Tandy 1000 Programmer's Reference Guide

Chapter 1 I System Calls
subttl DATASEGMENT
page
+
data
input-buffer
output-buffer
start-prompt
sectors-prompt
continue-prompt
header
end-string
crlf
table
ten
sixteen
start-sector
sector-num
sector-number
sectors-to-dump
sectors-read
buffer
mar-length
current-length
diglt5
data
segment
db
db
db
db
db
db
db
db
db
db
db
db
dw
label
dw
dw
dw
label
db
lb
db
ends
subttl STACKSEGMENT
stack segment
s tac k-t op label
stack ends
subttl
MACROS
page +
page +
dw
INCLUDE 8:CALLS.MAC
;BLANK LINE
blank-line macro
local
push
call
mov
print-i
t: di splay
loop
POP
endm
9 dup
(512 dup(7))
77 dup(" "1
BDH,BAH,"$"
"Start at sector: S"
"Number of sectors: t"
"RETURN to continue t"
"Relative sector S"
BDH, 0AH , BAH, 07H ,"ALL DONE$"
;DELETETHIS
0DH,0AH,"$"
"81 23456789ABCDEFt"
10
16
1
byte
0
sectors-per-read
0
byte
0
0
5 dup(7)
stack
100 dup(7)
word
number
print-it
clear-line
CY ,number
output-buffer
print-it
cx
cx
144

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