Review: PET and the IEEE-4888 Bus (GPIB) – Butterfield, Jim

Compute! Issue 4, Volume 2, No. 3, May 1980, p. 37

By Eugene Fisher and C. W. Jensen. Osborne/McGraw Hill, 233 pp. $15.00. Review ... orne/McGraw Hill, 1980).

Review: 6502 Software Design – Butterfield, Jim

Compute! Issue 4, Volume 2, No. 3, May 1980, p. 40

By Leo J. Scanlon. Howard W. Sams & Co., Inc., 270 pp. $10.50. Review of 6502 S ... rd W. Sams & Co., 1980).

Machine Language Tools – Butterfield, Jim

Compute! Issue 4, Volume 2, No. 3, May 1980, p. 57

Introductory article about machine language resources, monitors, and assemblers.

Cross-Reference for the PET – Butterfield, Jim

Compute! Issue 4, Volume 2, No. 3, May 1980, p. 63

Program reads a BASIC listing from disk and compiles lists of variable and line-number references.

Machine Language – Butterfield, Jim

Compute! Issue 3, Volume 2, No. 2, March 1980, p. 26

Broad comparison of machine language and BASIC.

Memo to Machine Language Programmers – Butterfield, Jim

Compute! Issue 3, Volume 2, No. 2, March 1980, p. 96

Finding free bytes in zero-page RAM.

Commodore 128 Machine Language: Part 5 – Butterfield, Jim

Compute! Issue 79, Volume 8, No. 12, December 1986, p. 72

In this installment, Jim Butterfield delves further into the subject of memory ... 8. Includes source code.

Commodore 128 Machine Language: Part 4 – Butterfield, Jim

Compute! Issue 78, Volume 8, No. 11, November 1986, p. 78

Previous installments of this series of articles have explained some fundamenta ... nk switching on the 128.

Video Setup: Part 1 – Butterfield, Jim

Compute!'s Gazette Issue 42, Volume 4, No. 12, December 1986, p. 66

This program provides you with all the information you need to create a custom ... gs and VIC II registers.

Machine Language: Coding Choices – Butterfield, Jim

Compute!'s Gazette Special Section Volume 14, No. 10, November 1992, p. 18

Programming for speed, economy, or both? When programming, there's usually the ... to a modulo calculation.

Machine Language: Animated Characters – Butterfield, Jim

Compute!'s Gazette Special Section Volume 14, No. 11, December 1992, p. 19

Try animation on a small scale by moving pixels within a single character. Shor ... user-defined character.

Machine Language: A Simple File Counter – Butterfield, Jim

Compute!'s Gazette Special Section Volume 15, No. 1, January 1993, p. 18

Use this program to read any file and count its bytes. Build a simple program t ... size of a file on disk.