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retlwInstr
| Author | SHA1 | Date | |
|---|---|---|---|
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f0f6179059 |
@@ -1,40 +1,25 @@
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package de.darkress.pic16f84sim;
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import de.darkress.pic16f84sim.cli.Cli;
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import de.darkress.pic16f84sim.commands.Command;
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import de.darkress.pic16f84sim.decoder.CommandDecoder;
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import de.darkress.pic16f84sim.microcontroller.Memory;
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import de.darkress.pic16f84sim.microcontroller.ProgramCounter;
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import de.darkress.pic16f84sim.microcontroller.Watchdog;
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import de.darkress.pic16f84sim.parser.Parser;
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import java.util.Scanner;
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import java.util.ArrayList;
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class Main
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{
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public static void main(String[] args) {
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Command[] program = Parser.parser("de/darkress/pic16f84sim/TestPrograms/TPicSim8.LST");
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Memory.initMemory();
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while(ProgramCounter.getPc() < 1024)
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ArrayList<Command> program = new ArrayList<>();
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int input1 = 0x27FF;
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program.add(CommandDecoder.decode(0x3011));
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program.add(CommandDecoder.decode(0x2003));
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program.add(CommandDecoder.decode(0x3022));
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program.add(CommandDecoder.decode(0x0008));
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while(true)
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{
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if((Memory.getRegister(0x03) & 0x10) == 0x00) { // Checking WDT in Status Register
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System.out.println("Resetting device");
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Watchdog.resetProgram();
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}
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String[] instructionName = program[ProgramCounter.getPc()].getClass().toString().split("\\.");
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System.out.println("Command: " + instructionName[instructionName.length -1]);
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program[ProgramCounter.getPc()].execute();
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Cli.showDefaultRegisters();
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askForInput();
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program.get(ProgramCounter.getPc()).execute();
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}
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}
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private static void askForInput() {
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System.out.println("Wanna give some more input?:");
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Scanner scanner = new Scanner(System.in);
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String userInput = scanner.nextLine();
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if(!(userInput.equals(""))) askForInput();
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}
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}
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@@ -1,42 +0,0 @@
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package de.darkress.pic16f84sim.cli;
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import de.darkress.pic16f84sim.microcontroller.Cycles;
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import de.darkress.pic16f84sim.microcontroller.Memory;
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import de.darkress.pic16f84sim.microcontroller.Stack;
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import de.darkress.pic16f84sim.microcontroller.Timer;
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public class Cli
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{
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public static void showDefaultRegisters() {
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printf(Memory.workingRegister, "W-Reg", true);
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printf(Cycles.getCycles(), "Cycles", false);
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System.out.printf("%n");
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printf(Memory.getRegister(0x03), "Status", true);
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printf(Memory.getOption(), "Option", true);
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System.out.printf("%n");
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printf(Memory.getFSR(), "FSR", true);
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printf(Stack.getStackPointer(), "Stackpointer", true);
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System.out.printf("%n");
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printf(Memory.getTimer(), "Timer", true);
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printf(Timer.getCyclesToTimerIncrease(), "Prescaler", true);
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System.out.printf("%n");
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printf(Memory.getPCLATH(), "PCLATH", true);
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printf(Memory.getPCL(), "PCL", true);
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System.out.printf("%n");
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System.out.printf("%s:\t\t%s\t", "PortA", Integer.toBinaryString(Memory.getPortA()));
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System.out.printf("%s:\t\t%s\t", "PortB", Integer.toBinaryString(Memory.getPortB()));
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System.out.printf("%n");
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printf(Memory.getRegister(0x0B), "IntCon", true);
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System.out.printf("%n");
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}
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private static void printf(int value, String description, boolean hex) {
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if(hex) {
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System.out.printf("%s:\t\t%s\t", description, Integer.toHexString(value));
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} else {
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System.out.printf("%s:\t\t%d\t", description, value);
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}
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}
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}
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@@ -1,10 +1,9 @@
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package de.darkress.pic16f84sim.commands;
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import de.darkress.pic16f84sim.microcontroller.Cycles;
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import de.darkress.pic16f84sim.microcontroller.Memory;
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import de.darkress.pic16f84sim.microcontroller.ProgramCounter;
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public class Addlw extends LiteralCommandUtils implements Command
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public class Addlw extends CommandUtils implements Command
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{
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private final int literal;
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@@ -16,8 +15,6 @@ public class Addlw extends LiteralCommandUtils implements Command
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@Override
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public void execute()
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{
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ProgramCounter.incPC();
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Cycles.incCycles();
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int result = literal + Memory.workingRegister;
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checkZeroBit(result);
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@@ -25,5 +22,6 @@ public class Addlw extends LiteralCommandUtils implements Command
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checkDigitCarryBit(literal);
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Memory.workingRegister = result % 256;
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ProgramCounter.incPC();
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}
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}
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@@ -1,31 +0,0 @@
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package de.darkress.pic16f84sim.commands;
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import de.darkress.pic16f84sim.microcontroller.Cycles;
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import de.darkress.pic16f84sim.microcontroller.Memory;
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import de.darkress.pic16f84sim.microcontroller.ProgramCounter;
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public class Addwf extends FileRegisterCommandUtils implements Command
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{
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private final int address;
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private final boolean destinationBit;
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public Addwf(int input)
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{
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address = input & 0x007F;
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destinationBit = checkDestinationBit(input);
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}
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@Override
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public void execute()
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{
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ProgramCounter.incPC();
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Cycles.incCycles();
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int result = Memory.getRegister(address) + Memory.workingRegister;
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checkZeroBit(result);
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checkCarryBit(result);
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checkDigitCarryBit(address);
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writeToDestination(destinationBit, address, result);
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}
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}
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@@ -1,10 +1,8 @@
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package de.darkress.pic16f84sim.commands;
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import de.darkress.pic16f84sim.microcontroller.Cycles;
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import de.darkress.pic16f84sim.microcontroller.Memory;
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import de.darkress.pic16f84sim.microcontroller.ProgramCounter;
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public class Andlw extends LiteralCommandUtils implements Command
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public class Andlw extends CommandUtils implements Command
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{
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private final int literal;
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@@ -15,8 +13,6 @@ public class Andlw extends LiteralCommandUtils implements Command
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@Override
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public void execute()
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{
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ProgramCounter.incPC();
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Cycles.incCycles();
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int result = literal & Memory.workingRegister;
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checkZeroBit(result);
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@@ -1,29 +0,0 @@
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package de.darkress.pic16f84sim.commands;
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import de.darkress.pic16f84sim.microcontroller.Cycles;
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import de.darkress.pic16f84sim.microcontroller.Memory;
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import de.darkress.pic16f84sim.microcontroller.ProgramCounter;
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public class Andwf extends FileRegisterCommandUtils implements Command
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{
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private final int address;
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private final boolean destinationBit;
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public Andwf(int input)
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{
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address = input & 0x007F;
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destinationBit = checkDestinationBit(input);
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}
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@Override
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public void execute()
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{
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ProgramCounter.incPC();
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Cycles.incCycles();
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int result = Memory.getRegister(address) & Memory.workingRegister;
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checkZeroBit(result);
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writeToDestination(destinationBit, address, result);
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}
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}
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@@ -1,28 +0,0 @@
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package de.darkress.pic16f84sim.commands;
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import de.darkress.pic16f84sim.microcontroller.Cycles;
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import de.darkress.pic16f84sim.microcontroller.Memory;
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import de.darkress.pic16f84sim.microcontroller.ProgramCounter;
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public class Bcf extends BitOrientedCommandUtils implements Command
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{
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private final int address;
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private int bitPlacement;
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public Bcf(int input)
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{
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address = input & 0x007F;
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bitPlacement = checkBitPlacement(input);
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}
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@Override
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public void execute()
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{
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ProgramCounter.incPC();
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Cycles.incCycles();
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int result = Memory.getRegister(address);
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result &= ~(1 << bitPlacement); //Mask n-th bit with 0
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Memory.setRegister(address, result);
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}
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}
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@@ -1,11 +0,0 @@
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package de.darkress.pic16f84sim.commands;
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import de.darkress.pic16f84sim.microcontroller.Memory;
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public class BitOrientedCommandUtils
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{
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protected int checkBitPlacement(int input)
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{
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return ((input & 0x0380) >>7);
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}
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}
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@@ -1,28 +0,0 @@
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package de.darkress.pic16f84sim.commands;
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import de.darkress.pic16f84sim.microcontroller.Cycles;
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import de.darkress.pic16f84sim.microcontroller.Memory;
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import de.darkress.pic16f84sim.microcontroller.ProgramCounter;
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public class Bsf extends BitOrientedCommandUtils implements Command
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{
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private final int address;
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private int bitPlacement;
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public Bsf(int input)
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{
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address = input & 0x007F;
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bitPlacement = checkBitPlacement(input);
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}
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@Override
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public void execute()
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{
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ProgramCounter.incPC();
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Cycles.incCycles();
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int result = Memory.getRegister(address);
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result |= (1 << bitPlacement);
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Memory.setRegister(address, result);
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}
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}
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@@ -1,31 +0,0 @@
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package de.darkress.pic16f84sim.commands;
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import de.darkress.pic16f84sim.microcontroller.Cycles;
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import de.darkress.pic16f84sim.microcontroller.Memory;
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import de.darkress.pic16f84sim.microcontroller.ProgramCounter;
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public class Btfsc extends BitOrientedCommandUtils implements Command
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{
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private final int address;
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private int bitPlacement;
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public Btfsc(int input)
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{
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address = input & 0x007F;
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bitPlacement = checkBitPlacement(input);
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}
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@Override
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public void execute()
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{
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ProgramCounter.incPC();
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Cycles.incCycles();
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int result = Memory.getRegister(address);
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if((result & (1 << bitPlacement)) == 0) //Test if bit is clear
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{
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Nop nop = new Nop();
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nop.execute();
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}
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}
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}
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@@ -1,31 +0,0 @@
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package de.darkress.pic16f84sim.commands;
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import de.darkress.pic16f84sim.microcontroller.Cycles;
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import de.darkress.pic16f84sim.microcontroller.Memory;
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import de.darkress.pic16f84sim.microcontroller.ProgramCounter;
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public class Btfss extends BitOrientedCommandUtils implements Command
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{
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private final int address;
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private int bitPlacement;
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public Btfss(int input)
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{
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address = input & 0x007F;
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bitPlacement = checkBitPlacement(input);
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}
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@Override
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public void execute()
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{
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ProgramCounter.incPC();
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Cycles.incCycles();
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int result = Memory.getRegister(address);
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if((result & (1 << bitPlacement)) > 0) //Test if bit is set
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{
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Nop nop = new Nop();
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nop.execute();
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}
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}
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}
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@@ -1,10 +1,9 @@
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package de.darkress.pic16f84sim.commands;
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import de.darkress.pic16f84sim.microcontroller.Cycles;
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import de.darkress.pic16f84sim.microcontroller.ProgramCounter;
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import de.darkress.pic16f84sim.microcontroller.Stack;
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public class Call extends LiteralCommandUtils implements Command
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public class Call extends CommandUtils implements Command
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{
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private final int literal;
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@@ -16,9 +15,7 @@ public class Call extends LiteralCommandUtils implements Command
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@Override
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public void execute()
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{
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Cycles.incCycles();
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Stack.push(ProgramCounter.getPc() + 1);
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ProgramCounter.setPcFrom11BitLiteral(literal);
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Cycles.incCycles(); //Simulate nop and 2-Cycle instruction
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}
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}
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@@ -1,28 +0,0 @@
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package de.darkress.pic16f84sim.commands;
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import de.darkress.pic16f84sim.microcontroller.Cycles;
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import de.darkress.pic16f84sim.microcontroller.ProgramCounter;
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public class Clrf extends FileRegisterCommandUtils implements Command
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{
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private final int address;
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private final boolean destinationBit;
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public Clrf(int input)
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{
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address = input & 0x007F;
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destinationBit = true;
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}
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@Override
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public void execute()
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{
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ProgramCounter.incPC();
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Cycles.incCycles();
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final int result = 0;
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checkZeroBit(result);
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writeToDestination(destinationBit, address, result);
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}
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}
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@@ -1,20 +0,0 @@
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package de.darkress.pic16f84sim.commands;
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import de.darkress.pic16f84sim.microcontroller.Cycles;
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import de.darkress.pic16f84sim.microcontroller.Memory;
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import de.darkress.pic16f84sim.microcontroller.ProgramCounter;
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public class Clrw extends FileRegisterCommandUtils implements Command
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{
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@Override
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public void execute()
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{
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ProgramCounter.incPC();
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Cycles.incCycles();
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final int result = 0;
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checkZeroBit(result);
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Memory.workingRegister = result;
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}
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}
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@@ -1,24 +0,0 @@
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package de.darkress.pic16f84sim.commands;
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import de.darkress.pic16f84sim.microcontroller.*;
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public class Clrwdt extends LiteralCommandUtils implements Command
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{
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public Clrwdt()
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{
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}
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@Override
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public void execute()
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{
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ProgramCounter.incPC();
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Cycles.incCycles();
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Memory.setRegister(0x03, Memory.getRegister(0x03) | 0x18);
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if(Timer.getPrescalerAssignment()) {
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Timer.resetTimeToTimerIncrease();
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Watchdog.resetWatchdogTimer();
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}
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}
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||||
}
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@@ -1,29 +0,0 @@
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package de.darkress.pic16f84sim.commands;
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import de.darkress.pic16f84sim.microcontroller.Cycles;
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import de.darkress.pic16f84sim.microcontroller.Memory;
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import de.darkress.pic16f84sim.microcontroller.ProgramCounter;
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public class Comf extends FileRegisterCommandUtils implements Command
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{
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private final int address;
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private final boolean destinationBit;
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public Comf(int input)
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{
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address = input & 0x007F;
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destinationBit = checkDestinationBit(input);
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}
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||||
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||||
@Override
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||||
public void execute()
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||||
{
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||||
ProgramCounter.incPC();
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||||
Cycles.incCycles();
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int result = 255 - Memory.getRegister(address); // Get inverse of 8Bit value
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checkZeroBit(result);
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writeToDestination(destinationBit, address, result);
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}
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||||
}
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@@ -2,7 +2,7 @@ package de.darkress.pic16f84sim.commands;
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import de.darkress.pic16f84sim.microcontroller.Memory;
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|
||||
public class LiteralCommandUtils
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||||
public class CommandUtils
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{
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protected void checkZeroBit(int result)
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{
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||||
@@ -1,29 +0,0 @@
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package de.darkress.pic16f84sim.commands;
|
||||
|
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import de.darkress.pic16f84sim.microcontroller.Cycles;
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import de.darkress.pic16f84sim.microcontroller.Memory;
|
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import de.darkress.pic16f84sim.microcontroller.ProgramCounter;
|
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|
||||
public class Decf extends FileRegisterCommandUtils implements Command
|
||||
{
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||||
private final int address;
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private final boolean destinationBit;
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||||
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||||
public Decf(int input)
|
||||
{
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||||
address = input & 0x007F;
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destinationBit = checkDestinationBit(input);
|
||||
}
|
||||
|
||||
@Override
|
||||
public void execute()
|
||||
{
|
||||
ProgramCounter.incPC();
|
||||
Cycles.incCycles();
|
||||
int result = Memory.getRegister(address) + 255; // Allow underflow
|
||||
|
||||
checkZeroBit(result);
|
||||
|
||||
writeToDestination(destinationBit, address, result % 256); // Catch underflow
|
||||
}
|
||||
}
|
||||
@@ -1,35 +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;
|
||||
|
||||
public class Decfsz extends FileRegisterCommandUtils implements Command
|
||||
{
|
||||
private final int address;
|
||||
private final boolean destinationBit;
|
||||
|
||||
public Decfsz(int input)
|
||||
{
|
||||
address = input & 0x007F;
|
||||
destinationBit = checkDestinationBit(input);
|
||||
}
|
||||
|
||||
@Override
|
||||
public void execute()
|
||||
{
|
||||
ProgramCounter.incPC();
|
||||
Cycles.incCycles();
|
||||
int result = Memory.getRegister(address) + 255; // Allow underflow
|
||||
|
||||
checkZeroBit(result);
|
||||
|
||||
writeToDestination(destinationBit, address, result % 256); // Catch underflow
|
||||
|
||||
if((result % 256) == 0)
|
||||
{
|
||||
Nop nop = new Nop();
|
||||
nop.execute();
|
||||
}
|
||||
}
|
||||
}
|
||||
@@ -1,51 +0,0 @@
|
||||
package de.darkress.pic16f84sim.commands;
|
||||
|
||||
import de.darkress.pic16f84sim.microcontroller.Memory;
|
||||
|
||||
public class FileRegisterCommandUtils
|
||||
{
|
||||
protected void checkZeroBit(int result)
|
||||
{
|
||||
if((result % 256) == 0){
|
||||
Memory.setZeroBit();
|
||||
} else{
|
||||
Memory.clearZeroBit();
|
||||
}
|
||||
}
|
||||
|
||||
protected void checkCarryBit(int result)
|
||||
{
|
||||
if(result > 255){
|
||||
Memory.setCarryBit();
|
||||
} else{
|
||||
Memory.clearCarryBit();
|
||||
}
|
||||
}
|
||||
|
||||
protected void checkDigitCarryBit(int address)
|
||||
{
|
||||
int literal = Memory.getRegister(address);
|
||||
if(((Memory.workingRegister & 0x0F) + (literal & 0x0F)) > 15){
|
||||
Memory.setDigitCarryBit();
|
||||
} else{
|
||||
Memory.clearDigitCarryBit();
|
||||
}
|
||||
}
|
||||
|
||||
protected void writeToDestination(boolean destinationBit, int fileAddress, int result)
|
||||
{
|
||||
if(destinationBit)
|
||||
{
|
||||
//Store in FileRegister
|
||||
Memory.setRegister(fileAddress, result);
|
||||
} else {
|
||||
//Store in WRegister
|
||||
Memory.workingRegister = result;
|
||||
}
|
||||
}
|
||||
|
||||
protected boolean checkDestinationBit(int input)
|
||||
{
|
||||
return (input & 0x0080) == 0x0080;
|
||||
}
|
||||
}
|
||||
@@ -1,9 +1,8 @@
|
||||
package de.darkress.pic16f84sim.commands;
|
||||
|
||||
import de.darkress.pic16f84sim.microcontroller.Cycles;
|
||||
import de.darkress.pic16f84sim.microcontroller.ProgramCounter;
|
||||
|
||||
public class Goto extends LiteralCommandUtils implements Command
|
||||
public class Goto extends CommandUtils implements Command
|
||||
{
|
||||
private final int literal;
|
||||
|
||||
@@ -15,8 +14,6 @@ public class Goto extends LiteralCommandUtils implements Command
|
||||
@Override
|
||||
public void execute()
|
||||
{
|
||||
Cycles.incCycles();
|
||||
ProgramCounter.setPcFrom11BitLiteral(literal);
|
||||
Cycles.incCycles();
|
||||
}
|
||||
}
|
||||
|
||||
@@ -1,29 +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;
|
||||
|
||||
public class Incf extends FileRegisterCommandUtils implements Command
|
||||
{
|
||||
private final int address;
|
||||
private final boolean destinationBit;
|
||||
|
||||
public Incf(int input)
|
||||
{
|
||||
address = input & 0x007F;
|
||||
destinationBit = checkDestinationBit(input);
|
||||
}
|
||||
|
||||
@Override
|
||||
public void execute()
|
||||
{
|
||||
ProgramCounter.incPC();
|
||||
Cycles.incCycles();
|
||||
int result = Memory.getRegister(address) + 1; // Allow underflow
|
||||
|
||||
checkZeroBit(result);
|
||||
|
||||
writeToDestination(destinationBit, address, result % 256); // Catch underflow
|
||||
}
|
||||
}
|
||||
@@ -1,35 +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;
|
||||
|
||||
public class Incfsz extends FileRegisterCommandUtils implements Command
|
||||
{
|
||||
private final int address;
|
||||
private final boolean destinationBit;
|
||||
|
||||
public Incfsz(int input)
|
||||
{
|
||||
address = input & 0x007F;
|
||||
destinationBit = checkDestinationBit(input);
|
||||
}
|
||||
|
||||
@Override
|
||||
public void execute()
|
||||
{
|
||||
ProgramCounter.incPC();
|
||||
Cycles.incCycles();
|
||||
int result = Memory.getRegister(address) + 1;
|
||||
|
||||
checkZeroBit(result);
|
||||
|
||||
writeToDestination(destinationBit, address, result % 256);
|
||||
|
||||
if((result % 256) == 0)
|
||||
{
|
||||
Nop nop = new Nop();
|
||||
nop.execute();
|
||||
}
|
||||
}
|
||||
}
|
||||
@@ -1,10 +1,8 @@
|
||||
package de.darkress.pic16f84sim.commands;
|
||||
|
||||
import de.darkress.pic16f84sim.microcontroller.Cycles;
|
||||
import de.darkress.pic16f84sim.microcontroller.Memory;
|
||||
import de.darkress.pic16f84sim.microcontroller.ProgramCounter;
|
||||
|
||||
public class Iorlw extends LiteralCommandUtils implements Command
|
||||
public class Iorlw extends CommandUtils implements Command
|
||||
{
|
||||
private final int literal;
|
||||
|
||||
@@ -15,8 +13,6 @@ public class Iorlw extends LiteralCommandUtils implements Command
|
||||
@Override
|
||||
public void execute()
|
||||
{
|
||||
ProgramCounter.incPC();
|
||||
Cycles.incCycles();
|
||||
int result = literal | Memory.workingRegister;
|
||||
|
||||
checkZeroBit(result);
|
||||
|
||||
@@ -1,29 +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;
|
||||
|
||||
public class Iorwf extends FileRegisterCommandUtils implements Command
|
||||
{
|
||||
private final int address;
|
||||
private final boolean destinationBit;
|
||||
|
||||
public Iorwf(int input)
|
||||
{
|
||||
address = input & 0x007F;
|
||||
destinationBit = checkDestinationBit(input);
|
||||
}
|
||||
|
||||
@Override
|
||||
public void execute()
|
||||
{
|
||||
ProgramCounter.incPC();
|
||||
Cycles.incCycles();
|
||||
int result = Memory.getRegister(address) | Memory.workingRegister;
|
||||
|
||||
checkZeroBit(result);
|
||||
|
||||
writeToDestination(destinationBit, address, result);
|
||||
}
|
||||
}
|
||||
@@ -1,29 +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;
|
||||
|
||||
public class Movf extends FileRegisterCommandUtils implements Command
|
||||
{
|
||||
private final int address;
|
||||
private final boolean destinationBit;
|
||||
|
||||
public Movf(int input)
|
||||
{
|
||||
address = input & 0x007F;
|
||||
destinationBit = checkDestinationBit(input);
|
||||
}
|
||||
|
||||
@Override
|
||||
public void execute()
|
||||
{
|
||||
ProgramCounter.incPC();
|
||||
Cycles.incCycles();
|
||||
int result = Memory.getRegister(address);
|
||||
|
||||
checkZeroBit(result);
|
||||
|
||||
writeToDestination(destinationBit, address, result);
|
||||
}
|
||||
}
|
||||
@@ -1,10 +1,8 @@
|
||||
package de.darkress.pic16f84sim.commands;
|
||||
|
||||
import de.darkress.pic16f84sim.microcontroller.Cycles;
|
||||
import de.darkress.pic16f84sim.microcontroller.Memory;
|
||||
import de.darkress.pic16f84sim.microcontroller.ProgramCounter;
|
||||
|
||||
public class Movlw extends LiteralCommandUtils implements Command
|
||||
public class Movlw extends CommandUtils implements Command
|
||||
{
|
||||
private final int literal;
|
||||
|
||||
@@ -16,8 +14,6 @@ public class Movlw extends LiteralCommandUtils implements Command
|
||||
@Override
|
||||
public void execute()
|
||||
{
|
||||
ProgramCounter.incPC();
|
||||
Cycles.incCycles();
|
||||
Memory.workingRegister = literal;
|
||||
}
|
||||
}
|
||||
|
||||
@@ -1,27 +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;
|
||||
|
||||
public class Movwf extends FileRegisterCommandUtils implements Command
|
||||
{
|
||||
private final int address;
|
||||
private final boolean destinationBit;
|
||||
|
||||
public Movwf(int input)
|
||||
{
|
||||
address = input & 0x007F;
|
||||
destinationBit = true;
|
||||
}
|
||||
|
||||
@Override
|
||||
public void execute()
|
||||
{
|
||||
ProgramCounter.incPC();
|
||||
Cycles.incCycles();
|
||||
int result = Memory.workingRegister;
|
||||
|
||||
writeToDestination(destinationBit, address, result);
|
||||
}
|
||||
}
|
||||
@@ -1,16 +0,0 @@
|
||||
package de.darkress.pic16f84sim.commands;
|
||||
|
||||
import de.darkress.pic16f84sim.microcontroller.Cycles;
|
||||
import de.darkress.pic16f84sim.microcontroller.ProgramCounter;
|
||||
|
||||
public class Nop extends LiteralCommandUtils implements Command
|
||||
{
|
||||
|
||||
@Override
|
||||
public void execute()
|
||||
{
|
||||
// Do nothing, just increment the PC
|
||||
ProgramCounter.incPC();
|
||||
Cycles.incCycles();
|
||||
}
|
||||
}
|
||||
@@ -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
|
||||
}
|
||||
}
|
||||
@@ -1,11 +1,10 @@
|
||||
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 Retlw extends LiteralCommandUtils implements Command
|
||||
public class Retlw extends CommandUtils implements Command
|
||||
{
|
||||
private final int literal;
|
||||
|
||||
@@ -17,9 +16,9 @@ public class Retlw extends LiteralCommandUtils implements Command
|
||||
@Override
|
||||
public void execute()
|
||||
{
|
||||
Cycles.incCycles();
|
||||
Memory.workingRegister = literal;
|
||||
ProgramCounter.setPcFromStack(Stack.pop());
|
||||
Cycles.incCycles(); // Simulate 2-Cycle Instruction
|
||||
ProgramCounter.setPcFrom11BitLiteral(Stack.pop());
|
||||
//TODO: This may need some rework since it does not really load all 13 Bit into the PC. Only 8 Bit are
|
||||
// effectively set
|
||||
}
|
||||
}
|
||||
|
||||
@@ -1,16 +1,15 @@
|
||||
package de.darkress.pic16f84sim.commands;
|
||||
|
||||
import de.darkress.pic16f84sim.microcontroller.Cycles;
|
||||
import de.darkress.pic16f84sim.microcontroller.ProgramCounter;
|
||||
import de.darkress.pic16f84sim.microcontroller.Stack;
|
||||
|
||||
public class Return extends LiteralCommandUtils implements Command
|
||||
public class Return extends CommandUtils implements Command
|
||||
{
|
||||
@Override
|
||||
public void execute()
|
||||
{
|
||||
Cycles.incCycles();
|
||||
ProgramCounter.setPcFromStack(Stack.pop());
|
||||
Cycles.incCycles(); // Simulate 2-Cycle Instruction
|
||||
ProgramCounter.setPcFrom11BitLiteral(Stack.pop());
|
||||
//TODO: This may need some rework since it does not really load all 13 Bit into the PC. Only 8 Bit are
|
||||
// effectively set
|
||||
}
|
||||
}
|
||||
|
||||
@@ -1,37 +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;
|
||||
|
||||
public class Rlf extends FileRegisterCommandUtils implements Command
|
||||
{
|
||||
private final int address;
|
||||
private final boolean destinationBit;
|
||||
|
||||
public Rlf(int input)
|
||||
{
|
||||
address = input & 0x007F;
|
||||
destinationBit = checkDestinationBit(input);
|
||||
}
|
||||
|
||||
@Override
|
||||
public void execute()
|
||||
{
|
||||
ProgramCounter.incPC();
|
||||
Cycles.incCycles();
|
||||
int register = Memory.getRegister(address);
|
||||
int newCarry = register >>7;
|
||||
int oldCarry = Memory.getCarryBit();
|
||||
register = ((register <<1) + oldCarry) & 0xFF;
|
||||
|
||||
if(newCarry == 1)
|
||||
{
|
||||
Memory.setCarryBit();
|
||||
} else if(newCarry == 0){
|
||||
Memory.clearCarryBit();
|
||||
}
|
||||
|
||||
writeToDestination(destinationBit, address, register);
|
||||
}
|
||||
}
|
||||
@@ -1,37 +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;
|
||||
|
||||
public class Rrf extends FileRegisterCommandUtils implements Command
|
||||
{
|
||||
private final int address;
|
||||
private final boolean destinationBit;
|
||||
|
||||
public Rrf(int input)
|
||||
{
|
||||
address = input & 0x007F;
|
||||
destinationBit = checkDestinationBit(input);
|
||||
}
|
||||
|
||||
@Override
|
||||
public void execute()
|
||||
{
|
||||
ProgramCounter.incPC();
|
||||
Cycles.incCycles();
|
||||
int register = Memory.getRegister(address);
|
||||
int newCarry = register & 0x01;
|
||||
int oldCarry = Memory.getCarryBit();
|
||||
register = (oldCarry << 7) + (register >>1);
|
||||
|
||||
if(newCarry == 1)
|
||||
{
|
||||
Memory.setCarryBit();
|
||||
} else if(newCarry == 0){
|
||||
Memory.clearCarryBit();
|
||||
}
|
||||
|
||||
writeToDestination(destinationBit, address, register);
|
||||
}
|
||||
}
|
||||
@@ -1,10 +1,8 @@
|
||||
package de.darkress.pic16f84sim.commands;
|
||||
|
||||
import de.darkress.pic16f84sim.microcontroller.Cycles;
|
||||
import de.darkress.pic16f84sim.microcontroller.Memory;
|
||||
import de.darkress.pic16f84sim.microcontroller.ProgramCounter;
|
||||
|
||||
public class Sublw extends LiteralCommandUtils implements Command
|
||||
public class Sublw extends CommandUtils implements Command
|
||||
{
|
||||
private final int literal;
|
||||
|
||||
@@ -36,8 +34,6 @@ public class Sublw extends LiteralCommandUtils implements Command
|
||||
@Override
|
||||
public void execute()
|
||||
{
|
||||
ProgramCounter.incPC();
|
||||
Cycles.incCycles();
|
||||
int result = literal - Memory.workingRegister + 256;
|
||||
|
||||
checkZeroBit(result);
|
||||
|
||||
@@ -1,51 +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;
|
||||
|
||||
public class Subwf extends FileRegisterCommandUtils implements Command
|
||||
{
|
||||
private final int address;
|
||||
private final boolean destinationBit;
|
||||
|
||||
public Subwf(int input)
|
||||
{
|
||||
address = input & 0x007F;
|
||||
destinationBit = checkDestinationBit(input);
|
||||
}
|
||||
|
||||
@Override
|
||||
protected void checkCarryBit(int result)
|
||||
{
|
||||
if(result <= 255){
|
||||
Memory.clearCarryBit();
|
||||
} else{
|
||||
Memory.setCarryBit();
|
||||
}
|
||||
}
|
||||
|
||||
@Override
|
||||
protected void checkDigitCarryBit(int literal)
|
||||
{
|
||||
if(((literal & 0x0F) - (Memory.workingRegister & 0x0F)) < 0){
|
||||
Memory.clearDigitCarryBit();
|
||||
} else{
|
||||
Memory.setDigitCarryBit();
|
||||
}
|
||||
}
|
||||
|
||||
@Override
|
||||
public void execute()
|
||||
{
|
||||
ProgramCounter.incPC();
|
||||
Cycles.incCycles();
|
||||
int result = Memory.getRegister(address) - Memory.workingRegister + 256;
|
||||
|
||||
checkZeroBit(result);
|
||||
checkCarryBit(result);
|
||||
checkDigitCarryBit(Memory.getRegister(address));
|
||||
|
||||
writeToDestination(destinationBit, address, result % 256);
|
||||
}
|
||||
}
|
||||
@@ -1,29 +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;
|
||||
|
||||
public class Swapf extends FileRegisterCommandUtils implements Command
|
||||
{
|
||||
private final int address;
|
||||
private final boolean destinationBit;
|
||||
|
||||
public Swapf(int input)
|
||||
{
|
||||
address = input & 0x007F;
|
||||
destinationBit = checkDestinationBit(input);
|
||||
}
|
||||
|
||||
@Override
|
||||
public void execute()
|
||||
{
|
||||
ProgramCounter.incPC();
|
||||
Cycles.incCycles();
|
||||
int result = (Memory.getRegister(address) <<4) & 0xF0;
|
||||
int tmp = Memory.getRegister(address) >>4;
|
||||
result += tmp;
|
||||
|
||||
writeToDestination(destinationBit, address, result);
|
||||
}
|
||||
}
|
||||
@@ -1,10 +1,8 @@
|
||||
package de.darkress.pic16f84sim.commands;
|
||||
|
||||
import de.darkress.pic16f84sim.microcontroller.Cycles;
|
||||
import de.darkress.pic16f84sim.microcontroller.Memory;
|
||||
import de.darkress.pic16f84sim.microcontroller.ProgramCounter;
|
||||
|
||||
public class Xorlw extends LiteralCommandUtils implements Command
|
||||
public class Xorlw extends CommandUtils implements Command
|
||||
{
|
||||
private final int literal;
|
||||
|
||||
@@ -15,8 +13,6 @@ public class Xorlw extends LiteralCommandUtils implements Command
|
||||
@Override
|
||||
public void execute()
|
||||
{
|
||||
ProgramCounter.incPC();
|
||||
Cycles.incCycles();
|
||||
int result = literal ^ Memory.workingRegister;
|
||||
|
||||
checkZeroBit(result);
|
||||
|
||||
@@ -1,29 +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;
|
||||
|
||||
public class Xorwf extends FileRegisterCommandUtils implements Command
|
||||
{
|
||||
private final int address;
|
||||
private final boolean destinationBit;
|
||||
|
||||
public Xorwf(int input)
|
||||
{
|
||||
address = input & 0x007F;
|
||||
destinationBit = checkDestinationBit(input);
|
||||
}
|
||||
|
||||
@Override
|
||||
public void execute()
|
||||
{
|
||||
ProgramCounter.incPC();
|
||||
Cycles.incCycles();
|
||||
int result = Memory.getRegister(address) ^ Memory.workingRegister;
|
||||
|
||||
checkZeroBit(result);
|
||||
|
||||
writeToDestination(destinationBit, address, result);
|
||||
}
|
||||
}
|
||||
@@ -9,33 +9,47 @@ public class CommandDecoder
|
||||
switch(input & 0x3F00)
|
||||
{
|
||||
case 0x700:
|
||||
return new Addwf(input);
|
||||
//addwf();
|
||||
break;
|
||||
case 0x500:
|
||||
return new Andwf(input);
|
||||
//andwf();
|
||||
break;
|
||||
case 0x900:
|
||||
return new Comf(input);
|
||||
//comf();
|
||||
break;
|
||||
case 0x300:
|
||||
return new Decf(input);
|
||||
//decf();
|
||||
break;
|
||||
case 0xB00:
|
||||
return new Decfsz(input);
|
||||
//decfsz();
|
||||
break;
|
||||
case 0xA00:
|
||||
return new Incf(input);
|
||||
//incf();
|
||||
break;
|
||||
case 0xF00:
|
||||
return new Incfsz(input);
|
||||
//incfsz();
|
||||
break;
|
||||
case 0x400:
|
||||
return new Iorwf(input);
|
||||
//iorwf();
|
||||
break;
|
||||
case 0x800:
|
||||
return new Movf(input);
|
||||
//movf();
|
||||
break;
|
||||
case 0xD00:
|
||||
return new Rlf(input);
|
||||
//rlf();
|
||||
break;
|
||||
case 0xC00:
|
||||
return new Rrf(input);
|
||||
//rrf();
|
||||
break;
|
||||
case 0x200:
|
||||
return new Subwf(input);
|
||||
//subwf();
|
||||
break;
|
||||
case 0xE00:
|
||||
return new Swapf(input);
|
||||
//swapf();
|
||||
break;
|
||||
case 0x600:
|
||||
return new Xorwf(input);
|
||||
//xorwf();
|
||||
break;
|
||||
case 0x3900:
|
||||
return new Andlw(input);
|
||||
case 0x3800:
|
||||
@@ -47,29 +61,38 @@ public class CommandDecoder
|
||||
switch(input & 0x3F80)
|
||||
{
|
||||
case 0x180:
|
||||
return new Clrf(input);
|
||||
//clrf();
|
||||
break;
|
||||
case 0x100:
|
||||
return new Clrw();
|
||||
//clrw();
|
||||
break;
|
||||
case 0x80:
|
||||
return new Movwf(input);
|
||||
//movwf();
|
||||
break;
|
||||
}
|
||||
|
||||
switch(input & 0x3C00)
|
||||
{
|
||||
case 0x1000:
|
||||
return new Bcf(input);
|
||||
//bcf();
|
||||
break;
|
||||
case 0x1400:
|
||||
return new Bsf(input);
|
||||
//bsf();
|
||||
break;
|
||||
case 0x1800:
|
||||
return new Btfsc(input);
|
||||
//btfsc();
|
||||
break;
|
||||
case 0x1C00:
|
||||
return new Btfss(input);
|
||||
//btfss();
|
||||
break;
|
||||
}
|
||||
|
||||
switch(input & 0x3E00)
|
||||
{
|
||||
case 0x3E00:
|
||||
//addlw();
|
||||
return new Addlw(input);
|
||||
//break;
|
||||
case 0x3C00:
|
||||
return new Sublw(input);
|
||||
}
|
||||
@@ -92,17 +115,17 @@ public class CommandDecoder
|
||||
|
||||
if ((input | 0x0060) == 0x0060)
|
||||
{
|
||||
return new Nop();
|
||||
//nop();
|
||||
}
|
||||
|
||||
if (input == 0x0064)
|
||||
{
|
||||
return new Clrwdt();
|
||||
//clrwdt();
|
||||
}
|
||||
|
||||
if (input == 0x0009)
|
||||
{
|
||||
return new Retfie();
|
||||
//retfie();
|
||||
}
|
||||
|
||||
if (input == 0x0008)
|
||||
|
||||
@@ -1,15 +0,0 @@
|
||||
package de.darkress.pic16f84sim.microcontroller;
|
||||
|
||||
public class Cycles {
|
||||
private static int cycles = 0;
|
||||
|
||||
public static void incCycles()
|
||||
{
|
||||
Timer.decreasePrescaler();
|
||||
cycles++;
|
||||
}
|
||||
|
||||
public static int getCycles() {
|
||||
return cycles;
|
||||
}
|
||||
}
|
||||
@@ -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;
|
||||
}
|
||||
}
|
||||
@@ -4,13 +4,6 @@ import java.util.Arrays;
|
||||
|
||||
public class Memory
|
||||
{
|
||||
public static void initMemory()
|
||||
{
|
||||
Memory.memory[0x81] = 0xFF; //Option
|
||||
Memory.memory[0x85] = 0x1F; //TrisA
|
||||
Memory.memory[0x86] = 0xFF; //TrisB
|
||||
Memory.setRegister(0x03, 0x18); //Status
|
||||
}
|
||||
private static final int MEMORY_SIZE = 0xFF; //Addressable Memory
|
||||
public static int workingRegister = 0;
|
||||
private static final int[] memory = new int[MEMORY_SIZE];
|
||||
@@ -54,30 +47,18 @@ public class Memory
|
||||
setDataFromIndirectAddress(indirectAddress, data);
|
||||
return;
|
||||
}
|
||||
if(address == 0x01 && !Timer.getPrescalerAssignment()) //Reset PrescalerCounter if change on Option or Timer
|
||||
// Register
|
||||
{
|
||||
Timer.resetTimeToTimerIncrease();
|
||||
Timer.setCyclesToTimerIncrease(Timer.getCyclesToTimerIncrease() - 1); //Decrease by one to account for
|
||||
// this command execution
|
||||
}
|
||||
if((Arrays.stream(bank0UniqueSpecialRegister).anyMatch(x -> x == address)) && getRegisterBank() == 0)
|
||||
{
|
||||
memory[address] = data;
|
||||
return;
|
||||
}
|
||||
if((Arrays.stream(bank0UniqueSpecialRegister).anyMatch(x -> x == address)) && getRegisterBank() == 1) //bank0
|
||||
// because of 7 Bit address
|
||||
if((Arrays.stream(bank1UniqueSpecialRegister).anyMatch(x -> x == address)) && getRegisterBank() == 1)
|
||||
{
|
||||
memory[address + 128] = data;
|
||||
return;
|
||||
}
|
||||
memory[address] = data;
|
||||
memory[address + 128] = data; //Ensure data is written to both banks to simulate mapping
|
||||
if(address == 0x2) //Check if PCL is destination
|
||||
{
|
||||
ProgramCounter.loadPc();
|
||||
}
|
||||
}
|
||||
|
||||
private static int getDataFromIndirectAddress(int address)
|
||||
@@ -87,12 +68,6 @@ public class Memory
|
||||
|
||||
private static void setDataFromIndirectAddress(int address, int data)
|
||||
{
|
||||
if((address == 0x81 || address == 0x01) && !Timer.getPrescalerAssignment()) //Reset PrescalerCounter if change on Option or Timer Register
|
||||
{
|
||||
Timer.resetTimeToTimerIncrease();
|
||||
Timer.setCyclesToTimerIncrease(Timer.getCyclesToTimerIncrease() - 1); //Decrease by one to account for
|
||||
// this command execution
|
||||
}
|
||||
if((Arrays.stream(bank0UniqueSpecialRegister).anyMatch(x -> x == address)) || (Arrays.stream(bank1UniqueSpecialRegister).anyMatch(x -> x == address)))
|
||||
{
|
||||
memory[address] = data;
|
||||
@@ -111,7 +86,7 @@ public class Memory
|
||||
return 1;
|
||||
}
|
||||
|
||||
public static int getFSR()
|
||||
private static int getFSR()
|
||||
{
|
||||
return memory[0x4];
|
||||
}
|
||||
@@ -138,28 +113,6 @@ public class Memory
|
||||
memory[0x8A] = data & 0x1F;
|
||||
}
|
||||
|
||||
public static int getOption()
|
||||
{
|
||||
return memory[0x81];
|
||||
}
|
||||
|
||||
public static int getPortB() {
|
||||
return memory[0x06];
|
||||
}
|
||||
|
||||
public static int getPortA() {
|
||||
return memory[0x05] & 0x1F;
|
||||
}
|
||||
public static int getTimer()
|
||||
{
|
||||
return memory[0x01];
|
||||
}
|
||||
|
||||
public static void setTimer(int data)
|
||||
{
|
||||
memory[0x01] = data;
|
||||
}
|
||||
|
||||
public static boolean getZeroBit()
|
||||
{
|
||||
return (memory[0x03] & 0x04) == 0x04;
|
||||
@@ -192,13 +145,9 @@ public class Memory
|
||||
memory[0x03] &= 0xFD;
|
||||
}
|
||||
|
||||
public static int getCarryBit()
|
||||
public static boolean getCarryBit()
|
||||
{
|
||||
if((memory[0x03] & 0x01) == 0x01)
|
||||
{
|
||||
return 1;
|
||||
}
|
||||
else return 0;
|
||||
return (memory[0x03] & 0x01) == 0x01;
|
||||
}
|
||||
|
||||
public static void setCarryBit()
|
||||
|
||||
@@ -20,28 +20,19 @@ public class ProgramCounter
|
||||
pc = (pch) + pcl;
|
||||
}
|
||||
|
||||
public static void setPcFromStack(int stack)
|
||||
{
|
||||
pc = stack;
|
||||
Memory.setPCL(pc & 0x00FF);
|
||||
}
|
||||
|
||||
public static void loadPc()
|
||||
{
|
||||
pc = (Memory.getPCLATH() <<8) + Memory.getPCL();
|
||||
}
|
||||
|
||||
public static void incPC() //is called after every instruction execution
|
||||
{
|
||||
pc++;
|
||||
Memory.setPCL(pc & 0x00FF);
|
||||
}
|
||||
|
||||
public static void setProgramCounter(int value) {
|
||||
if(value <= 0xFF && value >= 0)
|
||||
int pcl = Memory.getPCL();
|
||||
int pclath = Memory.getPCLATH();
|
||||
if(pcl == 0xFF)
|
||||
{
|
||||
pc = value;
|
||||
Memory.setPCL(pc);
|
||||
pclath++;
|
||||
pcl = 0;
|
||||
} else {
|
||||
pcl++;
|
||||
}
|
||||
Memory.setPCL(pcl);
|
||||
Memory.setPCLATH(pclath);
|
||||
pc = (pclath <<8) + pcl;
|
||||
}
|
||||
}
|
||||
|
||||
@@ -18,6 +18,10 @@ public class Stack
|
||||
return stack[stackPointer];
|
||||
}
|
||||
|
||||
public static int peek()
|
||||
{
|
||||
return stack[(stackPointer + 7) % 8]; //Get TopOfStack -1 +8 = 7 and modulo 8 to avoid IndexOutOfBound
|
||||
}
|
||||
|
||||
private static void pointNext()
|
||||
{
|
||||
|
||||
@@ -1,82 +0,0 @@
|
||||
package de.darkress.pic16f84sim.microcontroller;
|
||||
|
||||
public class Timer
|
||||
{
|
||||
public static int getCyclesToTimerIncrease()
|
||||
{
|
||||
return cyclesToTimerIncrease;
|
||||
}
|
||||
|
||||
public static void setCyclesToTimerIncrease(int cyclesToTimerIncrease)
|
||||
{
|
||||
Timer.cyclesToTimerIncrease = cyclesToTimerIncrease;
|
||||
}
|
||||
|
||||
private static int cyclesToTimerIncrease = 1;
|
||||
|
||||
private static boolean timerEnabled()
|
||||
{
|
||||
return (Memory.getOption() & 0x20) != 0x20;
|
||||
}
|
||||
|
||||
public static void resetTimeToTimerIncrease()
|
||||
{
|
||||
cyclesToTimerIncrease = getPrescalerFactor();
|
||||
}
|
||||
|
||||
public static boolean getPrescalerAssignment() {
|
||||
return (Memory.getOption() & 0x08) == 0x08;
|
||||
}
|
||||
|
||||
private static int getPrescalerFactor() {
|
||||
final int MULTIPLIER = 2;
|
||||
int prescalerPower = Memory.getOption() & 0x07;
|
||||
int prescaler = (int)Math.pow(2, prescalerPower);
|
||||
if(!getPrescalerAssignment())
|
||||
{
|
||||
return prescaler * MULTIPLIER;
|
||||
}
|
||||
return prescaler;
|
||||
}
|
||||
|
||||
private static void increaseTimerRegister()
|
||||
{
|
||||
int timerRegister = Memory.getRegister(0x01);
|
||||
timerRegister = (timerRegister + 1) % 256;
|
||||
if(timerRegister == 0) //check for timer Overflow --> interrupt
|
||||
{
|
||||
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);
|
||||
}
|
||||
|
||||
public static void decreasePrescaler()
|
||||
{
|
||||
if(getPrescalerAssignment()) { // Assigned to WatchdogTimer
|
||||
cyclesToTimerIncrease--;
|
||||
if(cyclesToTimerIncrease == 0) {
|
||||
resetTimeToTimerIncrease();
|
||||
Watchdog.decreaseWatchdogTimer();
|
||||
}
|
||||
} else {
|
||||
Watchdog.decreaseWatchdogTimer();
|
||||
}
|
||||
if(timerEnabled()) {
|
||||
if(!getPrescalerAssignment()) { // Assigned to timer0
|
||||
cyclesToTimerIncrease--;
|
||||
if(cyclesToTimerIncrease == 0) {
|
||||
resetTimeToTimerIncrease();
|
||||
Timer.increaseTimerRegister();
|
||||
}
|
||||
} else {
|
||||
Timer.increaseTimerRegister();
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
@@ -1,37 +0,0 @@
|
||||
package de.darkress.pic16f84sim.microcontroller;
|
||||
|
||||
public class Watchdog
|
||||
{
|
||||
private static int watchdogTimer = 18000;
|
||||
public static int getWatchdogTimer()
|
||||
{
|
||||
return watchdogTimer;
|
||||
}
|
||||
|
||||
public static void resetWatchdogTimer() {
|
||||
watchdogTimer = 18000;
|
||||
}
|
||||
|
||||
public static void decreaseWatchdogTimer()
|
||||
{
|
||||
watchdogTimer--;
|
||||
checkWatchdog();
|
||||
}
|
||||
|
||||
private static void checkWatchdog()
|
||||
{
|
||||
if(watchdogTimer == 0)
|
||||
{
|
||||
System.out.println("Watchdog Time-Out");
|
||||
Memory.setRegister(0x03, Memory.getRegister(0x03) & 0xEF); //Clear !TO in StatusReg
|
||||
}
|
||||
}
|
||||
|
||||
public static void resetProgram()
|
||||
{
|
||||
Memory.setRegister(0x03, Memory.getRegister(0x03) | 0x10); //Set !T0 in StatusReg
|
||||
ProgramCounter.setProgramCounter(0);
|
||||
watchdogTimer = 18000;
|
||||
}
|
||||
|
||||
}
|
||||
@@ -1,8 +1,5 @@
|
||||
package de.darkress.pic16f84sim.parser;
|
||||
|
||||
import de.darkress.pic16f84sim.commands.Command;
|
||||
import de.darkress.pic16f84sim.decoder.CommandDecoder;
|
||||
|
||||
import java.io.File;
|
||||
import java.io.FileNotFoundException;
|
||||
import java.util.ArrayList;
|
||||
@@ -11,9 +8,9 @@ import java.util.Scanner;
|
||||
|
||||
public class Parser
|
||||
{
|
||||
public static Command[] parser(String filePath)
|
||||
public static List<Integer> parser(String filePath)
|
||||
{
|
||||
ArrayList<String> instructions = new ArrayList<>();
|
||||
ArrayList<Integer> program = new ArrayList<>();
|
||||
try {
|
||||
File file = new File(filePath);
|
||||
Scanner scanner = new Scanner(file);
|
||||
@@ -22,10 +19,8 @@ public class Parser
|
||||
if(!data.startsWith(" "))
|
||||
{
|
||||
String commandAndParametersString = "0x" + data.split(" ")[1];
|
||||
String instructionAddress = "0x" + data.split(" ")[0];
|
||||
//int commandAndParameters = Integer.decode(commandAndParametersString);
|
||||
//program.add(commandAndParameters);
|
||||
instructions.add(instructionAddress + ", " + commandAndParametersString);
|
||||
int commandAndParameters = Integer.decode(commandAndParametersString);
|
||||
program.add(commandAndParameters);
|
||||
}
|
||||
}
|
||||
scanner.close();
|
||||
@@ -33,16 +28,6 @@ public class Parser
|
||||
System.out.println("An error occurred.");
|
||||
e.printStackTrace();
|
||||
}
|
||||
|
||||
Command[] program = new Command[1024];
|
||||
|
||||
for(int i = 0; i < instructions.size(); i++)
|
||||
{
|
||||
int instructionAddress = Integer.decode(instructions.get(i).split(", ")[0]);
|
||||
int instruction = Integer.decode(instructions.get(i).split(", ")[1]);
|
||||
program[instructionAddress] = CommandDecoder.decode(instruction);
|
||||
}
|
||||
|
||||
return program;
|
||||
}
|
||||
}
|
||||
|
||||
Reference in New Issue
Block a user