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void timer_phase(int hz){
    int divisor = 1193180 / hz;       /* Calculate our divisor */
    port_byte_out(0x43, 0x36);             /* Set our command byte 0x36 */
    port_byte_out(0x40, divisor & 0xFF);   /* Set low byte of divisor */
    port_byte_out(0x40, divisor >> 8);     /* Set high byte of divisor */
}

void timer_handler(struct registers_state *r){
	/* Increment our 'tick count' */
    ticks_counter++;

    /* Every 18 clocks (approximately 1 second), we will
    *  display a message on the screen */
    if (ticks_counter){
        char ts_buff[8];
        pocha_vga_draws(itoa(ticks_counter, ts_buff), pocha_vga_color(VGA_COLOR_Red, VGA_COLOR_White), 0, 0);
    }
}

void timer_install(){
	irq_install_handler(0, timer_handler);
}

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void _irq_handler(struct registers_state* registers){

    /* This is a blank function pointer */
    void (*handler)(struct registers_state *registers);

    /* Find out if we have a custom handler to run for this
    *  IRQ, and then finally, run it */
    char ino_str[3];
    pocha_vga_draws(itoa(registers->int_no - 32, ino_str), pocha_vga_color(VGA_COLOR_Yellow, VGA_COLOR_LightRed), 0, 0);
    handler = irq_routines[registers->int_no - 32];
    if(handler){
        handler(registers);
    }
    else blank_handler(registers);

    /* If the IDT entry that was invoked was greater than 40
    *  (meaning IRQ8 - 15), then we need to send an EOI to
    *  the slave controller */
    if (registers->int_no >= 40){
        port_byte_out(0xA0, 0x20);
    }

    /* In either case, we need to send an EOI to the master
    *  interrupt controller too */
    port_byte_out(0x20, 0x20);
}

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Expected: 0 011 11 00
But 0x36: 0 011 01 10