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SubjectNES rom FF opcode Reply to this message
Posted byKMDK
Posted on07/05/08 08:07 AM

I've built a disassembler for the NES roms to test the 6502 cpu of my nes emulator. However the disassembler showed many FF opcodes (mostly chained in long groups of FF op's). I used other NES disassemblers to compare the output so to rule out errors and I also looked at the binary data directly. So I would like to know why there are so many FF opcodes in Nes roms (e.g. zelda, SMB2, Ninja Gaiden)?


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Subject  Posted byPosted On
.NES rom FF opcode  KMDK07/05/08 08:07 AM
.*Re: NES rom FF opcode  Bart T.07/05/08 02:07 PM
..*Re: NES rom FF opcode  KMDK07/06/08 09:30 AM
...*Re: NES rom FF opcode  Bart T.07/06/08 03:37 PM
....*Re: NES rom FF opcode  smf07/31/08 05:54 PM