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p01.cpp
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p01.cpp
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//----------------------------------------------------------
// Author: Steven Chambers
// Student ID: *20342421
// E-mail: [email protected]
// Course: CMSC 3833 - Computer Organization II
// CRN: 11404, Autumn 2014
// Project: p01
// Due: November 10, 2014
// Account: tt002
//---------------------------------------------------------
#include <iostream>
#include <fstream>
#include <cstdlib>
#include <string>
#include <cstring>
#include <iomanip>
#include "Register01.h"
using namespace std;
struct CommandLineException
{
CommandLineException(int max, int actual)
{
cout << endl << "Too many command line arguments." << endl;
cout << "a Maximum of " << max << " arguments are permitted" << endl;
cout << actual << " arguments were entered." << endl;
}
};
struct FileException
{
FileException(const char*fn)
{
cout << endl << "File " << fn << " could not be opened." << endl;
}
};
char decoder(char c2, char c1, char c0)
{
if(c2 == '0' && c1 == '0' && c0 == '0')
return '+';
if(c2 == '0' && c1 == '0' && c0 == '1')
return 'v';
if(c2 == '0' && c1 == '1' && c0 == '0')
return '-';
if(c2 == '0' && c1 == '1' && c0 == '1')
return '^';
if(c2 == '1' && c1 == '0' && c0 == '0')
return 'l';
if(c2 == '1' && c1 == '0' && c0 == '1')
return 'L';
if(c2 == '1' && c1 == '1' && c0 == '0')
return 'p';
if(c2 == '1' && c1 == '1' && c0 == '1')
return 'P';
}
int main(int argc, char* argv[])
{
try
{
char ifn[255], ofn[255];
switch (argc)
{
case 1:
cout << "Enter the input file name: ";
cin >> ifn;
cout << "Enter the output file name: ";
cin >> ofn;
break;
case 2:
strcpy(ifn, argv[1]);
cout << "Enter the output file name: ";
cin >> ofn;
break;
case 3:
strcpy(ifn, argv[1]);
strcpy(ofn, argv[2]);
break;
default:
throw CommandLineException(2, argc-1);
break;
}
ifstream i(ifn);
if(!i)
throw FileException(ifn);
ofstream o(ofn);
if(!o)
throw FileException(ofn);
Register R0 = Register(8);
Register R1 = Register(8);
while(i.peek() != EOF)
{
char c2,c1,c0;
char inCString[255];
char data[9];
bool dataFound = false;
i.getline(inCString,255);
string inString = string(inCString);
if(inString[inString.size()-1] == '\r')
inString.resize(inString.size()-1);
if(inString.length() == 3)
{
c2 = inString[0];
c1 = inString[1];
c0 = inString[2];
}
else if(inString.length() == 12)
{
dataFound = true;
c2 = inString[0];
c1 = inString[1];
c0 = inString[2];
for (int i = 4;i < 12;i++)
{
data[i-4] = inString[i];
}
data [8] = '\0';
}
else
{
cout << "For shame! You did not follow the input file format!"<< endl;
cout << "The length of inString is: " << inString.size() << endl;
cout << "The inString was: " << inString << "$" << endl;
exit(EXIT_FAILURE);
}
char op = decoder(c2,c1,c0);
string dataString= string(data);
switch(op)
{
case '+':
o << setw(20) << setfill('-')<< "-" << endl;
o << "Initial conditions:" << endl << "R0: " << R0.printReg() <<endl << "R1: " << R1.printReg() << endl;
o << "op code: 000 operation: R0 <-- R0 XOR R1"<<endl;
R0.regLoad(R0.regXOR(R1));
o << "Post operation conditions:" << endl << "R0: " << R0.printReg() <<endl << "R1: "<< R1.printReg() << endl;
o << setw(20) << setfill('-')<< "-" << endl << endl;
break;
case 'v':
o << setw(20) << setfill('-')<< "-" << endl;
o << "Initial conditions:" << endl << "R0: " << R0.printReg() <<endl << "R1: " << R1.printReg() << endl;
o << "op code: 001 operation: R0 <-- R0 OR R1"<<endl;
R0.regLoad(R0.regOr(R1));
o << "Post operation conditions:" << endl << "R0: " << R0.printReg() <<endl << "R1: "<< R1.printReg() << endl;
o << setw(20) << setfill('-')<< "-" << endl << endl;
break;
case '-':
o << setw(20) << setfill('-')<< "-" << endl;
o << "Initial conditions:" << endl << "R0: " << R0.printReg() <<endl << "R1: " << R1.printReg() << endl;
o << "op code: 010 operation: R0 <-- R0 XNOR R1"<<endl;
R0.regLoad(R0.regXNOR(R1));
o << "Post operation conditions:" << endl << "R0: " << R0.printReg() <<endl << "R1: "<< R1.printReg() << endl;
o << setw(20) << setfill('-')<< "-" << endl << endl;
break;
case '^':
o << setw(20) << setfill('-')<< "-" << endl;
o << "Initial conditions:" << endl << "R0: " << R0.printReg() <<endl << "R1: " << R1.printReg() << endl;
o << "op code: 011 operation: R0 <-- R0 AND R1"<<endl;
R0.regLoad(R0.regAnd(R1));
o << "Post operation conditions:" << endl << "R0: " << R0.printReg() <<endl << "R1: "<< R1.printReg() << endl;
o << setw(20) << setfill('-')<< "-" << endl << endl;
break;
case 'l':
o << setw(20) << setfill('-')<< "-" << endl;
o << "Initial conditions:" << endl << "R0: " << R0.printReg() <<endl << "R1: " << R1.printReg() << endl;
o << "op code: 100 operation: R0 <-- D"<<endl;
R0.regLoad(dataString);
o << "Post operation conditions:" << endl << "R0: " << R0.printReg() <<endl << "R1: "<< R1.printReg() << endl;
o << setw(20) << setfill('-')<< "-" << endl<< endl;
break;
case 'L':
o << setw(20) << setfill('-')<< "-" << endl;
o << "Initial conditions:" << endl << "R0: " << R0.printReg() <<endl << "R1: " << R1.printReg() << endl;
o << "op code: 101 operation: R1 <-- D"<<endl;
R1.regLoad(dataString);
o << "Post operation conditions:" << endl << "R0: " << R0.printReg() <<endl << "R1: "<< R1.printReg() << endl;
o << setw(20) << setfill('-')<< "-" << endl<< endl;
break;
case 'p':
o << setw(20) << setfill('-')<< "-" << endl;
o << "Initial conditions:" << endl << "R0: " << R0.printReg() <<endl << "R1: " << R1.printReg() << endl;
o << "op code: 110 operation: Print R0 "<<endl;
o <<"R0 : " << R0.printReg() << endl;
cout <<"R0: " << R0.printReg() << endl;
o << "Post operation conditions:" << endl << "R0: " << R0.printReg() <<endl << "R1: "<< R1.printReg() << endl;
o << setw(20) << setfill('-')<< "-" << endl<< endl;
break;
case 'P':
o << setw(20) << setfill('-')<< "-" << endl;
o << "Initial conditions:" << endl << "R0: " << R0.printReg() <<endl << "R1: " << R1.printReg() << endl;
o << "op code: 111 operation: Print R1"<<endl;
o << "R1: " <<R1.printReg() << endl;
cout <<"R1: " << R1.printReg() << endl;
o << "Post operation conditions:" << endl << "R0: " << R0.printReg() <<endl << "R1: "<< R1.printReg() << endl;
o << setw(20) << setfill('-')<< "-" << endl<< endl;
break;
default:
;
}
}
}catch (...)
{
cout << "Program closed." << endl;
exit(EXIT_FAILURE);
}
return 0;
}