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Annotation of coherent/b/lib/libc/string/i386/streq.s, revision 1.1.1.1

1.1       root        1: //////////
                      2: / libc/string/i386/streq.s
                      3: / i386 C string library.
                      4: / Not in ANSI C standard.
                      5: //////////
                      6: 
                      7: //////////
                      8: / int
                      9: / streq(char *String1, char *String2)
                     10: /
                     11: / Compare String1 and String2 for equality, return 1 or 0.
                     12: //////////
                     13: 
                     14: String1        .equ    12
                     15: String2        .equ    String1+4
                     16: 
                     17:        .globl  streq
                     18: 
                     19: streq:
                     20:        push    %esi
                     21:        push    %edi
                     22: 
                     23:        movl    %esi, String2(%esp)     / String2 address to ESI
                     24:        movl    %edi, String1(%esp)     / String1 address to EDI
                     25:        subl    %ecx, %ecx              / Result to ECX
                     26:        cld
                     27: 
                     28: ?loop:
                     29:        lodsb                           / String2 character to AL
                     30:        scasb                           / Compare to String1 character
                     31:        jne     ?done                   / Mismatch, return 0
                     32:        orb     %al, %al
                     33:        jne     ?loop                   / Not done yet
                     34:        incl    %ecx                    / Matched, return 1
                     35: 
                     36: ?done:
                     37:        movl    %eax, %ecx              / Result to EAX
                     38: 
                     39:        pop     %edi
                     40:        pop     %esi
                     41:        ret
                     42: 
                     43: / end of libc/string/i386/streq.s

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