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Create 3×3 graphics for use in your programs.
You are in a diamond mine and the object is to collect enough diamonds before time runs out, while avoiding falling rocks. Detailed instructions in program.
A short melody player that drives the AY sound chip directly through DATA-encoded triplets, with silence events and smooth volume shaping built in.
This music player reads three-byte note records from a binary block at address 60000, programming the AY sound chip directly for metallic envelope tones.
A 700-byte machine-code trace utility that hooks into BASIC execution and displays each line number as it runs, with separate USR entry points to toggle it on and off.