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Shadow
Account closed
Registered: Apr 2002
Posts: 355 |
Was VSP and/or AGSP ever used in any commercial games?
I read that the recently released "Scramble 2010" preview was using VSP for the scrolling.
That made me wonder if any of the commercial games back in the day used such techniques?
Considering that it causes crashes on some C64s I think that it wouldn't have made it past QA, but maybe testing wasn't all that thorough back then...
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iAN CooG
Registered: May 2002
Posts: 3197 |
Quote: what btw is the smallest method to check for true-drive in code?
probably a bit empiric, but sending an UI and then reading error msg
TDE on:
73,cbm dos v2.6 1541,00,00
TDE off and VTD on:
73,virtual drive emulation v2.2,00,00
or
73,vice fs driver v2.0,00,00
(depending if a d64 is mounted or using directly the file system)
TDE off and VTD off:
?device not present
dunno about other emulators =) |
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iopop
Registered: Dec 2001
Posts: 317 |
Quote: turn true drive emu on.
OT, but that got to be the c64scene's answer to "Have you tried turning it off and on again?"... |
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Oswald
Registered: Apr 2002
Posts: 5094 |
Quote: OT, but that got to be the c64scene's answer to "Have you tried turning it off and on again?"...
yeah. designwise vice sucks at this point like bloody fucking hell. since when do programs change their own options without explicitly asked by the user? |
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Jetboy
Registered: Jul 2006
Posts: 337 |
Quote: yeah. designwise vice sucks at this point like bloody fucking hell. since when do programs change their own options without explicitly asked by the user?
IT's have been pain in the ass for ages, i wonder why auto tde off-switching wasn't disabled. |
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assiduous
Account closed
Registered: Jun 2007
Posts: 343 |
Quote:dunno about other emulators =)
the other emulators donot have any virtual drive crap and just always use "true drive emulation". |
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Graham
Account closed
Registered: Dec 2002
Posts: 990 |
Quote: probably a bit empiric, but sending an UI and then reading error msg
TDE on:
73,cbm dos v2.6 1541,00,00
TDE off and VTD on:
73,virtual drive emulation v2.2,00,00
or
73,vice fs driver v2.0,00,00
(depending if a d64 is mounted or using directly the file system)
TDE off and VTD off:
?device not present
dunno about other emulators =)
The problem is that UI resets the drive and if you access the bus during drive reset a 1541 will lock up the C64.
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Burglar
Registered: Dec 2004
Posts: 1101 |
Quote: Quote:dunno about other emulators =)
the other emulators donot have any virtual drive crap and just always use "true drive emulation".
yes but those other crappy emulators do not support cartridges (so they load super slow), also they only run on windows.
hardly an alternative |
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MagerValp
Registered: Dec 2001
Posts: 1078 |
There's an experimental VICE branch that uses virtual DMA to load PRGs, instead of mounting the virtual filesystem:
http://vice-emu.svn.sourceforge.net/viewvc/vice-emu/branches/ch..
This effectively makes it work like starting PRGs over codenet, and it leaves TDE on. Seemed to work fine when I tested it, but I don't know if it'll get into 2.2. I think the main issue is that it'll have to be implemented into each emulator, not just x64.
Maybe someone is motivated enough to register a feature request for DMA based PRG loading that we all can vote for?
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enthusi
Registered: May 2004
Posts: 677 |
you may as well script it to insert PRG as monitor load command OR in fact create whole mem-images prior to x64 launch... |
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WVL
Registered: Mar 2002
Posts: 902 |
Actually I'm trying to incorporate my .d64 creator into vice to support .prg's by generating a temporary .d64 with the .prg. But can't get the darn Vice to compile.. bah. |
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