Routine
Expected Error
Number
Description
Information
Code
Meaning
(
BT22 Sense Test XX Returns the sense byte from the tape
unit.
BT23
Write
Read
Test - Writes and XXX ... XX (up
to
Returned data is the correct data
if
reads the data in the
MASK
field
twelve
2-digit
bytes) there is no error, or the first data
to
on the display onto tape. miscompare
if
there is
an
error. For
(
example,
if
the data 012345 is the
expected data,
012345012345012345 ... ,
for
a total
of
512 bytes is written onto tape, where
01
is one byte, 23 the next byte and
45 the next byte, then repeat.
If
the
f
data on tape is
012345012345012345012345
ABCOEF, ABCOEF is returned
as
RCVO
on the display so that all 512
bytes need not
be
displayed.
BT30
Peak
Shift Test on Track 1 -
><XXX
to
><XXX
The data returned is the even average
Returns the track 1 data generated
(4-digit
decimal and odd average bit time
for
track 1
during routine BT48. BT48 runs number computed
to
in microseconds (see BT34).
now
if it
was not run previously.
two
decimal places)
BT31
Symmetry Test on Track 1 -
><XXX
to
><XXX
The data returned is the even average
Returns the track 1 data generated
(4-digit
decimal and odd average bit time
for
track 1
during routine BT47. BT47 runs number computed
to
in microseconds (see BT34).
now
if
it
was not run previously.
two
decimal places)
(
BT34
(See
note) Return
Oata
to
MOl
for
All data is in decimal microseconds.
Test Spec Function - This test is For example,
if
the averages
not
an
MOl routine but a
calculated are 33.00 (even average)
subroutine
of
BT47, BT48, BT30,
and 34.05 (odd average) and the
and BT31. This test generates
an
permissible difference is 3.0, the
even average number and puts it information displayed is:
into the first 4 digits
of
the MASK.
A high number is generated by
TEST - Within limits
adding the permissible difference
MASK
-
3300-3600
to
the
low
average number and
RCVO
-
3405
putting this in the last 4 digits
of
the MASK. The program also
generates
an
odd average number
:(
into the
RCVO.
Bits:
T1
T2
T3
T4
T5
T6
Odd
average
=
average
of
T1, T3, T5, etc
Even
average
=
average
of
(/
T2, T4, T6, etc
Note:
Not accessible from
MOl
('
\
Diagnostic Program Routines
3,49
To Next Page
Loading...
Need help?
General
