SDCC – Small Device C Compiler

SDCC (Small Device C Compiler) is an open-source, retargettable compiler that supports Standard C (ANSI C89, ISO C99, C11, C23) and targets various microprocessors including Intel MCS51, Zilog Z80, STMicroelectronics STM8, and MOS 6502 variants. The compiler suite includes components such as an assembler, linker, preprocessor, simulator, and debugger, along with various optimization features like global subexpression elimination, loop optimizations, and dead code elimination. SDCC is composed of multiple FOSS-licensed components and can be adapted to support additional microprocessors beyond its current targets.