Tandy 600 Programmer's Reference Manual page 52

Bios programmers
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FUNCTION
54h
-
Get
Setting of
Disk
Verify Flag
AX
BX
CX
DX
SP:
BP:
SI:
Dl:
IP:
FLG
CS
DS
SS
ES
XXXXXXXX
XXXXXXXX
Entry:
AH
=
54h
(function
code)
Exit
AL =
Verify flag setting
This function returns the current
setting
of
the disk
verify after write
flag.
On
exit,
AL
will
contain the current
flag setting.
If
the
flag
is
set
(AL
=
1),
then
disk write
operations are being
verified.
If
the
flag
is
clear
(AL
=
0),
disk write operations are not
being
verified.
47

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