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5 - Forth Interest Group

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Figure Nine. I<br />

\ 0OFNEWST.FTH 910818 rwb<br />

\ MESSAGE r> head +!<br />

else<br />

abort" Stack Empty!"<br />

then ;<br />

dard, and became a de fmto<br />

standard itself.<br />

The question is really<br />

whether the ANS standard<br />

will be an attractive proposi-<br />

tion to users and implement-<br />

ors. I should think it might<br />

be, given the background<br />

and caliber of people work-<br />

ing on the committee. I am<br />

going to try to obtain a dpANS<br />

document whenever it be-<br />

comes available to the gen-<br />

eral public.<br />

From: John Wavrik<br />

Subject: Traditional <strong>Forth</strong><br />

Elizabeth Rather writes,<br />

"Traditional <strong>Forth</strong>, for<br />

example, allows the user<br />

to know and make use of<br />

knowledge of what is<br />

'compiled' (or, more ac-<br />

curately, assembled)--<br />

and to exercise total con-<br />

trol over the process.<br />

"Hogwash! What on earth<br />

is this 'traditional <strong>Forth</strong>,'<br />

and what did it 'compile<br />

or assemble'? Did it as-<br />

semble the same thing on<br />

a 6502 as it did on a PDP-<br />

11? If so, how did it run?<br />

And if not, how could the<br />

user 'know and make use<br />

of' that knowledge in a<br />

transportable fashion?'"<br />

To describe what I call<br />

traditional <strong>Forth</strong>, perhaps it<br />

would be wise to repeat the<br />

major texts I have used in<br />

teaching <strong>Forth</strong> (I am not going<br />

back to Kitt Peak Primer<br />

and the various manuals,<br />

<strong>Forth</strong> Dimensions articles,<br />

etc. that I used to actually<br />

learn the languagejust the<br />

printed works that I feel describe<br />

what I am calling traditional<br />

<strong>Forth</strong>):<br />

1. Starting ForCh by Leo<br />

Brodie (published by<br />

<strong>Forth</strong>, Inc!!!)<br />

2. minking <strong>Forth</strong> by Leo<br />

Brodie<br />

3. <strong>Forth</strong>: A Tm and Reference<br />

by Kelly & Spies<br />

I should also list the sys-<br />

tems I have used over the<br />

years, all ofwhich have been<br />

reasonably consistent with<br />

the description of <strong>Forth</strong> given<br />

<strong>Forth</strong> Dimensions 3 1 January 1992 February

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