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Basic I/O Unit Instructions
Operands
I: Input Word
Specify the input word allocated to the Input Unit and connect the 8 input sig-
nal lines to the Input Unit as shown in the following diagram.
15
14
13
12
11
10
9
8
7
I
O: Output Word (Selection Signal Outputs)
Specify the output word allocated to the Output Unit and connect the 8 selec-
tion signals to the Output Unit as shown in the following diagram.
15
14
13
12
11
10
9
8
7
O
D: First Register Word
Specifies the leading word address of the 4 words that contain the data from
the 8
8 matrix.
15
14
13
12
11
10
9
8
D
15
14
13
12
11
10
9
8
15
14
13
12
11
10
9
8
D+1
15
14
13
12
11
10
9
8
6
5
4
3
2
1
0
0
1
2
3
Bits 00 to 07 correspond to
4
Input Unit inputs 0 to 7.
5
6
7
6
5
4
3
2
1
0
0
1
2
3
Bits 00 to 07 correspond to
4
Output Unit outputs 0 to 7.
5
6
7
7
6
5
4
3
2
1
0
0
1
2
3
4
5
6
7
7
6
5
4
3
2
1
0
0
1
2
3
4
5
6
7
Section 3-22
Bits 00 to 15 correspond to
matrix elements 0 to 15.
Bits 00 to 15 correspond to
matrix elements 16 to 31.
787
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