Tandy 1000 Programmer's Reference Guide

Chapter 1 I System Calls
Example:
The following program sets the system clock to 0 and
continuously displays the time. When any character
is
typed, the display stops changing;
typed again, the clock is reset
starts again.
time
ten db 18
d b "E E : 0 E : E E , E 0" , 1 3 ,
10 ,"$"
f unc-E6H: 5et-time E,E,E,E
read-clock: get-time
convert ch,ten,time
convert cl,ten,time[31
convert dh,ten,time[61
display time
dir-console-io
EFFH
J mP read-clock
]ne
5tOP
read-kbd
Imp f unc-06H
when
any character is
to 0 and the display
;see Function E9H
;for explanation of 4
;see Function ZDH
;see Function ZCH
;see end of chapter
;see end of chapter
;see end of chapter
;see Function E9H
;THIS FUNCTION
;ye5, 5top timer
;no,
keep timer
;running
;see Function 08H
;start over
39

Tandy 1000 Specifications

General

Processor	Intel 8088
Processor Speed	4.77 MHz
RAM	128 KB (expandable to 640 KB)
Operating System	MS-DOS 2.11
Manufacturer	Tandy Corporation
Release Year	1984
Storage	Single or double 5.25" floppy disk drive (360 KB), optional hard drive
Sound	Tandy 3-voice sound
Ports	Parallel, Serial
Graphics	CGA (Color Graphics Adapter)
Graphics Modes	320x200, 640x200