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Rockboy - gameboy emulation for rockbox, based on gnuboy. Still a bit early, but already playable on iRiver H1xx and the simulators. The archos recorder version is currently rather slow...

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git-svn-id: svn://svn.rockbox.org/rockbox/trunk@6104 a1c6a512-1295-4272-9138-f99709370657
This commit is contained in:
Jens Arnold 2005-03-02 23:49:38 +00:00
parent 48dad47df9
commit 384de10246
56 changed files with 9225 additions and 1 deletions
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80
apps/plugins/rockboy/mem.h Normal file
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#ifndef __MEM_H__
#define __MEM_H__
#include "defs.h"
#define MBC_NONE 0
#define MBC_MBC1 1
#define MBC_MBC2 2
#define MBC_MBC3 3
#define MBC_MBC5 5
#define MBC_RUMBLE 15
#define MBC_HUC1 0xC1
#define MBC_HUC3 0xC3
struct mbc
{
int type;
int model;
int rombank;
int rambank;
int romsize;
int ramsize;
int enableram;
int batt;
byte *rmap[0x10], *wmap[0x10];
};
struct rom
{
byte (*bank)[16384];
char name[20];
};
struct ram
{
byte hi[256];
byte ibank[8][4096];
byte (*sbank)[8192];
int loaded;
};
extern struct mbc mbc;
extern struct rom rom;
extern struct ram ram;
void mem_updatemap(void);
void ioreg_write(byte r, byte b);
void mbc_write(int a, byte b);
void mem_write(int a, byte b);
byte mem_read(int a);
void mbc_reset(void);
#define READB(a) ( mbc.rmap[(a)>>12] \
? mbc.rmap[(a)>>12][(a)] \
: mem_read((a)) )
#define READW(a) ( READB((a)) | ((word)READB((a)+1)<<8) )
#define WRITEB(a, b) ( mbc.wmap[(a)>>12] \
? ( mbc.wmap[(a)>>12][(a)] = (b) ) \
: ( mem_write((a), (b)), (b) ) )
#define WRITEW(a, w) ( WRITEB((a), (w)&0xFF), WRITEB((a)+1, (w)>>8) )
#endif