code: function( address, bank, size ) {
  		var offset = bank * size,
  			bankData = this.chrData.subarray( offset, offset + size );
  
  		this.chrRead.set( bankData, address );
  	}
docs: Load a CHR Bank at a specific addres.
  @param {number} address - The absolute address to load bank at (eg. 0x8000).
  @param {bank} bank - Index of bank to load at given address.
  @param {size} size - Size of all banks.