From e6be5f493cfb750124f6717e064644c53d1154eb Mon Sep 17 00:00:00 2001
From: Sjoerd van der Berg <harekiet@users.sourceforge.net>
Date: Sat, 7 Feb 2004 22:23:07 +0000
Subject: [PATCH] Set the black/white bit for cga when setting mode 0x5

Imported-from: https://svn.code.sf.net/p/dosbox/code-0/dosbox/trunk@1663
---
 src/ints/int10_modes.cpp | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/src/ints/int10_modes.cpp b/src/ints/int10_modes.cpp
index 0f17c4e0..a6807919 100644
--- a/src/ints/int10_modes.cpp
+++ b/src/ints/int10_modes.cpp
@@ -423,6 +423,8 @@ att_text16:
 		real_writeb(BIOSMEM_SEG,BIOSMEM_CURRENT_PAL,0x7);
 		goto skipatt;
 	case M_CGA4:
+		//Set Bit 2 in black/white mode 0x5
+		IO_Write(0x3d8,0xa+(CurMode->mode==0x5) ? 0x4 : 0);
 		IO_Write(0x3d9,0x30);		//Setup using CGA color select register
 		real_writeb(BIOSMEM_SEG,BIOSMEM_CURRENT_PAL,0x30);
 		goto skipatt;