Butterfield Box: Some Serious Math – Butterfield, Jim
The TORPET Issue #17, February 1983, p. 38
Topics: linear programming and simulation.
Too Clever for Words – Butterfield, Jim
The TORPET Issue #16, January 1983, p. 18
Butterfield writes about programming style, and how "clever" code can obfuscate its function.
Sweet Sixteen – Butterfield, Jim
The TORPET Issue #15, November 1982, p. 20
Blind Spots. Mum's the Word. Topics: trade-offs in cost and performance between ... prefers not to discuss.
The Commodore 64 Maps – Butterfield, Jim
The TORPET Issue #14, October 1982, p. 31
Detailed memory maps for the Commodore 64, including a register chart for the SID chip.
The PET Family Tree – Butterfield, Jim
The TORPET Issue #12, August 1982, p. 24
Diagram of the the evolutionary relationships between various Commodore and no ... 02-based 8-bit machines.
Butterfield Box: ASCII Me No Questions – Butterfield, Jim
The TORPET Issue #11, June 1982, p. 4
PETSCII to ASCII history and case conversions.
VIC Memory Map – Butterfield, Jim
The TORPET Issue #10, May 1982, p. 24
Detailed memory maps for the VIC-20, including register charts for 6560 and 6522 chips.
Butterfield Box: Compiler Comments – Butterfield, Jim
The TORPET Issue #9, April 1982, p. 15
Comments about compilers and challenges with compiling BASIC.
The BASIC Box: Feelin' Good – Butterfield, Jim
The TORPET Issue #8, January 1982, p. 7
A list of some of the things Butterfield likes about the Commodore line of computers.
Butterfield Box: The Lazy Programmer – Butterfield, Jim
The TORPET Issue #7, October 1981, p. 6
Article about the virtue of "laziness" in programming.
Supermon Instructions – Butterfield, Jim
The TORPET Issue #7, October 1981, p. 33
Documentation for the Supermon machine-language monitor by Jim Butterfield.
Butterfield Box: Booleans, or How to Put Off a Decision – Butterfield, Jim
The TORPET Issue #6, June 1981, p. 6
Working with boolean expressions in BASIC to clean up the design of complicated condtionals.