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#21 |
Registered User
Join Date: Dec 2002
Location: sweden
Age: 46
Posts: 430
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That alcatraz demo would be interesting to test. Which part was it? And which alcatraz demo? I or II?
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#22 |
Registered User
Join Date: Dec 2002
Location: sweden
Age: 46
Posts: 430
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COOL FRIDGE by UPFRONT, gives me a black screen on the problematic part, nice find.
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#23 |
Registered User
Join Date: Sep 2011
Location: Paris/France
Posts: 278
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This is Alcatraz Mega Demo II
In the last part that start with the message "this part only works in a1000" If I remenber well (last time i saw it 25 years ago on an A1000...) on A1000 there are vector graphics (things like rotating cube) in the midle of the screen If remenber well what said an alcatraz coder called DarkBlitter " one of our craziest coder has tested several unused 68000 opcodes and had found one that do a math operation that serve to optimize this demo" |
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#24 | |
move.l #$c0ff33,throat
Join Date: Dec 2005
Location: Berlin/Joymoney
Posts: 6,863
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Quote:
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#25 |
son of 68k
Join Date: Nov 2007
Location: Lyon / France
Age: 51
Posts: 5,355
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I tested all unused 68000 opcodes many years ago and they all trap as illegal.
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#26 |
Code Kitten
![]() Join Date: Aug 2015
Location: Montreal/Canadia
Age: 52
Posts: 1,178
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#27 |
son of 68k
Join Date: Nov 2007
Location: Lyon / France
Age: 51
Posts: 5,355
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As the 68000 traps as illegal by checking the first code word only, it's pretty safe to test just that (some 020+ codes are wrongly executed on '000 because of this).
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