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Programming > Fortran > Re: Read a head...
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Re: Read a header and then a binary file?

by glen herrmannsfeldt <gah@[EMAIL PROTECTED] > Jul 24, 2008 at 11:43 AM

glen herrmannsfeldt wrote:

> Richard Maine wrote:
(snip)

>> Direct access was new to f77 (at least as a feature of the standard).

After the last post, I realized that READ DRUM and WRITE DRUM
are pretty much direct access I/O.  The form is

       WRITE DRUM i,j,list

i specifies the drum number, from 1 through 8.
j is the word on the drum to start writing (or reading
for READ DRUM), between 0 and 2047, (modulo 2048 if larger
than 2047).

For timing reasons, either scalar variables or whole arrays
could be read/written.  (No implied-DO loops.)

In the days when 2048 words was a large amount of memory...

-- glen
 




 13 Posts in Topic:
Read a header and then a binary file?
badger <mdekauwe@[EMAI  2008-07-23 03:40:49 
RE: Read a header and then a binary file?
meek@[EMAIL PROTECTED]   2008-07-23 07:08:14 
Re: Read a header and then a binary file?
badger <mdekauwe@[EMAI  2008-07-23 06:44:33 
Re: Read a header and then a binary file?
GaryScott <garylscott@  2008-07-23 07:37:33 
RE: Read a header and then a binary file?
meek@[EMAIL PROTECTED]   2008-07-23 09:17:28 
Re: Read a header and then a binary file?
Rich Townsend <rhdt@[E  2008-07-23 15:12:36 
Re: Read a header and then a binary file?
nospam@[EMAIL PROTECTED]   2008-07-23 15:27:51 
Re: Read a header and then a binary file?
Rich Townsend <rhdt@[E  2008-07-23 22:08:42 
Re: Read a header and then a binary file?
nospam@[EMAIL PROTECTED]   2008-07-23 23:23:20 
Re: Read a header and then a binary file?
glen herrmannsfeldt <g  2008-07-24 05:26:38 
Re: Read a header and then a binary file?
glen herrmannsfeldt <g  2008-07-24 11:43:44 
Re: Read a header and then a binary file?
GaryScott <garylscott@  2008-07-23 09:00:23 
Re: Read a header and then a binary file?
GaryScott <garylscott@  2008-07-23 15:14:19 

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tan12V112 Wed Nov 19 8:05:52 CST 2008.