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new memory handling, but asm and mappers need update.

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Some cleanup and magic bit removal as a bonus.


git-svn-id: file:///home/notaz/opt/svn/PicoDrive@768 be3aeb3a-fb24-0410-a615-afba39da0efa
This commit is contained in:
notaz 2009-09-02 16:05:54 +00:00
parent c238eec8f5
commit af37bca858
20 changed files with 1173 additions and 1720 deletions
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26
pico/z80if.c
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@ -6,32 +6,6 @@
unsigned long z80_read_map [0x10000 >> Z80_MEM_SHIFT];
unsigned long z80_write_map[0x10000 >> Z80_MEM_SHIFT];
void MEMH_FUNC z80_map_set(unsigned long *map, int start_addr, int end_addr,
void *func_or_mh, int is_func)
{
unsigned long addr = (unsigned long)func_or_mh;
int mask = (1 << Z80_MEM_SHIFT) - 1;
int i;
if ((start_addr & mask) != 0 || (end_addr & mask) != mask)
elprintf(EL_STATUS|EL_ANOMALY, "z80_map_set: tried to map bad range: %04x-%04x",
start_addr, end_addr);
if (addr & 1) {
elprintf(EL_STATUS|EL_ANOMALY, "z80_map_set: ptr is not aligned: %08lx", addr);
return;
}
if (!is_func)
addr -= (start_addr >> Z80_MEM_SHIFT) << Z80_MEM_SHIFT;
for (i = start_addr >> Z80_MEM_SHIFT; i <= end_addr >> Z80_MEM_SHIFT; i++) {
map[i] = addr >> 1;
if (is_func)
map[i] |= 1 << (sizeof(addr) * 8 - 1);
}
}
#ifdef _USE_MZ80
// memhandlers for mz80 core