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

1.1     ! root        1: //////////
        !             2: / i8086 C string library.
        !             3: / streq()
        !             4: / Not in ANSI draft standard.
        !             5: //////////
        !             6: 
        !             7: //////////
        !             8: / streq(String1, String2)
        !             9: / char *String1, *String2;
        !            10: /
        !            11: / Compare String1 and String2 for equality, return 1 or 0.
        !            12: //////////
        !            13: 
        !            14: #include <larges.h>
        !            15: 
        !            16: String1        =       LEFTARG
        !            17: String2        =       String1+DPL
        !            18: 
        !            19:        Enter(streq_)
        !            20:        Lds     si, String2(bp) / String2 address to DS:SI
        !            21:        Les     di, String1(bp) / String1 address to ES:DI
        !            22:        mov     cx, $0          / Result to CX
        !            23:        cld
        !            24: 
        !            25: 1:     lodsb                   / String2 character to AL
        !            26:        scasb                   / Compare to String1 character
        !            27:        jne     2f              / Mismatch, return 0
        !            28:        orb     al, al
        !            29:        jne     1b              / Not done yet
        !            30:        inc     cx              / Matched, return 1
        !            31: 
        !            32: 2:     mov     ax, cx          / Result to AX
        !            33:        Leave

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