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go6502

A 6502 emulator, simulator, and assembler(s), written in Go.

This repository should probably be split up. It contains:

cpu

The actual 6502 CPU emulation.

TODOs:

Implement 65C02 variant
Implement undocumented instructions
Profile and speed up

visual

A go transliteration of an old version of https://github.com/mist64/perfect6502, the gate-level simulation of the 6502.

TODOs:

Incorporate recent speedups/simplifications made to perfect6502
Profile and speed up
Write a ridiculous one-goroutine-per-transistor simulation

asm

A 6502 assembler, more-or-less compatible with several flavors of oldschool (and soon, modern) assemblers:

Oldschool:

SCMA
Merlin
"Redbook" (A and B) the flavor used in some Apple source listings.

Modern:

(in-progress) as65
(todo) acme