addressing modes:
R   [A-D][LH]
D   [0-9A-F]{4}
MD  \[[0-9A-F]{4}\]
MA  \[[A-D][LH]\]

MOV:
R<-D
R<-MD
R<-MA
MD<-R
MA<-R

CMP:
R~R
R~D
R~MD
MA~D

MATH:
R<-R
R<-D