sda4: commit the Glaze developer hard-drive dump

Un-ignored: the dev drive is the ground truth the restoration and
emulator work constantly reference (DPL3/LIBDPL + VRENDER i860 renderer
source, BT/RP live+dev game trees, VGL_LABS pod boot, scene/audio
content). Kept in-repo for the pod-owner community.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>

sda4/DPL3/VR_COMMS.H

@@ -0,0 +1,56 @@
+#ifndef vr_comms_h
+#define vr_comms_h
+
+/*{{{  banner*/
+/* **************************************************
+
+   Copyright DIVISION Limited (c) 1994
+   All rights reserved
+
+
+   File    : vr_comms.h
+   Project : dpl interface
+             communication to velocirender for pxpl5
+   Author  : PJA
+   Date    : 22/06/94
+
+   Function: communication to velocirender for pxpl5
+             implements low-level messaging
+             byte-sex conversion
+
+   History : Rev 1.0, 23 / 06 / 1994
+
+**************************** */
+/*}}}  */
+
+extern int32 dpl_little_endian;
+
+#include "vr_prot.h"
+
+extern int32
+velocirender_receive ( vr_action *action, void *node, int32 *n_bytes );
+
+extern int32
+velocirender_transmit ( vr_action action, void *data, int32  n_bytes,
+                        int32 endian_fix );
+
+extern int32
+velocirender_inputstatus ( void );
+
+extern int32
+velocirender_frameack    ( void );
+
+extern void
+vrserver ( char * );
+
+extern void
+start_velocirender ( char *tranny_name,
+                     char *hsp_name,
+                     char *i860_name,
+                     int32   XputerAddr,
+                     int32   link_A,
+                     int32   link_B,
+                     int32   n_860s );
+
+
+#endif