15 Instruction Set Reference
15 –20
15.10.3 Status Register Notation
The following notation is used in the discussion of the effect each
instruction has on the processors’ status registers:
* An asterisk indicates a bit in the status word that is changed by
the execution of the instruction.
– A dash indicates that a bit is not affected by the instruction.
0 or 1 Indicates that a bit is unconditionally cleared or set.
For example, the status word ASTAT is shown below:
ASTAT: 7 6 543210
SS MV AQ AS AC AV AN AZ
–*–––0––
Here the MV bit is updated and the AV bit is cleared.
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