Rotary Switches A Through - IBM System/370 145 Operating Procedures Manual

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ROTARY SWITCHES A THROUGH H
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STORE/DISPLAY ADDRESS
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SWITCHES LABEL FUNCTION
DATA
Specifies the value of data to be entered on manual store operations.
AB
CF ADDRESS Specifies the track/sector address of the console file on certain
diagnostic microprogram load operations.
CD
CONSOLE FILE Provides a service function described in the maintenance documentation.
BYTE COUNT
CDEFGH
MAIN STORAGE
Specifies the main storage address for manual store/display operations
ADDRESS and for address compare switch functions.
EFGH
CONTROL STORAGE Used by service personnel to specify a control storage address for
ADDRESS manual store/display and address compare functions.
FG
WORD ADDRESS Used to display General-Purpose and Floating-Point Registers.
FGH
LOAD UNIT
Specifies the load-unit address for Initial Program Load (JpL) operations.
ADDRESS
FGH
STORE DISPLAY Used to store/display local storage.
ADDRESS
H
BYTE/X-LATE REGS Specifies the byte to be altered during manual store operations.
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