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Interrupts

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This commit is contained in:
Paul Martin
2024-06-02 16:37:53 +02:00
parent c49a073cfd
commit 2294f81766
10 changed files with 83 additions and 54 deletions
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52
src/main/java/fabrik/simulator/pic16f84/Interrupts.java Normal file
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package fabrik.simulator.pic16f84;
public class Interrupts {
private static final int INTCON = 0xB;
private static final int T0IF = 0x2;
private static final int ISR = 0x4;
private static final int GIE = 0x7;
private static final int T0IE = 0x5;
private static final int RBIE = 0x3;
private static final int RBIF = 0x0;
private static final int INTEDG = 0x6;
private static final int OPTION = 0x81;
private static final int INTE = 0x4;
private static final int INTF = 0x1;
public static void triggerTMR0() {
triggerInterrupt(T0IF, T0IE);
}
private static void triggerInterrupt(int flag, int enableFlag) {
DataRegister.setBit(INTCON, flag);
enableFlag = DataRegister.getDirectBit(INTCON, enableFlag);
int globalFlag = DataRegister.getDirectBit(INTCON, GIE);
if (globalFlag == 1 && enableFlag == 1) {
DataRegister.clearBit(INTCON, GIE);
Commands.CALL(ISR, false);
Controller_Frontend.stopRunFromBackend("Interrupt", false);
}
}
public static void triggerRBInterrupt(int oldValue, int newValue) {
if (newValue != oldValue){
triggerInterrupt(RBIF, RBIE);
}
}
public static void triggerRB0Interrupt(int oldValue, int newValue){
if (newValue != oldValue){
int intedg = DataRegister.getDirectBit(OPTION, INTEDG);
if (intedg == 1) {
if (oldValue == 0 && newValue == 1)
triggerInterrupt(INTF, INTE);
} else {
if (oldValue == 1 && newValue == 0)
triggerInterrupt(INTF, INTE);
}
}
}
}