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Annotation of coherent/b/lib/libc/string/i8086/strcat.m, revision 1.1

1.1     ! root        1: //////////
        !             2: / i8086 C string library.
        !             3: / strcat()
        !             4: / ANSI 4.11.3.1.
        !             5: //////////
        !             6: 
        !             7: //////////
        !             8: / char *
        !             9: / strcat(To, From)
        !            10: / char *To, *From;
        !            11: /
        !            12: / Append From to To.
        !            13: //////////
        !            14: 
        !            15: #include <larges.h>
        !            16: 
        !            17: To     =       LEFTARG
        !            18: From   =       To+DPL
        !            19: 
        !            20:        Enter(strcat_)
        !            21:        Lds     si, From(bp)    / From address to DS:SI
        !            22:        Les     di, To(bp)      / To address to ES:DI
        !            23:        mov     cx, $-1         / Max count to CX
        !            24:        sub     ax, ax
        !            25:        cld
        !            26:        repne
        !            27:        scasb                   / Find end of To
        !            28:        dec     di              / and back up to NUL
        !            29: 
        !            30: 1:     lodsb                   / Fetch From char to AL
        !            31:        stosb                   / and store through To
        !            32:        orb     al, al
        !            33:        jne     1b              / Not done
        !            34:        mov     ax, To(bp)      / Return the destination
        !            35: #if    LARGEDATA
        !            36:        mov     dx, es
        !            37: #endif
        !            38:        Leave

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