#include <nitro/os.h>
void* OS_AllocFromArenaLo( OSArenaId id, u32 size, u32 alignment );
void* OS_AllocFromMainArenaLo( u32 size, u32 alignment ); void* OS_AllocFromSubPrivArenaLo( u32 size, u32 alignment ); void* OS_AllocFromMainExArenaLo( u32 size, u32 alignment ); void* OS_AllocFromITCMArenaLo( u32 size, u32 alignment ); void* OS_AllocFromDTCMArenaLo( u32 size, u32 alignment ); void* OS_AllocFromSharedArenaLo( u32 size, u32 alignment ); void* OS_AllocFromWramMainArenaLo( u32 size, u32 alignment ); void* OS_AllocFromWramSubArenaLo( u32 size, u32 alignment ); void* OS_AllocFromWramSubPrivArenaLo( u32 size, u32 alignment );
id | Arena ID |
size | Size to be reserved |
alignment | Alignment specification for the region's start address |
The start address of the reserved region.
This function reserves a region from the bottom of an arena. id
specifies an arena using an arena ID. For details on arena ID see OS_InitArena()
. For details on arena ID, see OS_InitArena()
. size
specifies the size to be reserved in bytes. alignment
specifies alignment for the reserved region. After the region is reserved, the arena's lower boundary address will be changed by the size of the region that was taken. Because no upward boundary check is performed, problems will occur if a region larger than the arena is reserved.
OS_AllocFromMainArenaLo
is the inline function for OS_AllocFromArenaLo( OS_ARENA_MAIN, ... )
.OS_AllocFromSubPrivArenaLo
is the inline function for OS_AllocFromArenaLo( OS_ARENA_MAIN_SUBPRIV, ... )
.OS_AllocFromMainExArenaLo
is the inline function for OS_AllocFromArenaLo( OS_ARENA_MAINEX, ... )
.OS_AllocFromITCMArenaLo
is the inline function for OS_AllocFromArenaLo( OS_ARENA_ITCM, ... )
.OS_AllocFromDTCMArenaLo
is the inline function for OS_AllocFromArenaLo( OS_ARENA_DTCM, ... )
.OS_AllocFromSharedArenaLo
is the inline function for OS_AllocFromArenaLo( OS_ARENA_SHARED, ... )
.OS_AllocFromWramMainArenaLo
is the inline function for OS_AllocFromArenaLo( OS_ARENA_WRAM_MAIN, ... )
.OS_AllocFromWramSubArenaLo
is the inline function for OS_AllocFromArenaLo( OS_ARENA_WRAM_SUB, ... )
.OS_AllocFromWramSubPrivArenaLo
is the inline function for OS_AllocFromArenaLo( OS_ARENA_WRAM_SUBPRIV, ... )
.
OS_InitArena, OS_AllocFromArenaHi
2004/02/19 Changed the number of arenas from 6 to 9.
2004/01/06 Initial version.
CONFIDENTIAL