IR:RST Shared Memory - Revision history

Smea: Blanked the page

2014-10-25T22:20:44Z

Blanked the page

← Older revision		Revision as of 02:20, 26 October 2014
Line 1:		Line 1:
	~~This page describes the format of the [[IR Services\|ir:rst]]'s shared memory. It contains the current state of New 3DS input device, ie the c-stick and the ZL/ZR shoulder buttons.~~

	~~Size: 0x88 ?~~

	~~=Offset 0x0=~~
	~~{\| class="wikitable" border="1"~~
	\|-
	~~! 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.~~

	~~==PAD State==~~
	~~{\| class="wikitable" border="1"~~
	\|-
	~~! 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).~~

	~~==Entry format==~~
	~~{\| class="wikitable" border="1"~~
	\|-
	~~! Relative offset~~
	~~! Size~~
	~~! Description~~
	\|-
	~~\| 0x0~~
	~~\| 0x4~~
	~~\| Current 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~~
	~~\| 0x4~~
	\| This stores c-stick info: the low s16 is the X coordinate, the high s16 is the Y coordinate. The c-stick center is exactly 0 for these fields. The range for these fields is approximately: -0x9C(bottom/left) - 0x9C(top/right).
	\|}

Smea: Created page with "This page describes the format of the ir:rst's shared memory. It contains the current state of New 3DS input device, ie the c-stick and the ZL/ZR shoulder buttons..."

2014-10-25T22:17:51Z

Created page with "This page describes the format of the ir:rst's shared memory. It contains the current state of New 3DS input device, ie the c-stick and the ZL/ZR shoulder buttons..."

New page

This page describes the format of the [[IR Services|ir:rst]]'s shared memory. It contains the current state of New 3DS input device, ie the c-stick and the ZL/ZR shoulder buttons.

Size: 0x88 ?

=Offset 0x0=
{| class="wikitable" border="1"
|-
! 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.

==PAD State==
{| class="wikitable" border="1"
|-
! 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).

==Entry format==
{| class="wikitable" border="1"
|-
! Relative offset
! Size
! Description
|-
| 0x0
| 0x4
| Current 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
| 0x4
| This stores c-stick info: the low s16 is the X coordinate, the high s16 is the Y coordinate. The c-stick center is exactly 0 for these fields. The range for these fields is approximately: -0x9C(bottom/left) - 0x9C(top/right).
|}