Tandy 1000 Programmer's Reference Guide

Chapter 1 I System Calls
;I WANTlength header
;minus 1 in cx
dec
cx
xor di,di
mov output-buffer[dil,al
inc di
loop move-header ;FIX THIS'
convert sector-num[ll,sixteen,
add di ,Z
convert sector num,sixteen,
display output-buf fer
blank-line 2
mov cx, 16
call convert-line
display output-buffer
loop dump-it
blank-line 3
display continue-prompt
get-char-no-echo
display crlf
POP cx
ret
mov-header: mov al,header[dil
output-buffertdil
output-buffer[dil
dump-it : call clear-line
display-screen endp
; ENDPROCEDURES
subttlMA1N PROCEDURES
Page +
main-procedure: call setup
check-done: CmP sectors-to-dump,zero
1 n9 a1 I-done
call read-disk
mov cx,sectors-read
display-it: call display-screen
call display-screen
i nc sector-number
loop display-it
Imp check-done
all-done: display end-st r ing
get-char-no-echo
code ends
end start
~
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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