68 commits

Author	SHA1	Message	Date
kub	f591b83785	core vdp, minor fifo write optimisation	2022-03-08 09:46:57 +00:00
kub	4f6d3b2847	core vdp, optimize fifo writes	2022-02-19 21:23:54 +00:00
kub	3b68e5107d	core vdp, fix obscure VInt bug, some more optimisation	2022-02-14 20:55:35 +00:00
kub	4496577e40	core gfx, fix sprite problem in savestate load screen	2022-02-08 22:05:00 +00:00
kub	8eada9d64c	core vdp, optimisation	2022-02-05 21:37:03 +00:00
kub	fc7ce3cc92	core, fix for vdp save/load regression	2022-01-07 07:32:37 +01:00
kub	e45908d734	vdp, improve save state handling (bg dma)	2022-01-06 22:37:28 +01:00
kub	6488bec805	core, fix for vdp save/load regression	2022-01-04 17:49:24 +01:00
kub	b72662e224	core, improve vdp save/load	2022-01-03 23:34:44 +01:00
kub	22a548f512	core vdp, more fixes for cpu write access and save/load	2021-12-10 23:34:03 +01:00
kub	fda7339b94	core vdp, fix FIFO DMA wait, improve save/load	2021-12-07 23:59:53 +01:00
kub	df18e715ac	vdp, some finetuning, cleanup	2021-06-08 22:26:24 +02:00
kub	1886ac5f30	VDP DMA/CPU access timing improvements	2021-05-27 21:30:45 +02:00
kub	4d4bea1c5f	vdp fifo, adjust latency delay	2021-03-23 22:39:17 +01:00
kub	4cc0fcaf15	fixes and improvements for type issues, part 3	2021-02-06 01:14:07 +01:00
kub	f821bb7011	core, structural cleanup, fixes and improvements for type issues #2	2021-01-01 12:44:02 +01:00
kub	15eed40550	core, fixes and improvements for type issues	2020-12-29 11:27:11 +01:00
kub	7c5227a490	vdp, fix for loading saved gfx state	2020-12-14 21:12:25 +01:00
kub	dda72beae4	vdp, fix for 68k access timing	2020-12-12 17:29:31 +01:00
kub	1613ec6c30	vdp, kludge for z80 access	2020-12-12 17:27:30 +01:00
kub	3618d636d2	vdp rendering, fix SAT caching for high addresses >64KB	2020-10-07 20:12:23 +02:00
kub	e721f80136	vdp, fix for gfx save/load menu bg	2020-09-21 21:02:51 +02:00
kub	dc56ca2ede	vdp fifo, tentative fix for hanging DMA	2020-09-18 00:25:14 +02:00
kub	bb83412c51	vdp fifo, DMA bugfix	2020-06-21 22:32:37 +02:00
kub	2a2e0f890a	vdp fifo, bugfix	2020-04-22 21:51:35 +02:00
kub	86198e034b	vdp DMA optimizations	2020-04-02 20:18:39 +02:00
kub	02138162c4	vdp fifo speed optimization	2020-03-27 19:32:45 +01:00
kub	bd73e6eec0	vdp rendering, fix for CD (sprites from WORD RAM)	2020-03-27 19:22:19 +01:00
kub	c55a44a88c	vdp fifo speed optimization	2020-03-14 19:52:27 +01:00
kub	20fafa7127	hvcounter table resolution reduced	2020-03-14 19:30:28 +01:00
kub	b6bdccb747	vdp, some small improvements	2020-03-03 20:32:38 +01:00
kub	49790e265a	vdp, tentative fix for save/load compatibility	2020-02-27 21:31:04 +01:00
kub	3c6da92ba0	vdp fifo, refined timing	2020-02-26 20:27:32 +01:00
kub	e72bc9099c	vdp sprite rendering fix	2020-02-23 20:15:07 +01:00
kub	787a0af9dc	vdp fifo, another revision	2020-02-23 11:33:02 +01:00
kub	25be5c52b0	vdp sprite handling improvement (SAT cache)	2020-02-16 14:10:14 +01:00
kub	daf29df963	vdp fifo, tentative fix for broken save/load	2020-02-16 14:08:48 +01:00
kub	987f079749	vdp fifo: kludge for DMA fill interrupted by CPU	2020-02-08 23:42:34 +01:00
kub	17bd69adc6	revised VDP fifo implementation	2020-02-07 22:14:34 +01:00
kub	e1e7d1ed1c	improved VRAM128K support (overdrive 2)	2020-01-26 20:48:25 +01:00
kub	1259ac4f60	VDP timing improvements	2020-01-26 20:46:21 +01:00
kub	5f0d224e18	sprite rendering improvements for masking and limit edge cases	2020-01-26 20:40:07 +01:00
kub	43e1401008	emulator timing fixes, VDP DMA fixes, improved DAC audio	2020-01-14 23:00:44 +01:00
kub	b1a047c926	reworked palette and buffer handling due to some 32X bugs	2019-07-30 16:34:40 +02:00
kub	2c479106af	arm asm syntax fixes for open2x	2019-07-30 16:34:40 +02:00
notaz	310d973b9e	don't spam DMA message ... VR US triggers this	2018-01-21 19:03:51 +02:00
notaz	eef77d7a8b	handle 'bad' dma better	2017-10-21 00:02:38 +03:00
notaz	93f9619ed8	rearrange globals ... scripted find/replace gives slightly better code on ARM, less unnecessary asm, ~400 bytes saved	2017-10-20 12:21:09 +03:00
notaz	0e4bde9b2d	rework sr ... note to self: h32 0x10A .. 0x127 0x1D2 .. 0x1FF 0x000 .. 0x109 pclk 30 | 46 | 266 = 342 hbset 0x126 ... 0x009 pclk 29 | 1 + 46 + 10 | 256 mclk 290 | 570 | 2560 = 3420 68kclk 41.4 81.4 365.7 ~= 488.5 h40 0x14A .. 0x16C 0x1C9 .. 0x1FF 0x000 .. 0x149 pclk 35 | 55 | 330 = 420 hbset 0x166 ... 0x00A pclk 28 | 7 + 55 + 11 | 319 mclk 28*8 | 7*8 4*8+314+10+(18+11)*8 | 319*8 = 3420 68kclk 32 92 364.5 ~= 488.5	2017-10-14 00:53:08 +03:00
notaz	22814963cc	some irq hacks ... notes to self (derived from Nemesis): H32: 0x10A .. 0x127 0x1D2 .. 0x1FF 0x000 0x001 pclk 30 46 1 |0x109 mclk 770 | 2650 = 3420 68kclk 110 378.5 ~= 488.5 H40: 0x14A .. 0x16C 0x1C9 .. 0x1FF 0x000 0x001 pclk 35 55 1 mclk 35*8 4*8+314+10+19*8 |0x149*8 788 | 2632 = 3420 68kclk 112.5 376 ~= 488.5	2017-10-14 00:53:08 +03:00