Temporarily removed the serial echo (was causing terrible performance)

example.c

@@ -203,7 +203,6 @@ void serial_init(void) {
 	
 	SCON = 0x50;
 	TI = 1;
-	ES = 1;
 }
 
 // Writes a character to the serial port.
@@ -320,11 +319,3 @@ void timer0_handler(void) __interrupt(1) {
 	if(TIMER != 0) TIMER--;
 }
 
-void serial_hanlder(void) __interrupt(4) {
-	if(RI) {
-		uint8_t data = SBUF;
-		serial_putchar(data);
-		RI = 0;
-	}
-}
-