Radio Shack TRS-80 model III Owner's Manual page 89

TRSDOS
$D
ATE
—
12339/X'3033'
$TIME—
12342/X'3036'
These
routines return the date
and
time
in
ascii format:
Date:
mm/dd/yy
Time:
hh/mm/ss
Entry Conditions
(HL)
=
Eight-byte buffer
to
receive the date/time text
CALL $DATE
CALL $TIME
Exit
Conditions
(HL)
=
Date or time
text
$DATLOC
—
16922/X'421 A'
$TIMLOC
—
16919/X'4217'
These
locations
store the date
and time
in
binary format:
$datloc (Three
bytes):
yy dd yy
$timloc (Three
bytes):
ss
mm
hh
$ERRDSP—
17417/X'4409'
This
routine displays a
trsdos
error
message determined
by
the
contents of the
accumulator
(A).
This register
contains an
error
code
(0
=
no
error) after
completion of any system
routine.
Entry Conditions
a
=
trsdos
error
code
(see
Table
at
the
end
of
this
section).
In a
trsdos
error
code,
bits
6 and
7 are
normally
reset (off).
So serrdsp
interprets
them
as
controls.
Not
Set
(Normal
Bit
#
Set
Condition)
7
Return
to caller
upon Return
to
trsdos upon
completion
completion
6
Give
detailed error
message
Give
error
number
only
call $errdsp
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