Cascading Max7219

Yes, it's not quite right. It should stop after row 7. I think what you want is:

row 0 64 1
val 0 0
val 0 0
val 0 1
val 0 1
val 0 2
val 0 2
val 0 3
val 0 3
row 1 64 1
val 1 3
val 1 35
val 1 67
val 1 99
val 1 131
val 1 163
val 1 195
val 1 227
row 2 64 1
val 2 0
val 2 0
val 2 1
val 2 1
val 2 2
val 2 2
val 2 3
val 2 3
row 3 64 1
val 3 11
val 3 43
val 3 75
val 3 107
val 3 139
val 3 171
val 3 203
val 3 235
row 4 64 1
val 4 0
val 4 0
val 4 1
val 4 1
val 4 2
val 4 2
val 4 3
val 4 3
row 5 64 1
val 5 19
val 5 51
val 5 83
val 5 115
val 5 147
val 5 179
val 5 211
val 5 243
row 6 64 1
val 6 0
val 6 0
val 6 1
val 6 1
val 6 2
val 6 2
val 6 3
val 6 3
row 7 64 1
val 7 27
val 7 59
val 7 91
val 7 123
val 7 155
val 7 187
val 7 219
val 7 251

Try:

    raw2 : function(val) {
      digitalWrite(cs,0);
      spi.send ([0x9,0]); // output raw data
      digitalWrite(cs,1);
      for (var row=0;row<8;row++) {
        print ("row " + row + " " + val.length + " " + (row<val.length&7));
        digitalWrite(cs,0);
        for (var i=row;i<val.length;i+=8) {
          spi.send([row,val[i]]);
          print ("val " + row + " " + val[i]);
        }
        spi.send([0x0C,1]); // no shutdown
        digitalWrite(cs,1);
      }
    },