Added in Arron's modified code for parse_operand
Merge pull request #92 from Ricky1833/master

Added in Arron's modified code for parse_operand
removed $ appending for addresses, handles ebit
Merge pull request #93 from Ricky1833/master

removed $ appending for addresses, handles ebit
adding handling for some cases of format 2
Merge pull request #94 from Ricky1833/master

adding handling for some cases of format 2
Merge pull request #36 from IanJRigg/master

before refactor