Registers
| Old3DS | Name | Address | Width | Used by |
|---|---|---|---|---|
| Yes | HID_PAD | 0x10146000 | 2 | Boot9, Boot11, Kernel11, TwlBg, HID Services, dlp Services |
| Yes | HID_PADCNT | 0x10146002 | 2 | TwlBg |
HID_PAD
Each bit in this register refers to a particular key. Each bit is set if the corresponding key is not pressed, and unset if it's pressed.
| Bit | Key |
|---|---|
| 0 | A |
| 1 | B |
| 2 | Select |
| 3 | Start |
| 4 | Right |
| 5 | Left |
| 6 | Up |
| 7 | Down |
| 8 | R |
| 9 | L |
| 10 | X |
| 11 | Y |
HID_PADCNT
| Bit | Key |
|---|---|
| 0 | A |
| 1 | B |
| 2 | Select |
| 3 | Start |
| 4 | Right |
| 5 | Left |
| 6 | Up |
| 7 | Down |
| 8 | R |
| 9 | L |
| 10 | X |
| 11 | Y |
| 12-13 | Unused. |
| 14 | Enable IRQ 0x5B. 1 = enable. |
| 15 | IRQ condition (0 = OR, 1 = AND). |
This is the same as on GBA/DS(i).