Turbo51 Free Download
Shareware: You can try this program, but this version has some limited features or time usage restrictions. You should purchase it in order to remove those limits.
Turbo51 is a free Pascal compiler for the 8051 family of microcontrollers. It features a fast single pass optimizing compiler, Borland Turbo Pascal 7 syntax, full floating point support, mixed Pascal and assembler programming, full use of register banks, advanced multi-pass optimizer, smart linker, generates compact high quality code, output formats: binary, Intel HEX, OMF-51 and ASM source, source-level debugging with absolute OMF-51 object file