#include <msp430.h>

.extern line

.global __isr_8
__isr_8:
    bic #CCIFG, &TA0CCTL2

    push r15
    push r14
    push r13
    push r12
    push r11
    push r10
    push r9
    push r8
    
    mov &line, r15
    mov &line + 2, r14
    mov &line + 4, r13
    mov &line + 6, r12
    mov &line + 8, r11
    mov &line + 10, r10
    mov &line + 12, r9
    mov &line + 14, r8

.rept 16
    mov.b r15, &P2OUT
    rra r15
.endr

.rept 16
    mov.b r14, &P2OUT
    rra r14
.endr

.rept 16
    mov.b r13, &P2OUT
    rra r13
.endr

.rept 16
    mov.b r12, &P2OUT
    rra r12
.endr

.rept 16
    mov.b r11, &P2OUT
    rra r11
.endr

.rept 16
    mov.b r10, &P2OUT
    rra r10
.endr

.rept 16
    mov.b r9, &P2OUT
    rra r9
.endr

.rept 16
    mov.b r8, &P2OUT
    rra r8
.endr

    mov #0, &P2OUT
    
    pop r8
    pop r9
    pop r10
    pop r11
    pop r12
    pop r13
    pop r14
    pop r15

    reti