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Author SHA1 Message Date
Darkress
ccc7f72c61 implemented Andwf instruction 2023-05-31 19:42:49 +02:00
38 changed files with 56 additions and 726 deletions

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@@ -2,28 +2,23 @@ package de.darkress.pic16f84sim;
import de.darkress.pic16f84sim.commands.Command; import de.darkress.pic16f84sim.commands.Command;
import de.darkress.pic16f84sim.decoder.CommandDecoder; 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.parser.Parser;
import java.util.concurrent.TimeUnit; import java.util.ArrayList;
class Main class Main
{ {
public static void main(String[] args) throws InterruptedException { public static void main(String[] args) {
Command[] program = Parser.parser("de/darkress/pic16f84sim/TPicSim101.LST"); ArrayList<Command> program = new ArrayList<>();
/*for(int i = 0; i < instructions.size(); i++) int input1 = 0x27FF;
program.add(CommandDecoder.decode(0x3011)); //Write 0x11 to W
Memory.setRegister(0x14, 0x14);
program.add(CommandDecoder.decode(0x0594));
for(int i = 0; i < 2; i++)
{ {
program.add(CommandDecoder.decode(instructions.get(i))); program.get(ProgramCounter.getPc()).execute();
}*/
while(ProgramCounter.getPc() < 1024)
{
program[ProgramCounter.getPc()].execute();
System.out.println(Memory.workingRegister + " " + Cycles.getCycles());
System.out.println(Memory.getPCLATH() + " " + Memory.getPCL() + "\n");
} }
} }
} }

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@@ -1,6 +1,5 @@
package de.darkress.pic16f84sim.commands; package de.darkress.pic16f84sim.commands;
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;
@@ -24,6 +23,5 @@ public class Addlw extends LiteralCommandUtils implements Command
Memory.workingRegister = result % 256; Memory.workingRegister = result % 256;
ProgramCounter.incPC(); ProgramCounter.incPC();
Cycles.addToCycles(1);
} }
} }

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@@ -1,6 +1,5 @@
package de.darkress.pic16f84sim.commands; package de.darkress.pic16f84sim.commands;
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;
@@ -26,6 +25,5 @@ public class Addwf extends FileRegisterCommandUtils implements Command
writeToDestination(destinationBit, address, result); writeToDestination(destinationBit, address, result);
ProgramCounter.incPC(); ProgramCounter.incPC();
Cycles.addToCycles(1);
} }
} }

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@@ -1,8 +1,6 @@
package de.darkress.pic16f84sim.commands; package de.darkress.pic16f84sim.commands;
import de.darkress.pic16f84sim.microcontroller.Cycles;
import de.darkress.pic16f84sim.microcontroller.Memory; import de.darkress.pic16f84sim.microcontroller.Memory;
import de.darkress.pic16f84sim.microcontroller.ProgramCounter;
public class Andlw extends LiteralCommandUtils implements Command public class Andlw extends LiteralCommandUtils implements Command
{ {
@@ -20,7 +18,5 @@ public class Andlw extends LiteralCommandUtils implements Command
checkZeroBit(result); checkZeroBit(result);
Memory.workingRegister = result % 256; Memory.workingRegister = result % 256;
ProgramCounter.incPC();
Cycles.addToCycles(1);
} }
} }

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@@ -1,6 +1,5 @@
package de.darkress.pic16f84sim.commands; package de.darkress.pic16f84sim.commands;
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;
@@ -24,6 +23,5 @@ public class Andwf extends FileRegisterCommandUtils implements Command
writeToDestination(destinationBit, address, result); writeToDestination(destinationBit, address, result);
ProgramCounter.incPC(); ProgramCounter.incPC();
Cycles.addToCycles(1);
} }
} }

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@@ -1,28 +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 Bcf extends BitOrientedCommandUtils implements Command
{
private final int address;
private int bitPlacement;
public Bcf(int input)
{
address = input & 0x007F;
bitPlacement = checkBitPlacement(input);
}
@Override
public void execute()
{
int result = Memory.getRegister(address);
result &= ~(1 << bitPlacement); //Mask n-th bit with 0
Memory.setRegister(address, result);
ProgramCounter.incPC();
Cycles.addToCycles(1);
}
}

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@@ -1,11 +0,0 @@
package de.darkress.pic16f84sim.commands;
import de.darkress.pic16f84sim.microcontroller.Memory;
public class BitOrientedCommandUtils
{
protected int checkBitPlacement(int input)
{
return ((input & 0x0380) >>7);
}
}

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@@ -1,28 +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 Bsf extends BitOrientedCommandUtils implements Command
{
private final int address;
private int bitPlacement;
public Bsf(int input)
{
address = input & 0x007F;
bitPlacement = checkBitPlacement(input);
}
@Override
public void execute()
{
int result = Memory.getRegister(address);
result |= (1 << bitPlacement);
Memory.setRegister(address, result);
ProgramCounter.incPC();
Cycles.addToCycles(1);
}
}

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@@ -1,32 +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 Btfsc extends BitOrientedCommandUtils implements Command
{
private final int address;
private int bitPlacement;
public Btfsc(int input)
{
address = input & 0x007F;
bitPlacement = checkBitPlacement(input);
}
@Override
public void execute()
{
int result = Memory.getRegister(address);
if((result & (1 << bitPlacement)) == 0) //Test if bit is clear
{
ProgramCounter.incPC();
Cycles.addToCycles(1);
}
ProgramCounter.incPC();
Cycles.addToCycles(1);
}
}

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@@ -1,32 +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 Btfss extends BitOrientedCommandUtils implements Command
{
private final int address;
private int bitPlacement;
public Btfss(int input)
{
address = input & 0x007F;
bitPlacement = checkBitPlacement(input);
}
@Override
public void execute()
{
int result = Memory.getRegister(address);
if((result & (1 << bitPlacement)) > 0) //Test if bit is set
{
ProgramCounter.incPC();
Cycles.addToCycles(1);
}
ProgramCounter.incPC();
Cycles.addToCycles(1);
}
}

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@@ -1,6 +1,5 @@
package de.darkress.pic16f84sim.commands; package de.darkress.pic16f84sim.commands;
import de.darkress.pic16f84sim.microcontroller.Cycles;
import de.darkress.pic16f84sim.microcontroller.ProgramCounter; import de.darkress.pic16f84sim.microcontroller.ProgramCounter;
import de.darkress.pic16f84sim.microcontroller.Stack; import de.darkress.pic16f84sim.microcontroller.Stack;
@@ -18,6 +17,5 @@ public class Call extends LiteralCommandUtils implements Command
{ {
Stack.push(ProgramCounter.getPc() + 1); Stack.push(ProgramCounter.getPc() + 1);
ProgramCounter.setPcFrom11BitLiteral(literal); ProgramCounter.setPcFrom11BitLiteral(literal);
Cycles.addToCycles(2);
} }
} }

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@@ -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 Clrf extends FileRegisterCommandUtils implements Command
{
private final int address;
private final boolean destinationBit;
public Clrf(int input)
{
address = input & 0x007F;
destinationBit = true;
}
@Override
public void execute()
{
final int result = 0;
checkZeroBit(result);
writeToDestination(destinationBit, address, result);
ProgramCounter.incPC();
Cycles.addToCycles(1);
}
}

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@@ -1,20 +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 Clrw extends FileRegisterCommandUtils implements Command
{
@Override
public void execute()
{
final int result = 0;
checkZeroBit(result);
Memory.workingRegister = result;
ProgramCounter.incPC();
Cycles.addToCycles(1);
}
}

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@@ -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 Comf extends FileRegisterCommandUtils implements Command
{
private final int address;
private final boolean destinationBit;
public Comf(int input)
{
address = input & 0x007F;
destinationBit = checkDestinationBit(input);
}
@Override
public void execute()
{
int result = 255 - Memory.getRegister(address); // Get inverse of 8Bit value
checkZeroBit(result);
writeToDestination(destinationBit, address, result);
ProgramCounter.incPC();
Cycles.addToCycles(1);
}
}

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@@ -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 Decf extends FileRegisterCommandUtils implements Command
{
private final int address;
private final boolean destinationBit;
public Decf(int input)
{
address = input & 0x007F;
destinationBit = checkDestinationBit(input);
}
@Override
public void execute()
{
int result = Memory.getRegister(address) + 255; // Allow underflow
checkZeroBit(result);
writeToDestination(destinationBit, address, result % 256); // Catch underflow
ProgramCounter.incPC();
Cycles.addToCycles(1);
}
}

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@@ -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()
{
int result = Memory.getRegister(address) + 255; // Allow underflow
checkZeroBit(result);
writeToDestination(destinationBit, address, result % 256); // Catch underflow
if((result % 256) == 0)
{
ProgramCounter.incPC();
Cycles.addToCycles(1);
}
ProgramCounter.incPC();
Cycles.addToCycles(1);
}
}

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@@ -1,6 +1,5 @@
package de.darkress.pic16f84sim.commands; package de.darkress.pic16f84sim.commands;
import de.darkress.pic16f84sim.microcontroller.Cycles;
import de.darkress.pic16f84sim.microcontroller.ProgramCounter; import de.darkress.pic16f84sim.microcontroller.ProgramCounter;
public class Goto extends LiteralCommandUtils implements Command public class Goto extends LiteralCommandUtils implements Command
@@ -16,6 +15,5 @@ public class Goto extends LiteralCommandUtils implements Command
public void execute() public void execute()
{ {
ProgramCounter.setPcFrom11BitLiteral(literal); ProgramCounter.setPcFrom11BitLiteral(literal);
Cycles.addToCycles(2);
} }
} }

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@@ -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()
{
int result = Memory.getRegister(address) + 1; // Allow underflow
checkZeroBit(result);
writeToDestination(destinationBit, address, result % 256); // Catch underflow
ProgramCounter.incPC();
Cycles.addToCycles(1);
}
}

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@@ -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()
{
int result = Memory.getRegister(address) + 1;
checkZeroBit(result);
writeToDestination(destinationBit, address, result % 256);
if((result % 256) == 0)
{
ProgramCounter.incPC();
Cycles.addToCycles(1);
}
ProgramCounter.incPC();
Cycles.addToCycles(1);
}
}

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@@ -1,8 +1,6 @@
package de.darkress.pic16f84sim.commands; package de.darkress.pic16f84sim.commands;
import de.darkress.pic16f84sim.microcontroller.Cycles;
import de.darkress.pic16f84sim.microcontroller.Memory; import de.darkress.pic16f84sim.microcontroller.Memory;
import de.darkress.pic16f84sim.microcontroller.ProgramCounter;
public class Iorlw extends LiteralCommandUtils implements Command public class Iorlw extends LiteralCommandUtils implements Command
{ {
@@ -20,7 +18,5 @@ public class Iorlw extends LiteralCommandUtils implements Command
checkZeroBit(result); checkZeroBit(result);
Memory.workingRegister = result % 256; Memory.workingRegister = result % 256;
ProgramCounter.incPC();
Cycles.addToCycles(1);
} }
} }

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@@ -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()
{
int result = Memory.getRegister(address) | Memory.workingRegister;
checkZeroBit(result);
writeToDestination(destinationBit, address, result);
ProgramCounter.incPC();
Cycles.addToCycles(1);
}
}

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@@ -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()
{
int result = Memory.getRegister(address);
checkZeroBit(result);
writeToDestination(destinationBit, address, result);
ProgramCounter.incPC();
Cycles.addToCycles(1);
}
}

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@@ -1,6 +1,5 @@
package de.darkress.pic16f84sim.commands; package de.darkress.pic16f84sim.commands;
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;
@@ -18,6 +17,5 @@ public class Movlw extends LiteralCommandUtils implements Command
{ {
Memory.workingRegister = literal; Memory.workingRegister = literal;
ProgramCounter.incPC(); ProgramCounter.incPC();
Cycles.addToCycles(1);
} }
} }

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@@ -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()
{
int result = Memory.workingRegister;
writeToDestination(destinationBit, address, result);
ProgramCounter.incPC();
Cycles.addToCycles(1);
}
}

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@@ -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.addToCycles(1);
}
}

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@@ -1,6 +1,5 @@
package de.darkress.pic16f84sim.commands; package de.darkress.pic16f84sim.commands;
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.Stack; import de.darkress.pic16f84sim.microcontroller.Stack;
@@ -19,6 +18,5 @@ public class Retlw extends LiteralCommandUtils implements Command
{ {
Memory.workingRegister = literal; Memory.workingRegister = literal;
ProgramCounter.setPcFromStack(Stack.pop()); ProgramCounter.setPcFromStack(Stack.pop());
Cycles.addToCycles(2);
} }
} }

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@@ -1,6 +1,5 @@
package de.darkress.pic16f84sim.commands; package de.darkress.pic16f84sim.commands;
import de.darkress.pic16f84sim.microcontroller.Cycles;
import de.darkress.pic16f84sim.microcontroller.ProgramCounter; import de.darkress.pic16f84sim.microcontroller.ProgramCounter;
import de.darkress.pic16f84sim.microcontroller.Stack; import de.darkress.pic16f84sim.microcontroller.Stack;
@@ -10,6 +9,5 @@ public class Return extends LiteralCommandUtils implements Command
public void execute() public void execute()
{ {
ProgramCounter.setPcFromStack(Stack.pop()); ProgramCounter.setPcFromStack(Stack.pop());
Cycles.addToCycles(2);
} }
} }

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@@ -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()
{
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);
ProgramCounter.incPC();
Cycles.addToCycles(1);
}
}

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@@ -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()
{
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);
ProgramCounter.incPC();
Cycles.addToCycles(1);
}
}

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@@ -1,8 +1,6 @@
package de.darkress.pic16f84sim.commands; package de.darkress.pic16f84sim.commands;
import de.darkress.pic16f84sim.microcontroller.Cycles;
import de.darkress.pic16f84sim.microcontroller.Memory; import de.darkress.pic16f84sim.microcontroller.Memory;
import de.darkress.pic16f84sim.microcontroller.ProgramCounter;
public class Sublw extends LiteralCommandUtils implements Command public class Sublw extends LiteralCommandUtils implements Command
{ {
@@ -43,7 +41,5 @@ public class Sublw extends LiteralCommandUtils implements Command
checkDigitCarryBit(literal); checkDigitCarryBit(literal);
Memory.workingRegister = result % 256; Memory.workingRegister = result % 256;
ProgramCounter.incPC();
Cycles.addToCycles(1);
} }
} }

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@@ -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()
{
int result = Memory.getRegister(address) - Memory.workingRegister + 256;
checkZeroBit(result);
checkCarryBit(result);
checkDigitCarryBit(Memory.getRegister(address));
writeToDestination(destinationBit, address, result % 256);
ProgramCounter.incPC();
Cycles.addToCycles(1);
}
}

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@@ -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()
{
int result = (Memory.getRegister(address) <<4) & 0xF0;
int tmp = Memory.getRegister(address) >>4;
result += tmp;
writeToDestination(destinationBit, address, result);
ProgramCounter.incPC();
Cycles.addToCycles(1);
}
}

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@@ -1,8 +1,6 @@
package de.darkress.pic16f84sim.commands; package de.darkress.pic16f84sim.commands;
import de.darkress.pic16f84sim.microcontroller.Cycles;
import de.darkress.pic16f84sim.microcontroller.Memory; import de.darkress.pic16f84sim.microcontroller.Memory;
import de.darkress.pic16f84sim.microcontroller.ProgramCounter;
public class Xorlw extends LiteralCommandUtils implements Command public class Xorlw extends LiteralCommandUtils implements Command
{ {
@@ -20,7 +18,5 @@ public class Xorlw extends LiteralCommandUtils implements Command
checkZeroBit(result); checkZeroBit(result);
Memory.workingRegister = result % 256; Memory.workingRegister = result % 256;
ProgramCounter.incPC();
Cycles.addToCycles(1);
} }
} }

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@@ -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()
{
int result = Memory.getRegister(address) ^ Memory.workingRegister;
checkZeroBit(result);
writeToDestination(destinationBit, address, result);
ProgramCounter.incPC();
Cycles.addToCycles(1);
}
}

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@@ -13,29 +13,41 @@ public class CommandDecoder
case 0x500: case 0x500:
return new Andwf(input); return new Andwf(input);
case 0x900: case 0x900:
return new Comf(input); //comf();
break;
case 0x300: case 0x300:
return new Decf(input); //decf();
break;
case 0xB00: case 0xB00:
return new Decfsz(input); //decfsz();
break;
case 0xA00: case 0xA00:
return new Incf(input); //incf();
break;
case 0xF00: case 0xF00:
return new Incfsz(input); //incfsz();
break;
case 0x400: case 0x400:
return new Iorwf(input); //iorwf();
break;
case 0x800: case 0x800:
return new Movf(input); //movf();
break;
case 0xD00: case 0xD00:
return new Rlf(input); //rlf();
break;
case 0xC00: case 0xC00:
return new Rrf(input); //rrf();
break;
case 0x200: case 0x200:
return new Subwf(input); //subwf();
break;
case 0xE00: case 0xE00:
return new Swapf(input); //swapf();
break;
case 0x600: case 0x600:
return new Xorwf(input); //xorwf();
break;
case 0x3900: case 0x3900:
return new Andlw(input); return new Andlw(input);
case 0x3800: case 0x3800:
@@ -47,29 +59,38 @@ public class CommandDecoder
switch(input & 0x3F80) switch(input & 0x3F80)
{ {
case 0x180: case 0x180:
return new Clrf(input); //clrf();
break;
case 0x100: case 0x100:
return new Clrw(); //clrw();
break;
case 0x80: case 0x80:
return new Movwf(input); //movwf();
break;
} }
switch(input & 0x3C00) switch(input & 0x3C00)
{ {
case 0x1000: case 0x1000:
return new Bcf(input); //bcf();
break;
case 0x1400: case 0x1400:
return new Bsf(input); //bsf();
break;
case 0x1800: case 0x1800:
return new Btfsc(input); //btfsc();
break;
case 0x1C00: case 0x1C00:
return new Btfss(input); //btfss();
break;
} }
switch(input & 0x3E00) switch(input & 0x3E00)
{ {
case 0x3E00: case 0x3E00:
//addlw();
return new Addlw(input); return new Addlw(input);
//break;
case 0x3C00: case 0x3C00:
return new Sublw(input); return new Sublw(input);
} }
@@ -92,7 +113,7 @@ public class CommandDecoder
if ((input | 0x0060) == 0x0060) if ((input | 0x0060) == 0x0060)
{ {
return new Nop(); //nop();
} }
if (input == 0x0064) if (input == 0x0064)

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@@ -1,14 +0,0 @@
package de.darkress.pic16f84sim.microcontroller;
public class Cycles {
private static int cycles = 0;
public static void addToCycles(int increase)
{
cycles += increase;
}
public static int getCycles() {
return cycles;
}
}

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@@ -153,13 +153,9 @@ public class Memory
memory[0x03] &= 0xFD; memory[0x03] &= 0xFD;
} }
public static int getCarryBit() public static boolean getCarryBit()
{ {
if((memory[0x03] & 0x01) == 0x01) return (memory[0x03] & 0x01) == 0x01;
{
return 1;
}
else return 0;
} }
public static void setCarryBit() public static void setCarryBit()

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@@ -1,8 +1,5 @@
package de.darkress.pic16f84sim.parser; package de.darkress.pic16f84sim.parser;
import de.darkress.pic16f84sim.commands.Command;
import de.darkress.pic16f84sim.decoder.CommandDecoder;
import java.io.File; import java.io.File;
import java.io.FileNotFoundException; import java.io.FileNotFoundException;
import java.util.ArrayList; import java.util.ArrayList;
@@ -11,9 +8,9 @@ import java.util.Scanner;
public class Parser 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 { try {
File file = new File(filePath); File file = new File(filePath);
Scanner scanner = new Scanner(file); Scanner scanner = new Scanner(file);
@@ -22,10 +19,8 @@ public class Parser
if(!data.startsWith(" ")) if(!data.startsWith(" "))
{ {
String commandAndParametersString = "0x" + data.split(" ")[1]; String commandAndParametersString = "0x" + data.split(" ")[1];
String instructionAddress = "0x" + data.split(" ")[0]; int commandAndParameters = Integer.decode(commandAndParametersString);
//int commandAndParameters = Integer.decode(commandAndParametersString); program.add(commandAndParameters);
//program.add(commandAndParameters);
instructions.add(instructionAddress + ", " + commandAndParametersString);
} }
} }
scanner.close(); scanner.close();
@@ -33,16 +28,6 @@ public class Parser
System.out.println("An error occurred."); System.out.println("An error occurred.");
e.printStackTrace(); 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; return program;
} }
} }