Tandy 600 Programmer's Reference Manual page 49

FUNCTION
4Eh
-
Find
First
Matching
File
AX
BX
CX
DX
SP:
BP:
SI:
Dl:
IP:
FLG
CS
DS
SS
ES
XXXXXXXX XXXXXXXX
XXXXXXXX XXXXXXXX
XXXXXXXX
XXXXXXXX
Entry;
AH =
4Eh
(function
code)
CX =
Search
attributes
DS:DX
=
File
reference
Exit:
AX
=
Status code
CX:DX
=
Information buffer
XXXXXXXXXXXXXXXXXXX
Function
4Eh
takes a
file
reference containing wild-card characters
and
returns
a data block
containing information about
the
first
directory entry which
matches
the
file
reference.
On
entry,
DX
contains
the
offset
(from the
segment
in
DS)
of
an
ASCIIZ
string
specifying the
file
reference.
CX
contains
file
attributes
which
restrict
the search.
On
return,
if
the carry
flag
is
reset the operation succeeded.
CX
contains the
segment address and
DX
the offset of
a
buffer
containing information about
the
matched
file.
The
information
in
the buffer
is in
the
following format:
Location Description
File
attributes
1-2
File
time
3-4
File
date
5-8
File
size
9-21
File
name
(ASCIIZ
string)
1.
File
Attributes
-
This byte contains the
attribute
defined:
01h
-
File
is
read only
02h
-
File
is
hidden
04h
-
File
is
a
system
file
20h
-
Archive
bit
44