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allow to disable SH2 dynarec on runtime

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This commit is contained in:
notaz 2013-08-31 20:02:59 +03:00
parent 835122bc0c
commit 0185b67736
9 changed files with 80 additions and 24 deletions
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58
cpu/sh2/mame/sh2pico.c
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@ -17,12 +17,46 @@ typedef unsigned short UINT16;
typedef unsigned char UINT8;
#endif
#define RB(sh2, a) p32x_sh2_read8(a,sh2)
#define RW(sh2, a) p32x_sh2_read16(a,sh2)
#define RL(sh2, a) p32x_sh2_read32(a,sh2)
#define WB(sh2, a, d) p32x_sh2_write8(a,d,sh2)
#define WW(sh2, a, d) p32x_sh2_write16(a,d,sh2)
#define WL(sh2, a, d) p32x_sh2_write32(a,d,sh2)
#ifdef DRC_SH2
// this nasty conversion is needed for drc-expecting memhandlers
#define MAKE_READFUNC(name, cname) \
static inline unsigned int name(SH2 *sh2, unsigned int a) \
{ \
unsigned int ret; \
sh2->sr |= sh2->icount << 12; \
ret = cname(a, sh2); \
sh2->icount = (signed int)sh2->sr >> 12; \
sh2->sr &= 0x3f3; \
return ret; \
}
#define MAKE_WRITEFUNC(name, cname) \
static inline void name(SH2 *sh2, unsigned int a, unsigned int d) \
{ \
sh2->sr |= sh2->icount << 12; \
cname(a, d, sh2); \
sh2->icount = (signed int)sh2->sr >> 12; \
sh2->sr &= 0x3f3; \
}
MAKE_READFUNC(RB, p32x_sh2_read8)
MAKE_READFUNC(RW, p32x_sh2_read16)
MAKE_READFUNC(RL, p32x_sh2_read32)
MAKE_WRITEFUNC(WB, p32x_sh2_write8)
MAKE_WRITEFUNC(WW, p32x_sh2_write16)
MAKE_WRITEFUNC(WL, p32x_sh2_write32)
#else
#define RB(sh2, a) p32x_sh2_read8(a, sh2)
#define RW(sh2, a) p32x_sh2_read16(a, sh2)
#define RL(sh2, a) p32x_sh2_read32(a, sh2)
#define WB(sh2, a, d) p32x_sh2_write8(a, d, sh2)
#define WW(sh2, a, d) p32x_sh2_write16(a, d, sh2)
#define WL(sh2, a, d) p32x_sh2_write32(a, d, sh2)
#endif
// some stuff from sh2comn.h
#define T 0x00000001
@ -71,14 +105,13 @@ static unsigned int op_refs[0x10000];
#include "sh2.c"
#ifndef DRC_SH2
#ifndef DRC_CMP
int sh2_execute(SH2 *sh2, int cycles)
int sh2_execute_interpreter(SH2 *sh2, int cycles)
{
UINT32 opcode;
sh2->icount = sh2->cycles_timeslice = cycles;
sh2->icount = cycles;
if (sh2->icount <= 0)
goto out;
@ -134,12 +167,12 @@ int sh2_execute(SH2 *sh2, int cycles)
while (sh2->icount > 0 || sh2->delay); /* can't interrupt before delay */
out:
return sh2->cycles_timeslice - sh2->icount;
return sh2->icount;
}
#else // if DRC_CMP
int sh2_execute(SH2 *sh2, int cycles)
int sh2_execute_interpreter(SH2 *sh2, int cycles)
{
static unsigned int base_pc_[2] = { 0, 0 };
static unsigned int end_pc_[2] = { 0, 0 };
@ -233,11 +266,10 @@ int sh2_execute(SH2 *sh2, int cycles)
while (1);
out:
return sh2->cycles_timeslice - sh2->icount;
return sh2->icount;
}
#endif // DRC_CMP
#endif // DRC_SH2
#ifdef SH2_STATS
#include <stdio.h>