= -128 && offset < 127)
{
if (base_reg == REG_RSP)
{
codegen_addbyte(block, 0x66);
codegen_addbyte4(block, 0x8b, 0x40 | base_reg | (dst_reg << 3), 0x24, offset);
}
else
codegen_addbyte4(block, 0x66, 0x8b, 0x40 | base_reg | (dst_reg << 3), offset);
}
else
fatal("MOV16_REG_BASE_OFFSET - offset %i\n", offset);
}
void host_x86_MOV32_REG_BASE_OFFSET(codeblock_t *block, int dst_reg, int base_reg, int offset)
{
if ((dst_reg & 8) || (base_reg & 8))
fatal("host_x86_MOV64_REG_BASE_OFFSET reg & 8\n");
fatal("host_x86_MOV32_REG_BASE_OFFSET reg & 8\n");
if (offset >= -128 && offset < 127)
{