|
Post by mirkosoft on Aug 4, 2014 16:31:50 GMT
Hi!
When I found all possible souces to collect undocummented opcodes of 6502 and collect it into one file I was meaning I have it. I was browsing Wikipedia and in browsing I wanted to see what they're writting about C128 8502 CPU... and found unbelievable thing:
MOS 8502 has different undocummented opcodes than MOS 6502!
Really now I see that I'm again at beginning...
Knows anyone these differencies? I know that it can be in sources renamed by author - many times in collecting undocs I found more names for the same instructions... But if is there written that are other it must to be not only in names...
Miro
|
|
|
Post by VDC 8x2 on Aug 5, 2014 0:54:33 GMT
Are you talking about the mos 6510 in the c64 compared to the mos 8502 in the c128?
|
|
|
Post by hydrophilic on Aug 5, 2014 5:43:21 GMT
As far as I can tell, 8502 has the same undocumented opcodes as 6502 and 6510. Of course I have not personally tested all undocumented opcodes, but the ones I have tested work the same in C128 / 1541 / 1571 / C64...
Yeah, I think that article is wrong (or maybe a very few of them are different). But yeah, the names can be very different because, by definition, they are non-standard.
|
|