IBM 2025 Maintenance Manual page 50

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REPLACEMENT BITS FOR THE MO-REGISTER
2
3 4 5 6 7 8
REPLACEMENT BITS FOR THE M1-REGISTER
9
10
11 12 13 14
WORD
TYPE
15
BITS 2 THRU 7 OF THIS CONTROL WORD CONTAIN
THE VALUES THAT ARE GATED TO BITS 2 THRU 7 OF
THE MO-REGISTER WHEN THIS WORD IS EXECUTED
BITS 8 THRU 14 CONTAIN THE VALUES THAT ARE GATED 0
WHEN THIS WORD IS GATED INTO THE CONTROL
REGISTER, BIT 5 OF THE CONTROL REGISTER IS
FORCED TO A 1. THE REPLACEMENT VALUE FOR
THE MO-REGISTER BIT 5 POSITION IS GATED FROM
THE STORAGE DATA BUS BIT 5 POSITION.
TO BITS 0 THRU 6 OF THE M1-REGISTER WHEN THIS WORD
IS EXECUTED
WHEN THIS WORD IS EXECUTED, THE ADDRESS OF THE NEXT
SEQUENTIAL CONTROL WORD IS STORED IN THE I-REGISTER
OF LOCAL STORAGE ZONE 4.