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<blockquote type="cite" cite="mid:7wr2q35c7x.fsf@junk.nocrew.org">
<pre wrap="">Timothe Litt wrote:
</pre>
<blockquote type="cite">
<pre wrap="">I may have missed it, but you'll get more help if you provide the OS that
you're running on, the file attributes (for DCL, dir/full and/or
dump/header), and a hex dump of the first block or two of the file.
</pre>
</blockquote>
<pre wrap="">
I'm running this in ITS, using the DECUUO TOPS-10 emulator. So maybe
it's not surprising if it doesn't work exactly right. There aren't much
in the way of file attributes.
This is what the file looks like in Unix. The linefeeds are converted
to CRLF when transferred to ITS.
00000000 31 0a 31 09 20 59 4f 55 20 41 52 45 20 53 54 41 |1.1. YOU ARE STA|
00000010 4e 44 49 4e 47 20 41 54 20 54 48 45 20 45 4e 44 |NDING AT THE END|
00000020 20 4f 46 20 41 20 52 4f 41 44 20 42 45 46 4f 52 | OF A ROAD BEFOR|
00000030 45 20 41 20 53 4d 41 4c 4c 20 42 52 49 43 4b 0a |E A SMALL BRICK.|
00000040 31 09 20 42 55 49 4c 44 49 4e 47 20 2e 20 41 52 |1. BUILDING . AR|
</pre>
</blockquote>
OK, so it's stream-crlf. I was never much of an ITS user, and never
used FORTRAN there. I don't think ITS had file attributes at the
filesystem level, so we don't have to worry about that level of
complication.<br>
<br>
If a leading space (1H ) gets the data read correctly, the RTL
thinks a FORTRAN file is expected by the<br>
user code, and is turning the <data>crlf into <sp>data.
This behavior is is either explicit (an OPEN argument), or implicit
(based on file name, unit number, or device type). Is the file
extension .DAT? that may trigger this.<br>
<br>
Is there an OPEN statement for that file? If so, what does it
include? If not, how is it connected to which LUN, and what's its
full name (as seen by a UUO)?<br>
<br>
What fortran compiler/runtime? DEC's F40? FORTRAN-10? Something
else?<br>
<br>
Later versions of F40 supported open (some earlier versions had CALL
OPEN(same args)).<br>
<br>
You need the reference manual for whichever compiler/RTL you're
using.<br>
<br>
For FORTRAN-10, look for aa-n383b-tk ("TOPS-10/TOPS-20 FORTRAN
Language Reference Manual")<br>
<br>
There is a bitsavers URL for that, but it's broken and seems broken
on the mirrors too:
<a class="moz-txt-link-freetext" href="http://bitsavers.org/pdf/dec/pdp10/TOPS10_softwareNotebooks/vol11/AA-N383B-TK_fortLangMan.pdf">http://bitsavers.org/pdf/dec/pdp10/TOPS10_softwareNotebooks/vol11/AA-N383B-TK_fortLangMan.pdf</a><br>
<br>
<br>
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