`C is an extension of ANSI C that provides the programmer with the ability to explicitly denote dynamic code generation (the creation of executable code at run time, while the application is running) at the level of C statements and expressions. `C provides primitives for dynamic code generation which are flexible, expressive, and machine-independent. The changes to ANSI C are small: `C preserves the spirit and "feel" of C, making it easy to learn and facilitating incremental modification of existing C code.
tcc is an implementation of `C. It is based on the lcc compiler. It generates code at a rate on the order of 60-600 instructions per generated instruction, depending on the level of dynamic optimization employed.tcc generates code for DECstations running Ultrix and Sun SparcStations running SunOS and Solaris. It also works as a cross-compiler for the architecture implemented by the SimpleScalar simulator tool set.