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Re: CRC (was Re: [f-cpu] F-CPU architecture...)
Yann Guidon wrote:
this can be found everywhere on the net
but "really fast algos" are not so common,
the best i have found being the one in info-zip (3,75 instructions/byte
with x4 unrolling)
http://www.opensource.apple.com/darwinsource/10.4.1/zip-6/unzip/unzip/crc_i386.S
Ok I thought that was a CRC operation for the F-cpu.
Just remember you need to calculate a 16 bit look up table.
C is great for that. :)
However, my application needs CRC16 so i can't simply copy-paste
info-zip's source code.
but don't worry for me, i'm not too bad in asm programming.
Better than 8088 asm programing. :(
I did this years ago with 8 bit CRC ??? with refernce from
BYTE.
regards,
YG
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