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Diffstat (limited to 'src/systemc/tests/systemc/datatypes/int/arith/arith09/arith09.cpp')
| -rw-r--r-- | src/systemc/tests/systemc/datatypes/int/arith/arith09/arith09.cpp | 122 |
1 files changed, 122 insertions, 0 deletions
diff --git a/src/systemc/tests/systemc/datatypes/int/arith/arith09/arith09.cpp b/src/systemc/tests/systemc/datatypes/int/arith/arith09/arith09.cpp new file mode 100644 index 000000000..f918c0506 --- /dev/null +++ b/src/systemc/tests/systemc/datatypes/int/arith/arith09/arith09.cpp @@ -0,0 +1,122 @@ +/***************************************************************************** + + 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. + + *****************************************************************************/ + +/***************************************************************************** + + arith09.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. + +int +sc_main( int argc, char* argv[] ) +{ + unsigned int vali[5] = { 0, 1, (unsigned)-1, 7, (unsigned)-8 }; + unsigned int valj[5] = { 0, 1, (unsigned)-1, 7, (unsigned)-8 }; + + for (int i = 3; i < 32; ++i) { + for (int j = 3; j < 32; ++j) { + cout << "i = " << i << ", j = " << j << endl; + + sc_unsigned x(i); + sc_unsigned y(j); + sc_unsigned z(64), q(64); + + vali[3] = (1 << (i - 1)) - 1; + vali[4] = - (1 << (i - 1)); + + valj[3] = (1 << (j - 1)) - 1; + valj[4] = - (1 << (j - 1)); + + for (int ii = 0; ii < 100; ++ii) { + for (int jj = 0; jj < 100; ++jj) { + unsigned qi = (ii < 5) ? vali[ii] : + (rng.rand() & ((1 << i) - 1)); + unsigned 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; + y = qj; + z = x * y; + sc_assert( (sc_unsigned)( z.range(31,0) ) == + (qi * qj) ); + if ( i < 17 ) + { + if ( j < 17 ) // (i < 17) + { + q = (x.range(i-1,0) * y.range(j-1,0)); + } + else // (j >= 17) (i < 17) + { + q = (x.range(i-1,0) * y.range(15,0)) + + ( x.range(i-1,0) * y.range(j-1,16) ) * 65536; + } + } + else + { + if ( j < 17 ) // (i >= 17) + { + q = (x.range(15,0) * y.range(j-1,0)) + + (x.range(i-1,16) * y.range(j-1,0)) * 65536; + } + else // (j >= 17) (i >= 17) + { + q = (x.range(15,0) * y.range(15,0)) + + (x.range(i-1,16) * y.range(15,0) + + x.range(15,0) * y.range(j-1,16)) * 65536 + + ((x.range(i-1,16) * y.range(j-1,16) * 65536) + * 65536); + } + } + sc_assert(z == q); + + if (y != 0) { + z /= y; + sc_assert(z == x); + } + } + } + } + } + return 0; +} |