From a488ee8e7adcf58d003710f6a21bfbf6551a4de3 Mon Sep 17 00:00:00 2001
From: Alexandre Julliard <julliard@winehq.org>
Date: Mon, 24 Nov 2008 13:45:42 +0100
Subject: [PATCH] kernel32: Fix the base DOS memory address when the low 64K
 are not accessible.

---
 dlls/kernel32/dosmem.c | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/dlls/kernel32/dosmem.c b/dlls/kernel32/dosmem.c
index a1bff4dc68c..8b0653b291d 100644
--- a/dlls/kernel32/dosmem.c
+++ b/dlls/kernel32/dosmem.c
@@ -170,15 +170,16 @@ BOOL DOSMEM_Init(void)
         ExitProcess(1);
     }
 
-    DOSMEM_dosmem = addr;
-    if (!addr)
+    if (addr <= (void *)DOSMEM_64KB)
     {
+        DOSMEM_dosmem = 0;
         DOSMEM_protect = DOSMEM_64KB;
         sysmem = (char *)0xf0000;  /* store sysmem in high addresses for now */
     }
     else
     {
         WARN( "First megabyte not available for DOS address space.\n" );
+        DOSMEM_dosmem = addr;
         DOSMEM_protect = 0;
         sysmem = DOSMEM_dosmem;
     }