megadrive_test1
annotate src/io.h @ 6:862f8a034cae
expanding the megadrive code
| author | John Tsiombikas <nuclear@member.fsf.org> |
|---|---|
| date | Sat, 11 Feb 2017 08:56:42 +0200 |
| parents | |
| children |
| rev | line source |
|---|---|
| nuclear@6 | 1 #ifndef IO_H_ |
| nuclear@6 | 2 #define IO_H_ |
| nuclear@6 | 3 |
| nuclear@6 | 4 #define IO_VERSION (*(unsigned char*)0xa10001) |
| nuclear@6 | 5 |
| nuclear@6 | 6 #define IO_VER_MASK 0x0f |
| nuclear@6 | 7 #define IO_VER_DISK 0x20 |
| nuclear@6 | 8 #define IO_VER_VMOD 0x40 |
| nuclear@6 | 9 #define IO_VER_MODE_BIT 0x80 |
| nuclear@6 | 10 |
| nuclear@6 | 11 #define IO_Z80_MEM_START 0xa00000 |
| nuclear@6 | 12 |
| nuclear@6 | 13 int mdg_version(void); |
| nuclear@6 | 14 int mdg_ispal(void); |
| nuclear@6 | 15 |
| nuclear@6 | 16 #endif /* IO_H_ */ |