flash works, added new capture

two captures now on file:
d151801-0642
d151801-2860
files are slightly different, but not drastically so.

a new test.asm/assembletest.bat allows for quick assembly of test code
to be loaded to flash and executed.
disassembly bug with sub fb46 fixed

sub fb46 doesn't RTS, it instead pulx  jmp 2,x 's which means the 2
bytes after the jsr sub_fb46 are actually data, not code. manually
unflagged and reflagged the source to get things back into shape, and
learned something new today.