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...

git-svn-id: svn://svn.rockbox.org/rockbox/trunk@6104 a1c6a512-1295-4272-9138-f99709370657

1 files changed, 80 insertions, 0 deletions

diff --git a/apps/plugins/rockboy/mem.h b/apps/plugins/rockboy/mem.h
new file mode 100644
index 0000000000..7926e2eda9
--- /dev/null
+++ b/apps/plugins/rockboy/mem.h
@@ -0,0 +1,80 @@
+
+#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
+
+
+