From 538469e97de891fb4bcec6951f8e01defc1e0aaa Mon Sep 17 00:00:00 2001
From: imp <imp@FreeBSD.org>
Date: Tue, 30 Jun 1998 22:23:06 +0000
Subject: Implement int 2f ax=1600, which is, according to the Interrupt List,
 used to check to see if windows 3.x if running.  We always return 0, which
 means that neither Windows 3.x nor Windows/386 2.x is running.  It also
 means, btw, that XMS version 1 isn't installed, which is true since we don't
 implement that either.

---
 usr.bin/doscmd/int2f.c | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

(limited to 'usr.bin')

diff --git a/usr.bin/doscmd/int2f.c b/usr.bin/doscmd/int2f.c
index 450d4d7..e8fecb3 100644
--- a/usr.bin/doscmd/int2f.c
+++ b/usr.bin/doscmd/int2f.c
@@ -29,7 +29,7 @@
  *
  *	BSDI int2f.c,v 2.2 1996/04/08 19:32:53 bostic Exp
  *
- * $Id: int2f.c,v 1.4 1996/09/22 15:42:56 miff Exp $
+ * $Id: int2f.c,v 1.1 1997/08/09 01:42:50 dyson Exp $
  */
 
 #include "doscmd.h"
@@ -99,6 +99,10 @@ static int
 int2f_windows(regcontext_t *REGS)
 {
     switch (R_AL) {
+    case 0x00:
+	R_AL = 0x00;			/* Neither Win 3.x nor 2.x running */
+	return(0);
+
     case 0x80:				/* installation check */
 	tty_pause();
 	R_AL = 0x00;
-- 
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