Mercurial > repos > blastem
diff psg.h @ 483:3e1573fa22cf
Implement turbo/slow motion feature that overclocks or underclocks the entire system at the push of a button
| author | Mike Pavone <pavone@retrodev.com> |
|---|---|
| date | Tue, 01 Oct 2013 23:51:16 -0700 |
| parents | 140af5509ce7 |
| children | 9a5dc22297f2 |
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--- a/psg.h Wed Sep 18 19:10:54 2013 -0700 +++ b/psg.h Tue Oct 01 23:51:16 2013 -0700 @@ -1,6 +1,6 @@ /* Copyright 2013 Michael Pavone - This file is part of BlastEm. + This file is part of BlastEm. BlastEm is free software distributed under the terms of the GNU General Public License version 3 or greater. See COPYING for full license text. */ #ifndef PSG_CONTEXT_H_ @@ -11,11 +11,12 @@ typedef struct { int16_t *audio_buffer; int16_t *back_buffer; - double buffer_fraction; - double buffer_inc; + uint64_t buffer_fraction; + uint64_t buffer_inc; uint32_t buffer_pos; uint32_t clock_inc; uint32_t cycles; + uint32_t sample_rate; uint32_t samples_frame; uint16_t lsfr; uint16_t counter_load[4]; @@ -30,6 +31,7 @@ void psg_init(psg_context * context, uint32_t sample_rate, uint32_t master_clock, uint32_t clock_div, uint32_t samples_frame); +void psg_adjust_master_clock(psg_context * context, uint32_t master_clock); void psg_write(psg_context * context, uint8_t value); void psg_run(psg_context * context, uint32_t cycles);