Return to memxch.m CVS log

Up to [MW Coherent from dump] / coherent / g / usr / lib / misc

Annotation of coherent/g/usr/lib/misc/memxch.m, revision 1.1.1.1

1.1       root        1: /*
                      2:  * void * memxch(void *buf1, void *buf2, size_t size)
                      3:  * exchanges buf1 & buf2 for size.
                      4:  */
                      5: #include <larges.h>
                      6: buf1   =       LEFTARG
                      7: buf2   =       buf1+DPL
                      8: size   =       buf2+DPL
                      9:        Enter(memxch_)
                     10:        mov     cx, size(bp)
                     11:        Les     si, buf1(bp)
                     12:        Lds     di, buf2(bp)
                     13:        shr     cx, $1
                     14:        jnc     1f
                     15:        movb    al, Pes (di)
                     16:        movsb
                     17:        movb    -1(si), al
                     18: 1:
                     19:        jcxz    3f
                     20: 2:
                     21:        mov     ax, Pes (di)
                     22:        movs
                     23:        mov     -2(si), ax
                     24:        loop    2b
                     25: 3:
                     26:        Leave

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