RaySollium99/picodrive
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optimizations, fixes, hacks, psp, ...

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git-svn-id: file:///home/notaz/opt/svn/PicoDrive@295 be3aeb3a-fb24-0410-a615-afba39da0efa
This commit is contained in:
notaz 2007-11-15 23:01:20 +00:00
parent 8022f53da6
commit b542be4686
37 changed files with 928 additions and 548 deletions
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16
cpu/fame/famec.c
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@ -16,8 +16,8 @@
// Options //
#define FAMEC_ROLL_INLINE
#define FAMEC_EMULATE_TRACE
#define FAMEC_CHECK_BRANCHES
//#define FAMEC_EMULATE_TRACE
//#define FAMEC_CHECK_BRANCHES
#define FAMEC_EXTRA_INLINE
// #define FAMEC_DEBUG
//#define FAMEC_NO_GOTOS
@ -280,11 +280,18 @@ typedef signed int s32;
((u32)PC - BasePC)
#ifdef FAMEC_CHECK_BRANCHES
#define FORCE_ALIGNMENT(pc)
#else
#define FORCE_ALIGNMENT(pc) pc&=~1;
#endif
#ifndef FAMEC_32BIT_PC
#define SET_PC(A) \
{ \
u32 pc = A; \
FORCE_ALIGNMENT(pc); \
BasePC = m68kcontext.Fetch[(pc >> M68K_FETCHSFT) & M68K_FETCHMASK]; \
PC = (u16*)((pc & M68K_ADR_MASK) + BasePC); \
}
@ -294,6 +301,7 @@ typedef signed int s32;
#define SET_PC(A) \
{ \
u32 pc = A; \
FORCE_ALIGNMENT(pc); \
BasePC = m68kcontext.Fetch[(pc >> M68K_FETCHSFT) & M68K_FETCHMASK]; \
BasePC -= pc & 0xFF000000; \
PC = (u16*)(pc + BasePC); \
@ -734,7 +742,9 @@ static FAMEC_EXTRA_INLINE u32 execute_exception(s32 vect, u32 oldPC, u32 oldSR)
#ifndef FAMEC_32BIT_PC
newPC&=M68K_ADR_MASK
#endif
#ifdef FAMEC_CHECK_BRANCHES
newPC&=~1; // don't crash on games with bad vector tables
#endif
// SET_PC(newPC)
@ -948,6 +958,7 @@ famec_End:
#ifdef PICODRIVE_HACK
dualcore_mode:
while (1)
{
extern int SekCycleAim, SekCycleCnt, SekCycleAimS68k, SekCycleCntS68k;
#define PS_STEP_M68K ((488<<16)/20) // ~24
@ -989,7 +1000,6 @@ dualcore_mode:
}
cycles = m68kcontext.io_cycle_counter = 0;
}
goto dualcore_mode;
}
#endif