Merge pull request #16 from dmpro2014/register-directory-and-files

Register directory and files
Wire up new control signals from decode; rd and shamt
Merge pull request #17 from dmpro2014/control_signals

Wire up new control signals from decode; rd and shamt
Merge control into decode, and split warp drive out
Rename control signals
Remove control from .xise file
Implement instruction decode
Merge pull request #18 from dmpro2014/control_decode_merge

Control decode merge
Merge pull request #20 from dmpro2014/decode_impl

Implement instruction decode
instruction/decode tb and updated implementation
Wire constant write enable
Merge pull request #21 from dmpro2014/tb_decode_control

Tb decode control
lowercase unstruction memory
Finished instruction memory tb
Merge pull request #22 from dmpro2014/rebase-instruction-memory

Rebase instruction memory
Merge branch 'master' into register-directory-and-files

Conflicts:
	vhdl.xise
Add  log barrel height constant