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<p>Actually, even parity was more common in the early daze of DEC
async. MARK always sets the high bit - even sets it only to make
the total number of 1s even.<br>
</p>
<p>Quick test: Given that #215 is CR - If the code is looking for
#212 for LF, it's mark. If it's looking for #012, it's even.</p>
<p>Note also that the digits can also be used - e.g. '0' => 060 -
is even, while 260 would be Mark (or Odd).</p>
<p>Generating the expected format is a function of the terminal
emulator.<br>
</p>
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<div class="moz-cite-prefix">On 24-Jul-20 04:37, Johnny Billquist
wrote:<br>
</div>
<blockquote type="cite"
cite="mid:b241985f-7f38-7c78-2fab-2d39eb677616@softjar.se">You
need to have your terminal set to MARK parity.
<br>
<br>
Johnny
<br>
<br>
On 2020-07-24 01:56, Paul Moore wrote:
<br>
<blockquote type="cite">I am trying to run an RK11 diagnostic and
am stuck.
<br>
<br>
The diagnostic asks the user how many drives to test and I can
get the input to work
<br>
<br>
Looking at the code, it is looking for digits and then cr.
<br>
<br>
But it is actually looking for #215, which is 0x8d. Which is CR
with the high bit set. (It also looks for #377 del with HB set)
<br>
<br>
So what happens is that it just keeps reprompting
<br>
<br>
I don’t see how that character ever gets into the system. I did
‘set tti 8b’ but it made no difference. I can post the relevant
code if needed.
<br>
<br>
<br>
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</blockquote>
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