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Syntax: [ IF cond ] SET FLAG_OUT [, …] ;
RESET FL0
TOGGLE FL1
FL2
Example: IF MV SET FLAG_OUT, RESET FL1;
Description: Evaluate the optional condition and if true, set to one,
reset to zero, or toggle the state of the specified flag output pin(s).
Otherwise perform a no-operation and continue with the next instruction.
Omitting the condition performs the operation unconditionally. Multiple
flags may be modified by including multiple clauses, separated by
commas, in a single instruction. This instruction does not directly alter the
flow of your program—it is provided to signal external devices.
(Note that the FO pin is specified by “FLAG_OUT” in the instruction
syntax.)
The following table shows which flag outputs are present on each
ADSP-21xx processor:
processor flag pin(s)
ADSP-2101 FO
ADSP-2105 FO
ADSP-2115 FO
ADSP-2111 FO, FL0, FL1, FL2
ADSP-217x FO, FL0, FL1, FL2
ADSP-218x FO, FL0, FL1, FL2
ADSP-21msp5x FO, FL0, FL1, FL2
Status Generated: None affected.
Instruction Field:
Flag Out Mode Control Instruction Type 28:
23 22 21 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0
0 0 0 0 0 0 1 0 0 0 0 0 FO FO FO FO COND
FL2 FL1 FL0 FLAG_OUT
FO: Operation to perform COND: Condition code
on flag output pin
PROGRAM FLOW
MODIFY FLAG OUT PIN
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