Xerox 900 series User Manual

METHOD:
(cont .)
SUMMARY OF
OPERATIONS:
CORE:
X7777
UAT
(11 )
Unit Assignment Table
BAT
(11 )
Business Assignment Table
BRU
DUMP (1)
Li nkage to Memory Dump
BRU
TYPSM (1)
Linkage to Symbol Tbl.Dump
CAT
(11 )
RAD EOM/SKS Table
RAD BOOTSTRAP
(19)
Bootstrap MONARCH
FILE POINTERS
(12)
File Management Pointers
RAD PACKAGE
(389)
RAD File Mgt.Package
BUFFERS
(192)
RAD I/O Buffers (3)
META-SYMBOL
RESIDENT
(103)
Overlay Loader
QBOOT (1 )
Li nkage to Bootstra p
BRU QBOOT (1)
o
ERASABLE
(1)
RAD storage allocation is based on the concept of two concurrently active fi les.
When
the system is generated, these are S (the System File) and D (the Direc-
tory). After the system is generated, Sand D are closed, and the remaining
storage
is used for the Xl and X2 files. Since X2 and BO (BI) are not simul-
taneouslyactive, they both share the same file; X2 is defined as beginning
immediately
after the BO fi I e.
Rewind
Calling sequence: BRM
00
*QSYS
FDT
Rewind and open file whose number is specified in the fourth word of the file
descripti
on tab'1 e. Words two and three are ignored.
Open
Calling sequence: BRM
01
*QSYS
FDT
Open the file whose number is specified in the fourth word of the file descrip-
tion table. Words two and three are ignored. "Open" corresponds to an
61

Xerox 900 series Specifications

General

Brand	Xerox
Model	900 series
Category	Copier
Language	English