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Remote Printing of VM Files

IP.com Disclosure Number: IPCOM000041702D
Original Publication Date: 1984-Mar-01
Included in the Prior Art Database: 2005-Feb-02
Document File: 1 page(s) / 12K

Publishing Venue

IBM

Related People

Gorga, KJ: AUTHOR [+2]

Abstract

The 327X family of terminals can be emulated and run under microprocessor control, such as, for example, by and with the IBM Personal Computer (PC). It is desirable to be able to print VM/370 files on the PC's hardcopy device in such arrangements although the date formats of the two systems are incompatible. Thus, in order to achieve such printing capability, it is necessary to manipulate the date of the file to be printed, once at the sending end and once at the receiving end. It may also be necessary to manipulate the date in order to accommodate hardware characteristics of the particular terminal being emulated and the width of the date flow path of the controlling microprocessor.

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Remote Printing of VM Files

The 327X family of terminals can be emulated and run under microprocessor control, such as, for example, by and with the IBM Personal Computer (PC). It is desirable to be able to print VM/370 files on the PC's hardcopy device in such arrangements although the date formats of the two systems are incompatible. Thus, in order to achieve such printing capability, it is necessary to manipulate the date of the file to be printed, once at the sending end and once at the receiving end. It may also be necessary to manipulate the date in order to accommodate hardware characteristics of the particular terminal being emulated and the width of the date flow path of the controlling microprocessor. The program at the sending end must determine the file type of the data being sent as "listing" or "other", "listing" files having carriage control characters at the beginning thereof. If the file type is "listing", the sending end program must decode the first character of each record or line for carriage control information, save this value and then blank this position. If the file type is not "listing", the data can be used as is. Once ready to use, as is or as modified, the data is formed into a block to be sent to the microprocessor. A data block consists of a header record to identify the date stream type to the microprocessor followed by twelve lines of date from the VM file. The date block is terminated by a trailer record which follows each set of...