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label.cpp
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label.cpp
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#include <iostream>
#include <string>
#include <fstream>
#include "getWord.h"
using namespace std;
class FileAssembly {
protected:
string linkFile;
struct Label {
string labelName;
int labelAddress = -1;
Label* next = nullptr;
};
Label* labelArray = nullptr;
public:
FileAssembly(string _linkFile) : linkFile(_linkFile) {
ifstream fileIn;
fileIn.open(linkFile);
string offsetLine = "";
while(1) {
getline(fileIn, offsetLine);
string label = getWord(offsetLine, 1);
if(!label.compare(".text")) break;
}
int countAddress = 0;
while(!fileIn.eof()) {
getline(fileIn, offsetLine);
string word1 = getWord(offsetLine, 1);
if((int)offsetLine.find(":") == -1 && word1.compare("")) countAddress++;
if((int)offsetLine.find(":") != -1) {
string label = getWord(offsetLine, 1);
if(labelArray == nullptr) {
labelArray = new Label;
labelArray->labelName = label;
labelArray->labelAddress = countAddress * 4;
}
else {
Label* seeker = labelArray;
while(seeker != nullptr) {
if(seeker->next == nullptr) {
seeker->next = new Label;
seeker->next->labelName = label;
seeker->next->labelAddress = countAddress * 4;
break;
}
seeker = seeker->next;
}
}
string word2 = getWord(offsetLine, 2);
if(word2.compare("")) countAddress++;
}
}
// Label* seeker = labelArray;
// while(seeker != nullptr) {
// if(seeker->labelAddress > (countAddress - 1) * 4) seeker->labelAddress = -1;
// seeker = seeker->next;
// }
// seeker = labelArray;
// while(seeker != nullptr) {
// cout << seeker->labelName << ' ' << seeker->labelAddress << '\n';
// seeker = seeker->next;
// }
// cout << "Done";
}
};
int main() {
FileAssembly input("assembly.txt");
return 0;
}