GX_SetBankForSubBG

Syntax

#include <nitro/gx/gx_vramcnt.h>

void GX_SetBankForSubBG(GXVRamSubBG bg);

Arguments

bg   Specifies a VRAM bank to allocate to the sub 2D Engine's BG

Return Values

None.

Description

This function allocates the specified VRAM bank to the sub 2D Engine's BG. If the specified VRAM bank is either disabled or allocated to LCDC, that VRAM bank is allocated to the sub 2D Engine BG.

GX_VRAM_SUB_BG_NONE VRAM bank is not allocated to BG.
GX_VRAM_SUB_BG_128_C 128 KB are reserved in BG. VRAM-C is allocated.
GX_VRAM_SUB_BG_32_H 32 KB are reserved in BG. VRAM-H is allocated.
GX_VRAM_SUB_BG_48_HI 48 KB are reserved in BG. VRAM-H and -I are allocated.

The following is the type definition for GXVRamSubBG types.

typedef enum
{
    GX_VRAM_SUB_BG_NONE = 0x0000,
    GX_VRAM_SUB_BG_128_C = GX_VRAM_C,
    GX_VRAM_SUB_BG_32_H = GX_VRAM_H,
    GX_VRAM_SUB_BG_48_HI = GX_VRAM_H | GX_VRAM_I
}
GXVRamSubBG;

See Also

GX_GetBankForSubBG, GX_ResetBankForSubBG, GX_DisableBankForSubBG, GX_GetSizeOfSubBG

Revision History

2004/02/09 Initial version.


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