source: trunk/minix/lib/i86/int64/add64u.s@ 9

!       add64u() - unsigned to 64 bit addition          Author: Kees J. Bot
!                                                               24 Dec 1995
.sect .text
.define _add64u, _add64ul

_add64u:                        ! u64_t add64u(u64_t i, unsigned j);
        push    bp
        mov     bp, sp
        xor     cx, cx
        jmp     0f
_add64ul:                       ! u64_t add64ul(u64_t i, unsigned long j);
        push    bp
        mov     bp, sp
        mov     cx, 16(bp)
0:      mov     bx, 4(bp)
        mov     ax, 6(bp)
        add     ax, 14(bp)
        mov     (bx), ax
        mov     ax, 8(bp)
        adc     ax, cx
        mov     2(bx), ax
        mov     ax, 10(bp)
        adc     ax, #0
        mov     4(bx), ax
        mov     ax, 12(bp)
        adc     ax, #0
        mov     6(bx), ax
        mov     ax, bx
        pop     bp
        ret