kub
133006a9d4
core, improve 68K/Z80 timing
2023-04-24 23:50:06 +02:00
kub
134092feb7
md, implement z80 cycle stealing when accessing 68k bus
...
this fixes sound issues in Overdrive 2
2023-04-05 20:02:47 +02:00
kub
d515a352b3
core vdp, fix sprite rendering issues with Overdrive 1/2
2023-04-05 20:00:37 +02:00
kub
572cf80e38
core vdp, fix regression (switching V30->V28 in lines 225-239)
2023-02-07 23:10:22 +00:00
kub
2c4675a993
core, fix cpu sync regression
2022-10-16 20:17:42 +00:00
kub
c9d5f41b0a
32x, minor poll detection fix
2022-10-14 18:42:43 +00:00
kub
fdaf9d10bd
core, improve mcd+32x cpu synchronization
2022-10-12 21:44:32 +00:00
kub
099f68c22a
core vdp, fix regression after last commit
2022-02-15 22:15:12 +00:00
kub
3b68e5107d
core vdp, fix obscure VInt bug, some more optimisation
2022-02-14 20:55:35 +00:00
kub
9f1d5acdb4
sound, fix pcm/pwm handling wrt fast forward (mcd, 32x, pico)
2022-02-07 21:09:13 +00:00
kub
02d753e346
md, fix irq priority handling for H-int
2021-04-10 21:34:48 +02:00
kub
dda72beae4
vdp, fix for 68k access timing
2020-12-12 17:29:31 +01:00
kub
8d67848ddf
fix for 68K cycle accounting
2020-03-27 19:27:05 +01:00
kub
c55a44a88c
vdp fifo speed optimization
2020-03-14 19:52:27 +01:00
kub
478a1164fe
fix for VINT while DMA is running
2020-02-27 21:19:37 +01:00
kub
17bd69adc6
revised VDP fifo implementation
2020-02-07 22:14:34 +01:00
kub
1259ac4f60
VDP timing improvements
2020-01-26 20:46:21 +01:00
kub
43e1401008
emulator timing fixes, VDP DMA fixes, improved DAC audio
2020-01-14 23:00:44 +01:00
kub
8ac9ab7fcb
audio: added SSG-EG to YM2612, plus some timing changes for SN76496+YM2612
2020-01-08 00:49:13 +01:00
notaz
0a0073dc9f
fix a corner case with h-int
2018-01-28 19:13:01 +02:00
notaz
6311a3baf5
move more globals to PicoInterface
...
similar reasons as before
2017-10-22 02:13:46 +03:00
notaz
35f2b65ef7
add 68k overclocking support
2017-10-20 12:21:09 +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
12f23dac6f
famec: split fm68k_emulate
...
in FAMEC_NO_GOTOS mode at least
2017-10-15 00:45:55 +03:00
notaz
e9a11abb3c
drop some unnecessary inlines
...
apparently somebody compiles with msvc?
2017-10-14 00:53:09 +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
3162a7104c
adjust z80 timing a bit
2017-10-12 02:54:46 +03:00
notaz
e42a47e208
some more risky timing changes
...
But should be closer to the real thing.
Let's see what this will break...
2017-10-12 02:54:41 +03:00
notaz
5d638db094
handle frequent psg updates
2017-10-07 01:36:59 +03:00
notaz
4f2cdbf551
clean up dac code a bit
2017-10-07 01:36:59 +03:00
notaz
ea38612fad
eliminate texrels (wip)
2017-08-06 18:18:29 +03:00
notaz
99ade2ee2f
famec: remove unused dual code
2013-09-24 03:57:43 +03:00
notaz
fa8fb75445
handle 32x+cd
2013-09-16 02:03:29 +03:00
notaz
a4dfdb6de1
general timing hacks
2013-09-06 02:40:37 +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
89dbbf2b2f
rename cd/pico.c -> cd/mcd.c
2013-08-28 02:24:46 +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
531a8f3883
improve input handling
2013-08-17 03:38:47 +03:00
notaz
3e5b912cf8
minor 68k timing tuning
2013-08-10 17:58:23 +03:00
notaz
12da51c27a
some new cpu debug code
2013-08-10 17:57:54 +03:00
notaz
19886062f1
rework sh2 sync, again..
...
also some new debug and poll code
VF seems to be ok at least..
2013-07-27 22:23:52 +03:00
notaz
a8fd6e3761
32x: rework scheduling/timing
...
- don't run in line quantity
- decouple from 68k
- some things to tune..
2013-07-09 03:30:58 +03:00
notaz
ed4402a7df
32x: start reworking sheduling
2013-07-09 01:44:56 +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
1d7a28a723
32x: watchdog for Star Wars, SCI IRQs for X-men (also needs idle loop hacks)
...
git-svn-id: file:///home/notaz/opt/svn/PicoDrive@799 be3aeb3a-fb24-0410-a615-afba39da0efa
2009-10-01 20:53:36 +00:00
notaz
236990cf77
32x: improve 'simple' scheduling, works for 'interesting' games
...
git-svn-id: file:///home/notaz/opt/svn/PicoDrive@798 be3aeb3a-fb24-0410-a615-afba39da0efa
2009-10-01 10:21:43 +00:00
