libnds has fixed the datatypes of pretty much all registers and have moved to the GBATek nomenclature for the BG-related registers. The list has been updated to match the libnds v1.3.1. of
[/note]The state of register names for NDS homebrew is a bit of a mess. First, there are the GBATek names. Since GBATek is considered the source of GBA/NDS information, it would make sense to adhere to those names pretty closely. But, of course, that's not how actually is in the de facto library for NDS homebrew, libnds.
libnds has two sets of names. This probably is a result of serving
different masters in its early days. One set uses
Mappy's nomenclature.
That's the one without the REG_ in front of it, and
uses things like _CR, and _SR. This is
one you're most likely to see in the current NDS tutorials.
The second set uses GBATek's names (mostly) plus a REG_
prefix. If you've done GBA programming, these should feel quite
familiar.
For the most part, I don't really care much for the the Mappy names.
One reason for this is that they don't match up with the GBATek names,
making it harder to look-up what they do. More importantly, though,
without any sort of prefix that indicates they're registers, they all
look like the constants you put in the
registers. After all, that's what all-caps usually means: a constant.
When I see the identifier WIN0_X0, I'm more likely to
think that it's something to set a window coordinate to, rather
than that it is how to control the window. Having to wonder constantly
whether a particular identifier is a constant or a register is pretty
annoying[fnote]See also BG_TILE_BASE and
BG_TILE_RAM, for the REG_BGxCNT macro and
the VRAM address, respectively. Yeah, you can tell because obviously
RAM means memory, but it's still an easy mistake to make, especially
since the VRAM areas are called “base” as well.[/fnote].
But perhaps this is just me.
What's especially grating about these names is that the elements of
the affine matrix
are transposed. HDY is actually VDX and vice
versa. Shame, actually, because the HDX-VDY naming
scheme does make more sense than old PA-PD names.
The elements XDY and YDX are also transposed
… I think. It's hard to be sure since this nomenclature is highly
ambiguous anyway. I really can't tell how the elements are supposed to
be read, much less determine if they are in the correct order.
The REG_ registers do not suffer from those problems, but
they have their own issues. The registers that had a GBA counterpart
are generally okay, but in the case of the NDS-specific ones, some
follow the GBATek names, some almost follow them
(MTX_LOAD_4x4 vs REG_MTX_LOAD4x4, for
example; note the underscores), and some are the Mappy-like names
plus prefix.
Finally, registers of both nomenclatures are grouped by topic and not necessarily by address. This makes sense from an OOP point of view, but it does mean they have been sprinkled across multiple files, making it tricky to see where the things are acrually defined. Some named are also clumped inside registers_alt.h, which is a sort of transitional file. This file is not included by nds.h, which can make it hard to know which names are included or not until you either search though the whole include hierarchy or get an error from the compiler. And then have to search the hierarchy to find out the exact spelling.
[br]To make it a little easier to deal with the fragmentation of the libnds headers regarding registers, here is a list of all the registers as they appear in GBATek, the primary libnds set (plus the file where they're defined), and the alternate libnds set (registers_alt.h). I've also included links to where you can find the descriptions in GBATek.
- The bold black names are those corresponding exactly to GBATek.
- The bold red items are problematic in some way; usually the datatype is not what is should be, or some registers have been swapped somehow. Follow the footnotes or hover over them to see my comments. Note that some of these are already fixed in CVS.
- Sometimes there are gaps. In this case, that particular set has no name for it.
| GBATek / official | libnds primary | libnds alternate | ||||||
|---|---|---|---|---|---|---|---|---|
| addr | size | name | name | file | type | name | type | name |
| 0400:0000 | 4 | DISPCNT | R/W | arm9/video.h | vu32 | REG_DISPCNT | vu32 | DISPLAY_CR |
| 0400:0004 | 2 | DISPSTAT | R/W | system.h | vu16 | REG_DISPSTAT | vu16 | DISP_SR |
| 0400:0006 | 2 | VCOUNT | R/W | system.h | vu16 | REG_VCOUNT | vu16 | DISP_Y |
| 0400:0008 | arm9/background.h | bg_attribute | BACKGROUND | |||||
| 0400:0008 | arm9/background.h | vu16 | BGCTRL[ ] | |||||
| 0400:0008 | 2 | BG0CNT | R/W | arm9/background.h | vu16 | REG_BG0CNT | vu16 | BG0_CR |
| 0400:000A | 2 | BG1CNT | R/W | arm9/background.h | vu16 | REG_BG1CNT | vu16 | BG1_CR |
| 0400:000C | 2 | BG2CNT | R/W | arm9/background.h | vu16 | REG_BG2CNT | vu16 | BG2_CR |
| 0400:000E | 2 | BG3CNT | R/W | arm9/background.h | vu16 | REG_BG3CNT | vu16 | BG3_CR |
| 0400:0010 | arm9/background.h | vu16 | REG_BGOFFSETS[ ] | |||||
| 0400:0010 | 2 | BG0HOFS | W | arm9/background.h | vu16 | REG_BG0HOFS | vu16 | BG0_X0 |
| 0400:0012 | 2 | BG0VOFS | W | arm9/background.h | vu16 | REG_BG0VOFS | vu16 | BG0_Y0 |
| 0400:0014 | 2 | BG1HOFS | W | arm9/background.h | vu16 | REG_BG1HOFS | vu16 | BG1_X0 |
| 0400:0016 | 2 | BG1VOFS | W | arm9/background.h | vu16 | REG_BG1VOFS | vu16 | BG1_Y0 |
| 0400:0018 | 2 | BG2HOFS | W | arm9/background.h | vu16 | REG_BG2HOFS | vu16 | BG2_X0 |
| 0400:001A | 2 | BG2VOFS | W | arm9/background.h | vu16 | REG_BG2VOFS | vu16 | BG2_Y0 |
| 0400:001C | 2 | BG3HOFS | W | arm9/background.h | vu16 | REG_BG3HOFS | vu16 | BG3_X0 |
| 0400:001E | 2 | BG3VOFS | W | arm9/background.h | vu16 | REG_BG3VOFS | vu16 | BG3_Y0 |
| 0400:0020 | 2 | BG2PA | W | arm9/background.h | vs16 | REG_BG2PA | vs16 | BG2_XDX[fnote] Ambiguous terms: X/Y for both vector and coordinate.[/fnote] |
| 0400:0022 | 2 | BG2PB | W | arm9/background.h | vs16 | REG_BG2PB | vs16 | BG2_XDY[fnote] Ambiguous terms: X/Y for both vector and coordinate. Should probably be _YDX element.[/fnote] |
| 0400:0024 | 2 | BG2PC | W | arm9/background.h | vs16 | REG_BG2PC | vs16 | BG2_YDX[fnote] Ambiguous terms: X/Y for both vector and coordinate. Should probably be _XDY element[/fnote] |
| 0400:0026 | 2 | BG2PD | W | arm9/background.h | vs16 | REG_BG2PD | vs16 | BG2_YDY[fnote] Ambiguous terms: X/Y for both vector and coordinate.[/fnote] |
| 0400:0028 | 4 | BG2X | W | arm9/background.h | vs32 | REG_BG2X | vs32 | BG2_CX |
| 0400:002C | 4 | BG2Y | W | arm9/background.h | vs32 | REG_BG2Y | vs32 | BG2_CY |
| 0400:0030 | 2 | BG3PA | W | arm9/background.h | vs16 | REG_BG3PA | vs16 | BG3_XDX[fnote] Ambiguous terms: X/Y for both vector and coordinate.[/fnote] |
| 0400:0032 | 2 | BG3PB | W | arm9/background.h | vs16 | REG_BG3PB | vs16 | BG3_XDY[fnote] Ambiguous terms: X/Y for both vector and coordinate. Should probably be _YDX element.[/fnote] |
| 0400:0034 | 2 | BG3PC | W | arm9/background.h | vs16 | REG_BG3PC | vs16 | BG3_YDX[fnote] Ambiguous terms: X/Y for both vector and coordinate. Should probably be _XDY element[/fnote] |
| 0400:0036 | 2 | BG3PD | W | arm9/background.h | vs16 | REG_BG3PD | vs16 | BG3_YDY[fnote] Ambiguous terms: X/Y for both vector and coordinate.[/fnote] |
| 0400:0038 | 4 | BG3X | W | arm9/background.h | vs32 | REG_BG3X | vs32 | BG3_CX |
| 0400:003C | 4 | BG3Y | W | arm9/background.h | vs32 | REG_BG3Y | vs32 | BG3_CY |
| 0400:0040 | 2 | WIN0H | W | vu16 | REG_WIN0H | |||
| 0400:0040 | arm9/video.h | vu8 | WIN0_X1 | |||||
| 0400:0041 | arm9/video.h | vu8 | WIN0_X0 | |||||
| 0400:0042 | 2 | WIN1H | W | vu16 | REG_WIN1H | |||
| 0400:0042 | arm9/video.h | vu8 | WIN1_X1 | |||||
| 0400:0043 | arm9/video.h | vu8 | WIN1_X0 | |||||
| 0400:0044 | 2 | WIN0V | W | vu16 | REG_WIN0V | |||
| 0400:0044 | arm9/video.h | vu8 | WIN0_Y1 | |||||
| 0400:0045 | arm9/video.h | vu8 | WIN0_Y0 | |||||
| 0400:0046 | 2 | WIN1V | W | vu16 | REG_WIN1V | |||
| 0400:0046 | arm9/video.h | vu8 | WIN1_Y1 | |||||
| 0400:0047 | arm9/video.h | vu8 | WIN1_Y0 | |||||
| 0400:0048 | 2 | WININ | R/W | arm9/video.h | vu16 | WIN_IN | vu16 | REG_WININ |
| 0400:004A | 2 | WINOUT | R/W | arm9/video.h | vu16 | WIN_OUT | vu16 | REG_WINOUT |
| 0400:004C | 2 | MOSAIC | W | arm9/video.h | vu16 | MOSAIC_CR | vu32[fnote] Should be vu16, not vu32[/fnote] | REG_MOSAIC |
| 0400:0050 | 2 | BLDCNT | R/W | arm9/video.h | vu16 | BLEND_CR | vu16 | REG_BLDMOD |
| 0400:0052 | 2 | BLDALPHA | W | arm9/video.h | vu16 | BLEND_AB | vu16 | REG_COLV |
| 0400:0054 | 2 | BLDY | W | arm9/video.h | vu16 | BLEND_Y | vu16 | REG_COLY |
| 0400:0060 | 2 | DISP3DCNT | R/W | arm9/video.h | vu16 | GFX_CONTROL | vu16 | REG_GFX_CONTROL |
| 0400:0064 | 4 | DISPCAPCNT | R/W | arm9/video.h | vu32 | REG_DISPCAPCNT | vu32 | DISP_CAPTURE |
| 0400:0068 | 4 | DISP_MMEM_FIFO | R/W | arm9/video.h | vu32 | REG_ DISP_MMEM_FIFO | ||
| 0400:006C | 2 | MASTER_BRIGHT | R/W | arm9/video.h | vu16 | BRIGHTNESS | ||
| 0400:00B0 | dma.h | vuint32 | DMA_SRC(n) | |||||
| 0400:00B4 | dma.h | vuint32 | DMA_DEST(n) | |||||
| 0400:00B8 | dma.h | vuint32 | DMA_CR(n) | |||||
| 0400:00B0 | vu32[fnote] Should be struct[/fnote] | REG_DMA[ ] | ||||||
| 0400:00B0 | 4 | DMA0SAD | W | dma.h | vuint32 | DMA0_SRC | vu32 | REG_DMA0SAD |
| 0400:00B4 | 4 | DMA0DAD | W | dma.h | vuint32 | DMA0_DEST | vu32 | REG_DMA0DAD |
| 0400:00B8 | 4 | DMA0CNT | R/W | dma.h | vuint32 | DMA0_CR | vu32 | REG_DMA0CNT |
| 0400:00BC | 4 | DMA1SAD | W | dma.h | vuint32 | DMA1_SRC | vu32 | REG_DMA1SAD |
| 0400:00C0 | 4 | DMA1DAD | W | dma.h | vuint32 | DMA1_DEST | vu32 | REG_DMA1DAD |
| 0400:00C4 | 4 | DMA1CNT | R/W | dma.h | vuint32 | DMA1_CR | vu32 | REG_DMA1CNT |
| 0400:00C8 | 4 | DMA2SAD | W | dma.h | vuint32 | DMA2_SRC | vu32 | REG_DMA2SAD |
| 0400:00CC | 4 | DMA2DAD | W | dma.h | vuint32 | DMA2_DEST | vu32 | REG_DMA2DAD |
| 0400:00D0 | 4 | DMA2CNT | R/W | dma.h | vuint32 | DMA2_CR | vu32 | REG_DMA2CNT |
| 0400:00D4 | 4 | DMA3SAD | W | dma.h | vuint32 | DMA3_SRC | vu32 | REG_DMA3SAD |
| 0400:00D8 | 4 | DMA3DAD | W | dma.h | vuint32 | DMA3_DEST | vu32 | REG_DMA3DAD |
| 0400:00DC | 4 | DMA3CNT | R/W | dma.h | vuint32 | DMA3_CR | vu32 | REG_DMA3CNT |
| 0400:00E0 | dma.h | vuint32 | DMA_FILL(n) | |||||
| 0400:00E0 | 4 | DMA0FILL | R/W | |||||
| 0400:00E4 | 4 | DMA1FILL | R/W | |||||
| 0400:00E8 | 4 | DMA2FILL | R/W | |||||
| 0400:00EC | 4 | DMA3FILL | R/W | |||||
| 0400:0100 | vu16[fnote] Should be struct[/fnote] | REG_TIME[ ] | ||||||
| 0400:0100 | timer.h | vuint16 | TIMER_DATA(n) | |||||
| 0400:0102 | timer.h | vuint16 | TIMER_CR(n) | |||||
| 0400:0100 | 2 | TM0D | R/W | timer.h | vuint16 | TIMER0_DATA | vu16 | REG_TM0D |
| 0400:0102 | 2 | TM0CNT | R/W | timer.h | vuint16 | TIMER0_CR | vu16 | REG_TM0CNT |
| 0400:0104 | 2 | TM1D | R/W | timer.h | vuint16 | TIMER1_DATA | vu16 | REG_TM1D |
| 0400:0106 | 2 | TM1CNT | R/W | timer.h | vuint16 | TIMER1_CR | vu16 | REG_TM1CNT |
| 0400:0108 | 2 | TM2D | R/W | timer.h | vuint16 | TIMER2_DATA | vu16 | REG_TM2D |
| 0400:010A | 2 | TM2CNT | R/W | timer.h | vuint16 | TIMER2_CR | vu16 | REG_TM2CNT |
| 0400:010C | 2 | TM3D | R/W | timer.h | vuint16 | TIMER3_DATA | vu16 | REG_TM3D |
| 0400:010E | 2 | TM3CNT | R/W | timer.h | vuint16 | TIMER3_CR | vu16 | REG_TM3CNT |
| 0400:0130 | 2 | KEYINPUT | R/W | system.h | vuint16 | REG_KEYINPUT | vuint16 | KEYS |
| 0400:0132 | 2 | KEYCNT | R/W | system.h | vuint16 | REG_KEYCNT | vuint16 | KEYS_CR |
| 0400:0180 | 2 | IPCSYNC | R/W | ipc.h | vuint16 | REG_IPC_SYNC | ||
| 0400:0184 | 2 | IPCFIFOCNT | R/W | ipc.h | vu16 | REG_IPC_FIFO_CR | ||
| 0400:0188 | 4 | IPCFIFOSEND | W | ipc.h | vu32 | REG_IPC_FIFO_TX | ||
| 0400:01A0 | 2 | AUXSPICNT | card.h | vuint16 | CARD_CR1 | vu32 | REG_CARD_CR1 | |
| 0400:01A1 | card.h | vuint8 | CARD_CR1H | vu8 | REG_CARD_CR1H | |||
| 0400:01A2 | 2 | AUXSPIDATA | card.h | vuint8 | CARD_EEPDATA | |||
| 0400:01A4 | 4 | card.h | vuint32 | CARD_CR2 | vu32 | REG_CARD_CR2 | ||
| 0400:01A8 | 8 | card.h | vuint8 | CARD_COMMAND | vu8 | REG_CARD_COMMAND[ ] | ||
| 0400:01B0 | 4 | card.h | vuint32 | CARD_1B0 | vu32 | REG_CARD_1B0 | ||
| 0400:01B4 | 4 | card.h | vuint32 | CARD_1B4 | vu32 | REG_CARD_1B4 | ||
| 0400:01B8 | 2 | card.h | vuint16 | CARD_1B8 | vu16 | REG_CARD_1B8 | ||
| 0400:01BA | 2 | card.h | vuint16 | CARD_1BA | vu16 | REG_CARD_1BA | ||
| 0400:0204 | 2 | EXMEMCNT | R/W | memory.h | vuint16 | REG_EXMEMCNT | vuint16 | WAIT_CR |
| 0400:0208 | 2 | IME | R/W | interrupts.h | vuint16 | REG_IME | vuint16 | IME |
| 0400:0210 | 4 | IE | R/W | interrupts.h | vuint32 | REG_IE | vuint32 | IE |
| 0400:0214 | 4 | IF | R/W | interrupts.h | vuint32 | REG_IF | vuint32 | IF |
| 0400:0240 | arm9/video.h | vu32 | VRAM_CR | |||||
| 0400:0240 | 1 | VRAMCNT_A | W | arm9/video.h | vu8 | VRAM_A_CR | vu8 | REG_VRAM_A_CR |
| 0400:0241 | 1 | VRAMCNT_B | W | arm9/video.h | vu8 | VRAM_B_CR | vu8 | REG_VRAM_B_CR |
| 0400:0242 | 1 | VRAMCNT_C | W | arm9/video.h | vu8 | VRAM_C_CR | vu8 | REG_VRAM_C_CR |
| 0400:0243 | 1 | VRAMCNT_D | W | arm9/video.h | vu8 | VRAM_D_CR | vu8 | REG_VRAM_D_CR |
| 0400:0244 | 1 | VRAMCNT_E | W | arm9/video.h | vu8 | VRAM_E_CR | vu8 | REG_VRAM_E_CR |
| 0400:0245 | 1 | VRAMCNT_F | W | arm9/video.h | vu8 | VRAM_F_CR | vu8 | REG_VRAM_F_CR |
| 0400:0246 | 1 | VRAMCNT_G | W | arm9/video.h | vu8 | VRAM_G_CR | vu8 | REG_VRAM_G_CR |
| 0400:0247 | 1 | WRAMCNT | W | arm9/video.h | vu8 | WRAM_CR | vu8 | REG_WRAM_CNT |
| 0400:0248 | 1 | VRAMCNT_H | W | arm9/video.h | vu8 | VRAM_H_CR | vu8 | REG_VRAM_H_CR |
| 0400:0249 | 1 | VRAMCNT_I | W | arm9/video.h | vu8 | VRAM_I_CR | vu8 | REG_VRAM_I_CR |
| 0400:0280 | 2 | DIVCNT | R/W | arm9/math.h | vu16 | REG_DIVCNT | vu16 | DIV_CR |
| 0400:0290 | 8 | DIV_NUMER | R/W | arm9/math.h | vs64 | REG_DIV_NUMER | vs64 | DIV_NUMERATOR64 |
| 0400:0290 | arm9/math.h | vs32 | REG_DIV_NUMER_L | vs32 | DIV_NUMERATOR32 | |||
| 0400:0298 | 8 | DIV_DENOM | R/W | arm9/math.h | vs64 | REG_DIV_DENOM | vs64 | DIV_DENOMINATOR64 |
| 0400:0298 | arm9/math.h | vs32 | REG_DIV_DENOM_L | vs32 | DIV_DENOMINATOR32 | |||
| 0400:02A0 | 8 | DIV_RESULT | R | arm9/math.h | vs64 | REG_DIV_RESULT | vs64 | DIV_RESULT64 |
| 0400:02A0 | arm9/math.h | vs32 | REG_DIV_RESULT_L | vs32 | DIV_RESULT32 | |||
| 0400:02A8 | 8 | DIVREM_RESULT | R | arm9/math.h | vs64 | REG_DIVREM_RESULT | vs64 | DIV_REMAINDER64 |
| 0400:02A8 | arm9/math.h | vs32 | REG_DIVREM_RESULT_L | vs32 | DIV_REMAINDER32 | |||
| 0400:02B0 | 2 | SQRTCNT | R/W | arm9/math.h | vu16 | REG_SQRTCNT | vu16 | SQRT_CR |
| 0400:02B4 | 4 | SQRT_RESULT | W | arm9/math.h | vs32 | REG_SQRT_RESULT | vs32 | SQRT_RESULT32 |
| 0400:02B8 | 8 | SQRT_PARAM | R/W | arm9/math.h | vs64 | REG_SQRT_PARAM | vs64 | SQRT_PARAM64 |
| 0400:02B8 | arm9/math.h | vs32 | REG_SQRT_PARAM_L | vs32 | SQRT_PARAM32 | |||
| 0400:0300 | 4 | POSTFLG | ||||||
| 0400:0304 | 2 | POWCNT1 | R/W | system.h | vu16 | REG_POWERCNT | ||
| 0400:0320 | 1 | RDLINES_COUNT | R/W | |||||
| 0400:0330 | 16 | EDGE_COLOR | W | arm9/video.h | vu16 | GFX_EDGE_TABLE | ||
| 0400:0340 | 1 | ALPHA_TEST_REF | W | arm9/video.h | vu16 | GFX_ALPHA_TEST | ||
| 0400:0350 | 4 | CLEAR_COLOR | W | arm9/video.h | vu32 | GFX_CLEAR_COLOR | vu32 | REG_CLEAR_COLOR |
| 0400:0354 | 2 | CLEAR_DEPTH | W | arm9/video.h | vu16 | GFX_CLEAR_DEPTH | vu16 | REG_CLEAR_DEPTH |
| 0400:0356 | 2 | CLRIMAGE_OFFSET | W | |||||
| 0400:0358 | 4 | FOG_COLOR | W | arm9/video.h | vu32 | GFX_FOG_COLOR | ||
| 0400:035C | 2 | FOG_OFFSET | W | arm9/video.h | vu32 | GFX_FOG_OFFSET | ||
| 0400:0360 | 32 | FOG_TABLE | W | arm9/video.h | vu8 | GFX_FOG_TABLE[ ] | ||
| 0400:0380 | 64 | TOON_TABLE | W | arm9/video.h | vu16 | GFX_TOON_TABLE[ ] | ||
| 0400:0400 | 64 | GXFIFO | W | arm9/video.h | vu32 | GFX_FIFO | vu32 | REG_GFX_FIFO |
| 0400:0440 | 4 | MTX_MODE | W | arm9/video.h | vu32 | MATRIX_CONTROL | vu32 | REG_MTX_CONTROL |
| 0400:0444 | 4 | MTX_PUSH | W | arm9/video.h | vu32 | MATRIX_PUSH | vu32 | REG_MTX_PUSH |
| 0400:0448 | 4 | MTX_POP | W | arm9/video.h | vu32 | MATRIX_POP | vu32 | REG_MTX_POP |
| 0400:044C | 4 | MTX_STORE | W | arm9/video.h | vu32 | MATRIX_STORE | vu32 | REG_MTX_STORE |
| 0400:0450 | 4 | MTX_RESTORE | W | arm9/video.h | vu32 | MATRIX_RESTORE | vu32 | REG_MTX_RESTORE |
| 0400:0454 | 4 | MTX_IDENTITY | W | arm9/video.h | vu32 | MATRIX_IDENTITY | vu32 | REG_MTX_IDENTITY |
| 0400:0458 | 4 | MTX_LOAD_4x4 | W | arm9/video.h | vs32 | MATRIX_LOAD4x4 | vf32 | REG_MTX_LOAD4x4 |
| 0400:045C | 4 | MTX_LOAD_4x3 | W | arm9/video.h | vs32 | MATRIX_LOAD4x3 | vf32 | REG_MTX_LOAD4x3 |
| 0400:0460 | 4 | MTX_MULT_4x4 | W | arm9/video.h | vs32 | MATRIX_MULT4x4 | vf32 | REG_MTX_MULT4x4 |
| 0400:0464 | 4 | MTX_MULT_4x3 | W | arm9/video.h | vs32 | MATRIX_MULT4x3 | vf32 | REG_MTX_MULT4x3 |
| 0400:0468 | 4 | MTX_MULT_3x3 | W | arm9/video.h | vs32 | MATRIX_MULT3x3 | vf32 | REG_MTX_MULT3x3 |
| 0400:046C | 4 | MTX_SCALE | W | arm9/video.h | vs32 | MATRIX_SCALE | vint32 | REG_MTX_SCALE |
| 0400:0470 | 4 | MTX_TRANS | W | arm9/video.h | vs32 | MATRIX_TRANSLATE | vint32 | REG_MTX_TRANSLATE |
| 0400:0480 | 4 | COLOR | W | arm9/video.h | vu32 | GFX_COLOR | vu32 | REG_COLOR |
| 0400:0484 | 4 | NORMAL | W | arm9/video.h | vu32 | GFX_NORMAL | vu32 | REG_NORMAL |
| 0400:0488 | 4 | TEXCOORD | W | arm9/video.h | vu32 | GFX_TEX_COORD | vu32 | REG_TEXT_COORD |
| 0400:048C | 4 | VTX_16 | W | arm9/video.h | vu32 | GFX_VERTEX16 | vu32 | REG_VERTEX16 |
| 0400:0490 | 4 | VTX_10 | W | arm9/video.h | vu32 | GFX_VERTEX10 | ||
| 0400:0494 | 4 | VTX_XY | W | arm9/video.h | vu32 | GFX_VERTEX_XY | ||
| 0400:0498 | 4 | VTX_XZ | W | arm9/video.h | vu32 | GFX_VERTEX_XZ | ||
| 0400:049C | 4 | VTX_YZ | W | arm9/video.h | vu32 | GFX_VERTEX_YZ | ||
| 0400:04A0 | 4 | VTX_DIFF | W | arm9/video.h | vu32 | GFX_VERTEX_DIFF | ||
| 0400:04A4 | 4 | POLYGON_ATTR | W | arm9/video.h | vu32 | GFX_POLY_FORMAT | vu32 | REG_POLY_FORMAT |
| 0400:04A8 | 4 | TEXIMAGE_PARAM | W | arm9/video.h | vu32 | GFX_TEX_FORMAT | vu32 | REG_TEXT_FORMAT |
| 0400:04AC | 4 | PLTT_BASE | W | arm9/video.h | vu32 | GFX_PAL_FORMAT | ||
| 0400:04C0 | 4 | DIF_AMB | W | arm9/video.h | vu32 | GFX_DIFFUSE_AMBIENT | vu32 | REG_DIFFUSE_AMBIENT |
| 0400:04C4 | 4 | SPE_EMI | W | arm9/video.h | vu32 | GFX_SPECULAR_EMISSION | vu32 | REG_SPECULAR_EMISSION |
| 0400:04C8 | 4 | LIGHT_VECTOR | W | arm9/video.h | vu32 | GFX_LIGHT_VECTOR | vu32 | REG_LIGHT_VECTOR |
| 0400:04CC | 4 | LIGHT_COLOR | W | arm9/video.h | vu32 | GFX_LIGHT_COLOR | vu32 | REG_LIGHT_COLOR |
| 0400:04D0 | 4 | SHININESS | W | arm9/video.h | vu32 | GFX_SHININESS | vu32 | REG_SHININESS |
| 0400:0500 | 4 | BEGIN_VTXS | W | arm9/video.h | vu32 | GFX_BEGIN | vu32 | REG_GFX_BEGIN |
| 0400:0504 | 4 | END_VTXS | W | arm9/video.h | vu32 | GFX_END | vu32 | REG_GFX_END |
| 0400:0540 | 4 | SWAP_BUFFERS | W | arm9/video.h | vu32 | GFX_FLUSH | vu32 | REG_GFX_FLUSH |
| 0400:0580 | 4 | VIEWPORT | W | arm9/video.h | vu32 | GFX_VIEWPORT | vu32 | REG_GFX_VIEWPORT |
| 0400:05C0 | 4 | BOX_TEST | W | arm9/video.h | vs32 | GFX_BOX_TEST | ||
| 0400:05C4 | 4 | POS_TEST | W | arm9/video.h | vu32 | GFX_POS_TEST | ||
| 0400:05C8 | 4 | VEC_TEST | W | |||||
| 0400:0600 | 4 | GXSTAT | R/W | arm9/video.h | vu32 | GFX_STATUS | vu32 | REG_GFX_STATUS |
| 0400:0604 | 4 | RAM_COUNT | R | |||||
| 0400:0604 | arm9/video.h | u16 | GFX_POLYGON_RAM_USAGE | |||||
| 0400:0606 | arm9/video.h | u16 | GFX_VERTEX_RAM_USAGE | |||||
| 0400:0610 | 2 | DISP_1DOT_DEPTH | W | arm9/video.h | u16 | GFX_CUTOFF_DEPTH | ||
| 0400:0620 | 10 | POS_RESULT | R | arm9/video.h | vs32 | GFX_POS_RESULT[ ] | ||
| 0400:0620 | arm9/video.h | vs32 | POINT_RESULT[ ] | |||||
| 0400:0630 | 6 | VEC_RESULT | R | arm9/video.h | vu16 | VECTOR_RESULT[ ] | ||
| 0400:0640 | 40 | CLIPMTX_RESULT | R | arm9/video.h | vs32 | MATRIX_READ_CLIP[ ] | ||
| 0400:0680 | 24 | VECMTX_RESULT | R | arm9/video.h | vs32 | MATRIX_READ_VECTOR[ ] | ||
| 0400:1000 | 4 | DISPCNT_SUB | W | arm9/video.h | vu32 | REG_DISPCNT_SUB | vu32 | SUB_DISPLAY_CR |
| 0400:1008 | arm9/background.h | bg_attribute | BACKGROUND_SUB | |||||
| 0400:1008 | arm9/background.h | vu16 | BGCTRL_SUB[ ] | |||||
| 0400:1008 | 2 | BG0CNT_SUB | R/W | arm9/background.h | vu16 | REG_BG0CNT_SUB | vu16 | SUB_BG0_CR |
| 0400:100A | 2 | BG1CNT_SUB | R/W | arm9/background.h | vu16 | REG_BG1CNT_SUB | vu16 | SUB_BG1_CR |
| 0400:100C | 2 | BG2CNT_SUB | R/W | arm9/background.h | vu16 | REG_BG2CNT_SUB | vu16 | SUB_BG2_CR |
| 0400:100E | 2 | BG3CNT_SUB | R/W | arm9/background.h | vu16 | REG_BG3CNT_SUB | vu16 | SUB_BG3_CR |
| 0400:1010 | arm9/background.h | vu16 | REG_BGOFFSETS_SUB | |||||
| 0400:1010 | 2 | BG0HOFS_SUB | W | arm9/background.h | vu16 | REG_BG0HOFS_SUB | vu16 | SUB_BG0_X0 |
| 0400:1012 | 2 | BG0VOFS_SUB | W | arm9/background.h | vu16 | REG_BG0VOFS_SUB | vu16 | SUB_BG0_Y0 |
| 0400:1014 | 2 | BG1HOFS_SUB | W | arm9/background.h | vu16 | REG_BG1HOFS_SUB | vu16 | SUB_BG1_X0 |
| 0400:1016 | 2 | BG1VOFS_SUB | W | arm9/background.h | vu16 | REG_BG1VOFS_SUB | vu16 | SUB_BG1_Y0 |
| 0400:1018 | 2 | BG2HOFS_SUB | W | arm9/background.h | vu16 | REG_BG2HOFS_SUB | vu16 | SUB_BG2_X0 |
| 0400:101A | 2 | BG2VOFS_SUB | W | arm9/background.h | vu16 | REG_BG2VOFS_SUB | vu16 | SUB_BG2_Y0 |
| 0400:101C | 2 | BG3HOFS_SUB | W | arm9/background.h | vu16 | REG_BG3HOFS_SUB | vu16 | SUB_BG3_X0 |
| 0400:101E | 2 | BG3VOFS_SUB | W | arm9/background.h | vu16 | REG_BG3VOFS_SUB | vu16 | SUB_BG3_Y0 |
| 0400:1020 | 2 | BG2PA_SUB | W | arm9/background.h | vs16 | REG_BG2PA_SUB | vs16 | SUB_BG2_XDX[fnote] Ambiguous terms: X/Y for both vector and coordinate.[/fnote] |
| 0400:1022 | 2 | BG2PB_SUB | W | arm9/background.h | vs16 | REG_BG2PB_SUB | vs16 | SUB_BG2_XDY[fnote] Ambiguous terms: X/Y for both vector and coordinate. Should probably be _YDX element.[/fnote] |
| 0400:1024 | 2 | BG2PC_SUB | W | arm9/background.h | vs16 | REG_BG2PC_SUB | vs16 | SUB_BG2_YDX[fnote] Ambiguous terms: X/Y for both vector and coordinate. Should probably be _XDY element[/fnote] |
| 0400:1026 | 2 | BG2PD_SUB | W | arm9/background.h | vs16 | REG_BG2PD_SUB | vs16 | SUB_BG2_YDY[fnote] Ambiguous terms: X/Y for both vector and coordinate.[/fnote] |
| 0400:1028 | 4 | BG2X_SUB | W | arm9/background.h | vs32 | REG_BG2X_SUB | vs32 | SUB_BG2_CX |
| 0400:102C | 4 | BG2Y_SUB | W | arm9/background.h | vs32 | REG_BG2Y_SUB | vs32 | SUB_BG2_CY |
| 0400:1030 | 2 | BG3PA_SUB | W | arm9/background.h | vs16 | REG_BG3PA_SUB | vs16 | SUB_BG3_XDX[fnote] Ambiguous terms: X/Y for both vector and coordinate.[/fnote] |
| 0400:1032 | 2 | BG3PB_SUB | W | arm9/background.h | vs16 | REG_BG3PB_SUB | vs16 | SUB_BG3_XDY[fnote] Ambiguous terms: X/Y for both vector and coordinate. Should probably be _YDX element.[/fnote] |
| 0400:1034 | 2 | BG3PC_SUB | W | arm9/background.h | vs16 | REG_BG3PC_SUB | vs16 | SUB_BG3_YDX[fnote] Ambiguous terms: X/Y for both vector and coordinate. Should probably be _XDY element[/fnote] |
| 0400:1036 | 2 | BG3PD_SUB | W | arm9/background.h | vs16 | REG_BG3PD_SUB | vs16 | SUB_BG3_YDY[fnote] Ambiguous terms: X/Y for both vector and coordinate.[/fnote] |
| 0400:1038 | 4 | BG3X_SUB | W | arm9/background.h | vs32 | REG_BG3X_SUB | vs32 | SUB_BG3_CX |
| 0400:103C | 4 | BG3Y_SUB | W | arm9/background.h | vs32 | REG_BG3Y_SUB | vs32 | SUB_BG3_CY |
| 0400:1040 | 2 | WIN0H_SUB | W | vu16 | REG_WIN0H_SUB | |||
| 0400:1040 | arm9/video.h | vu8 | SUB_WIN0_X1 | |||||
| 0400:1041 | arm9/video.h | vu8 | SUB_WIN0_X0 | |||||
| 0400:1042 | 2 | WIN1H_SUB | W | vu16 | REG_WIN1H_SUB | |||
| 0400:1042 | arm9/video.h | vu8 | SUB_WIN1_X1 | |||||
| 0400:1043 | arm9/video.h | vu8 | SUB_WIN1_X0 | |||||
| 0400:1044 | 2 | WIN0V_SUB | W | vu16 | REG_WIN0V_SUB | |||
| 0400:1044 | arm9/video.h | vu8 | SUB_WIN0_Y1 | |||||
| 0400:1045 | arm9/video.h | vu8 | SUB_WIN0_Y0 | |||||
| 0400:1046 | 2 | WIN1V_SUB | W | vu16 | REG_WIN1V_SUB | |||
| 0400:1046 | arm9/video.h | vu8 | SUB_WIN1_Y1 | |||||
| 0400:1047 | arm9/video.h | vu8 | SUB_WIN1_Y0 | |||||
| 0400:1048 | 2 | WININ_SUB | R/W | arm9/video.h | vu16 | SUB_WIN_IN | vu16 | REG_WININ_SUB |
| 0400:104A | 2 | WINOUT_SUB | R/W | arm9/video.h | vu16 | SUB_WIN_OUT | vu16 | REG_WINOUT_SUB |
| 0400:104C | 2 | MOSAIC_SUB | W | arm9/video.h | vu16 | SUB_MOSAIC_CR | vu32[fnote] Should be vu16, not vu32[/fnote] | REG_MOSAIC_SUB |
| 0400:1050 | 2 | BLDCNT_SUB | R/W | arm9/video.h | vu16 | SUB_BLEND_CR | vu16 | REG_BLDMOD_SUB |
| 0400:1052 | 2 | BLDALPHA_SUB | W | arm9/video.h | vu16 | SUB_BLEND_AB | vu16 | REG_COLV_SUB |
| 0400:1054 | 2 | BLDY_SUB | W | arm9/video.h | vu16 | SUB_BLEND_Y | vu16 | REG_COLY_SUB |
| 0400:106C | 2 | MASTER_BRIGHT_SUB | arm9/video.h | vu16 | SUB_BRIGHTNESS | |||
| 0410:0000 | 4 | IPCFIFORECV | R | ipc.h | vu32 | REG_IPC_FIFO_RX | vu32 | REG_CARD_DATA |
| 0410:0010 | 4 | card.h | vu32 | CARD_DATA_RD | vu32 | REG_CARD_DATA_RD | ||
| GBATek / official | libnds primary | libnds alternate | ||||||
|---|---|---|---|---|---|---|---|---|
| addr | size | name | name | file | type | name | type | name |
| 0400:0004 | 2 | DISPSTAT | R/W | system.h | vu16 | REG_DISPSTAT | vu16 | DISP_SR |
| 0400:0006 | 2 | VCOUNT | R/W | system.h | vu16 | REG_VCOUNT | vu16 | DISP_Y |
| 0400:00B0 | dma.h | vuint32 | DMA_SRC(n) | |||||
| 0400:00B4 | dma.h | vuint32 | DMA_DEST(n) | |||||
| 0400:00B8 | dma.h | vuint32 | DMA_CR(n) | |||||
| 0400:00B0 | 4 | DMA0SAD | W | dma.h | vuint32 | DMA0_SRC | vu32 | REG_DMA0SAD |
| 0400:00B4 | 4 | DMA0DAD | W | dma.h | vuint32 | DMA0_DEST | vu32 | REG_DMA0DAD |
| 0400:00B8 | 4 | DMA0CNT | R/W | dma.h | vuint32 | DMA0_CR | vu32 | REG_DMA0CNT |
| 0400:00BC | 4 | DMA1SAD | W | dma.h | vuint32 | DMA1_SRC | vu32 | REG_DMA1SAD |
| 0400:00C0 | 4 | DMA1DAD | W | dma.h | vuint32 | DMA1_DEST | vu32 | REG_DMA1DAD |
| 0400:00C4 | 4 | DMA1CNT | R/W | dma.h | vuint32 | DMA1_CR | vu32 | REG_DMA1CNT |
| 0400:00C8 | 4 | DMA2SAD | W | dma.h | vuint32 | DMA2_SRC | vu32 | REG_DMA2SAD |
| 0400:00CC | 4 | DMA2DAD | W | dma.h | vuint32 | DMA2_DEST | vu32 | REG_DMA2DAD |
| 0400:00D0 | 4 | DMA2CNT | R/W | dma.h | vuint32 | DMA2_CR | vu32 | REG_DMA2CNT |
| 0400:00D4 | 4 | DMA3SAD | W | dma.h | vuint32 | DMA3_SRC | vu32 | REG_DMA3SAD |
| 0400:00D8 | 4 | DMA3DAD | W | dma.h | vuint32 | DMA3_DEST | vu32 | REG_DMA3DAD |
| 0400:00DC | 4 | DMA3CNT | R/W | dma.h | vuint32 | DMA3_CR | vu32 | REG_DMA3CNT |
| 0400:0100 | timer.h | vuint16 | TIMER_DATA(n) | |||||
| 0400:0102 | timer.h | vuint16 | TIMER_CR(n) | |||||
| 0400:0100 | 2 | TM0D | R/W | timer.h | vuint16 | TIMER0_DATA | vu16 | REG_TM0D |
| 0400:0102 | 2 | TM0CNT | R/W | timer.h | vuint16 | TIMER0_CR | vu16 | REG_TM0CNT |
| 0400:0104 | 2 | TM1D | R/W | timer.h | vuint16 | TIMER1_DATA | vu16 | REG_TM1D |
| 0400:0106 | 2 | TM1CNT | R/W | timer.h | vuint16 | TIMER1_CR | vu16 | REG_TM1CNT |
| 0400:0108 | 2 | TM2D | R/W | timer.h | vuint16 | TIMER2_DATA | vu16 | REG_TM2D |
| 0400:010A | 2 | TM2CNT | R/W | timer.h | vuint16 | TIMER2_CR | vu16 | REG_TM2CNT |
| 0400:010C | 2 | TM3D | R/W | timer.h | vuint16 | TIMER3_DATA | vu16 | REG_TM3D |
| 0400:010E | 2 | TM3CNT | R/W | timer.h | vuint16 | TIMER3_CR | vu16 | REG_TM3CNT |
| 0400:0120 | 4 | SIODATA32 | arm7/serial.h | vuint32 | SIO_DATA32 | |||
| 0400:0120 | arm7/serial.h | vuint16 | SIO_MULTI_0 | |||||
| 0400:0122 | arm7/serial.h | vuint16 | SIO_MULTI_1 | |||||
| 0400:0124 | arm7/serial.h | vuint16 | SIO_MULTI_2 | |||||
| 0400:0126 | arm7/serial.h | vuint16 | SIO_MULTI_3 | |||||
| 0400:0128 | 4 | SIOCNT | arm7/serial.h | vuint16 | REG_SIOCNT | vu16 | REG_SIOCNT | |
| 0400:012A | arm7/serial.h | vuint8 | SIO_DATA8 | |||||
| 0400:012A | arm7/serial.h | vuint16 | SIO_MULTI_SEND | vu16 | REG_SIOMLT_SEND | |||
| 0400:012C | SIOSEL | |||||||
| 0400:0130 | 2 | KEYINPUT | system.h | vuint16 | REG_KEYINPUT | vuint16 | KEYS | |
| 0400:0132 | 2 | KEYCNT | system.h | vuint16 | REG_KEYCNT | vuint16 | KEYS_CR | |
| 0400:0134 | 2 | RCNT | arm7/serial.h | vuint16 | REG_RCNT | vu16 | REG_RCNT | |
| 0400:0136 | 2 | EXTKEYIN | arm7/serial.h | vuint16 | REG_KEYXY | |||
| 0400:0138 | 2 | arm7/serial.h | vuint16 | RTC_CR | ||||
| 0400:0138 | arm7/serial.h | vuint8 | RTC_CR8 | |||||
| 0400:0140 | 2 | JOYCNT | R/W | vu16 | REG_HS_CTRL | |||
| 0400:0180 | 2 | IPCSYNC | R/W | ipc.h | vuint16 | REG_IPC_SYNC | ||
| 0400:0184 | 2 | IPCFIFOCNT | R/W | ipc.h | vu16 | REG_IPC_FIFO_CR | ||
| 0400:0188 | 4 | IPCFIFOSEND | W | ipc.h | vu32 | REG_IPC_FIFO_TX | ||
| 0400:01A0 | 2 | AUXSPICNT | card.h | vuint16 | CARD_CR1 | vu32 | REG_CARD_CR1 | |
| 0400:01A1 | card.h | vuint8 | CARD_CR1H | vu8 | REG_CARD_CR1H | |||
| 0400:01A2 | 2 | AUXSPIDATA | card.h | vuint8 | CARD_EEPDATA | |||
| 0400:01A4 | 4 | ROMCTRL | card.h | vuint32 | CARD_CR2 | vu32 | REG_CARD_CR2 | |
| 0400:01A8 | 8 | card.h | vuint8 | CARD_COMMAND[ ] | vu8 | REG_CARD_COMMAND[ ] | ||
| 0400:01B0 | 4 | card.h | vuint32 | CARD_1B0 | vu32 | REG_CARD_1B0 | ||
| 0400:01B4 | 4 | card.h | vuint32 | CARD_1B4 | vu32 | REG_CARD_1B4 | ||
| 0400:01B8 | 2 | card.h | vuint16 | CARD_1B8 | vu16 | REG_CARD_1B8 | ||
| 0400:01BA | 2 | card.h | vuint16 | CARD_1BA | vu16 | REG_CARD_1BA | ||
| 0400:01C0 | 2 | SPICNT | arm7/serial.h | vuint16 | REG_SPICNT | vuint16 | SERIAL_CR | |
| 0400:01C2 | 2 | SPIDATA | arm7/serial.h | vuint16 | REG_SPIDATA | vuint16 | SERIAL_DATA | |
| 0400:0204 | 2 | EXMEMSTAT | memory.h | vuint16 | REG_EXMEMSTAT | vuint16 | WAIT_CR | |
| 0400:0206 | 2 | WIFIWAITCNT | W | |||||
| 0400:0208 | 4 | IME | interrupts.h | vuint16 | REG_IME | vuint16 | IME | |
| 0400:0210 | 4 | IE | interrupts.h | vuint32 | REG_IE | vuint32 | IE | |
| 0400:0214 | 4 | IF | interrupts.h | vuint32 | REG_IF | vuint32 | IF | |
| 0400:0240 | 1 | VRAMSTAT | R | |||||
| 0400:0241 | 1 | WRAMSTAT | R | |||||
| 0400:0300 | 1 | POSTFLG | system.h | vuint16 | HALT_CR | |||
| 0400:0301 | 1 | HALTCNT | ||||||
| 0400:0304 | 2 | POWCNT2 | R/W | system.h | vu16 | REG_POWERCNT | vu16 | POWER_CR |
| 0400:0308 | 4 | BIOSPROT | memory.h | vuint32 | PROTECTION | |||
| 0400:04x0 | 4 | SOUNDxCNT | R/W | arm7/audio.h | vuint32 | SCHANNEL_CR(n) | ||
| 0400:0400 | arm7/audio.h | vuint8 | SCHANNEL_VOL(n) | |||||
| 0400:0402 | arm7/audio.h | vuint8 | SCHANNEL_PAN(n) | |||||
| 0400:04x4 | 4 | SOUNDxSAD | W | arm7/audio.h | vuint32 | SCHANNEL_SOURCE(n) | ||
| 0400:04x8 | 2 | SOUNDxTMR | W | arm7/audio.h | vint16 | SCHANNEL_TIMER(n) | ||
| 0400:04xA | 2 | SOUNDxPNT | W | arm7/audio.h | vuint16 | SCHANNEL_REPEAT_POINT(n) | ||
| 0400:04xC | 4 | SOUNDxLEN | W | arm7/audio.h | vuint32 | SCHANNEL_LENGTH(n) | ||
| 0400:0500 | 2 | SOUNDCNT | R/W | arm7/audio.h | vuint16 | SOUND_CR | ||
| 0400:0500 | arm7/audio.h | vuint8 | SOUND_MASTER_VOL | |||||
| 0400:0504 | 2 | SOUNDBIAS | R/W | arm7/audio.h | vuint16 | SOUND_BIAS | ||
| 0400:0508 | 1 | SNDCAP0CNT | R/W | arm7/audio.h | vu8 | REG_SNDCAP0CNT | ||
| 0400:0509 | 1 | SNDCAP1CNT | R/W | arm7/audio.h | vu8 | REG_SNDCAP1CNT | ||
| 0400:0510 | 4 | SNDCAP0DAD | R/W | arm7/audio.h | vu32 | REG_SNDCAP0DAD | ||
| 0400:0514 | 2 | SNDCAP0LEN | W | arm7/audio.h | vu16 | REG_SNDCAP0LEN | ||
| 0400:0518 | 4 | SNDCAP1DAD | R/W | arm7/audio.h | vu32 | REG_SNDCAP1DAD | ||
| 0400:051C | 2 | SNDCAP1LEN | W | arm7/audio.h | vu16 | REG_SNDCAP1LEN | ||
| 0410:0000 | 4 | IPCFIFORECV | R | ipc.h | vu32 | REG_IPC_FIFO_RX | vu32 | REG_CARD_DATA |
| 0410:0010 | 4 | card.h | vuint32 | CARD_DATA_RD | vu32 | REG_CARD_DATA_RD | ||
Wow that's a lot of red.
wrt note 2:
http://nocash.emubase.de/gbatek.htm#dsvideo (yes seriously)
wrt naming: I wrote libnds prior to gbatek. We are tending towards gbatek naming though the naming is lifted directly from the SDK (so I am told) which is problematic.
wrt errors: I am trying to fix data types as they come in. I will cross reference this list with current cvs and correct type errors for next release.
Thanks again for the excelent feedback...as for naming I will accept a patch which renames all registers to gbatek naming if one is submitted otherwise I cannot make any promises...time is not in great supply at the moment but i will make an attempt if the other devs agree.
[quote]Ian wrote:
Wow that's a lot of red.
[/quote]
Well, it is a little exaggerated. Most of the red here is for the affine datatypes, which technically should be signed. However, because these are read-only anyway it's not that big of a deal in the grand scheme of things. Having said that,people seem to model their datatypes on the ones from the registers, and when you start doing fixed-point arithmetic with unsigned types the right-shifts can lead to bad results. That's the thing to watch out for.
BG_MAP_RAM and BG_TILE_RAM and friends also have the dubious quality of being memory address macros without a built in cast-to-pointer-type (cf BG_PALETTE, SPRITE_PALETTE and friends), so if you want to copy some data in there you've got to cast them yourself. Not a big drama but it looks a bit odd when the palette copy doesn't need a cast, but then the tiles and map data copies do.
I can't imagine what visual effect you can make with a R/W vcount :)
Hi there
thanks for the namings...
I was wondering, if i wanna send and receive data (I/O interface) from the Slot2, which registers are involved in the process?
thanks anyway
Romu
Pingback: Important links « embedded programming on the nds
Very good information. Lucky me I came across your site by chance
(stumbleupon). I've saved as a favorite for later!