| /***************************************************************************** |
| |
| 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. |
| |
| *****************************************************************************/ |
| |
| /***************************************************************************** |
| |
| subtract.cpp -- |
| |
| Original Author: Rocco Jonack, Synopsys, Inc., 1999-07-30 |
| |
| *****************************************************************************/ |
| |
| /***************************************************************************** |
| |
| MODIFICATION LOG - modifiers, enter your name, affiliation, date and |
| changes you are making here. |
| |
| Name, Affiliation, Date: |
| Description of Modification: |
| |
| *****************************************************************************/ |
| |
| |
| #include "subtract.h" |
| |
| void subtraction::entry(){ |
| |
| int tmp1; |
| sc_bigint<4> tmp2; |
| sc_biguint<4> tmp3; |
| sc_bigint<8> tmp4; |
| sc_biguint<8> tmp5; |
| |
| // reset_loop |
| if (reset.read() == true) { |
| out_valid.write(false); |
| wait(); |
| } else wait(); |
| |
| // |
| // main loop |
| // |
| // |
| while(1) { |
| while(in_valid.read()==false) wait(); |
| wait(); |
| |
| //reading the inputs |
| tmp1 = in_value1.read(); |
| tmp2 = in_value2.read(); |
| tmp3 = in_value3.read(); |
| tmp4 = in_value4.read(); |
| tmp5 = in_value5.read(); |
| |
| //execute operations |
| tmp1 = tmp1 - 1; |
| tmp2 = tmp2 - 1; |
| tmp3 = tmp3 - 1; |
| tmp4 = tmp4 - 1; |
| tmp5 = tmp5 - 1; |
| wait(); |
| |
| // write outputs |
| out_value1.write(tmp1); |
| out_value2.write(tmp2); |
| out_value3.write(tmp3); |
| out_value4.write(tmp4); |
| out_value5.write(tmp5); |
| out_valid.write(true); |
| wait(); |
| out_valid.write(false); |
| wait(); |
| // write outputs |
| out_value1.write(tmp1--); |
| out_value2.write(tmp2--); |
| out_value3.write(tmp3--); |
| out_value4.write(tmp4--); |
| out_value5.write(tmp5--); |
| out_valid.write(true); |
| wait(); |
| out_valid.write(false); |
| wait(); |
| // write outputs |
| out_value1.write(--tmp1); |
| out_value2.write(--tmp2); |
| out_value3.write(--tmp3); |
| out_value4.write(--tmp4); |
| out_value5.write(--tmp5); |
| out_valid.write(true); |
| wait(); |
| out_valid.write(false); |
| wait(); |
| //execute operations |
| tmp1 = tmp1 - 254; |
| tmp2 = tmp2 - 14; |
| tmp3 = tmp3 - 14; |
| tmp4 = tmp4 - 254; |
| tmp5 = tmp5 - 254; |
| wait(); |
| |
| // write outputs |
| out_value1.write(tmp1); |
| out_value2.write(tmp2); |
| out_value3.write(tmp3); |
| out_value4.write(tmp4); |
| out_value5.write(tmp5); |
| out_valid.write(true); |
| wait(); |
| out_valid.write(false); |
| wait(); |
| //execute operations |
| tmp1 -= 254; |
| tmp2 -= 14; |
| tmp3 -= 14; |
| tmp4 -= 254; |
| tmp5 -= 254; |
| wait(); |
| |
| // write outputs |
| out_value1.write(tmp1); |
| out_value2.write(tmp2); |
| out_value3.write(tmp3); |
| out_value4.write(tmp4); |
| out_value5.write(tmp5); |
| out_valid.write(true); |
| wait(); |
| out_valid.write(false); |
| wait(); |
| //execute operations with signed and unsigned mix and mixed bit width |
| tmp1 = (tmp3 - tmp2).to_int(); |
| tmp2 = tmp2 - tmp4; |
| tmp3 = tmp3 - tmp5; |
| tmp4 = tmp4 - tmp5; |
| tmp5 = tmp4 - tmp5; |
| wait(); |
| |
| // write outputs |
| out_value1.write(tmp1); |
| out_value2.write(tmp2); |
| out_value3.write(tmp3); |
| out_value4.write(tmp4); |
| out_value5.write(tmp5); |
| out_valid.write(true); |
| wait(); |
| out_valid.write(false); |
| wait(); |
| } |
| } |
| |
| // EOF |
| |