--- a/xrogue/rooms.c	Fri Feb 19 21:02:28 2016 -0500
+++ b/xrogue/rooms.c	Wed Mar 02 21:13:26 2016 -0500
@@ -20,7 +20,11 @@
 #include <curses.h>
 #include "rogue.h"
 
-do_rooms()
+void horiz(int cnt);
+void vert(int cnt);
+
+void
+do_rooms(void)
 {
     register int i;
     register struct room *rp;
@@ -107,7 +111,7 @@
 
             has_gold = TRUE;    /* This room has gold in it */
 
-            item = spec_item(GOLD, NULL, NULL, NULL);
+            item = spec_item(GOLD, 0, 0, 0);
             cur = OBJPTR(item);
 
             /* Put the gold into the level list of items */
@@ -177,9 +181,7 @@
  */
 
 coord *
-doorway(rp, door)
-register struct room *rp;
-register coord *door;
+doorway(struct room *rp, coord *door)
 {
     register int misses = 0;
     static coord answer;
@@ -208,8 +210,8 @@
  * Draw a box around a room
  */
 
-draw_room(rp)
-register struct room *rp;
+void
+draw_room(struct room *rp)
 {
     register int j, k;
 
@@ -236,8 +238,8 @@
  *      draw a horizontal line
  */
 
-horiz(cnt)
-register int cnt;
+void
+horiz(int cnt)
 {
     while (cnt--)
         addch(HORZWALL);
@@ -248,9 +250,8 @@
  *      pick a random spot in a room
  */
 
-rnd_pos(rp, cp)
-register struct room *rp;
-register coord *cp;
+void
+rnd_pos(struct room *rp, coord *cp)
 {
     cp->x = rp->r_pos.x + rnd(rp->r_max.x-2) + 1;
     cp->y = rp->r_pos.y + rnd(rp->r_max.y-2) + 1;
@@ -265,8 +266,7 @@
  */
 
 struct room *
-roomin(cp)
-register coord *cp;
+roomin(coord *cp)
 {
     register struct room *rp;
 
@@ -281,8 +281,8 @@
  *      draw a vertical line
  */
 
-vert(cnt)
-register int cnt;
+void
+vert(int cnt)
 {
     register int x, y;