| /* 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: binopDivRemLong2Addr.S |
| * |
| * Code: 64-bit "/2addr" long divide operation. Variable |
| * "func" defines the function called to do the operation. |
| * |
| * For: div-long/2addr, rem-long/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 |
| */ |
| |
| %default {"func":"__divdi3"} |
| |
| movl rINST, %edx # %edx<- BA |
| shr $$4, %edx # %edx<- B |
| and $$15, rINST # rINST<- A |
| movl (rFP, %edx, 4), %eax # %eax<- vB |
| movl %eax, -12(%esp) # push arg vB |
| movl 4(rFP, %edx, 4), %ecx # %ecx<- vB+1 |
| or %ecx, %eax # check for divide by zero |
| je common_errDivideByZero # handle divide by zero |
| movl %ecx, -8(%esp) # push arg vB+1 |
| movq (rFP, rINST, 4), %xmm0 # %xmm0<- vA,vA+1 |
| jmp .L${opcode}_break |
| %break |
| .L${opcode}_break: |
| movq %xmm0, -20(%esp) # push arg vA, vA+1 |
| lea -20(%esp), %esp |
| call $func # call func |
| lea 20(%esp), %esp |
| movl %eax, (rFP, rINST, 4) # vA<- return low |
| movl %edx, 4(rFP, rINST, 4) # vA<- return high |
| FFETCH_ADV 1, %ecx # %ecx<- next instruction hi; fetch, advance |
| FGETOP_JMP 1, %ecx # jump to next instruction; getop, jmp |