/C64-type-in-programs

Commodore 64 type-in programs from sources like Compute! and Compute!'s Gazette

Collection of Commodore 64 (C64) type-in code as found in magazines like Compute! and Compute!'s Gazette.

  • Focus here is on MLX 2 code from December 1985 onwards, and Automatic Proofreader 2 BASIC code from March 1986 onwards
    • MLX 2 hex format: address + 8 bytes + checksum
    • Automatic Proofreader 2 format: checkum + BASIC line
  • Source code is parsed via OCR
    • First-pass OCR has many misread characters that need correction
      • OCR is parsed in a custom JavaScript program, using JS versions of the MLX 2 and Automatic Proofreader 2 checksum generators
    • Corrected OCR is used in several ways:
      • Orginal version for reference and output variants
      • MLX 2: Hex bytes only version for disassembly or conversion to valid .PRG via C64List
  • Each program folder contains source and final files with load instructions
    • Load .PRG directly in IEC mode; can also wrap it in a .D64 file
      • .PRG extension can be deleted from filename
    • Tested on VICE emulator