Annotation of coherent/b/lib/libc/string/i8086/strcat.m, revision 1.1.1.1

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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