verilator/src/V3Number_test.cpp

// -*- mode: C++; c-file-style: "cc-mode" -*-
//*************************************************************************
// DESCRIPTION: Verilator: Netlist (top level) functions
//
// Code available from: https://verilator.org
//
//*************************************************************************
//
// Copyright 2003-2020 by Wilson Snyder. This program is free software; you
// can redistribute it and/or modify it under the terms of either the GNU
// Lesser General Public License Version 3 or the Perl Artistic License
// Version 2.0.
// SPDX-License-Identifier: LGPL-3.0-only OR Artistic-2.0
//
//*************************************************************************

// CHEAT!
#define V3NUMBER_ASCII_BINARY
#define _V3ERROR_NO_GLOBAL_ 1

#include <config_build.h>
#include "verilatedos.h"

#include "V3Error.cpp"
#include "V3FileLine.cpp"
#include "V3Number.cpp"
#include "V3Number.h"

#include <algorithm>
#include <cstdarg>

void test(const string& lhss, const string& op, const string& rhss, const string& exps) {
    char* l1 = strdup(lhss.c_str());
    char* r1 = strdup(rhss.c_str());
    char* e1 = strdup(exps.c_str());

    FileLine fl = new FileLine(FileLine::builtInFinename());

    V3Number lhnum (fl, l1);
    V3Number rhnum (fl, r1);
    V3Number expnum (fl, e1);
    V3Number gotnum (fl, expnum.width());

    if (op=="redOr")            gotnum.opRedOr   (lhnum);
    else if (op=="redAnd")      gotnum.opRedAnd  (lhnum);
    else if (op=="redXor")      gotnum.opRedXor  (lhnum);
    else if (op=="redXnor")     gotnum.opRedXnor (lhnum);
    else if (op=="concat")      gotnum.opConcat  (lhnum, rhnum);
    else if (op=="repl")        gotnum.opRepl    (lhnum, rhnum);
    else if (op=="~")           gotnum.opNot     (lhnum);
    else if (op=="!")           gotnum.opLogNot  (lhnum);
    else if (op=="negate")      gotnum.opNegate  (lhnum);
    else if (op=="+")           gotnum.opAdd     (lhnum, rhnum);
    else if (op=="-")           gotnum.opSub     (lhnum, rhnum);
    else if (op=="*")           gotnum.opMul     (lhnum, rhnum);
    else if (op=="/")           gotnum.opDiv     (lhnum, rhnum);
    else if (op=="%")           gotnum.opModDiv  (lhnum, rhnum);
    else if (op=="&")           gotnum.opAnd     (lhnum, rhnum);
    else if (op=="|")           gotnum.opOr      (lhnum, rhnum);
    else if (op=="<")           gotnum.opLt      (lhnum, rhnum);
    else if (op==">")           gotnum.opGt      (lhnum, rhnum);
    else if (op==">>")          gotnum.opShiftR  (lhnum, rhnum);
    else if (op=="<<")          gotnum.opShiftL  (lhnum, rhnum);
    else if (op=="==")          gotnum.opEq      (lhnum, rhnum);
    else if (op=="===")         gotnum.opCaseEq  (lhnum, rhnum);
    else if (op=="==?")         gotnum.opWildEq  (lhnum, rhnum);
    else if (op=="!=")          gotnum.opNeq     (lhnum, rhnum);
    else if (op=="!==")         gotnum.opCaseNeq (lhnum, rhnum);
    else if (op=="!=?")         gotnum.opWildNeq (lhnum, rhnum);
    else if (op=="<=")          gotnum.opLte     (lhnum, rhnum);
    else if (op==">=")          gotnum.opGte     (lhnum, rhnum);
    else if (op=="&&")          gotnum.opLogAnd  (lhnum, rhnum);
    else if (op=="||")          gotnum.opLogOr   (lhnum, rhnum);
    else v3fatalSrc("Bad opcode: "<<op);

    UINFO(0,"------- Test:\n"
          <<"       "<<lhnum<<" "<<op<<endl
          <<"       "<<rhnum<<endl
          <<"     = "<<expnum<<endl
          <<"    =? "<<gotnum<<endl);

    V3Number ok (fl, 1);
    ok.opCaseEq(expnum, gotnum);
    if (ok.toUInt()!=1) {
        v3fatalSrc("%Error:Test FAILED");
    }

    free(l1);
    free(r1);
    free(e1);
}

int main() {
    UINFO(0,"Test starting\n");

    test("32'b10", "|", "32'b10", "32'b10");
    test( "2'bx0", "|", "2'b10", "2'b10");
    test("32'b0x", "|", "32'b10", "32'b1x");
    test("32'b10", "&", "32'b11", "32'b10");
    test("32'b10", "+", "32'b10", "32'b100");
    test("3'b000", "negate", "", "3'b000");
    test("3'b001", "negate", "", "3'b111");
    test("32'b11", "-", "32'b001", "32'b10");
    test("3'b000", "-", "3'b111", "3'b001");
    test("3'b000", "-", "3'b000", "3'b000");
    test("57'h000000010F0CCE7", "*", "57'h10", "57'h10F0CCE70");
    test("57'h000000010F0CCE7", "*", "57'h0DE34E7FFFFFFFF", "57'h02A9D57EF0F3319");
    test("67'h7FFFFFFFFFFFFFFFF", "*", "67'h4000000003C8A8D6A", "67'h3FFFFFFFFC3757296");
    test("99'h7FFFFFFFFFFFFFFFFFFFFFFFF", "*", "99'h0000000000000000091338A80", "99'h7FFFFFFFFFFFFFFFF6ECC7580");

    cout<<"Test completed\n";
}

//###################################################################
// Local Variables:
// compile-command: "make V3Number_test && ./V3Number_test "
// End: