| /***************************************************************************** |
| |
| Licensed to Accellera Systems Initiative Inc. (Accellera) under one or |
| more contributor license agreements. See the NOTICE file distributed |
| with this work for additional information regarding copyright ownership. |
| Accellera licenses this file to you 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. |
| |
| *****************************************************************************/ |
| |
| /***************************************************************************** |
| |
| a2901_alu_inputs.cpp -- |
| |
| Original Author: Martin Janssen, Synopsys, Inc., 2002-02-15 |
| |
| *****************************************************************************/ |
| |
| /***************************************************************************** |
| |
| MODIFICATION LOG - modifiers, enter your name, affiliation, date and |
| changes you are making here. |
| |
| Name, Affiliation, Date: |
| Description of Modification: |
| |
| *****************************************************************************/ |
| |
| #include "a2901_alu_inputs.h" |
| |
| void |
| a2901_alu_inputs::entry() |
| { |
| int4 Av; |
| int4 B; |
| |
| Av = RAM[Aadd.read()]; |
| B = RAM[Badd.read()]; |
| A.write(Av); |
| |
| switch((int)(I.read().range(2,0))) { |
| case 0x0: |
| case 0x1: |
| RE.write(Av); |
| break; |
| case 0x2: |
| case 0x3: |
| case 0x4: |
| RE.write(0x0); |
| break; |
| default: |
| RE.write(D.read()); |
| } |
| |
| switch((int)(I.read().range(2,0))) { |
| case 0x4: |
| case 0x5: |
| S.write(Av); |
| break; |
| case 0x1: |
| case 0x3: |
| S.write(B); |
| break; |
| case 0x7: |
| S.write(0x0); |
| break; |
| default: |
| S.write(Q.read()); |
| } |
| } |