IBM 5410 Maintenance Manual page 9

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Op Code
(one byte)
Bits
Bits 4- 7
0-3
0
1
2
3
4
5
Legend
OP BITS 0, 1, 2, 3
•
X Two address instructions (can •
Y
One address instruction (can
be indexed by bits 0-3)
be
indexed by bits 0 and 1)
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Operands
Total
Type
Code
Instr
One
First Second
Length
Byte
2 Bytes Direct 6
x
2 Bytes
1 Byte Disp
5
x
Index by XR1
Direct 5
x
4
y
1 Byte 2 Bytes Direct 5
x
Displacement
1 Byte Disp
4
x
Index by XR1
Indexed
1 Byte Disp
4
x
Index by XR2
By XR1 3 I
y
1 Byte 2 Bytes Direct
I
5
I
x
1 Byte Disp
I
4
I
x
Index by XR1
- - -
Indexed
II
1 Byte Disp
4 I
x
Index by XR2
By XR2 3
y
2 Bytes Direct
4
z
- - -
1 Byte Disp
I
3
I
z
Index by XR1
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3
z
-
3 I
F
Z One address instruction (can
be indexed by bits 2 and 3)
If [ii' ::1
F Command instruction
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