From 84950a0d505b007aa82fcf70f5c5df1bcbd37925 Mon Sep 17 00:00:00 2001
From: Mitchell Hashimoto <mitchell.hashimoto@gmail.com>
Date: Fri, 6 Oct 2023 09:02:51 -0700
Subject: [PATCH] website: cub top/bottom scroll with extended wrap

---
 website/app/vt/cub/page.mdx | 23 ++++++++++++++++++++++-
 1 file changed, 22 insertions(+), 1 deletion(-)

diff --git a/website/app/vt/cub/page.mdx b/website/app/vt/cub/page.mdx
index b4b5ed0aa..a0fd019dd 100644
--- a/website/app/vt/cub/page.mdx
+++ b/website/app/vt/cub/page.mdx
@@ -120,4 +120,25 @@ printf "X"
 |B_________|
 ```
 
-### TODO: Reverse Wrap, Scroll Region Validations
+### CUB V-5: Extended Reverse Wrap Wraps to Bottom
+
+```bash
+cols=$(tput cols)
+printf "\033[?7h" # enable wraparound
+printf "\033[?1045h" # enable extended reverse wrap
+printf "\033[1;1H" # move to top-left
+printf "\033[0J" # clear screen
+printf "\033[1;3r" # set scrolling region
+echo "A"
+printf "B"
+printf "\033[D" # move back one
+printf "\033[${cols}D" # move back entire width
+printf "\033[D" # move back one
+printf "X"
+```
+
+```
+|A_________|
+|B_________|
+|_________Xc
+```