Browse Prior Art Database

Indicator Oriented Processor Operator Interface

IP.com Disclosure Number: IPCOM000077149D
Original Publication Date: 1972-Jun-01
Included in the Prior Art Database: 2005-Feb-24
Document File: 2 page(s) / 61K

Publishing Venue

IBM

Related People

Dougherty, ED: AUTHOR [+3]

Abstract

In data-processing systems which do not include a console typewriter for operator data input, it is normally required to enter all operator responses through console switches. The large number of switch manipulations introduces a high probability of error and takes a considerable amount of time.

This text was extracted from a PDF file.
At least one non-text object (such as an image or picture) has been suppressed.
This is the abbreviated version, containing approximately 84% of the total text.

Page 1 of 2

Indicator Oriented Processor Operator Interface

In data-processing systems which do not include a console typewriter for operator data input, it is normally required to enter all operator responses through console switches. The large number of switch manipulations introduces a high probability of error and takes a considerable amount of time.

The method outlined in the diagram greatly reduces the required switch manipulations by the operator and places the operator/system communication under program control.

To make use of the method shown above a problem program and to supply an operator message for interrogation and response, the following coding must be inserted in the problem program: DC x'0300' displays/respond op code DC x'0001' message for operator DC x'0000' save area for operator response

After the routine is entered by START, the macro op code is fetched. The op code is "0300' displays/respond. After checking for op code validity, and register- to-register operation, the format is verified and the operator message half-word is fetched.

The microprogram displays the half-word message 0001 for the operator in the indicator lights and sets an operator alert indicator and then enters a delay waiting for operator response.

To respond the operator performs the following manipulations:

1) Set the data switches to the half-word of data which will be used for a response;

2) Depress the interrupt switch.

Upon detecting the interrupt key depression, the microprogr...