Hello

I`m still looking for a free 8051 C compiler for Dos.
So,I found some old files on the rigel downloadpage.

http://www.rigelcorp.com/8051soft.htm

I downloaded the old outdated version of reads51.zip. But I couldn` t find any C compiler in the software package. There are a few C sourcecodes, but no C compiler only a lot of assembler stuff. The IDE can only read asm sources, so I think I have to mix asm with C code.
That confused me.
The compiler system is also very bad documented.
Can anybody help me ?
Greetings