blob: 2e227a94af674d9a9185aa9f4fa220fbc542000b [file] [log] [blame]
/*
* 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