MI_CpuFind*

Syntax

#include <nitro/mi.h>

void* MI_CpuFind8( const void* src, u8 data, u32 size );
void* MI_CpuFind16( const void* src, u16 data, u32 size );
void* MI_CpuFind32( const void* src, u32 data, u32 size );

Arguments

src Source address to search.
data Data to search for.
size Search size.

Return Values

If the data being searched for was found, it returns a pointer to that location. NULL is returned if the address is not found.

Description

Searches through memory in the CPU for the specified data.

MI_CpuFind8() selects the most efficient memory access based on the source address to search, and appropriately searches through the memory for the specified data in 16-bit or 32-bit units. The alignment of the source address to search does not need to be considered.

MI_CpuFind16() searches through the memory for the specified data in 16-bit units. The source address to search must be 2-byte aligned.

MI_CpuFind32() searches through the memory for the specified data in 32-bit units. The source address to search must be 4-byte aligned.

Internal Operation

Processing is done by the CPU only and does not use the DMA controller. It does not use a system call. MI_CpuFind8 also performs reads in units of 16/32 bits, so accessing VRAM directly will not cause problems.

See Also

Revision History

2007/12/10 Initial version.


CONFIDENTIAL