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Author SHA1 Message Date
Gyorgy Szombathelyi
abb84a72d2 C64: simulate a glitch in the C64C PLA 
Enough for Undead by Emulamer
 2020-04-29 22:51:34 +02:00
Gyorgy Szombathelyi
ae220f263d C64: [T65] unstable undocumented opcode fixes 2020-04-29 01:43:02 +02:00
Gyorgy Szombathelyi
c8d7084e2c C64: VIC-II open bus fetch is not always FF 
Fixes Emulamer Errata part3, Ruined Art
 2020-04-27 00:36:31 +02:00
Gyorgy Szombathelyi
57250c229d C64: [VIC2] Fix sprite shift register behavior 2020-04-27 00:35:41 +02:00
Gyorgy Szombathelyi
34e3f0eb2b C64: center OSD 2020-04-24 22:13:32 +02:00
Gyorgy Szombathelyi
edbb59cefa C64: [VIC2] adjust shiftLoadEna flag 2020-04-24 22:00:15 +02:00
Gyorgy Szombathelyi
9bdb3165e1 C64: [VIC2] All non-transparent sprite pixels can collide 2020-04-24 21:24:54 +02:00
Gyorgy Szombathelyi
a7ae043873 C64: add SPI ports to SDC 2020-04-24 18:35:46 +02:00
Gyorgy Szombathelyi
0058896fce C64: [VIC2] silence warnings 2020-04-24 18:35:23 +02:00
Gyorgy Szombathelyi
3e7e798774 C64: [VIC2] don't enable SR reload outside the display area 2020-04-24 18:31:56 +02:00
Gyorgy Szombathelyi
51da86634c C64: [VIC2] fix VIC address out (phi1test.prg) 2020-04-23 21:36:16 +02:00
Gyorgy Szombathelyi
5a6e03ab68 C64: [VIC2] collision register clear timing adjustment 2020-04-23 21:16:16 +02:00
Gyorgy Szombathelyi
597669726f Add .gitignores 2020-04-18 20:29:31 +02:00
Gyorgy Szombathelyi
a994ef5005 PlusToo: update the CPU and some internal stuff 2020-04-18 19:35:24 +02:00
Gyorgy Szombathelyi
68c5f767ad C64: [VIC2] don't change in middle of a multi-color (double width) pixel 2020-04-16 17:32:50 +02:00
Gyorgy Szombathelyi
4483550cc0 C64: cleanup clock phases 2020-04-15 23:04:02 +02:00
Gyorgy Szombathelyi
18cb75150b C64: [VIC2] Timing changes of register latching 
Checked with various tests:
- Splittests all succesful, except border color's 1 pixel shift
- Spritex/testsuite.prg
 2020-04-15 18:02:59 +02:00
Gyorgy Szombathelyi
dcebde49cf C64: load whole ROM via OSD menu 2020-04-15 00:27:16 +02:00
Gyorgy Szombathelyi
e20b110731 C64: [C1541] use programmed value for speedzone 2020-04-13 21:14:29 +02:00
Gyorgy Szombathelyi
82dfa12c09 C64: [C1541] Unconnected VIA ports are 1 2020-04-13 21:13:10 +02:00
Gyorgy Szombathelyi
81b0dac3d0 C64: [C1541] handle simultanious reload and write to TA LO 
Fixes VIA5 A,B tests
 2020-04-13 19:38:09 +02:00
Gyorgy Szombathelyi
8bc755a1fe C64: [C1541] Fix VIA Timer A irq generation + PB output 2020-04-13 17:35:21 +02:00
Gyorgy Szombathelyi
29d579eada C64: [T65] don't delay IRQ with branches when not RDY 
Fixes Trick & Treat demo glitches due to too big IRQ delays
TODO:
- check with Visual6502?
- do the same with NMI?
 2020-04-12 23:11:52 +02:00
Gyorgy Szombathelyi
f7282ddd1d Bump mist-modules 2020-04-10 23:44:24 +02:00
Gyorgy Szombathelyi
9f95e3f2f6 C64: [VIC2] sprite improvements 2020-04-10 22:29:07 +02:00
Gyorgy Szombathelyi
1d8321deb6 C64: formatting 2020-04-08 20:25:24 +02:00
Gyorgy Szombathelyi
157d62d0b7 C64: remove unused files from project 2020-04-07 23:38:22 +02:00
Gyorgy Szombathelyi
7030db2db0 C64: better handling of AEC signal 2020-04-07 22:49:13 +02:00
Gyorgy Szombathelyi
87f9d2ebe4 C64: [VIC2] Reload the sprite shift register at once 2020-04-07 18:19:34 +02:00
Gyorgy Szombathelyi
14f0018785 C64: [VIC2] Delay at the beginning of the pipeline, not at the end 2020-04-07 15:44:21 +02:00
Gyorgy Szombathelyi
8d637b3a67 C64: [VIC2] more precise(?) rasterX check for borders 2020-04-06 00:09:19 +02:00
Gyorgy Szombathelyi
fc8c2134e0 C64: fix the previous fix 2020-04-05 23:28:58 +02:00
Gyorgy Szombathelyi
3cd4197b71 C64: fix color input to VIC-II when BA is asserted but AEC is not 2020-04-05 15:11:56 +02:00
Gyorgy Szombathelyi
137f28df74 C64: explicit '0' for clkref_n 2020-04-05 15:10:28 +02:00
Gyorgy Szombathelyi
3def547c25 C64: VIC II gets "FF" if AEC is not asserted, but BA is in the CPU cycle 2020-04-01 20:19:34 +02:00
Gyorgy Szombathelyi
b6082dd6fc C64: [VIC2] change sprite counters as in the VIC-II Addendum 2020-04-01 20:10:32 +02:00
Gyorgy Szombathelyi
d511600ad5 C64: [VIC2] Use din for nextChar when BA activated 
Fix vertical line glitch in Tsunami, Krestage 3
 2020-03-30 20:59:53 +02:00
Gyorgy Szombathelyi
02ef4965d7 C64: [VIC2] Load zero to the attribute when idle (regression) 2020-03-30 20:10:45 +02:00
Gyorgy Szombathelyi
b024c40542 C64: [1541] Bitrate varies with track ranges 2020-03-30 19:30:20 +02:00
Gyorgy Szombathelyi
bca689edd7 C64: remove redundant files 2020-03-30 19:30:12 +02:00
Gyorgy Szombathelyi
2cc65c3a81 C64: [VIC2] timing adjustments 
...makes a lot of VIC II tests succeed, also the cycles are in the
correct place now (they were off by one)
 2020-03-28 17:53:15 +01:00
Gyorgy Szombathelyi
4914310668 C64: [VIC2] implement sprite enables as described in the VICII article 2020-03-23 18:47:59 +01:00
Gyorgy Szombathelyi
11679a3e2b C64: [VIC2] implement border flip-flops 
Passes border open timing VICE tests in PAL mode
Seems the pixel generator outputs wrong colors in open borders
 2020-03-23 16:41:07 +01:00
Gyorgy Szombathelyi
08fdc65d69 [C64] T65: detect IRQ even when not RDY 
Fixes Tsunami demo

Waiting for RDY while the interrupt already asserted causes too much
delay. The interrupt cycle will still start at the correct position,
as soon as the RDY line is de-asserted, and other conditions are satisfied.
 2020-03-23 16:17:21 +01:00
Gyorgy Szombathelyi
adf959ff54 Update mist-modules 2020-03-18 12:05:11 +01:00
Gyorgy Szombathelyi
2aab723f24 C64: [VIC2] Fix sprite priority by vpelletier 
If a lower-index background-priority (1) sprite's opaque pixel intersects
with a higher-index foreground-priority (0) sprite's opaque pixel, and the
screen bitmap has a foreground color at that same position, then the
screen bitmap's foreground color is visible.
This is counter-intuitive, as higher-index sprite's pixel alone would mask
the bitmap color, and adding another sprite top of it makes the bitmap
visible again, but this is how the VICII works.
 2020-03-17 20:48:14 +01:00
Gyorgy Szombathelyi
84958b72b8 C64: [VIC2] sprite-sprite collisions happen even in the border area 
Fixes Errata demo
 2020-03-17 20:03:52 +01:00
Gyorgy Szombathelyi
491e71d63e C64: [VIC2] fix yraster reset condition 
Fixes Baby Blues+2 demo

I wonder why was it done like that - maybe sprites 0-2
on the first line will break now
 2020-03-17 18:35:13 +01:00
Gyorgy Szombathelyi
7e773b1a1e C64: update ZP registers after PRG load 2020-03-17 14:14:06 +01:00
Gyorgy Szombathelyi
5db02e298e C64: use two sets of not-used cycles for extra sdram access 2020-03-17 10:47:15 +01:00