|Address register. Displays a current memory address of the content that can be changed (is analogous to the status of the address bus). During program execution displays the contents of the Instruction Pointer IP.|
|display the status of the Data Input register DI in the ‘DI view’ mode (the DI LED lights up). If the DI is off, DI0 - DI7 show the status of a memory cell addressed by AD0 - AD7.|
|display the status of the Data Output register DO. Used to display the calculation results. In the ‘Debug’ mode DO0 - DO7 can display the contents of the Accumulator. (In this case, the ACC LED is turned on).|
|indicates that the device is executing a program. Lights up after pressing the RUN/STOP key.|
|indicates that DO0 - DO7 LEDs are in the Accumulator status mode. It’s used only in the ‘Debug’ mode when the DO/A/<-- key is pressed.|
|indicates that DI0 – DI7 LEDs are displaying the status of the DI register. The DI is usually used for data input.|
lights up red when the ‘HALT’ instruction is executed. HALT temporarily pauses the program execution until the ENTER key is pressed. (Since the computer is in the program execution process, the RUN is also on).
Lights up yellow when the INKBD instruction is executed.
|lights up when the machine is in the ‘Debug’ mode.|
|lights up if the machine is in the Binary Data Input mode.|
DOWNLOAD THE MANUAL
You can download the guide in different formats from the links below:PDF A4
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