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xio41.doc
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1995-04-22
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63 lines
XIO41.BIN can be loaded with option
L of the DOS 2 menu, or renamed
AUTORUN.SYS so that it boots up
when the computer is turned on.
This file will alter DOS 2 so that
it will accept the XIO 41 (binary
load) command found in DOS 3. The
syntax for the command is:
XIO 41,#n,a1,a2,"D:filename.ext"
n is the channel number. If the
user specifies a1<>0, the starting
address will be displayed. If a2
is specified as 100, the program
will be run at the starting
address. If a2 is specified as
200, the program will be run at
the RUN or INIT address found
in the loaded file.
Please note that BASIC program files, LIST files, and text files
will be rejected by this command.
In addition, when XIO41.BIN is run,
DUP.SYS is loaded and the bottom of
memory reset, so that when the DOS
menu is called up, the menu appears
right away, and any BASIC program
in memory is not erased.
A second version of this program
will be uploaded soon. The 2nd
version will not load DUP.SYS, and
the DOS menu cannot be called up
so that there is more memory
available for users.
This program is for use only with
DOS 2. If it is run with DOS 3 in
memory, it will probably lock up.
For reference, the following memory
locations are altered during
inititalization:
(HEX) (DEC)
$0A,$0B 10,11
$0C,$0D 12,13
$80,$81 128,129
$02E7,$02E8 743,744
The following memory locations are
used during the XIO process:
(HEX) (DEC)
$CB-$D1 203-209
$0238,$0239 568,569
Enjoy this program. If you have
any questions or comments, drop me
a line via the SIG or through
E-MAIL.
Rich Whitsell [75056,1527]