Programmable Logic Array

What is the circuit diagram for a Programmable Logic Array (PLA)?
The circuit diagram for a PLA is:
Programmable Logic Array.png

Programmable Array Logic (PAL)

What is the circuit diagram for Programmable Array Logic (PAL)?
The circuit diagram for PAL is:
Programmable Array Logic.png

What can't be changed in Programmable Array Logic (PAL)?
In PAL, OR gates can't be changed.

PAL Data rerouting

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