Checking Computer Accuracy
Follow up to an article in Scientific American on a method to check accuracy of computer math routines.
Checking Computer Accuracy Read More »
Timex/Sinclair 1000
Single-Key Shifted Functions
Describes how to use diodes and integrated circuits to map a single key to a shifted-key function on the ZX81.
Single-Key Shifted Functions Read More »
Merging BASIC Programs
Method for typing in a second program without losing the first.
Merging BASIC Programs Read More »
Machine Code Programming (part 3)
Machine language programming tutorial.
Machine Code Programming (part 3) Read More »
BASIC Programming (part 3)
BASIC language programming tutorial, building a name/address file.
BASIC Programming (part 3) Read More »
Aligning Decimal Points
Subroutines to align decimals and control the number of digits displayed after the decimal.
Aligning Decimal Points Read More »
Machine Code Programming (part 2)
Machine language programming tutorial.
Machine Code Programming (part 2) Read More »
BASIC Programming (part 2)
BASIC language programming tutorial, building a name/address file.
BASIC Programming (part 2) Read More »
Machine Code Programming (part 1)
Machine language programming tutorial.
Machine Code Programming (part 1) Read More »
BASIC Programming (part 1)
BASIC language programming tutorial, building a name/address file.
BASIC Programming (part 1) Read More »