122 lines
2.8 KiB
Java
122 lines
2.8 KiB
Java
package de.darkress.pic16f84sim.decoder;
|
|
|
|
import de.darkress.pic16f84sim.commands.*;
|
|
|
|
public class CommandDecoder
|
|
{
|
|
public static Command decode(int input)
|
|
{
|
|
switch(input & 0x3F00)
|
|
{
|
|
case 0x700:
|
|
return new Addwf(input);
|
|
case 0x500:
|
|
return new Andwf(input);
|
|
case 0x900:
|
|
return new Comf(input);
|
|
case 0x300:
|
|
return new Decf(input);
|
|
case 0xB00:
|
|
return new Decfsz(input);
|
|
case 0xA00:
|
|
return new Incf(input);
|
|
case 0xF00:
|
|
return new Incfsz(input);
|
|
case 0x400:
|
|
return new Iorwf(input);
|
|
case 0x800:
|
|
return new Movf(input);
|
|
case 0xD00:
|
|
return new Rlf(input);
|
|
case 0xC00:
|
|
return new Rrf(input);
|
|
case 0x200:
|
|
return new Subwf(input);
|
|
case 0xE00:
|
|
return new Swapf(input);
|
|
case 0x600:
|
|
return new Xorwf(input);
|
|
case 0x3900:
|
|
return new Andlw(input);
|
|
case 0x3800:
|
|
return new Iorlw(input);
|
|
case 0x3A00:
|
|
return new Xorlw(input);
|
|
}
|
|
|
|
switch(input & 0x3F80)
|
|
{
|
|
case 0x180:
|
|
return new Clrf(input);
|
|
case 0x100:
|
|
return new Clrw();
|
|
case 0x80:
|
|
return new Movwf(input);
|
|
}
|
|
|
|
switch(input & 0x3C00)
|
|
{
|
|
case 0x1000:
|
|
return new Bcf(input);
|
|
case 0x1400:
|
|
return new Bsf(input);
|
|
case 0x1800:
|
|
return new Btfsc(input);
|
|
case 0x1C00:
|
|
return new Btfss(input);
|
|
}
|
|
|
|
switch(input & 0x3E00)
|
|
{
|
|
case 0x3E00:
|
|
return new Addlw(input);
|
|
case 0x3C00:
|
|
return new Sublw(input);
|
|
}
|
|
|
|
switch(input & 0x3800)
|
|
{
|
|
case 0x2000:
|
|
return new Call(input);
|
|
case 0x2800:
|
|
return new Goto(input);
|
|
}
|
|
|
|
switch(input & 0x3C00)
|
|
{
|
|
case 0x3000:
|
|
return new Movlw(input);
|
|
case 0x3400:
|
|
return new Retlw(input);
|
|
}
|
|
|
|
if ((input | 0x0060) == 0x0060)
|
|
{
|
|
return new Nop();
|
|
}
|
|
|
|
if (input == 0x0064)
|
|
{
|
|
return new Clrwdt();
|
|
}
|
|
|
|
if (input == 0x0009)
|
|
{
|
|
//retfie();
|
|
}
|
|
|
|
if (input == 0x0008)
|
|
{
|
|
return new Return();
|
|
}
|
|
|
|
if (input == 0x0063)
|
|
{
|
|
//sleep();
|
|
}
|
|
|
|
System.out.println("No command matched");
|
|
return null;
|
|
}
|
|
}
|