==== GetCellBit ====

Helper function to read the state of a single bit in a cell.

=== Description ===

<code>GetCellBit( value, bitno )</code>

Get the state of a single bit in the cell value

=== Parameters ===

| ''value'' | 32-bit cell value |
| ''bitno'' | The bit number (0-indexed) |

=== Return value ===

Returns the state of the bit (1 or 0)

=== Example usage ===

<code javascript>    
   new value = 9;  // (9 = binary 1001)
   new b;
   
   b = GetBit( value, 3 );

   // b is now 1
</code>