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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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30
pico/memory.c
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@ -15,15 +15,15 @@
extern unsigned int lastSSRamWrite; // used by serial eeprom code
unsigned long m68k_read8_map [0x1000000 >> M68K_MEM_SHIFT];
unsigned long m68k_read16_map [0x1000000 >> M68K_MEM_SHIFT];
unsigned long m68k_write8_map [0x1000000 >> M68K_MEM_SHIFT];
unsigned long m68k_write16_map[0x1000000 >> M68K_MEM_SHIFT];
uptr m68k_read8_map [0x1000000 >> M68K_MEM_SHIFT];
uptr m68k_read16_map [0x1000000 >> M68K_MEM_SHIFT];
uptr m68k_write8_map [0x1000000 >> M68K_MEM_SHIFT];
uptr m68k_write16_map[0x1000000 >> M68K_MEM_SHIFT];
static void xmap_set(unsigned long *map, int shift, int start_addr, int end_addr,
static void xmap_set(uptr *map, int shift, int start_addr, int end_addr,
const void *func_or_mh, int is_func)
{
unsigned long addr = (unsigned long)func_or_mh;
uptr addr = (uptr)func_or_mh;
int mask = (1 << shift) - 1;
int i;
@ -48,13 +48,13 @@ static void xmap_set(unsigned long *map, int shift, int start_addr, int end_addr
}
}
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)
{
xmap_set(map, Z80_MEM_SHIFT, start_addr, end_addr, func_or_mh, 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)
{
xmap_set(map, M68K_MEM_SHIFT, start_addr, end_addr, func_or_mh, is_func);
@ -63,8 +63,8 @@ void cpu68k_map_set(unsigned long *map, int start_addr, int end_addr,
// more specialized/optimized function (does same as above)
void cpu68k_map_all_ram(int start_addr, int end_addr, void *ptr, int is_sub)
{
unsigned long *r8map, *r16map, *w8map, *w16map;
unsigned long addr = (unsigned long)ptr;
uptr *r8map, *r16map, *w8map, *w16map;
uptr addr = (uptr)ptr;
int shift = M68K_MEM_SHIFT;
int i;
@ -110,23 +110,23 @@ static void m68k_unmapped_write16(u32 a, u32 d)
void m68k_map_unmap(int start_addr, int end_addr)
{
unsigned long addr;
uptr addr;
int shift = M68K_MEM_SHIFT;
int i;
addr = (unsigned long)m68k_unmapped_read8;
addr = (uptr)m68k_unmapped_read8;
for (i = start_addr >> shift; i <= end_addr >> shift; i++)
m68k_read8_map[i] = (addr >> 1) | (1 << 31);
addr = (unsigned long)m68k_unmapped_read16;
addr = (uptr)m68k_unmapped_read16;
for (i = start_addr >> shift; i <= end_addr >> shift; i++)
m68k_read16_map[i] = (addr >> 1) | (1 << 31);
addr = (unsigned long)m68k_unmapped_write8;
addr = (uptr)m68k_unmapped_write8;
for (i = start_addr >> shift; i <= end_addr >> shift; i++)
m68k_write8_map[i] = (addr >> 1) | (1 << 31);
addr = (unsigned long)m68k_unmapped_write16;
addr = (uptr)m68k_unmapped_write16;
for (i = start_addr >> shift; i <= end_addr >> shift; i++)
m68k_write16_map[i] = (addr >> 1) | (1 << 31);
}