#include <msp430.h>

.extern well_line
.extern well_vert_line
.extern bmp_line

.global __isr_8
__isr_8:
    bic #CCIFG, &TA0CCTL2

    push r15
    push r14
    push r13
    push r12
    push r11
    push r10
    
    mov &well_line, r15
    mov &well_vert_line, r14
    mov &bmp_line, r13
    mov &bmp_line + 2, r12
    mov &bmp_line + 4, r11
    mov &bmp_line + 6, r10

    rla r14

.rept 16
    nop
.endr
    
    mov.b #1, &P2OUT
    nop
    nop
    mov.b #0, &P2OUT
    nop

.rept 10
    mov.b r15, &P2OUT
    nop
    nop
    nop
    nop
    nop
    nop
    nop
    nop
    nop
    nop
    nop
    nop
    nop
    rra r14
    mov.b r14, &P2OUT
    rra r15
.endr
    
    mov.b #1, &P2OUT
    nop
    mov.b #0, &P2OUT

.rept 16
    nop
.endr

.rept 3
    mov.b r15, &P2OUT
    nop
    nop
    nop
    nop
    nop
    nop
    nop
    nop
    nop
    nop
    nop
    nop
    nop
    rra r14
    mov.b r14, &P2OUT
    rra r15
.endr

.rept 16
    nop
.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

    mov.b #0, &P2OUT
    
    pop r10
    pop r11
    pop r12
    pop r13
    pop r14
    pop r15

    reti