IBM 5410 Maintenance Manual page 12

Processing unit
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Op
OCode
Control Code
Code
DA
M
N
0
7 8
11 12 13
15 16
Cl
Direct Addressing - Operand 1
=
2 bytes
01
Indexed by XR-1 - Operand 1
=
1 byte
El
Indexed
by SFf2-.::.
Operand
1
=
1 byte
0011
Device address SIOC (3)
0
Must be zero
000
Test for SIOC not ready
010
Test for SIOC busy
Note: All other N codes invalid.
xx xx
xx xx
Branch to address if condition is met.
D 1 and E 1 are indexed.
1000
Device address BSCA (8)
0
Must be zero
000
Not ready
I
Unit check
001
Op end interrupt
010
Busy
BSCA
011
ITB interrupt
100
Interrupt pending
101
Invalid
110
New data
111
Invalid
xx xx
xx xx
Branch to address if condition is met.
D 1 and E 1 are indexed.
0101
Device address 1442 (5)
0
Must be zero
000
Test for 1442 not ready
1442
010
Test for 1442 busy
Note: All other N codes invalid.
xx xx
xxxx
Branch to address if condition is met.
D 1 and E 1 are indexed.
Figure 1-5. (Part 2 of 2) Test 1/0 and Branch (TIO) Instruction
1-6 (1/71)

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