--- a/target-utils/c139explore/lcd.c	Wed Nov 04 03:51:00 2015 +0000
+++ b/target-utils/c139explore/lcd.c	Wed Nov 04 04:09:44 2015 +0000
@@ -122,3 +122,53 @@
 	while (npix--)
 		send_pixel_value(pixval);
 }
+
+void
+cmd_hbars()
+{
+	int i, j, k, p;
+
+	/*
+	 * The result of this command should be 8 horizontal bars
+	 * in the natural RGB order.
+	 */
+	set_lcd_addr_region(16, 79, 0, 63);
+	for (i = 0; i < 8; i++) {
+		for (j = 0; j < 8; j++) {
+			p = 0;
+			if (i & 4)
+				p |= 0xF800;
+			if (i & 2)
+				p |= 0x07E0;
+			if (i & 1)
+				p |= 0x001F;
+			for (k = 0; k < 64; k++)
+				send_pixel_value(p);
+		}
+	}
+}
+
+void
+cmd_vbars()
+{
+	int i, j, k, p;
+
+	/*
+	 * The result of this command should be 8 vertical bars
+	 * in the natural RGB order.
+	 */
+	set_lcd_addr_region(16, 79, 0, 63);
+	for (i = 0; i < 64; i++) {
+		for (j = 0; j < 8; j++) {
+			p = 0;
+			if (j & 4)
+				p |= 0xF800;
+			if (j & 2)
+				p |= 0x07E0;
+			if (j & 1)
+				p |= 0x001F;
+			for (k = 0; k < 8; k++)
+				send_pixel_value(p);
+		}
+	}
+}