Mercurial > repos > blastem
diff sms.c @ 2196:2648081f3100
Implement Game Gear PSG panning
| author | Michael Pavone <pavone@retrodev.com> |
|---|---|
| date | Sun, 21 Aug 2022 23:14:08 -0700 |
| parents | 40290a923886 |
| children | 74b92e20e2ef |
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--- a/sms.c Sun Aug 21 22:56:32 2022 -0700 +++ b/sms.c Sun Aug 21 23:14:08 2022 -0700 @@ -212,16 +212,12 @@ //TODO: implement link port return vcontext; } - -static uint8_t psg_pan_read(uint32_t location, void *vcontext) -{ - //TODO: implement PSG pan - return 0xFF; -} - static void *psg_pan_write(uint32_t location, void *vcontext, uint8_t value) { - //TODO: implement PSG pan + z80_context *z80 = vcontext; + sms_context *sms = z80->system; + psg_run(sms->psg, z80->Z80_CYCLE); + sms->psg->pan = value; return vcontext; } static memmap_chunk io_map[] = { @@ -233,7 +229,7 @@ static memmap_chunk io_gg[] = { {0x00, 0x07, 0xFF, .read_8 = gg_io_read, .write_8 = gg_io_write}, - {0x07, 0x08, 0xFF, .read_8 = psg_pan_read, .write_8 = psg_pan_write}, + {0x07, 0x08, 0xFF, .write_8 = psg_pan_write}, {0x08, 0x40, 0xFF, .write_8 = memory_io_write}, {0x40, 0x80, 0xFF, .read_8 = hv_read, .write_8 = sms_psg_write}, {0x80, 0xC0, 0xFF, .read_8 = vdp_read, .write_8 = vdp_write},