1
0
mirror of https://gitlab.os-k.eu/os-k-team/kvisc.git synced 2023-08-25 14:05:46 +02:00
kvisc/dos/str/strlen.k
julianb0 fa4457c567
dos
2019-05-30 18:31:50 +02:00

40 lines
457 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.
;
; int strlen(char *)
;
strlen:
xor rax, rax
.1:
test b[ax0], b[ax0]
jz .2
inc rax
inc ax0
jmp .1
.2:
ret
;
; int strnlen(char *, int)
;
strnlen:
xor rax, rax
mov rcx, ax1
jcxz .2
dec rcx
.1:
test b[ax0], b[ax0]
jz .2
inc rax
inc ax0
loop .1
.2:
ret