Round 1: (implemented to run on D-machines only; completion: ~1 February)e20(635)\f9b8f0B1f5b64f0B
Round 1 presumes the Mesa 5.0 machine with long pointers, map instructions, and extensions for MDS switching (as in IME).l3008e20\f5b121f0B
Memory system	(completion: ~ 15 January)
OIS style:  MDS & rest of memory	(real, not virtual)
	(compiler extensions to support indexing by long numbers).l4256d3648e20\f5b
Interim D-machine file system	(completion: ~ 1 December)
Partitions & fast directory lookup.l4256d3648e5\f5b
Wizard's debugger	(proceeds in parallel with the above)
minimal extensions to existing IME/Mesa debugger.l4256d3648e5\f5b105f0B
Specifications needed   (~ 1 January)e20\f9b37f0B
Round 2:		(completion: ~ 1 July)e20\f9b8f5 24f0B
Builds upon/implements the relevant specifications for the Cedar environment, i.e., the OIS PrincOps and Interfaces.l3008e20\f5b
Rounds 2a and 2b can be done in either order, though there is a slight advantage to doing 2a first.  Both are substantial, incompatible changes to the Round 1 system and require a bootstrapping operation.l3008e20\f5b
Round 2a:  Interface recordsl3648e20\f5bi8I
implies changes to microcode, wizard's debugger, loaders (including Bootmesa), and Binder.  (compiler changes)l4448\f5b
Round 2b:	Virtual Memory/Pilotl3648e5\f5bi8I
implies Dorado microcode, incompatible file system, new interface to the wizard's debugger, OIS I/O.l4448\f5b100f0B
Round 3:e20\f9b8f0B
Rounds 3a and 3b can be done in either order.l3008e20\f5b
Round 3a:	Garbage collectorl3648e20\f5bi8I
relies on Type system specification.
implies retrofit of existing code.  (compiler changes)l4448\f5b
Round 3b:	Remote procedure callsl3648e5\f5bi8I