pass some values from scanner to parser; print them in parser as test
print which register was provided, handle unexpected characters with an error, print string literals
Expression test
much simpler expression evaluation
Add label/symbol functionality, rudimentary first instruction (HLT)

Add /opt/local/include to get boost
Add parsing.h and parsing.cpp
Use --std=c++11 to get auto
Set "-Wdeprecated-register" in asm_lex.ll because flex's output uses de"register", deprecated in C++11
LR to RL, etc, for shift modifier
exprn.cpp test program for expression evaluation