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chatGPZ
Registered: Dec 2001
Posts: 11386 |
C64 Emulator Bugs
after stumbling about a bunch of VICE bugs myself in the last couple of days i have decided to compile a list with issues current emulators have. the goals for this are
- make people aware that emulators are by far not perfect (yet?)
- make it easier for emulator authors to improve the emulators, by showing problematic programs and possibly provide simple testcases
- allow c64 coders to implement emulator detection if desired
so well, check this: http://hitmen.c02.at/files/docs/c64/c64_emulator_bugs.txt
help welcomed :)
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assiduous
Account closed
Registered: Jun 2007
Posts: 343 |
Quote:I edited my release goof remarks accordingly.
thanks for this and for extensive testing. most people just post "Teh Sihte doesnt wurk in VICE" and dont bother to check in the other emus let alone the real thing;) |
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iAN CooG
Registered: May 2002
Posts: 3195 |
Magic Risk/Rebels
Magic Risk
part "E.*" shows only a black screen in Vice 2.x
Works in Hoxs64 1.0.5.25 |
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Rubi
Account closed
Registered: Apr 2002
Posts: 48 |
Quote: Magic Risk/Rebels
Magic Risk
part "E.*" shows only a black screen in Vice 2.x
Works in Hoxs64 1.0.5.25
This is fixed in SVN trunk now. Thanks for the report. |
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iAN CooG
Registered: May 2002
Posts: 3195 |
Quote: This is fixed in SVN trunk now. Thanks for the report.
Thank you for the prompt fix. Rebuilt today and demo works now.
I've here some new patches to submit, testing now. |
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iAN CooG
Registered: May 2002
Posts: 3195 |
Quote:
- [vice] FlyingSharkPreview+-Ikari&FAC Flying Shark Preview +
"Another one here... When running it in Vice it goes into grey screen and gives cpu jam. If I run it on the real c64 and on ccs it works fine."
Doesn't run because there is a wrong JMP $0810 in the relocating code after
the intro, which should be JMP $080D.
(C:$045e) d 45e
.C:045e A9 36 LDA #$36
.C:0460 85 01 STA $01
.C:0462 A0 B7 LDY #$B7
.C:0464 A2 00 LDX #$00
.C:0466 BD 00 18 LDA $1800,X
.C:0469 9D 00 08 STA $0800,X
.C:046c E8 INX
.C:046d D0 F7 BNE $0466
.C:046f EE 68 04 INC $0468
.C:0472 EE 6B 04 INC $046B
.C:0475 88 DEY
.C:0476 D0 EC BNE $0464
.C:0478 4C 10 08 JMP $0810 ; A here is $FF, fetched from $CEFF
(C:$0834) d 080d
.C:080d 78 SEI
.C:080e A9 34 LDA #$34
.C:0810 85 01 STA $01 ;<- sets $01 = $ff when jumping here
.C:0812 A0 C4 LDY #$C4
.C:0814 B9 3C 08 LDA $083C,Y
.C:0817 99 F8 00 STA $00F8,Y
A quick workaround to make it work in any emu and real C64 without patching
the prg is to load it and, before running, issue this poke:
POKE 52991,0:RUN
Or simply fill the memory with 0, but the only important location is $CEFF.
This way at the end of relocation A would be 0, $01 will be set to all ram
and the depack will occour without problems.
CCS64 have reversed fill patterns, and it has $00 at $CEFF, that's why this
crack works there. A real C64, Vice and Hoxs have $ff there, unless you fill
the memory in a different way, of course.
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null
Account closed
Registered: Jun 2006
Posts: 645 |
I don't know if this is the right place to post, but here we go...
I was wondering when we can get some ACTUAL fullscreen support in vice under linux... since as it is now, it just 'zooms in'.. meaning that if I move my cursor around I can just navigate across my desktop...
if MPlayer and VLC can go fullscreen, why can't Vice? I know that vice's fullscreen mode changes res, but it would be nice if there was an option to just scale the image or something (with or without keeping aspect ratio).
oh, and for christs sake.. please add a "force true drive emulation" option... I don't see the whole point in NOT having it on anyways...
------------------------------------
http://zomgwtfbbq.info |
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assiduous
Account closed
Registered: Jun 2007
Posts: 343 |
Quote:I was wondering when we can get some ACTUAL fullscreen support in vice under linux... since as it is now, it just 'zooms in'.. meaning that if I move my cursor around I can just navigate across my desktop...
you have a better chance of having your feature request considered if you post it on sourceforge,this thread is for C64 Emulator Bugs ie.progs that dont work or work incorrectly in the emus. |
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chatGPZ
Registered: Dec 2001
Posts: 11386 |
there is a sdl port in the works (which will have a user interface vaguely similar to ccs) - that one will easily do "real" fullscreen :)
and the truedrive thing... it will be in 2.1 *afaik* :) |
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Scout
Registered: Dec 2002
Posts: 1570 |
Found a bug in the DTV emulator of WinVice 2.1.
I checked, and this bug was also in the VicePlus 1.10 version.
It's about the implementation of the $D03C DTV-VIC address.
If $D011 is set to #$1B and bits 5 (cpu bad line disable) and/or 6 (chunky enable) of $D03C are set, Vice should give garbage on the screen but instead it gives a normal picture.
Just found that out while testing Of je worst lust
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iAN CooG
Registered: May 2002
Posts: 3195 |
[Vice 2.1/2.1.2]
These are all VIC-II issues in Vice found while I was ripping intros from these releases, they all work in Hoxs and CCS:
Lemon Blues +2PH/Avantgarde
Some "garbage" shown until logo appears.
Tank +/Triangle
Sprite logo in upper border flashes, should be stable.
Angle+/Topaz
Screen is instable
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