== RSX Commands in German and English; VDOS differences compared to AMSDOS ==
* Some commands are available in German and English language. This is an advantage when using more than one DOS ROM at the same time.
* Vortex is a German company, so they added RSX commands in German and English language. The normal AMSDOS RSX commands |TAPE.xx and |DRIVE/|USER were added as |CAS and |SELECT (which resemble equivalent German words ''Kassette'' and ''Selektieren''). Also (Dobbertin's X-DDOS does also supports both the English and German languageslanguage for RSX commands).
|SELECT is used to both select user and/or drive. e.g. |SELECT,"3" for user 3, |SELECT,"B" for drive B, |SELECT "4B" for user 4 on drive B. VDOS doesn't have USER or DRIVE commands.
* VDOS supplied both German ROMs (with messages in their native language) and English ROMs where the messages are translated. The RSX commands are identical. * When using CAS CATALOG you give the address of a buffer to fill with the list of files in the current user and drive(in SOFT968 this is a 2KB buffer - but that is only because there are 64 directory entries and each directory is 32 bytes). The For VDOS you should use a 4KB buffer to support 128 directory entries). In addition the format of this data differs compared to AMSDOS.
AMSDOS uses: