bugfix
console works, but testing is broken
PS now uint16
PC is now uint16
ksp and usp are now uint16
SR0,2 now uint16
decode now takes a uint16
page is now uint16
No longer need to cache instr for disasm
various read16 functions return uint16
console fixes and more uint16
more uint16
memory is now uint16
wip
MOre uint16
registers now uint16
move mmu to its own file
more conversions
Merge pull request #4 from davecheney/register

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