Computer Communications Experiments – De Jong, Marvin L.

Compute! Issue 10, Volume 3, No. 3, March 1981, p. 28

Schematics and instructions for building an RS-232C interface. Includes exampl ... h commented source code.

Getting the Most from Your PET Cassette Deck – Sander, Louis F.

Compute! Issue 10, Volume 3, No. 3, March 1981, p. 42

There's much of value here for any cassette user, regardless of machine type. A ... andling and maintenance.

The Mysterious and Unpredictable RND: Part 3 of Several – Albrecht, Bob and George Firedrake

Compute! Issue 10, Volume 3, No. 3, March 1981, p. 48

From a book of the same name by Dymax Publishing Co.; copyright 1980 Dymax. Per ... RND() function in BASIC.

A CAI Program Called Linear Equation – Oakes, Peter

Compute! Issue 10, Volume 3, No. 3, March 1981, p. 54

Educational program written in BASIC to assist with learning to solve for unknowns in linear equations.

Hex Conversion Using the 6502's Decimal Mode – Clarke, Jack

Compute! Issue 10, Volume 3, No. 3, March 1981, p. 60

Algorithm for converting hexadecimal to decimal in machine language using decimal mode on the 6502.

Keyprint Revisited – Brandon, Eric

Compute! Issue 10, Volume 3, No. 3, March 1981, p. 92

Adaptation of Keyprint by Charles Brannon (COMPUTE!, November 1980, p. 84) for original ROM PETs.

Learning About Garbage Collection – Butterfield, Jim

Compute! Issue 10, Volume 3, No. 3, March 1981, p. 96

Directed experiments for observing garbage collection and techniques for reduc ... .0 or 2.0 ROM revisions.

PET Machine Language Graphics – Malmberg, David

Compute! Issue 10, Volume 3, No. 3, March 1981, p. 102

Machine language routines for defining, filling, and transforming rectangular ... ly language source code.

Disk File Recovery Program – Cone, David L.

Compute! Issue 10, Volume 3, No. 3, March 1981, p. 112

Disk sector viewer and UNSCRATCH utility.

PET Exec Hello – Campbell, Gordon

Compute! Issue 10, Volume 3, No. 3, March 1981, p. 124

Program creates a batch file that invokes a set of direct commands when bootin ... k. Includes source code.

A Flexible Input Subroutine – Kleiman, Glenn M.

Compute! Issue 10, Volume 3, No. 3, March 1981, p. 130

BASIC input subroutine that uses GET to validate characters and limit the length of strings.

Universal Tape Append for PET/CBM – Busdiecker, Roy

Compute! Issue 10, Volume 3, No. 3, March 1981, p. 132

File utility to combine two programs on cassette. Includes source code.