1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
|
/* Copyright (C) 2008 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
/*
* File: OP_SHL_LONG_2ADDR.S
*
* Code: Performs a shift left long. Uses no substitutions.
*
* For: shl-long/2addr
*
* Description: Perform a binary shift operation using two source registers
* where the fist is the value to shift and the second is the
* shift amount. Store the result in the first source register.
*
* Format: B|A|op (12x)
*
* Syntax: op vA, vB
*/
movl rINST, %edx # %edx<- BA
shr $$4, %edx # %edx<- B
andl $$15, rINST # rINST<- A
movss (rFP, %edx, 4), %xmm0 # %xmm0<- vB
movq (rFP, rINST, 4), %xmm1 # %xmm1<- vA
movq .LshiftMask, %xmm2 # %xmm2<- mask for the shift bits
pand %xmm2, %xmm0 # %xmm0<- masked shift bits
psllq %xmm0, %xmm1 # %xmm1<- shifted vA
movq %xmm1, (rFP, rINST, 4) # vA<- shifted vA
FINISH 1 # jump to next instruction
|
