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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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chatGPZ
Registered: Dec 2001
Posts: 11386 |
"another world" used it... and the game constantly saves its status to disk in the background, so you can continue from where you have been when it crashed =P |
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algorithm
Registered: May 2002
Posts: 705 |
Creatures and Mayhem in monsterland as well as Phobia used VSP. |
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Oswald
Registered: Apr 2002
Posts: 5094 |
fred's back, mythos, and some car game used agsp. |
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Shadow
Account closed
Registered: Apr 2002
Posts: 355 |
Interesting, for example the Apex games are pretty "high profile" games. Maybe the percentage of VSP-crashing computers was so small that they could ignore those.
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T.M.R
Account closed
Registered: Dec 2001
Posts: 749 |
At the time, nobody was really aware of VSP causing crashes. The rather lovely-looking Touchlight was cancelled because the AGSP scrolling wouldn't work on everything, though. |
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Adam
Registered: Jul 2009
Posts: 323 |
Quote: 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...
In regards to "Scramble 2010", I was unable to get it
to work in VICE 2.1 (whatever i did - must be just me?) but the code+scrolling worked perfectly on my C128-D in 64 mode.
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> Adam/Usagi! <
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Oswald
Registered: Apr 2002
Posts: 5094 |
Quote: In regards to "Scramble 2010", I was unable to get it
to work in VICE 2.1 (whatever i did - must be just me?) but the code+scrolling worked perfectly on my C128-D in 64 mode.
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> Adam/Usagi! <
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turn true drive emu on. |
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enthusi
Registered: May 2004
Posts: 677 |
what btw is the smallest method to check for true-drive in code? |
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SIDWAVE
Account closed
Registered: Apr 2002
Posts: 2238 |
My C64 has never crashed due to a VSP - perhaps it dont have this bug ? i dont know. |
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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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