record keeping
rewrote scalar reg file and continued with ALU
finished step 1 and 2 from http://www.cs.umd.edu/class/sum2003/cmsc311/Notes/BinMath/addFloat.html for VADD
first pass VADD complete
Update .gitignore

Added tilde
merge Max into master
Merge branch 'Max'
Second message confirming that Matt merged his changes into master