Line drawing and polygon filling engines by CH Ting
- Line drawing engine uses 5 subtracters, multiplexers, add/subtracter
- Horizontal drawing engine
- Polygon filling engine
- Circle drawing program
VCF presentation thoughts:
- Why use Forth in a "vintage" environment? - Kevin and Dave
- as an emulator
- as an assembler
- as a tethered development tool
- Forth's differences from C
- As a possible handout include a printed data sheet of Forth Resources or a
CD with HTML bookmarks and:
- fingerspelling hand - Dave
- ultrasonic wheelchair video - Dave
- tethered Forth system - Ting
- Dwight's presentation abstract:
- Using Forth to Transfer Data from Vintage Machines
- This presentation with describe methods of transferring data from vintage
computer systems that have unique non-compatible disk formats. In particular,
data has been recovered from a Heathkit H89 with a hard-sector formatted
USART-encoded floppy disk and transferred to a PC over a serial interface.
Forth was employed on the PC side and assembly language on the H89.
Kalifer Diel Website
Computers Parking Lot Sale
09/14 Comedy Day in Golden Gate Park
- Free trial download
- Standard Edition $ 69
- Professional $129
- Professional Plus $198
Meme: A Virtual Reality System written in Forth
Paul Frenger (an MD using Forth) wrote an article about Meme in ACM SIGPLAN
in June 2003.
Immersive Systems Inc. offers it
Meme is written in plain-vanilla C, so it ports to any machine with an
ANSI-compliant C compiler.
"The source to Meme and Metatopia comes from three donors. Mitch
Bradley of Firmworks (http://www.firmworks.com) donated the interpreter on
which Meme is based. Marc de Groot of Immersive Systems, Inc.
(http://www.immersive.com) worked on Meme for 20,000 hours to bring it to its
current state. Master Zap (http://www.master-zap.com) implemented Metatopia, as
well as a number of demos featured on the website..."