source: trunk/minix/lib/i86/string/memcpy.s@ 10

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

! void *memcpy(void *s1, const void *s2, size_t n)
!       Copy a chunk of memory.
!       This routine need not handle overlap, so it does not handle overlap.
!       One could simply call __memmove, the cost of the overlap check is
!       negligible, but you are dealing with a programmer who believes that
!       if anything can go wrong, it should go wrong.
!
.sect .text
.define _memcpy
_memcpy:
        push    bp
        mov     bp, sp
        push    si
        push    di
        mov     di, 4(bp)       ! String s1
        mov     si, 6(bp)       ! String s2
        mov     cx, 8(bp)       ! Length
        ! No overlap check here
        jmp     __memcpy        ! Call the part of __memmove that copies up