PM0214 datasheet(175/245 Pages) STMICROELECTRONICS

Part #	PM0214

Description	This programming manual provides information

PDF	245 Pages

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Manufacturer	STMICROELECTRONICS [STMicroelectronics]

Direct Link	http://www.st.com

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DocID022708 Rev 4

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PM0214

The STM32 Cortex-M4 instruction set

244

3.11.8

NOP

No Operation.

Syntax

NOP{cond}

where:

•

‘cond’ is an optional condition code, see Conditional execution on page 64.

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.

Condition flags

This instruction does not change the flags.

Examples

NOP

; No operation

3.11.9

SEV

Send Event.

Syntax

SEV{cond}

where:

•

‘cond’ is an optional condition code, see Conditional execution on page 64.

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 46.

Condition flags

This instruction does not change the flags.

Examples

SEV ; Send Event

PM0214 Datasheet(PDF) 175 Page - STMicroelectronics