dalvik/vm/mterp/armv6t2/OP_SHR_LONG_2ADDR.S

   1 %verify "executed"
   2     /*
   3      * Long integer shift, 2addr version.  vA is 64-bit value/result, vB is
   4      * 32-bit shift distance.
   5      */
   6     /* shr-long/2addr vA, vB */
   7     mov     r3, rINST, lsr #12          @ r3<- B
   8     ubfx    r9, rINST, #8, #4           @ r9<- A
   9     GET_VREG(r2, r3)                    @ r2<- vB
  10     add     r9, rFP, r9, lsl #2         @ r9<- &fp[A]
  11     and     r2, r2, #63                 @ r2<- r2 & 0x3f
  12     ldmia   r9, {r0-r1}                 @ r0/r1<- vAA/vAA+1
  13
  14     mov     r0, r0, lsr r2              @  r0<- r2 >> r2
  15     rsb     r3, r2, #32                 @  r3<- 32 - r2
  16     orr     r0, r0, r1, asl r3          @  r0<- r0 | (r1 << (32-r2))
  17     subs    ip, r2, #32                 @  ip<- r2 - 32
  18     FETCH_ADVANCE_INST(1)               @ advance rPC, load rINST
  19     movpl   r0, r1, asr ip              @  if r2 >= 32, r0<-r1 >> (r2-32)
  20     mov     r1, r1, asr r2              @  r1<- r1 >> r2
  21     b       .L${opcode}_finish
  22 %break
  23
  24 .L${opcode}_finish:
  25     GET_INST_OPCODE(ip)                 @ extract opcode from rINST
  26     stmia   r9, {r0-r1}                 @ vAA/vAA+1<- r0/r1
  27     GOTO_OPCODE(ip)                     @ jump to next instruction