112855Sgabeblack@google.com/***************************************************************************** 212855Sgabeblack@google.com 312855Sgabeblack@google.com Licensed to Accellera Systems Initiative Inc. (Accellera) under one or 412855Sgabeblack@google.com more contributor license agreements. See the NOTICE file distributed 512855Sgabeblack@google.com with this work for additional information regarding copyright ownership. 612855Sgabeblack@google.com Accellera licenses this file to you under the Apache License, Version 2.0 712855Sgabeblack@google.com (the "License"); you may not use this file except in compliance with the 812855Sgabeblack@google.com License. You may obtain a copy of the License at 912855Sgabeblack@google.com 1012855Sgabeblack@google.com http://www.apache.org/licenses/LICENSE-2.0 1112855Sgabeblack@google.com 1212855Sgabeblack@google.com Unless required by applicable law or agreed to in writing, software 1312855Sgabeblack@google.com distributed under the License is distributed on an "AS IS" BASIS, 1412855Sgabeblack@google.com WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or 1512855Sgabeblack@google.com implied. See the License for the specific language governing 1612855Sgabeblack@google.com permissions and limitations under the License. 1712855Sgabeblack@google.com 1812855Sgabeblack@google.com *****************************************************************************/ 1912855Sgabeblack@google.com 2012855Sgabeblack@google.com/***************************************************************************** 2112855Sgabeblack@google.com 2212855Sgabeblack@google.com array.cpp -- 2312855Sgabeblack@google.com 2412855Sgabeblack@google.com Original Author: Martin Janssen, Synopsys, Inc., 2002-02-15 2512855Sgabeblack@google.com 2612855Sgabeblack@google.com *****************************************************************************/ 2712855Sgabeblack@google.com 2812855Sgabeblack@google.com/***************************************************************************** 2912855Sgabeblack@google.com 3012855Sgabeblack@google.com MODIFICATION LOG - modifiers, enter your name, affiliation, date and 3112855Sgabeblack@google.com changes you are making here. 3212855Sgabeblack@google.com 3312855Sgabeblack@google.com Name, Affiliation, Date: 3412855Sgabeblack@google.com Description of Modification: 3512855Sgabeblack@google.com 3612855Sgabeblack@google.com *****************************************************************************/ 3712855Sgabeblack@google.com 3812855Sgabeblack@google.com// array.cxx -- 3912855Sgabeblack@google.com// Copyright Synopsys 1998 4012855Sgabeblack@google.com// Author : Ric Hilderink 4112855Sgabeblack@google.com// Created On : Wed Dec 30 11:55:50 1998 4212855Sgabeblack@google.com// Status : none 4312855Sgabeblack@google.com// 4412855Sgabeblack@google.com 4512855Sgabeblack@google.com#include <limits.h> 4612855Sgabeblack@google.com#define SC_INCLUDE_FX 4712855Sgabeblack@google.com#include "systemc.h" 4812855Sgabeblack@google.com#include "fx_precision_double.h" 4912855Sgabeblack@google.com 5012855Sgabeblack@google.com// Without this, conversions use the implicit 5112855Sgabeblack@google.com// operator double, which is both lossy and 5212855Sgabeblack@google.com// can cause UB in certain cases. 5312855Sgabeblack@google.comtemplate <typename From> 5412855Sgabeblack@google.comclass converter { 5512855Sgabeblack@google.com From val; 5612855Sgabeblack@google.compublic: 5712855Sgabeblack@google.com converter(From val): val(val) {} 5812855Sgabeblack@google.com operator int() const { return val.to_int(); } 5912855Sgabeblack@google.com operator unsigned int() const { return val.to_uint(); } 6012855Sgabeblack@google.com operator short() const { return val.to_short(); } 6112855Sgabeblack@google.com operator unsigned short() const { return val.to_ushort(); } 6212855Sgabeblack@google.com operator long() const { return val.to_long(); } 6312855Sgabeblack@google.com operator unsigned long() const { return val.to_ulong(); } 6412855Sgabeblack@google.com operator float() const { return val.to_float(); } 6512855Sgabeblack@google.com operator double() const { return val.to_double(); } 6612855Sgabeblack@google.com}; 6712855Sgabeblack@google.com 6812855Sgabeblack@google.comtemplate <typename To, typename From> 6912855Sgabeblack@google.comTo convert(From val) { 7012855Sgabeblack@google.com return converter<From>(val); 7112855Sgabeblack@google.com} 7212855Sgabeblack@google.com 7312855Sgabeblack@google.com 7412855Sgabeblack@google.comtemplate <typename T> 7512855Sgabeblack@google.comvoid show(char const *const name, int i, T val) { 7612855Sgabeblack@google.com cerr << name << "[" << i << "] : " << val.to_double() << " : " << val.to_string(SC_HEX) << "\n"; 7712855Sgabeblack@google.com} 7812855Sgabeblack@google.com 7912855Sgabeblack@google.comtemplate <typename T, typename U> 8012855Sgabeblack@google.comvoid test_fx(U a_mul, U b_init, U b_mul, char const *t_name, char const *u_name) 8112855Sgabeblack@google.com{ 8212855Sgabeblack@google.com cerr << "--array-Inf-Inf-Inf-Inf-Inf- test_fx_" << t_name << "_" << u_name << "\n"; 8312855Sgabeblack@google.com 8412855Sgabeblack@google.com T a(static_cast<U>(0)); 8512855Sgabeblack@google.com T b(b_init); 8612855Sgabeblack@google.com show("a", 0, a); 8712855Sgabeblack@google.com show("b", 0, b); 8812855Sgabeblack@google.com 8912855Sgabeblack@google.com for (U i = 1; i < 4; ++i) { 9012855Sgabeblack@google.com // Be careful here. We don't want a T to ever be implicitly converted, 9112855Sgabeblack@google.com // else we have a double which cannot be safely cast, but converting early 9212855Sgabeblack@google.com // means we can be subject to implicit upcasts. That's minimized by having all 9312855Sgabeblack@google.com // of the values of type U, but if U is smaller than int it can still be 9412855Sgabeblack@google.com // implicitly upcast, ergo the outer cast. 9512855Sgabeblack@google.com a = static_cast<U>(i * i * a_mul); 9612855Sgabeblack@google.com b = static_cast<U>(convert<U>(b) * i * b_mul); 9712855Sgabeblack@google.com show("a", i, a); 9812855Sgabeblack@google.com show("b", i, b); 9912855Sgabeblack@google.com } 10012855Sgabeblack@google.com} 10112855Sgabeblack@google.com 10212855Sgabeblack@google.comtemplate <typename T> 10312855Sgabeblack@google.comvoid batch_test_fx(char const *t_name, int uinit) { 10412855Sgabeblack@google.com cerr << "************** array test_fx_" << t_name << "_\n"; 10512855Sgabeblack@google.com test_fx<T, int >(1, -1, -1, t_name, "int"); 10612855Sgabeblack@google.com test_fx<T, unsigned int >(1, uinit, -1, t_name, "uint"); 10712855Sgabeblack@google.com test_fx<T, short >(1, -1, -1, t_name, "short"); 10812855Sgabeblack@google.com test_fx<T, unsigned short>(1, uinit, -1, t_name, "ushort"); 10912855Sgabeblack@google.com test_fx<T, long >(1, -1, -1, t_name, "long"); 11012855Sgabeblack@google.com test_fx<T, unsigned long >(1, uinit, -1, t_name, "ulong"); 11112855Sgabeblack@google.com test_fx<T, float >(1.123456789f, -1.987654321f, -1.789654123f, t_name, "float"); 11212855Sgabeblack@google.com test_fx<T, double>(1.123456789, -1.987654321, -1.789654123, t_name, "double"); 11312855Sgabeblack@google.com} 11412855Sgabeblack@google.com 11512855Sgabeblack@google.comvoid array() { 11612855Sgabeblack@google.com batch_test_fx<sc_fxval>("float", -1); 11712855Sgabeblack@google.com batch_test_fx<sc_ufix>("ufix", -1); 11812855Sgabeblack@google.com batch_test_fx<sc_fix>("fix", -1); 11912855Sgabeblack@google.com batch_test_fx<sc_fixed<8, 5> >("fixed", 1); 12012855Sgabeblack@google.com batch_test_fx<sc_ufixed<8, 5> >("ufixed", 1); 12112855Sgabeblack@google.com} 122