.include "msp430g2553.inc"
org 0xc000
start:
    mov.w #WDTPW|WDTHOLD, &WDTCTL
    mov.b #0x41, &P1DIR
    mov.w #0x01, r8
repeat:
    mov.b r8, &P1OUT
    xor.b #0x41, r8
    mov.w #60000, r9
waiter:
    dec r9
    jnz waiter
    jmp repeat

org 0xfffe
    dw start