How do I use variables in functions/procedures

[gcjr]

@matelot

this is the whole thing, still not finished, I would like to replace all the lines

   0: ________  ________  __*_____  ________  ________  
   1: ________  ________  ___*____  ________  ________  
   2: ________  ________  ____*___  ________  ________  
   3: ________  ________  _____*__  ________  ________  
   4: ________  ________  ______*_  ________  ________  
   5: ________  ________  _______*  ________  ________  
   6: ________  ________  ________  ________  *_______  
   7: ________  ________  ________  ________  _*______  
   8: ________  ________  ________  ________  __*_____  
   9: ________  ________  ________  ________  ___*____  
  10: ________  ________  ________  ________  ____*___  
  11: ________  ________  ________  ________  _____*__  
  12: ________  __*_____  ________  ________  ________  
  13: ________  ___*____  ________  ________  ________  
  14: ________  ________  ________  ________  ______*_  
  15: ________  ________  ________  ________  _______*  
  16: ________  ________  ________  *_______  ________  
  17: ________  ________  ________  _*______  ________  
  18: ________  ____*___  ________  ________  ________  
  19: ________  _____*__  ________  ________  ________  
  20: ________  ______*_  ________  ________  ________  
  21: ________  _______*  ________  ________  ________  
  22: ________  ________  ________  __*_____  ________  
  23: ________  ________  ________  ___*____  ________  
  24: ________  ________  ________  ____*___  ________  
  25: ________  ________  ________  _____*__  ________  
  26: *_______  ________  ________  ________  ________  
  27: _*______  ________  ________  ________  ________  
  28: __*_____  ________  ________  ________  ________  
  29: ___*____  ________  ________  ________  ________  
  30: ________  ________  ________  ______*_  ________  
  31: ________  ________  ________  _______*  ________  
  32: ________  ________  *_______  ________  ________  
  33: ________  ________  _*______  ________  ________  
  34: ____*___  ________  ________  ________  ________  
  35: _____*__  ________  ________  ________  ________  

const int L = 5;
byte leds [][L] = {
    {0, 0, 4, 0, 0},
    {0, 0, 8, 0, 0},
    {0, 0, 16, 0, 0},
    {0, 0, 32, 0, 0},
    {0, 0, 64, 0, 0},
    {0, 0, 128, 0, 0},
    {0, 0, 0, 0, 1},
    {0, 0, 0, 0, 2},
    {0, 0, 0, 0, 4},
    {0, 0, 0, 0, 8},
    {0, 0, 0, 0, 16},
    {0, 0, 0, 0, 32},
    {0, 4, 0, 0, 0},
    {0, 8, 0, 0, 0},
    {0, 0, 0, 0, 64},
    {0, 0, 0, 0, 128},
    {0, 0, 0, 1, 0},
    {0, 0, 0, 2, 0},
    {0, 16, 0, 0, 0},
    {0, 32, 0, 0, 0},
    {0, 64, 0, 0, 0},
    {0, 128, 0, 0, 0},
    {0, 0, 0, 4, 0},
    {0, 0, 0, 8, 0},
    {0, 0, 0, 16, 0},
    {0, 0, 0, 32, 0},
    {1, 0, 0, 0, 0},
    {2, 0, 0, 0, 0},
    {4, 0, 0, 0, 0},
    {8, 0, 0, 0, 0},
    {0, 0, 0, 64, 0},
    {0, 0, 0, 128, 0},
    {0, 0, 1, 0, 0},
    {0, 0, 2, 0, 0},
    {16, 0, 0, 0, 0},
    {32, 0, 0, 0, 0},
};
const int Nled = sizeof(leds)/L;

char s [90];

// -----------------------------------------------------------------------------
void dispVertical (
    int n )
{
    for (int b = 0; b < 8; b++)  {
        for (int l = 0; l < L; l++)  {
            char c = '_';
            if (leds [n][l] & 1 << b)
                c = '*';
            Serial.print (c);
        }
        Serial.println ();
    }
    Serial.println ();
}

// ---------------------------------------------------------
void dispHorizontal (
    int n )
{
    for (int l = 0; l < L; l++)  {
        for (int b = 0; b < 8; b++)  {
            char c = '_';
            if (leds [n][l] & 1 << b)
                c = '*';
            Serial.print (c);
        }
        Serial.println ();
    }
    Serial.println ();
}

// ---------------------------------------------------------
void dispLine (
    int n )
{
#if (1)
    sprintf (s, "  %2d: ", n);
    Serial.print (s);
#endif

    for (int l = 0; l < L; l++)  {
        for (int b = 0; b < 8; b++)  {
            char c = '_';
            if (leds [n][l] & 1 << b)
                c = '*';
            Serial.print (c);
        }
        Serial.print ("  ");
    }
    Serial.println ();
}

// -----------------------------------------------------------------------------
void setup ()
{
    Serial.begin (9600);

    for (int n = 0; n <Nled; n++)
        dispLine (n);
}

// -----------------------------------------------------------------------------
void loop ()
{
}

values wouldbe easier if specifed as hex 0xA5 or binary, B10100101