Reorganization.
Merge disassembler into assembler.py.
Clean up.
Moar claenup
Minor rearrangement.
Getting ready to test RISC with mock ram.
test_Mov_imm
FIX 'RISC' object has no attribute 'ira'

calling view() method before first cycle() breaks.
Merge pull request #1 from bronanny/master

Rearrange and clean up, beginnings of tests.