APPENDIX D

SCREEN DISPLAY CODES - 40 Columns

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The following chart lists all of the characters built into the Commodore screen character sets. It shows which numbers should be POKED into screen memory (locations 1024-2023) to get a desired character on the 40-column screen (Remember, to set color memory, use locations 55296 to 56295). Also shown is which character corresponds to a number PEEKed from the screen.

Two character sets are available. Both are available simultaneously in 80-column mode, but only is available at a time on the 40-column screen. The sets are switched by holding down the {shift} and {C=} (Commodore) keys simultaneously.

From BASIC, PRINT CHR$(142) will switch to upper case/graphics mode and PRINT CHR$(14) will switch to upper/lower case mode.

Any number on the chart may also be displayed in REVERSE. The reverse character code may be obtained by adding 128 to the values shown.

SET 1	SET 2	POKE		SET 1	SET 2	POKE
@		0				64
A	a	1			A	65
B	b	2			B	66
C	c	3			C	67
D	d	4			D	68
E	e	5			E	69
F	f	6			F	70
G	g	7			G	71
H	h	8			H	72
I	i	9			I	73
J	j	10			J	74
K	k	11			K	75
L	l	12			L	76
M	m	13			M	77
N	n	14			N	78
O	o	15			O	79
P	p	16			P	80
Q	q	17			Q	81
R	r	18			R	82
S	s	19			S	83
T	t	20			T	84
U	u	21			U	85
V	v	22			V	86
W	w	23			W	87
X	x	24			X	88
Y	y	25			Y	89
Z	z	26			Z	90
[		27				91
{pound}		28				92
]		29				93
^		30		{pi}		94
{left arrow}		31				95
{space}		32		{space}		96
!		33				97
"		34				98
#		35				99
$		36				100
%		37				101
&		38				102
'		39				103
(		40				104
)		41				105
*		42				106
+		43				107
,		44				108
-		45				109
.		46				110
/		47				111
0		48				112
1		49				113
2		50				114
3		51				115
4		52				116
5		53				117
6		54				118
7		55				119
8		56				120
9		57				121
:		58				122
;		59				123
<		60				124
=		61				125
>		62				126
?		63			127

Codes from 128-255 are reversed images of codes 0-127.