arch/arm-all/arm-aeabi/uidivmod.S

   1
   2         .text
   3         .align 2
   4         .global __aeabi_uidiv
   5         .type __aeabi_uidiv,%function
   6         .global __aeabi_uidivmod
   7         .type __aeabi_uidivmod,%function
   8
   9 __aeabi_uidiv:
  10 __aeabi_uidivmod:
  11                         subs    r2, r1, #0
  12                         bxeq    lr              /* div/0 !*/
  13
  14                         cmp     r2, r0
  15                         movhi   r1, r0
  16                         movhi   r0, #0
  17                         bxhi    lr
  18
  19                         mov     r1, r0
  20
  21                         clz     r3, r1
  22                         clz     r0, r2
  23                         rsb     r0, r3, r0
  24                         mov     r3, #1
  25                         mov     r2, r2, asl r0
  26                         mov     r3, r3, asl r0
  27                         mov     r0, #0
  28 1:
  29                         cmp     r1, r2
  30                         rsbcs   r1, r2, r1
  31                         orrcs   r0, r0, r3
  32                         movs    r3, r3, lsr #1
  33                         mov     r2, r2, lsr #1
  34                         bne     1b
  35                         bx lr