[cbmbasic] improve patch comment and name

Signed-off-by: Robert Schwebel <r.schwebel@pengutronix.de>

1 files changed, 47 insertions, 0 deletions

diff --git a/patches/cbmbasic/add_iobase.diff b/patches/cbmbasic/add_iobase.diff
new file mode 100644
index 000000000..55e86adf1
--- /dev/null
+++ b/patches/cbmbasic/add_iobase.diff
@@ -0,0 +1,47 @@
+Subject: Add IOBASE and pseudo-timer (will give RND-functionality)
+From: Wolfram Sang <ninja@the-dreams.de>
+
+Signed-off-by: Wolfram Sang <ninja@the-dreams.de>
+
+# ---
+# Already sent mainline and accepted.
+
+Index: basic/runtime.c
+===================================================================
+--- basic.orig/runtime.c	2008-11-17 05:16:31.000000000 +0100
++++ basic/runtime.c	2008-11-17 05:43:31.000000000 +0100
+@@ -29,6 +29,7 @@
+ #include <stdlib.h>
+ #include <stdio.h>
+ #include <string.h>
++#include <time.h>
+ 
+ unsigned char RAM[65536];
+ 
+@@ -155,6 +156,7 @@
+ 		interactive = 1;
+ 		f = NULL;
+ 	}
++	srand(time(NULL));
+ }
+ 
+ static void
+@@ -565,8 +567,16 @@
+ /* IOBASE */
+ static void
+ IOBASE() {
+-		printf("UNIMPL: IOBASE\n");
+-		exit(1);
++		/*
++		 * IOBASE is just used inside RND to get a timer value.
++		 * So, let's fake this here, too.
++		 */
++		int pseudo_timer = rand();
++		RAM[0xDC04] = pseudo_timer&0xff;
++		RAM[0xDC05] = pseudo_timer>>8;
++
++		X = 0x00;
++		Y = 0xDC;
+ }
+ 
+ int