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MC3020
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**MC3020** is an IC that outputs a high if and only if the first two inputs are not the same. As of alpha 3: any two inputs are accepted. If three
are given, the last (input 3) is ignored. If only one is given, IC retains state.

Equivalent Perlstone script: ``AB^r``


Truth Table
===========

=  =  ======
A  B  Output
=  =  ======
0  0  0
1  0  1
0  1  1
1  1  0
=  =  ======


Sign Lines
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1. XOR
2. [MC3020]
3. Blank
4. Blank


IC Pins
=======


Inputs
------

- The XOR Operand

Outputs
-------

- Outputs high if the inputs are not equal


Permissions
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Node                     Description                                  Default Role 
======================== ============================================ ============
craftbook.ic.safe.mc3020 Allows creation of the Xor Gate (MC3020) IC. user         
======================== ============================================ ============