#include "msp430.h"                     ; #define controlled include file

        NAME    main                    ; module name

        PUBLIC  main                    ; make the main label vissible
                                        ; outside this module
        ORG     0FFFEh
        DC16    init                    ; set reset vector to 'init' label

        RSEG    CSTACK                  ; pre-declaration of segment
        RSEG    CODE                    ; place program in 'CODE' segment

init:   MOV     #SFE(CSTACK), SP        ; set up stack
        MOV.W   #1, R4
        MOV.B   #0x00, P1SEL
        MOV.B   #00000000b, P1DIR
        MOV.W   #0xFFFF, R7
        MOV.W   #WDTPW+WDTHOLD,&WDTCTL  ; Stop watchdog timer


;R4 is the input register, R5 is the size counter for the input
;R6 is the counter for longpress
main:                                  ; main program
        MOV.B   P1IN, R8
        CLRC
        CMP.W   #100000000b, R4
        JC     setoutput
        CLRC
        CMP.B   #0, P1IN
        JZ     getinput0
        JMP main
        JMP $                           ; jump to current location '$'
                                        ; (endless loop)

setoutput:
        MOV.B #0xFF, P1DIR              ;Set direction to output
        MOV.B #0xFF, P1OUT                 ;Send the inputted number to the output
        ;BIS.B #0xFF, P1DIR              ;Set direction to output
        JMP outputloop

getinput0:
        CLRC
        RLC R4
        MOV.W #0xFFFF, R6
        JMP longpress


longpress:
        DEC R6
        CLRC
        CMP.W #0, R6
        JZ longpress1
        JMP longpress

longpress1:
        CLRC
        CMP.B #0, P1IN
        JZ      _add
        JMP     main

_add:
        ADD #1b, R4
        JMP main

outputloop:
        JMP $

flash:
        MOV.B   #0xFF, P1DIR
        MOV.B   #0xFF, P1OUT

wait:
        DEC     R7
        CMP     #0, R7
        ;JNC     getinput
        JMP     wait

        END