81 lines
1.1 KiB
C
81 lines
1.1 KiB
C
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#ifndef __MEM_H__
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#define __MEM_H__
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#include "defs.h"
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#define MBC_NONE 0
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#define MBC_MBC1 1
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#define MBC_MBC2 2
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#define MBC_MBC3 3
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#define MBC_MBC5 5
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#define MBC_RUMBLE 15
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#define MBC_HUC1 0xC1
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#define MBC_HUC3 0xC3
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struct mbc
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{
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int type;
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int model;
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int rombank;
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int rambank;
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int romsize;
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int ramsize;
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int enableram;
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int batt;
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byte *rmap[0x10], *wmap[0x10];
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};
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struct rom
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{
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byte (*bank)[16384];
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char name[20];
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};
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struct ram
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{
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byte hi[256];
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byte ibank[8][4096];
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byte (*sbank)[8192];
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int loaded;
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};
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extern struct mbc mbc;
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extern struct rom rom;
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extern struct ram ram;
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void mem_updatemap(void);
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void ioreg_write(byte r, byte b);
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void mbc_write(int a, byte b);
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void mem_write(int a, byte b);
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byte mem_read(int a);
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void mbc_reset(void);
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#define READB(a) ( mbc.rmap[(a)>>12] \
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? mbc.rmap[(a)>>12][(a)] \
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: mem_read((a)) )
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#define READW(a) ( READB((a)) | ((word)READB((a)+1)<<8) )
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#define WRITEB(a, b) ( mbc.wmap[(a)>>12] \
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? ( mbc.wmap[(a)>>12][(a)] = (b) ) \
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: ( mem_write((a), (b)), (b) ) )
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#define WRITEW(a, w) ( WRITEB((a), (w)&0xFF), WRITEB((a)+1, (w)>>8) )
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#endif
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