Digital Equipment PDP-10 Manual page 36

Rows
026
Data
Punched
Processing
0-8-4
%
0-8-5
N/A
0-8-6
N/A
0-8-7
N/A
12-11-0-1
N/A
12-0-2-4-6-8
N/A.
7-9
N/A
026
FORTRAN
(
N/A
N/A
N/A
N/A
N/A
N/A
Table 2-6 (Cont)
Card Codes
029
%
-
>
?
N/A
N/A
N/A
NOTE
Data
Data
026
029
( %
"
+--
#
>
% ?
End of End of
File File
Mode Mode
Switch Switch
Binary Binary
12-0 is converted to 12-8-2 internally in DEC 026
11-0 is converted to 11-8-2 internally in DEC 026
Octal
Representation
1042
1022
1012
1006
7400
5252
XX05
2.6.1.2 CONO - The layout of the conditions word transferred to the card reader control logic
during a CONO is shown in Figure 2-5.
CLEAR OFFSE T READ
READER CLEAR
READY
CLEAR
CLE AR CLEAR
I
READER CARD CARD
TRBL DATA
ENAB
END OF END OF DATA
P I CHANNEL
ENAB MIS SE 0
FILE CARD REA DY
I
I
23 24 25 26
27 28 29 30
31 32 33
34 35
CONO
Figure 2-5 CON
a
Conditions Word
The CONO bits have the following significance:
a. Bit 23
=
1, clears the card reader control logic flip-flops. That is, the PI channel num-
ber is set to 0, the data missed, end of file, end of card, and data ready flags are set to
O.
The reader
trouble and ready to read signals are disabled from causing a program interrupt. The same actions are
also caused by turning on the card reader control and by the lOB RESET signal.
b. Bit 24
=
1, causes the card presently being read to be offset from the rest of the stacked
cards. This command is only effective when the card is in the reader (CONI bit 24
=
1).
2-16