The AHA/BusLogic reset controllers' BIOS commands now return 0x80 (no device present error) for CD-ROM drives if the device is market as not supporting CD-ROM boot, fixes sending of WRITE (10) to CD-ROM drives followed by hang;

The CD-ROM and SCSI disk REQUEST SENSE commands no longer incorrectly set the phase to status;
REQUEST SENSE with non-data direction control byte is now treated as a request to send sense bytes from the command directly to the sense buffer;
SCSI and SLiRP threads now terminate themselves again when out of the while loop;
SCSI and SLiRP mutexes are now closed when the threads terminate themselves;
Fixed a bug causing the "Press F12+F8 or middle mouse button to release" string on the title bar to get corrupt.

src/network/net_slirp.c

@@ -147,6 +147,8 @@ poll_thread(void *arg)
     thread_destroy_event(evt);
     evt = poll_tid = NULL;
 
+    thread_close_mutex(slirpMutex);
+
     pclog("SLiRP: polling stopped.\n");
 }