Copy Protection

Copy Protection

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Decoded from Amiga ASM flow around 0x26D38..0x26ED4 and extracted from EXTRACTED/mm2.asm data bytes.

Where It Is

• UI prompt text ("Please look at page ...") is in decoded globe.32 string table 6 (A4-$F7C pointers).
• Challenge records are in a separate word table read through:
  • lea -$6476(a4), a0 at 0x26D64, 0x26DD4, 0x26E44

Current extracted table location in mm2.asm:

• start: 0x27530
• count: 0x33 entries (51)
• entry size: 3 * u16 = 6 bytes

Record Format

For each entry words (w0, w1, w2):

• w0: page digits packed in low nibbles:
  • page tens = (w0 >> 8) & 0x0F
  • page ones = w0 & 0x0F
  • page = tens*10 + ones
• w1:
  • paragraph = (w1 >> 8) & 0x0F
  • line = w1 & 0x7F
• w2: target checksum used for answer verification

The answer path computes a running value from typed chars and compares against w2 (cmp.w -$7a48(a4), d0 near 0x26ED0).

Tooling

• Python: tools/decode_copyprot_words.py
  • extracts bytes from EXTRACTED/mm2.asm DC.L lines
  • decodes all 51 entries
  • supports raw export + JSON export
• C codec: EXTRACTED/decomp/mm2_copyprot_codec.{h,c}
  • struct + decode/encode + load/save for raw 6-byte records