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Programming > Assembly 370 > Re: S/360
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Re: S/360

by glen herrmannsfeldt <gah@[EMAIL PROTECTED] > Jan 16, 2006 at 09:59 PM

Tom Linden wrote:

> On Mon, 16 Jan 2006 19:28:21 -0800, glen herrmannsfeldt  
> <gah@[EMAIL PROTECTED]
> wrote:

>> Also, IBM had extended precision which has rarely been matched by
>> others, as far as hardware implemented floating point.

> VAX wasn't bad at 113 fractional bits  (and yes the manual does _not_
> call it a mantissa (your welcome Glen!) )

I used to work at a place with three 11/750's and an 11/730.  I never 
tried it, but guess which one is supposed to be faster for H-float.
Yep, the 730.  It was one of the few that had hardware for H-float.

I don't know the later VAX well enough to know which did, but I believe
it was rare.  All would do it in software, though.

The IBM extended precision format was specifically designed to be
easy to implement in software.

-- glen




 79 Posts in Topic:
Re: S/360
 hancock4@[EMAIL PROTECTED  2006-01-13 09:25:48 
Re: S/360
 "John W. Kennedy&quo  2006-01-13 15:26:11 
Re: S/360
 "robin" <rob  2006-01-13 23:28:44 
Re: S/360
 "John W. Kennedy&quo  2006-01-13 19:30:47 
Re: S/360
 glen herrmannsfeldt <g  2006-01-14 02:00:48 
Re: S/360
 "Donald L. Dobbs&quo  2006-01-14 11:53:14 
Re: S/360
 "robin" <rob  2006-01-15 14:25:08 
Re: S/360
 "John W. Kennedy&quo  2006-01-15 11:46:34 
Re: S/360
 glen herrmannsfeldt <g  2006-01-16 00:26:15 
Re: S/360
 "robin" <rob  2006-01-16 23:28:40 
Re: S/360
 "robin" <rob  2006-01-16 23:28:41 
Re: S/360
 "John W. Kennedy&quo  2006-01-16 20:11:37 
Re: S/360
 glen herrmannsfeldt <g  2006-01-16 19:28:21 
Re: S/360
 "Tom Linden" &l  2006-01-16 20:19:01 
Re: S/360
 glen herrmannsfeldt <g  2006-01-16 21:59:58 
Re: S/360
 multicsfan <multicsfan  2006-01-17 13:01:21 
Re: S/360
 Dan Nagle <dannagle@[E  2006-01-17 13:35:59 
Re: S/360
 multicsfan <multicsfan  2006-01-17 21:09:17 
Re: S/360
 Dan Nagle <dannagle@[E  2006-01-17 22:00:29 
Re: S/360
 multicsfan <multicsfan  2006-01-17 22:11:17 
Re: S/360
 glen herrmannsfeldt <g  2006-01-17 19:11:38 
Re: S/360
 multicsfan <multicsfan  2006-01-18 04:18:15 
Re: S/360
 glen herrmannsfeldt <g  2006-01-17 21:00:10 
Re: S/360
 "robin" <rob  2006-01-18 13:27:46 
Re: S/360
 "robin" <rob  2006-01-17 21:18:17 
Re: S/360
 "John W. Kennedy&quo  2006-01-17 22:16:30 
Re: S/360
 ime@[EMAIL PROTECTED] (R  2006-01-19 06:31:58 
Re: S/360
 "John W. Kennedy&quo  2006-01-19 11:31:46 
Re: S/360
 "Tom Linden" &l  2006-01-19 14:25:29 
Re: S/360
 "John W. Kennedy&quo  2006-01-21 00:11:31 
Re: S/360
 "robin" <rob  2006-01-22 02:11:29 
Re: S/360
 "John W. Kennedy&quo  2006-01-21 23:53:43 
Re: S/360
 ararghmail601NOSPAM@[EMAI  2006-01-21 23:45:18 
Re: S/360
 "Tom Lake" <  2006-01-22 07:27:13 
Re: S/360
 ararghmail601NOSPAM@[EMAI  2006-01-22 02:45:39 
Re: S/360
 "Tom Lake" <  2006-01-22 10:26:38 
Re: S/360
 ararghmail601NOSPAM@[EMAI  2006-01-22 05:33:34 
Re: S/360
 Bob Lidral <l1dralspam  2006-01-22 09:05:28 
Re: S/360
 "John W. Kennedy&quo  2006-01-22 12:39:26 
Re: S/360
 "Tom Lake" <  2006-01-22 18:07:39 
Re: S/360
 Bob Lidral <l1dralspam  2006-01-23 01:47:44 
Re: S/360
 "John W. Kennedy&quo  2006-01-22 12:37:49 
Re: S/360
 "R. Vowels" <  2006-01-24 14:25:07 
Re: S/360
 "robin" <rob  2006-02-02 23:36:41 
Re: S/360
 glen herrmannsfeldt <g  2006-01-19 20:14:04 
Re: S/360
 "robin" <rob  2006-01-20 00:14:17 
Re: S/360
 "robin" <rob  2006-01-20 00:14:16 
Re: S/360
 "John W. Kennedy&quo  2006-01-21 00:22:49 
Re: S/360
 "robin" <rob  2006-01-22 02:11:31 
Re: S/360
 "John W. Kennedy&quo  2006-01-21 23:59:22 
Re: S/360
 "R. Vowels" <  2006-01-24 14:25:08 
Re: S/360
 "robin" <rob  2006-04-08 03:34:11 
Re: S/360
 glen herrmannsfeldt <g  2006-04-07 22:16:04 
Re: S/360
 "robin" <rob  2006-04-10 01:05:09 
Re: S/360
 "Tom Linden" &l  2006-04-10 06:34:38 
Re: S/360
 Binyamin Dissen <posti  2006-04-10 19:51:31 
Re: S/360
 glen herrmannsfeldt <g  2006-04-10 17:48:54 
Re: S/360
 "James J. Weinkam&qu  2006-04-10 23:15:40 
Re: S/360
 "robin" <rob  2006-05-25 12:58:54 
Re: S/360
 glen herrmannsfeldt <g  2006-05-26 17:41:26 
Re: S/360
 "James J. Weinkam&qu  2006-05-27 05:12:32 
Re: S/360
 ime@[EMAIL PROTECTED] (R  2006-05-27 08:45:31 
Re: S/360
 "robin" <rob  2006-05-25 12:58:54 
Re: S/360
 glen herrmannsfeldt <g  2006-05-25 13:49:57 
Re: S/360
 "robin" <rob  2006-05-29 00:37:01 
Re: S/360
 glen herrmannsfeldt <g  2006-05-28 17:41:27 
Re: S/360
 "robin" <rob  2006-05-30 00:03:10 
Re: S/360
 Steve Myers <noone@[EM  2006-05-31 21:16:13 
Re: S/360
 "robin" <rob  2006-06-01 22:06:11 
Re: S/360
 "robin" <rob  2006-06-02 23:27:59 
Re: S/360
 Steve Myers <noone@[EM  2006-06-03 12:19:30 
Re: S/360
 "robin" <rob  2006-06-07 10:58:32 
Re: S/360
 glen herrmannsfeldt <g  2006-06-07 13:59:32 
Re: S/360
 "robin" <rob  2006-06-10 22:47:44 
Re: S/360
 "robin" <rob  2006-06-01 22:06:11 
Re: S/360
 "robin" <rob  2006-02-03 15:05:02 
Re: S/360
 "Sven Pran" <  2006-01-14 01:32:19 
Re: S/360
 "John W. Kennedy&quo  2006-01-13 19:49:54 
Re: S/360
 multicsfan <multicsfan  2006-01-14 00:22:28 

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tan12V112 Fri Jul 25 15:15:36 CDT 2008.