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This repository contains Intel x86 code to emulate the instruction set of the 6502 processor
Given that there's a one-to-one relationship between implemented opcodes and base instruction cycle times, the times could just be encoded directly into the implementation. There's no need to collect these values in the 256-byte TIMETAB table. I think I may be able to use the BL
register to return the cycle count, although I'll need to stash the value in AH
in a few opcode methods that need to use BX
for memory access.
I think MODETAB is complete useless. Addressing mode is inherently represented in the opcode implementation. There's no common implementation that abstracts addressing mode away from the opcode methods, as this would be terribly inefficient.
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