C language on MSDOS…

C program which I wrote. It can set pixels, draw a circle, and draw a box. All very primitive- technology from 30 years ago. It is old graphics card and MSDOS (FreeDOS) which runs in a hard drive partition. C compiler is not free but it is not sold anymore. Software from 1992! Eventually it is Borland C++. It can … Continue reading

obscure and ancient graphics card for IBM PC

I wrote a small C program for this graphics card. It is a CGA model which was used in early 1980s! After a while it really works. A lot of effort is required to set a single pixel. 320×200 in 4 colors… Borland C++ is used but this program is just plain C language. Tables are used to set and … Continue reading