May 26, 2018

Assembler for the 6502 microprocessor

The P65 assembler is an assembler for the 6502 microprocessor such as is used in the Commodore 64, Apple II, and Nintendo Entertainment System written entirely in Perl. It is designed to be able to support a wide variety of output formats, since many people will be using this to produce code that an emulator would like to see.

Features of P65

  • Highly portable
  • Flexible output format
  • Multiple file support
  • Temporary label support
  • Assemble-time expressions
  • Symbol table management
  • Optimal instruction selection

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