Harry Doakes

Location: Illinois

Articles (10)

TitleAuthor(s)PublicationDate
“Hello, Z80 Calling…”
Looks at ‘ROM calls’ the machine code subroutines stored in the ROM of your computer. They can help keep your...
SYNCNovember/December 1983
As Easy as 2+2
Ever thought about learning to program in machine code? Maybe you have. Maybe you even got far enough to open...
SYNCJanuary/February 1983
Bit by Bit
Machine language tutorial.
SYNCJanuary/February 1984
Looping the Loop
How can you do long, complicated jobs using machines code— without having to write long, complicated programs in machine code?...
SYNCMarch/April 1983
Machine Code and Your TV Screen
One of the ways that Basic is slow is in putting things on the screen. Have you ever played a...
SYNCJuly/August 1983
Maps and the ZX80/81
In this article, we will examine some ways of putting maps into your ZX80 or ZX81. We will also see...
SYNCSeptember/October 1982
Quick-draw!
More than two years ago, Sinclair announced that the 4K ROM of the ZX80 would be expanded to an 8K...
SYNCSeptember/October 1983
Safe Machine Code Routines
More and more programs are appearing in SYNC, under the rubric of “machine language.” There was a time, not too...
SYNCMarch/April 1982
The Circle Game
Of all the problems with machine code programming, there is one that really stands out: it is too simple! Oh,...
SYNCMarch/April 1984
TR$ and LET A$=A$+B$ on the ZX80
String handling on the ZX80 is reasonably good. The 4K Integer Basic lets the user print, input, and compare strings....
SYNCJuly/August 1981
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