Modifiers For Five-character Branch On Indicator (B) Instruction
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BCD Character | Unit | Meaning |
---|---|---|
Blank | 1401 | Unconditional—no word mark needed in next character |
1 | 1009 | in run condition |
1011 | punch in backspace operation | |
1011 | reader parity indicator on | |
1231 | auto select | |
1285 | error | |
1412 | control-check indicator on | |
1418 | late read | |
1419 | document to be read | |
1428 | late read or late reading mode change | |
1445 | printer error | |
7340 | hypertape unusual end | |
7740 | transmission complete with abnormal status | |
DDC | transmission error | |
2 | 1009 | buffer available |
1011 | punch ready | |
1011 | reader ready | |
1231 | full buffer | |
1285 | end of line | |
1412 | reader-not-ready signal on | |
1418 | ready to engage | |
1419 | document under read head (PDS 4) | |
1428 | ready to engage | |
7340 | hypertape normal end | |
7740 | transmission complete successfully | |
DDC | transmission ended by GMWM | |
3 | 1009 | good transmission occurred |
1011 | punch not ready to receive data | |
1231 | ready to read | |
1285 | reader transporting | |
1412 | read-check indicator on | |
1418 | document under selected read station | |
1419 | valid amount field | |
1428 | document under selected read station | |
7340 | hypertape control unit 7641 busy | |
7740 | receive request | |
DDC | read request | |
4 | 1009 | reply-bad indicator on |
1011 | punch not ready to read | |
1231 | empty hopper | |
1285 | marked line | |
1412 | amount-field indicator on | |
1419 | valid process-control field | |
7340 | hypertape attention | |
7740 | 7740 attention | |
DDC | write request | |
5 | 1009 | error reply acknowledgement |
1011 | punch overextended | |
1231 | read error or overrun | |
1285 | header information | |
1412 | process-control indicator on | |
1418 | document end | |
1419 | valid account-number field | |
1428 | document end | |
1445 | printer busy | |
6 | 1009 | program attention required |
1011 | punch supply reel low or chad box full | |
1231 | timing mark check | |
1285 | ready to read a line | |
1412 | account-number indicator on | |
1418 | character on line | |
1419 | valid transit-number field | |
1428 | character on line | |
1445 | carriage busy | |
DDC | write in progress | |
7 | 1009 | end of message |
1285 | reader ready | |
1412 | transit-number indicator on | |
1418 | empty hopper and transport (end of file) | |
1419 | valid serial-number field | |
1428 | empty hopper and transport (end of file) | |
1445 | carriage channel 9 | |
DDC | read in progress | |
8 | 1009 | end of file |
1285 | end of file | |
1412 | document-spacing-check indicator on | |
1418 | ready to read | |
1419 | auto-select | |
1428 | ready to read | |
1448 | carriage channel 12 | |
DDC | system A stopped | |
9 | 1403 | carriage tape channel 9 |
0 | 1404 | validity error |
' or @ | 1403 | carriage tape channel 12 |
> | 1448 | end of block |
/ | 1401 | unequal compare |
S | 1401 | equal compare |
T | 1401 | low compare |
U | 1401 | high compare |
V | 1301 | disk error |
1311 | disk error | |
1405 | read or write parity check or read back check error | |
W | 1301 | wrong-length record |
1311 | wrong-length record | |
1405 | wrong-length record | |
X | 1301 | uniqual-address compare |
1311 | uniqual-address compare | |
1405 | uniqual-address compare | |
Y | 1301 | any disk-unit error condition |
1311 | any disk-unit error condition | |
1405 | any disk-unit error condition | |
Z | 1401 | arithmetic overflow |
‡ | 1403 | printer error (record mark) |
( or % | 1401 | process check with process check switch off |
1440 | I/O check stop switch off | |
\ | 1301 | access busy |
1311 | access busy | |
J | 1419 | I/O channel-busy indicator |
TAU | tape busy | |
SIO | serial input-output busy | |
K | TAU | end of reel (writing) or tape mark (reading) |
L | TAU | tape error |
N | 1301 | access inoperable |
1311 | access inoperable | |
1405 | access inoperable | |
P | 1403 | printer busy |
Q | 1407 | inquiry request |
R | 1403 | carriage busy |
! | 1402 | punch error |
* | 1407 | inquiry clear |
+ or & | 1442 | last card (Reader unit 2) |
A | 1402 | last card if SS A is on |
B | 1401 | SS B |
7340 | hypertape attention response | |
C | 1401 | SS C |
D | 1401 | SS D |
E | 1401 | SS E |
7340 | hypertape end response | |
F | 1401 | SS F |
G | 1401 | SS G |
H | 1402 | reader busy |
I | 1402 | punch busy |
? | 1402 | reader error |
< | 1448 | early warning |
Read more about this topic: IBM 1401
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