* ADA(TM) for z80s - summary
@ 1982-11-05 6:29 presby!aron
1982-11-05 7:12 ` "What Is An LR1 Subset Of Ada" eagle!cw
0 siblings, 1 reply; 2+ messages in thread
From: presby!aron @ 1982-11-05 6:29 UTC (permalink / raw)
Here is a summary of responses on ADA for z80s. In next month's Creative
Computing there will be a review of two (unmentioned) ADA compilers - I'm
assuming they mean Janus and Supersoft. Anyone else with info, please
send to me. I'll post in a supplementary summary:
aron shtull-trauring
harpo!presby!aron
*****************************
I have examined the manuals for both. There is a third implementation around
but the company was honest enough to return my check until they had
something to show. If I had to pick today, knowing how incomplete both
available compilers are, I would probably pick Janus. The support seems
much better. They responded to my letter with a 2 page letter on their plans
and answered my letter point by point. The only point against them is that
they consider the Z80 version to be as complete as it will get: they are
considering bug fixes and minor enhancements only. The real work is happening
on the 8086 version for the IBM PC.
Hope this helps, good luck. /Ted
--------
*****************************
Check out Telesoft and Western Digital. I don't know what their plans
are, but they are the leading micro Ada producers. Also, look
in the Implementation Matrix in the Ada Letters.
Charles
*****************************
Hi,
I've got some friends here (Air Force Institute of Tech.) that have both
SuperSoft and Janus. The general consensus is that the SuperSoft version
stinks, and that Janus is very nice. I worked on an LR1 subset for a compiler
class 3 quarters ago, and ANY company that claims to have implemented the
whole package for a micro is either lying or has a micro with facilities that
most of us haven't heard of yet.
Doug
^ permalink raw reply [flat|nested] 2+ messages in thread
* "What Is An LR1 Subset Of Ada"
1982-11-05 6:29 ADA(TM) for z80s - summary presby!aron
@ 1982-11-05 7:12 ` eagle!cw
0 siblings, 0 replies; 2+ messages in thread
From: eagle!cw @ 1982-11-05 7:12 UTC (permalink / raw)
What is an "LR1 subset" of Ada? I have an LR(1) grammar that covers
all of Ada and Gerry Fisher published an LALR(1) grammar that does.
However, the class of the grammar has no effect on the size of the
language; there are minuscle languages with impossibly complex
grammars.
Also, some compilers for Ada are cross-compilers, of course. These
will likely fit the whole language onto the little machine because
only the runtime system must reside there. If you want the compiler
as well, you may need a shoehorn or multitudinous passes.
Charles
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