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ABEL: Advanced Boolean Equation Language, one of the three commonly used hardware description languages (ABEL, VHDL, Verilog). Use it to describe logic functions, which is convenient for designers to use PLD (compilable logic devices) to implement function functions.

The ABEL program is a text file containing some elements:

×Documents, including program names and comments

×Identification of input and output of logic function

×Statement used to specify the logic function to be implemented

×Type description of PLD or other target devices implementing logic function

× Used to specify the “test vector” that the logic function expects to output under certain input conditions.


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