Digital PDFs

130-101-037-00

June 1972

9 pages

Original

5.4MB

Document:	RSX-11D System Lists
Order Number:	130-101-037-00
Revision:	0
Pages:	9
Original Filename:	http://bitsavers.org/pdf/dec/pdp11/rsx11d/RSX11D_Spec_Jun72/130-101-037-00_SysLists_197206.pdf

OCR Text

·---~-------=
TOI

· Rsx~i10

f"ROMI

~ " o·ATE'
· su~JI

D(strlb~tlon

KP'e,JcJ

19 Jun 7 2
SY~TEM

LISTS

The material Included

Tn thl~ fu~ctto~~I

specfflcatfcn, tncl'u~lng byt not lf'nlted
to, ll"'str11ctlon tl~es an,j
O"le"ating
s p e e d s, J s f a r ; n f o r r:i ~ t l o n o u ,. ? o s (' s o ti I y •
A I I 'ii.I c n m~to r I a I l s s u o·j e ct
to ch~ n q '3
. w(thl')ut not fee, · ConceolJentf y Ot:C m~Kcs
"O cfaTrn ano Sf'laf! n".lt oe !l&ole for fts

· accuracy·,
ll n re s s s o e c I f I a ~ ·o t n e r w1 s e ,
t n~
t a r "' s
'' RSX" an d " Hs X- 11 " I r. p I y '' q Sx • 11 IJ '' ,

The virtual address sp~ce 12~irJ~157777 CASR~ ~,5,~) for t~e
exacytfve (kernel mode>, ano for PrlvJ jPy~: r~sks <usgr

"morte), ls ~aopeo '"to ~-n ar~a ~f rear 'l'\eMQpty c0ntaJnl"'l'1
( 1_ )
a S y s t e m Co mm'J Ii I o rJ. t. l o n s a , e a , c a I I e d ~ Cri ~1 , c 2 ' t. ~ ".'? s J '} ~ ~ ::: ' s
t a b I e s G I f s t s , a n ~ ( :-5 > ~ s e t . o f s ~ o,, o u t I n e s , c ~ I I i:. d ' '! 5 t P. :r.
Suhr out f ~ c .5 ,
th :rt rn an J p 'J I Cl t e ~ y 'it c rr. L I st s a"' d :) ,. o" J ~ e o th~ r

system level fun~tfons,
Tahles & Lists,
PSX .. 11'1 us~s

I inkerl

mafntaf n sy~te~

This Spac

I Jsts,

arid

desc,lhes

ffxe1

len'1t~

the

~yste~'s

t~bles,

rnform~tlon,

The f 1x e d I en~ t n t :'\ b ·r ~ s 3 r 'l l I st s w1th e I e.,, on t:; t n at
res l ~ e
Tn
e o ri s '3 cut T v e
:n I!? mo r y I o cat I t" ri s ,
Th I s f r:i r '7' i:i t f s u; e.; -' r. ~ n
l I s t s a r e s t a t l c 4 1.1 h e ti I J s t s c ~ n t l me ' s c r i t I -: ri I , o r "1 CJ +: i'1 ·,

I Jnkad rJsts are I fnKea as ~ouble Ended ~ueues, a~j ~re
ca I I Gd Dr QUE S ( c ~on ounce~ ~ e cK~ >', ~\ n µ SX• 11 D ,. : no u ~ co,.. 3 i r, ts
of a.1 fstnead A.nd I 1st ela~ants, or no~es, clrt:u!a~ IY 1 lr"lior,ed
b~
~otn back~ard Rnd forw~rd oolnter~,
The f lrst wnrd ~f a
~ost

~-· ·11'

SYSTEM,L.ISTS

nod o ( (') r 1 f st h ~ad )

the neYt

'or war r1 o o f·n t e ~ , · I • e ·, ,

J s 1\

co,

node

'-!Ord of' · ~ "ode (or

I lsthead)

ITsthead)

th A

a r.rd r o ~ s

The
pof"tPr,

sa~ond

1·?oklnr for~ar~~
back'we.rrl

Is a

1·,a·.,

tne ao1r~ss of tMa n~xt no1a (or IJstnead) jookjng b~ckward.
A l l s t ~ ea d I s
a
1 eg en e r a t e
,., o j e ,
c n n s 1 s t r n ti
of
o ., I y
a
for~arM
and a backw&~o POIMt~r, and ts use~ as a ref~rqnce
··t> o Tn t •
r • e ·, , A I I ~ t h e :;. d I f'! e n t I f l e s a i; e rt lJ a • ~ n d I n d I c ~. ·: ~ s
both th~ begln~lng ~nd ~nd of tne clr~ularjy I l"kq1 llst,
· A I ·1 no rf as cons ( s t of two po I "'t ~rs f o I I owed b ~.i t .n ' r ~a 'l t'l
fJ at a
6

words,

Tr"\ e f o I I ow r n g f s a des er I p ~ I on of .the "'a Jo" . I t st s
RSX•3.1n

used

THE TASK . PARTITION DtREC!ORV
.
~--~~------~~---~---·------The Task.?~rtltf~n DTr~ctor~ (TPD) Ts a tab ID of six wcrd
entries •for each · TusK PartltTon CtJ def(n~d at ~~~tcm
con f l Q 'H·a t f on < s ~ L~n ·,
Ea or.
Pf\ rt I t t on' s
entry t s of t"' e
fQJlo~fn(J

Wd~

form;ttl

wer, 0 j_

Wd,

name Cffrst h~lf),
p 3. rt r t I 0 n l"I;, me 's P. cf) n d ~a I f , '
1/6dt~ 8a~e adoress of ~ar;,t!on,

~-Partition

·r:
~-

w11, 03 !"'• llo4th PartJtlon size In hyte!J,
Wrle ~4 ••Hole Pofnt.ar/Occ~nied I~dlcntor,
~,n , kl 5 - • Pa r t I t I o n Ty p e i n d I c a t o r ,

Tng

Partftfo~ na~e c~nstst~

of six

ch~ractars

~a~t~-5~

reorascntatjon,
Mg~o~~ Partition
houndarfe~,
and
~e~or~
32·~orrl

s'aea~
ma~o't

~re restrfctec
to I fq ~n 3?·~~rd
l~cateri anywhere within 124K of real
b~se ! size are recorded
in ter~s ~f

oounos
m1y be

T~af

clocks,

A p a r t 1 t t 0 f'\ t y n e
( ~i I 5 )
ze r 0
r s a .. sy s t e ~ c ~ n t. r f) I T e "' ,.
P a r t l t f o ,., 1
i ·, e ·, • T h ~ sv s t e M wf I r I c a rl a ~ ma ,, y T~. s 1.< ~ s
nosslble
fn
t!o\a
PA.rtltlon,
For
Syste""'
controllP.n
P a r t J t I o ri ~ ,
,-1 ti , 4 I s s:i => o I n t a r < l / 6 4 t h ' e :i ~ a d : r e 3 s l t. " t h e
f l r s t " no I e '' < I f
n~ > w I t n f n t h e p~ r t I t I c n ,
t.: ~ ~ ,., !i o I o i ~ n n
u n lJ s '? d b I o ~ '< o f
n1 e r.-1 o r v 1
a n rl I s a ~ l.J I t I n I ~ 1:J f ~5 (> "'"a r 1 '3 I n
., o rt g t h •
r ~ e il o I 9 s CJ f an 'I > T ,, a s y s t e ., co ,, t r o I I f; c P 2. r -+: i + i ,, n
a r9
c 1· r c u I a r I I 'I I Tn k e d f r o ii\ ~ d , 4 ·, T n e f t I' :, t t wo w o r d s c f

...

·--:·-~---~---

t 1 J A1 " Ta s L< P a r t I t r on''
e xe c y t I o n o f Ta s f< s ·,

l s a n a r e a o f memt'l r y d e '1 I c a t a d ~ o t ~ e

SYSTEM LISTS

ea'>h ht>le

PAGE.

eont~qn 1

(1.)

P~lnt~r

to · tne

hole, or to t~e
the holn's slz~ rn
a M~te of zero

ne~t

~a,titfon's
TPO entry
32"wnrd bjncks~ Wd~ ~4
&lze, and are U.Seo as a I 1sthead for this
TI s.t•,
~d~ ~4,
& ~d; ~5

('r

~n~ (2)
ap~ear as

s1~~1arlY

llnk~d

A .Pu r t I t I o n t yo e
t Y1 1 5 ) o n e l s a " us e r
co n t r o I Te '1 "
pa , t l t ' 0 n •
I '• e ·• ' Th ~
y s t e"' wr I I 0 n I y I 0 e a 0 n e Te, s k ~ t a
time In th~· Part!tlon,
F"or
User Ccntrclled Partltfo_n::,
Wd ·, 4
I s u s e rl a c; a " P a r t I t I o n o c c u o I e d t I ~ g '' .. • z a r " ,

avalfat'leJ non .. zero 1 occuofed,

~--~~---~--~---~~---~-----Th a· G I o b a I Co m,,, o n t') I ~ e c t o r y
. en~rras

. f~r

· CQ n f l g IJ r .e t f o n ,

eacn

GLOBA~.

< GC0 >
~Q~Mn~

1s a t a o I e o f f o tJ r ·~ o r d
8LacK def tned at Sy~t~m

Ea c h e !"\ t r ~· I s o f t ne f o I I o w t "' g f o r ~ a t i

Wd .• 00 - • ~a,,, e o 1 COM~ OM P I o c w < f f r s t h ~ I f ) ,
Wd, i:t. •• Nar,i~ of C'Ji~MQN 81 ock C~r:c"·1d t"la ! f),
116 4 t )i R a s a a d o r e -s s o ' c: •J ~· M ~ N b I o c K ,
Wd I ~2
w·d, 03 ,. • 1 / ~ 4 t h s J z e o f · C0 M~'10 :~ 8 I o c ;< ,

·.Tha COMM~N Block nnme
· , e ri r e s e n·t a t I o n 1

co~sfsts

of ·six

char~c~ers

G I ob a I Cr:> m.., o n A I ') c ~ b o tJ n r1 s mu s t I l e o n
3 2 .. wo r d
and m~y he loacat~d anywhare ~lthfn 124~ of
s p a c e • Th ~ r r b a s e. ~ . s ' z '3 a r e r e c 0 !" d e d I n t e I' ms

Radl~-~~

t> ,, u :i d a r r e s ,
rFal ~e~ory
0f
3 ? - ',/ 0 r a

·:ne!":1ory blocks,

·---~---~--------·~-------·
Th~ Pnyslc~l U"'lt 'ilrectory CPIJD> fs a t::\bfe of
eight Nord
entries
'o~
~ach
phy5fcal unit soeclf l~o ~t SY~tem
. Co ,, f Ty 'l r ~ t I o n ,
C..J '-' e n ~ L ~ <"I I c a I J/ t'l IJ n I t f s
a ~ s i g~ ed
t ,.,
a
ohy s rc a I
1.1 n l t , t ,.-. ~ ei tw s I c a I u n r t 1 s P~ o r e s e n ~ '1 c t h e a rl a r e ~ s
~f tha c~rRsooncfn1 ~UD antry,J Each devlcs-unlt o~try Is ef
tne fol lo~fng fo,rnati

W'f, i{)f'll
wrj t :t \
Wd 1 Z2

we, Z3
_, d '

Wd,

...

·-

(2 ASCII c~~rs),
Unit nurioer & F' I ags byte,
Attrtche~ f i a g 1
redTrectad f I a g,
ATL nooe aa r Of Handler T::1s'<,
·R 9Quests ciuaued Co1.Jr.tAr,
It ,.e~uest dS0 1J9 'or w~ nl , , ,,k'l"'C
. '· '1 . '
unit re·1uast deaue tac~ward If n-<age,
o~vTce

wd 1 i; '~
.... un
wrr, 01
/ / /

l"\!3,~0

PAGE

SYSTEM L.ISTS

Tne bits of the r(ags Oyta a~e userl as f~I !O"'SI
bf t·0 -- s~t wha" ha"dl~r task r~ re~Jdent,
b I t•1 -· set wh~"' a f I I e Is open,
bft .. 5 ... Set ff rtevjce .. unjt JS ff le-f'rie,.,tAQf
blt•6 ••set ff Havlce-u"lt ts rAada~1~,
bft•7 -· set ff ~evlee•u"lt Js ~rlte~ble,

·When the unit fs

ATTAC~e1

to a task,

t~e

Att~ck

rt~g

to · t tH4
T:.:a, s·i< 1 s ST 0 entry a q dress·.
~r r1 en t ~a u n I t
At t ~ c h e d t I') a t a s K , t n f s f I a g 1. s s e t t (J z o r o ·,

s~t

I s not

WhAn 1/0 requasts kave bee~ REDIRE~T~J to another unlt, t~e
Redlre~t Flag Js s~t to tn~ Pun entry a~rlres$ fer tnat unf+.
When 110 1s not R~OIRECTEO, tno Rarl(rect r1~~ Is sot t~e
adrlress of Jts PUC entry 1
THF'-POOL.
~---~-

.. -.

Fmoty norjas for u~e Tn any doQue are Jnftfal fy nrovldad ~Y
the SYSt6~ G~nf lnu~atlon RoutTn~ In the forn ~f a d~oue
c a I I fl d " T ti P. P o o I o f :3. 'V ?. f I a b I e I f s t e I' e H' e n t ~ '' • o r t h e P ~, CL. ·•
Wne n a n o cJ ~ J s ri e a f) e rj t. o a :t p 2 n d e ! t 5 t , r t I s ~ a k 'l 1" f r n rn t ~· e
D o o I ·,
Wh a "' a "·O i a I s l"I o I ~ n g e r n e e C: e o , r t
Is
r e t oJ r n ~ d C? J ·
to the poot,

wn l I e t h a "'.' o ~ t c o m"' o M us a g e o f p o o I n a CJ '1 s 1 s · ,,, J t h I I nk ff d
., I s t s ( n e '' u ~ s > 1 t h o y a r t a Ts 1' u s e c b " t r1 <' 1 y $ t e n t o c r ~ a t c
the d a ta fJ o r t I on '3

...

of '' ~ ys t em Ta s l'- OI r e ~ t o r 'J " e n t r I s ·,
P

"----·------------------.

Th CJ sys t ~ill Ta s '< D I ,. a 0 t t') 'r y ( s TiJ , pr (j v r d '1 s
l n t 0 r :n at ' :) n ah 0 IJ t
ea eh
T a '1 ~
t ,, ;:i 't "' a s o a e n I r •S T ,.\ t. LE ~J
l n t, "l
~- s J' ~ t e :fl ,
Tr-. n.
Tn f · o r ,,, ::\ t i o n r o r; o r d a d I n a T a 5 k t s S i D t: n ~ r 'I
I «j
e I t r. t r <I >
Tn f o r :n ~ t l a "' t. ~ a t
I s r e owJ r e r vi r c n r. n~ . r: a <3 i< i s ,.., ~ t n c +: i •1 c
( v T z ·, , R~ c r I 1/ E De q 'J e I f st n P. ad ) , ~ n,. < 2 > f !"\ 'o ,. rn ~. t I on t '1 ;1_ t, I s

'enulroc
aadr~ss

to
of

!o'~

lmaQa>,

lJ n n a r .R S IJ. • !. 1 ,
sa~rc~ed
for

Tns~

Into meMory <Jlz,,

~1t~out

~n~e,

T a s ~~ s a r ~ r a f e , a n c n d b / " s. .,, e 1 a n rl ~ n 1)
5T 0
~~ lndlc~tec Task ~ame at o~ch r"f~rAMeo.

STn ls strYct~red sucn th~t thls
raofdl~, ·

TAS~

fmposlnQ

~earch
~an
to
na~Tna
cnnve~tro~$,

il~K

fka

o~rf?rft~d
ora~r~ ~f

1'··-~---------[ 2]
?• 1a k G ~ '' a"' c '' , e t y ,. n ~ d " l r:i o I "I c h a ~ Cl t ,, g n ~ o~ o o I n t ~ ,, s a n d
not movjn; oata,

. PAGE

.SYS TE 1'1 L. 1S TS

tnsta·11atfon, or dodfcatJo,, of a large 1"eTiQrY are&,
The

ST~

~onsfsts

ma~fmu~

table

ent~y

oofntgrs

for

nYmbe~ of
1 -ask th~ t

IN~TALLAd t~s~s, an~~ f Jft~an ~oro ert
f o r e a ch
I s tr~ '.l i AL ~ En , H1 e ~t ah I e I s r:i a I ri t a I n fl 1
the
proc:rnms
that
lNSTAL:.L
and PE~OVE Ti.sks sue~ tha·t t
nu~ber of antrfes
~no~n,
2n1 consec~tfve t&~te wor
c:> o T n t
.,t c,
Ta s ~ ~ T iJ en tr f es o r ~er ad " I n ha be t t ca I I y b v Tc

Name·,

. The fou1teGn Aord ~Ibo~ of memory for a STD ~ntry ts t~~
f r nm
t tl e PO nL wIi e ~ a Task I s INST AL t.. e d , a" d r ~tu r.n e ".1 wha r
Ta !l k l s ~ EMovErr,
ThuS1 a

an,..

Tas~

nam~

m~mory

~ay

be found rapf dlY

not · rj&dlcate~

for

(vi~

~ll"l&ry

searc~

STQ ent' l~S · t.J,,tl I

need'lde

..
Each STD el"ltry IS of the to1Tow(ng for~at•
Wd,

Wd -,

w~.

Wtf, 03

Wd,

... rasv namg

--.
-....
,.

(f tr st half),
(second nalf),
partition ( S Pl' ~ntry

na~e

T~Sk

Oef ault
Qef ault Pr ·1orltY
F'la~s Wo r 1 •

rGSf
-- s
...
l 7.e
..... a>< Pool usage,
Wd
Wd, 10 .... pool usage,

Wd·, jd5

1 .z 6

c~
~7

~a)(

d~nt co f'ja

T~s~

~otiress>,

y rnJ s e d t:)yt':! I
C !.

o:ia

l""~'Je),

i'1

-----....

Ta st< RECEIVF: Oaoue 'or·111=1rd I 1.,t<~.~e,
1 1.
Tas~ REl'."E I IJF'. nenue tac l"C '·lard 1 ln~a'Ja,
Wd, 12
13
Of
sk aor of T~Sk f m~ge <tlr~t ri ~~ I f ) ,
wd. '
l4
Disk
au r Of Tas~ f ;,Jge <sec'>nd · ""~il'>•
~W'1'
or st< adl' Of Char:koof nt lm::qe Cffrst ha! f) I
Wd, 15
·w1, 16
ors t. adr Of Cher.kp~f nt trna·;Je (S~CO:"ld ;, a I f)
.., d.

name
'eoresontatl?n•

Th-e

T;tsk

consists

sTx

cnarac-tel'~

ra~J:<·

The def a'-' I t .Pa" t l t To,, f s u~ pr as en t Ad ~ ~1 ~ Po r n t er
Ca cJ '1 r ~:
of
~n
e n i; r y I n t h e " S~' s t e (i'I Pa r t 1 t I ~ n D I r c c t. o r ~· '' , ~ "'

Provld13S the Partition's nnme & def lnl_tl~n,

The b I t.s of the f lnss

~·!

0,. d a,a .J s e
1

a 1t•? -· Set when rask Is a.ctlve,

---BI
......
a
...
OI
BI t-...(, ... Set I TasK
...
~ft-~

t•?

I t•J

Alt•~

t· .. 5

foi lo·.-.rst

Set 1Jhen Task. Is r I X31•' n-,,P.mory,
Set r4h'3:-\ Tiisk I !l c n o c ~~ p !' l n t n. c ,
Sat whe" Task i 'l cfsabl~d,
~et wh~n ta5K l ~ ~a1n1 f I xa·.r-1n .. .,,ani~ry 1

Set I f

Tas'<

Rlt•7

Set

Tasi'(

i ']

,,ot•fl~a~le,

ft1ai'

oe checkt10 I .,tfJo,

m~y

dlsah~e~,

SYSTEM L.!STS
THt
ACTIVE
TAS~ LIST
.
.
~·-~~---~-------~--The Active Task Lf5t (AT~> fs ~ pr_Jr>rftv ord 1H'lo
lf~t
Ta s Its 1
l t cons t "3 ts of a d a Q~ ~ wI t., I I n t"' e i!\ a l ., s 1

· act I v e
a~d

a node of the

fo1·1owln~

for~at

each actJve .t~s~;

fo~

For111a;d
....
0'.... 5Tu ?,j,,rttv,
entry
tor (Task I G) ,
....
0~

Wt.1,
w·~ I

f fnka~e,

!"•

a~c~"~r~

Wd~

11 l"'lkage,
DOii"

& unused hy1;e,
t<un
w.; •
Run Partf tlcn ('TPr') en tr~' ~ o ~tress> ,
Wd. 04
Wd, ~5 -~ 1/64th re:q adCH'3SS of lo~d l,,a1s,

Wl".i I

... Requests
IIO l
Statt's
Coynt,
IIO
---1-16,
-- Task ts
Tas1<

'j '-'·

Pr~-:03~

Co•Jnt,

Pendf ng

Wrl, f:1
WrJ' l ~,
Wd~ 11.
\-1'1. 12

Taskf t;

(V~nt Fla1s
[VAnt F"jags 17 .. 3;?'
F'!aos m:ts~,

-· e:ver.t Fla'JS r1:ask,
13
Wd, 1'1 .. Eve"' t
mask,
15 ... Eve"'t Fla')s mask,
i-fl't-

Evs~t

!9•

F"!a~s

... unused,

~d~

Wd, 16

.· ThTS llst ls orderAd by the orlorlt~ ~' th~ active Tas~s i
f s lJ s e i:J • t o a r I v a t h e s y s t e M ,
T h P. o r d e r r n .,. ~: i c t1 T-:t s '': s i
· consfdero~ Js ~eter~Tn~a by ~~an"ln~ ~h~
If st, an~
.actJon to ba ta~en ts deter~{~ed ~v ~x?mlnlni tn~ T:
StntlJs worri,

~cllowfnr.i

Is a list of

T;sfi st=ltqs V='. luas

their '!'leanfngs,

Task naAdS "'emor't
"'~
...
Telsk LG~D reo1Jest QIJ0 IJFHf
32
04

1 ~1
12

---· Task

·---

T~.sk

I Ortdr:i~ Sl.icr.essful IY
~JCT

SJCCSSSfLJl

Task Ts r 1; n,., I ,, .J

l'Jada·:i

raouest cueued
....
re or ae
IY
ly
--....... T?.S'< '"'a.ltlni:; an Everit r a""1 1·1.6 to
Task waf-:ino for an F.v e,, t
17•".5? to
22
to
24 ... To.s'.< ·.-1aitTnn
Sve!"'lt
o ., t o e s e t
26 ... Task: wa.ltfnq v,. a,1 Evant
30 -·
art n
an Event Flaq
tc
SUSPENDED
T::t.sk

14
16

ia~k
Tas~
T::ts~

RE"."QP(}

r.:
'-J(J T

d SIJCC95SftJI

5Ur.C~SSfUI

f 0,.

2'~

r~cor""e·i

F"l;,1

r~sk

'.oJ

f 0 I'
f
f ~ ,.

:\ l"I

F!a~
Fla~

33,..4~

4 9 ..,

l-~4

s~t

~~t

b?
b

~et

"'O

s~t

THF.: cL.ucK '1U£UE
.~----------~--The Cloe~ ~ueue Js a deoue consf stfni of one nod~ fnr e;
op~ratton
to b~ performed ~t som~ tl~e In ~hn 'u~u~o~
" t T c k s t r I ! 1-Ju ~ '' c ,, u n t I n t h e f I r s t "' o ~ e o f t n ~ c I '·· c l< 'l ·J •

decremented

at each clocl< tfcv. untj I "n,.,at:?

hc;i:C'J~13s

SYSTEM LISTS

Cc~unt Is ze,o>• at whfc~ time the
Tnd1ca~e1
oo~ratf~n
Derfor~ed.
The n6ces are llnked Tn t~e order fn ~hlch t
I Q0m19 d"' e' and a; e 0 f th~ f 0 I l 0 w n g f 0 rm at I

. w, .,

Wd·, 02

... Forward I rnkage,

wcr. ~1 .... Backward I l~Kagg,
~-

node
of
.... STD
ATL.
d n ru
f
t "r,
.
Ticks 04hfnd pravlovs r~a (~l~h oraqr),
Wd, £4
oahlnrl
Clow
wrr,
-unwsao
Wd ·, Z6 ... Raqyest
-;;7 -QIS
operand to
Wd·, !i.l ... CMTj BIS nest address (~ernel vlrty~I> to
set flao,
(TSJ STn
Rdr of
Wd, 11.
wrr, 12 .... CTS1 Pun PrJor)ty unuqec
Wd ·, 13
Pun
CTPO entry adr>,
C
T
s
1
R
a
s
c
.,
e
d
u
T
e
t
r· v
g
o r a ,_
14
wri' .
-·
.....
lntervai <low ortRrl
'ild 15
ad~

w~.

02
Wd ·, Z3

re~yest~r,

no ~

. c:

Tlc~s

l.:I ...

~revfous r~q
tyo~ Tn~Jcator ~
sourc~

C~T1

we~

~ntry

-~
~-

r e ~ •J f=l s

SCh~dulPd

CT~J

Pa~tltfon

l.6

'l 1

< ti J

I"\

... unused,
CT~l

Tas~,

~yte,

r ri P.

Hd,

~at

or~ar),
bYt~,
f I~~,

P9sc~edule

CMTJ •· ~ark Tl~a entry o~ly
LTSJ

Task Schedul Ing

s~t,y

onlY

Th A 'h Q u o s t Ty p e ( t.~ d ·, 4 , cl y t e • er > f s y s e c a s ' o I I o fi ~ '
~

~·

1 ~·
2

~•

M~r~
Tas~

Tl~e r~quest
~cherjuf e rAquest

r a a LJ a $ t

;~ lJ I ! I f I ~ d

Tne rvent r1a~ Ran~e
whfch r~n~e ~f 16

4, Syte-1)
ts USAd
to
fnrlf
Event F!a~s Ts ~~ he ~a• <bi
Jn5t,uctlo") If ~~ Evant Flag 1s to be sqt, T~e · r~nge,
(wd~

defined as fol lo·-'SI

n ~· E~e~t Flaq 1•16
1 ~- Eve~t rlag 17-J2
2 •• Event rlag 33~4~
3 •• Eve~t F'!uq 49"64

Tne RiS

tnstructld~

~ourcij

ooerand Cwd, 5) lnatcat~~ w~e
~- n d Tf s '=> , w., i t h f I a ~ ~~ I t h I n
prevf ous byte~

a n E" e "' t F I a q l s t o b a s f:l t ,

range fndleated

t~e

wo r d s 1 ~ - 1 5 a r e n o t 1J s e d I f

~-··~-----·-~-------~
The J/O ~e~uast Oueuo Is
PnysJcal · tJnft 111rectl'Y
reouest tias beqn

fol lo~f ng format;

Q~Jaued,

t h e ,. e Cl e u s t

f s :1 ~ r k T I -i e ·,

Oeoue

w rt.,

for

the

~ntr~

11 sth~ad
u~lt

Each IIO R9Q~est nnQ~

in
whirr
~,

·sySTEH L. l STS

Wd ',

ro~

Wd·, 01

Wd,
Hd,

... Backward I l nlitaqe,
!9•

For~1ard

I rnkaga,

·~ STu entry arl r of retJuestor,
Request Prff'.1rJty,
04
u,, I t I r.!u r-: b e r & Event F"la~ ~~u,. be r ,
t.oglcal
Wd~
Wrj'1 05
Fune
t I on Code,
IIJ
Wd ·, .0~
Atidress C.v f ,. tu a I > of I/0 Status i.:o,. ~'

~2
~3

Wd, 07
~tj !

~d,

l:t

--...
--...
...

Par~m'3ter

Par::!mP.ter
Par~.rn~ter

#'t'

#2,
#1,

wcr, 12 .... par:lmater #4,

...
Parameter IJ.5'
14 .... ParC',metflr
.....

ii rl ·, 13
Wd ·~

Ji.~.

Wtr, 15
ii d ·• 16

Parameti=?r #7,
Parameter #H,

The Reeelye ~unu~s a'e OeQyes wrth
entrfa3 tor Aacn Task,
Entrfes

If s~hearls
ar~

tn~

or~at~d ~nd r.u~~
~n~
r ~ f?l ~ '~~celvn ~~

( F 1r0 ).... by SE ~J \l or SE ~ 1 \.I AM~ REC 11 EST Dl r ('ct I v es 1
h y -REC(lVE or ~ECEIVE O~ ~XIT Olreetfves, Each
Is of · tne. fol lo'ffl1ig form;:\tl

---c ...

Wd ·,

~?,

Wd,
Wd,

vj 1

lid.

~3
~4

Wd,
Wd, 05
w,..
~: 6
. . ...
Wd, yj 7

W'=' I

'" d ~

11
12
13

Wd·~

For . .1ard If n~arH.t,
i tn;.cage,
Bac!o~arrj
STD entry arl r of SE'·iD f n~
Oa t:J Wero ;pt'

Ta~H< 1

...
... Catt.a '.a!ordrd ·' 3'
~-

Oat~

I,.! 0,. d

o~t~

'. JO

If.~'

:it 4'

Q::l ta 1,10 r o #5.
o~t~ t·! or cJ
Data word #1,
o~t~ ~Jo rd fH3 1
03. t;.i. !,.J 0,, tj ;;9,
;Jat~ ~Ord 1+ 1 z·•
Oat~ i!o ~ d U1.lt
D~t:i i..:ord # 1. 2 ·,

#,.,,

"1 . 14 ...
w.id.

fl rl • 15

Wd, l.6
THF I NTEPr~l 1 P .T

~O~l~c-CT

~·ooc:

~--~·--·~···~---~•-w••-•••

I n t e r r 1.J p t
Cn " r rr a I I y

r o lJ t f n e s a ' e a o a r t

P r I v I I e ~ e r::
T1 3 :
I I G 11 :\ n d I 9 r
Ta s K s > ,
and
t. nt\ r ~ f n r c ,
are n'
necessfar1v al 1..,avs rnP.11".lrY reslr.1erit,
Tnaso s'!rvlce
routJ-,.
~ay

~ er vI ce

resf vP.

exec~1tod

rn 1?4K of real ~o~re.sj
.r,oJe t.Jnde' 1terne 1. ASn,3,

an~wn~r~
~e,."a t

5D~~~,

~nQ ~1

SYSTEM L.tSTS

when o v e r . an Tn t er r tJ pt s e,. v r c e r o tJ t l no f s ''eon n e ctr d •• - t,.,
haid~are
tntarruct, a noda Ts taken from th~ poo1 and s~
as fol lows, an1 tne lntcrruPt's trap PC f s set to
address of the fou,th word (Wa, ~3> Qf the noae~
Wd'! _0Z
Wd·, ic:i1
W'l' ~2
Wd·, Z3

wcr, ~4

Wd,

Wd ·,

·u 5
;J6

Ur.used
·.....

--...
--...
~-

unu~ed

STO entry a ti r

of cor"nect]na t~sk
AS R3 1 • ( S P )'T lri~trvctJon
i n s t r 1J c t J o n >
(second word of
(
p
c
)
+
I
A
s
H
3
,,
Instruct
ton
··~ov
1/6dth hase :l f ·service routtn'3 1 S ad,.
(thJrd word of r·~ov lrist"uctlon)
HMQV

Mnv

sp~-;e

Wd,
~Wd, 10 ~- ••Jm' ErJTRY'' lnst,uetlor.
Wd, 11: ~- (second wor~ Of JMP lnstruotton)
Wd, 1<' ~- Unu5ed
~,,

wrr, 13 ... unv.sed

Wd -, 14
Wd', 15
Wd -~

li>

Un1..1sed

uriused

Unused

The STO entry address Js used to tde~tlfy t~~ conn~c1
so
that ""n e n t n e I "' t e r r u p t i s " ti r s c o ~ n ~ c t e ~ '' a,.. j
connect ~o~e Is retu,n~d - to tne pool, the Task's ioot u~
count can be decre~ented~

Task •