Microlator

Emulator for the 6502 microprocessor

Status

• Implementation of all opcodes
• Passing Nestest (ignoring NES-related features)
• Cycle counting
• Decimal mode
• Running existing programs, e.g. Atari 2600
• Undocumented instructions

Resources used

References

6502 Instruction Set (masswerk.at)
Visual 6502
6502 Instruction Reference (obelisk.me.uk)
64doc: Precise cycle counting details

Test suites

Nestest