dtynan@cadvax (Dermot Tynan) (03/15/85)
Can anyone supply me with a routine or algorithm for CRC (cyclical redundancy checking) calculation?? I remember seeing a copy for a Z80 in public domain, which used a combination of XORing and lookup tables, giving a high-speed conversion. Anything along those lines would be greatly appreciated. The particular CRC polynomial is for a floppy disk (X^12 + X^5 + X + 1), although it would be preferred if the routine were general case so I could change it for a different polynomial. Either high-level or low-level software listing would be acceptable, as I can convert it to what I need. Please reply by mail and I will post it to net.sources if there is sufficient interest. Thanks, - Der Tynan dtynan@cadvax!megatest