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32x: new SH2 memory handling, hopefully faster

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git-svn-id: file:///home/notaz/opt/svn/PicoDrive@817 be3aeb3a-fb24-0410-a615-afba39da0efa
This commit is contained in:
notaz 2009-10-15 20:03:23 +00:00
parent 6add7875b5
commit bcf65fd674
7 changed files with 377 additions and 221 deletions
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33
pico/memory.h
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@ -3,25 +3,26 @@
typedef unsigned char u8;
typedef unsigned short u16;
typedef unsigned int u32;
typedef unsigned long uptr; // unsigned pointer-sized int
#define M68K_MEM_SHIFT 16
// minimum size we can map
#define M68K_BANK_SIZE (1 << M68K_MEM_SHIFT)
#define M68K_BANK_MASK (M68K_BANK_SIZE - 1)
extern unsigned long m68k_read8_map [0x1000000 >> M68K_MEM_SHIFT];
extern unsigned long m68k_read16_map [0x1000000 >> M68K_MEM_SHIFT];
extern unsigned long m68k_write8_map [0x1000000 >> M68K_MEM_SHIFT];
extern unsigned long m68k_write16_map[0x1000000 >> M68K_MEM_SHIFT];
extern uptr m68k_read8_map [0x1000000 >> M68K_MEM_SHIFT];
extern uptr m68k_read16_map [0x1000000 >> M68K_MEM_SHIFT];
extern uptr m68k_write8_map [0x1000000 >> M68K_MEM_SHIFT];
extern uptr m68k_write16_map[0x1000000 >> M68K_MEM_SHIFT];
extern unsigned long s68k_read8_map [0x1000000 >> M68K_MEM_SHIFT];
extern unsigned long s68k_read16_map [0x1000000 >> M68K_MEM_SHIFT];
extern unsigned long s68k_write8_map [0x1000000 >> M68K_MEM_SHIFT];
extern unsigned long s68k_write16_map[0x1000000 >> M68K_MEM_SHIFT];
extern uptr s68k_read8_map [0x1000000 >> M68K_MEM_SHIFT];
extern uptr s68k_read16_map [0x1000000 >> M68K_MEM_SHIFT];
extern uptr s68k_write8_map [0x1000000 >> M68K_MEM_SHIFT];
extern uptr s68k_write16_map[0x1000000 >> M68K_MEM_SHIFT];
void z80_map_set(unsigned long *map, int start_addr, int end_addr,
void z80_map_set(uptr *map, int start_addr, int end_addr,
const void *func_or_mh, int is_func);
void cpu68k_map_set(unsigned long *map, int start_addr, int end_addr,
void cpu68k_map_set(uptr *map, int start_addr, int end_addr,
const void *func_or_mh, int is_func);
void cpu68k_map_all_ram(int start_addr, int end_addr, void *ptr, int is_sub);
void m68k_map_unmap(int start_addr, int end_addr);
@ -35,7 +36,7 @@ typedef void (cpu68k_write_f)(u32 a, u32 d);
#define MAKE_68K_READ8(name, map) \
u32 name(u32 a) \
{ \
unsigned long v; \
uptr v; \
a &= 0x00ffffff; \
v = map[a >> M68K_MEM_SHIFT]; \
if (v & 0x80000000) \
@ -47,7 +48,7 @@ u32 name(u32 a) \
#define MAKE_68K_READ16(name, map) \
u32 name(u32 a) \
{ \
unsigned long v; \
uptr v; \
a &= 0x00fffffe; \
v = map[a >> M68K_MEM_SHIFT]; \
if (v & 0x80000000) \
@ -59,7 +60,7 @@ u32 name(u32 a) \
#define MAKE_68K_READ32(name, map) \
u32 name(u32 a) \
{ \
unsigned long v, vs; \
uptr v, vs; \
u32 d; \
a &= 0x00fffffe; \
v = map[a >> M68K_MEM_SHIFT]; \
@ -78,7 +79,7 @@ u32 name(u32 a) \
#define MAKE_68K_WRITE8(name, map) \
void name(u32 a, u8 d) \
{ \
unsigned long v; \
uptr v; \
a &= 0x00ffffff; \
v = map[a >> M68K_MEM_SHIFT]; \
if (v & 0x80000000) \
@ -90,7 +91,7 @@ void name(u32 a, u8 d) \
#define MAKE_68K_WRITE16(name, map) \
void name(u32 a, u16 d) \
{ \
unsigned long v; \
uptr v; \
a &= 0x00fffffe; \
v = map[a >> M68K_MEM_SHIFT]; \
if (v & 0x80000000) \
@ -102,7 +103,7 @@ void name(u32 a, u16 d) \
#define MAKE_68K_WRITE32(name, map) \
void name(u32 a, u32 d) \
{ \
unsigned long v, vs; \
uptr v, vs; \
a &= 0x00fffffe; \
v = map[a >> M68K_MEM_SHIFT]; \
vs = v << 1; \