From 576f5b39e5c32d06eb2dcec68d56db7f530cc483 Mon Sep 17 00:00:00 2001
From: Mark Pizzolato <mark@infocomm.com>
Date: Sat, 7 May 2016 15:21:40 -0700
Subject: [PATCH] SCP: Add ability to display device description if -D
 specified on SHOW DEVICE

The SHOW FEATURES will enumerate all devices in a simulator and for each of
them display the device specific description if one is available.

This change allows the description to be optionally visible for a single device
displayed with SHOW DEVICE.
---
 scp.c | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/scp.c b/scp.c
index c9d647bd..3dbb14d8 100644
--- a/scp.c
+++ b/scp.c
@@ -4197,6 +4197,10 @@ fprintf (st, "%s", sim_dname (dptr));                   /* print dev name */
 if ((flag == 2) && dptr->description) {
     fprintf (st, "\t%s\n", dptr->description(dptr));
     }
+else {
+    if ((sim_switches & SWMASK ('D')) && dptr->description)
+        fprintf (st, "\t%s\n", dptr->description(dptr));
+    }
 if (qdisable (dptr)) {                                  /* disabled? */
     fprintf (st, "\tdisabled\n");
     return SCPE_OK;
@@ -7659,6 +7663,8 @@ DEVICE *find_dev (const char *cptr)
 int32 i;
 DEVICE *dptr;
 
+if (cptr == NULL)
+    return NULL;
 for (i = 0; (dptr = sim_devices[i]) != NULL; i++) {
     if ((strcmp (cptr, dptr->name) == 0) ||
         (dptr->lname &&