RW13

Another post was talking about making a boot disk.  With this sector read/write, you can
make a data file of one or more sectors and write it to sectors on a disk.  So, I got
out my RW12 and tried to read and write sectors 1 to 4 and it messed up the
sectors to read and write, always doing sectors 1 to 720 regardless of the
begin and end sectors you specify.  The error occurred when I made RW so
you can make a single density .ATR of a real disk.  So, I fixed that bug and
here is RW13.BAS, RW13.LST and RW13.COM.