--- VisualOS-1.0.4/src/CPU/editor/editor.c	Sat May 25 12:31:21 2002
+++ VisualOS-1.0.4-patched/src/CPU/editor/editor.c	Sat Jun  8 23:01:46 2002
@@ -51,7 +51,51 @@
 static GtkWidget *average_create = NULL;
 static proc_t *proc = NULL;
 static simul_data_t simul_data_backup;
-	
+
+#ifndef HAVE_DRAND48
+#define N	16
+#define MASK	((unsigned)(1 << (N - 1)) + (1 << (N - 1)) - 1)
+#define LOW(x)	((unsigned)(x) & MASK)
+#define HIGH(x)	LOW((x) >> N)
+#define MUL(x, y, z)	{ long l = (long)(x) * (long)(y); \
+(z)[0] = LOW(l); (z)[1] = HIGH(l); }
+#define CARRY(x, y)	((long)(x) + (long)(y) > MASK)
+#define ADDEQU(x, y, z)	(z = CARRY(x, (y)), x = LOW(x + (y)))
+#define X0	0x330E
+#define X1	0xABCD
+#define X2	0x1234
+#define A0	0xE66D
+#define A1	0xDEEC
+#define A2	0x5
+#define C	0xB
+static void next(void);
+static unsigned x[3] =
+{X0, X1, X2}, a[3] =
+{A0, A1, A2}, c = C;
+double
+drand48(void)
+{
+    static double two16m = 1.0 / (1L << N);
+    next();
+    return (two16m * (two16m * (two16m * x[0] + x[1]) + x[2]));
+}
+static void
+next(void)
+{
+    unsigned p[2], q[2], r[2], carry0, carry1;
+	    MUL(a[0], x[0], p);
+		ADDEQU(p[0], c, carry0);
+		ADDEQU(p[1], carry0, carry1);
+		MUL(a[0], x[1], q);
+		ADDEQU(p[1], q[0], carry0);
+		MUL(a[1], x[0], r);
+		x[2] = LOW(carry0 + carry1 + CARRY(p[1], r[0]) + q[1] + r[1] +
+			 a[0] * x[2] + a[1] * x[1] + a[2] * x[0]);
+		x[1] = LOW(p[1] + r[0]);
+		x[0] = LOW(p[0]);
+}
+#endif /* HAVE_DRAND48 */
+
 static struct {
 	gchar *name;
 	GtkWidget * (*create)(GladeXML  *xml);
@@ -182,7 +226,7 @@
 	GladeXML  *xml;
 	gint i;
 
-	srand48((guint) time(NULL));
+//	srand48((guint) time(NULL));
 	srand((guint) time(NULL));
 	
 	xml = glade_xml_new(get_xml_file(), "proc_properties");
--- VisualOS-1.0.4/src/CPU/editor/util.h	Sat May 25 12:31:25 2002
+++ VisualOS-1.0.4-patched/src/CPU/editor/util.h	Sat Jun  8 23:02:43 2002
@@ -19,6 +19,11 @@
 
 #include <math.h>
 #include <stdlib.h>
+
+#ifndef HAVE_DRAND48
+double drand48(void);
+#endif /* HAVE_DRAND48 */
+
 static gdouble inline exp_dist(gdouble average)
 {
 	gdouble u;