Assembly Progress

Fully featured stack w/ functional stack pointer
Multiplication instruction
Disassembly now functional
Sanity check introduced, used to identify incomplete instructions
Several command line tools (-a to assemble, -ld to load on start, -d to
disassemble)
CMP, MVN, SWP complete
BX removed
Support for binary and hex literals
Encapsulated the transition to / from integers and byte[]
Execution autoexit on completion
Processor can now be destroyed / restarted safely
Disassembly no longer puts AL everywhere