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chatGPZ
Registered: Dec 2001
Posts: 11148 |
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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chatGPZ
Registered: Dec 2001
Posts: 11148 |
ok, updated the list a bit... -> http://hitmen.c02.at/files/docs/c64/c64_emulator_bugs.txt |
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assiduous
Account closed
Registered: Jun 2007
Posts: 343 |
- [CCS] Darwin/The Dreams Darwin
"This demo won't run with CCS as it cannot handle DreamLoad's ShutUp-Feature. Then, I don't
think any emu up to now can play the digi-part in original quality."
"A: The demo works in CCS64 v3.3, so it must have been fixed at some point."
The above belongs to "EMULATOR ISSUES THAT HAVE BEEN FIXED", I think. Append Hoxs64 to the list of emulators that can't handle Demo IV properly (it crashes on the last part unlike the real C64). What's wrong with Crazy News preview?
I see that you've included the emucheck list of mine, but it's already outdated. :) Here's the latest, including Cucumber Juice 2 for the sake of completeness, and reflecting emulation improvements in CCS64 v3.3:
Y - test passed, N - emu detected
CCS VICE Hoxs64
Cucumber Juice 2 Y Y Y
Deus Ex Machina Y Y Y
Demus Interruptus Y Y Y
+h Emu-Fuxx0r v1 N N Y
+h Emu-Fuxx0r v2 Y N Y
Waveform Composer Y N Y
Aurora 90% N N N
Krestage 3 Y N Y
valid for: CCS64 v3.3, VICE v1.21, Hoxs64 v1.0.4.23 |
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chatGPZ
Registered: Dec 2001
Posts: 11148 |
fixed, and added a short description to crazy news preview :) |
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assiduous
Account closed
Registered: Jun 2007
Posts: 343 |
- [vice, ccs] Crazy News Preview Crazy News Preview V2
crashes/hangs after selecting something in the main menu of the game (start loading, drive hangs at track 25)
"does not work on CCS nor Vice - works on the real thing"
I can only wonder how it was verified to work on the real thing. In order to make it work in CCS/VICE, make use of the hint in the directory, which says: "rest on side two". Amazingly, the rest is on the side B on the real thing too. ;D |
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chatGPZ
Registered: Dec 2001
Posts: 11148 |
LOL!
/me points at mason
:=)
fixed it in the list :) |
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assiduous
Account closed
Registered: Jun 2007
Posts: 343 |
I've been made aware of a significant CCS64 flaw. Namely it comes packaged with Kernal Revision 2. However iAN CooG claimed to have checked "Leftovers/Shadi Software" with Kernal Rev2 in CCS64 and wrote here that the intro part was all black, while it's blue with the Kernal that CCS64 comes with. Could it be that there are different Rev2 Kernals around?
I found out that "Rick Dangerous/Myth" fails in CCS64 v3.3 with Kernal copied from Hoxs64, which suggests that it's merely a Kernal revision issue. It should be noted that the game works solely with Kernal Rev2 and will fail in any emulator using Kernal Rev3.
Yet another emulator that can't handle Demo IV properly: CCS64. Flickers madly and the music is prone to restarting. Which means that for the time being there's no emulator that would display this part accurately. |
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iAN CooG
Registered: May 2002
Posts: 3138 |
CCS always has a PATCHED rev2, which load $0286 instead of $d021 during jsr $e544. An ugly hybrid I never understood why not simply replace it with a rev3.
I tried with a real rev2, I have something like 40 different kernal roms in CCS\ROMS\ dir to make tests with ;) |
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Frantic
Registered: Mar 2003
Posts: 1630 |
SounDemons noise waveform hacks does not work in emus too, since they don't emulate the aspect of the SID used here (was the intro/demo called "pica" or something like that?). |
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assiduous
Account closed
Registered: Jun 2007
Posts: 343 |
Quote: SounDemons noise waveform hacks does not work in emus too, since they don't emulate the aspect of the SID used here (was the intro/demo called "pica" or something like that?).
"Pico". Granted, CCS64 and VICE can't playback the waveforms as intended (although the former passes the emulator check in Waveform Composer), but did you check with Hoxs64? Numerous fixes were made to it in the past to ensure that these waveforms are handled properly.
iAN CooG, thanks for clearing up the issue with Kernal revisions here. |
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JackAsser
Registered: Jun 2002
Posts: 1994 |
Quote: "Pico". Granted, CCS64 and VICE can't playback the waveforms as intended (although the former passes the emulator check in Waveform Composer), but did you check with Hoxs64? Numerous fixes were made to it in the past to ensure that these waveforms are handled properly.
iAN CooG, thanks for clearing up the issue with Kernal revisions here.
The interlaced girl in the demo Tsunami features 8 bad pixels on her nose when running on VICE (as HCL stated in the note IIRC) |
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