Author: Eugene J. M. Lynch, Xerox Corporation, Rochester, NY

Operating System: OS/8 VS3, V3D Source Language: PAL-8/FOR-

TRAN II Special Hardware Required: Printer Keywords: System Man-

agement - OS/8

Abstract: SYSTEM HANDLER, Memory Required: 12K, 7600 page in

field 2.

This program is a set of OS/8 handlers for an RX01 Floppy Disk Drive,

including a system handler. It stores data on diskettes in "byte", or 8-bit

mode, thus increasing the number of blocks which may be stored on a disk

from 494 to 666, a 40% increase for the system disk, and 35% for data

disks. It is a two page handler, and thus requires 12K memory, although a

ROM version for 8K is possible. Loading instructions, bootstraps, patches

to RESORC and PIP, and a detailed description of operation are given.

NON-SYSTEM HANDLER: Memory required: 2 Pages.

This program is a set of OS/8 non-system handlers for an RX01 Floppy

Disk Drive. It stores data on diskettes in "byte", or 8-bit mode, thus

increasing the number of blocks which may be stored on a disk from 494

to 666, a 35% increase for data disks. It is a two page handler. Loading

instructions, patches to RESORC and PIP, and a detailed description of

operation are given.

ROM SYSTEM HANDLER: Memory Required: 1 Page plus ROM.

This program is a set of OS/8 handlers for an RX01 Floppy Disk Drive,

including a system handler. It stores data on diskettes in "byte", or 8-bit

mode, thus increasing the number of blocks which may be stored on a disk

from 494 to 666, a 40% increase for the system disk, and 35% for data

disks. It is a one page handler, and will run in the minimum (8K)

configuration on any PDP-8, but requires a 256 (400 octal) word

ROM to be installed in Field 7. Loading instructions, bootstrap, patches to

RESORC and PIP, and a detailed description of operation are given.

Hardware Requirements: 256 word ROM in locations 77400-77777.

Note: Listing is contained in manual.

Media Service Charge Code: Manual (EC), Floppy Diskette (KA)

Format: OS/8

Catalog: June 1985