diff options
Diffstat (limited to 'src/systemc/tests/systemc/misc/examples/a2901/a2901_alu.cpp')
-rw-r--r-- | src/systemc/tests/systemc/misc/examples/a2901/a2901_alu.cpp | 88 |
1 files changed, 88 insertions, 0 deletions
diff --git a/src/systemc/tests/systemc/misc/examples/a2901/a2901_alu.cpp b/src/systemc/tests/systemc/misc/examples/a2901/a2901_alu.cpp new file mode 100644 index 000000000..b8862c63d --- /dev/null +++ b/src/systemc/tests/systemc/misc/examples/a2901/a2901_alu.cpp @@ -0,0 +1,88 @@ +/***************************************************************************** + + 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. + + *****************************************************************************/ + +/***************************************************************************** + + a2901_alu.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 "a2901_alu.h" + +void +a2901_alu::entry() +{ + int I53 = I.read().range(5,3); + + R_ext_v = (I53 == 0x1) ? sc_int<5> (0xf & ~(RE.read())) + : sc_int<5>( RE.read() ); + S_ext_v = (I53 == 0x2) ? sc_int<5> (0xf & ~(S.read()) ) + : sc_int<5>( S.read() ); + R_ext.write(R_ext_v); + S_ext.write(S_ext_v); + + switch (I53) { + case 0x0: + case 0x1: + case 0x2: + result = R_ext_v + S_ext_v + C0.read(); + break; + case 0x3: + result = R_ext_v | S_ext_v; + break; + case 0x4: + result = R_ext_v & S_ext_v; + break; + case 0x5: + result = ~(R_ext_v) & S_ext_v; + break; + case 0x6: + result = R_ext_v ^ S_ext_v; + break; + default: + result = ~(R_ext_v ^ S_ext_v); + } + + F.write(result); + OVR.write(!(R_ext_v[3] ^ S_ext_v[3]) & (R_ext_v[3] ^ result[3])); + //C4.write(result[4]); + C4.write((bool)result[4]); + temp_p = R_ext_v | S_ext_v; + temp_g = R_ext_v & S_ext_v; + Pbar.write((temp_p[0] & temp_p[1] & temp_p[2] & temp_p[3]) ? 0 : 1); + Gbar.write((temp_g[3] | + (temp_p[3] & temp_g[2]) | + (temp_p[3] & temp_p[2] & temp_g[1]) | + (temp_p[3] & temp_p[2] & temp_p[1] & temp_g[0])) ? 0 : 1); + //F3.write(result[3]); + F3.write((bool)result[3]); + F30.write((result[3] | result[2] | result[1] | result[0]) ? 0 : 1); +} |