Add Macintosh M68k suspend program and user guide.

Signed-off-by: Ricky Zhang <rickyzhang@gmail.com>

cxmon/utils/README.md

@@ -0,0 +1,22 @@
+# What
+suspend.bin is a MacBinary file which supposes to upack and run in M68k Macintosh only. It runs emul_op `0x7138` and trigger BasiliskII into cxmon so that you can add break points there.
+
+# How
+1. You must build Basilisk II `--with-mon` options.
+1. Copy suspend.bin into Macintosh guest OS.
+1. Unpack it with MacBinary.
+1. Run the program when you want to add break points.
+1. Once you are in cxmon, type `h` and you can see the new break point commands.
+1. Once you are done, type `x` to return back to emulation.
+
+# Break point commands
+
+```bash
+ba [address]             Add a break point
+br [breakpoints#]        Remove a break point. If # is 0, remove all break points.
+bd [breakpoints#]        Disable a break point. If # is 0, disable all break points.
+be [breakpoints#]        Enable a break point. If # is 0, enable all break points.
+bi                       List all break points
+bs "file"                Save all break points to a file
+bl "file"                Load break points from a file
+```