Sharp MZ-700 Owner's Manual page 154

Name and entry point (hex.)
CALLMSTP
(0047)
CALL TIMST
(0033)
CALLTIMRD
(003B)
CALLBRKEY
(OOlE)
CALLGETL
(0003)
CALLGETKY
(OOlB)
Special key read
withGETKY
Function
Stops the sound generated with the CALL MSTA subroutine.
Sets and starts the built-in clock. Registers must be set as
follows before this routine is called.
ACC ~ 0 (AM), ACC ~ 1 (PM)
DE~ 4-digit hexadecimal number representing the time in
seconds.
Reads the built-in clock and returns the time as follows.
ACC ~ 0 (AM), ACC ~ 1 (PM)
DE~ 4-digit hexadecimal number representing the time in
seconds.
Checks whether the
I
SHIFT
I
and
I BREAK
I
keys are both
being pressed. The Z flag is set when they are being pressed
simultaneoulsy; otherwise, it is reset.
Reads one line of data from the keyboard and stores it in the
memory area starting at the address indicated in the DE
register. This routine stops reading data when the RETURN
key is pressed, then appends a carriage return code (OD) to
the end of the data read.
A maximum of 80 characters (including the carriage return
code) can be entered in one line.
Characters keyed in are echoed back to the display, and cursor
control codes can be included in the line.
When the
I
SHIFT
I
and
I BREAK
I
keys are pressed
simultaneously, BREAK code is stored in the address indicated
in the DE register and a carriage return code is stored in the
subsequent address.
Reads a character code (ASCII) from the keyboard.
If no key is pressed, control is returned to the calling program
with 00 set in ACC.
No provision is made to avoid data read errors due to key
chatter, and characters entered are not echoed back to
the display.
\
Register
saved
Other
than AF
Other
than AF
Other
than AF
and DE
Other
than AF
All
registers
Other
than AF
When any of the special keys (such as
I DEL I
or
I CRI )
are pressed, this
subroutine returns a code to ACC which is different from the correspond-
ing ASCII code as shown below. Here, display codes are used to address
characters stored in the cahracter generator, and are different from the
ASCII codes.
'•
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· . · . · · ·
;;;~'l~i)j.::·
DEL
. ·.
60 C7
INST
61 C8
ALPHA
.:·.
62 C9
,.
BREAK
,~·.;
64 CB
CR
66
CD
D 11 Cl
a
'
12 C2
a
13 C3
11
,;
14 C4
I
HOME!
15 CS
I€LRI
·:
16
C6
152 ------------------------------------------------------------------------