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Syntax/Syntax ZX80 v3 n7
Volume:
3
Issue:
7
Date
July 1982
Pages
6
BASIC Terms
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Explains how to scan the ZX80/81 keyboard from machine code in SLOW mode using the LAST K system variable (16421-16422). Covers key-value demonstration, FAST/SLOW mode selection from machine code using ROM addresses, and presents a complete machine code keyboard scanning routine that mirrors Sinclair’s own BASIC keyboard feel.