\C{} Changes of RxDOS version 7.20N since 7.1.5

\n Only Netwide Assembler (NASM) 2.04+ used for assembling.

\n Changed names of these programs:

\lcont{
\c RxDOSBIO   to RxBIO
\c RxDOSCMD   to RxCMD
\c RxD_BOOT   to RxD_BOOT and RxBOOT (see also below)
\c RxDOSMBR   to RxMBR
}

\n RxD_BOOT slightly modified:

\lcont{
\n Splitted into RxBOOT (the actual boot sector) and RxD_BOOT (the boot
     sector write program).

\n RxD_BOOT is now assembled into a .COM program file. Removed unused padding
     which made the file's size about 32 KiB.

\n RxD_BOOT can use Int25/26 instead of direct DOS device driver calls which
     makes it work in NTVDM and possible other environments that don't support
     direct DOS device driver calls.
}

\n Format of the source files modified:

\lcont{
\n The source files now use tab characters to make editing them easier. The
     tab characters should be expanded to up to 8 spaces for displaying.

\n Removed the funny boxes drawn with ; ' - . characters. Use the MASM source
     if you really need them.
}

\n Replaced COPYING and gpl.txt by LICENSE.TXT which is an up-to-date
   plain-text GNU GPL Version 2 from http://www.gnu.org/

\n Directory structure changed.

\lcont{
   Former:

\c \         Binaries, documentation, license,
\c            makefile, link files
\c \sources  Actual source, include/macro files, license
\c \objs     Object files
\c \errors   Assembler and linker error messages

   New:

\c \         Make scripts
\c \RxBIO    RxBIO source
\c \RxDOS    RxDOS source
\c \RxCMD    RxCMD source
\c \RxAPP    Sources of RxMBR, RxBOOT, RxD_BOOT, RxVDISK
\c \MACRO    Macro files
\c \doc      Documentation, license
\c \lst      Listings
\c \map      Map files
\c \obj      Object files
\c \bin      Binaries
}

\n Some new or corrected code for RxDOS 7.30 added to source files. This
   code is deactivated using NASM conditional assembly and it'll get actived in
   the first release after RxDOS 7.20N (planned as RxDOS 7.30).
