HX03W bootloader LCD code

void LCD_Init(void)

{
  GPIO_CfgPinOutput(5);
  GPIO_CfgPinOutput(6);
  GPIO_CfgPinOutput(0x1d);
  GPIO_CfgPinOutput(0x10);
  _DAT_5000050c = 0x10000; /* clear D16 */
  GPIO_ConfOutput4_28();
  D4_PulseZero50ms();
  SPILCD_SendCMD(0xae);
  SPILCD_SendCMD(0);
  SPILCD_SendCMD(0x10);
  SPILCD_SendCMD(0xb0);
  SPILCD_SendCMD(0x81);
  SPILCD_SendCMD(0x14);
  SPILCD_SendCMD(0x20);
  SPILCD_SendCMD(0xa0);
  SPILCD_SendCMD(0xc0);
  SPILCD_SendCMD(0xa4);
  SPILCD_SendCMD(0xa6);
  SPILCD_SendCMD(0xa8);
  SPILCD_SendCMD(0x3f);
  SPILCD_SendCMD(0xd3);
  SPILCD_SendCMD(0x60);
  SPILCD_SendCMD(0xd5);
  SPILCD_SendCMD(0x51);
  SPILCD_SendCMD(0xd9);
  SPILCD_SendCMD(0x22);
  SPILCD_SendCMD(0xdb);
  SPILCD_SendCMD(0x35);
  SPILCD_SendCMD(0xad);
  SPILCD_SendCMD(0x81);
  SPILCD_SendCMD(0xaf);
  memclear(&LCD_Buffer,0x400);
  LCD_Fill(0);
  return;
}


void LCD_Fill(undefined4 value)

{
  byte page;
  byte col;
  
  page = 0;
  do {
    SPILCD_SendCMD((uint)(byte)(page + 0xb0));
    SPILCD_SendCMD(0);
    SPILCD_SendCMD(0x10);
    col = 0;
    do {
      SPI_SendData(value);
      col = col + 1;
    } while (col < 0x40);
    page = page + 1;
  } while (page < 0x10);
  return;
}

void LCD_ShowArrow(void)

{
  byte *pbVar1;
  byte pageNo;
  byte col;
  int iVar2;
  
  ClearFrame();
  FUN_0007877c(0x14,0x3c,&DAT_0007d186,0x19,0x38,0,0,0x19,0x38);
  iVar2 = 0x1c0;
  pageNo = 7; // start on page 7 - only bottom half pages 7 to 15
  do {
    SPILCD_SendCMD((uint)(byte)(pageNo + 0xb0));
    SPILCD_SendCMD(0);
    SPILCD_SendCMD(0x10);
    col = 0;
    do {
      pbVar1 = &LCD_Buffer + iVar2;
      iVar2 = iVar2 + 1;
      SPI_SendData((uint)*pbVar1);
      col = col + 1;
    } while (col < 0x40);
    pageNo = pageNo + 1;
  } while (pageNo < 0x10);
  return;
}