Difference between revisions of "IRRST Shared Memory"
Jump to navigation
Jump to search
m (→Entry format) |
|||
| (One intermediate revision by the same user not shown) | |||
| Line 11: | Line 11: | ||
|- | |- | ||
| 0x0 | | 0x0 | ||
| − | | | + | | 0x8 |
| − | | | + | | [[SVC|svcGetSystemTick]] tick-count output, for when IR module updates entry index0 in the below array. |
| + | |- | ||
| + | | 0x8 | ||
| + | | 0x8 | ||
| + | | Before the above tick-count field is updated, that value is copied into this field. Therefore, this contains the tick-count for the previous time that entry index0 in the below array was updated by IR module. | ||
|- | |- | ||
| + | | 0x10 | ||
| 0x4 | | 0x4 | ||
| − | | | + | | Index in the following array which was last updated by IR module. |
| − | |||
|- | |- | ||
| − | | | + | | 0x18 |
| 0x80 | | 0x80 | ||
| Array of 8 entries, where each entry (see below) is 0x10-bytes. | | Array of 8 entries, where each entry (see below) is 0x10-bytes. | ||
| Line 46: | Line 50: | ||
| 0xC | | 0xC | ||
| 0x2 | | 0x2 | ||
| − | | C-stick | + | | C-stick X value (center is exactly 0, ranges from -0x9C to 0x9C) |
|- | |- | ||
| 0xE | | 0xE | ||
| 0x2 | | 0x2 | ||
| − | | C-stick | + | | C-stick Y value (center is exactly 0, ranges from -0x9C to 0x9C) |
|} | |} | ||
Latest revision as of 19:34, 26 October 2014
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[edit]
| Relative offset | Size | Description |
|---|---|---|
| 0x0 | 0x8 | svcGetSystemTick tick-count output, for when IR module updates entry index0 in the below array. |
| 0x8 | 0x8 | Before the above tick-count field is updated, that value is copied into this field. Therefore, this contains the tick-count for the previous time that entry index0 in the below array was updated by IR module. |
| 0x10 | 0x4 | Index in the following array which was last updated by IR module. |
| 0x18 | 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[edit]
| 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 X value (center is exactly 0, ranges from -0x9C to 0x9C) |
| 0xE | 0x2 | C-stick Y value (center is exactly 0, ranges from -0x9C to 0x9C) |
PAD State[edit]
| 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).