At 15:48 -0400 on 07/23/2008, Tony Harminc wrote about Re: IBM 029
keypunch -- 0-8-2 overpunch -- what hex code re:
The 2540 was quite happy to read so-called column binary cards, that
is cards with any 12-bit combination of holes punched. (Well, happy
may be the wrong word, but the problems we
ww.garlic.com/~lynn/2008k.html#42 IBM 029 keypunch -- 0-8-2 overpunch
-- what hex code results?
http://www.garlic.com/~lynn/2008k.html#43 IBM 029 keypunch -- 0-8-2 overpunch
-- what hex code results?
on 360 reading column binary, read 80 columns into 160 bytes
(i.e. column with effectively 12b
2008/7/23 William H. Blair <[EMAIL PROTECTED]>:
> Tony Harminc wrote:
>
>> Do you mean an algorithm? ... I'm not sure there is an overall
>> algorithm, though obviously there are certain patterns to be
>> seen.
>
> Of course there is an algorithm. Card readers implement it. In
> fact, it can be ded
On Wed, 23 Jul 2008 13:07:34 -0400, Anne & Lynn Wheeler wrote:
>http://www.cs.uiowa.edu/~jones/cards/codes.html
That chart doesn't match the one in the 360 POO, which shows the table
divided into four sections.
00-78
80-F9
09-7F
8A-FF
The upper part of the table uses different zone punches for
as column one of compiler and assembler
> outputs ... i.e. ESD, TXT, etc cards.
>
> maybe, I add the above table to my gcard.html
re:
http://www.garlic.com/~lynn/2008k.html#42 IBM 029 keypunch -- 0-8-2 overpunch
-- what hex code results?
but 0-8-2 is one of the exceptions to the table ... showing
The following message is a courtesy copy of an article
that has been posted to bit.listserv.ibm-main,alt.folklore.computers as well.
[EMAIL PROTECTED] (Mark Waterbury) writes:
> Does anyone recall how to determine the one byte value that results
> from a column on an 80-byte card that was "overpu
Tony Harminc wrote:
> Do you mean an algorithm? ... I'm not sure there is an overall
> algorithm, though obviously there are certain patterns to be
> seen.
Of course there is an algorithm. Card readers implement it. In
fact, it can be deduced (or reverse engineered) simply by use
of Boolean al
2008/7/23 Mark Waterbury <[EMAIL PROTECTED]>:
> Does anyone recall how to determine the one byte value that results from a
> column on an 80-byte card that was "overpunched" with the 0-8-2 holes punched
> out? Please tell me, in hex, e.g. X'82' (for example only). Thanks.
Do you mean an algori
According to my S/370 RefCard 0-8-2 will produce x'E0'
Subject: IBM 029 keypunch -- 0-8-2 overpunch -- what hex code results?
Does anyone recall how to determine the one byte value that results from
a column on an 80-byte card that was "overpunched" with the 0-8-2 holes
Does anyone recall how to determine the one byte value that results from a
column on an 80-byte card that was "overpunched" with the 0-8-2 holes punched
out? Please tell me, in hex, e.g. X'82' (for example only). Thanks.
Mark S. Waterbury
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