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Groups > comp.lang.forth > #45600
| From | "HAA" <someone@microsoft.com> |
|---|---|
| Newsgroups | comp.lang.forth |
| Subject | Re: How do you remember the stack? |
| Date | 2016-02-18 18:48 +1100 |
| Organization | Aioe.org NNTP Server |
| Message-ID | <na3t17$anv$1@gioia.aioe.org> (permalink) |
| References | <07ab86b1-3681-47c0-80ea-d7bd908925e7@googlegroups.com><87fuwxd1js.fsf@nightsong.com> <n9u1t3$bce$1@gioia.aioe.org><2016Feb16.082803@mips.complang.tuwien.ac.at> <jaCdnRZNtdRaSl_LnZ2dnUU7-YH46u6z@supernews.com> |
Elizabeth D. Rather wrote:
> On 2/15/16 9:28 PM, Anton Ertl wrote:
> > "HAA" <someone@microsoft.com> writes:
> ...
> >> So how do they handle multi-line definitions? In the same
> >> way as raw beginners - by jotting down stack effects as they go.
> >> These working comments are removed when the definition is complete.
> >
> > Maybe you work that way, I don't. When the stack work is complex
> > enough to write down stack pictures, I keep them. They then also help
> > in reading the code.
Very rarely do I see stack comments within the body of a definition.
> Yes. Never remove any kind of documentation, unless it is inaccurate (in
> which case it should be replaced with the correct comments).
Examples from a SwiftForth demo:
: G.WALL ( y x r c b -- y x' )
>R 2DUP R@ ?SQUARE IF
2DUP VISITED ?SQUARE IF
R@ ADJACENT VISITED ?SQUARE IF
BRUSH .BEEN @
ELSE BRUSH .OPEN @
THEN ELSE 2DROP BRUSH .OPEN @ THEN
ELSE 2DROP BRUSH .WALL @
THEN DRAW-ELEMENT R> DROP ;
: RELINK-MAZE ( a -- r c t | a f ) DUP >R FROM-BEGINNING
DUP >R CELL+ 2H@ DUP R@ 2 CELLS + 2+ H@ < NOT IF
DROP R@ 2 CELLS + H@ SWAP
1+ DUP R@ 3 CELLS + 2+ H@ < NOT IF
DROP R@ 3 CELLS + H@ SWAP R@ CELL+ 2H!
R> R> DROP FALSE EXIT
THEN SWAP THEN 2DUP 1+ R@ CELL+ 2H!
R> R> AT-END ! TRUE ;
Factors or not, writing such routines (I would think) requires more
than can easily be remembered yet there's nothing there to help the
programmer or reader. Either forth programmers have exceptional
memories - or they're taught by example any aids used during
writing should be removed afterwards.
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How do you remember the stack? laheadle@gmail.com - 2016-02-12 13:57 -0800
Re: How do you remember the stack? Paul Rubin <no.email@nospam.invalid> - 2016-02-12 14:08 -0800
Re: How do you remember the stack? "HAA" <someone@microsoft.com> - 2016-02-16 13:35 +1100
Re: How do you remember the stack? Julian Fondren <julian.fondren@gmail.com> - 2016-02-15 19:28 -0800
Re: How do you remember the stack? Whammo <sidciavic@gmail.com> - 2016-02-15 19:54 -0800
Re: How do you remember the stack? anton@mips.complang.tuwien.ac.at (Anton Ertl) - 2016-02-16 07:28 +0000
Re: How do you remember the stack? "Elizabeth D. Rather" <erather@forth.com> - 2016-02-15 22:03 -1000
Re: How do you remember the stack? anton@mips.complang.tuwien.ac.at (Anton Ertl) - 2016-02-16 13:30 +0000
Re: How do you remember the stack? "Elizabeth D. Rather" <erather@forth.com> - 2016-02-16 08:20 -1000
Re: How do you remember the stack? dunno <dunno@dunno.dunno> - 2016-02-16 20:48 +0000
Re: How do you remember the stack? anton@mips.complang.tuwien.ac.at (Anton Ertl) - 2016-02-17 15:42 +0000
Re: How do you remember the stack? "HAA" <someone@microsoft.com> - 2016-02-18 18:48 +1100
Re: How do you remember the stack? hughaguilar96@gmail.com - 2016-02-18 12:27 -0800
Re: How do you remember the stack? Julian Fondren <julian.fondren@gmail.com> - 2016-02-18 14:53 -0800
Re: How do you remember the stack? Julian Fondren <julian.fondren@gmail.com> - 2016-02-18 15:18 -0800
Re: How do you remember the stack? "HAA" <someone@microsoft.com> - 2016-02-21 13:32 +1100
Re: How do you remember the stack? Chris Curl <ccurl609@gmail.com> - 2016-02-20 20:57 -0800
Re: How do you remember the stack? Ron Aaron <rambamist@gmail.com> - 2016-02-21 07:23 +0200
Re: How do you remember the stack? Chris Curl <ccurl609@gmail.com> - 2016-02-21 08:54 -0800
Re: How do you remember the stack? hughaguilar96@gmail.com - 2016-02-21 22:05 -0800
Re: How do you remember the stack? Lars Brinkhoff <lars.spam@nocrew.org> - 2016-02-22 16:20 +0100
Re: How do you remember the stack? Andrew Haley <andrew29@littlepinkcloud.invalid> - 2016-02-22 09:47 -0600
Re: How do you remember the stack? Whammo <sidciavic@gmail.com> - 2016-02-23 16:51 -0800
Re: How do you remember the stack? "HAA" <someone@microsoft.com> - 2016-02-28 15:22 +1100
Re: How do you remember the stack? hughaguilar96@gmail.com - 2016-02-27 21:30 -0800
Re: How do you remember the stack? hughaguilar96@gmail.com - 2016-02-27 21:33 -0800
Re: How do you remember the stack? "Elizabeth D. Rather" <erather@forth.com> - 2016-02-27 21:39 -1000
Re: How do you remember the stack? "HAA" <someone@microsoft.com> - 2016-02-29 13:47 +1100
Re: How do you remember the stack? Paul Rubin <no.email@nospam.invalid> - 2016-02-28 19:02 -0800
Re: How do you remember the stack? Julian Fondren <julian.fondren@gmail.com> - 2016-02-28 22:26 -0800
Re: How do you remember the stack? Paul Rubin <no.email@nospam.invalid> - 2016-02-28 22:37 -0800
Re: How do you remember the stack? hughaguilar96@gmail.com - 2016-02-28 19:11 -0800
Re: How do you remember the stack? Andrew Haley <andrew29@littlepinkcloud.invalid> - 2016-02-29 11:55 -0600
Re: How do you remember the stack? "Elizabeth D. Rather" <erather@forth.com> - 2016-02-29 19:30 -1000
Re: How do you remember the stack? "HAA" <someone@microsoft.com> - 2016-03-02 00:49 +1100
Re: How do you remember the stack? "Elizabeth D. Rather" <erather@forth.com> - 2016-03-01 13:50 -1000
Re: How do you remember the stack? Paul Rubin <no.email@nospam.invalid> - 2016-03-01 16:49 -0800
Re: How do you remember the stack? hughaguilar96@gmail.com - 2016-03-01 18:04 -0800
Re: How do you remember the stack? Andrew Haley <andrew29@littlepinkcloud.invalid> - 2016-03-02 02:53 -0600
Re: How do you remember the stack? anton@mips.complang.tuwien.ac.at (Anton Ertl) - 2016-03-02 09:57 +0000
Re: How do you remember the stack? Pablo Hugo Reda <pabloreda@gmail.com> - 2016-03-02 03:21 -0800
Re: How do you remember the stack? anton@mips.complang.tuwien.ac.at (Anton Ertl) - 2016-03-02 11:49 +0000
Re: How do you remember the stack? Pablo Hugo Reda <pabloreda@gmail.com> - 2016-03-02 04:23 -0800
Re: How do you remember the stack? stephen@mpeforth.com (Stephen Pelc) - 2016-03-02 18:32 +0000
Re: How do you remember the stack? anton@mips.complang.tuwien.ac.at (Anton Ertl) - 2016-03-02 18:41 +0000
Re: How do you remember the stack? stephen@mpeforth.com (Stephen Pelc) - 2016-03-02 20:36 +0000
Re: How do you remember the stack? anton@mips.complang.tuwien.ac.at (Anton Ertl) - 2016-03-03 07:38 +0000
Re: How do you remember the stack? stephen@mpeforth.com (Stephen Pelc) - 2016-03-03 09:26 +0000
Re: How do you remember the stack? anton@mips.complang.tuwien.ac.at (Anton Ertl) - 2016-03-03 11:15 +0000
Re: How do you remember the stack? stephen@mpeforth.com (Stephen Pelc) - 2016-03-03 15:35 +0000
Re: How do you remember the stack? anton@mips.complang.tuwien.ac.at (Anton Ertl) - 2016-03-03 15:56 +0000
Re: How do you remember the stack? stephen@mpeforth.com (Stephen Pelc) - 2016-03-03 17:04 +0000
Re: How do you remember the stack? Whammo <sidciavic@gmail.com> - 2016-03-01 19:29 -0800
Re: How do you remember the stack? Albert van der Horst <albert@spenarnc.xs4all.nl> - 2016-02-28 18:52 +0000
Re: How do you remember the stack? Whammo <sidciavic@gmail.com> - 2016-02-28 13:30 -0800
Re: How do you remember the stack? Lars Brinkhoff <lars.spam@nocrew.org> - 2016-02-29 07:55 +0100
Re: How do you remember the stack? "Elizabeth D. Rather" <erather@forth.com> - 2016-02-29 19:34 -1000
Re: How do you remember the stack? hughaguilar96@gmail.com - 2016-03-01 20:40 -0800
Re: How do you remember the stack? Unknown <dog@gmail.com> - 2016-06-02 05:46 +0000
Re: How do you remember the stack? Lars Brinkhoff <lars.spam@nocrew.org> - 2016-06-02 08:48 +0200
Re: How do you remember the stack? hughaguilar96@gmail.com - 2016-06-02 00:17 -0700
Re: How do you remember the stack? Michael Barry <barrym95838@yahoo.com> - 2016-06-02 19:48 -0700
Re: How do you remember the stack? hughaguilar96@gmail.com - 2016-06-02 20:34 -0700
Re: How do you remember the stack? "WJ" <w_a_x_man@yahoo.com> - 2016-02-22 19:23 +0000
Re: How do you remember the stack? "HAA" <someone@microsoft.com> - 2016-02-25 20:31 +1100
Re: How do you remember the stack? Julian Fondren <julian.fondren@gmail.com> - 2016-02-25 07:44 -0800
Re: How do you remember the stack? Lars Brinkhoff <lars.spam@nocrew.org> - 2016-02-25 20:22 +0100
Re: How do you remember the stack? "HAA" <someone@microsoft.com> - 2016-02-28 13:43 +1100
Re: How do you remember the stack? "Elizabeth D. Rather" <erather@forth.com> - 2016-02-27 21:43 -1000
Re: How do you remember the stack? anton@mips.complang.tuwien.ac.at (Anton Ertl) - 2016-02-28 14:53 +0000
Re: How do you remember the stack? hughaguilar96@gmail.com - 2016-02-28 15:27 -0800
Re: How do you remember the stack? humptydumpty <ouatubi@gmail.com> - 2016-06-02 02:02 -0700
Re: How do you remember the stack? JennyB <jennybrien@googlemail.com> - 2016-06-03 05:57 -0700
Re: How do you remember the stack? Bernd Paysan <bernd.paysan@gmx.de> - 2016-03-01 16:38 +0000
Re: How do you remember the stack? Chris Curl <ccurl609@gmail.com> - 2016-02-12 16:31 -0800
Re: How do you remember the stack? Whammo <sidciavic@gmail.com> - 2016-02-12 17:31 -0800
Re: How do you remember the stack? Lars Brinkhoff <lars.spam@nocrew.org> - 2016-02-13 08:03 +0100
Re: How do you remember the stack? dunno <dunno@dunno.dunno> - 2016-02-13 08:06 +0000
Re: How do you remember the stack? minforth@arcor.de - 2016-02-13 01:50 -0800
Re: How do you remember the stack? mhx@iae.nl - 2016-02-13 03:22 -0800
Re: How do you remember the stack? Albert van der Horst <albert@spenarnc.xs4all.nl> - 2016-02-13 17:09 +0000
Re: How do you remember the stack? mhx@iae.nl - 2016-02-13 03:39 -0800
Re: How do you remember the stack? mhx@iae.nl - 2016-02-13 03:42 -0800
Re: How do you remember the stack? anton@mips.complang.tuwien.ac.at (Anton Ertl) - 2016-02-13 11:27 +0000
Re: How do you remember the stack? anton@mips.complang.tuwien.ac.at (Anton Ertl) - 2016-02-13 12:33 +0000
Re: How do you remember the stack? minforth@arcor.de - 2016-02-15 01:05 -0800
Re: How do you remember the stack? dunno <dunno@dunno.dunno> - 2016-02-14 19:34 +0000
Re: How do you remember the stack? Julian Fondren <julian.fondren@gmail.com> - 2016-02-13 06:43 -0800
Re: How do you remember the stack? minforth@arcor.de - 2016-02-15 01:22 -0800
Re: How do you remember the stack? dunno <dunno@dunno.dunno> - 2016-02-15 09:48 +0000
Re: How do you remember the stack? anton@mips.complang.tuwien.ac.at (Anton Ertl) - 2016-02-15 09:53 +0000
Re: How do you remember the stack? Albert van der Horst <albert@spenarnc.xs4all.nl> - 2016-02-15 11:26 +0000
Re: How do you remember the stack? minforth@arcor.de - 2016-02-15 04:53 -0800
Re: How do you remember the stack? dunno <dunno@dunno.dunno> - 2016-02-15 17:06 +0000
Re: How do you remember the stack? anton@mips.complang.tuwien.ac.at (Anton Ertl) - 2016-02-16 14:57 +0000
Re: How do you remember the stack? anton@mips.complang.tuwien.ac.at (Anton Ertl) - 2016-02-16 14:14 +0000
Re: How do you remember the stack? Ron Aaron <rambamist@gmail.com> - 2016-02-15 12:31 +0200
Re: How do you remember the stack? Jan Coombs <jenfhaomndgfwutc@murmic.plus.com> - 2016-02-18 22:53 +0000
Re: How do you remember the stack? Doug Hoffman <glidedog@gmail.com> - 2016-02-13 10:51 -0500
Re: How do you remember the stack? "HAA" <someone@microsoft.com> - 2016-02-14 10:18 +1100
Re: How do you remember the stack? Andrew Haley <andrew29@littlepinkcloud.invalid> - 2016-02-14 04:21 -0600
Re: How do you remember the stack? Whammo <sidciavic@gmail.com> - 2016-02-20 14:36 -0800
Re: How do you remember the stack? anton@mips.complang.tuwien.ac.at (Anton Ertl) - 2016-02-21 16:35 +0000
Re: How do you remember the stack? Albert van der Horst <albert@spenarnc.xs4all.nl> - 2016-02-21 18:34 +0000
Re: How do you remember the stack? anton@mips.complang.tuwien.ac.at (Anton Ertl) - 2016-02-22 09:52 +0000
Re: How do you remember the stack? Albert van der Horst <albert@spenarnc.xs4all.nl> - 2016-02-22 13:07 +0000
Re: How do you remember the stack? anton@mips.complang.tuwien.ac.at (Anton Ertl) - 2016-02-22 15:41 +0000
Re: How do you remember the stack? "Elizabeth D. Rather" <erather@forth.com> - 2016-02-22 08:24 -1000
Re: How do you remember the stack? "Elizabeth D. Rather" <erather@forth.com> - 2016-02-22 08:21 -1000
Re: How do you remember the stack? hughaguilar96@gmail.com - 2016-02-22 17:51 -0800
Re: How do you remember the stack? hughaguilar96@gmail.com - 2016-02-22 18:15 -0800
Re: How do you remember the stack? "WJ" <w_a_x_man@yahoo.com> - 2016-02-29 06:20 +0000
Re: How do you remember the stack? "WJ" <w_a_x_man@yahoo.com> - 2016-03-02 20:42 +0000
Re: How do you remember the stack? "WJ" <w_a_x_man@yahoo.com> - 2016-06-02 20:13 +0000
Re: How do you remember the stack? humptydumpty <ouatubi@gmail.com> - 2016-02-22 01:46 -0800
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