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| XILINX APPLICATIONS NOTE XAPP026V-V1.00                    BN-4-4-94  |
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README file for the XC3000A Multiplexer/Barrel Shifter:
=======================================================

Note: A more detailed description of this application can be found in
Section 8 of the Xilinx Data Book.

Files included in XAPP026V.ZIP:
-------------------------------
  
  README          This readme file
  SYM\4MUX.1      1-bit 4:1 mux macro
  SYM\8MUX.1      1-bit 8:1 mux macro
  SYM\16MUX.1     1-bit 16:1 mux macro
  SYM\DUAL4MUX.1  2-bit pipelined 4:1 mux macro
  SYM\4SHIFTER.1  4-bit barrel-shifter macro
  SYM\8SHIFTER.1  8-bit barrel-shifter macro
  SYM\16SHFT.1    16-bit barrel-shifter macro
  SCH\            Schematic directory for the above macros   

This XAPP file contains all the macros necessary to construct the circuits
described in XAPP026. The 16-bit barrel shifter, 16SHFT, uses the macro 
DUAL4BIT. Both macros should be copied when using the barrel shifter. 

Software Versions used:

  DS390 Version 4.1.3a Viewlogic and Interface

