ASCII stands for American Standard Code for Information Interchange.
Below is the ASCII character table and this includes descriptions of the first 32 non-printing characters.
To type a character not available on your keyboard lookup the number in the column Dec and type Alt + Dec number.
If you want to make the character @ you type Alt+064.
mIRC got 2 identifiers $chr and $asc that can be used to convert a number or character into eachother.
//echo -a $chr(64)
it will display @ and if you type
//echo -a $asc(@)
it will display 64.
Dec
Char
Dec
Char
Dec
Char
Dec
Char
Dec
Char
Dec
Char
Dec
Char
Dec
Char
0
16
32
48
0
64
@
80
P
96
`
112
p
1
17
33
!
49
1
65
A
81
Q
97
a
113
q
2
18
34
"
50
2
66
B
82
R
98
b
114
r
3
19
35
#
51
3
67
C
83
S
99
c
115
s
4
20
36
$
52
4
68
D
84
T
100
d
116
t
5
21
37
%
53
5
69
E
85
U
101
e
117
u
6
22
38
&
54
6
70
F
86
V
102
f
118
v
7
23
39
'
55
7
71
G
87
W
103
g
119
w
8
24
40
(
56
8
72
H
88
X
104
h
120
x
9
25
41
)
57
9
73
I
89
Y
105
i
121
y
10
26
42
*
58
:
74
J
90
Z
106
j
122
z
11
27
43
+
59
;
75
K
91
[
107
k
123
{
12
28
44
,
60
<
76
L
92
\
108
l
124
|
13
29
45
-
61
=
77
M
93
]
109
m
125
}
14
30
46
.
62
>
78
N
94
^
110
n
126
~
15
31
47
/
63
?
79
O
95
_
111
o
127
ASCII number 0-31 got no real characters, those were intended for teleprinters and have functions such as: Start heading, Start of text, End of text, Line feed and such, some of those ASCII characters are now used by mIRC for control codes such as colour code.
Since mIRC runs on Windows $chr and $asc only got support for the newer extended ASCII table (the Microsoft table) and not the original IBM version.
The difference is:
mIRC's $chr(174) returns the same as Alt+0174 and not the same as Alt+174.
Alt+0174 returns ® while Alt+174 returns «. $asc works the same way, $asc(®) returns 174 while $asc(«) returns 171.
Here is the extended ASCII table (Microsoft version)
