source: trunk/minix/lib/i86/int64/add64.s@ 9

!       add64() - 64 bit addition                       Author: Kees J. Bot
!                                                               24 Dec 1995
.sect .text
.define _add64

_add64:                         ! u64_t add64(u64_t i, u64_t j);
        push    bp
        mov     bp, sp
        mov     bx, 4(bp)
        mov     ax, 6(bp)
        add     ax, 14(bp)
        mov     (bx), ax
        mov     ax, 8(bp)
        adc     ax, 16(bp)
        mov     2(bx), ax
        mov     ax, 10(bp)
        adc     ax, 18(bp)
        mov     4(bx), ax
        mov     ax, 12(bp)
        adc     ax, 20(bp)
        mov     6(bx), ax
        mov     ax, bx
        pop     bp
        ret