From 3a2b3c6d57d74320afe8f28332886400d540a539 Mon Sep 17 00:00:00 2001
From: ripsaw8080 <ripsaw8080@users.sourceforge.net>
Date: Mon, 12 Nov 2018 16:39:49 +0000
Subject: [PATCH] Reset write ops after drawing text in EGA graphics modes,
 consistent with EGA/VGA BIOS. Fixes Fun School 3.

Imported-from: https://svn.code.sf.net/p/dosbox/code-0/dosbox/trunk@4169
---
 src/ints/int10_char.cpp | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/src/ints/int10_char.cpp b/src/ints/int10_char.cpp
index d8c5aaa9..4acf8cf1 100644
--- a/src/ints/int10_char.cpp
+++ b/src/ints/int10_char.cpp
@@ -625,6 +625,11 @@ void INT10_WriteChar(Bit8u chr,Bit8u attr,Bit8u page,Bit16u count,bool showattr)
 			cur_row++;
 		}
 	}
+
+	if (CurMode->type==M_EGA) {
+		// Reset write ops for EGA graphics modes
+		IO_Write(0x3ce,0x3);IO_Write(0x3cf,0x0);
+	}
 }
 
 static void INT10_TeletypeOutputAttr(Bit8u chr,Bit8u attr,bool useattr,Bit8u page) {