From 153db4e70ffb2376b9819e7c2eb405be4dfd0a1c Mon Sep 17 00:00:00 2001
From: zachir <zachir@librem.one>
Date: Thu, 23 Sep 2021 00:37:40 -0500
Subject: st.c: fix scrollback to only go to end of buffer, fix hist buffer

---
 st.c | 10 +++++++---
 1 file changed, 7 insertions(+), 3 deletions(-)

diff --git a/st.c b/st.c
index c765947..86cf5a3 100644
--- a/st.c
+++ b/st.c
@@ -1107,11 +1107,16 @@ kscrollup(const Arg* a)
 	if (n < 0)
 		n = term.row + n;
 
-	if (term.scr <= HISTSIZE-n) {
+        if (term.scr <= term.histi-n) {
 		term.scr += n;
 		selscroll(0, n);
 		tfulldirt();
-	}
+	} else {
+                n = term.histi - term.scr;
+                term.scr = term.histi;
+                selscroll(0, n);
+                tfulldirt();
+        }
 }
 
 void
@@ -1779,7 +1784,6 @@ csihandle(void)
 				tclearregion(0, term.c.y+1, term.col-1,
 						term.row-1);
 			}
-                        term.histi=0;
 			break;
 		case 1: /* above */
 			if (term.c.y > 1)
-- 
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