Compare commits

..

18 Commits

Author SHA1 Message Date
darkress
da6322e513 parser now acounts for instruction address 2023-06-12 16:13:13 +02:00
darkress
c9fcc03892 increase Cycles after every Instruction (#30)
Co-authored-by: darkress <30271678+DarkressX@users.noreply.github.com>
Reviewed-on: darkress/pic16f84-sim#30
2023-06-12 13:34:52 +02:00
darkress
2a24c2058f increment PC after every Instruction (#29)
Co-authored-by: darkress <30271678+DarkressX@users.noreply.github.com>
Reviewed-on: darkress/pic16f84-sim#29
2023-06-12 13:24:46 +02:00
darkress
184c49f3ae implemented btfss Instruction (#28)
Co-authored-by: Darkress <30271678+DarkressX@users.noreply.github.com>
Reviewed-on: darkress/pic16f84-sim#28
2023-06-07 21:34:23 +02:00
darkress
5cb1573a08 implemented btfsc Instruction (#27)
Co-authored-by: Darkress <30271678+DarkressX@users.noreply.github.com>
Reviewed-on: darkress/pic16f84-sim#27
2023-06-07 21:31:11 +02:00
darkress
d11f1b06f6 implemented bsf Instruction (#26)
Co-authored-by: Darkress <30271678+DarkressX@users.noreply.github.com>
Reviewed-on: darkress/pic16f84-sim#26
2023-06-07 21:19:12 +02:00
darkress
fa89faa979 implemented bcfInstruction (#25)
Co-authored-by: Darkress <30271678+DarkressX@users.noreply.github.com>
Reviewed-on: darkress/pic16f84-sim#25
2023-06-07 20:50:48 +02:00
darkress
b10ad35ae8 Added Xorwf Instruction (#24)
Co-authored-by: Darkress <30271678+DarkressX@users.noreply.github.com>
Reviewed-on: darkress/pic16f84-sim#24
2023-06-07 20:21:28 +02:00
darkress
b298b97652 Added swapf Instruction (#23)
Co-authored-by: Darkress <30271678+DarkressX@users.noreply.github.com>
Reviewed-on: darkress/pic16f84-sim#23
2023-06-07 20:17:31 +02:00
darkress
d8ed3ab9b1 implemented subwf Instruction (#22)
Co-authored-by: Darkress <30271678+DarkressX@users.noreply.github.com>
Reviewed-on: darkress/pic16f84-sim#22
2023-06-06 07:35:12 +02:00
darkress
d25a66134a implemented Rrf Instruction (#21)
Co-authored-by: Darkress <30271678+DarkressX@users.noreply.github.com>
Reviewed-on: darkress/pic16f84-sim#21
2023-06-06 02:42:28 +02:00
darkress
01bd5acb46 implemented Rlf Instruction (#20)
Co-authored-by: Darkress <30271678+DarkressX@users.noreply.github.com>
Reviewed-on: darkress/pic16f84-sim#20
2023-06-06 02:22:29 +02:00
darkress
40b7a4a478 implemented Movwf instruction (#19)
Co-authored-by: Darkress <30271678+DarkressX@users.noreply.github.com>
Reviewed-on: darkress/pic16f84-sim#19
2023-06-06 00:00:58 +02:00
darkress
a5e3039667 implemented Movf Instruction (#18)
Co-authored-by: Darkress <30271678+DarkressX@users.noreply.github.com>
Reviewed-on: darkress/pic16f84-sim#18
2023-06-04 20:42:21 +02:00
darkress
537b4559c4 implemented Iorwf Instruction (#17)
Co-authored-by: Darkress <30271678+DarkressX@users.noreply.github.com>
Reviewed-on: darkress/pic16f84-sim#17
2023-06-03 23:29:27 +02:00
darkress
1a9f2436ef implemented Clrf Instruction (#16)
Co-authored-by: darkress <30271678+DarkressX@users.noreply.github.com>
Reviewed-on: darkress/pic16f84-sim#16
2023-06-02 23:54:20 +02:00
darkress
ab9f378d34 implemented Clrw instruction (#15)
Co-authored-by: darkress <github@darkress.xyz>
Reviewed-on: darkress/pic16f84-sim#15
2023-06-02 23:29:15 +02:00
darkress
b23bf4c54b implemented Incfsz Instruction (#14)
Co-authored-by: Darkress <30271678+DarkressX@users.noreply.github.com>
Reviewed-on: darkress/pic16f84-sim#14
2023-05-31 22:30:29 +02:00
38 changed files with 563 additions and 51 deletions

View File

@@ -2,25 +2,28 @@ package de.darkress.pic16f84sim;
import de.darkress.pic16f84sim.commands.Command;
import de.darkress.pic16f84sim.decoder.CommandDecoder;
import de.darkress.pic16f84sim.microcontroller.Cycles;
import de.darkress.pic16f84sim.microcontroller.Memory;
import de.darkress.pic16f84sim.microcontroller.ProgramCounter;
import de.darkress.pic16f84sim.parser.Parser;
import java.util.ArrayList;
import java.util.concurrent.TimeUnit;
class Main
{
public static void main(String[] args) {
public static void main(String[] args) throws InterruptedException {
ArrayList<Command> program = new ArrayList<>();
int input1 = 0x27FF;
program.add(CommandDecoder.decode(0x3011)); //Write 0x11 to W
Memory.setRegister(0x14, 0xFE);
program.add(CommandDecoder.decode(0x0F94)); //Write 0x11 to W
program.add(CommandDecoder.decode(0x0F94)); //Write 0x11 to W
program.add(CommandDecoder.decode(0x0F94)); //Write 0x11 to W
for(int i = 0; i < program.size(); i++)
Command[] program = Parser.parser("de/darkress/pic16f84sim/TPicSim101.LST");
/*for(int i = 0; i < instructions.size(); i++)
{
program.get(ProgramCounter.getPc()).execute();
program.add(CommandDecoder.decode(instructions.get(i)));
}*/
while(ProgramCounter.getPc() < 1024)
{
program[ProgramCounter.getPc()].execute();
System.out.println(Memory.workingRegister + " " + Cycles.getCycles());
System.out.println(Memory.getPCLATH() + " " + Memory.getPCL() + "\n");
}
}
}

View File

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

View File

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

View File

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

View File

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

View File

@@ -0,0 +1,28 @@
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);
}
}

View File

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

View File

@@ -0,0 +1,28 @@
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);
}
}

View File

@@ -0,0 +1,32 @@
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);
}
}

View File

@@ -0,0 +1,32 @@
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);
}
}

View File

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

View File

@@ -0,0 +1,29 @@
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);
}
}

View File

@@ -0,0 +1,20 @@
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);
}
}

View File

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

View File

@@ -1,5 +1,6 @@
package de.darkress.pic16f84sim.commands;
import de.darkress.pic16f84sim.microcontroller.Cycles;
import de.darkress.pic16f84sim.microcontroller.Memory;
import de.darkress.pic16f84sim.microcontroller.ProgramCounter;
@@ -23,5 +24,6 @@ public class Decf extends FileRegisterCommandUtils implements Command
writeToDestination(destinationBit, address, result % 256); // Catch underflow
ProgramCounter.incPC();
Cycles.addToCycles(1);
}
}

View File

@@ -1,5 +1,6 @@
package de.darkress.pic16f84sim.commands;
import de.darkress.pic16f84sim.microcontroller.Cycles;
import de.darkress.pic16f84sim.microcontroller.Memory;
import de.darkress.pic16f84sim.microcontroller.ProgramCounter;
@@ -25,9 +26,10 @@ public class Decfsz extends FileRegisterCommandUtils implements Command
if((result % 256) == 0)
{
Nop nop = new Nop();
nop.execute();
ProgramCounter.incPC();
Cycles.addToCycles(1);
}
ProgramCounter.incPC();
Cycles.addToCycles(1);
}
}

View File

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

View File

@@ -1,5 +1,6 @@
package de.darkress.pic16f84sim.commands;
import de.darkress.pic16f84sim.microcontroller.Cycles;
import de.darkress.pic16f84sim.microcontroller.Memory;
import de.darkress.pic16f84sim.microcontroller.ProgramCounter;
@@ -23,5 +24,6 @@ public class Incf extends FileRegisterCommandUtils implements Command
writeToDestination(destinationBit, address, result % 256); // Catch underflow
ProgramCounter.incPC();
Cycles.addToCycles(1);
}
}

View File

@@ -1,5 +1,6 @@
package de.darkress.pic16f84sim.commands;
import de.darkress.pic16f84sim.microcontroller.Cycles;
import de.darkress.pic16f84sim.microcontroller.Memory;
import de.darkress.pic16f84sim.microcontroller.ProgramCounter;
@@ -25,9 +26,10 @@ public class Incfsz extends FileRegisterCommandUtils implements Command
if((result % 256) == 0)
{
Nop nop = new Nop();
nop.execute();
ProgramCounter.incPC();
Cycles.addToCycles(1);
}
ProgramCounter.incPC();
Cycles.addToCycles(1);
}
}

View File

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

View File

@@ -0,0 +1,29 @@
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);
}
}

View File

@@ -0,0 +1,29 @@
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);
}
}

View File

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

View File

@@ -0,0 +1,27 @@
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);
}
}

View File

@@ -1,5 +1,6 @@
package de.darkress.pic16f84sim.commands;
import de.darkress.pic16f84sim.microcontroller.Cycles;
import de.darkress.pic16f84sim.microcontroller.ProgramCounter;
public class Nop extends LiteralCommandUtils implements Command
@@ -10,5 +11,6 @@ public class Nop extends LiteralCommandUtils implements Command
{
// Do nothing, just increment the PC
ProgramCounter.incPC();
Cycles.addToCycles(1);
}
}

View File

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

View File

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

View File

@@ -0,0 +1,37 @@
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);
}
}

View File

@@ -0,0 +1,37 @@
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);
}
}

View File

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

View File

@@ -0,0 +1,51 @@
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);
}
}

View File

@@ -0,0 +1,29 @@
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);
}
}

View File

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

View File

@@ -0,0 +1,29 @@
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);
}
}

View File

@@ -23,26 +23,19 @@ public class CommandDecoder
case 0xF00:
return new Incfsz(input);
case 0x400:
//iorwf();
break;
return new Iorwf(input);
case 0x800:
//movf();
break;
return new Movf(input);
case 0xD00:
//rlf();
break;
return new Rlf(input);
case 0xC00:
//rrf();
break;
return new Rrf(input);
case 0x200:
//subwf();
break;
return new Subwf(input);
case 0xE00:
//swapf();
break;
return new Swapf(input);
case 0x600:
//xorwf();
break;
return new Xorwf(input);
case 0x3900:
return new Andlw(input);
case 0x3800:
@@ -54,38 +47,29 @@ public class CommandDecoder
switch(input & 0x3F80)
{
case 0x180:
//clrf();
break;
return new Clrf(input);
case 0x100:
//clrw();
break;
return new Clrw();
case 0x80:
//movwf();
break;
return new Movwf(input);
}
switch(input & 0x3C00)
{
case 0x1000:
//bcf();
break;
return new Bcf(input);
case 0x1400:
//bsf();
break;
return new Bsf(input);
case 0x1800:
//btfsc();
break;
return new Btfsc(input);
case 0x1C00:
//btfss();
break;
return new Btfss(input);
}
switch(input & 0x3E00)
{
case 0x3E00:
//addlw();
return new Addlw(input);
//break;
case 0x3C00:
return new Sublw(input);
}

View File

@@ -0,0 +1,14 @@
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;
}
}

View File

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

View File

@@ -1,5 +1,8 @@
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;
@@ -8,9 +11,9 @@ import java.util.Scanner;
public class Parser
{
public static List<Integer> parser(String filePath)
public static Command[] parser(String filePath)
{
ArrayList<Integer> program = new ArrayList<>();
ArrayList<String> instructions = new ArrayList<>();
try {
File file = new File(filePath);
Scanner scanner = new Scanner(file);
@@ -19,8 +22,10 @@ public class Parser
if(!data.startsWith(" "))
{
String commandAndParametersString = "0x" + data.split(" ")[1];
int commandAndParameters = Integer.decode(commandAndParametersString);
program.add(commandAndParameters);
String instructionAddress = "0x" + data.split(" ")[0];
//int commandAndParameters = Integer.decode(commandAndParametersString);
//program.add(commandAndParameters);
instructions.add(instructionAddress + ", " + commandAndParametersString);
}
}
scanner.close();
@@ -28,6 +33,16 @@ 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;
}
}