10.187 YIELD

Yield.

Syntax

YIELD{cond}
where:
cond
is an optional condition code.

Operation

This is a hint instruction. It is optional whether this instruction is implemented or not. If this instruction is not implemented, it executes as a NOP. The assembler produces a diagnostic message if the instruction executes as a NOP on the target.
YIELD executes as a NOP instruction in ARMv6T2.
YIELD indicates to the hardware that the current thread is performing a task, for example a spinlock, that can be swapped out. Hardware can use this hint to suspend and resume threads in a multithreading system.

Architectures

This ARM instruction is available in ARMv6K and above.
This 32-bit Thumb instruction is available in ARMv6T2 and above.
This 16-bit Thumb instruction is available in ARMv6T2 and above.
Related reference
10.67 NOP
10.8 Condition code suffixes
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