MdePkg/Library/BaseSynchronizationLib/Ia32/InterlockedDecrement.c File Reference


Functions

UINT32 EFIAPI InternalSyncDecrement (IN UINT32 *Value)

Detailed Description

InterlockedDecrement function

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Function Documentation

UINT32 EFIAPI InternalSyncDecrement ( IN UINT32 Value  ) 

Performs an atomic decrement of an 32-bit unsigned integer.

Performs an atomic decrement of the 32-bit unsigned integer specified by Value and returns the decrement value. The decrement operation must be performed using MP safe mechanisms. The state of the return value is not guaranteed to be MP safe.

Parameters:
Value A pointer to the 32-bit value to decrement.
Returns:
The decrement value.

References eax, and mov.


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