This is the shared-memory for "ir:rst". The additional New 3DS HID data is stored here. The structure of this is similar to the HID_Shared_Memory sections.
The total size of this shared-mem is 0x98-bytes.
Offset 0x0
| Relative offset
|
Size
|
Description
|
| 0x0
|
0x4
|
A counter that ranges from 0 to 7, presumably to indicate which entry was last updated
|
| 0x4
|
0x4
|
Unused ? (value 0x0)
|
| 0x8
|
0x80
|
Array of 8 entries, where each entry (see below) is 0x10-bytes.
|
IR module first updates index0, then index1, and so on. When updating the array when the index is already 7, the index is reset to 0.
Entry format
| Relative offset
|
Size
|
Description
|
| 0x0
|
0x4
|
PAD state
|
| 0x4
|
0x4
|
PAD state for buttons which were pressed(bitmasks which changed from value 0 to value 1) since the last HID update.
|
| 0x8
|
0x4
|
PAD state for buttons which were released(bitmasks which changed from value 1 to value 0) since the last HID update.
|
| 0xC
|
0x2
|
C-stick Y value (center is exactly 0, ranges from -0x9C to 0x9C)
|
| 0xE
|
0x2
|
C-stick X value (center is exactly 0, ranges from -0x9C to 0x9C)
|
PAD State
| Bit
|
Description
|
| 14
|
ZL
|
| 15
|
ZR
|
| 24
|
C-stick right
|
| 25
|
C-stick left
|
| 26
|
C-stick up
|
| 27
|
C-stick down
|
The ir:rst PAD entries are the same format as HID ones and meant to be ORd with them (they are complementary, there is no overlap in used bits).