Xerox 900 series Technical Manual page 25

20
MONARCH I/O SUBROUTINE LOADER 22
LEGEND
I
UAT • Unit .... ignment Table
UAC
=
Unit
~
Code
initialize eulnutlne para ........ , .. -
tract
1/0
function swltchea & Initial
load relocation
bioi',..
IOlElC
Al~------------~
No
UAC .. code for mag. tape?
No
UAC .. code for card read/punch?
Insert
origin of RAD file IRallap ... nt
routine Into UAT entry carresponcflng
to
current I/O function
Set I/O functIon pointer to next I/O
function swItch
Set UAT
add,..
poInter to UAT entry
corretponcftng to neIlt I/O functIon
laIt 1,10 functIon .wItch exGIRlned?
Extnlct unit
add,.. code
(UAC) from
UAT entry
c~tng
to current
I/O function
Prl nter
1,10
eut:nutlne
loaded
~t?
No
Store current 1_ relocation bl __
printer tubroutl". art,in
No
Store current load relocation bl __
mag. tape subroutine origin
Na
Store current load relocation blaa _
origIn' 01 paper-tape/t)'pewrlter I/O
IUblOUtlne
InMrt
printer ...... tl". origin
Into UAT entry correepondlng to
current I/O function
....... orI,1n t:J ..... .......... -
I". Into \JAT entry corretpOndlng
current
I/O
function
nMrt
origin 01 card I/O IUbrou-
lne Into UAT entry correlpOftdlng
current I/O function
nMrt origin 01 paper-tape/type-
Iter
I/O
subroutine Into UAT
try carr-.ondlnsl to current
/0
function