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

30
src/x86_ops_flag.h
View file

@ -25,10 +25,13 @@ static int opCLI(uint32_t fetchdat)
if (!IOPLp)
{
x86gpf(NULL,0);
return 1;
}
else
flags &= ~I_FLAG;
CPU_BLOCK_END();
cycles -= 3;
return 0;
}
@ -51,10 +54,13 @@ static int opSTI(uint32_t fetchdat)
if (!IOPLp)
{
x86gpf(NULL,0);
return 1;
}
else
flags |= I_FLAG;
CPU_BLOCK_END();
cycles -= 2;
return 0;
}
@ -79,12 +85,12 @@ static int opPUSHF(uint32_t fetchdat)
if ((eflags & VM_FLAG) && (IOPL < 3))
{
x86gpf(NULL,0);
return 0;
return 1;
}
flags_rebuild();
PUSH_W(flags);
cycles -= 4;
return 0;
return abrt;
}
static int opPUSHFD(uint32_t fetchdat)
{
@ -92,14 +98,14 @@ static int opPUSHFD(uint32_t fetchdat)
if ((eflags & VM_FLAG) && (IOPL < 3))
{
x86gpf(NULL, 0);
return 0;
return 1;
}
if (CPUID) tempw = eflags & 0x24;
else tempw = eflags & 4;
flags_rebuild();
PUSH_L(flags | (tempw << 16));
cycles -= 4;
return 0;
return abrt;
}
static int opPOPF_286(uint32_t fetchdat)
@ -109,10 +115,10 @@ static int opPOPF_286(uint32_t fetchdat)
if ((eflags & VM_FLAG) && (IOPL < 3))
{
x86gpf(NULL, 0);
return 0;
return 1;
}
tempw = POP_W(); if (abrt) return 0;
tempw = POP_W(); if (abrt) return 1;
if (!(msw & 1)) flags = (flags & 0x7000) | (tempw & 0x0fd5) | 2;
else if (!(CPL)) flags = (tempw & 0x7fd5) | 2;
@ -130,10 +136,10 @@ static int opPOPF(uint32_t fetchdat)
if ((eflags & VM_FLAG) && (IOPL < 3))
{
x86gpf(NULL, 0);
return 0;
return 1;
}
tempw = POP_W(); if (abrt) return 0;
tempw = POP_W(); if (abrt) return 1;
if (!(CPL) || !(msw & 1)) flags = (tempw & 0xffd5) | 2;
else if (IOPLp) flags = (flags & 0x3000) | (tempw & 0xcfd5) | 2;
@ -150,10 +156,10 @@ static int opPOPFD(uint32_t fetchdat)
if ((eflags & VM_FLAG) && (IOPL < 3))
{
x86gpf(NULL, 0);
return 0;
return 1;
}
templ = POP_L(); if (abrt) return 0;
templ = POP_L(); if (abrt) return 1;
if (!(CPL) || !(msw & 1)) flags = (templ & 0xffd5) | 2;
else if (IOPLp) flags = (flags & 0x3000) | (templ & 0xcfd5) | 2;