diff --git a/src/bootloader/test.c b/src/bootloader/test.c
index 6180cfd..da8b5ca 100644
--- a/src/bootloader/test.c
+++ b/src/bootloader/test.c
@@ -1,28 +1,38 @@
 #include "libsys_boot.h"
+
+void handler3(void)
+{
+	volatile uint32_t *pUART0_stat = (uint32_t*)SYS_UART_STAT;
+	volatile uint32_t *pUART0_data = (uint32_t*)SYS_UART_DATA;
+
+	while(0x200 & *pUART0_stat)
+	{
+		sputs("RX: "); print_word((int)*pUART0_data); sputs("\n");
+	}
+}
+
 void main()
 {
-	uint32_t i;
-	
+	uint8_t led = 0;
 	volatile uint32_t *pUART0_stat = (uint32_t*)SYS_UART_STAT;
 	volatile uint32_t *pGPIO = (uint32_t*)SYS_GPIO_0_DATA;
 	volatile uint32_t *pGPIODIR = (uint32_t*)SYS_GPIO_0_DIR;
 	volatile uint32_t *pRAM = (uint32_t*)SDRAM_BASE;
 	
+	CP0_SR_write(0x0060000D);
 	*pGPIODIR = GPIO_0_DFLT_DIR;
-	uint8_t led = 0;
+
+	interrupt_init();
+	interrupt_register(3, (void*)handler3);
+	interrupt_enable(3);
 
 	// UART: enable RX interrupt
 	*pUART0_stat |= (1 << 6);
 
-	CP0_SR_write(0x0060000D);
-	interrupt_enable(3);
-
 	sputs("Hello, world!\n");
 	while(1)
 	{
 		sputs("Iteration # ");print_word(led);sputs("\n");
-		sputs("Uart status : ");print_word(*pUART0_stat);sputs("\n");
-		sputs("CPU status  : ");print_word(CP0_SR_read());sputs("\n");
 
 		*pGPIO = led;
 		if(led == 0)