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sms, improve ROM bank mapping, add some SRAM support

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This commit is contained in:
kub 2021-10-03 23:59:09 +02:00
parent 15caa286fc
commit b784d4a5f7
4 changed files with 69 additions and 11 deletions
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2
pico/memory.h
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@ -38,7 +38,7 @@ extern void s68k_write16(u32 a, u16 d);
extern void s68k_write32(u32 a, u32 d);
// z80
#define Z80_MEM_SHIFT 13
#define Z80_MEM_SHIFT 10 // must be <=10 to allow 1KB pages for SMS Sega mapper
extern uptr z80_read_map [0x10000 >> Z80_MEM_SHIFT];
extern uptr z80_write_map[0x10000 >> Z80_MEM_SHIFT];
typedef unsigned char (z80_read_f)(unsigned short a);