Floating point & Hi-Res turtle-graphics...
Written on March 6th, 2026 by Tech Ads
[expand]
Page 1
FORT
FEATURES
79-Standard system gives source portability.
Professionally written tutorial & user manual
Screen editor with user-definable controls.
Macro-assembler with local labels.
Virtual memory.
Both 13 & 16-sector format.
Multiple disk drives.
Double-number Standard & String extensions.
Upper/lower case keyboard input.
LO-Res graphics.
80 column display capability
Z-80 CP/M Ver. 2.x & Northstar also avaiiable
Affordable!
Low cost enhancement option:
Hi-Res turtle-graphics.
Floating-point mathematics.
Powerful package with own manual,
50 functions in all,
AM9511 compatible.
FORTH—79 V.2 (requires 48K & 1 disk drive)
ENHANCEMENT PACKAGE FOR V.2
Floating point & Hi-Res turtle-graphics
COMBINATION PACKAGE
(CA res. add 6% tax: COD accepted)
MicroMotion
12077 Wilshire Blvd. # 506
L.A., CA 90025 (213) 821-4340
Specify APPLE. CP/M or Northstar
Dealer inquiries invited.
Ver. 2 For your APPLE II/II+
The complete professional software system, that meets
ALL provisions of the FORTH—79 Standard (adopted Oct.
1980). Compare the many advanced features of FORTH—
79 with the FORTH you are now using, or plan to buy!
OURS OTHERS
YES
200 PG.
YES
YES
YES
YES
YES
YES
YES
YES
YES
YES
$99.95
YES
YES
$ 99.95
$ 49.95
$139.95
FORT
& NorthStar DOS Users
Version 2 For Z-80, CP/M (1.4 & 2.x),
The complete professional software system, that meets
ALL provisions of the FORTH—79 Standard (adopted Oct.
1980). Compare the many advanced features of FORTH—
79 with the FORTH you are now using, or plan to buy!
FEATURES OURS
79-Standard system gives source portability. VES
Professionally written tutorial & user manual. 200 PG.
Screen editor with user-definable controls. YES
Macro-assembler with local labels. YES
Virtual memory. YES
BDOS, BIOS & cunsole control functions (CP/M). YES
FORTH screen files use standard resident
file format. YES
Double-number Standard & String extensions. YES
Upper/lower case keyboard input. YES
APPLE I1/I1+ version also available. Yes
Affordable! $99.95
Low cost enhancement options;
Floating-point mathematics YES
Tutorial reference manual
50 functions (AM9511 compatible format)
Hi-Res turtle-graphics (NoStar Adv. only) YES
FORTH-79 V.2 (requires CP/M Ver. 2.x).
ENHANCEMENT PACKAGE FOR V.2:
Floating point
COMBINATION PACKAGE (Base & Floating point)
(advantage users add $49.95 for Hi-Res)
(CA. res. add 6% tax; COD & dealer inquiries welcome)
MicroMotion [-
12077 Wilshire Blvd. # 506
L.A., CA 90025 (213) 821-4340
Specify APPLE, CP/M or Northstar
Dealer inquiries invited.
OTHERS
I TH
$99.95
$ 49.95
$139.95
4
[/expand]
‘Floating point & Hi-Res turtle-graphics…’
Micromotion’s FORTH-79 was an early commercial implementation of the 1979 FORTH programming language standard for the Apple II/II+, Z-I 80 CP/M and Northstar DOS users. The Volume 2, Issue 6 (March/April 1981) of ‘Forth Dimensions’ review of the Apple II release was particularly complimentary about the quality of the language implementations documentation.
Both the Micromotion FORTH-79 Tutorial and Reference Manual (Apple II Version) and Forth-79 Floating Point Arithmetic and Hires Turtlegraphics Manual (Apple II Version) are available at the Internet Archive.
Taken from: Dr. Dobb’s Journal - Issue 72 (October 1982)
Feel free to share!