contains the basic defnitions for controlling the video hardware. More...

#include <nds/ndstypes.h>
#include <nds/arm9/sassert.h>

Macros
#define	ARGB16(a, r, g, b) ( ((a) << 15) \| (r)\|((g)<<5)\|((b)<<10))
	Macro to convert 5 bit r g b components plus 1 bit alpha into a single 16 bit ARGB triplet.

#define	BG_GFX ((u16*)0x6000000)
	background graphics memory

#define	BG_GFX_SUB ((u16*)0x6200000)
	background graphics memory (sub engine)

#define	BG_PALETTE ((u16*)0x05000000)
	background palette memory

#define	BG_PALETTE_SUB ((u16*)0x05000400)
	background palette memory (sub engine)

#define	OAM ((u16*)0x07000000)
	pointer to Object Attribute Memory

#define	OAM_SUB ((u16*)0x07000400)
	pointer to Object Attribute Memory (Sub engine)

#define	RGB15(r, g, b) ((r)\|((g)<<5)\|((b)<<10))
	Macro to convert 5 bit r g b components into a single 15 bit RGB triplet.

#define	SCREEN_HEIGHT 192
	Screen height in pixels.

#define	SCREEN_WIDTH 256
	Screen width in pixels.

#define	SPRITE_GFX ((u16*)0x6400000)
	sprite graphics memory

#define	SPRITE_GFX_SUB ((u16*)0x6600000)
	sprite graphics memory (sub engine)

#define	SPRITE_PALETTE ((u16*)0x05000200)
	sprite palette memory

#define	SPRITE_PALETTE_SUB ((u16*)0x05000600)
	sprite palette memory (sub engine)

#define	VRAM_A ((u16*)0x6800000)
	pointer to vram bank A mapped as LCD

#define	VRAM_B ((u16*)0x6820000)
	pointer to vram bank B mapped as LCD

#define	VRAM_C ((u16*)0x6840000)
	pointer to vram bank C mapped as LCD

#define	VRAM_D ((u16*)0x6860000)
	pointer to vram bank D mapped as LCD

#define	VRAM_E ((u16*)0x6880000)
	pointer to vram bank E mapped as LCD

#define	VRAM_E_EXT_PALETTE ((_ext_palette *)VRAM_E)
	Used for accessing vram E as an extended palette.

#define	VRAM_F ((u16*)0x6890000)
	pointer to vram bank F mapped as LCD

#define	VRAM_F_EXT_PALETTE ((_ext_palette *)VRAM_F)
	Used for accessing vram F as an extended palette.

#define	VRAM_F_EXT_SPR_PALETTE ((_palette *)VRAM_F)
	Used for accessing vram F as an extended sprite palette.

#define	VRAM_G ((u16*)0x6894000)
	pointer to vram bank G mapped as LCD

#define	VRAM_G_EXT_PALETTE ((_ext_palette *)VRAM_G)
	Used for accessing vram G as an extended palette.

#define	VRAM_G_EXT_SPR_PALETTE ((_palette *)VRAM_G)
	Used for accessing vram G as an extended sprite palette.

#define	VRAM_H ((u16*)0x6898000)
	pointer to vram bank H mapped as LCD

#define	VRAM_H_EXT_PALETTE ((_ext_palette *)VRAM_H)
	Used for accessing vram H as an extended palette.

#define	VRAM_I ((u16*)0x68A0000)
	pointer to vram bank I mapped as LCD

#define	VRAM_I_EXT_SPR_PALETTE ((_palette *)VRAM_I)
	Used for accessing vram I as an extended sprite palette.

Typedefs
typedef _palette	_ext_palette[16]
	An array of 16 256-color palettes.

typedef u16	_palette[256]
	an array of 256 15-bit RGB values

Enumerations

Functions
static void	setBackdropColor (const u16 color)
	sets the backdrop color of the main engine. More...

static void	setBackdropColorSub (const u16 color)
	sets the backdrop color of the sub engine. More...

void	setBrightness (int screen, int level)
	sets the screens brightness. More...

static bool	video3DEnabled ()
	determine if 3D is enabled More...

static void	videoBgDisable (int number)
	disables the specified background on the main engine More...

static void	videoBgDisableSub (int number)
	disables the specified background on the sub engine More...

static void	videoBgEnable (int number)
	enables the specified background on the main engine More...

static void	videoBgEnableSub (int number)
	enables the specified background on the sub engine More...

static int	videoGetMode ()
	return the main 2D engine video mode More...

static int	videoGetModeSub ()
	return the main 2D engine video mode More...

static void	videoSetMode (u32 mode)
	the main 2D engine video mode More...

static void	videoSetModeSub (u32 mode)
	the sub 2D engine video mode More...

u32	vramDefault ()
	Set VRAM banks to basic default. More...

void	vramRestoreBanks_EFG (u32 vramTemp)
	Restore the E,F,G bank modes. More...

void	vramRestorePrimaryBanks (u32 vramTemp)
	Restore the main 4 bank modes. More...

static void	vramSetBankA (VRAM_A_TYPE a)
	Set bank A to the indicated mapping. More...

static void	vramSetBankB (VRAM_B_TYPE b)
	Set bank B to the indicated mapping. More...

static void	vramSetBankC (VRAM_C_TYPE c)
	Set bank C to the indicated mapping. More...

static void	vramSetBankD (VRAM_D_TYPE d)
	Set bank D to the indicated mapping. More...

static void	vramSetBankE (VRAM_E_TYPE e)
	Set bank E to the indicated mapping. More...

static void	vramSetBankF (VRAM_F_TYPE f)
	Set bank F to the indicated mapping. More...

static void	vramSetBankG (VRAM_G_TYPE g)
	Set bank G to the indicated mapping. More...

static void	vramSetBankH (VRAM_H_TYPE h)
	Set bank H to the indicated mapping. More...

static void	vramSetBankI (VRAM_I_TYPE i)
	Set bank I to the indicated mapping. More...

u32	vramSetBanks_EFG (VRAM_E_TYPE e, VRAM_F_TYPE f, VRAM_G_TYPE g)
	Set E,F,G bank modes. More...

u32	vramSetPrimaryBanks (VRAM_A_TYPE a, VRAM_B_TYPE b, VRAM_C_TYPE c, VRAM_D_TYPE d)
	Set the main 4 bank modes. More...

Detailed Description

contains the basic defnitions for controlling the video hardware.

Intro

Video.h contains the basic defnitions for controlling the video hardware.

Video Ram Banks

The Nintendo DS has nine banks of video memory which may be put to a variety of uses. They can hold the graphics for your sprites, the textures for your 3D space ships, the tiles for your 2D platformer, or a direct map of pixels to render to the screen. Figuring out how to effectively utilize this flexible but limited amount of memory will be one the most challenging endeavors you will face early homebrew development.

The nine banks can be utilized as enumerated by the VRAM types. Banks are labeled A-I. In order to utilize 2D or 3D texture graphics, memory must be mapped for these purposes.

For instance: If you initialize a 2D background on the main engine you will be expected to define both an offset for its map data and an offset for its tile graphics (bitmapped backgrounds differ slightly). These offsets are referenced from the start of 2D background graphics memory. On the main display 2D background graphics begin at 0x6000000.

Without mapping a VRAM bank to this location data written to your background tile and map offsets will be lost.

VRAM banks can be mapped to specific addresses for specific purposes. In our case, any of the 4 main banks and several of the smaller ones can be mapped to the main 2D background engine.(A B C and D banks are referred to collectivly as main because they are 128KB and flexible in usage)

vramSetBankA(VRAM_A_MAIN_BG);

The above would map the 128KB of VRAM_A to 0x6000000 for use as main background graphics and maps (you can offset the mapping as well and the available offsets are defined in the VRAM_A_TYPE enumeration)

Video Ram Bank sizes

VRAM A: 128kb
VRAM B: 128kb
VRAM C: 128kb
VRAM D: 128kb
VRAM E: 64kb
VRAM F: 16kb
VRAM G: 16kb
VRAM H: 32kb
VRAM I: 16kb

Enumeration Type Documentation

enum VideoMode

The allowed video modes of the 2D processors

Main 2D engine
______________________________
|Mode | BG0 | BG1 | BG2 |BG3 |           T = Text
|  0  |  T  |  T  |  T  |  T |           R = Rotation
|  1  |  T  |  T  |  T  |  R |           E = Extended Rotation
|  2  |  T  |  T  |  R  |  R |           L = Large Bitmap background
|  3  |  T  |  T  |  T  |  E |
|  4  |  T  |  T  |  R  |  E |
|  5  |  T  |  T  |  E  |  E |
|  6  |     |  L  |     |    |
-----------------------------

Sub 2D engine
______________________________
|Mode | BG0 | BG1 | BG2 |BG3 |
|  0  |  T  |  T  |  T  |  T |
|  1  |  T  |  T  |  T  |  R |
|  2  |  T  |  T  |  R  |  R |
|  3  |  T  |  T  |  T  |  E |
|  4  |  T  |  T  |  R  |  E |
|  5  |  T  |  T  |  E  |  E |
-----------------------------

Enumerator
MODE_0_2D	4 2D backgrounds
MODE_1_2D	4 2D backgrounds
MODE_2_2D	4 2D backgrounds
MODE_3_2D	4 2D backgrounds
MODE_4_2D	4 2D backgrounds
MODE_5_2D	4 2D backgrounds
MODE_6_2D	4 2D backgrounds
MODE_0_3D	3 2D backgrounds 1 3D background (Main engine only)
MODE_1_3D	3 2D backgrounds 1 3D background (Main engine only)
MODE_2_3D	3 2D backgrounds 1 3D background (Main engine only)
MODE_3_3D	3 2D backgrounds 1 3D background (Main engine only)
MODE_4_3D	3 2D backgrounds 1 3D background (Main engine only)
MODE_5_3D	3 2D backgrounds 1 3D background (Main engine only)
MODE_6_3D	3 2D backgrounds 1 3D background (Main engine only)
MODE_FIFO	video display from main memory
MODE_FB0	video display directly from VRAM_A in LCD mode
MODE_FB1	video display directly from VRAM_B in LCD mode
MODE_FB2	video display directly from VRAM_C in LCD mode
MODE_FB3	video display directly from VRAM_D in LCD mode

enum VRAM_A_TYPE

Allowed VRAM bank A modes.

Enumerator
VRAM_A_LCD	maps vram a to lcd.
VRAM_A_MAIN_BG	maps vram a to main engine background slot 0.
VRAM_A_MAIN_BG_0x06000000	maps vram a to main engine background slot 0.
VRAM_A_MAIN_BG_0x06020000	maps vram a to main engine background slot 1.
VRAM_A_MAIN_BG_0x06040000	maps vram a to main engine background slot 2.
VRAM_A_MAIN_BG_0x06060000	maps vram a to main engine background slot 3.
VRAM_A_MAIN_SPRITE	maps vram a to main engine sprites slot 0.
VRAM_A_MAIN_SPRITE_0x06400000	maps vram a to main engine sprites slot 0.
VRAM_A_MAIN_SPRITE_0x06420000	maps vram a to main engine sprites slot 1.
VRAM_A_TEXTURE	maps vram a to 3d texture slot 0.
VRAM_A_TEXTURE_SLOT0	maps vram a to 3d texture slot 0.
VRAM_A_TEXTURE_SLOT1	maps vram a to 3d texture slot 1.
VRAM_A_TEXTURE_SLOT2	maps vram a to 3d texture slot 2.
VRAM_A_TEXTURE_SLOT3	maps vram a to 3d texture slot 3.

enum VRAM_B_TYPE

Allowed VRAM bank B modes.

Enumerator
VRAM_B_LCD	maps vram b to lcd.
VRAM_B_MAIN_BG	maps vram b to main engine background slot 1.
VRAM_B_MAIN_BG_0x06000000	maps vram b to main engine background slot 0.
VRAM_B_MAIN_BG_0x06020000	maps vram b to main engine background slot 1.
VRAM_B_MAIN_BG_0x06040000	maps vram b to main engine background slot 2.
VRAM_B_MAIN_BG_0x06060000	maps vram b to main engine background slot 3.
VRAM_B_MAIN_SPRITE	maps vram b to main engine sprites slot 0.
VRAM_B_MAIN_SPRITE_0x06400000	maps vram b to main engine sprites slot 0.
VRAM_B_MAIN_SPRITE_0x06420000	maps vram b to main engine sprites slot 1.
VRAM_B_TEXTURE	maps vram b to 3d texture slot 1.
VRAM_B_TEXTURE_SLOT0	maps vram b to 3d texture slot 0.
VRAM_B_TEXTURE_SLOT1	maps vram b to 3d texture slot 1.
VRAM_B_TEXTURE_SLOT2	maps vram b to 3d texture slot 2.
VRAM_B_TEXTURE_SLOT3	maps vram b to 3d texture slot 3.

enum VRAM_C_TYPE

Allowed VRAM bank C modes.

Enumerator
VRAM_C_LCD	maps vram c to lcd.
VRAM_C_MAIN_BG	maps vram c to main engine background slot 2.
VRAM_C_MAIN_BG_0x06000000	maps vram c to main engine background slot 0.
VRAM_C_MAIN_BG_0x06020000	maps vram c to main engine background slot 1.
VRAM_C_MAIN_BG_0x06040000	maps vram c to main engine background slot 2.
VRAM_C_MAIN_BG_0x06060000	maps vram c to main engine background slot 3.
VRAM_C_ARM7	maps vram c to ARM7 workram slot 0.
VRAM_C_ARM7_0x06000000	maps vram c to ARM7 workram slot 0.
VRAM_C_ARM7_0x06020000	maps vram c to ARM7 workram slot 1.
VRAM_C_SUB_BG	maps vram c to sub engine background slot 0.
VRAM_C_SUB_BG_0x06200000	maps vram c to sub engine background slot 0.
VRAM_C_TEXTURE	maps vram c to 3d texture slot 2.
VRAM_C_TEXTURE_SLOT0	maps vram c to 3d texture slot 0.
VRAM_C_TEXTURE_SLOT1	maps vram c to 3d texture slot 1.
VRAM_C_TEXTURE_SLOT2	maps vram c to 3d texture slot 2.
VRAM_C_TEXTURE_SLOT3	maps vram c to 3d texture slot 3.

enum VRAM_D_TYPE

Allowed VRAM bank D modes.

Enumerator
VRAM_D_LCD	maps vram d to lcd.
VRAM_D_MAIN_BG	maps vram d to main engine background slot 3.
VRAM_D_MAIN_BG_0x06000000	maps vram d to main engine background slot 0.
VRAM_D_MAIN_BG_0x06020000	maps vram d to main engine background slot 1.
VRAM_D_MAIN_BG_0x06040000	maps vram d to main engine background slot 2.
VRAM_D_MAIN_BG_0x06060000	maps vram d to main engine background slot 3.
VRAM_D_ARM7	maps vram d to ARM7 workram slot 1.
VRAM_D_ARM7_0x06000000	maps vram d to ARM7 workram slot 0.
VRAM_D_ARM7_0x06020000	maps vram d to ARM7 workram slot 1.
VRAM_D_SUB_SPRITE	maps vram d to sub engine sprites slot 0.
VRAM_D_TEXTURE	maps vram d to 3d texture slot 3.
VRAM_D_TEXTURE_SLOT0	maps vram d to 3d texture slot 0.
VRAM_D_TEXTURE_SLOT1	maps vram d to 3d texture slot 1.
VRAM_D_TEXTURE_SLOT2	maps vram d to 3d texture slot 2.
VRAM_D_TEXTURE_SLOT3	maps vram d to 3d texture slot 3.

enum VRAM_E_TYPE

Allowed VRAM bank E modes.

Enumerator
VRAM_E_LCD	maps vram e to lcd.
VRAM_E_MAIN_BG	maps vram e to main engine background first half of slot 0.
VRAM_E_MAIN_SPRITE	maps vram e to main engine sprites first half of slot 0.
VRAM_E_TEX_PALETTE	maps vram e to 3d texture palette slot 0-3.
VRAM_E_BG_EXT_PALETTE	maps vram e to main engine background extended palette.

enum VRAM_F_TYPE

Allowed VRAM bank F modes.

Enumerator
VRAM_F_LCD	maps vram f to lcd.
VRAM_F_MAIN_BG	maps vram f to main engine background first part of slot 0.
VRAM_F_MAIN_BG_0x06000000	maps vram f to main engine background first part of slot 0.
VRAM_F_MAIN_BG_0x06004000	maps vram f to main engine background second part of slot 0.
VRAM_F_MAIN_BG_0x06010000	maps vram f to main engine background second half of slot 0.
VRAM_F_MAIN_BG_0x06014000	maps vram f to main engine background second part of second half of slot 0.
VRAM_F_MAIN_SPRITE	maps vram f to main engine sprites first part of slot 0.
VRAM_F_MAIN_SPRITE_0x06400000	maps vram f to main engine sprites first part of slot 0.
VRAM_F_MAIN_SPRITE_0x06404000	maps vram f to main engine sprites second part of slot 0.
VRAM_F_MAIN_SPRITE_0x06410000	maps vram f to main engine sprites second half of slot 0.
VRAM_F_MAIN_SPRITE_0x06414000	maps vram f to main engine sprites second part of second half of slot 0.
VRAM_F_TEX_PALETTE	maps vram f to 3d texture palette slot 0.
VRAM_F_TEX_PALETTE_SLOT0	maps vram f to 3d texture palette slot 0.
VRAM_F_TEX_PALETTE_SLOT1	maps vram f to 3d texture palette slot 1.
VRAM_F_TEX_PALETTE_SLOT4	maps vram f to 3d texture palette slot 4.
VRAM_F_TEX_PALETTE_SLOT5	maps vram f to 3d texture palette slot 5.
VRAM_F_BG_EXT_PALETTE	maps vram f to main engine background extended palette slot 0 and 1.
VRAM_F_BG_EXT_PALETTE_SLOT01	maps vram f to main engine background extended palette slot 0 and 1.
VRAM_F_BG_EXT_PALETTE_SLOT23	maps vram f to main engine background extended palette slot 2 and 3.
VRAM_F_SPRITE_EXT_PALETTE	maps vram f to main engine sprites extended palette.

enum VRAM_G_TYPE

Allowed VRAM bank G modes.

Enumerator
VRAM_G_LCD	maps vram g to lcd.
VRAM_G_MAIN_BG	maps vram g to main engine background first part of slot 0.
VRAM_G_MAIN_BG_0x06000000	maps vram g to main engine background first part of slot 0.
VRAM_G_MAIN_BG_0x06004000	maps vram g to main engine background second part of slot 0.
VRAM_G_MAIN_BG_0x06010000	maps vram g to main engine background second half of slot 0.
VRAM_G_MAIN_BG_0x06014000	maps vram g to main engine background second part of second half of slot 0.
VRAM_G_MAIN_SPRITE	maps vram g to main engine sprites first part of slot 0.
VRAM_G_MAIN_SPRITE_0x06400000	maps vram g to main engine sprites first part of slot 0.
VRAM_G_MAIN_SPRITE_0x06404000	maps vram g to main engine sprites second part of slot 0.
VRAM_G_MAIN_SPRITE_0x06410000	maps vram g to main engine sprites second half of slot 0.
VRAM_G_MAIN_SPRITE_0x06414000	maps vram g to main engine sprites second part of second half of slot 0.
VRAM_G_TEX_PALETTE	maps vram g to 3d texture palette slot 0.
VRAM_G_TEX_PALETTE_SLOT0	maps vram g to 3d texture palette slot 0.
VRAM_G_TEX_PALETTE_SLOT1	maps vram g to 3d texture palette slot 1.
VRAM_G_TEX_PALETTE_SLOT4	maps vram g to 3d texture palette slot 4.
VRAM_G_TEX_PALETTE_SLOT5	maps vram g to 3d texture palette slot 5.
VRAM_G_BG_EXT_PALETTE	maps vram g to main engine background extended palette slot 0 and 1.
VRAM_G_BG_EXT_PALETTE_SLOT01	maps vram g to main engine background extended palette slot 0 and 1.
VRAM_G_BG_EXT_PALETTE_SLOT23	maps vram g to main engine background extended palette slot 2 and 3.
VRAM_G_SPRITE_EXT_PALETTE	maps vram g to main engine sprites extended palette.

enum VRAM_H_TYPE

Allowed VRAM bank H modes.

Enumerator
VRAM_H_LCD	maps vram h to lcd.
VRAM_H_SUB_BG	maps vram h to sub engine background first 2 parts of slot 0.
VRAM_H_SUB_BG_EXT_PALETTE	maps vram h to sub engine background extended palette.

enum VRAM_I_TYPE

Allowed VRAM bank I modes.

Enumerator
VRAM_I_LCD	maps vram i to lcd.
VRAM_I_SUB_BG_0x06208000	maps vram i to sub engine background thirth part of slot 0.
VRAM_I_SUB_SPRITE	maps vram i to sub engine sprites.
VRAM_I_SUB_SPRITE_EXT_PALETTE	maps vram i to sub engine sprites extended palette.

Function Documentation

static void setBackdropColor ( const u16 color )

inlinestatic

sets the backdrop color of the main engine.

the backdrop color is displayed when all pixels at a given location are transparent (no sprite or background is visible there).

Parameters

color the color that the backdrop of the main engine should display.

<background palette memory

static void setBackdropColorSub ( const u16 color )

inlinestatic

sets the backdrop color of the sub engine.

the backdrop color is displayed when all pixels at a given location are transparent (no sprite or background is visible there).

Parameters

color the color that the backdrop of the sub engine should display.

<background palette memory (sub engine)

void setBrightness	(	int	screen,
		int	level
	)

sets the screens brightness.

Parameters

screen	1 = main screen, 2 = subscreen, 3 = both
level	-16 = black, 0 = full brightness, 16 = white

static bool video3DEnabled ( )

inlinestatic

determine if 3D is enabled

Returns: true if 3D is enabled

static void videoBgDisable ( int number )

inlinestatic

disables the specified background on the main engine

Parameters

number the background number (0-3)

static void videoBgDisableSub ( int number )

inlinestatic

disables the specified background on the sub engine

Parameters

number the background number (0-3)

static void videoBgEnable ( int number )

inlinestatic

enables the specified background on the main engine

Parameters

number the background number (0-3)

static void videoBgEnableSub ( int number )

inlinestatic

enables the specified background on the sub engine

Parameters

number the background number (0-3)

static int videoGetMode ( )

inlinestatic

return the main 2D engine video mode

Returns: the video mode

static int videoGetModeSub ( )

inlinestatic

return the main 2D engine video mode

Returns: the video mode

static void videoSetMode ( u32 mode )

inlinestatic

the main 2D engine video mode

Parameters

mode	the video mode to set

static void videoSetModeSub ( u32 mode )

inlinestatic

the sub 2D engine video mode

Parameters

mode	the video mode to set

u32 vramDefault ( )

Set VRAM banks to basic default.

Returns: the previous settings

void vramRestoreBanks_EFG ( u32 vramTemp )

Restore the E,F,G bank modes.

Parameters

vramTemp restores the E,F,G bank modes to the value encoded in vramTemp (returned from vramSetBanks_EFG)

void vramRestorePrimaryBanks ( u32 vramTemp )

Restore the main 4 bank modes.

Parameters

vramTemp restores the main 4 banks to the value encoded in vramTemp (returned from vramSetMainBanks)

static void vramSetBankA ( VRAM_A_TYPE a )

inlinestatic

Set bank A to the indicated mapping.

Parameters

a	the mapping of the bank

static void vramSetBankB ( VRAM_B_TYPE b )

inlinestatic

Set bank B to the indicated mapping.

Parameters

b	the mapping of the bank

static void vramSetBankC ( VRAM_C_TYPE c )

inlinestatic

Set bank C to the indicated mapping.

Parameters

c	the mapping of the bank

static void vramSetBankD ( VRAM_D_TYPE d )

inlinestatic

Set bank D to the indicated mapping.

Parameters

d	the mapping of the bank

static void vramSetBankE ( VRAM_E_TYPE e )

inlinestatic

Set bank E to the indicated mapping.

Parameters

e	the mapping of the bank

static void vramSetBankF ( VRAM_F_TYPE f )

inlinestatic

Set bank F to the indicated mapping.

Parameters

f	the mapping of the bank

static void vramSetBankG ( VRAM_G_TYPE g )

inlinestatic

Set bank G to the indicated mapping.

Parameters

g	the mapping of the bank

static void vramSetBankH ( VRAM_H_TYPE h )

inlinestatic

Set bank H to the indicated mapping.

Parameters

h	the mapping of the bank

static void vramSetBankI ( VRAM_I_TYPE i )

inlinestatic

Set bank I to the indicated mapping.

Parameters

i	the mapping of the bank

u32 vramSetBanks_EFG	(	VRAM_E_TYPE	e,
		VRAM_F_TYPE	f,
		VRAM_G_TYPE	g
	)

Set E,F,G bank modes.

Parameters

e	mapping mode of VRAM_E
f	mapping mode of VRAM_F
g	mapping mode of VRAM_G

Returns: the previous mode

u32 vramSetPrimaryBanks	(	VRAM_A_TYPE	a,
		VRAM_B_TYPE	b,
		VRAM_C_TYPE	c,
		VRAM_D_TYPE	d
	)

Set the main 4 bank modes.

Parameters

a	mapping mode of VRAM_A
b	mapping mode of VRAM_B
c	mapping mode of VRAM_C
d	mapping mode of VRAM_D

Returns: the previous mode

Macros

Typedefs

Enumerations

Functions

Detailed Description

Intro

Video Ram Banks

Video Ram Bank sizes

Enumeration Type Documentation

Function Documentation