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handlefunction.cpp
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178 lines (157 loc) · 5.9 KB
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#include "handlefunction.h"
QString ConvertBinary(int data, int bits)
{
if (data < 0)
{
data = (1 << bits) + data;
QString binaryString = QString::fromStdString(std::bitset<16>(data).to_string());
return binaryString.right(bits).rightJustified(bits, '1');
}
else
{
QString binaryString = QString::fromStdString(std::bitset<16>(data).to_string());
return binaryString.right(bits).rightJustified(bits, '0');
}
}
QString convertRegister(const QString ®) {
return ConvertBinary(reg.mid(1).toInt(), 3);
}
QString convertImmediate(const QString &imm, int bits) {
return ConvertBinary(imm.mid(1).toInt(), bits);
}
QString handleADD(const QVector<QString> &tokens) {
QString dr = convertRegister(tokens[1]);
QString sr1 = convertRegister(tokens[2]);
if (tokens[3].startsWith('R')) {
QString sr2 = convertRegister(tokens[3]);
QString inst="0001" + dr + sr1 + "000" + sr2;
return inst;
} else {
QString imm5 = convertImmediate(tokens[3], 5);
QString inst="0001" + dr + sr1 + "1" + imm5;
return inst;
}
}
QString handleAND(const QVector<QString> &tokens) {
QString dr = convertRegister(tokens[1]);
QString sr1 = convertRegister(tokens[2]);
if (tokens[3].startsWith('R')) {
QString sr2 = convertRegister(tokens[3]);
QString inst="0101" + dr + sr1 + "000" + sr2;
return inst;
} else {
QString imm5 = convertImmediate(tokens[3], 5);
QString inst="0101" + dr + sr1 + "1" + imm5;
return inst;
}
}
QString handleBR(const QVector<QString> &tokens, const QMap<QString, uint16_t> &labels, uint16_t currentAddress) {
QString n ;
QString z ;
QString p ;
if(tokens[0].contains('p'))
p="1";
else
p="0";
if(tokens[0].contains('z'))
z="1";
else
z="0";
if(tokens[0].contains('n'))
n="1";
else
n="0";
int offset = labels.value(tokens[1]) - currentAddress - 1;
QString offsetBinary = ConvertBinary(offset, 9);
QString inst="0000" + n + z + p + offsetBinary;
return inst;
}
QString handleJMP(const QVector<QString> &tokens) {
QString baseR = convertRegister(tokens[1]);
return "1100000" + baseR + "000000";
}
QString handleJSR(const QVector<QString> &tokens, const QMap<QString, uint16_t> &labels, uint16_t currentAddress) {
int16_t offset = labels.value(tokens[1]) - currentAddress - 1;
QString BinaryOffser = ConvertBinary(offset, 11);
return "01001" + BinaryOffser;
}
QString handleJSRR(const QVector<QString> &tokens) {
QString baseR = convertRegister(tokens[1]);
return "0100000" + baseR + "000000";
}
QString handleLD(const QVector<QString> &tokens, const QMap<QString, uint16_t> &labels, uint16_t currentAddress) {
QString dr = convertRegister(tokens[1]);
int offset = labels.value(tokens[2]) - currentAddress - 1;
return "0010" + dr + ConvertBinary(offset, 9);
}
QString handleLDI(const QVector<QString> &tokens, const QMap<QString, uint16_t> &labels, uint16_t currentAddress) {
QString dr = convertRegister(tokens[1]);
int offset = labels.value(tokens[2]) - currentAddress - 1;
return "1010" + dr + ConvertBinary(offset, 9);
}
QString handleLDR(const QVector<QString> &tokens) {
QString dr = convertRegister(tokens[1]);
QString baseR = convertRegister(tokens[2]);
int offset = tokens[3].mid(1).toInt();
return "0110" + dr + baseR + ConvertBinary(offset, 6);
}
QString handleLEA(const QVector<QString> &tokens, const QMap<QString, uint16_t> &labels, uint16_t currentAddress) {
QString dr = convertRegister(tokens[1]);
int offset = labels.value(tokens[2]) - currentAddress - 1;
return "1110" + dr + ConvertBinary(offset, 9);
}
QString handleNOT(const QVector<QString> &tokens) {
QString dr = convertRegister(tokens[1]);
QString sr = convertRegister(tokens[2]);
return "1001" + dr + sr + "111111";
}
QString handleRET() {
return "1100000111000000";
}
QString handleST(const QVector<QString> &tokens, const QMap<QString, uint16_t> &labels, uint16_t currentAddress) {
QString sr = convertRegister(tokens[1]);
int offset = labels.value(tokens[2]) - currentAddress - 1;
return "0011" + sr + ConvertBinary(offset, 9);
}
QString handleSTI(const QVector<QString> &tokens, const QMap<QString, uint16_t> &labels, uint16_t currentAddress) {
QString sr = convertRegister(tokens[1]);
int offset = labels.value(tokens[2]) - currentAddress - 1;
return "1011" + sr + ConvertBinary(offset, 9);
}
QString handleSTR(const QVector<QString> &tokens) {
QString sr = convertRegister(tokens[1]);
QString baseR = convertRegister(tokens[2]);
int offset = tokens[3].mid(1).toInt();
return "0111" + sr + baseR + ConvertBinary(offset, 6);
}
QString handleHALT() {
return "1111000000100101";
}
QString handleDEC(const QVector<QString> &tokens) {
bool correct;
int16_t value = tokens[1].toInt(&correct);
if (!correct) {
QMessageBox msgBox;
msgBox.setWindowTitle("Error");
msgBox.setText("Invalid .DEC value: " + tokens[1]);
msgBox.setIcon(QMessageBox::Critical);
msgBox.setStyleSheet("QMessageBox { background-color: grey; }");
msgBox.exec();
return "";
}
return ConvertBinary(value, 16);
}
QString handleHEX(const QVector<QString> &tokens) {
bool correct;
uint16_t value = tokens[1].toUInt(&correct, 16);
if (!correct) {
QMessageBox msgBox;
msgBox.setWindowTitle("Error");
msgBox.setText("Invalid .HEX value: " + tokens[1]);
msgBox.setIcon(QMessageBox::Critical);
msgBox.setStyleSheet("QMessageBox { background-color: grey; }");
msgBox.exec();
return "";
}
return ConvertBinary(value, 16);
}