| /***************************************************************************** |
| |
| 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. |
| |
| *****************************************************************************/ |
| |
| /***************************************************************************** |
| |
| star103832.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 <systemc.h> |
| |
| struct test : sc_module { |
| |
| sc_in<bool> reset; |
| sc_in_clk clk; |
| sc_in<sc_uint<8> > dati; |
| sc_out<sc_uint<8> > dato; |
| sc_out<bool> done; |
| |
| SC_HAS_PROCESS( test ); |
| |
| test (const char *NAME) : sc_module(NAME) { |
| SC_CTHREAD( reset_loop, clk.pos() ); |
| reset_signal_is(reset,true); |
| end_module(); |
| } |
| |
| void tc_mult_8x8(sc_uint<8> A, sc_uint<8> B, sc_uint<16>& Y); |
| void reset_loop(); |
| }; |
| |
| void test::tc_mult_8x8(sc_uint<8> A, sc_uint<8> B, sc_uint<16>& Z) { |
| sc_uint<8> MantA; |
| sc_uint<16> MantC; |
| sc_uint<1> SignC, SignA, SignB; |
| sc_uint<8> MantB; |
| if (A == 0 || B == 0) { |
| Z = 0; |
| } else { |
| SignA = A[7]; |
| SignB = B[7]; |
| MantA = SignA ? sc_uint<8>(0 - A) : A; |
| MantB = SignB ? sc_uint<8>(0 - B) : B; |
| MantC = MantA * MantB; |
| SignC = SignA ^ SignB; |
| MantC = SignC ? sc_uint<16>(0 - MantC) : MantC; |
| Z = (SignC, MantC.range(14,0)); |
| } |
| } |
| |
| void test::reset_loop() { |
| sc_uint<16> tmp; |
| sc_uint<8> inp; |
| done = 0; |
| dato = 0; |
| tmp = 0; |
| wait(); |
| operational_loop : while (1 != 0) { |
| inp = dati.read(); |
| wait(); |
| tc_mult_8x8( inp, -2, tmp); |
| wait(); |
| done_loop: while (1) { |
| dato = tmp; |
| done = 1; |
| wait(); |
| } |
| } |
| } |
| |