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Author SHA1 Message Date
Darkress
b9a74c108e implemented Addwf Instruction 2023-05-31 15:07:30 +02:00
9 changed files with 16 additions and 200 deletions

View File

@@ -14,11 +14,9 @@ class Main
ArrayList<Command> program = new ArrayList<>(); ArrayList<Command> program = new ArrayList<>();
int input1 = 0x27FF; int input1 = 0x27FF;
program.add(CommandDecoder.decode(0x3011)); //Write 0x11 to W program.add(CommandDecoder.decode(0x3011)); //Write 0x11 to W
Memory.setRegister(0x14, 0xFE); Memory.setRegister(0x14, 0x14);
program.add(CommandDecoder.decode(0x0F94)); //Write 0x11 to W program.add(CommandDecoder.decode(0x0714));
program.add(CommandDecoder.decode(0x0F94)); //Write 0x11 to W for(int i = 0; i < 2; i++)
program.add(CommandDecoder.decode(0x0F94)); //Write 0x11 to W
for(int i = 0; i < program.size(); i++)
{ {
program.get(ProgramCounter.getPc()).execute(); 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();
}
}

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@@ -1,33 +0,0 @@
package de.darkress.pic16f84sim.commands;
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)
{
Nop nop = new Nop();
nop.execute();
}
ProgramCounter.incPC();
}
}

View File

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

View File

@@ -1,33 +0,0 @@
package de.darkress.pic16f84sim.commands;
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)
{
Nop nop = new Nop();
nop.execute();
}
ProgramCounter.incPC();
}
}

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@@ -1,14 +0,0 @@
package de.darkress.pic16f84sim.commands;
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();
}
}

View File

@@ -11,17 +11,23 @@ public class CommandDecoder
case 0x700: case 0x700:
return new Addwf(input); return new Addwf(input);
case 0x500: case 0x500:
return new Andwf(input); //andwf();
break;
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:
//iorwf(); //iorwf();
break; break;
@@ -108,7 +114,7 @@ public class CommandDecoder
if ((input | 0x0060) == 0x0060) if ((input | 0x0060) == 0x0060)
{ {
return new Nop(); //nop();
} }
if (input == 0x0064) if (input == 0x0064)