#include <nitro/os.h>
void IC_InvalidateRange( void* startAddr, u32 nBytes );
startAddr | Lowest address in the region to be invalidated |
nBytes | Number of bytes of the region to be invalidated |
None.
Invalidates the instruction code of the specified region in the instruction cache
startAddr
is rounded down to the closest 32-byte boundary. startAddr
+ nBytes
is rounded up to the closest 32-byte boundary.
The official documentation for the ARM processor sometimes describes Flush as the operation that invalidates the cache. However, this SDK follows the conventions of the Nintendo GameCube and Nintendo64 by using Invalidate for invalidation.
Operates register 7 of the system control coprocessor. This function divides the specified range into cache-line units and repeats its operation. Thus the amount of time it takes is proportional to the size of the range.
IC_InvalidateAll
, DC_InvalidateAll
, DC_InvalidateRange
, DC_StoreAll
, DC_StoreRange
, DC_FlushAll
, DC_FlushRange
04/19/2005 Added note explaining that processing time is proportional to the size of the range.
12/22/2003 Initial version.