# DC_InvalidateAll

## C Specification

      #include <nitro/os.h>

      void DC_InvalidateAll( void );

## Arguments

None.

## Return Values

None.

## Description

Invalidates the data in the entire data cache region

The official documentation for the ARM processor sometimes describes Flush as the operation that invalidates the data cache, Clean as the operation that writes back the data cache and puts it into a clean state, and Clean and Flush as the operation that writes back and then invalidates. However, this SDK follows the conventions of the Nintendo GameCube and Nintendo64 by using Invalidate for invalidation, Store for writeback, and Flush for writeback and invalidate operations.

## Internal Operation

Operates register 7 of the system control coprocessor.

## See Also

`IC_InvalidateAll`, `IC_InvalidateRange`, `DC_InvalidateRange`, `DC_StoreAll`, `DC_StoreRange`, `DC_FlushAll`, `DC_FlushRange`

## Revision History

12/22/2003 Initial version.

CONFIDENTIAL