diff options
Diffstat (limited to 'vm/mterp/x86-atom/OP_CONST_WIDE_16.S')
| -rw-r--r-- | vm/mterp/x86-atom/OP_CONST_WIDE_16.S | 37 |
1 files changed, 37 insertions, 0 deletions
diff --git a/vm/mterp/x86-atom/OP_CONST_WIDE_16.S b/vm/mterp/x86-atom/OP_CONST_WIDE_16.S new file mode 100644 index 0000000..c980f10 --- /dev/null +++ b/vm/mterp/x86-atom/OP_CONST_WIDE_16.S @@ -0,0 +1,37 @@ + /* 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_CONST_WIDE_16.S + * + * Code: Move a literal to a register. Uses no substitutions. + * + * For: const-wide/16 + * + * Description: Move the given literal value (sign-extended to 64 bits) + * into the specified register-pair + * + * Format: AA|op BBBB (21s) + * + * Syntax: op vAA, #+BBBB + */ + + FETCHs 1, %ecx # %ecx<- ssssBBBB (sign-extended) + movl %ecx, %edx # %edx<- ssssBBBB (sign-extended) + sar $$31, %ecx # %ecx<- sign bit + FFETCH_ADV 2, %eax # %eax<- next instruction hi; fetch, advance + movl %edx, (rFP, rINST, 4) # vAA<- ssssBBBB + movl %ecx, 4(rFP, rINST, 4) # vAA+1<- ssssssss + FGETOP_JMP 2, %eax # jump to next instruction; getop, jmp |