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U1
I
"""
C7\
X
X
X
X
X
X
X
7X
X
X
A X
X
X
X
X
FX
OX
IX
2X
3X
4X
5X
6X
7X
ax
9X
AX
' X
CX
DX
EX
FX
0
I
2
-----
--
--
-
INVALID B ADDRESS
INVALID A ADDRESS
FILE-RBe STOP
NO ADDRESS RESPONSE SX
FILE-NO ENDS
ADDRESS MISMATCH
FI LE-NO ADDR COMP
INY UNIT STATION INlT SEL-SX
FILE-SEEK UNIT CHECK
RDR INTV REQ'D
INV CHNL STATION ON INIT SE
FILE-OPNL INTLK
PCH
DEY ENDING 1ST ON TAPE WR
NON-ZERO STATUS RESPONSE
PRT
OP IN DISC ON TAPE WR-MPX
TO SENSE COMMAND
STI
&
SVI ON TAPE NR-SX
FILE-UNIT
#
CK COMM OUT
LATE STACKER SELECT 1402
WS SENT LAST, NO WM THIS SX
42-43-NO ADDR COMP
1050 INTV REQ'D
STI
&
SVI ON READ MOVE-SX
42-43-INV MODIFIER
HALT
&
BRANCH
TAPE ERROR ON rPL
42-43-NO GMWM
ALTER-DISPLAY STOP
INY CHNL STAT FOR BR ON SXER
42 ERR ON RD OR PCH
1402 READER
E~ROR
STI
&
SVI ON READ LOAD-5X
OP IN DISC ON READ-MPX
PREMATURE END ON SENSE-MPX
OP IN DISC ON MODE SET -MPX
HALT-NO INV ADDR'"
HALT-INV B ' " ADDR"
HALT-INV A ADDR*
" THESE STOPS INDICATE EXECUTION OF THE 1401 HALT INSTRUCTION (.) WITH THE
STATUS OF THE A
&
B ADDRESSES THEN EXISTING SHOWN
8
9
A
MODE SW ATTEMPT
INV ADDR ON PMS TAPE OP
Figure 5-22.
R-Register Er.ror Bytes
3
4
5
6
7
INVALID A
&
B ADDRESS
INVALID OP CODE
INVALID I/O OP
MEMORY WRAP-HIGH
MEMORY PROTECT
SENSE SWITCH PERFORMED
HALT-INV A
&
B ADDR'"
,
C
D
E
F
MEMORY WRAP LOW
IJ=:ZERO
LOAD ADDR INVALID
IMPROPER INDEXING
NO A DV PRO G FEATURE
NON 1050 DATA CYCLE
NO OP WORD MARK
WM IN I/O A ADDR
START R$T PERFORMED
SET IC PERFOR.M.ED
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