--- trunk/src/devices/dev_mp.c	2007/10/08 16:18:19	8
+++ trunk/src/devices/dev_mp.c	2007/10/08 16:19:11	18
@@ -25,7 +25,7 @@
  *  SUCH DAMAGE.
  *   
  *
- *  $Id: dev_mp.c,v 1.27 2005/06/11 20:51:41 debug Exp $
+ *  $Id: dev_mp.c,v 1.29 2005/10/26 14:37:04 debug Exp $
  *
  *  This is a fake multiprocessor (MP) device. It can be useful for
  *  theoretical experiments, but probably bares no resemblance to any
@@ -70,7 +70,8 @@
 	int i, which_cpu;
 	uint64_t idata = 0, odata = 0;
 
-        idata = memory_readmax64(cpu, data, len);
+	if (writeflag == MEM_WRITE)
+	        idata = memory_readmax64(cpu, data, len);
 
 	/*
 	 *  NOTE: It is up to the user of this device to read or write
@@ -221,6 +222,15 @@
 			cpu_interrupt_ack(d->cpus[cpu->cpu_id], MIPS_IPI_INT);
 		break;
 
+	case DEV_MP_NCYCLES:
+		/*
+		 *  Return approximately the number of cycles executed
+		 *  in this machine.  (This value is not updated for each
+		 *  instruction.)
+		 */
+		odata = cpu->machine->ncycles;
+		break;
+
 	default:
 		fatal("[ dev_mp: unimplemented relative addr 0x%x ]\n",
 		    relative_addr);