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mirror of https://gitlab.os-k.eu/os-k-team/kvisc.git synced 2023-08-25 14:05:46 +02:00
kvisc/ka/crt/str/strcpy.k
julianb0 9eee4817cd
vm
2019-07-22 14:41:50 +02:00

60 lines
723 B
Plaintext

; 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:
.l:
mov rcx, b[ax1]
mov b[ax0], rcx
ret.cxz
add ax0, ax0, 1
add ax1, ax1, 1
jmp .l
;
; void strncpy(char *, const char *, int)
;
strncpy:
mov rcx, ax2
ret.cxz
.l:
mov rax, b[ax1]
mov b[ax0], rax
add ax0, ax0, 1
add ax1, ax1, 1
loop .l
ret
;
; void strnzcpy(char *, const char *, int)
;
strnzcpy:
mov rcx, ax2
ret.cxz
.l:
mov rax, b[ax1]
mov b[ax0], rax
jmp.axz .r
add ax0, ax0, 1
add ax1, ax1, 1
loop .l
.z:
mov b[ax0], zero
.r:
ret