Home » Nintendo Manuals » Video Game Consoles » Nintendo 1504166 » Manual Viewer

Nintendo 1504166 Programming Manual - Page 56

BG Mode 4 (256 colors, 240x160 dots, 2 frame buffers), VRAM address +060h

Add to My Manuals
Save this manual to your list of manuals

Page 56 highlights

AGB Programming Manual Rendering Functions 6.2.4.2 BG Mode 4 (256 colors, 240X160 dots, 2 frame buffers) Two frame buffers are allocated in VRAM, making this mode suitable for full-motion video. Of the total of 32,768 colors, 256 can be displayed simultaneously over the full screen. 1) Frame 0 0 1 2 3 4 0 0h 1h 2h 3h 4h 1 F0h F1h F2h F3h F4h 2 1E0h 1E1h 1E2h 1E3h 1E4h 3 2D0h 2D1h 2D2h 2D3h 2D4h 4 3C0h 3C1h 3C2h 3C3h 3C4h 236 ECh 1DCh 2CCh 3BCh 4ACh 237 EDh 1DDh 2CDh 3BDh 4ADh 238 EEh 1DEh 2CEh 3BEh 4AEh 239 EFh 1DFh 2CFh 3BFh 4AFh 156 9240h 9241h 9242h 9243h 9244h 157 9330h 9331h 9332h 9333h 9334h 158 9420h 9421h 9422h 9423h 9424h 159 9510h 9511h 9512h 9513h 9514h 2) Frame 1 0 1 2 3 4 0 A000h A001h A002h A003h A004h 1 A0F0h A0F1h A0F2h A0F3h A0F4h 2 A1E0h A1E1h A1E2h A1E3h A1E4h 3 A2D0h A2D1h A2D2h A2D3h A2D4h 4 A3C0h A3C1h A3C2h A3C3h A3C4h 932Ch 932Dh 932Eh 932Fh 941Ch 941Dh 941Eh 941Fh 950Ch 950Dh 950Eh 950Fh 95FCh 95FDh 95FEh 95FFh VRAM address (+06000000h) 236 A0ECh A1DCh A2CCh A3BCh A4ACh 237 A0EDh A1DDh A2CDh A3BDh A4ADh 238 A0EEh A1DEh A2CEh A3BEh A4AEh 239 A0EFh A1DFh A2CFh A3BFh A4AFh 156 13240h 13241h 13242h 13243h 13244h 157 13330h 13331h 13332h 13333h 13334h 158 13420h 13421h 13422h 13423h 13424h 159 13510h 13511h 13512h 13513h 13514h 1332Ch 1332Dh 1332Eh 1332Fh 1341Ch 1341Dh 1341Eh 1341Fh 1350Ch 1350Dh 1350Eh 1350Fh 135FCh 135FDh 135FEh 135FFh VRAM address (+06000000h) ©1999 - 2001 Nintendo of America Inc. 56 D.C.N. AGB-06-0001-002B4

Section	Page
Introduction	3
Revision History	4
Table of Contents	9
Using This Manual	12
1 AGB System	13
1.1 System Overview	13
2 System Configuration	15
2.1 CPU Block Diagram	15
2.2 Complete Block Diagram	16
2.3 Memory Configuration and Access Width	17
2.4 Little-Endian	17
3 AGB Memory	18
3.1 Overall Memory Map	18
3.2 Memory Configuration	19
3.2.1 AGB Internal Memory	19
3.2.2 Game Pak Memory	20
3.3 Game Pak Memory Wait Control	21
3.3.1 Access Timing	23
3.3.2 Game Pak Bus	24
4 LCD	25
4.1 LCD Status	26
4.1.1 V Counter	26
4.1.2 General LCD Status	27
5 Image System	29
5.1 BG Modes	31
5.1.1 Details of BG Modes	31
5.1.2 VRAM Memory Map	32
6 Rendering Functions	33
6.1 Character Mode BG (BG Modes 0-2)	33
6.1.1 BG Control	33
6.1.2 Mosaic Size	39
6.1.3 VRAM Address Mapping of BG Data	40
6.1.4 Character Data Format	42
6.1.5 BG Screen Data Format	43
6.1.6 BG Screen Data Address Mapping for the LCD Screen	45
6.1.7 BG Rotation and Scaling Features	49
6.1.8 BG Scrolling	52
6.2 Bitmap Mode BGs (BG Modes 3-5)	53
6.2.1 BG Control	53
6.2.2 BG Rotation/Scaling	54
6.2.3 Pixel Data	54
6.2.4 Pixel Data Address Mapping for the LCD Screen	55
6.2.4.1 BG Mode 3 (32,768 colors,240x160 dots,1 frame buffer)	55
6.2.4.2 BG Mode 4 (256 colors,240x160 dots,2 frame buffers)	56
6.2.4.3 BG Mode 5 (32,768 colors,160x128 dots,2 frame buffers)	57
6.3 OBJ (Object)	58
6.3.1 OBJ Function Overview	58
6.3.2 Character Data Mapping	60
6.3.3 OAM	62
6.3.4 OBJ Rotation/Scaling Feature	70
6.4 Display Priority of OBJ and BG	72
7 Color Palettes	73
7.1 Color Palette Overview	73
7.2 Color Palette RAM	74
7.3 Color Data Format	76
8 Window Feature	77
8.1 Window Position Setting	77
8.2 Window Control	78
9 Color Special Effects	80
9.1 Selection of Color Special Effects	80
9.2 Color Special Effects Processing	82
10 Sound	84
10.1 Sound Block Diagram	84
10.2 Direct Sounds A and B	85
10.3 Sound 1	87
10.4 Sound 2	91
10.5 Sound 3	93
10.6 Sound 4	97
10.7 Sound Control	100
10.8 Sound PWM Control	104
11 Timer	106
12 DMA Transfer	108
12.1 DMA 0	109
12.2 DMA 1 and 2	113
12.3 DMA 3	117
12.4 DMA Problems: How to avoid them	122
13 Communication Functions	125
13.1 8-Bit/32-Bit Normal Serial Communication	128
13.2 16-Bit Multi-player Communication	134
13.3 UART Communication Functions	142
13.4 General Purpose Communication	148
13.5 JOY Bus Communication	150
13.6 AGB Game Link Cable	154
14 Key Input	155
14.1 Key Status	155
14.2 Key Interrupt Control	155
14.2.1 Interrupt Conditions	156
15 Interrupt Control	157
15.1 System-Allocated Area in Work RAM	159
15.2 Interrupt Operation	160
15.2.1 Normal Interrupt	160
15.2.2 Multiple Interrupts	161
16 Power-Down Functions	163
16.1 Stop Function	163
16.2 Halt Function	164
17 AGB System Calls	165
17.1 System Call Operation	165
17.1.1 Normal Calls	165
17.1.2 Multiple Calls	167

Match case Limit results 1 per page

AGB Programming Manual

Rendering Functions

D.C.N. AGB-06-0001-002B4

6.2.4.2 BG Mode 4 (256 colors, 240X160 dots, 2 frame buffers)

Two frame buffers are allocated in VRAM, making this mode suitable for

full-motion video.

Of the total of 32,768 colors, 256 can be displayed

simultaneously over the full screen.

1) Frame 0

236

237

238

239

ECh

EDh

EEh

EFh

F0h

F1h

F2h

F3h

F4h

1DCh

1DDh

1DEh

1DFh

1E0h

1E1h

1E2h

1E3h

1E4h

2CCh

2CDh

2CEh

2CFh

2D0h

2D1h

2D2h

2D3h

2D4h

3BCh

3BDh

3BEh

3BFh

3C0h

3C1h

3C2h

3C3h

3C4h

4ACh

4ADh

4AEh

4AFh

156

9240h

9241h

9242h

9243h

9244h

932Ch

932Dh

932Eh

932Fh

157

9330h

9331h

9332h

9333h

9334h

941Ch

941Dh

941Eh

941Fh

158

9420h

9421h

9422h

9423h

9424h

950Ch

950Dh

950Eh

950Fh

159

9510h

9511h

9512h

9513h

9514h

95FCh

95FDh

95FEh

95FFh

VRAM address (+06000000h)

2) Frame 1

236

237

238

239

A000h

A001h

A002h

A003h

A004h

A0ECh

A0EDh

A0EEh

A0EFh

A0F0h

A0F1h

A0F2h

A0F3h

A0F4h

A1DCh

A1DDh

A1DEh

A1DFh

A1E0h

A1E1h

A1E2h

A1E3h

A1E4h

A2CCh

A2CDh

A2CEh

A2CFh

A2D0h

A2D1h

A2D2h

A2D3h

A2D4h

A3BCh

A3BDh

A3BEh

A3BFh

A3C0h

A3C1h

A3C2h

A3C3h

A3C4h

A4ACh

A4ADh

A4AEh

A4AFh

156

13240h

13241h

13242h

13243h

13244h

1332Ch

1332Dh

1332Eh

1332Fh

157

13330h

13331h

13332h

13333h

13334h

1341Ch

1341Dh

1341Eh

1341Fh

158

13420h

13421h

13422h

13423h

13424h

1350Ch

1350Dh

1350Eh

1350Fh

159

13510h

13511h

13512h

13513h

13514h

135FCh

135FDh

135FEh

135FFh

VRAM address (+06000000h)