HP9816 PAL16L8

[Paul Birkel]

>-----Original Message-----
>From: cctalk [mailto:cctalk-bounces at classiccmp.org] On Behalf Of Chuck Guzis via cctalk
>Sent: Tuesday, June 11, 2019 12:19 AM
>To: Tony Duell via cctalk
>Subject: Re: HP9816 PAL16L8
>
>On 6/10/19 8:44 PM, Tony Duell via cctalk wrote:
>
>> You can detect sequential logic in the PAL by :
>> 
>> For each combination of inputs :
>>    Read the outputs
>>      Toggle an input (change from 0 to 1 and back again or vice versa)
>>      Compare the outputs to what they were before -- if they have
>> changed then there's a sequential function on that input
>>      Check the next input
>>   Check the next combination of inputs
>
>For purely combinatorial PLDs, see my blog entry on the subject over at
>vcfed.org; I did the work to clone a few PALs some years ago and
>documented the process.

http://www.vcfed.org/forum/entry.php?330-Cloning-a-PAL-HAL-Part-13 
http://www.vcfed.org/forum/entry.php?329-Cloning-a-HAL-PAL-Part-12-The-Trantor-T130B-memory-PAL 
http://www.vcfed.org/forum/entry.php?328-Cloning-a-HAL-PAL-Part-11 
http://www.vcfed.org/forum/entry.php?327-Cloning-a-HAL-PAL-Part-10 
http://www.vcfed.org/forum/entry.php?326-Cloning-a-HAL-PAL-Part-9 
http://www.vcfed.org/forum/entry.php?325-Cloning-a-PAL-HAL-Part-8 
http://www.vcfed.org/forum/entry.php?321-Cloning-a-PAL-HAL-(Part-7) 
http://www.vcfed.org/forum/entry.php?320-Cloning-a-PAL-HAL-(Part-6) 
http://www.vcfed.org/forum/entry.php?319-Cloning-a-PAL-HAL-(Part-5) 
http://www.vcfed.org/forum/entry.php?318-Cloning-a-PAL-HAL-(Part-4) 
http://www.vcfed.org/forum/entry.php?316-Cloning-a-PAL-HAL-(Part-3) 
http://www.vcfed.org/forum/entry.php?315-Cloning-a-PAL-HAL-(Part-2) 
http://www.vcfed.org/forum/entry.php?314-Cloning-a-PAL-HAL-(Part-1) 

A nice read.  When does the article/book get self-published :->?

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paul