147
MIDI Implementation
* 1: table 1 (Common Parameter - Partial Mute)
* 2: table 2 (Patch Parameter - Tone Select)
* 3: table 3 (Patch Parameter - Partial Select)
4. Supplementary Material
■
Decimal and Hexadecimal Table
(An “H” is appended to the end of numbers in hexadecimal notation.)
In MIDI documentation, data values and addresses/sizes of Exclusive messages,
etc. are expressed as hexadecimal values for each 7 bits.
The following table shows how these correspond to decimal numbers.
D
: decimal,
H
: hexadecimal
*
Decimal values such as MIDI channel, bank select, and program change are
listed as one greater than the values given in the above table.
*
A 7-bit byte can express data in the range of 128 steps. For data where greater
precision is required, we must use two or more bytes. For example, two
hexadecimal numbers aa bbH expressing two 7-bit bytes would indicate a value
of aa x 128+bb.
*
In the case of values which have a +/- sign, 00H = -64, 40H = +/-0, and 7FH =
+63, so that the decimal expression would be 64 less than the value given in the
above chart. In the case of two types, 00 00H = -8192, 40 00H = +/-0, and 7F 7FH
= +8191. For example, if aa bbH were expressed as decimal, this would be aa
bbH - 40 00H = aa x 128+bb - 64 x 128.
*
Data marked “Use nibbled data” is expressed in hexadecimal in 4-bit units. A
value expressed as a 2-byte nibble 0a 0bH has the value of a x 16+b.
<Example1> What is the decimal expression of 5AH?
From the preceding table, 5AH = 90
<Example2> What is the decimal expression of the value 12 34H
given as hexadecimal for each 7 bits?
From the preceding table, since 12H = 18 and 34H = 52
18 x 128+52 = 2356
<Example3> What is the decimal expression of the nibbled value
0A 03 09 0D?
From the preceding table, since 0AH = 10, 03H = 3, 09H = 9, 0DH = 13
((10 x 16+3) x 16+9) x 16+13 = 41885
<Example4> What is the nibbled expression of the decimal value
1258?
16 ) 1258
16 ) 78 ...10
16 ) 4 ...14
0 ... 4
Since from the preceding table, 0 = 00H, 4 = 04H, 14 = 0EH, 10 = 0AH, the result is:
00 04 0E 0AH.
BIN
DEC
Description
00B
0
Partial2 Off, Partial1 Off
01B
1
Partial2 Off, Partial1 On
10B
2
Partial2 On, Partial1 Off
11B
3
Partial2 On, Partial1 On
BIN
DEC
Description
00B
0
Upper Off, Lower Off
01B
1
Upper Off, Lower On
10B
2
Upper On, Lower Off
11B
3
Upper On, Lower On
BIN
DEC
Description
0000B
0
Upper Partial2 Off, Upper Partial1 Off,
Lower Partial2 Off,Lower Partial1 Off
0001B
1
Upper Partial2 Off, Upper Partial1 Off,
Lower Partial2 Off,Lower Partial1 On
0010B
2
Upper Partial2 Off, Upper Partial1 Off,
Lower Partial2 On,Lower Partial1 Off
0011B
3
Upper Partial2 Off, Upper Partial1 Off,
Lower Partial2 On,Lower Partial1 On
0100B
4
Upper Partial2 Off, Upper Partial1 On,
Lower Partial2 Off,Lower Partial1 Off
0101B
5
Upper Partial2 Off, Upper Partial1 On,
Lower Partial2 Off,Lower Partial1 On
0110B
6
Upper Partial2 Off, Upper Partial1 On,
Lower Partial2 On,Lower Partial1 Off
0111B
7
Upper Partial2 Off, Upper Partial1 On,
Lower Partial2 On,Lower Partial1 On
1000B
8
Upper Partial2 On, Upper Partial1 Off,
Lower Partial2 Off,Lower Partial1 Off
1001B
9
Upper Partial2 On, Upper Partial1 Off,
Lower Partial2 Off,Lower Partial1 On
1010B
10
Upper Partial2 On, Upper Partial1 Off,
Lower Partial2 On,Lower Partial1 Off
1011B
11
Upper Partial2 On, Upper Partial1 Off,
Lower Partial2 On,Lower Partial1 On
1100B
12
Upper Partial2 On, Upper Partial1 On,
Lower Partial2 Off,Lower Partial1 Off
1101B
13
Upper Partial2 On, Upper Partial1 On,
Lower Partial2 Off,Lower Partial1 On
1110B
14
Upper Partial2 On, Upper Partial1 On,
Lower Partial2 On,Lower Partial1 Off
1111B
15
Upper Partial2 On, Upper Partial1 On,
Lower Partial2 On,Lower Partial1 On
D
H
D
H
D
H
D
H
0
00H
32
20H
64
40H
96
60H
1
01H
33
21H
65
41H
97
61H
2
02H
34
22H
66
42H
98
62H
3
03H
35
23H
67
43H
99
63H
4
04H
36
24H
68
44H
100
64H
5
05H
37
25H
69
45H
101
65H
6
06H
38
26H
70
46H
102
66H
7
07H
39
27H
71
47H
103
67H
8
08H
40
28H
72
48H
104
68H
9
09H
41
29H
73
49H
105
69H
10
0AH
42
2AH
74
4AH
106
6AH
11
0BH
43
2BH
75
4BH
107
6BH
12
0CH
44
2CH
76
4CH
108
6CH
13
0DH
45
2DH
77
4DH
109
6DH
14
0EH
46
2EH
78
4EH
110
6EH
15
0FH
47
2FH
79
4FH
111
6FH
16
10H
48
30H
80
50H
112
70H
17
11H
49
31H
81
51H
113
71H
18
12H
50
32H
82
52H
114
72H
19
13H
51
33H
83
53H
115
73H
20
14H
52
34H
84
54H
116
74H
21
15H
53
35H
85
55H
117
75H
22
16H
54
36H
86
56H
118
76H
23
17H
55
37H
87
57H
119
77H
24
18H
56
38H
88
58H
120
78H
25
19H
57
39H
89
59H
121
79H
26
1AH
58
3AH
90
5AH
122
7AH
27
1BH
59
3BH
91
5BH
123
7BH
28
1CH
60
3CH
92
5CH
124
7CH
29
1DH
61
3DH
93
5DH
125
7DH
30
1EH
62
3EH
94
5EH
126
7EH
31
1FH
63
3FH
95
5FH
127
7FH
D
H
D
H
D
H
D
H
vc1_e.book 147 ページ 2004年4月2日 金曜日 午後3時21分
Summary of Contents for V-Card VC-1
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