led matrix scroll

#include <WEMOS_Matrix_LED.h>

byte nums[] =
{
  B11100000, //-- 0
  B10100000,
  B10100000,
  B10100000,
  B10100000,
  B10100000,
  B10100000,
  B11100000,
  B00100000, //-- 1
  B00100000,
  B01100000,
  B00100000,
  B00100000,
  B00100000,
  B00100000,
  B00100000,
  B11100000, //-- 2
  B00100000,
  B00100000,
  B11100000,
  B10000000,
  B10000000,
  B10000000,
  B11100000,
  B11100000, //-- 3
  B00100000,
  B00100000,
  B11100000,
  B00100000,
  B00100000,
  B00100000,
  B11100000,
  B10100000, //-- 4
  B10100000,
  B10100000,
  B11100000,
  B00100000,
  B00100000,
  B00100000,
  B00100000,
  B11100000, //-- 5
  B10000000,
  B10000000,
  B11100000,
  B00100000,
  B00100000,
  B00100000,
  B11100000,
  B11100000, //-- 6
  B10000000,
  B10000000,
  B11100000,
  B10100000,
  B10100000,
  B10100000,
  B11100000,
  B11100000, //-- 7
  B00100000,
  B00100000,
  B00100000,
  B00100000,
  B00100000,
  B00100000,
  B00100000,
  B11100000, //-- 8
  B10100000,
  B10100000,
  B11100000,
  B10100000,
  B10100000,
  B10100000,
  B11100000,
  B11100000, //-- 9
  B10100000,
  B10100000,
  B11100000,
  B00100000,
  B00100000,
  B00100000,
  B11100000
};

byte workbyte[] =
{
  B00000000,
  B00000000,
  B00000000,
  B00000000,
  B00000000,
  B00000000,
  B00000000,
  B00000000
};

byte matrix[] =
{
  B00000000,
  B00000000,
  B00000000,
  B00000000,
  B00000000,
  B00000000,
  B00000000,
  B00000000
};
byte d = B00000000;
byte charlength = 4;
int firstNum = 0;
int maxRight = 11;
int nChars = 2;

MLED mled(1); //set intensity=5

void setup()
{
  Serial.begin(9600);
  mled.clear();
}

void loop()
{
  int sh = 7; //-- shit right
  int shl = 0;//-- shift left

  charByte(firstNum);

  for(int x = 0; x < maxRight; x++)
  {
    for(int y = 0; y < 8; y++)
    {
      d = workbyte[y];

      if(sh < 0)
        d = d << shl;
      else
        d = d >> sh;

      matrix[y] = d;
    }

    for(int y = 0; y < 8; y++)
    {
      mled.disBuffer[y] = matrix[y];
    }

    mled.display();
    delay(70);

    if(x % 5 == 0)
    {
      //-- zde by me nabehnout druhy znak
    }

    sh--;
    if(sh < 0)
      shl++;

  }

  firstNum++;
  if(firstNum > (sizeof(nums) / 8) - 1 )
    firstNum = 0;

}

void charByte(int nChar)
{
  int x = 0;
  for(int y = (nChar * 8); y < (nChar * 8) + 8; y++)
  {
    workbyte[x] = nums[y];
    x++;
  }
}