added logic for write, fixed logic for compare and jumps
Merge branch 'master' into joe-dev
Merge branch 'master' into joe-dev
added meeting notes for week 9
updated meeting notes
wrote logic for call, return instructions. Updated execute loop slightly to exit with a failure code rather than just break
added logic for shl and shla, set carry bit based on if the highest order bit is 1 or 0
added logic for shift operations including setting carry bits
Updated Assembler.cpp to current version
changed bitwise compares to hex from binary literals. Fixed typos
Merged in airricq/updated-assemblercpp-to-current-version-1394585801805 (pull request #11)

Updated Assembler.cpp to current version
fixed hex literal representation
Merged master into jack-dev2
fixed compile erros
Updated getInput function to ignore lines that are completely comments
fixed typos
Merged in joe-dev (pull request #8)

Finished VM Functions
Functions for add,addc,sub,subc
Merged master into airricq/assemblercpp-edited-online-with-bitbucke-1394587939686
Get rid of no sign warnings