1 files changed, 70 insertions, 0 deletions

diff --git a/private/mvdm/softpc.new/base/video/video_io.c b/private/mvdm/softpc.new/base/video/video_io.c
new file mode 100644
index 000000000..a0bb75c65
--- /dev/null
+++ b/private/mvdm/softpc.new/base/video/video_io.c
@@ -0,0 +1,70 @@
+#include "insignia.h"
+#include "host_def.h"
+/*
+ * SoftPC Revision 3.0
+ *
+ * Title	: Bios Virtual Screen Interface
+ *
+ * Description	: Top level call to the video interface.  Uses a function
+ *		  jump table to call the lower level functions.
+ *
+ * Author	: Henry Nash
+ *
+ * Notes	: None
+ * SCCS ID	: @(#)video_io.c	1.8 08/19/94
+ *
+ */
+
+
+#ifdef SEGMENTATION
+/*
+ * The following #include specifies the code segment into which this
+ * module will by placed by the MPW C compiler on the Mac II running
+ * MultiFinder.
+ */
+#include "VIDEO_BIOS.seg"
+#endif
+
+
+/*
+ *    O/S include files.
+ */
+#include <stdio.h>
+#include TypesH
+
+/*
+ * SoftPC include files
+ */
+#include "xt.h"
+#include CpuH
+#include "bios.h"
+#include "video.h"
+
+#include "debug.h"
+#include "idetect.h"
+
+#define check_video_func(AH)	(AH < EGA_FUNC_SIZE)
+
+void video_io()
+{
+
+
+#if defined(NTVDM) && !defined(X86GFX)
+    if (stream_io_enabled && getAH()!= 0x0E &&  getAX() != 0x13FF)
+        disable_stream_io();
+#endif
+
+
+    /*
+     * The type of operation is coded into the AH register.  Some PC code
+     * calls AH functions that are for other more advanced cards - so we
+     * ignore these.
+     */
+
+    assert1(check_video_func(getAH()),"Illegal VIO:%#x",getAH());
+    if (check_video_func(getAH()))
+    {
+	IDLE_video();
+	(*video_func[getAH()])();
+    }
+}