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Additions to Xtal BASIC

A technical manual explaining how to extend Xtal BASIC 4.12 and 4.20 by adding new commands, functions, and assembler routines, with listings.
Book
1985
Last Updated
October 16, 2026

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A technical manual explaining how to extend Xtal BASIC 4.12 and 4.20 by adding new commands, functions, and assembler routines, with listings, examples, and code tables.

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Publisher

Crystal Research
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