/** Check if Interrupt occurs, if yes, push PC to Stack & go to 0x4 */
public void checkInterrupt() {
if (interna.getInterrupt() && !isInterrupted) {
// isInterrupted = true;
this.getInterna().getPcstack().push(this.getPC());
this.setPC(0x4 - 1);
interna.clearBitAt(0xb, 7);
}
}
/**
* reset Register, Stack, etc if newProg==true, old Code&Hashmaps deleted
*
* @param newProg boolean true if new Prog is loaded
*/
public void reset(boolean newProg) {
if (newProg == true) {
gui.getListModel().clear();
decoder.clearHashMaps();
}
setPC(0);
curInstruction = 0;
interna.setRegW(0);
interna.initRegister();
interna.initStack();
updateGui();
}
/**
* Bit of Port A is Clicked Checks TMR0 Source Select Bit & impulse edge
*
* @param column Bit of Port A
*/
private void portAClicked(int column) {
int bit = interna.getBitAtNoBank(0x5, 7 - column); // toggle bits
if (bit == 0) interna.setBitAt(0x5, 7 - column);
else interna.clearBitAt(0x5, 7 - column);
boolean oldV = (bit != 0);
boolean newV = (interna.getBitAtNoBank(0x5, 4) != 0);
if (column == 3 && interna.getBitAt(0x81, 5) == 1) { // TMR0 Clock Source Select Bit
if (interna.getBitAt(0x81, 4) == 1) { // inc high-to-low
if (!newV && oldV) {
interna.incTMR0();
}
} else { // inc low-to-high
if (newV && !oldV) {
interna.incTMR0();
}
}
}
updateGui();
}
/** Updates the GUI-Elements */
public void updateGui() {
gui.getTextPane("Wreg").setText(Integer.toHexString(interna.getRegW()));
gui.getTextPane("FSRreg").setText(Integer.toHexString(interna.getValueAt(0x4)));
gui.getTextPane("TMR0").setText(Integer.toHexString(interna.getValueAtNoBank(0x1)));
gui.getTextPane("PCLreg").setText(Integer.toHexString(interna.getValueAt(0x2)));
gui.getTextPane("RP0").setText(String.valueOf(interna.getBitAt(0x3, 5)));
gui.getTextPane("TO").setText(String.valueOf(interna.getBitAt(0x3, 4)));
gui.getTextPane("PD").setText(String.valueOf(interna.getBitAt(0x3, 3)));
gui.getTextPane("Z").setText(String.valueOf(interna.getBitAt(0x3, 2)));
gui.getTextPane("DC").setText(String.valueOf(interna.getBitAt(0x3, 1)));
gui.getTextPane("C").setText(String.valueOf(interna.getBitAt(0x3, 0)));
// PortA
for (int i = 0; i < gui.getPortA().getColumnCount(); i++) {
gui.getPortA().setValueAt(Integer.valueOf(interna.getBitAtNoBank(0x5, i)), 0, 7 - i);
gui.getPortA().setValueAt(interna.getTris(0x85, i), 1, 7 - i);
}
// PortB
for (int i = 0; i < gui.getPortB().getColumnCount(); i++) {
gui.getPortB().setValueAt(Integer.valueOf(interna.getBitAtNoBank(0x6, i)), 0, 7 - i);
gui.getPortB().setValueAt(interna.getTris(0x86, i), 1, 7 - i);
}
// INTCON
for (int i = 0; i < gui.getIntcon().getColumnCount(); i++) {
gui.getIntcon().setValueAt(Integer.valueOf(interna.getBitAt(0x0B, i)), 0, 7 - i);
}
// Register
int rowReg = 0x0;
for (int i = 0; i < gui.getRegister().getRowCount(); i++) {
for (int j = 0; j <= 7; j++) {
gui.getRegister()
.setValueAt(Integer.toHexString(interna.getValueAtNoBank(rowReg + j)), i, j + 1);
}
rowReg += 0x8;
}
}
public void setPC(int a) {
interna.setValueAt(a, 0x2);
}
public int getPC() {
return interna.getValueAt(0x2);
}
/**
* A Bit of Port B is Clicked Checks Interrupt Bits and impulse edge
*
* @param column Bit of Port B
*/
private void portBClicked(int column) {
int bit = interna.getBitAtNoBank(0x6, 7 - column); // toggle bits
if (bit == 0) interna.setBitAt(0x6, 7 - column);
else interna.clearBitAt(0x6, 7 - column);
boolean oldB = (bit != 0);
boolean newB = (interna.getBitAtNoBank(0x6, 4) != 0);
if (interna.getBitAt(0xB, 7) == 1) { // GIE Enabled
if (interna.getBitAt(0xB, 3) == 1 && column <= 3) { // rb port changed
interna.setBitAt(0xB, 0);
} else if (interna.getBitAt(0xB, 4) == 1 && column == 7) { // rb0 interrupt
if (interna.getBitAt(0x81, 6) == 1) { // check interrupt-edge
if (newB && !oldB) {
interna.setBitAt(0xB, 1);
}
} else {
if (!newB && oldB) {
interna.setBitAt(0xB, 1);
}
}
}
}
updateGui();
}