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Groups > comp.lang.forth > #53464
| From | Jan Coombs <jenfhaomndgfwutc@murmic.plus.com> |
|---|---|
| Newsgroups | comp.lang.forth |
| Subject | Re: f.) for Gorth - what is a number? |
| Date | 2016-12-21 09:04 +0000 |
| Organization | A noiseless patient Spider |
| Message-ID | <20161221090412.6370626c@t530.lan> (permalink) |
| References | (6 earlier) <o39g4u$n27$1@dont-email.me> <932bc6cf-7c0b-4e88-af6f-aea4186f747d@googlegroups.com> <7846c510-224b-4780-897b-d31ce7a5ac09@googlegroups.com> <o3aov6$f28$1@dont-email.me> <d45ba0be-dd8b-413e-8a78-ff9a428a4fed@googlegroups.com> |
On Tue, 20 Dec 2016 18:05:03 -0800 (PST) hughaguilar96@gmail.com wrote: > It takes a while to get comfortable with a design for Straight > Forth. Recently I began to wonder if my definition of a > "number" was good. I have three possibilities for what a > "number" is (a "number" is what + - * / etc. act on): > > A.) A number is a 64-bit fixed-point value with an assumed > unity of 2^32 (also, we have mixed-precision functions such as > */ that use an intermediate value which is 128-bit with an > assumed unity of 2^64) --- this would require the data-stack > to be 8 bytes wide. > > B.) A number is a double-precision IEEE-754 float --- this > would require the data-stack to be 8 bytes wide. > > C.) A number is a pair of 64-bit integers, which are the > numerator and denominator --- this would require the > data-stack to be 16 bytes wide. > > I would like to get some input from the Forth community on > questions such as this --- I am personally okay with any of > the three definitions of "number" --- I would prefer to have > some consensus on the question though, rather than impose my > own opinion on everybody by fiat. If you tag items and make them variable length you can save significant power by reducing memory traffic. Stack languages have a great advantage here, in that the stack need not be indexed or accessed outside the top few items. All three of the above approaches could benefit from this, for example, C.) might only require two bytes for small integers and simple fractions. If you design the hardware, then A.), B.), and BigNums could be combined into the single unum data type [1][2]. > So, what is your opinion? What is a number? It would be good to see the end of 'f~' and other complexities inflicted by the current float format, and have all simple numeric data types combined into one single type, unum. Jan Coombs -- [1] good old summary, many links: https://github.com/tbreloff/Unums.jl/wiki/Unum-Summary-(in-progress) [2] slide show: http://www.johngustafson.net/presentations/Right-SizingPrecision1.pdf
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f.) for Gorth josv@planet.nl - 2016-12-06 03:40 -0800
Re: f.) for Gorth albert@cherry.spenarnc.xs4all.nl (Albert van der Horst) - 2016-12-06 15:48 +0100
Re: f.) for Gorth anton@mips.complang.tuwien.ac.at (Anton Ertl) - 2016-12-06 17:59 +0000
Re: f.) for Gorth josv@planet.nl - 2016-12-06 13:17 -0800
Re: f.) for Gorth anton@mips.complang.tuwien.ac.at (Anton Ertl) - 2016-12-07 11:11 +0000
Re: f.) for Gorth Julian Fondren <julian.fondren@gmail.com> - 2016-12-07 06:11 -0800
Re: f.) for Gorth anton@mips.complang.tuwien.ac.at (Anton Ertl) - 2016-12-07 17:50 +0000
Re: f.) for Gorth albert@cherry.spenarnc.xs4all.nl (Albert van der Horst) - 2016-12-07 15:23 +0100
Re: f.) for Gorth anton@mips.complang.tuwien.ac.at (Anton Ertl) - 2016-12-08 16:18 +0000
Re: f.) for Gorth josv@planet.nl - 2016-12-07 06:46 -0800
Re: f.) for Gorth anton@mips.complang.tuwien.ac.at (Anton Ertl) - 2016-12-07 17:41 +0000
Re: f.) for Gorth hughaguilar96@gmail.com - 2016-12-06 10:34 -0800
Re: f.) for Gorth josv@planet.nl - 2016-12-09 12:11 -0800
Re: f.) for Gorth "HAA" <someone@microsoft.com> - 2016-12-23 13:23 +1100
Re: f.) for Gorth hughaguilar96@gmail.com - 2016-12-15 15:42 -0800
Re: f.) for Gorth "HAA" <someone@microsoft.com> - 2016-12-07 13:06 +1100
Re: f.) for Gorth hughaguilar96@gmail.com - 2016-12-06 18:32 -0800
Re: f.) for Gorth albert@cherry.spenarnc.xs4all.nl (Albert van der Horst) - 2016-12-07 12:41 +0100
Re: f.) for Gorth hughaguilar96@gmail.com - 2016-12-07 19:49 -0800
Re: f.) for Gorth Gerry Jackson <gerry@jackson9000.fsnet.co.uk> - 2016-12-08 08:12 +0000
Re: f.) for Gorth Rod Pemberton <NeedNotReplyHere@xrsevnneqk.cem> - 2016-12-08 18:53 -0500
Re: f.) for Gorth Alex <alex@rivadpm.com> - 2016-12-09 00:01 +0000
Re: f.) for Gorth albert@cherry.spenarnc.xs4all.nl (Albert van der Horst) - 2016-12-09 12:17 +0100
Re: f.) for Gorth anton@mips.complang.tuwien.ac.at (Anton Ertl) - 2016-12-09 13:01 +0000
Re: f.) for Gorth "HAA" <someone@microsoft.com> - 2016-12-09 11:19 +1100
Re: f.) for Gorth hughaguilar96@gmail.com - 2016-12-08 22:23 -0800
Re: f.) for Gorth hughaguilar96@gmail.com - 2016-12-09 07:11 -0800
Re: f.) for Gorth hughaguilar96@gmail.com - 2016-12-20 22:40 -0800
Re: f.) for Gorth Julian Fondren <julian.fondren@gmail.com> - 2016-12-20 23:59 -0800
Re: f.) for Gorth hughaguilar96@gmail.com - 2016-12-21 21:17 -0800
Re: f.) for Gorth The Beez <the.beez.speaks@gmail.com> - 2016-12-13 08:51 -0800
Re: f.) for Gorth anton@mips.complang.tuwien.ac.at (Anton Ertl) - 2016-12-09 12:47 +0000
Re: f.) for Gorth "HAA" <someone@microsoft.com> - 2016-12-10 11:54 +1100
Re: f.) for Gorth hughaguilar96@gmail.com - 2016-12-09 17:28 -0800
Re: f.) for Gorth hughaguilar96@gmail.com - 2016-12-09 18:20 -0800
Re: f.) for Gorth anton@mips.complang.tuwien.ac.at (Anton Ertl) - 2016-12-10 14:26 +0000
Re: f.) for Gorth The Beez <the.beez.speaks@gmail.com> - 2016-12-13 09:14 -0800
Re: f.) for Gorth albert@cherry.spenarnc.xs4all.nl (Albert van der Horst) - 2016-12-13 19:24 +0100
Re: f.) for Gorth Andrew Haley <andrew29@littlepinkcloud.invalid> - 2016-12-14 07:29 -0600
Re: f.) for Gorth Hans Bezemer <the.beez.speaks@gmail.com> - 2016-12-14 18:29 +0100
Re: f.) for Gorth Julian Fondren <julian.fondren@gmail.com> - 2016-12-14 10:13 -0800
Re: f.) for Gorth Andrew Haley <andrew29@littlepinkcloud.invalid> - 2016-12-15 03:45 -0600
Re: f.) for Gorth anton@mips.complang.tuwien.ac.at (Anton Ertl) - 2016-12-15 10:42 +0000
Re: f.) for Gorth Andrew Haley <andrew29@littlepinkcloud.invalid> - 2016-12-15 05:11 -0600
Re: f.) for Gorth anton@mips.complang.tuwien.ac.at (Anton Ertl) - 2016-12-15 12:36 +0000
Re: f.) for Gorth Andrew Haley <andrew29@littlepinkcloud.invalid> - 2016-12-15 07:33 -0600
Re: f.) for Gorth anton@mips.complang.tuwien.ac.at (Anton Ertl) - 2016-12-15 14:31 +0000
Re: f.) for Gorth Andrew Haley <andrew29@littlepinkcloud.invalid> - 2016-12-15 14:34 -0600
Re: f.) for Gorth Paul Rubin <no.email@nospam.invalid> - 2016-12-15 16:20 -0800
Re: f.) for Gorth Julian Fondren <julian.fondren@gmail.com> - 2016-12-15 16:46 -0800
Re: f.) for Gorth Julian Fondren <julian.fondren@gmail.com> - 2016-12-17 09:23 -0800
Re: f.) for Gorth Andrew Haley <andrew29@littlepinkcloud.invalid> - 2016-12-19 02:56 -0600
Re: f.) for Gorth anton@mips.complang.tuwien.ac.at (Anton Ertl) - 2016-12-16 08:10 +0000
Re: f.) for Gorth Andrew Haley <andrew29@littlepinkcloud.invalid> - 2016-12-16 10:00 -0600
Re: f.) for Gorth anton@mips.complang.tuwien.ac.at (Anton Ertl) - 2016-12-18 10:32 +0000
Re: f.) for Gorth Andrew Haley <andrew29@littlepinkcloud.invalid> - 2016-12-19 03:22 -0600
Re: f.) for Gorth albert@cherry.spenarnc.xs4all.nl (Albert van der Horst) - 2016-12-16 14:14 +0100
Re: f.) for Gorth Bernd Paysan <bernd@net2o.de> - 2016-12-19 19:41 +0000
Re: f.) for Gorth Andrew Haley <andrew29@littlepinkcloud.invalid> - 2016-12-20 03:02 -0600
Re: f.) for Gorth mhx@iae.nl - 2016-12-20 01:27 -0800
Re: f.) for Gorth anton@mips.complang.tuwien.ac.at (Anton Ertl) - 2016-12-20 12:35 +0000
Re: f.) for Gorth Charles Montgomery <cgm@physics.utoledo.edu> - 2016-12-20 21:23 -0500
Re: f.) for Gorth anton@mips.complang.tuwien.ac.at (Anton Ertl) - 2016-12-21 07:29 +0000
Re: f.) for Gorth Charles Montgomery <cgm@physics.utoledo.edu> - 2016-12-21 22:24 -0500
Re: f.) for Gorth "David N. Williams" <williams@umich.edu> - 2016-12-22 08:10 -0500
Re: f.) for Gorth anton@mips.complang.tuwien.ac.at (Anton Ertl) - 2016-12-22 17:39 +0000
Re: f.) for Gorth albert@cherry.spenarnc.xs4all.nl (Albert van der Horst) - 2016-12-15 12:53 +0100
Re: f.) for Gorth Andrew Haley <andrew29@littlepinkcloud.invalid> - 2016-12-15 05:59 -0600
Re: f.) for Gorth "Robert L." <No_spamming@noWhere_7073.org> - 2017-01-03 16:15 +0000
Re: f.) for Gorth anton@mips.complang.tuwien.ac.at (Anton Ertl) - 2016-12-14 17:06 +0000
Re: f.) for Gorth "HAA" <someone@microsoft.com> - 2016-12-18 10:58 +1100
Re: f.) for Gorth Paul Rubin <no.email@nospam.invalid> - 2016-12-17 17:26 -0800
Re: f.) for Gorth "HAA" <someone@microsoft.com> - 2016-12-19 13:16 +1100
Re: f.) for Gorth hughaguilar96@gmail.com - 2016-12-18 19:19 -0800
Re: f.) for Gorth john <anon@example.com> - 2016-12-19 11:03 +0000
Re: f.) for Gorth Mark Wills <markwills1970@gmail.com> - 2016-12-20 01:46 -0800
Re: f.) for Gorth john <anon@example.com> - 2016-12-20 12:14 +0000
Re: f.) for Gorth hughaguilar96@gmail.com - 2016-12-20 17:34 -0800
Re: f.) for Gorth Paul Rubin <no.email@nospam.invalid> - 2016-12-18 19:25 -0800
Re: f.) for Gorth hughaguilar96@gmail.com - 2016-12-18 19:45 -0800
Re: f.) for Gorth "HAA" <someone@microsoft.com> - 2016-12-22 11:32 +1100
Re: f.) for Gorth Bernd Paysan <bernd@net2o.de> - 2017-01-03 19:33 +0000
Re: f.) for Gorth hughaguilar96@gmail.com - 2017-01-03 22:13 -0800
Re: f.) for Gorth Alex <alex@rivadpm.com> - 2017-01-04 23:03 +0000
Re: f.) for Gorth hughaguilar96@gmail.com - 2017-01-06 22:52 -0800
Re: f.) for Gorth Alex <alex@rivadpm.com> - 2017-01-07 22:45 +0000
Re: f.) for Gorth hughaguilar96@gmail.com - 2017-01-07 17:23 -0800
Re: f.) for Gorth Alex <alex@rivadpm.com> - 2017-01-08 09:13 +0000
Re: f.) for Gorth hughaguilar96@gmail.com - 2017-01-08 17:10 -0800
Re: f.) for Gorth Alex <alex@rivadpm.com> - 2017-01-09 10:22 +0000
Re: f.) for Gorth stephen@mpeforth.com - 2017-01-08 07:00 -0800
Re: f.) for Gorth albert@cherry.spenarnc.xs4all.nl (Albert van der Horst) - 2017-05-20 14:09 +0200
Re: f.) for Gorth Matthias Trute <matthias.trute@gmail.com> - 2017-01-11 01:14 -0800
Re: f.) for Gorth albert@cherry.spenarnc.xs4all.nl (Albert van der Horst) - 2016-12-07 12:26 +0100
Re: f.) for Gorth "HAA" <someone@microsoft.com> - 2016-12-08 10:21 +1100
Re: f.) for Gorth albert@cherry.spenarnc.xs4all.nl (Albert van der Horst) - 2016-12-20 15:45 +0100
Re: f.) for Gorth Alex <alex@rivadpm.com> - 2016-12-20 15:33 +0000
Re: f.) for Gorth "HAA" <someone@microsoft.com> - 2016-12-22 11:37 +1100
Re: f.) for Gorth albert@cherry.spenarnc.xs4all.nl (Albert van der Horst) - 2016-12-22 14:19 +0100
Re: f.) for Gorth "HAA" <someone@microsoft.com> - 2016-12-23 12:11 +1100
Re: f.) for Gorth hughaguilar96@gmail.com - 2016-12-22 17:49 -0800
Re: f.) for Gorth "HAA" <someone@microsoft.com> - 2016-12-23 20:41 +1100
Re: f.) for Gorth albert@cherry.spenarnc.xs4all.nl (Albert van der Horst) - 2017-05-20 14:21 +0200
Re: f.) for Gorth hughaguilar96@gmail.com - 2016-12-15 22:31 -0800
Re: f.) for Gorth hughaguilar96@gmail.com - 2016-12-16 18:26 -0800
Re: f.) for Gorth hughaguilar96@gmail.com - 2016-12-18 16:41 -0800
Re: f.) for Gorth stephen@mpeforth.com - 2016-12-20 02:20 -0800
Re: f.) for Gorth anton@mips.complang.tuwien.ac.at (Anton Ertl) - 2016-12-20 13:04 +0000
Re: f.) for Gorth hughaguilar96@gmail.com - 2016-12-20 17:27 -0800
Re: f.) for Gorth hughaguilar96@gmail.com - 2016-12-17 10:36 -0800
Re: f.) for Gorth Julian Fondren <julian.fondren@gmail.com> - 2016-12-17 11:51 -0800
Re: f.) for Gorth hughaguilar96@gmail.com - 2016-12-18 19:35 -0800
Re: f.) for Gorth albert@cherry.spenarnc.xs4all.nl (Albert van der Horst) - 2016-12-19 14:17 +0100
Re: f.) for Gorth hughaguilar96@gmail.com - 2016-12-19 10:10 -0800
Re: f.) for Gorth Alex <alex@rivadpm.com> - 2016-12-19 20:33 +0000
Re: f.) for Gorth hughaguilar96@gmail.com - 2016-12-19 18:11 -0800
Re: f.) for Gorth Julian Fondren <julian.fondren@gmail.com> - 2016-12-19 19:03 -0800
Re: f.) for Gorth Gerry Jackson <gerry@jackson9000.fsnet.co.uk> - 2016-12-20 08:10 +0000
Re: f.) for Gorth hughaguilar96@gmail.com - 2016-12-20 18:05 -0800
Re: f.) for Gorth - what is a number? Jan Coombs <jenfhaomndgfwutc@murmic.plus.com> - 2016-12-21 09:04 +0000
Re: f.) for Gorth Alex <alex@rivadpm.com> - 2016-12-20 15:26 +0000
Re: f.) for Gorth Andrew Haley <andrew29@littlepinkcloud.invalid> - 2016-12-20 11:30 -0600
Language stds (was Re: f.) for Gorth) Alex <alex@rivadpm.com> - 2016-12-20 19:49 +0000
Re: Language stds (was Re: f.) for Gorth) john <anon@example.com> - 2016-12-20 20:06 +0000
Re: f.) for Gorth hughaguilar96@gmail.com - 2016-12-20 17:52 -0800
Re: f.) for Gorth Alex <alex@rivadpm.com> - 2016-12-21 13:47 +0000
Re: f.) for Gorth hughaguilar96@gmail.com - 2016-12-21 20:46 -0800
Re: f.) for Gorth Alex <alex@rivadpm.com> - 2016-12-22 14:33 +0000
Re: f.) for Gorth hughaguilar96@gmail.com - 2016-12-22 07:06 -0800
Re: f.) for Gorth Julian Fondren <julian.fondren@gmail.com> - 2016-12-22 07:21 -0800
Re: f.) for Gorth Gerry Jackson <gerry@jackson9000.fsnet.co.uk> - 2016-12-23 07:41 +0000
Re: f.) for Gorth Alex <alex@rivadpm.com> - 2016-12-23 08:33 +0000
Re: f.) for Gorth hughaguilar96@gmail.com - 2016-12-23 18:22 -0800
Re: f.) for Gorth Julian Fondren <julian.fondren@gmail.com> - 2016-12-23 20:28 -0800
Re: f.) for Gorth hughaguilar96@gmail.com - 2016-12-26 18:30 -0800
Language stds (Re: f.) for Gorth) "HAA" <someone@microsoft.com> - 2016-12-24 12:12 +1100
Re: Language stds (Re: f.) for Gorth) Andrew Haley <andrew29@littlepinkcloud.invalid> - 2016-12-24 03:28 -0600
Re: Language stds (Re: f.) for Gorth) "Elizabeth D. Rather" <erather@forth.com> - 2016-12-24 10:02 -0600
Re: Language stds (Re: f.) for Gorth) hughaguilar96@gmail.com - 2016-12-24 16:13 -0800
Re: Language stds (Re: f.) for Gorth) Alex <alex@rivadpm.com> - 2016-12-24 18:13 +0000
Re: Language stds (Re: f.) for Gorth) "HAA" <someone@microsoft.com> - 2016-12-28 09:24 +1100
Re: Language stds (Re: f.) for Gorth) "Elizabeth D. Rather" <erather@forth.com> - 2016-12-27 17:10 -0600
Re: Language stds (Re: f.) for Gorth) hughaguilar96@gmail.com - 2016-12-27 22:58 -0800
Re: Language stds (Re: f.) for Gorth) "HAA" <someone@microsoft.com> - 2016-12-29 10:12 +1100
Re: Language stds (Re: f.) for Gorth) "Elizabeth D. Rather" <erather@forth.com> - 2016-12-29 17:03 -0800
Re: Language stds (Re: f.) for Gorth) hughaguilar96@gmail.com - 2016-12-29 19:35 -0800
Re: Language stds (Re: f.) for Gorth) Howerd <howerdo@yahoo.co.uk> - 2016-12-30 05:27 -0800
Re: Language stds (Re: f.) for Gorth) hughaguilar96@gmail.com - 2016-12-30 19:11 -0800
Re: Language stds (Re: f.) for Gorth) hughaguilar96@gmail.com - 2016-12-31 06:42 -0800
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