Tandy 1000 Programmer's Reference Guide

Appendix B I Keyboard ASCII and Scan Codes
ASCII Codes
As of Oct. 22 1984
Scan Keyboard SHIFT CTRL
Code Legend Normal ALT Remarks
30
31
32
33
34
35
36
37
38
39
3A
3B
3c
3D
3E
3F
40
41
42
43
44
45
46
47
48
49
4A
4B
4c
4D
4E
4F
50
51
52
53
54
B
N
M
<
>
I ?
SHIFT
PRINT
ALT
space bar
CAPS
F1
F2
F3
F4
F5
F6
F7
F8
F9
F1O
NUM LOCK
HOLD
7
\
8
9 PG UP
DOWN ARROW
5
6
RIGHT ARROW
1 END
2
3 PG DN
0
BREAK
4
I
DELETE
55
+ INSERT
56
57 ENTER
58 HOME
59
F11
5A F12
62
6E
6D
2c
2E
2F
10
20
x3B
x3c
x3D
x3E
x3F
x40
x41
x42
x43
x44
*
*
*
*
*
37
38
39
x50
34
35
36
x4D
31
32
33
30
2D
xOO
2B
2E
0D
x47
x98
x99
42
4E
4D
3c
3E
3F
*
*
*
20
x54
x55
x56
x57
x58
x59
x5A
x5B
x5c
x5D
*
*
*
5c
7E
x49
x86
7c
xF3
xF4
x88
x4F
60
x5
1
x9B
x53
xOO
x52
xAl
OD
x4A
xA2
xA3
02
OE
OD
xF9
xFA
xFB
x72
20
x5E
x5F
x60
x61
x62
x63
x64
x65
x66
x67
*
*
*
*
*
x93
x94
x84
x96
x95
xFC
xFD
x74
x75
x9A
x76
x9c
x9D
*
x9F
xA4
0A
x77
xAC
xAD
x30
x3
1
x32
x89
x8A
xF2
x46
20
x68
x69
x6A
x6B
x6C
x6D
x6E
x6F
x70
x71
*
*
*
*
*
*
*
*
x97
*
*
*
xEA
*
*
*
*
x9E
*
xA0
xA5
x8F
xA6
xB6
xB7
Right SHIFT
SCR Print Toggle
Alternate Mode
Caps lock
number lock
Freeze display
scroll lock bit
toggle control
brk routine
(INT 1BH)
Numeric keypad
Numeric keypad
227

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