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kvisc/dos/str/strcpy.k
2019-06-02 11:01:33 +02:00

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; The OS/K Team licenses this file to you under the MIT license.
; See the LICENSE file in the project root for more information.
;
; void strcpy(char *, const char *)
;
strcpy:
mov b[ax0], b[ax1]
test b[ax1], b[ax1]
cretz
inc ax0
inc ax1
jmp strcpy
;
; void strncpy(char *, const char *, int)
;
strncpy:
mov rcx, ax2
jcxz .2
dec rcx
.1:
mov b[ax0], b[ax1]
test b[ax1], b[ax1]
cretz
inc ax0
inc ax1
loop .1
.2:
ret
;
; void strnzcpy(char *, const char *, int)
;
strnzcpy:
mov rcx, ax2
jcxz .2
dec rcx
.1:
mov b[ax0], b[ax1]
test b[ax1], b[ax1]
cretz
inc ax0
inc ax1
loop .1
.2:
mov b[ax0], 0
ret