/* * Long integer shift. This is different from the generic 32/64-bit * binary operations because vAA/vBB are 64-bit but vCC (the shift * distance) is 32-bit. Also, Dalvik requires us to mask off the low * 6 bits of the shift distance. */ /* ushr-long vAA, vBB, vCC */ FETCH r0, 1 @ r0<- CCBB mov r9, rINST, lsr #8 @ r9<- AA and r3, r0, #255 @ r3<- BB mov r0, r0, lsr #8 @ r0<- CC VREG_INDEX_TO_ADDR r3, r3 @ r3<- &fp[BB] GET_VREG r2, r0 @ r2<- vCC ldmia r3, {r0-r1} @ r0/r1<- vBB/vBB+1 CLEAR_SHADOW_PAIR r9, lr, ip @ Zero out the shadow regs and r2, r2, #63 @ r0<- r0 & 0x3f VREG_INDEX_TO_ADDR r9, r9 @ r9<- &fp[AA] mov r0, r0, lsr r2 @ r0<- r2 >> r2 rsb r3, r2, #32 @ r3<- 32 - r2 orr r0, r0, r1, asl r3 @ r0<- r0 | (r1 << (32-r2)) subs ip, r2, #32 @ ip<- r2 - 32 movpl r0, r1, lsr ip @ if r2 >= 32, r0<-r1 >>> (r2-32) FETCH_ADVANCE_INST 2 @ advance rPC, load rINST mov r1, r1, lsr r2 @ r1<- r1 >>> r2 GET_INST_OPCODE ip @ extract opcode from rINST stmia r9, {r0-r1} @ vAA/vAA+1<- r0/r1 GOTO_OPCODE ip @ jump to next instruction