GAL Programming

snipped-for-privacy@gmail.com scrobe on the papyrus:

.E is probably enable (I think it should be .OE) .R is R input of SR-type output flip-flop .T is T input of toggle output flip-flop

Language is ABEL although I haven't used it for more than 20 years!!!

HTH

John B scrobe on the papyrus:

No, I take that back about the language. It's not ABEL as the comment delimiters are wrong. ABEL uses '"' or '//'. It's not CUPL as that uses the standard 'C' comment delimiters of '/*' & '*/'. So I'm afraid I don't know.

However, I do know that it's May Day and the workers are revolting. >:-}

Courtesy of Mel Brooks: http://66.102.9.104/search?q=cache:V5hduqfu7TUJ:en.wikipedia.org/wiki/Mel_Brooks+*-*-*-*-*-*-are-revolting+King-Louis-XVI-*-*-Mel-Brooks-*-*-*-*-*-*-*-*-*-*

In article , wrote: [....]

Altera's AHDL pops to mind here. Based on this and assuming a bunch of other stuff:

XXXX.T would be an input that enables the toggling of a flip-flop XXXX.E would be an output enable XXXX.R wourl be a reset

The XXXXX.Y=12, YYYYY.Z=13 like statements are giving pin numbers for signals I think.

schreef in bericht news: snipped-for-privacy@u72g2000cwu.googlegroups.com...

Hmm... The language does't look familiar but combining my knowledge of other languages with the GAL20V8 specifications I'd say the first part is binding signal names to output pins, the other part specifies the output pins to be enabled except for MFF.R which is said to be used only internally by the comment. Maybe I can say more when reading the whole program.

petrus bitbyter

other

binding

be

~~~~~~~~~~~~~~~~~~~~~~~~~

This is ABEL code. (try a Clusty or Google search for a manual)

(from foggy memory:...)

Dennis

"Barbarian" schreef in bericht news:CdY5g.72093$ snipped-for-privacy@newssvr13.news.prodigy.com...

Dennis,

Sounds reasonable. I did not use ABEL except for occasional modifications. Nevertheless I wonder why [label].r and [label].t are used. A GAL20V8 has no internal latches defined although you can program some of course. Besides, the signal names are used for output pins. That's why I asked for the whole program which would make things clear (I think).

petrus bitbyter

Hello all,

Thanks for all the help. I've contacted the author and it turns out that it's not actually a language! It's just a description in pseudo code! D'oh!

I'll ask him what the t's and r's mean given that "GAL20V8 has no internal latches".

Gareth