Re: Weird /KERNAL line on old boards

From: Jim Brain <brain_at_jbrain.com>
Date: Sun, 8 Jul 2018 00:48:29 -0500
Message-ID: <9dcf81e6-770b-cf38-3913-4c6ae9a64a2c@jbrain.com>
It's probably because the PLA combinatorial logic is not registered.  If 
one path is faster (or the inputs are faster), the output can cycle 
through some invalid states as the inputs settle.

The larger PLA might register the outputs, not sure.

I am just trying to think of a way you could overcome this.  I am 
wondering if you can use a specific address of KERNAL ROM as the 
trigger, like $ffff

Jim
Received on 2018-07-08 08:00:04

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