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TYPE:
A
c
D
(Any) The search address given in column 3 is
compared with all addresses used in the system.
(Instr Count) The search address is compared
with addresses used for fetching instructions
only.
(Data Store) The search address is compared only
with addresses used to store data.
(1/0 Data) The search address is compared only
with addresses used in transferring data between
main storage and 1/0 devices.
5.
Enter the search address under STORAGE ADDRESS.
This
can be up to six hexadecimal characters.
If you enter
less than six digits, the processor supplies the
appropriate number of leading zeros to make a six-digit
number.
Error Messages:
• INVALID CHARACTER is displayed if you enter either an
incorrect selector character or a non-hexadecimal
character as address.
• INVALID ADDRESS appears if you specify an address
that is outside main storage size.
• INCOMPLETE ENTRY is displayed, and the cursor is set
below the next character if, during fast selection,
you specify incomplete specifications.
6.
Press ENTER. The 'address compare' display disappears
from the screen, and your specifications are displayed
in line 22 of the Machine Status Area as a reminder that
address compare mode is set.
7. The processor stops after completion of the instruction
that was in progress when the address match occurred.
The effect is the same as if the stop key had been
pressed. When the start key is subsequently pressed,
processing continues with the next sequential
instruction.
With instruction count mode set as address compare
criterion, the processor-st°ops always at the completion
of the instruction that caused the address match.
When the location of a branch instruction is the address
compare target, the stop occurs at the completion of the
branch instruction, that is, after the branch (if any)
is taken. When the start key is subsequently pressed,
operations resume at the next sequential instruction if
no branch was taken, or at the branch address when the
branch was taken.
3 -
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43 31 Processor Operators Guide
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