kvisc/ka/crt/str/strchr.k

; The OS/K Team licenses this file to you under the MIT license.
; See the LICENSE file in the project root for more information.

;
; char *strchrnul(const char *str, int ch)
;
strchrnul:
    mov rcx, STRLEN_MAX
    scasb.rep.nz ax0, ax1

    mov rax, ax0
    ret

;
; char *strchr(const char *str, int ch)
;
strchr:
    mov rcx, STRLEN_MAX
    scasb.rep.nz ax0, ax1

    bnz b[ax0], .r
    mov rax, zero
    ret

.r:
    mov rax, ax0
    ret