Mike Raiford wrote:

> Ludicrously difficult is programming in machine code for a processor 
> that doesn't yet exist's micro-ops. ;)

If it makes you feel any better...

http://en.wikipedia.org/wiki/6502#Bugs_and_quirks

Note also that the 6502 doesn't have any microcode. It just uses a PLA 
as the control matrix - much like the processor that I'm designing. ;-)

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