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AlexC
Registered: Jan 2008
Posts: 299 |
Illegal opcodes support
Can somebody point me to cartridges / roms that support illegal opcodes during disassembly - besides TFR.
Thanks in advance |
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AlexC
Registered: Jan 2008
Posts: 299 |
I'm looking rather for info on cartridges like hacked version of AR or Expert for example (monitors loaded from disk/tape also count in). I can refine my question and ask how did you guys handle illegal opcodes in good old times. On the other hand I remember seeing few hacked versions of Turbo Assembler that could handle illegal opcodes. |
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LHS
Registered: Dec 2002
Posts: 66 |
In old good times I have coded f.e.:
.byte $AF, $00, $20 ;LAX $2000
:-D
I mean the Assblaster knows illegal opcodes (I am not sure). |
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Radiant
Registered: Sep 2004
Posts: 639 |
I still use .byte + comment when I need illegals, haven't bothered fiddling with ca65 to get proper support. I mean, it's not like you use them that often in any case, compared to the regular opcodes. |
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Frantic
Registered: Mar 2003
Posts: 1648 |
RadiantX: Try "--cpu 6502X" as one of the options sent to ca65 and illegals will be available for youuuu..
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Zyron
Registered: Jan 2002
Posts: 2381 |
Monster-Mon V5.1 Preview supports them IIRC. |
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chatGPZ
Registered: Dec 2001
Posts: 11386 |
one of the original SMON versions handles illegals too |
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AlexC
Registered: Jan 2008
Posts: 299 |
Talking about cross assemblers don't forget about dreamass ;) It supports illegal opcodes by using .cpu "6510ill" macro. But my main intrest are old cartriges as I said. |
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Mace
Registered: May 2002
Posts: 1799 |
I believe the lastest Expert cartridge (v4.2 or higher) supports undocumented opcodes too. |
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AlexC
Registered: Jan 2008
Posts: 299 |
Quote: I believe the lastest Expert cartridge (v4.2 or higher) supports undocumented opcodes too.
If so can somebody send me v.4.2 driver? I've been looking for this version for some time already.
Thanks in advance
PS: actually the 4.1 version I have also supports illegal opcodes. |
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The Shadow
Registered: Oct 2007
Posts: 304 |
Another option is to download CCS64, v2 is fine. From VICE, attach cartridge image and select the file CcsMon. You can comfortably use the CCS monitor from VICE as a cartridge. The CCS monitor is perfection. It is comfortable to use and has all the needed features. CCS monitor recognizes all illegal opcodes. |
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