Sharp mz-3500 Manual For Use page 189

Business computer eos 3.0
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Section A:
System interface
************************************************************************
*
*
*
*
19 - Erase file
*
*
************************************************************************
On entry:
c
l3H
DE
Address of FCB
On return:
A
H
Error code
Physical error code
Possible logical errors:
- none -
Possible physical errors:
1
Read/write error
2
Drive is write protected
3
File is write protected
4
Drive not selectable
Differences to CP/M plus:
Passwords and_ erasure of XFCBs are not supported.
Differences to CP/M 2.2 resp. DiCOS:
If
any
of the files to be erased is write protected,
no files at
all
will be erased.
All
files matching the file name specified in the FCB will
be
erased.
The file name may contain question marks.
If file attribute fS' is set,
only
XFCBs are to be erased,
Because EOS does not support XFCBs,
this
operation
mode
is treated as
a
successful
erasure,
i.e.,
actually
nothing will be erased, but A and H are returned with zero values.
If one or more of the files to be erased is write protected, the erasure
function will be aborted.
No files at all will be erased,
whether they
are write protected or not.
If
no file to be
Physical
errors
mode.
EOS System manual
erased could be found,
A is set to 0FFH upon
are treated according to the specified error
Daeumling & Zimmermann
return.
handling
Page 52

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