public void executeSYSCALL(Instruction instruction) {
		//incorrect
		
		AppContext.PROGRAM_COUNTER++;	
		/* -- System call

	Description:
	Generates a software interrupt.
	Operation:
	advance_pc (4);
	Syntax:
	syscall
	Encoding:
	0000 00-- ---- ---- ---- ---- --00 1100
		 */ 
	}