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Oswald
Registered: Apr 2002
Posts: 5127 |
AR 7.0 freeze bug (?)
Hi there!
At the weekend I was coding on my c128, when this bug costed me about half an hour extra... I thought that my code locks up, but it was the AR's failure IMHO.
it's the following:
inc $d020:jmp *-3
when I place the above code at $9000, start it, and push the freeze button,the machine either locks, or the freezer shows that the code was stopped at $e4xx or some other egzotic mem location.
the same code can be freezed nicely if run at $2000.
What can be the explanation to this ? My AR is buggy ? or this is a feature, not a bug ? |
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Clarence
Registered: Mar 2004
Posts: 123 |
Hi!
I have a custom design dual rom cartridge, I can switch between atomic power and action replay. My action replay version is: Action Cartridge Plus MK 7.0
L8r,
Clarence |
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Count Zero
Registered: Jan 2003
Posts: 2012 |
And how does it behave ? On both ROMs ?
(I want dumps of both of your ROMs !!! :) Please try with a flashutility of the rr.c64.org site if it detects the ram and asks you to dump the rom)
We tried with 2 RR ROMs and it works just fine. Code can be frozen and restartet over and over again.
On a german v5 though (which is a slightly patched and translated v4.2(+)) the problem is reproducable. The freezer freezes fine all th time though, it just has the a weird start address, usually a few bytes ahead of the real code.
e.g. on $9000 code the freezer is around $900e - $9018 or so.
Didn't find the time yet, but whoever likes to dig through some V5 code for testing purposes may do so :)
A recent post by Graham says:
Try " PRINT $ABCDEF" on any $ enhanced basic extension ... bugs out on RR, AR, FC and others ... $ABCDEE or $ABCDF0 will work just fine usually.
:)
l8r
Count Zero/CyberpunX/SCS*TRC
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Zyron
Registered: Jan 2002
Posts: 2381 |
Try ?""+-0
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Oswald
Registered: Apr 2002
Posts: 5127 |
ok, I will try to dump the rom. |
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Count Zero
Registered: Jan 2003
Posts: 2012 |
Quote: Try ?""+-0
Aehm ? Yes ? ...
... that bugs out on normal c64 aswell and is not supposed to be patched in any way. Extensions on basic are supposed to extend though, not to break or give wrong results in some specific case. hm ?
l8r
Count Zero/CyberpunX/SCS*TRC |
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