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

Initial commit of dynamic recompiler.

Browse source 
Various CPU changes to support dynamic recompiler.
This commit is contained in:
TomW 2014-11-05 21:24:16 +00:00
commit 4676daade4
52 changed files with 3740 additions and 1139 deletions
Download patch file Download diff file Expand all files Collapse all files

27
src/x86_ops_ret.h
View file

@ -2,7 +2,7 @@
if ((msw&1) && !(eflags&VM_FLAG)) \
{ \
pmoderetf(0, stack_offset); \
return 0; \
return 1; \
} \
oxpc = pc; \
if (stack32) \
@ -15,7 +15,7 @@
pc = readmemw(ss, SP); \
loadcs(readmemw(ss, SP + 2)); \
} \
if (abrt) return 0; \
if (abrt) return 1; \
if (stack32) ESP += 4 + stack_offset; \
else SP += 4 + stack_offset; \
cycles -= is486 ? 13 : 18;
@ -24,7 +24,7 @@
if ((msw&1) && !(eflags&VM_FLAG)) \
{ \
pmoderetf(1, stack_offset); \
return 0; \
return 1; \
} \
oxpc = pc; \
if (stack32) \
@ -37,18 +37,20 @@
pc = readmeml(ss, SP); \
loadcs(readmeml(ss, SP + 4) & 0xffff); \
} \
if (abrt) return 0; \
if (abrt) return 1; \
if (stack32) ESP += 8 + stack_offset; \
else SP += 8 + stack_offset; \
cycles -= is486 ? 13 : 18;
static int opRETF_a16(uint32_t fetchdat)
{
CPU_BLOCK_END();
RETF_a16(0);
return 0;
}
static int opRETF_a32(uint32_t fetchdat)
{
CPU_BLOCK_END();
RETF_a32(0);
return 0;
}
@ -56,12 +58,14 @@ static int opRETF_a32(uint32_t fetchdat)
static int opRETF_a16_imm(uint32_t fetchdat)
{
uint16_t offset = getwordf();
CPU_BLOCK_END();
RETF_a16(offset);
return 0;
}
static int opRETF_a32_imm(uint32_t fetchdat)
{
uint16_t offset = getwordf();
CPU_BLOCK_END();
RETF_a32(offset);
return 0;
}
@ -71,7 +75,7 @@ static int opIRET_286(uint32_t fetchdat)
if ((cr0 & 1) && (eflags & VM_FLAG) && (IOPL != 3))
{
x86gpf(NULL,0);
return 0;
return 1;
}
if (msw&1)
{
@ -102,7 +106,8 @@ static int opIRET_286(uint32_t fetchdat)
flags_extract();
cycles -= is486 ? 15 : 22;
nmi_enable = 1;
return 0;
CPU_BLOCK_END();
return abrt;
}
static int opIRET(uint32_t fetchdat)
@ -110,7 +115,7 @@ static int opIRET(uint32_t fetchdat)
if ((cr0 & 1) && (eflags & VM_FLAG) && (IOPL != 3))
{
x86gpf(NULL,0);
return 0;
return 1;
}
if (msw&1)
{
@ -141,7 +146,8 @@ static int opIRET(uint32_t fetchdat)
flags_extract();
cycles -= is486 ? 15 : 22;
nmi_enable = 1;
return 0;
CPU_BLOCK_END();
return abrt;
}
static int opIRETD(uint32_t fetchdat)
@ -149,7 +155,7 @@ static int opIRETD(uint32_t fetchdat)
if ((cr0 & 1) && (eflags & VM_FLAG) && (IOPL != 3))
{
x86gpf(NULL,0);
return 0;
return 1;
}
if (msw & 1)
{
@ -182,6 +188,7 @@ static int opIRETD(uint32_t fetchdat)
flags_extract();
cycles -= is486 ? 15 : 22;
nmi_enable = 1;
return 0;
CPU_BLOCK_END();
return abrt;
}