SDCC is a retargettable, optimizing ANSI C compiler that targets the
Intel 8051, Maxim 80DS390, Zilog Z80, Z180, Rabbit 2000 and the Motorola
68HC08 based MCUs. Work is in progress on supporting the Microchip PIC16
and PIC18 series.

WWW: http://sdcc.sourceforge.net/