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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). − |}
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