Tandy 1000 Programmer's Reference Guide

Chapter 1 I System Calls
Example:
The following program creates a file named DIR.TMP on the
disk in Drive
B that contains the disk number (0 = A, 1 = B,
etc.) and filename from each directory entry on the disk.
record-size equ
fcbl
fcb2
buffer
func-15H:
wr i te-i t :
all-done:
db
db
db
db
db
set-dta
search-first
CmP
Je
create
mov
wri te-5eq
search-next
CmP
le
J mP
close
14
2,"DIR
TMP"
25 dup (7)
25 dup (7)
l28dup (7)
2, "7 7 7 7 7 77 7 7 7 7"
;offset of Recordsize
:field inFCB
buffer ;see Function
1AH
fcb2 ;see Function 11H
a1 ,BFFH ;directoryentry found?
all-done
;no, no filesondisk
fcbl
;5ee Function 16H
fcbl [record_sizel,l2
fcbl ;THISFUNCTION
fcb2 5ee Function 12H
a1 ,EFFH directoryentry found?
a1 I-done no, go home
wr i te-i t
fcbl 5ee Function 1EH
;set recordsize to12
ye5,writethe record
61

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