Texas Instruments 990 Operation Manual page 235

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APPENDIX C
CHARACfER SET
C.l ASSEMBLY LANGUAGE CHARACfERS
The Model 990 Assembly Language uses the ASCII characters listed in table Col. The table
includes the ASCII code for each character, represented as a hexadecimal value and as a decimal
value. The table also shows the corresponding Hollerith code. In addition to the characters listed
in table C-I, Model 990 Assembly Language defines six characters that are undefined in ASCII.
Table C-2 lists these characters, hexadecimal and decimal representations, corresponding Hollerith
codes, and the corresponding character on the Model 29 keypunch.
HexadedmaI
Value
20
21
22
23
24
25
26
27
28
29
2A
.28
2C
2D
2E
2F
30
31
32
33
34
35
36
37
38
39
3A
38
3C
3D
Table C-l. Owacter Set
Decimal
Value
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
C-l
Space
. .
#
S
%
&
(
)
*
+
Hollerith
Code
Blink
11-8-2
8-7
8·3
11-8·3
0-8-4
12
8·5
12·8·5.
11-8·5
11·8-4
12~8-6
0-8·3
11
12-8·3
/ 0·1
o
0
1 1
2 2
3 3
4 4
5 5
6 6
7 7
8 8
9 9
8·2
11-8·6
<
12·8-4
=
8-6
Digital Systems Division .