User guide

The MSTR Instruction
840 USE 115 00 Version 1.0
35
3.2.9 Peer Cop Health MSTR Operation
The peer cop health operation
(
t
y
pe 9 in the displa
y
ed re
g
ister of the top node
)
reads selected data from the peer cop communications health table and loads that
data to specified 4
x
re
g
isters in state RAM. The peer cop communications health
table is12 words lon
g
, and the words are indexed via this MSTR operation as words
0 ... 11.
Control Block
Utilization
The re
g
isters in the MSTR
control block
(
the top node
)
contain the information for a
Peer Cop Health operation as described in the followin
g
table:
Peer Cop
Communications
Health Status
Information
The peer cop communications health table
(
shown below
)
comprises 12
conti
g
uous re
g
ister that can be indexed in an MSTR operation as words 0 ... 11.
Each bit in each of the table words is used to represent an aspect of
communications health relative to a specific node on the TCP/IP network:
The bits in words 0 ... 3 represent the health of the
g
lobal input communication
expected from nodes 1 ... 64. Since
g
lobal input is not supported these bits are
set to zero.
The bits in words 4 ... 7 represent the health of the output from a specific node.
The bits in words 8 ... 11 represent the health of the input to a specific node.
Register Function Content
Displayed Operation Type 9
First implied Error status Displays a hex value indicatin
g
an MSTR error,
when relevant.
Second implied Data Size Number of words requested from peer cop table
(ran
g
e 1 ... 12).
Third implied Index First word from the table to be read (ran
g
e 0 ...
11, where 0 = the first word in the peer cop table
and 11 = the last word in the table).
Fourth implied Low byte Quantum backplane slot address of the NOE
module.
Fifth ... Ei
g
hth
implied
Destination Each re
g
ister contains one byte of the 32-bit IP
address.