Tandy 1000 Programmer's Reference Guide

Chapter 1 I System Calls
Example:
The following program displays the file named TEXTFILE.ASC
that
is on the disk in Drive B; its function is similar to the MS-
DOS TYPE command. If a partial record is in the buffer at end
of file, the routine that displays the partial record displays char-
acters until
it encounters an end of file mark (ASCII 26, or
CONTROL-Z).
fcb
buffer
func-14H:
read-line:
check-more:
f ind-eof :
a1 1-done :
db
db 25 dup
(7)
db 128dup (7),"$"
2 , "T E X T F I LE AS C "
set-dta buffer
open fcb
read-seq fcb
CmP al,0ZH
Je all-done
CmP al,02H
19 check-more
display buffer
JmP read- I i ne
CmP al,03H
1 ne all-done
CmP bufferLsil26
le
a1 1-done
display-char buffer
[si1
xor 51,51
inc 51
Imp f ind-eof
close fcb
;see Function
IAH
;seeFunction 0FH
;THIS FUNCTION
;endof file?
;endof filewith
;partial record?
;see Function 09H
;get another record
;partial record inbuffer?
;no,
gohome
;set index to0
;is character EOF?
;yes, nomore todisplay
;see Function 02H
;bump index
to next
;character
;check next character
;seeFunctionlBH
;ye5
;ye5
59

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