From f5908afeafcb49395abba7069b6b4d6bb5bbbdb6 Mon Sep 17 00:00:00 2001
From: Kaisaan <34224128+Kaisaan@users.noreply.github.com>
Date: Tue, 16 Feb 2021 17:51:08 -0500
Subject: [PATCH] Include Section about RTCom in the modding index

---
 pages/_en-US/ds-index/dsi-twl-firm.md | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/pages/_en-US/ds-index/dsi-twl-firm.md b/pages/_en-US/ds-index/dsi-twl-firm.md
index e2e57fa9..535fb10f 100644
--- a/pages/_en-US/ds-index/dsi-twl-firm.md
+++ b/pages/_en-US/ds-index/dsi-twl-firm.md
@@ -49,3 +49,6 @@ A `pit.bin` file is used in order to load images. However, the header size at of
 
 ### Nintendo DSi Bootstage 2
 The second bootstage of the Nintendo DSi loads launcher's "title.tmd" into memory. However, they do not specify a file size limit check, meaning that the first 80k bytes are loaded into RAM while the rest can be a custom payload. This is the basis of Unlaunch exploit.
+
+### RTCom
+RTCom is the use of the 3DS's RTC to allow the ARM7 and ARM11 CPUs to communicate with each other, even while in TWL_FIRM. This allows 3DS features to be used while in DS(i) mode. This includes the circle pad's analog input, enabling widescreen, and having gyro support. Currently, the only public ds homebrew that make use of RTCom is certain builds of gbarunner2 that have support for the 3DS's gyro feature. To enable RTCom, you will need to use [TWPatch](https://gbatemp.net/threads/542694/).
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