sci2c arduino updated

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diff --git a/2.3-1/macros/Hardware/AVR/AVRDigitalIn.sci b/2.3-1/macros/Hardware/AVR/AVRDigitalIn.sci
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+// Copyright (C) 2017 - IIT Bombay - FOSSEE
+//
+// This file must be used under the terms of the CeCILL.
+// This source file is licensed as described in the file COPYING, which
+// you should have received as part of this distribution.  The terms
+// are also available at
+// http://www.cecill.info/licences/Licence_CeCILL_V2-en.txt
+// Organization: FOSSEE, IIT Bombay
+// Email: toolbox@scilab.in
+
+
+function state = AVRDigitalIn(port,pin)
+// Function to get state (high\low) of a digital input pin on AVR
+//
+// Calling Sequence
+//     state=AVRDigitalIn(port,pin)
+//
+// Parameters
+//     port : port of microcontroller to be used
+//     pin : pin of port (mentioned above) to be used
+//   Returns  
+//     state : state of an input pin (HIGH\LOW)
+//
+// Description
+//     Each AVR microcontroller has pins which can be configured as digital
+//     inputs. These are normally divided among some 'ports' (group of pins).
+//     User has to select one of these port and which pin of that port as 
+//     digital input.      
+//
+// Examples
+//     pinA0 = AVRDigitalIn(1,0)   //To read state on pin 0 of port A
+//
+// See also
+//     AVRDigitalOut AVRDigitalSetup
+//
+//
+// Authors
+//     Siddhesh Wani Ashish Kamble
+//
+// This is curretly dummy function. It provides no functionality but is required 
+// for providing support for generating C code for AVR.
+
+if((port==0)|(port>=5)) then 
+disp("Error : Inavalid input argument ''port'' in AVRDigitalIn function.");
+end
+if(pin>=8) then 
+disp("Error : Inavalid input argument ''pin'' in AVRDigitalIn function.");
+end
+state = 0;
+endfunction