11 Commits

Author	SHA1	Message	Date
Irmen de Jong	a878c9a61d	add some documentation to the psg module	2022-08-19 22:17:23 +02:00
Irmen de Jong	35af53828a	fix endless loop in optimizer, fix cx16 register clobbering in psg interrupt handler, fix crash on certain arrays, fix undefined symbol when it's in another imported module	2022-07-13 18:42:06 +02:00
Irmen de Jong	c51c1da618	psg micro optimizations	2022-07-03 11:55:13 +02:00
Irmen de Jong	ea2812f50f	add max volume to psg envelope	2022-07-03 11:26:56 +02:00
Irmen de Jong	3ec05709d5	convert the sounds in cx16 tehtriz to use the psg module instead	2022-07-03 01:40:29 +02:00
Irmen de Jong	4bdac7404a	added sustain to psg envelope	2022-07-03 00:55:25 +02:00
Irmen de Jong	064d412ec8	added cx16.push_vera_context() and cx16.pop_vera_context() for use in irq handlers	2022-07-02 23:13:00 +02:00
Irmen de Jong	7fff4f249d	optimize msb(cx16.r0) -> cx16.r0H, lsb(cx16.r0) -> cx16.r0L	2022-07-02 21:38:22 +02:00
Irmen de Jong	7a3745f642	psg tweaks	2022-07-02 20:33:40 +02:00
Irmen de Jong	f8658f6afa	precalc vera freq to not use floating point math anymore	2022-07-02 19:40:18 +02:00
Irmen de Jong	223b725a10	psg abstraction and attack/release envelope	2022-07-02 18:47:12 +02:00