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Added swapf Instruction (#23)

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Co-authored-by: Darkress <30271678+DarkressX@users.noreply.github.com>
Reviewed-on: darkress/pic16f84-sim#23
This commit was merged in pull request #23.
This commit is contained in:
darkress
2023-06-07 20:17:31 +02:00
parent d8ed3ab9b1
commit b298b97652
5 changed files with 32 additions and 6 deletions
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2
de/darkress/pic16f84sim/commands/Decfsz.java
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@@ -26,7 +26,7 @@ public class Decfsz extends FileRegisterCommandUtils implements Command
if((result % 256) == 0)
{
Nop nop = new Nop();
nop.execute();
nop.execute(); // TODO: What happens if an interrupt gets triggered during the nop execution?
}
ProgramCounter.incPC();
}

2
de/darkress/pic16f84sim/commands/Incfsz.java
View File

@@ -26,7 +26,7 @@ public class Incfsz extends FileRegisterCommandUtils implements Command
if((result % 256) == 0)
{
Nop nop = new Nop();
nop.execute();
nop.execute(); // TODO: What happens if an interrupt gets triggered during the nop execution?
}
ProgramCounter.incPC();
}

27
de/darkress/pic16f84sim/commands/Swapf.java Normal file
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@@ -0,0 +1,27 @@
package de.darkress.pic16f84sim.commands;
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();
}
}