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Diffstat (limited to 'src/systemc/tests/systemc/datatypes/int/arith/arith02/arith02.cpp')
| -rw-r--r-- | src/systemc/tests/systemc/datatypes/int/arith/arith02/arith02.cpp | 157 |
1 files changed, 157 insertions, 0 deletions
diff --git a/src/systemc/tests/systemc/datatypes/int/arith/arith02/arith02.cpp b/src/systemc/tests/systemc/datatypes/int/arith/arith02/arith02.cpp new file mode 100644 index 000000000..90919bfbd --- /dev/null +++ b/src/systemc/tests/systemc/datatypes/int/arith/arith02/arith02.cpp @@ -0,0 +1,157 @@ +/***************************************************************************** + + 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. + + *****************************************************************************/ + +/***************************************************************************** + + arith02.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 <stdlib.h> +#include "systemc.h" +#include "isaac.h" + +QTIsaac<8> rng; // Platform independent random number generator. + +void +check_string( const sc_signed& z, int v ) +{ + std::string buf(z.to_string( SC_BIN ) ); + if (z < 0) { + sc_assert(buf[2] == '1'); + } else { + sc_assert(buf[2] == '0'); + } +} + +int +sc_main( int argc, char* argv[] ) +{ + signed int vali[5] = { 0, 1, -1, 7, -8 }; + signed int valj[5] = { 0, 1, -1, 7, -8 }; + + for (int i = 3; i < 32; ++i) { + for (int j = 3; j < 32; ++j) { + cout << "i = " << i << ", j = " << j << endl; + + sc_signed x(i); + sc_signed y(j); + sc_signed z(64); + + vali[3] = (1 << (i - 1)) - 1; + vali[4] = - (1 << (i - 1)); + + valj[3] = (1 << (j - 1)) - 1; + valj[4] = - (1 << (j - 1)); + + /* + // old code - takes too much time. + for (int ii = 0; ii < 100; ++ii) { + for (int jj = 0; jj < 100; ++jj) { + */ + for (int ii = 0; ii < 10; ++ii) { + for (int jj = 0; jj < 10; ++jj) { + signed int qi = (ii < 5) ? vali[ii] : (rng.rand() & ((1 << i) - 1)); + signed int qj = (jj < 5) ? valj[jj] : (rng.rand() & ((1 << j) - 1)); + + if (qi & (1 << (i - 1))) { + qi = (qi << (32 - i)) >> (32 - i); + } + if (qj & (1 << (j - 1))) { + qj = (qj << (32 - j)) >> (32 - j); + } + + x = qi; + sc_assert( x == qi ); + y = qj; + sc_assert( y == qj ); + sc_assert((x == qj) == (qi == qj)); + sc_assert((x == qj) == (qj == x)); + sc_assert((x != qj) == (qi != qj)); + sc_assert((x != qj) == (qj != x)); + sc_assert((x < qj) == (qi < qj)); + sc_assert((x < qj) == (qj > x)); + sc_assert((x <= qj) == (qi <= qj)); + sc_assert((x <= qj) == (qj >= x)); + sc_assert((x > qj) == (qi > qj)); + sc_assert((x > qj) == (qj < x)); + sc_assert((x >= qj) == (qi >= qj)); + sc_assert((x >= qj) == (qj <= x)); + z = x + y; + sc_assert( static_cast<sc_bigint<32> >( z.range(31,0) ) == + (qi + qj) ); + check_string( z, qi + qj ); + z = x - y; + sc_assert( static_cast<sc_bigint<32> >( z.range(31,0) ) == + (qi - qj) ); + check_string( z, qi - qj ); + z = x * y; + sc_assert( static_cast<sc_bigint<32> >( z.range(31,0) ) == + (qi * qj) ); + check_string( z, qi * qj ); + if (y != 0) { + z = x / y; + sc_assert( static_cast<sc_bigint<32> >( z.range(31,0) ) == + (qi / qj) ); + check_string( z, qi / qj ); + z = x % y; + sc_assert( static_cast<sc_bigint<32> >( z.range(31,0) ) == + (qi % qj) ); + check_string( z, qi % qj ); + } + z = x & y; + sc_assert( static_cast<sc_bigint<32> >( z.range(31,0) ) == + (qi & qj) ); + check_string( z, qi & qj ); + z = x | y; + sc_assert( static_cast<sc_bigint<32> >( z.range(31,0) ) == + (qi | qj) ); + check_string( z, qi | qj ); + z = x ^ y; + sc_assert( static_cast<sc_bigint<32> >( z.range(31,0) ) == + (qi ^ qj) ); + check_string( z, qi ^ qj ); + if (jj < i - 1) { + z = x << jj; + for (int r = 0; r < i; ++r) { + sc_assert( (bool) z[r] == !!((qi << jj) & (1 << r)) ); + } + z = x >> jj; + for (int r = 0; r < i; ++r) { + sc_assert( (bool) z[r] == !!((qi >> jj) & (1 << r)) ); + } + } + } + } + } + } + return 0; +} |