0200-19FF Display
1A00-1BFF udata/stack
1C00-7FFF Common, data and some kernel code
-8000-FEFF User space
+8000-FDFF User space
+FE00-FEFF Free
FF00-FFFF I/O etc
Kernel Mode View
Make the boot loader robust (timeout handling)
Add hash of code not just simple magic - so we know bits match
-Why doesn't coco keyboard auto-mapping work ?
-Why don't we find the root fs (IDE mapping bug ?)
Support for a real time clock and clock locking
Review irq disabling. We shouldn't need much of this at all as we don't have