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Display Source Panel

Buttons in this panel allow to select the source for the DATA 12-lamps Display in the Data and Execution Control panel. Only one source is selected at the time, which is indicated in the lamp mounted in the corresponding button.

Button M selects "Memory". When selected, the DATA display shows memory content. The next eight buttons select registers: A, B, C, D, IX, SP, PC and S respectively to be shown in the DATA display. The CH button selects Channel.

During normal program execution, the Operator can operate these buttons to read memory, registers or channel content dynamically.