Tandy 1000 Programmer's Reference Guide

Chapter 1 I System Calls
put-blank
setup
setup
;CONVERT-LINE
convert-line
convert-it:
display-ascii:
printable:
non-printable:
convert-line
;DISPLAY-SCREEN
endp
proc ;
display start-prompt
get-5 t r ing
di5play crlf
convert-to-binarydigits,
current-length,start-5ector
mov ax,start-sector
mov sector-number,ax
di splay sectors-prompt
get-string 4,buffer
convert-to-binary digits,
current-length, sec tors-to-dump
4, buffer
ret
endp
proc;
push
mov
mov
convert
inc
add
call
sub
mov
add
mov
CmP
CmP
19
mov
mov
inc
inc
POP
ret
endp
loop
11
loop
proc;
push
call
mov
cx
di ,9
cx,16
input-buffer[sil,sixteen,
output-buffer[dil
di ,2
put-blank
convert-it
51, 16
cx, 16
dl ,4
output-buffer[dil,period
input-buffer[sil,blank
non-printable
input-buffer[5il,tilde
non-printable
dl,input-buffer[sil
output-buffer[dil,dl
di
display-a5cii
51
51
cx
cx
clear-line
cx, 17
146

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