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Author SHA1 Message Date
Darkress
b9a74c108e implemented Addwf Instruction 2023-05-31 15:07:30 +02:00
5 changed files with 8 additions and 86 deletions

View File

@@ -14,8 +14,8 @@ class Main
ArrayList<Command> program = new ArrayList<>();
int input1 = 0x27FF;
program.add(CommandDecoder.decode(0x3011)); //Write 0x11 to W
Memory.setRegister(0x14, 0x01);
program.add(CommandDecoder.decode(0x0314));
Memory.setRegister(0x14, 0x14);
program.add(CommandDecoder.decode(0x0714));
for(int i = 0; i < 2; i++)
{
program.get(ProgramCounter.getPc()).execute();

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@@ -1,27 +0,0 @@
package de.darkress.pic16f84sim.commands;
import de.darkress.pic16f84sim.microcontroller.Memory;
import de.darkress.pic16f84sim.microcontroller.ProgramCounter;
public class Andwf extends FileRegisterCommandUtils implements Command
{
private final int address;
private final boolean destinationBit;
public Andwf(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();
}
}

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@@ -1,27 +0,0 @@
package de.darkress.pic16f84sim.commands;
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();
}
}

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@@ -1,27 +0,0 @@
package de.darkress.pic16f84sim.commands;
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();
}
}

View File

@@ -11,11 +11,14 @@ public class CommandDecoder
case 0x700:
return new Addwf(input);
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:
//decfsz();
break;