Re: FP number syntax

Liste des Groupes 
Sujet : Re: FP number syntax
De : anton (at) *nospam* mips.complang.tuwien.ac.at (Anton Ertl)
Groupes : comp.lang.forth
Date : 02. Jan 2025, 16:51:11
Autres entêtes
Organisation : Institut fuer Computersprachen, Technische Universitaet Wien
Message-ID : <2025Jan2.165111@mips.complang.tuwien.ac.at>
References : 1 2 3 4 5
User-Agent : xrn 10.11
albert@spenarnc.xs4all.nl writes:
The confusion between 31E0 (hex) 31E0 (fp) 3.10 is another
roadblock to Forth newbies.

Certainly, especially the latter.  The hex problem can be eliminated
by always keeping the BASE as DECIMAL, and writing hex numbers as
$31E0.  The 3.10 tradition and the 31. standard can be addressed with
a variation of your statement:

   Recognizing a double if it contains no number prefix and one single
   period at the end is obsolescent.

One step later a standard Forth system could recognize 3.10 as well as
31. and 31e as FP values, #31. as a double-cell integer, and $31e
as a single-cell integer.

- anton
--
M. Anton Ertl  http://www.complang.tuwien.ac.at/anton/home.html
comp.lang.forth FAQs: http://www.complang.tuwien.ac.at/forth/faq/toc.html
     New standard: https://forth-standard.org/
   EuroForth 2024: https://euro.theforth.net

Date Sujet#  Auteur
8 Dec 24 * ANN: DX-Forth 4.5756dxf
9 Dec 24 `* Re: ANN: DX-Forth 4.5755Hans Bezemer
10 Dec 24  +* Re: ANN: DX-Forth 4.575dxf
10 Dec 24  i+- Re: ANN: DX-Forth 4.571albert
10 Dec 24  i`* Re: ANN: DX-Forth 4.573albert
10 Dec 24  i `* Re: ANN: DX-Forth 4.572dxf
11 Dec 24  i  `- Re: ANN: DX-Forth 4.571dxf
24 Dec 24  `* Re: ANN: DX-Forth 4.5749John
24 Dec 24   `* Re: ANN: DX-Forth 4.5748dxf
25 Dec 24    `* Re: ANN: DX-Forth 4.5747John
25 Dec 24     +* Re: ANN: DX-Forth 4.5745dxf
25 Dec 24     i`* FP number syntax (was: ANN: DX-Forth 4.57)44Anton Ertl
25 Dec 24     i +* Re: FP number syntax42minforth
26 Dec 24     i i`* Re: FP number syntax41dxf
26 Dec 24     i i +* Re: FP number syntax39Paul Rubin
26 Dec 24     i i i+* Re: FP number syntax36dxf
26 Dec 24     i i ii+* Re: FP number syntax30Paul Rubin
26 Dec 24     i i iii+* Re: FP number syntax2minforth
27 Dec 24     i i iiii`- Re: FP number syntax1dxf
26 Dec 24     i i iii`* Re: FP number syntax27Anton Ertl
27 Dec 24     i i iii +- Re: FP number syntax1dxf
27 Dec 24     i i iii +* Re: FP number syntax17Paul Rubin
27 Dec 24     i i iii i+* Re: FP number syntax5mhx
27 Dec 24     i i iii ii`* Re: FP number syntax4minforth
27 Dec 24     i i iii ii `* Re: FP number syntax3albert
27 Dec 24     i i iii ii  `* Re: FP number syntax2minforth
28 Dec 24     i i iii ii   `- Re: FP number syntax1albert
31 Dec 24     i i iii i`* Re: FP number syntax11Anton Ertl
1 Jan 25     i i iii i `* Re: FP number syntax10dxf
1 Jan 25     i i iii i  `* Re: FP number syntax9Bernd Linsel
1 Jan 25     i i iii i   `* Re: FP number syntax8dxf
1 Jan 25     i i iii i    +- Re: FP number syntax1dxf
1 Jan 25     i i iii i    `* Re: FP number syntax6Anton Ertl
1 Jan 25     i i iii i     +- Re: FP number syntax1HenryHH
1 Jan 25     i i iii i     `* Re: FP number syntax4dxf
1 Jan 25     i i iii i      +* Re: FP number syntax2mhx
1 Jan 25     i i iii i      i`- Re: FP number syntax1albert
1 Jan 25     i i iii i      `- Re: FP number syntax1dxf
27 Dec 24     i i iii `* Re: FP number syntax8albert
28 Dec 24     i i iii  +- Re: FP number syntax1dxf
31 Dec 24     i i iii  `* Re: FP number syntax6Anton Ertl
2 Jan 25     i i iii   `* Re: FP number syntax5Anton Ertl
3 Jan 25     i i iii    `* Re: FP number syntax4albert
3 Jan 25     i i iii     `* Re: FP number syntax3Anton Ertl
4 Jan 25     i i iii      +- Re: FP number syntax1minforth
4 Jan 25     i i iii      `- Re: FP number syntax1albert
3 Jan 25     i i ii`* Re: FP number syntax5dxf
3 Jan 25     i i ii +* Re: FP number syntax2minforth
3 Jan 25     i i ii i`- Re: FP number syntax1dxf
3 Jan 25     i i ii `* Re: FP number syntax2Anton Ertl
3 Jan 25     i i ii  `- Re: FP number syntax1minforth
26 Dec 24     i i i`* Re: FP number syntax2Anton Ertl
26 Dec 24     i i i `- Re: FP number syntax1dxf
26 Dec 24     i i `- Re: FP number syntax1mhx
25 Dec 24     i `- Re: FP number syntax (was: ANN: DX-Forth 4.57)1albert
26 Dec 24     `- Re: ANN: DX-Forth 4.571dxf

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