Datasheet

217
SAM4E [DATASHEET]
Atmel-11157D-ATARM-SAM4E16-SAM4E8-Datasheet_12-Jun-14
12.6.12.9 SEV
Send Event.
Syntax
SEV{cond}
where:
cond is an optional condition code, see “Conditional Execution” .
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” .
Condition Flags
This instruction does not change the flags.
Examples
SEV ; Send Event
12.6.12.10 SVC
Supervisor Call.
Syntax
SVC{cond} #imm
where:
cond is an optional condition code, see “Conditional Execution” .
imm is an expression evaluating to an integer in the range 0-255 (8-bit value).
Operation
The SVC instruction causes the SVC exception.
imm is ignored by the processor. If required, it can be retrieved by the exception handler to determine what service
is being requested.
Condition Flags
This instruction does not change the flags.
Examples
SVC 0x32 ; Supervisor Call (SVC handler can extract the immediate value
; by locating it via the stacked PC)