lib/i86/int64/cv64u.s

   1 !       cv64u() - 64 bit converted to unsigned          Author: Kees J. Bot
   2 !                                                               24 Dec 1995
   3 .sect .text
   4 .define _cv64u, _cv64ul
   5
   6 _cv64u:                         ! unsigned cv64u(u64_t i);
   7         mov     bx, sp
   8         mov     cx, 4(bx)
   9         jmp     0f
  10
  11 _cv64ul:                        ! unsigned long cv64ul(u64_t i);
  12         mov     bx, sp
  13         xor     cx, cx
  14 0:      mov     ax, 2(bx)
  15         mov     dx, 4(bx)
  16         or      cx, 6(bx)
  17         or      cx, 8(bx)               ! return UINT/ULONG_MAX if really big
  18         jz      0f
  19         mov     ax, #-1
  20         mov     dx, ax
  21 0:      ret