A83: Opcode questions...
[Prev][Next][Index][Thread]
A83: Opcode questions...
I am working on a z80 discompiler right now so that I can view the 1.07 ROM
in all of its glory, but I've noticed some wierd things with the z80
instructions. I am basing my discompiler off of a text file called "opcodes"
which is circulating around the internet somewhere and there are two specific
questions I have. First, for each register there is a command "ld b,b" and I
am wondering what the purpose of something like this is because I think it is
something like the equivalent of X->X in Basic. Second, I have seen a couple
of things like "jr nz,$+2" and am not entirely sure what this means. Does it
mean to jump two bytes ahead of the current address? Any help you guys could
give would be appreciated.
Ted21@aol.com
Follow-Ups: