The BD Software C Compiler (BDS C) An 8080/Z80 C Compiler: Now Open Source and Public Domain! Initial Commercial Release: August, 1979 Released into the Public Domain: September 20, 2002 This Distribution Last Updated: October 10, 2002 In 1979, I wrote a compiler for a subset of the pre-Standard ("K&R Classic") C Programming Language. The package was developed on, and targeted for, CP/M-80 floppy-