Implement POST card device

src/postcard.h

@@ -0,0 +1,35 @@
+/*
+ * 86Box	A hypervisor and IBM PC system emulator that specializes in
+ *		running old operating systems and software designed for IBM
+ *		PC systems and compatibles from 1981 through fairly recent
+ *		system designs based on the PCI bus.
+ *
+ *		This file is part of the 86Box distribution.
+ *
+ *		Implementation of a port 80h POST diagnostic card.
+ *
+ * Version:	@(#)postcard.c	1.0.0	2020/03/23
+ *
+ * Author:	RichardG, <richardg867@gmail.com>
+ *		Copyright 2020 RichardG.
+ */
+#ifndef POSTCARD_H
+# define POSTCARD_H
+
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/* Global variables. */
+extern const device_t postcard_device;
+
+
+/* Functions. */
+
+#ifdef __cplusplus
+}
+#endif
+
+
+#endif	/*BUGGER_H*/