Home Computing Weekly


Forth FP50
By Hampson & Lord
Spectrum 48K

 
Published in Home Computing Weekly #28

A program which turns your Spectrum into a computer which you program in Forth instead of Basic.

Forth is a high level language which needs a logical approach, based on creating "subroutines" in the form of a dictionary of "words" and using a stack of numbers. Many claim that it is easier to learn Forth then Basic. I had no previous experience, but had a set of "invaders" up and invading about 90 minutes after loading this program.

Technically, this is a BASIC into Forth format. It will process both integer and floating point - decimal - numbers and will handle all Forth-79 Structures plus special Spectrum commands, for colour sound and UDGs.

A 12-page typed, A4 booklet/manual is supplied, which I found simple 10 understand and which contained very short, one line, demos. It's a good introduction, but I needed a book to really get to grips with the language's capabilities. A few more demo programs with visual effects would have been nice.

R.E.

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