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
notaz
88fd63ad10
split memories away from Pico
...
saves ~3k of code on ARM because Pico no longer crosses ldr limit
2017-10-14 00:53:08 +03:00
notaz
334f00e24e
vdp timing hacks
2017-10-12 02:56:09 +03:00
notaz
ebd70cb5d9
fix various logging issues
2017-10-12 02:54:46 +03:00
notaz
75b84e4b7c
slightly better z80 vdp reads
2017-10-07 01:36:59 +03:00
notaz
e0bcb7a90d
some support for vdp debug reg
2017-10-03 00:41:13 +03:00
notaz
b71cbbf705
some support for 128k mode
2017-10-03 00:41:10 +03:00
notaz
0c7d1ba332
some dma improvements
...
no idea if anything needs this, shouldn't hurt either
2017-10-03 00:40:21 +03:00
notaz
7feeb88062
make dma honour banking
...
I was sure I had it done before, turns out not.
2017-09-30 20:53:11 +03:00
notaz
ea38612fad
eliminate texrels (wip)
2017-08-06 18:18:29 +03:00
notaz
a93a80deda
cd: integrate new gfx code
2013-09-23 02:11:26 +03:00
notaz
53f948c901
make hcnt code friendly with split timeslices
...
values need to be fixed, they're wrong, wrong wrong...
2013-09-03 02:52:07 +03:00
notaz
08769494e8
cd sync improvements, part2
2013-08-28 02:05:21 +03:00
notaz
ae214f1c37
new timing for main and cd
2013-08-28 01:07:26 +03:00
notaz
e7b3ad1bda
avoid unnecessary logging
2013-07-31 02:58:04 +03:00
notaz
cff531af94
clarify PicoDrive's license
...
- PicoDrive was originally released by fDave with simple
"free for non-commercial use / For commercial use, separate licencing
terms must be obtained" license and I kept it in my releases.
- in 2011, fDave re-released his code (same that I used as base
many years ago) dual licensed with GPLv2 and MAME licenses:
https://code.google.com/p/cyclone68000/
Based on the above I now proclaim that the whole source code is licensed
under the MAME license as more elaborate form of "for non-commercial use".
If that raises any doubt, I announce that all my modifications (which
is the vast majority of code by now) is licensed under the MAME license,
as it reads in COPYING file in this commit.
This does not affect ym2612.c/sn76496.c that were MAME licensed already
from the beginning.
2013-06-26 03:07:07 +03:00
notaz
697746df02
revive pandora and win32 builds, rm gp2x dep for linux, lots of refactoring
...
git-svn-id: file:///home/notaz/opt/svn/PicoDrive@842 be3aeb3a-fb24-0410-a615-afba39da0efa
2009-12-16 23:38:37 +00:00
notaz
ef090115c8
switch DMNA Silpheed hack to timeslice hack
...
git-svn-id: file:///home/notaz/opt/svn/PicoDrive@747 be3aeb3a-fb24-0410-a615-afba39da0efa
2009-08-12 14:06:40 +00:00
notaz
1cfc5cc4ce
lowercasing filenames, part3
...
git-svn-id: file:///home/notaz/opt/svn/PicoDrive@576 be3aeb3a-fb24-0410-a615-afba39da0efa
2008-08-28 12:36:57 +00:00
