Return to compar.3 CVS log

Up to [Research Unix] / researchv10dc / dist / man / v3 / man3

Annotation of researchv10dc/dist/man/v3/man3/compar.3, revision 1.1

1.1     ! root        1: .pa 1
        !             2: .he 'COMPAR (III)'1/15/73'COMPAR (III)'
        !             3: .ti 0
        !             4: NAME           compar -- default comparison routine for qsort
        !             5: .sp
        !             6: .ti 0
        !             7: SYNOPSIS       jsr pc,compar
        !             8: .sp
        !             9: .ti 0
        !            10: DESCRIPTION    Compar is the default comparison routine
        !            11: called by qsort and is separated out so that the user can
        !            12: supply his own comparison.
        !            13: .sp
        !            14: The routine is called with the width (in bytes) of
        !            15: an element in r3 and it compares byte-by-byte the element
        !            16: pointed to by r0 with the element pointed to by r4.
        !            17: .sp
        !            18: Return is via the condition codes,
        !            19: which are tested by the instructions "blt" and "bgt".
        !            20: .a
        !            21: That is, in the absence of overflow, then the 
        !            22: condition (r0) < (r4) should leave the Z-bit off and N-bit
        !            23: on while (r0) > (r4) should leave Z and N off.
        !            24: Still another way of putting it is that  for elements
        !            25: of length 1 the instruction
        !            26: 
        !            27:        cmpb    (r0),(r4)
        !            28: 
        !            29: suffices.
        !            30: .sp
        !            31: Only r0 is changed by the call.
        !            32: .sp
        !            33: .ti 0
        !            34: FILES          kept in /lib/liba.a
        !            35: .sp
        !            36: .ti 0
        !            37: SEE ALSO       qsort (III)
        !            38: .sp
        !            39: .ti 0
        !            40: DIAGNOSTICS    --
        !            41: .sp
        !            42: .ti 0
        !            43: BUGS           It could be recoded to run faster.

This archive runs on limited infrastructure. Preserving old code on modern bandwidth. Automated agents are requested to crawl responsibly.