Snapshot 1c7e1e149d3dcf3949c76ae594ca9c1ca20392f9ics-mr1

1 files changed, 45 insertions, 0 deletions

diff --git a/vm/mterp/x86-atom/binop2addr.S b/vm/mterp/x86-atom/binop2addr.S
new file mode 100644
index 0000000..b26b25a
--- /dev/null
+++ b/vm/mterp/x86-atom/binop2addr.S
@@ -0,0 +1,45 @@
+   /* 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: binop2addr.S
+    *
+    * Code: Generic 32-bit "/2addr" binary operation.  Provides an
+    *       "instr" line to specify an instruction that performs
+    *       "%ecx = %ecx op %edx".
+    *
+    * For: add-int/2addr, and-int/2addr, mul-int/2addr, or-int/2addr,
+    *      sub-int/2addr, xor-int/2addr
+    *
+    * Description: Perform a binary operation on two sources registers
+    *              and 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
+    movl        rINST, %ecx             # %ecx<- A
+    FFETCH_ADV  1, %eax                 # %eax<- next instruction hi; fetch, advance
+    GET_VREG    %edx                    # %edx<- vB
+    GET_VREG    %ecx                    # %ecx<- vA
+    $instr                              # %ecx<- vA op vB
+    SET_VREG    %ecx, rINST             # vAA<- %ecx; result
+    FGETOP_JMP  1, %eax                 # jump to next instruction; getop, jmp
+
+