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PIC IP: Internet Protocol I/O

Calculating IP Checksums

Nikolai Golovchenko says: 

; enter with "b" in W

ipsum_running:

    incf   ipcksum_b,f
    btfss  ipcksum_b,0
     goto  l1

    addwf  ipcksum_h,f
    skpnc
     incfsz  ipcksum_l,f
    return
    incf  ipcksum_h,f
    return

l1:
    addwf  ipcksum_l,f
    skpnc
     incfsz  ipcksum_h,f
    return
    incf  ipcksum_l,f
    return

see:

file: /Techref/microchip/ipsums.htm, 1KB, , updated: 2006/3/4 04:34, local time: 2024/5/31 01:46,
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