IO port framework now works

A68k is defaulting all my address moves to word size, rather than
long.  I don't know whether I've expunged all this nonsense yet, but
I'm trying.

This version executes an infinite loop which writes 'A' to port 00h.
I've patched in a write-to-console function on port 00h, so this can
be used as a sort of debug monitor.

1 files changed, 14 insertions, 0 deletions

diff --git a/debug.c b/debug.c
new file mode 100644
index 0000000..b98e4f6
--- /dev/null
+++ b/debug.c
@@ -0,0 +1,14 @@
+/* Debugging routines for 680 project.
+ *
+ * Includes debug output.
+ *
+ * Copyright 2010, Astrid Smith
+ * GPL
+ */
+
+#include <stdio.h>
+
+void char_draw(char c)
+{
+	putchar((short)c);
+}