source: trunk/minix/lib/i386/em/em_and.s@ 10

.sect .text; .sect .rom; .sect .data; .sect .bss
.define .and

        ! #bytes in ecx
        ! save edi; it might be a register variable

        .sect .text
.and:
        pop     ebx             ! return address
        mov     edx,edi
        mov     edi,esp
        add     edi,ecx
        sar     ecx,2
1:
        pop     eax
        and     eax,(edi)
        stos
        loop    1b
        mov     edi,edx
        jmp     ebx