Jack C Compiler for Jackal 3.0 2005.05.09
Jack is an optimizing C compiler for the Jackal 3.0 ISA. The Jackal 3.0 ISA is the target architecture for UVa's Advanced Digital Design Course. JackCC is ready for production use.
MC Lego RCX C Compiler 1.0
Mostly C (MC)LEGO RCX C compiler, generates LASM (Lego assembler). Has a number of features not present in NQC: true subroutines, functions w parameters, bool/float types, large const arrays, math library. Requires only LEGO SDK 2.
Z83 C Compiler 32
The Z83 C Compiler is an optimizing cross compiler for a language very similar to C targeted toward the TI83+. The output from the compiler may be assembled with TASM (http://home.comcast.net/~tasm/) or ZASM (http://lpg.ticalc.org/prj_zasm/).
Alberta Python-to-C Compiler 1.0
Alpycc (Alberta Python-to-C compiler) is a Python to C compiler. It takes annotated subset of Python as input and produces C code for an extensions module. The compiler has basic support for NumPy.
Catalina C Compiler 32
Catalina is a C compiler plus a set of C libraries and device drivers for use with the Parallax Propeller microcontroller. Catalina is a cross-compiler based on the retargetable C compiler "lcc". Catalina runs on Windows or Linux.