code: private boolean isABI() {
  		char ABI[] = new char[4];
  
  		for (int i = 0; i <= 2; i++) {
  			ABI[i] = (char) traceData[i];
  		}
  		if (ABI[0] == 'A' && (ABI[1] == 'B' && ABI[2] == 'I')) {
  			return true;
  		} else {
  			for (int i = 128; i <= 130; i++) {
  				ABI[i-128] = (char) traceData[i];
  			}
  			if (ABI[0] == 'A' && (ABI[1] == 'B' && ABI[2] == 'I')) {
  				macJunk = 128;
  				return true;
  			} else
  				return false;
  		}
  	}
docs: Test to see if the file is ABI format by checking to see that the first three bytes
  are "ABI". Also handle the special case where 128 bytes were prepended to the file
  due to binary FTP from an older macintosh system.
  
  @return - if format of ABI file is correct