/* * 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(a0, 1) # a0 <- CCBB GET_OPA(rOBJ) # rOBJ <- AA and a3, a0, 255 # a3 <- BB srl a0, a0, 8 # a0 <- CC EAS2(a3, rFP, a3) # a3 <- &fp[BB] GET_VREG(a2, a0) # a2 <- vCC LOAD64(a0, a1, a3) # a0/a1 <- vBB/vBB+1 FETCH_ADVANCE_INST(2) # advance rPC, load rINST GET_INST_OPCODE(t0) # extract opcode from rINST andi v0, a2, 0x20 # shift & 0x20 srl v1, a1, a2 # rhi<- ahi >> (shift&31) bnez v0, .L${opcode}_finish srl v0, a0, a2 # rlo<- alo >> (shift&31) not a0, a2 # alo<- 31-n (shift is 5b) sll a1, 1 sll a1, a0 # ahi<- ahi << (32-(shift&31)) or v0, a1 # rlo<- rlo | ahi SET_VREG64_GOTO(v0, v1, rOBJ, t0) # vAA/vAA+1 <- v0/v1 %break .L${opcode}_finish: SET_VREG64_GOTO(v1, zero, rOBJ, t0) # vAA/vAA+1 <- rlo/rhi