with C source.
An PIC disassembler with limited processor-specific support so far but it does handle the 16C5X and 17CXX instruction sets. By Cosmodog, Ltd. [Open source]
this procedure permits obtaining timings between 7 and 196095 microseconds, when the PIC 12C58XX is programmed to work with it's internal oscillator or with an 4MHz external oscillator
From Speech Technology.
Nigel Goodwin's programmer S/W (includes disassembler).