Devpac80 Companion cover: MON80, HiSoft's monitor, showing the companion's SUM program disassembled on the Tatung Einstein
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Appendix I - Change Log

2026-09-27 - First version: S1-S8, Appendices I-III. Every listing typed into ED80, assembled with GEN80 1.06 and run on the companion's disc in MAME 0.289.

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