diff options
Diffstat (limited to 'src/emu/sound/upd7759.h')
-rw-r--r-- | src/emu/sound/upd7759.h | 31 |
1 files changed, 31 insertions, 0 deletions
diff --git a/src/emu/sound/upd7759.h b/src/emu/sound/upd7759.h new file mode 100644 index 00000000000..1471f6c2681 --- /dev/null +++ b/src/emu/sound/upd7759.h @@ -0,0 +1,31 @@ +#ifndef UPD7759S_H +#define UPD7759S_H + +/* There are two modes for the uPD7759, selected through the !MD pin. + This is the mode select input. High is stand alone, low is slave. + We're making the assumption that nobody switches modes through + software. */ + +#define UPD7759_STANDARD_CLOCK 640000 + +struct upd7759_interface +{ + int region; /* memory region (per chip, standalone mode only) */ + void (*drqcallback)(int param); /* drq callback (per chip, slave mode only) */ +}; + +void upd7759_set_bank_base(int which, offs_t base); + +void upd7759_reset_w(int num, UINT8 data); + +void upd7759_port_w(int num, UINT8 data); +void upd7759_start_w(int num, UINT8 data); +int upd7759_busy_r(int num); + +WRITE8_HANDLER( upd7759_0_reset_w ); +WRITE8_HANDLER( upd7759_0_port_w ); +WRITE8_HANDLER( upd7759_0_start_w ); +READ8_HANDLER( upd7759_0_busy_r ); + +#endif + |