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3 Commits

Author SHA1 Message Date
Darkress
6772f448ba removed comment 2023-06-17 23:34:20 +02:00
Darkress
9319a14d88 Fixed reset Program on WatchDog Timeout 2023-06-17 23:25:54 +02:00
Darkress
9d7d1ce5b1 Basic read-only cli 2023-06-17 23:25:54 +02:00
9 changed files with 12 additions and 71 deletions

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@@ -2,18 +2,20 @@ package de.darkress.pic16f84sim;
import de.darkress.pic16f84sim.cli.Cli; import de.darkress.pic16f84sim.cli.Cli;
import de.darkress.pic16f84sim.commands.Command; import de.darkress.pic16f84sim.commands.Command;
import de.darkress.pic16f84sim.decoder.CommandDecoder;
import de.darkress.pic16f84sim.microcontroller.Cycles;
import de.darkress.pic16f84sim.microcontroller.Memory; import de.darkress.pic16f84sim.microcontroller.Memory;
import de.darkress.pic16f84sim.microcontroller.ProgramCounter; import de.darkress.pic16f84sim.microcontroller.ProgramCounter;
import de.darkress.pic16f84sim.microcontroller.Watchdog; import de.darkress.pic16f84sim.microcontroller.Watchdog;
import de.darkress.pic16f84sim.parser.Parser; import de.darkress.pic16f84sim.parser.Parser;
import java.util.Scanner; import java.util.concurrent.TimeUnit;
class Main class Main
{ {
public static void main(String[] args) { public static void main(String[] args) throws InterruptedException {
Command[] program = Parser.parser("de/darkress/pic16f84sim/TestPrograms/TPicSim8.LST"); Command[] program = Parser.parser("de/darkress/pic16f84sim/TestPrograms/TPicSim11.LST");
Memory.initMemory(); Memory.initMemory();
@@ -26,15 +28,7 @@ class Main
String[] instructionName = program[ProgramCounter.getPc()].getClass().toString().split("\\."); String[] instructionName = program[ProgramCounter.getPc()].getClass().toString().split("\\.");
System.out.println("Command: " + instructionName[instructionName.length -1]); System.out.println("Command: " + instructionName[instructionName.length -1]);
program[ProgramCounter.getPc()].execute(); program[ProgramCounter.getPc()].execute();
Cli.showDefaultRegisters(); Cli.showRegisters();
askForInput();
} }
} }
private static void askForInput() {
System.out.println("Wanna give some more input?:");
Scanner scanner = new Scanner(System.in);
String userInput = scanner.nextLine();
if(!(userInput.equals(""))) askForInput();
}
} }

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@@ -7,7 +7,7 @@ import de.darkress.pic16f84sim.microcontroller.Timer;
public class Cli public class Cli
{ {
public static void showDefaultRegisters() { public static void showRegisters() {
printf(Memory.workingRegister, "W-Reg", true); printf(Memory.workingRegister, "W-Reg", true);
printf(Cycles.getCycles(), "Cycles", false); printf(Cycles.getCycles(), "Cycles", false);
System.out.printf("%n"); System.out.printf("%n");
@@ -23,12 +23,6 @@ public class Cli
printf(Memory.getPCLATH(), "PCLATH", true); printf(Memory.getPCLATH(), "PCLATH", true);
printf(Memory.getPCL(), "PCL", true); printf(Memory.getPCL(), "PCL", true);
System.out.printf("%n"); System.out.printf("%n");
System.out.printf("%s:\t\t%s\t", "PortA", Integer.toBinaryString(Memory.getPortA()));
System.out.printf("%s:\t\t%s\t", "PortB", Integer.toBinaryString(Memory.getPortB()));
System.out.printf("%n");
printf(Memory.getRegister(0x0B), "IntCon", true);
System.out.printf("%n");
} }
private static void printf(int value, String description, boolean hex) { private static void printf(int value, String description, boolean hex) {

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@@ -1,18 +0,0 @@
package de.darkress.pic16f84sim.commands;
import de.darkress.pic16f84sim.microcontroller.Cycles;
import de.darkress.pic16f84sim.microcontroller.Memory;
import de.darkress.pic16f84sim.microcontroller.ProgramCounter;
import de.darkress.pic16f84sim.microcontroller.Stack;
public class Retfie extends LiteralCommandUtils implements Command
{
@Override
public void execute()
{
Cycles.incCycles();
Memory.setRegister(0x0B, Memory.getRegister(0x0B) | 0x80); //Set GIE
ProgramCounter.setPcFromStack(Stack.pop() + 1);
Cycles.incCycles(); // Simulate 2-Cycle Instruction
}
}

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@@ -102,7 +102,7 @@ public class CommandDecoder
if (input == 0x0009) if (input == 0x0009)
{ {
return new Retfie(); //retfie();
} }
if (input == 0x0008) if (input == 0x0008)

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@@ -1,13 +0,0 @@
package de.darkress.pic16f84sim.microcontroller;
public class Interrupt
{
private static boolean globalInterruptEnabled() {
return (Memory.getRegister(0x0B) & 0x80) == 0x80; // Check GIE
}
public static boolean checkTimerInterruptConditions() {
boolean timerInterruptEnabled = (Memory.getRegister(0x0B) & 0x20) == 0x20;
return globalInterruptEnabled() && timerInterruptEnabled;
}
}

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@@ -143,13 +143,6 @@ public class Memory
return memory[0x81]; return memory[0x81];
} }
public static int getPortB() {
return memory[0x06];
}
public static int getPortA() {
return memory[0x05] & 0x1F;
}
public static int getTimer() public static int getTimer()
{ {
return memory[0x01]; return memory[0x01];

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@@ -37,11 +37,8 @@ public class ProgramCounter
Memory.setPCL(pc & 0x00FF); Memory.setPCL(pc & 0x00FF);
} }
public static void setProgramCounter(int value) { public static void resetProgramCounter() {
if(value <= 0xFF && value >= 0) pc = 0;
{ Memory.setPCL(0x0);
pc = value;
Memory.setPCL(pc);
}
} }
} }

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@@ -46,12 +46,6 @@ public class Timer
if(timerRegister == 0) //check for timer Overflow --> interrupt if(timerRegister == 0) //check for timer Overflow --> interrupt
{ {
System.out.println("Timer Overflow"); System.out.println("Timer Overflow");
Memory.setRegister(0x0B, Memory.getRegister(0x0B) | 0x04); //set T0IF
if(Interrupt.checkTimerInterruptConditions())
{
Stack.push(ProgramCounter.getPc());
ProgramCounter.setProgramCounter(0x04); // Interrupt Vector
}
} }
Memory.setTimer(timerRegister); Memory.setTimer(timerRegister);
} }

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@@ -30,7 +30,7 @@ public class Watchdog
public static void resetProgram() public static void resetProgram()
{ {
Memory.setRegister(0x03, Memory.getRegister(0x03) | 0x10); //Set !T0 in StatusReg Memory.setRegister(0x03, Memory.getRegister(0x03) | 0x10); //Set !T0 in StatusReg
ProgramCounter.setProgramCounter(0); ProgramCounter.resetProgramCounter();
watchdogTimer = 18000; watchdogTimer = 18000;
} }