Datasheet

SAM3X / SAM3A [DATASHEET]
Atmel-11057C-ATARM-SAM3X-SAM3A-Datasheet_23-Mar-15
148
10.18.8 NOP
No Operation.
10.18.8.1 Syntax
NOP{cond}
where:
cond is an optional condition code, see “Conditional execution” on page 91.
10.18.8.2 Operation
NOP does nothing. NOP is not necessarily a time-consuming NOP. The processor might remove it from the
pipeline before it reaches the execution stage.
Use NOP for padding, for example to place the following instruction on a 64-bit boundary.
10.18.8.3 Condition flags
This instruction does not change the flags.
10.18.8.4 Examples
NOP ; No operation
10.18.9 SEV
Send Event.
10.18.9.1 Syntax
SEV{cond}
where:
cond is an optional condition code, see “Conditional execution” on page 91.
10.18.9.2 Operation
SEV is a hint instruction that causes an event to be signaled to all processors within a multiprocessor system. It
also sets the local event register to 1, see “Power management” on page 80.
10.18.9.3 Condition flags
This instruction does not change the flags.
10.18.9.4 Examples
SEV ; Send Event