andxCommand = (byte)0xFF;
            andx = null;
        } else if( andx == null ) {
            andxCommand = (byte)0xFF;
            throw new RuntimeException( "no andx command supplied with response" );
        } else {

            /*
             * Set bufferIndex according to andxOffset
             */

            bufferIndex = headerStart + andxOffset;

            this.andx = null;
        }
        else if ( this.andx == null ) {
            this.andxCommand = (byte) 0xFF;
            throw new RuntimeCIFSException("no andx command supplied with response");
        }
        else {

            /*
             * Set bufferIndex according to andxOffset
             */

            bufferIndex = this.headerStart + this.andxOffset;