/**
 * Copyright (c) 2022 Dominic Masters
 * 
 * This software is released under the MIT License.
 * https://opensource.org/licenses/MIT
 */

#include "interrupts.h"

void interruptOnScanline() {
  if(LYC_REG == 0) {
    LCDC_REG |= LCDCF_BG8000;
    if((TEXTBOX_STATE & TEXTBOX_STATE_VISIBLE) != 0) {
      LYC_REG = INTERRUPT_TEXTBOX_VRAM;
    }
  } else if(LYC_REG == INTERRUPT_TEXTBOX_VRAM) {
    LCDC_REG &= ~LCDCF_BG8000;
    LYC_REG = 0;
  }
}