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jefftranter / udis

Universal Disassembler program for 8-bit microprocessors
Apache License 2.0
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Adding support for undocumented 6502 instructions #1

Open robmcmullen opened 8 years ago

robmcmullen commented 8 years ago

I'm interested in adding support for undocumented/illegal opcodes in the 6502 , but I wanted to check with you before I went marching off on my own. My idea was to add in the undocumented opcodes but use a new flag parameter in the opcodeTable dictionary, and the main program could then check whether or not to display the undocumented pcode based on a command line flag. If the command line arg isn't set to display those, then the disassembly would look just like it does now.

Did you have any ideas? I'll probably implement it that way unless you've already had some plans in mind.

jefftranter commented 8 years ago

Yes, that should work fine. If you come up with a patch I will take a look and consider adding to my version.

On Sun, Feb 21, 2016 at 4:22 PM, Rob McMullen notifications@github.com wrote:

I'm interested in adding support for undocumented/illegal opcodes in the 6502 http://nesdev.com/undocumented_opcodes.txt, but I wanted to check with you before I went marching off on my own. My idea was to add in the undocumented opcodes but use a new flag parameter in the opcodeTable dictionary, and the main program could then check whether or not to display the undocumented pcode based on a command line flag. If the command line arg isn't set to display those, then the disassembly would look just like it does now.

Did you have any ideas? I'll probably implement it that way unless you've already had some plans in mind.

— Reply to this email directly or view it on GitHub https://github.com/jefftranter/udis/issues/1.