subtract.cpp revision 12855:588919e0e4aa
1/***************************************************************************** 2 3 Licensed to Accellera Systems Initiative Inc. (Accellera) under one or 4 more contributor license agreements. See the NOTICE file distributed 5 with this work for additional information regarding copyright ownership. 6 Accellera licenses this file to you under the Apache License, Version 2.0 7 (the "License"); you may not use this file except in compliance with the 8 License. You may obtain a copy of the License at 9 10 http://www.apache.org/licenses/LICENSE-2.0 11 12 Unless required by applicable law or agreed to in writing, software 13 distributed under the License is distributed on an "AS IS" BASIS, 14 WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or 15 implied. See the License for the specific language governing 16 permissions and limitations under the License. 17 18 *****************************************************************************/ 19 20/***************************************************************************** 21 22 subtract.cpp -- 23 24 Original Author: Rocco Jonack, Synopsys, Inc., 1999-07-30 25 26 *****************************************************************************/ 27 28/***************************************************************************** 29 30 MODIFICATION LOG - modifiers, enter your name, affiliation, date and 31 changes you are making here. 32 33 Name, Affiliation, Date: 34 Description of Modification: 35 36 *****************************************************************************/ 37 38 39#include "subtract.h" 40 41void subtraction::entry(){ 42 43 int tmp1; 44 sc_bigint<4> tmp2; 45 sc_biguint<4> tmp3; 46 sc_bigint<8> tmp4; 47 sc_biguint<8> tmp5; 48 49 // reset_loop 50 if (reset.read() == true) { 51 out_valid.write(false); 52 wait(); 53 } else wait(); 54 55 // 56 // main loop 57 // 58 // 59 while(1) { 60 while(in_valid.read()==false) wait(); 61 wait(); 62 63 //reading the inputs 64 tmp1 = in_value1.read(); 65 tmp2 = in_value2.read(); 66 tmp3 = in_value3.read(); 67 tmp4 = in_value4.read(); 68 tmp5 = in_value5.read(); 69 70 //execute operations 71 tmp1 = tmp1 - 1; 72 tmp2 = tmp2 - 1; 73 tmp3 = tmp3 - 1; 74 tmp4 = tmp4 - 1; 75 tmp5 = tmp5 - 1; 76 wait(); 77 78 // write outputs 79 out_value1.write(tmp1); 80 out_value2.write(tmp2); 81 out_value3.write(tmp3); 82 out_value4.write(tmp4); 83 out_value5.write(tmp5); 84 out_valid.write(true); 85 wait(); 86 out_valid.write(false); 87 wait(); 88 // write outputs 89 out_value1.write(tmp1--); 90 out_value2.write(tmp2--); 91 out_value3.write(tmp3--); 92 out_value4.write(tmp4--); 93 out_value5.write(tmp5--); 94 out_valid.write(true); 95 wait(); 96 out_valid.write(false); 97 wait(); 98 // write outputs 99 out_value1.write(--tmp1); 100 out_value2.write(--tmp2); 101 out_value3.write(--tmp3); 102 out_value4.write(--tmp4); 103 out_value5.write(--tmp5); 104 out_valid.write(true); 105 wait(); 106 out_valid.write(false); 107 wait(); 108 //execute operations 109 tmp1 = tmp1 - 254; 110 tmp2 = tmp2 - 14; 111 tmp3 = tmp3 - 14; 112 tmp4 = tmp4 - 254; 113 tmp5 = tmp5 - 254; 114 wait(); 115 116 // write outputs 117 out_value1.write(tmp1); 118 out_value2.write(tmp2); 119 out_value3.write(tmp3); 120 out_value4.write(tmp4); 121 out_value5.write(tmp5); 122 out_valid.write(true); 123 wait(); 124 out_valid.write(false); 125 wait(); 126 //execute operations 127 tmp1 -= 254; 128 tmp2 -= 14; 129 tmp3 -= 14; 130 tmp4 -= 254; 131 tmp5 -= 254; 132 wait(); 133 134 // write outputs 135 out_value1.write(tmp1); 136 out_value2.write(tmp2); 137 out_value3.write(tmp3); 138 out_value4.write(tmp4); 139 out_value5.write(tmp5); 140 out_valid.write(true); 141 wait(); 142 out_valid.write(false); 143 wait(); 144 //execute operations with signed and unsigned mix and mixed bit width 145 tmp1 = (tmp3 - tmp2).to_int(); 146 tmp2 = tmp2 - tmp4; 147 tmp3 = tmp3 - tmp5; 148 tmp4 = tmp4 - tmp5; 149 tmp5 = tmp4 - tmp5; 150 wait(); 151 152 // write outputs 153 out_value1.write(tmp1); 154 out_value2.write(tmp2); 155 out_value3.write(tmp3); 156 out_value4.write(tmp4); 157 out_value5.write(tmp5); 158 out_valid.write(true); 159 wait(); 160 out_valid.write(false); 161 wait(); 162 } 163} 164 165// EOF 166 167