The Coleco library by Marcel de Kogel is writen in ASM and C to be used with Hi-Tech C compiler. This compiler is a freeware for CP/M computers. To be used under DOS, you have to use an emulator like 22NICE. 22NICE uses interruptions to activate the emulation, but it needs a step to prepare the hi-tech c compiler.
To avoid this unfriendly installation, I have done an archive (ZIP format). The only thing to do is unarchive the ZIP file to install the compiler, the emulator, and also the coleco library.
Before starting a new Coleco project in C, you have to know the C language.. more specificly the standard ANSI C. Try to find at least a web page for newbies to learn the base of the C language (#include, #define, void main(void), syntax, how to do an if statement, etc..).
I created also a new program (for Windows) named CCI. Create a new sub-directory of the hitech-c compiler and add the CCI software. Before running CCI, you have to start programming.
URL :
http://www.chez.com/cdi/cci/cci.html