Some of the best known RSX commands are the ones provided by AMSDOS, as they were present on all CPC664, CPC6128, 6128plus and CPC464 with DDI-1:
<b>|A</b><br>
Makes drive A: the current work drive
<b>|B</b><br>
Makes drive B: the current work drive
<b>|CPM</b><br>
Starts CP/M (or other systems) from a system disk
<b>|DISC</b><br>
Switches back to disk drive use after |TAPE
<b>|TAPE</b><br>
Makes the CPC use the tape recorder for file access
For a full command reference to the AMSDOS RSX commands, see [[AMSDOS]].
RSX command extensions can be implemented through ROMs (like AMSDOS or other disk operating systems) or by programs.