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9b53b.txt
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9B53B
3/1/61
PAGE 1
WORST CASE B TIME TEST
A. PURPOSE OF TEST
1. Test maximum delay in B TIME and the 7090 channel priority
circuit.
B. METHOD OF TEST
1. A test of TAU operations is made on each channel selected.
2. A B TIME with concurrent ORS instruction execution test is made
to check specifically and -AND circuit 3F on systems page 2.09.00.1
3. 100 octal records consisting of 100 octal words are written, back-
spaced, read and checked for errors on TAPE UNIT 2 CHANNEL A
and TAPE UNIT 1 on each of the other channels selected.
4. If sense switch 5 is down, the program continuously stores the
channel contents while reading information from tape.
C. MACHINE UNITS AND STORAGE AREA
1. Units
a. Card reader of tape unit 1 on channel A for loading
b. Main frame
c. Core frame
d. Tape unit 2 on channel A and tape unit 1 on each of the other
channels to be tested.
2. Storage Locations
a. 00030-06606 9B53B
b. 75300-76340 9IOCA
c. 76400-77710 9DEPRX
9B53B
3/1/61
PAGE 2
D. PROGRAM CONTROL
1. Deck
a. 000 9LD01A Low end loader
b. 001-084 9B53B
c. 085-109 9IOCA
d. 110-141 9DEPRX
e. 142 Transfer card - TRA 00030
f. 143-144 2 blank cards
2. Sense Switch Control
a. Use of sense switches 1 through 4 are as outlined in DEPRX.
b. Sense Switch 5 Up - Initially make 1 pass through entire
program except for continuous STORE
CHANNEL section and check sense switch 6.
c. Sense Switch 5 Dn - Repeat continuous STORE CHANNEL
routines.
d. Sense Switch 6 Up - Load next program.
e. Sense Switch 6 Dn - Repeat test (see section H-3)
E. NORMAL STOPS
1. 75320 - Enter keys for tape units on channels A-D
2. 75334 - Enter keys for tape units on channels E-H
F. ERROR STOPS
1. 01436 - No tape units selected; press start to return to IOC.
2. 02163 - Consult listing at this location for comments to aid
in diagnosing error.
9B53B
3/1/61
PAGE 3
3. 75326 - Control word entered at location 75320 contained no tag
bits for channels.
4. 76471 - Error while executing routines of 9B53.
G. PRINTOUTS
1. Program identification is printed on the initial pass with sense
switch 3 up.
2. Pass complete is printed for each pass through program with
sense switches 3 up and 6 down.
3. For errors while executing routines of 9B53, DEPRX printouts
will result with sense switch 3 up.
H. COMMENTS
1. For worst case test use 729 MOD IV tape frames.
2. If the contents of any channel becomes larger than it should, the
channel will be reset and a halt will occur. The comments in the
listing following location 02162 may be an aid in determining the
trouble.
3. With sense switch 5 up and 6 down, the return is to the beginning
of the program. To repeat the TAU operations and B TIME-ORS
tests, manually store a NOP instruction in location 00542 or the
above tests will be omitted after the initial pass.
4. For TAU operations and B TIME-ORS tests, only TAPE UNIT 2
on CHANNEL A is used but any number of units can be called for
on other channels selected.
5. For WORST CASE routines, TAPE UNIT 2 on CHANNEL A and
TAPE UNIT 1 on all other channels selected are the only drives
used.
6. The sign key is used to designate the type of loading for the simulated
load button sequence under sense switch 6 control.
7. To write this card deck program on a diagnostic program tape, only
the loader must be replaced.
9B53B
3/1/61
PAGE 4
8. Consult write-ups of DEPRX and 9IOCA for details on error
halt or printouts and I/O unit selection.
9. The release of this program obsoletes 9B53A.
\l
File Attachments: Source \Asource\a Cards \Acard\a Deck \Adeck\a