source: trunk/minix/lib/i386/string/strncpy.s@ 10

!       strncpy()                                       Author: Kees J. Bot
!                                                               1 Jan 1994
.sect .text; .sect .rom; .sect .data; .sect .bss

! char *strncpy(char *s1, const char *s2, size_t n)
!       Copy string s2 to s1.
!
.sect .text
.define _strncpy
        .align  16
_strncpy:
        push    ebp
        mov     ebp, esp
        push    esi
        push    edi
        mov     ecx, 16(ebp)    ! Maximum length
        call    __strncpy       ! Common code
        mov     ecx, edx        ! Number of bytes not copied
        rep
        stosb                   ! strncpy always copies n bytes by null padding
        mov     eax, 8(ebp)     ! Return s1
        pop     edi
        pop     esi
        pop     ebp
        ret