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strcat.asm
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Assembly Source File
|
1991-10-12
|
980b
|
61 lines
StdGrp group stdlib,stddata
stddata segment para public 'sldata'
stddata ends
;
stdlib segment para public 'slcode'
assume cs:stdgrp
;
;
; strcat- Appends one string to the end of another.
;
; inputs:
;
; ES:DI- Points at destination string, the one to which the source
; string will be appended.
;
; DX:DI- Points at the string to append.
;
;
; Note: The destination string's (ES:DI) buffer must be sufficiently large
; to hold the result of the concatentation of the two strings.
;
public sl_strcat
;
sl_strcat proc far
push ds
push cx
push ax
pushf
push si
push di
;
mov ds, dx
cld
;
; Find the end of the destination string:
;
mov al, 0
mov cx, 0ffffh
repne scasb
;
; Copy the second string to the end of the current string.
;
dec di
CpyLp: lodsb
stosb
cmp al, 0
jnz CpyLp
;
pop di
pop si
popf
pop ax
pop cx
pop ds
ret
sl_strcat endp
;
;
stdlib ends
end