ZiLOG Z80-RIO Operating System User's Manual page 101

FORMAT FORMAT
NOTE: Diskettes formatted on OS 2.1 software are NOT
compatible with RIO. Refer to Appendix
0
for
conversion details.
Format interacts with FLOPPY through the system. The
driver $FLOPPY must appear in the Active Device Table.
On floppy disk-based systems, this occurs automatically.
On hard disk-based systems, FLOPPY is part of ZOOS,
and has an entry point two greater than the entry
address for ZOOS. It must be activated separately.
For example, if the ZOOS.60 is being used on a 64K
system, has been renamed to ZOOS, and has an
entry point of EOOOH, than a sequence of commands
such as:
ACTIVATE
$ZDOSi
X* $FLOPPY E002
would have to have been executed at some time prior to
issuing a FORMAT command.
I/O UNIT UTILIZATION
Unit 0:
Unit
1:
Unit 2:
Unit 4:
FLOPPY interaction
console interaction
console interaction
ZOOS interaction
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