25 Years of Programming
An open source source for C, C++, OWL, BASIC, MDB, XLS, DOT, and more...
Programs in DeSmet C for the Heathkit H-100 computer
In addition to the programs on this page, the site has some Borland C programs that were originally in DeSmet and might be converted back to it without too much difficulty. A few of them may have such a comment in their source code, and could be found by searching this site for "DeSmet".
Each link below goes to the project page, which has a more complete description and code listing.
Programs that generate graphics files
Programs that transform or manipulate graphics files
Each of these simple programs is mostly boring and useless until you need to do the thing that it does.
Dealing with .ZED files
The .zed graphic format was one I invented for use on the H-100. It is like a device-dependent bitmap. It stores the raw data from the red, green, and blue color plane RAM banks to a disk file. The files save and load very fast. A predecessor, referred to in a few places, was the monochrome .ZIC format, which saved only the green plane data.
I also invented this .PIC format for the H-100. It is like a device-independent bitmap. It stores the color values of consecutive pixels as consecutive chars in a disk file. Each char of a .PIC file can hold values from 0-255 even though the H-100 only has 8 colors.
Miscellaneous Other Programs
Copyright ©2012 Steven Whitney. Last modified Sun 07/29/2012 11:38:02 -0700.