SIGNAL void prob6_sim (void) {
  	printf("prob6_sim loaded...\n\n");
	PORT4 = 0x00;twatch( 50*41779);	 
	PORT4 = 0x10;twatch(  9*41779);	 
	PORT4 = 0x30;twatch(  5*41779);	 
	PORT4 = 0x20;twatch(  4*41779);	 
	PORT4 = 0x00;twatch(  6*41779);	 
	PORT4 = 0x20;twatch(  8*41779);	 
	PORT4 = 0x30;twatch(  3*41779);	 
	PORT4 = 0x10;twatch(  5*41779);	 
	PORT4 = 0x00;twatch( 10*41779);	 
	PORT4 = 0x20;twatch(  6*41779);	 
	PORT4 = 0x30;twatch(  4*41779);	 
	PORT4 = 0x10;twatch(  9*41779);	 
	PORT4 = 0x00;twatch( 11*41779);	 
	PORT4 = 0x20;twatch(  5*41779);	 
	PORT4 = 0x00;twatch(  4*41779);	 
	PORT4 = 0x20;twatch(  5*41779);	
	PORT4 = 0x00;twatch( 12*41779);	
	PORT4 = 0x10;twatch( 15*41779);	
	PORT4 = 0x20;twatch(  5*41779);	
	PORT4 = 0x00;twatch(  7*41779);	
	PORT4 = 0x10;twatch(  8*41779);	
	PORT4 = 0x00;twatch(  7*41779);	
	PORT4 = 0x30;twatch(  4*41779);	
	PORT4 = 0x10;twatch(  9*41779);	
	while(1) {PORT4 = 0x10;twatch(1);}
}