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Instruction Overview
Flags Affected
The Compare Accumulator instruction uses the values shown in
Table 11-2
in compare operations.
Table 11-2. Compare Accumulator Instruction Values
Comparison
Equal
Less than
Less than or equal
The following arithmetic status bits reside in the ASTAT register.
•
is set if the test condition is true; cleared if false.
CC
•
is set if result is zero; cleared if nonzero.
AZ
•
is set if result is negative; cleared if non-negative.
AN
•
is set if result generated a carry; cleared if no carry.
AC0
• All other flags are unaffected.
The ADSP-BF535 processor has fewer
operate differently than subsequent Blackfin family products. For
more information on the ADSP-BF535 status flags, see
on page
Required Mode
User & Supervisor
Parallel Issue
This instruction cannot be issued in parallel with other instructions.
11-10
ADSP-BF53x/BF56x Blackfin Processor Programming Reference
A-3.
Signed
AZ=1
AN=1
AN or AZ=1
flags and some flags
ASTAT
Table A-1
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