Cross-platform Burst intrinsics

Overview of the Burst.Intrinsics.Common class, which provides functionality shared across the hardware targets that Burst supports.

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The

Unity.Burst.Intrinsics.Common

intrinsics are for functionality shared across the hardware targets that Burst supports.

Pause

Unity.Burst.Intrinsics.Common.Pause

is an intrinsic that requests that the CPU pause the current thread. It maps to

pause

on x86, and

yield

on ARM.

Use it to stop spin locks over contending on an atomic access, which reduces contention and power on that section of code.

Prefetch

The

Unity.Burst.Intrinsics.Common.Prefetch

is an intrinsic that provides a hint that Burst should prefetch the memory location into the cache.

umul128

Use the

Unity.Burst.Intrinsics.Common.umul128

intrinsic to access 128-bit unsigned multiplication. These multiplies are useful for hashing functions. It maps 1:1 with hardware instructions on x86 and ARM targets.

InterlockedAnd & InterlockedOr

The

Unity.Burst.Intrinsics.Common.InterlockedAnd

and

Unity.Burst.Intrinsics.Common.InterlockedOr

are intrinsics that provides atomic and/or operations on

int

uint

long

, and

ulong

types.

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