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130-101-036-00

June 1972

34 pages

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16MB

Document:	RSX-11D System Directives
Order Number:	130-101-036-00
Revision:	0
Pages:	34
Original Filename:	http://bitsavers.org/pdf/dec/pdp11/rsx11d/RSX11D_Spec_Jun72/130-101-036-00_SysDirectives_197206.pdf

OCR Text

{. . _

COMPANY PRIVATE
[i! Y.H'' '·f · ~ ~BE'lll.J.RN TO RICK ELLINGER
._-~-'-'AUTO. /MEAS. I DIV.
·
-·

,. ,

, •. ,

.• , ..

. ·-

. - - ..

; .

•

. .. .... H •

Rsx .. 110
. SPEC
.

~-·-··---··

·Toi

RSX•11D DJstrlbutlon

ff\OM' H·, t\ I' eJc f
PATE~

1.8 Jun 72

SUFJ°'J i SYSTEM

ooc;

DIRECTIVES

13~·UH•036·~~

The "'at or .1 a ! J 11 c. I u de d Tn th I c; fun ct I on~ I
s p e c l f 1 c a t To n , I n c l'u d I n g b u t n o t I I mI t A d

to,
fnstr~ctlon
ti~es
and
operating
speeds Is f~r lnfo,matJo" purpos~s onlY,
Al I sucn rnaterfa! ts subject to cn:ln".lA
wfthout n6tlce~ · conceQvently DEC m~kes
P'I 0 ' c I a ' ;Tl .a " d s h a I I n 0 t b e r I ~ b I e f ,, r I t s
P. o c u r a c ~ ·,
Unless sreclflea

otherwlse,

tne

t~r~s

; . •• RS X'' an d " RS X.. l 1 " 11'1 p I y '' RS x • l.1 D" ·,

S~stcm

Directives,

Oirectfves, are

l"structlons

t~9-

exec•;tJ v~ to perforrn an Indicated ~per;-1tfon ·,
~I I ,lreetf.,~s .
e. r E' T mP I o ili e n t e rl ti s a ,, " EM T 3 7 7 '' I n s t r u c t I o n , a .., J a p " r ~ m~ t ~ r
'I I s t c e, I I e c! a " D J r e c t I v e Pa r a ,,, e t e r 8 I o ~ I< " n r " r} P t=P' ,

c o n -t: a r n P o
Tn tho OPB, and th~ EMT Instruction f n usnd o~IY ~s a mcJ~s
o f t r a .., p T n <:" to th e e )( e c u t i v e ~,
Th e 8 .. b I t I ., mP. u I a t ~
~· o ~ r ~ n ,, s
e o n t ·a l ,., e rl I n t h e I o '-" o r d e r p o r t I c n o f ?: ~·i. T I n ~ t r u : t t o l"I s a r e
NOT ysed 1n RSX Directive~ fnr
two r~asonsa
(t)
~Y~te~
ornanjzatf~n Is clAaner wnen p~ra~eters Fo~ ~n o~oratl~n ~re
s p e c T f f e d I n o n e p I c>, c e l: t h J s d o e s n o t r' r H c I u ~ e c ., r. c a t I n a -t: I ~ n
0 f
t\ r g u rn e n t
b I0 ck s
v ' a
t ha
np 8 J ' a n d ( 2 ) 8 y lJ s I ,, ~ 0 j'\ I 'Y
A I f l nf o r r.i rl t l o n r. e r t a I n I ri g t o a n

~ SX

IJ 1 r e c t I v e I 5

e:nr 377 1 pr(HJrnms qslnri EMT 0 thru EMT 376
r og r. a ~ s

(w"'i:n

lri~ludPs

w r r t t a n f o , n I I A x T s t I n g s ys t e 'T'I s J e a r) ~ e r 'J n u n ll () r
~ S X v I a t no "i~ on .. H~ X Sys t e ~ Tr a o" ,
Th ' s ;n e ct, a,, f s i. ~ tr ~rs
t:"
a
T<is'< contail"ad . servJc~ routlno wtlen~v9r an ~ ·"~T t:-ther tn"n
P

EMT 377 f.ii A'l<ecutori,
This SfHVlca
s J l'l'I uJ ~1 to
th a o "he,. a 1'\ v I r on mo n t
do'll,ert,

roqtfnP. IS iAlf'ltt"n
to wno. t e v ~ r ~ e ".'l r ~ e

to
Is

SYST~M

. PAGE

Dl~ECTIVES

Dlre-:tf VilS are

f SS1Jed from Tasks oy executJon 'lf an
t:~T 377
wJ th t n e a 11 d r e s s o f C\ DP ~ , o r a DP CJ f t c; a I f , n n

t n s t I' u c t r o n
the top of tha 1~sulnY !askfs stack,ClJ
wnen the ~tack
contains a DPS noTnter (address), th~ ooJntGr ls rA~~~ed
<p6ooed) as tne Dlrettfve Is Proeass~d~
~h~n
the sta~k
co~talns
~
OPB• the DP8 Is left ~n t~e s~ack after t~e
Dl~cctfv~ Is processej,
In either ca~3, the OP~ ' ' nat
a1te,ad wn~n the orrectjve f 9 oroc~sse1,

With tne exceptfon of O(ractlves that cause an lssutng Ta~k
t o EX t .T ; c o n t r o I l s r t) t u r n e d a ~ t ~, P. '" o I' a < I r" s t " u c t T~ "' >
10 ., I 0 w'n g the r MT 3 7 7 ' n st,. u ct ' 0 n' wrt.,
t tie "v ,., c => n,; f ti rt n
corie
and
a "Orrectjve Status woro" set to Indicate
Perf~rmance

or rqJoctlon~
~- ·

Each Task has f ts 6wn nf PeotTve
_v1,.tua.1 location ZAro,

~hen a

.set,

oerf~r~erl, the
O I r a r. t T v e St at us ~~or d

Olfectlve
and t n e

Olrectfy'3 Js

Sta~us

"V"
ls

DS~,

Word, or

its

eo~~Jtlon
co~e
fs
set p" s I t i v (J ·, '·' h ~ n a

reJ~ctad,

the "V" condftl.,ri
eooe
Is
Status ·word ts sat neQatlve

and the ntreotJva
magnftuda Indicates thA rdason for

~!ea.re.of,

where

l~s

raJActlon~

wT t 'i ~an 't D J r e c t I v e I s a n '' Cv e ri t F" I :'\ ~ " wh I c h J s
·
e1cared, or tost~o, as a ·~·result
of tne ~lreetT~~.
S I ic t y ~ f o 'J r d f f f' e r a n t Ev e ri t F T a g s , n u "1 o r. r o d ; r o ,.,
l
t h ru
"4
ma y n e u s e d • T h e f I r s t t n f r t "t .. t wo ( t .. 3 2 > :\ r e 'J n l o 1' e - t o ~ a e h
Task~ and caMnot oa altered
oy other Tasks!
t~e
$eco~d
tnfrt~·~wo Event ~lags are common for A~L Tas~~.
As s o c I ~ t e J

set,

;

a Ofrectlve sets an Event Fla~,
Ts
declare.J,
(l.a,, A stlrrlulus Js
event·~rfven system 9 )

Whonev~r

Slg~lflcant

orovfr:Je::l

for

Eve~t
t~~

Tne first byte of
all
o~,Bs
coritatns
a
Olroctfve
Idontf f lcatfon CoJo <DIC>, that Tndfcatas ~hie~ Jirectlve ts

roTlowlng
Of recftves,

to ba oerformel'.1.
eoresp~nding

. .
.
~-·-..-.--·---~--t1l Tha f lrst ~ord of

ll~t

!JICs

and

t~a

all
OP8s ls a1~ays odd, an1 t~e
a d '1 r e s 9
of
a I I 0 n 8 s I '3 a I ~ :i y s e v o n ·,
Ha n o e , t n a ~ y s t o ,, c :t "
a1ways di fferentfate oat'HJon a O?d and Its a1aress,

PAGE

SYSTEM OIH~CTlVES

1·
'

5
. 7
1t
lr·3

l. 5
17
l?
21

.........

...

!/~

A~ <; I GN L 'J ~

REOUEST
EXE'CUT£
SCHEOUl.,E
RU~I

~Y"JC
INSTA~~

M/\RK TIME

CA'l'CE~

31
33

35
37
41
43

CA~CE~

WAJTrOR ~VENT fL4G(S>
S·J~PE ;\f.\

51
53
61

F:XtTYf

75
. ' 77

81
63
85
87
6?
. 95

1~3

SCHEDULED ~E~UESTS .
MA~K TIMES . ·

REi\D C.VE\IT Fl,.\G

RE~U'1E

·73

REOUEST

CL.r::AR EVO~ T rL.. AG
S ET E VPH F°( AG
DECLA~r ~IGNif TCANT EVE~T

45.

' 63
_}1.

PER TAS~ ~SSl~\~ENT

Q~FUE t/C PER MCR AS3IGNMENT
GET tNFOqMAT104 P~R LU~

. 27

EXIT
GET T P·1t:

GET TASK ?~RAMETERS
SE: "JD

st:': a· A~-: o ~;: Q'JE s T
Rt.:~E I vE

REr.EtVr ~~ EXIT
rq:;A3L.F
F;1H8~t:

t N MS: ~~ 0 RY
'.J ~ r I X

F" 1X

48nHT
OEC~AHE ~OT CHECK?OINT~BLE
11 E~ L, Ari ~ Cd ~ CKP O I 'I T~ 8 L. E
SET SYSTE~ TRAP VECTOR

£;<IT S'(S TE~ TRA?

AODITIO~AL

Tne

~---

n~~UE

DIRECTIVES WILL . SE ADDED

of this sp3c Is a de~crf~tl~n of eac~ of tke
aoove,
The
fol"lowlng
cenvansfons and
are yseo throughout,

re~afnne~

Olractrv'is
as~umptjons

1 lsteQ

Oecfmal radlx Is usaa Tn al I c~S'JS cxce't <1'
hardware addressas ~"d (2) davleo unit n~~~ors~

fRsk and Pattftton names ~ay be uo t~
characters long, and are ~lways f~af c~t~a as
words In Ra11~~5J rJ?resent~tJon,

sf~
tw~

SYSTCM

OtRECTtVES

PAr.E

names are two oha r a c t e r .s lortg, and aro
· Jndlcated
word
In
ASCII
bY
onB
reorese,,tatl Or'\ 1

Oe~Tce

al~ays

Ot'tlo,.,al · ejei!lents a,a enclosed Tn si::Juare brar.ket~
CCJ > ,
an d a v a I ue a f z e r o I n th e s e e a s e s I iTI o I I e s
""one soeclf led" 1

TI.rn e un Tt I n d l o a.tor s a re I on a <1) f i:> r c I o e 1< t t c !< s ,
two <2> for seconds, three (3) for minutes, and
fou~ (4) fo, ~ours~
A uTr o c t ( v e st a t u s o f • 1 "C" Ts r e t v r n e n wh.e ne v a r an
Jnvalfd OlC Is specified,

A OT rect I vo ~tatus of ·.,1;:;1 Js returnerl wnenevP.r an
I "v :i I J d EF' \J I cs d e t e e t e d , An EF' '' I s I ~ v :\ I J j "' h a n
It is (1) outside th~ ran~e 1·64 whan 1n Even~
Flaq MUST oq sonclf fed 1 or (2> ~utsf d9 tne ra~gA
~·64 where ~n Event flag MAY be soeclfl~d),

A Ofrcctf ve ~tatus of .1i2 _ Ts returne1 ~nanevcr a~
fnvalfd LUN <Looleal · ~~It ~u~~e~> Is rletect9d~
Each Ta s K ma i' h a v e a s m3 n y L·U~ • .•, a s ~ e s I r e d ,
bu t
t .., e ·s -n a I' l e s t t. UN J s =1 I wa ~ s o n e <+1. ) ·,
A Dlrectlva

~tatus
t~

·10~

rs retur"e~ w~~ngye' ~~

date c 't ed .., Tt'\ I s norm a I I y or. u r r ~
bP.cau~a a part of a JPS or a OP3 soeclfJed
buffar
Js outsfde t~e address space of t~e lss~l"g Task,

. Inv a I f d a rl d r ass

A DlrectJve Statu~ ~f

~1~4

Ts returne1 whenevAr a"

l"vnl_ld prlorJty Js detected,

A OTroctlve Statu~ cf ~1~5 ls retur"e1
I n v a. I f d t J rn e ~ a r a r.: e t a r T s d e t e c t a d 1

~henev~r

A Dfrqctlve Jtatus of ~11~ rs returned wnenavar
non-ex(stent TasK name Ts detect•1,

A ~lrGctlve

of •111 l~ retur~e~ ~honevAr
r-artf tlon na~e ls detect~d,

of -112 Ts retijr"arl whenever
na~e/unlt f s d~t9~ted,

A DlrActlve Status of -9Y9 ls returned wneneyPr

5~atus

non~e~Jst9nt

A DTractlve

~tatus

non~exlst~t

Jevlc9

dlrocttve

,oJ~cted
ta~en

(~ode> c~nnot
be
oec~u~e
the Pool

Tas~'s

Poot

~nage

becayse

I 1st

e1~rnant

Pool <alt~~~
Is amoty, or because tne lssurn~
q~ota nas peen e~ceeded),
f,o~

t~~

SYST'EM DtRe:CTIVES

TH£
'' QUEUE I I 0 '', D
i ri EC. Tt VE~
.
.

e··~~--~~--~---~~---~·----

These Of rectlves JMstruct the sy3tem to ~lace ~n t/0 reouest
for an I n d Tc ate d de v f c e ln a Que tJ e of or I or I t .Y order ~a
requests for th~t devfca~unlt,
The I/O oevlc?.•unft l~
speclf Jed
as
a ~oglcal Un ft NU.:nh.er <Lt!,\j) 1 which Is ,.,a,,oad
lnto a phys(cal unlt per ~UN assfgnment,

Each Task

f ;s

own set of LJ~ assignments ~hlc~ are
a! I · other Tesk's, and tt ls tr.fs ~at ~f
I s no r :-:i a I I y u s e ct w"' a ,., Q L! e i. e J n ;i a,., 11 O
ro1uest 1
How~v~r,
~here
ls a · ~Jass nf 110 tha~ Is t~ ~e
d Ir eotQd t'1 a onys l ca I un It cart the ass I cin..,,ant;:; of
th~
w:-R
0 t spat c n Ta s K I
( "T l. ' '
Mc R F!Jn ct f 0 n Ta~ I< l/ G, ya,, d I er Ta; I~
e r r o·r rn e s s a g as ,
~ n rl
Us a "
T~ s k c ~ nr' u n I ea t I '-l n 'AI I t h
t ~e
o ~ o r n t ~ r ', )
A
9 I , e c t f v 9 · I d a n t r f f c '3. t I o ,., r o ,1 e < ri I C' ) ~ ' " J .,_ ''
Tndtoates
a
Cn~r,.,,an
JUE\J~
I/O
Pf.~
TASK
~SSI!.\J'IE~ T
0 I " t c t ' ve
~ nd
a :.1 I c 0 , " ~ 3 " f ri d r c a t 2 s a QLI t: 'J e: . I I 0 ? ER M~ R
~as

ln~eoe,,dent

of
a s s f g n"" e n t s t h <\ t

A~StGNVE~T

OJre~tf ye~

Th e aUEU E -·~1-0 DP~ s ~ T f f e r n nT:,i I n t h e l'J I C, an a
f o ·1 I ow Ing- 'o,. ma~ I
~t1',

.Wd, , ~1 ""'

wrr, ~l 2 -·

Wd,

~13

Wd I

~4
~5

: Wd ·,
I

w~, ,;-;,.,

wd,- J7

;re1 ·, 1 lf1

Wd·,

.,)6

"'"•

w~.

---·

~re

D?C ( 111 Oft ~3) & CE:F'NJ,
110 Fynctf on corf a,
l. lJ N & ~r:o~dltT\JnsJ,
( Ad:H ess

---- r
....-- r

'=> f

I/O Status ~~I 0 rd) 1

P~r~riet~r
Pnrariflt~r

~2,

n ~ t P. r

#3,

P::t

;,( 1.

Par~~at1?r

...--

# '1 I
P::tr Rme te r #5,
P a a .11 a t e r ;;~.
Par~m9ter

#7,

ParamtJt~r

ti 8 '

Byte ze,.o c<"ntafns a LO".'.'lcal Unit •1.1rr,,ar

Hd·, µ2

tndfc?tfng

1evlca•unlt

~hfcn

raiue~t

auAU3 ls

recolve a"' entry,

Ryte one contain~ t·he fol 1~wln'1
addltfona.t conoltfonal queufn~ lrifor:~~ttoni
RI t - 0
~ u e u a o n I y l f r 3 Qu e s t q 1,1 ~ 11 e I c:; e ., c t y ,
RJt-1 •• Jualla only lf devfce Is unATT.\CHS:r"_\ 1
RI t • 2 .. .. Q '.J e ue ·on I 'I r f no f I I e ~ a r P. ope"',
·Wd, J3· -- a

stat~s

(Axce~t

zero
Is

s~ttfng

fn
t~

t~ Is I ocat I en
r nd I cat cs
be returnad by the H3ndier

t"'la~
T~s\

of a~ lndl:~ted ~v~nt Fldi .at
o om o I I) t To" of s a r v I c e ) '1 A non· z ~ r ~ v a I u C? I n t ;, I "
toact(on Js taken as ~s an addres~ Cvlrtu~I > ~f ~
wor~ fn ~htcn to retu'n i/O Status,

t ~e

SYSTEM OtRECTIVES

If the

Ofr~ctJve

Is oerformed, the Event rla~ CJf soecJfled>

oteared 1 · th~
I/o S~atus ~o~d (ff snoclf led> Js z~r~erl,
Condltlon Code "V" Is se!, al"\d th~ Ofrt'!ctlve ;;;tatus ~Joru
is

.·set positive

<•1>,

set

The Event r1a~ and I/O Status Word (wh~n sneef fJe~)
comPl'tlon b~ tho H1nrl1ar task,

ar9

I f t h e D Tr e c· t I v e I s r e J e o t o d •
and the OJrectfvA $tf\t~s /lord

c I P. a ~ e 1 ,

.tip~n

c o ri d f t To n : o Me " 'I ''
Js

~gt

to one of

t~e

fC'l lowf P"lg

neaatf ve values to lndf cRta reJectton ~nd the reasonJ

... Invalld ore,
•1'a ·- Invalld EF" N,
•102 ... Inval Jo l..
....
... lnval ld address,
•10~

l' ~" ,

-1~~

Unnvaf lable I ls t ele:nent,

• 999

When· an {/0 ranuest ls s~tlsf Jed, the lnrlJeate~ Event ~l~g
ls $et, ~nd ff a Status Retu'n ~orrl wa~ s~actf !ed, It ts s~t
to
t n d 1·c a t e th e · s t at u s o f th c
11 o
o P e r a t. I ~ n
J. f t P. r
co'" p ·1et. I on , , Han ti I er T;\ s 1< s for co mm on ~er t ~he i J a I s· ad,, 9 r ~ to
t h e f o f I ~ wLttT'. S t a t 'J s .,J () r d f o , ma t c o n v e n t I o ~ s I
•10
•11

"12

•

......
...

•

I•

.99 ••
N0 T E - - T " ~ r e ' s n 0 ., ~ Al T" a. s s 0 c r '3. t e d w I t i l
t h rs
~ ' r e r t Tv a '
an EveMt Fr aq ca,., h.e set y~on t/O co:np I et I ~n, and r\ . Tasx 1-:iiy
test or ~altfor th~ Event Flag,

A "Syste~

Tra~"

wj I I occ~r

at t/O completfon, If the

Ta~k

soluo to service tt 1
T~e ~echanfcs

of p,ss1ng reo~ests to I/C
descr.lbej 1n ~tner soaes,

4andler

Ta~~s

Js .

PAGE

SYSTEM DIRECTIVES

~---------·-------·---------~-----~~--·
·Thls Olrectfva lnstructs the system to return L~for~atlon
about th a · on vs r c ;\ I un J t to wn l c,, a,, I "d I ca t. ~ d L ~ \J .J s
ass t g n ad',
A DP 8 o f the f o I I ow I n g f o P ,no t I 9_ q s e d I
Wd~ "~· -· 01c ens> ~ L.v~ •.
Wd ·, &11 " .. • Ad d r a s s o f' t ;1 , e A wo r d o t.! f f e r ·,

If the Dlrectlve

Ts oe,formed, the lnjfc~tAd three•woro
l s f l I I e d (\ s f 0 I I 0 \,,: s I c 0 n d l t r 0 , c0 1 e ·~ v•t I 'i s e t ' ;l,,, d
tho O(rectfve Status ~~rd fs set cosltlye (+1) 1

buf f er

Buffer · forl!lat1

wd -•.. ~ QI - - De v ' c e n a in 3 ( t w0 .Asc r.~ ~ h a r 5\ c t tl r s ) I
~d 1 01 ••Unit nu~ber & Unusarl nyta,
~d, ~2 -~unit characte,lstfcs ln1lcato,,

If the ~UN ts "ot assfqned to a PhYSfcal
· nam e

~o~ds

( " .; • O0 ) 1 s r e t u r n e d
are not a1~$red,

ze r oeo1

Unit, t~e ~evfcs
a~ d t n e f o ;" I o w I "' g two

• lhB.blts QJ · the untt ~haracter1stfcs

~o~d .

lre

defJned

as -

follo~s;

Bf t-t;C
at t··i 1

Ts r9arlahla,
-· Unit
writeable,
unit

' 3 attachable,
art .. ~?. ..,. unit Ts

Ts f f In oriented,
.
to
6lt·04 -- unit
I eteo
~ J t-J -3

. .'

be CJ"'::>

l~of cate

reJectJ~n

Unit

• '

1 f t h e Dr r ·e. c t I v e I s r e J e c t e d 1 co n a f t t o .., C' ~ 1 e 0 'I '' I s c I n <-l r t ~ ,
an '1 t n e ri i r e c t r v P. r; t ~ tu s ~ ~ r d ' s s c t t {\ 0 n e 0 f t h e f C' t I 0 •., I ,, g

neqatfve vaj4ed to
·1~~

·~

lnvalTd DIC,

•1"1:? •• I nva If d
·1~~

••

l~valfd

L..Ll1~ 1

address~

~nrt

th~

reason:

SYSTEM OlRtCTlVES
TH€
. . ". ASS I G\! (.. U. ~!'' DI RE. CT I V E
~--~~--~~--~~----~---~---·-

Thls Of rectf vo Instructs the syste~ to assign an lnuf Cqted
Umf t Numbe~ to an fndfcated phvsfcal un!t, A opq of
tne fol to·,..fng format Is qsea'

~oglcal

wd , iJ ~ . .. .. . oP a < " 7 > . ~ l, u~· ,
frol

d , ~, i · • .. Da v l c ~ "" a~ e ( t w~ A SC I I o h ~ r a c t a ., s > 1

Wd~

Unit

~umoer·

& Unuse~ 8~te~

J f th o D1r A c t i v e I ~ o e r f o r ,., e d , Co n d ( t I o n c~ d e

and the OlrectJve ~tntys

~ord

" v''
Is set PQsltfve (+1>,

se t ,

,. e J e c t e d 1 c o n d f fT~· ,, c o rl e '' v " i s c I ·~ .1 r e rt ,
t;,e 0ff'ectfva $tatqs ~~rd fs sPt to one ~f ti°"~ f~i 10 1.11/Jng
.. nef)~tfve v~lues to Jridfca.te reJectJon and th~ reflson~

.I f th e o' r r e c t I v e I '.S

~ -· and

·• 1 0 ~.1 • • I n v a I J d Dt C ,
• 1 iO ~· • - . I M v =l I f tj I.. 'J 1\i '
·U~·1

•112

addre~s,
·~Non111a')(lstent devlce/urlt,

- ·.•

lr"vt\lld

''5'- YSTE:. M 0 I REC T l VE S

~-~-~----------~~--~~-Thls Olrectlve lnstrycts tiie syste,,, to piake '
Task
aetlve·,
T,ri~To cause lts ~xecutlon co~tfn1e~t u'o~ orforfty a~d
rr. e ~ o r. y
· ~e~c~y

a v n J I a o I I Tt ~' ,

roslaent, It Ts

I •s• ,
loa~ed

1f a RC~ uEsT a (j Ta s k
as soon as sµff lcient

I ~ n~ t
so~cA

thn Tn'11catad PartTtTori Jecomas ~valra~1e,
~
PrJorJGv a"o
, Par~Jtfon ~ay bo s~ecffJ~d~
lf a prf~rlty fs ~ot sp~offTed,
;· the Task "" 1 I I run -it the 0 e fa u I t Pr for I t v s pc c I f 1e ~ w;H~ n the
Task was INSTAL~?d; · If a CArtltlo" ls not soecJf le~, t~e
Tac;k t1I Ir l'Un fn tn~ Oefault Partftion
SOAClffed
wna,.,
t~a
Task WRS 1NSTALL~d~ A CP8 of the fptlowf ng rorm3t Is useda
~d,

~d 1

•• D?C (11) & CPrlorftyJ,

-- T~s~ naMe (ff,st half>,
J2 ··Task na~a (seco~d nalf),
Wd, ~3 -- C0 artftfon ~ame Cflrst ~alf,J1
~~~ a4 •• CPa,tlt!on na~e <~acond najf)),

W~,

1 f t h e D l r A c t I v a I r, D a r f 0 r ,., a d I c0 n ci r t I (' n ct') d e " v,,
a d t no . 'i J_r~c t J ve Sta t us -" o r d I s s e t o o s I t J v 13 C+ 1 > ,

set '

I f t n e 0 1 r (' c t I v e r s ~ tl J e c t e d I c0 n d ' t T0 ,,.,, ~ 0 rl e ,, 'I" I s c I 9 a r e ~ •
a n1 t h A fJ I r e c t I v e St a t LJ s .,. o r d J s s a t t ~ o ,, n o f t h e . f o I I o '! I ~ g
n ag a t f v e , v ~ I i.• e s t o I ri a t c :i t e r e J e c t 1 o n a n d t h e ,. e ~ s o n ~

-urn
•1"3
•11c;14

·-·....

Invalfd tnc,
IT"IV;\lfd addl'ess 1

I riv a 11 d Prlor!t~,
not t :~ S T,\ L~ EO,
?artJt.lon not i ,, system,
T~s~ l s active,

•208

--......--

.-'J99

•• Unavaf laole I f st node,

. • j 10

... 111
.. 20~

T~sk

T~sl<

Ts CJlsaolerl,

SYSTEM OtR~CTIVES

.
•.. "' - . .
.
--·-····-----~----·-··.

Thfs OtrActfva fnstructs

·tf,

ANO

~M~Y

t~e

ME~O~Y

mn~e

system to

AVllLA~L~,

Task

nctlvd

Prlcrl~Y

and

Partltlon ~a.y t-.>a sr.eclfled, :f'. a r:rlorlty (s ntit ~p~c!ffe.'i,
t nA Ta s I( 1/4 r I ! r u ., ~ t t h a Da f a lJ I t p r I 0 r I t ~' ~ 0 ~ c f f I e rj \I/ ti n n t h t3
Task w~ s I "' S T AL L. e d ·•
I f .:\ n a I' t I t To n f s no t s r.> a c I f I e d , t ~ e
Task wtl'I
run
In tne Default PartltJo,, so~clffe~ "n~n 'th~
Task wa s p.! S T AL. L. a rJ',
A DP d o f t h e f o r I ., w f n ci f o r :-:rn t I s u s o d I
"'Cf
wd,'

00
~1

Wd, 02

(Id.

·(} 3

W';i I

.., DIC (13)

----

& cP r I o r f ·t y J ,
Task name < f I,. st ha I f } ,
Task rial"" a (isecond ,, ~ l"fq.;),,

na,,a
t
....., tPartTtron
(seco"d nalf)J,
0 artTtf o'1

(first

~llf)J,

na""a

t ti a O1 r P. c t I v e I s oa r f " r .., e d , :: ~ n d I t I c '' Co d o
and the ~l~octfve ~tatus ~~rd fs sot P~sltJve
1f

I f t;, e J.T r n ct J v e I c; " e J ac t Pd 1 con ct I t f on
t ne ~ I ,. e..l r v a s t a t ll s w0 r d J s s .., t t ('

. ~ nd

-10~

••

I~valld

DICt

•11~ •• T~s~ ~ot l~STALLEO,
•111 •• Partf t!on not i" syste~,
T~s~ Ts actlv~,
·
•21:3
• ·20g
Task Ts oJs~oled,

....
.......
•205

•99?

u~avaf lao!e

rne~ory

avaJ 1aole 1

I tst

~Oda,

0 n~ . 0 f

~et ,

<~1),

ciJ ·~ o '' V''

neqntlve. vaJue~ to lndf c~te reJoctlon ~nd tho
•103_•• ll"IVllJd a:'fdf'er:;s 1
•1.04 •• biv;.\llo p,.jorlt'J1

'' v ••

f ~ c I ~a" e d ,
t h e f 0 ! I 0 ,__, I "' ~

re,s~n:

SY~T~M

PAl.E

JT~~CTlVES

.
.
~--~~~--~·-~---~~-·-~·-·
T~ls

OJrectJve [nstr~cts the systa~ to make a Task actfv~ at
some future t1~a, s~e~lf Jad Jn terms ~f 'ti~~ of dayt~ A
oerlodlc r~scnedul9 T~tarv~1, Prlo~(ty, ~1d Partltlon ~av be
optlon~lri

Task Is

soeelflsd',

~c"eduled

P'escnedulln~

run
~I II

once~

t~ . P'\ot

s~eclft~1,

t~e

prlcrlty
Is nnt
s p e c 1f ' a d '
t ,, 'J
r A sk
r IJ n a t t h 9 D9 f ~ u I t p r ' 0 ,; r t y
. s p a c 1 f I a ci .i1 h e n t ti a Ta s k '""as J NS TALl- e d ,
If · ~
o a. r t I t I ~ ,,
I~
not s'aclf(ad, !~e TasK wlll run Jn the Qef~ult Partltlon
Spqclf ftd wnen tnA T~sK was INSTA~~ed,
A 0?8 of' the

f o I I o wJ n g f o r ifl ~ t I s y s e d !

.. DIC ( 1, 5 , & t:?l'forltyJ,

wr.r, J1 .. r~sk naMe (ft r st na If),
<second ha If) 1
rast.c
Wt.1, "2
w,1, J.3 -· DA 'f & rirUR,
~

Wd, '""'

-J4 ...
.... C'1eschenu1a lnterv;il ,.,a,,nrtudeJ,
na~G

w~.

M!NtJTE &

Wrj 1

Wd I
fl tJ I

w~·.

-·""·-

~1
1~

-·

S£G0~'D,

(q0!-;Cho~ule

Liii l t S J &

Unuss'1
t"\alnJ,
(Pa,,tltfOrl n:;.me (sacof'd half)),
(P~~tftfo"

f P"t~rva!

name

8~te,

< f I" st

·~

l f t ~ e O1 r e c t I v e I s D e r f o r ,,, e d 1 Co n ol t I o n Co d e 0 v ''
Is
an1 tne n1~acifve ~tatus ~ord ts set onsltfve <+t),
I i ' t h e Dr r A c t I 'I Q I s

r e j e c t ") d ' c 0 n d f t l 0 " r. 0 rl e n v !J

negatl've _ v~l4es to

lnd(c::\te

and t ne 11 I ,. e c t f v e

·-...

......
•999 ·•11~

•111

-20.q

I s c I ~ a ,. e ,, '

st :\.tu s ~~or r1 I :,; set . to on P of the f" I 1 ~\·I i r g
feJectfon :ln1

the

r-eason:

fd ore,
·- Inval
Iny'=\lfd arid" e ss,

•100
•103
. •1J4
•105 ••

' et ,

Invalld ?rlorfty,
Tim~ c scnP-du IP.> c~r~rnnter,
Task not YNST~LLEr."1
P :t r t I t l o ri not I ,, s:tstem,
Task Ts df S!iCled1
UnavaJ I able l I st ,,ode,

Inv:llld

PAGE

SYSTEM OIRECTlVES

TH£
"RUN". DIRECT?Vr
.
.

~---~--~~--~-~--~--

TnTs Of r~ctfve
so.,. e

f nstryets tho system to ma~e a Task aetlv~ ~t
s p e c t f I e d Tn t e ~ s o f ' d e I t a t I iTI A f o i1
A oerlodTc raschedul~ Interval, Prlort•y, and
rn a y
i., e o !'.' t t o !"1 a ! I y s p c e l f l e ~ ,
r f e s c '' f" du I I n :i 1 s

f u tu r e

. 1ssuoncel,

t I r.'! a ,

P ~ " t l t I o n·
not spo.o l f I ed,

T1s~ I~ sen a du Ind
Ts n~t s~eclfled, tne Task
. Prlo,fty s~eetfl~d wnen ~ha Task
oa,tltl.cn ts n~t snaelf l3d, tn! Ta~k

the

. orlorlty

Partltlon qpecJf fo~ wnen t~e Task
tne fol lo ·r lfn1 format Is 1.1s,dl
~d~
~d 1

0~
~1

~~s

oncn,
wt I I run at t~e
.t;o

w~~

wf I I

IF .

l'U"

o~f~ult

t~STALLed,
ru~ fn t~e

lNST,LLad,·

c~~~ult

QP6

•• OI0-(\7> & CP,(orftyJ,
•• Task na~e (ff ,st hal.f>,

Wd 1 ~2
~d, ~3
~d,.~4

-· T~s~ ~a~a (~eco~d h~lf),
•• Schedulo 1e!ta tt~e ma9Mltu1e,
-- sc~rdu!P darta time units~ U"u1ej g~te,
Wd, ,J5 •• (Qascie~ultl ll"lterval ,,,:lr1riltud~J,
~d• ~~ -· tqe~chajule Interval unttsJ & W~use• S~te,
~d 1 07 •• CPartftlon na~e Cffrst ~alf1J,
~d, l~ •• tPartftfon "~me (second half)J,
th 1 0 r r n c t I ~ e I s o e ,, f " r ""e d , Co " d i t I o r. Cn d a
" " ''
~nd tr"'e IJlreotfva ~tatus Word (S se:t" oosftfv~ (+11 1

.If

~ e t. ,

t f · t ., e DTr e c t I v e I s ,. e J e c t 9 j 1 c o n d i t r o :i co d e !• v0 I ~· c I ~ a ,. e r., ·
an "f t 11 c D f r a c t f v A ~ t l t u s .., o r d I s s ~ t t ~ o ri A o f t h 9 f o I r o :o! I ,, y

negatl've values to Jriof cato raJeictf on and the re::lCJon;
•1U·!l
· 11

Inv"ilfd

DIC,

un -- Inv11 Tci a~dra~s.

•104 •• Inva!Td Priority,
•H'5 •• Iriva!Td Tim~ <scnedtJle) o~ramater,
Task not lNSTALLE:n,
•11~
P~rtltlon not i I" Sistem,
•1.l.1

......

•20':\

...

T?.sk

~999

UriavaTlao!~

clsaolad,

l I st nJde 1

SYSTE~

OIHECTIVES

·-. .
.
..
----------------·--,.

T h Ts .0 J r e c t f v e I n s t r LJ o t s t h e s y s t e IT' t o m;\ k e a T a s !< a c t J v e ·~ t
· so~e future tf~e, sneclf f~a Tn terMs of 'aolta tf~q from

ctoc'<

synchronlza .t ront,

Ul"'llt

lnterv~!,

Prforrlt¥ 1

· A

PartJtltl:i

e,nd

p~rfonlc
nitty
he

resc!ie.1u1e

tiptlonr\llY

spcalflerf, If res~hed1..1lfn<i Ts not soer.lflf1d,
the
Ta~k
Js
'sch9duled io run once, If a orlorlt~ f5 ~ot speclffe~, :~o
.·. T a.~:~ wJ I I ~ u n a t t ~ e oe f ~ u I t
P r r o r I t ':I
s P ~ c r f I e d w., e n t ne
. Task was l~STAL~ed~
If a P~rtftron 1~ ~ot ~nee ff le~, t~e
Tas~ ~I l I run In t~e Default Partftlon · so~cff fed
wne" the
.Tasi< \~as

INSTAl.Led·,

~ · uPd

the fol l!'wlng forrn3t

Is usod1

Wd·, 0~ ~~ Dl~ (l,9) & CP, 1nrltYJ1
Wd·, ·01 ... T a s 1< n a~. a Cf I ,. s t h a I 'fr,

.., ·~f~ ' 1e1 2 - ..

T~Sk na~e (second nalf),
S c n ~ d u I e '.1 e I ta t I m.:) r.1 n c" I t u rl e ,
Wd, k}4
Scnedule .1e!ta time units~ U""usad Qite,
Wd, ~5 ~ (qec;cherlu I e I ntP.rva I !t1'l9n ! tqd<'J,

·wr1, ~.3
Wd:
Wd',

H-:f I

'16 -·
~7

...
12..,:.~

tRe~cher.ule

jntnrval

~nJt~J

& U~use1 By+e,

t?artltfon namo Cflrst ~alf)J,
(Partltfo" name (s~c~n~ n~lf>1, ·

t t'\ e 0 l r~e c t I v e I 5 p e ,. f o r ma d , Co-n d I t I t" n Co d a
" V '·'
and tne Dfrectfve Status Word fs sAt pasftlve (+1),

·If

ere t ,

t h 0 Q r r ') c t I v e I s ,, 0 .J e c t e d I c 0 n .j I t T0 r'I c 0 r1 e ,. v " I s ~ I P. a jr ~ 1 I
a n -1 t h o 1 i r tt c t t ve ~ t a t u s ~ o r d I s s P. t t (') c n e o f t h e f o I t o \" l ri y
negative val~es to lndJcata ~e_Jectfo~ ~nd the re~s~nl

. If

•10~

••

I~v~ITd

DIC,

•103 ·•• Inval Jd arfdress 1
·1~4 •· Inva1ra rrlnrrtv,
·1~5
~11~

•• Invalld Tfm9 (sched~le> pnr~me.ter,
•• Tas~ ~ot INST~L~Er~
.

•111 ·- ?irtltlon not In
•20~
• 99 ~

~.. ~

syste~,

Task Ts ~ls~olad,
U,, a v a l I a PJ I e I r s t n o d e •

SYSTEM OlHECTlVES
'. Tti
. r.

'' PJ S T AL, L.. & REQ11 e: S T" O I P ECT l VE

.
.
'
..------·--·~---------------·-··-...
.
...
.

...

-· ..

Thls Olreotive Jnstrycts the system to make a Task actfve
even ff ft J~ not I~STALLed Cthe Tns~ Jmnge ~ust have heen
b u 1 I t ~ n d e x t s t a s a " TSK '~ f f ( '? ) ',
1f t h ~ T a s K h a s ,, o t
~ e en
IN5TAL.Led,
Tt ls C1) 1nsTAt,.LE:J 1 (2) RE"l~CSTe:1 1 and (1)
REHOVE:O, If t~e Task IS aTrAady tNSTALLer!, lt Is Jv~t
R£~VEST~d.
A PrforltY and
~rTo,fty (~not sp~clf Je1,

Partftfon may oe specif Jed,

·the Task

wl ! i run at thA

!f a

Qcfa~lt

s p '"1 c l f r e,.;
whe,,
the
Task
'"a~
p.i ~TA L. Leu, , •J.f a
Part1tJon Js not &~eclfiaJ, tna Task wl I I '0" In t~e Oef~ult
Par t Tt I >o'1' so e c 1 f I 9 d wn ~ n t ~ e T~ s k ·~as 1 N5 TA L. l. a rt , · · A~ ran C' f
· the fo1 lowlng forrriat Is ~~odt
Pr f o' I t y

Wd,
Wd,

ze ~·DIC. (~l, · ~ CP,torftyJ,

-·Task na~e (f l~st half>,
·- Task na~e Csaoond half>,
wo,·~3 ~~ [Partltloi name (first ~1lf)J, .
Wd
' ... A •• (Pa,tltfo~ name Csecono ~~lf>J,
. • 'I.I
we,· z~ • • De v Tc e ,., a..,, e < f o r " T~ K'' f I I a > ,
Hd t 1.16 .. - De " l c ~ u n I t nu .n b e ,. & CEi=' NJ ,
wtf ·, lJ 7 ~- Clnstal I ~tatus ~ordJ~
Wd,

~H.
~2

. l t t ti e Ol r e c -~- v e I s o a ,. f o r ~ e d , Co ,., 0 I t I i n. Co d e . ,. v" l s s e t , .
., a n d t ne ~ I ' e c t J v A s t ~ t y s i~ o r d I s s a t '°' C' s t t f v e a s f o I I o ws 1
+~••Task

al~e~dy

INSTA~Led

<n~r~al

~E~UEST)

·+2 •• T~sk

tnc;tril latl~n liiltlat~-;I •• r;:v~nt Fl;:\.9
a..,d l!"'\StJ.l la.tfon St~tys ~r.>r"d to oe qe~ ~s fOl IO'NS

uoon eo-npletlon1

•1 •• Task

t~STALLEJ,

• 1 • • Ta s k N0 i

I ~J S ~ AI. L'ED ,

I f t h e Dl r o c t I v e I s r e J e c t e d , co "'-d f t r o ,., co d e '' V'' I s c I f' a r e d ,
a n,.d th~ r:1 t rec t f v ~ ~ t;;. t 1.1 s ~or~ 1 s set t" one of t"" 9 f" I I ow I ~ ~
negative v~l~es to f~dlcatA rejectfon ~nd the reas1n1
~i~r

. Invalld DIC,

.....

lnvajTd a1dress,
•103
.. 104 •• I~v~l'J<j Prlorfty,
·13~

•lll.
-2~'3

........... PartltJon
H~ndlPr

n~t

of tNSTA~~ATlO~,
jn.system,

c~pable

n~t

Task Ts c;.etlve,

.. 2~'3 •• Task Ts dlsaolad,

• 999

uriavaf jaOle

IJ~t

P"Oda,

SYSTEM DIRECTIVES

PAGE

..
.·
···-------·--------···--·
..

·'

lhls directive Jnstructs the system to set an t~df:~ted
Event. f!'ao after !\n lndleatE'!1 time lnterval has elapsed', A
DPA of tho f o 11 ow I "'9 f crnclt Js use(i;
Wd~

;d,

~1· · ...

De I ta t 1rn~

w~.

e2 --

o.etta ttme unfts,

OIC (23) & ErN,
~a'-ln f tu de,

If the OTrectlve ts oarformed, Con~ltfnn Cnde ,, v,, Is
and the Of rectrv~ Status ~orrl Is set ~osltlve ( + 1: I

·~et,

.I f th a DTr e c t I v e I s ~ e J e c t e d • co d ., ·t l o r' co d e " '' " I s c I ':? a r e ~ , .
and the !11,.eotfve $t~tus ..Jort:4 Is set to one of the fo! lowrng
negat{ve . v'.ljlJa'S to · lndlc~te reJectfon :\Od th" reason~
~101
•1~1

••

Inv~lld
I~v~ITO

Ute,

EtN,

. -1il3 •• ln\•a If d addrd!lis·,.
·1~5
~99~

··~

I~valld rrma Parametar,
Jnavaf faole list element,

SYSTEM O!RECTIVES

PAGE

~---~·--~--~---~~--~-·-----~~---~---~----

Thls OlreetTvo lnstrycts tne syst9~ to QnletA pend(ng
scheduled exaoutfnn 'eiues~s for an lndl~ated Task~ A D0 S
of the foj !owing format

ts used;

~ ~· o d e I n a J c a t o r ,
Task · nane (fl,st half>,

~ d ·,

0 ~ .. - 9' Ot Q ( 2 5 >

Wd,

'Ad,

.... . Tas~ name (second. nc. If> 1

ftll lo~Jri~

are
r~cognize".'1;
sckedule1 reouests for the Jndl~ate~ T~~k
~ocie=J -- nnly
THAT rliVE 8EEN M~JC:: av THE tSSUI~G TAS~ are cane~! l'ar(.
·Mol1e=1 -- AL.L sc~~dyled reQuests for the Jnrjlcate1 T~sk are
cane.., I led~
The

t ·~o

c~ncal 1atfon

moJes

· I f ·t n e OJ. r a c t I v e I g ci 9 r f o r ,,, e d , Co n d f t t o n Co d e

and ·tne Oireotlve

Stat~s

~ord

'' V''

s at ,

Js set oosftlve C+1),

I f t h e 0 l r ~ c t J v e f s ~ e J e o t e d , Co n :l l t T o n Co ~ e '' v H I 'S c I CJ a r: c M,
a nd t ne 0 I r e e t 1 v e ~ t n t t; s 1; o rd f s s P. t t o o " n o f t h o f o I I " ~ I " g

negatfve

·l~~

v~l~es

f~dfcate

,eJactlon ~nd

... lnval f d DIC,

•!03. •• l"w:t! ld ariJress,
· ·11 ~~f "'... Ta s '< ,., o t f n s vs tam,
•1J~

•• lnvalld Moce

Indicator~

th~

r~aseni

PAGE

SYSTEM DIRECTIVES

······------~-----·----·~-------....

•

.•

•

••

•

TnTs Df rectlve Instructs t~e s~stem to delete pen~lnQ ~ark
T J me
r e q u A s t s f o r t h e I s s y I n g t a s " ·, · A Dr' B o f t h a f o I I o i." 1n g
· fo~mat

Is ysed a

Wd ·, J ~.. .. .. 0 t C ( 2 7)

CE: r NJ 1

·. If an ~ F' ~-I Ts so e c I f I o d, 0 NI. Y

~1 ~ r k
T t rr e re 'Jue st s
<b v
the
Ts s u Tn g Ta s k > t o s e t t ti e I n o ·r c t3. t e d E v e n t F" I a g a r e c a n c ~ I l a d ·• ·
0 t h e I' wJ s .~ , A1... ~ Ma r ~ T 1mo r e Qy e s t s f
t h e 1 s s u I n rJ
Ta s '< "' r a.
cancel Jed,

ot .

. I f ·the Ol r o c t I v e I s o a r f o r~ e d , Co n d I t l o n co d ~

and the Dfrectlve ~t~tus

~ord

'' V''

f s.

s et ,

Is snt p~sttfve (+t),

·· 1 f the DTr e c t J v e .I s ~ e J c o t e d 1 co n d J t 1o n Co ".1 e " 'I '' I s c I ,.. a r e d ,
a ntt th c Q f ,. s ct l v o r; tat~' s wor rf l s s u t to one o i the f ~ I I o '" i "'g
nog~tlve vq.tQ·as to Indicate reJectfon und the rea~on:.
~

·1~~
~101

~ ·

-~
~~

InvalTd DIC,
Invalld ErN,

THE: '' CL ~ Ai ~ E: VE'' T f L Ar, '' :l I RECT 1 VE
•

•

n··~~--~----~--~-···~-------~--ThTs Ofr~ctJve 1~strycts the system to

Evont

r1·~~
of 1.;~e

A OPB

W('J ·,

and

report tne flag's

fo11o~lng

~~ C.. • •

fornat

elea,

polarJt~

fndlc~t~d

~efora

c1earlnq,

1.s usedl

0 t C ( 31 > & E: PJ ,

. I f t h e O1 r e c t I v e I s ne r f o r ,, e d , Co n r. l t f c ri Co o a '' v''
Is
se t ,
1
. a nd t h e D I r e c t l va 5 t a t u s ~~ ~ r d f s s e t p o s I t f v e a s r o. I I o t1 ~ t

wa, al~eady clear, ·
+2 ••flag ~as set,

·+0 -·

f la~

lf th.a L.Jfrectlve Is raJected-. Condltlo!"\ Cone nvu 19 c1eare-'4,
a n d t h e ~ f r e c t f v 3 c: ta t y s ~~ o r d ' s s P. t t o o n A o f t ti a f C' I I o ·" I "' g

neg~tlva v~jijes

to l"dJc1te reJectJon

~nd

the

reas~nl

•10J ·~ InvalTd DtC,
•1~1

•• tnvatTd ErN~

THE "SE t . E'·'ENT f.L Ar;" . DI REC T IVE
.
~---~-----·-----·-·"··---··-··
.

Thls Otroctjva Jnstrwcts the system to
Evont r1~~ · ana report ~ne f lag!s p~lirltY
rJ?R of

~et

~efcre

1n~lc~ted
sottlng~

the f o 11 O~" I!"\~ format 1 s useo I

I f t h e r; 1 r e c t i v e I ~ oe r f o r :-i e d , Co n rt I t I o :i C~ d ~ '' V"
I s . c; A t • ·
a n H t h o !:'! I r o c t I v e 5 t a t ~' s w~ r d I s s e t p o s l t I v q n s f n I I o 'N s 1

+z •• f la~ was clra~e1,
+2 -· flag

wa~

alre~dy

sst~

I f th 0 0 r r P. c t J v e t s r e J e c t 0 d f
t h e n I r e c t f v e 5 t a t 1,1 s wo r d

=l n d

negative

val~es

in~rc~te

•1Z~

...

Inv~I Id

D!C,

·1~1

·~

Invalld

ErN~

c0 n d ' t l c ,., c0 ~ e " ,, ,. t q ~ I e af c ... I
Js

s P t t o n n a ~ f t " ~ f c I I o .., I r ~
~n1 thq roasonl

~aJactlon

SYSTEM DtRECTiVES

PAGE . 19
\

. THE
r cLA Re: . s. t G!\J I r I c. A~! T Ev EN. T" DI REcT I v~
. . "0
.

·~--·~---~--~----~---~-~----~~---------~-ThTs ·otrectJve Jnstructs the system to declare a SJgnf f Jeant
Ev~uit,
A I so,
an Event Flag may ~e s:iee If f t'd to ~e sPt
BErD~E ~he declaration,
Whe~ an Event fla~ ts soeclf l~d
to
· he· set, 'ts Pola~lty b~fore settfng ls reported, A ~pq 6f
t ne f o I l oH 1n. g f o I' ;n a t I s u s e d C
Wd~

DIC (35) & tEFNJ~

I f th e 0 Tr ~ c t f v e I s p a r f o r ,. , e d , Cc n rt Tt I c n Co d e '' V" · 1 s s e t ,
a nd t h A. 0 I r a c t l v 9 s t a t u s w0 r d r s s e t " ~ 9 I t vq n s f <lf '. 0 ·~ s l

~- no Ev~nt

rl?9 seeclf Jed,

+"+2 •• Sooclf led f lao was
was cleared,
alreaJy
· ~·

ftag

Sp~clfled

~et,

I f t h e u1 r e c t i v e I s IP e J e 0 t ~ a ' c0 n d l t r 0 I"! r: 0 ri 0 ,, v" I s c I P. a r e .'i '
an d t h o D I ,. e c t J ve 5 t J t us r\ or d I s s e t t c c ne o f t h e f t' I 1 ow I f"I ~
neaatlve values to Indicate reJectfon an~ tho re~sc~t
1

-1~a

•Hi1

ore,

·~ · Inv~lld
·~· tnv=llTd

~~~.

~---~-----·----~~-----------:-Tnls u(r~ctfva Instructs the systa~ tn read an
Ev e n t F rl ? a n d r e no " t f t s p o I ri r l t y', A. OPR of the

format Is useo1

I f t l"l e oTr ';\ c t I v e I s

1ndlcat~d

foj lowl!19

oe ,. f o r e d , Co n d I t I o n Co d q
I'!"'

and tha Directive Status ,,..ord ts set

p~sltfve

:.\S

v''

1 s · CJ e ~ ,
fol 1'0111st

+2 •• Event Flag f s sot,
~- Eve~t Flag Is reset,

If the Drr;ctlve Is rreJected, Condrtfo ,"' Coce "V" Is r=lf'l,-\l'ed,
a n d t n 9 ri I r e c t J v e ~ t a t u s ~ o r d I s s e t t o o n o o f t '" e f o I I o '~ I ii g
negative v'jues to l~dJc1te rejection and the reason1

•\00 -~

Inv~ITd

~101

lnv~ITd E~N 1

·~

DIC,

THE

EVENT

~~AlTFOR
.

F~AG(S)"

DIRECTIVE
.

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

...

TnJs Of r~ctfve instructs the system to susoend the exeeutf~n
of
t e
I s s u I n g T~ s k l! r. t I I a n y Tn cf I c E4 t e d ~ v e n t r I a g s C\ f o ri e
of the trve fol 1owlng sets of flags fs s~tl

S~t ~ ·- r1a9s 1~1~,
Set 1 ·~ rl~~s t7·3~,
Set 2 •• r!ags 33·48 1
Set J -~ rtlgn 49-64 1
soi 4 -~ ~jags 1~64~
"- , ,....,,.
If tnn
jndf cated conditlon
_ exec~tlon Is NOT suspended,

· · A t wo • wo r ~ DP 8 o f

Wd, ~~ •• OIC C41)

~~et

·- .... DIC (55)

II d ,

~.3

wa I t

f nr

to wa I t:.

for

we rd,

of th Cl t ·o I ! ow Ing
Event f la9s of sat 4 l

..,..,.

I s lJ s e d t o

tndfcato' CJ,1,2,J>,

"1BSK

A f lve•word 'J?8

0i~

or 31

Wd ,. Jt •• St xtceri f I a~

wo,

t h e f o I I o wTn 9 f o ma t

Event f la~~ of S3ts 0, 1,

Ta~k

tss\.Jance 1

met

fcr~at

used

Indf cator < ~n'
Wd·, 01
Mask woro f cr t I a()s 1-1"',
Wd, ~2 _., M~S~- WO!" ci for f I at:i s 17-~2.

Mask

tne

r0,
or

·1 f

~orrl

-'t

~et

....

M~31"

word

9! ..

M~SL<

oJts

fr~~

rl1ht•to~left

wti, ,14
· F' I n g

f ~r f I ar.:s 3 3- ·1 d, .
r o f eJ r f !aos 49•-'°14 .•
renrosP.n~

n u ., ~ P. r s ,
~ !1 ~
a s n t ma s k ": o r d b ! t
cor esoond Ing ~voMt F 13.c;"'e
0 x a rn p I A '

flac;-~0,

t h e f 0 I T0 w j n 9 0 p B ' s !J s c d t C'
or Fla(1•21 1 "r flaQ•32,

,SYTE

~5,1

I ~IQRQ

1r"~'34

t h e J Tr 0 c t I v e I s 0 e ,. f n r r." e d I

and tno

n1rectlv~

Status

~orri

lncrea~lng

Eve~t

I ,, d I c a t !l s '' wa I t f "' r
•., a '

t f0r

c0 ,., ~ I t r n n c0 dG ., v!•
ls set positive C+t),
co

r I a g .:.1 ~ '

~0 t I

l f the Dr rec t I v o I ~ ,. e J e ct e d 1 con d I t Jo,,
1 e "V '' I ~ c I ear a f'!,
an~ t n e n I r e c t l v e ') ta t l4 s w~ r d I s s ~ t t n o n e o f th e f 1J I I o '" i ... g
"eqatlv~ vn1~as to lndf clta ~eJactf on ~nM t.h~ rc~s~nt
·1~~

.....

I~v~I fd

DIC,

.. 1 ~ 3 ·• • I n va I f :j ad d r e s s t
• ~3 ~ .. ~ I n v a I r d ~ e t l ,, a ' c :-i t 0 r I

•i31 ·~No flags

fndlca~od

Jn mas~(~),

PAGE

SYSTEM ~tRECTlVES

0
·r HE "S
. l' S . t: ~l D''. nI RE
. cT t. VE .
~

~--~~--~---~-------~--Th Ts iJ ' r act ( v e I ,, st r u ct s t" e sys tam' t 0 s l,J s p e,, d th 0 e )(er.'"' t r n n
of
tn~
t~syfrig
Tas~ untl I ex~l lc(tlY Jristructod to rec;uro,e
Cy Ta t n a r< E~ UM £ D I r e c t J v a ) ,
A 0 PR o f t h e f o I I o w i n g
f o r;n n t

· Ts ·usecq

Wd,

A . D ,. , e r. t l v ~

... DIC (43) & Unused

sta t iJ s 0 ,

E~te,

wI th c0 n d r t T0 ,,

.r 1

c0 d g . ., v,, . . s e,t ~- '. r s

_a t i,,a~s r etLJrned.

THE " RE SUM E'' ,0 I R~ CT I VE

.
..·-·-·-----·----------. . ..
..._.
'

Thfs Dlrf3ctjve j'nstrycts the syste"" to r~surn~ the
of an fn~icated Tas~ th~t has 1~sue1 ~ ~USP~~~
E x e cu t f o ,, n f th e s 11 SP E. 'Ju a d
Ta~ k
Is
r esu~ e1 a t
< I " s ~ r v c t I n r1 > f o I I o w I ,, g t h e
f o I 1.0 .-; I n ci f o r in a t I s lJ s ~ d ~

·wa, 0~
Wd~

Wd,

P.•

DIC

(45)

SU Sr E~!D

EMT 9

exeeutfo'l
Olrsctr\~.

t ha

·w o ,. o

0 PR o f t ~ e

& l'nus?.d dyte,

••Task name Cf f,st half),
-· ras~ na~e (second ~alf),

I f t h e u f r P c t rv e I ~ o a r f o r "'." e d , Co n c1 I t 1o n C'.) d e

'' v''

and tne

(~1),

~l~ectlvo

Status

w~rd

Is set

P~sltfvo

1. s

s e t ,_

I f th. e Df r , c t I v e I c; , a .i e c t c d 1 co ri d J t T o n c o ~ e . '' 'I '' I s c I e a e ,.. ,
and t ~ n I rec t I v e c; t ~ t q s ..1 or d Js set t" on A of the f o I I o '" I n g

ne~atlve

v~1uas

indlc~te

reJectfon

~ ~ ~ ~-~ .... ~

I n v~ I f d

a ?cI

•10~

lnv~lld

addre~s,

·~

•113 ••

T~sk

not

~208

Task

~~t

5USPE~Oad 1

·~

system,

~nd

th~

reasonl

SySTE_M J t :H."CT t ve:s

THE "EXIT"
. OIRECTI\JE
.

~------------------~
Thls Olrectfve f"structs the svstam to end
-

••

...&

_.,

·the 1ssuln~ Task'•

Wd,

t~e

execution

A LJPO of the f'JI 1o~ln~ form::it

Is uscat

"'"' DIC CS:,) & Unused ayte,

. Mo· Otrectlve Stat~s

Ts rtttvrned·,

Tti F: ..''. EX I' TI F' '~ . D! RECT I V. C

~--·-------------·---·

. . ..

•

Thfs Of rqctfve fnstr~c~s the syste~ to end the
tne fs~ulnq task If ~n JnaJcat~~ Evont Fla~ Is
n f the f o l ! ow I !' g f c r~ a_t 1 s used :

exe~utl~n

~ES~T~

A OPa

. w~~ 0Z -- DIC (53) ~ ErN,
If the Of rectlve Is acceoted
P ES E: T , t h e Ta st< t s EXI T a ,1 ~
· If the

Q f. r ,_, c t I v e

Ev~~t

f la~

I 'S a c e e n t a d a. r- d t r. e I n ci 1 c a t 9 d ;: v fl !°' t

r 1 a ·~

a~d

tne

l~dic~ted

se:r, Cr,n:'iltfon Corle "V" is SAt, thr! Dlrect{v~ r~tat·~s f-il")rj Ts
set posit.Ive (+l>1 ano a'<ecutfon

fc; al lowaj +.o

to col"ltlnue,

l f t h e D1 r n c t I v e I s I" a J e c t a d , C o n d f t To n r. o d e '' \' " 1 s c I ~ a ; e '1 ,
and th~ " I rec t r "~ ~ tc:t t 113 ft~ r M ( s s ~ t t ~ t' r. e fl f the f 0 I ' 0 '" ' "oJ
ne.gatlva values to indtcate· 'eJectlon arid the reason;
•lJl~

·~

Inval Jd DTC,

·1~1

·~

I~valld

ErN,

.
. ..

. .. .. . . ..
~--·-------------------TnTs Of r~ctlve instructs the syste~ to orovlde
~

.. ·'""'

Task

with

fo.rmat

current

tf~e

p~ram~ter~~

tn~

· 1~s~J~g

4 OFg of the fojlow)ng

(s qseol

wd , . ~ 0 · ·~ ... ot c ( 61 > & un us " d ayt 9 ,
W1,

Address of slx•byte buffer,

If the Dlrecilve Is oerfor~o~, the rndfcated sf x•cyte ~uffer
· f s s e t a s f o I ·1o ~ s , c o n ri I t I ci n co :1 e •• V" I s s e t , an d t ~ e
· Ol~actfv~ Stat~s ~ord Is set pcsftJve (+1>,
Buf"fer format1

Syta c

... Hou,.,ta, ·

-· MJn
By ta 3
..Y'
. Month,
Byte

Byt~

. 8Yt'3

s~cond,

ayte..,r.:. .. yea" 1

I f th e u r r A c t I v e t s ; e .J a e t e d • c0 d J t T0 n r, 0 ti e " v ,, I s c I e·a ('f ,
a n ti t n e rj l r e c t f v e 5 t ~ t u s rl o r d I s s P. t t o o n e. o f t h e f o I I o '·" I n g ·
n og a t I v e va i 'J e s t o I n a l c ~ t e , e J a o t J o n ~ n d t n e r e n s c. n ;
·1~0

•• tnvalld 01c,

· ·1~3 •• Invalid aMdress;

PAGE

~--~~--~~--~~--~-----·-----~~---~-Th Ts 0 I r P, o t J v e f n s t r q c t s t "' e s y s t e '" t o o f' o v f 1 e
t: h e
f , s t'd n g
Task wfth ourrent Task PS\rf\.lleters·,
/\ OF8 of the .fol lowfrtg
f o ~ rr.-t ~ I s Ys e d I

DIC . (6J) & ''nL,Sed Byte,

wd,

0~ .......

Wd~

a1 ••Address of f lve~word buff~r,

· I f t ti e 0 l r e c t I v a Ts
ftllad JlS fol loW!i1

th ~
Con ·: 1ftlon :ode
e o t ( v"'~ st a tu s wo r d J s s e t Po s l t I v 9

n e ,. f <" r me d ,

oI r

f f v e ~ w o r d h u f f ~r,; J s
"""
Is
5et, ~nd t~e
( +1 > ,

Buffer for:nat1

Wd, 0

•9'

Task name (ffrst half),

1 ·- Tas~

~~.

nam~

<seco~d

half),

W'-1 ,.· 2 .... Pr I oir It" 6 unusdn '='.?yi:e,
Wd, 3 ·- PartTtlvri na,,,e (first half),
1

Wd~

4 -~ Partftfon name (second n~tfJ,

.If tr.e Dlrectlve fs ;ejected, CondltTon r.01e "V'i Is cl~ared,
3 n rl th A n I ,. e c t J v e ~tat'' s Word f s set to on P. of the f n I t o '" J n g
" e t'] at I v e v ~ life 5 t o I " d I c a t a r e j e c t J o n a n ;j t ti e r e a s c n I
"10q •• lnvaJTd
•1~3

ore,

•• Invalfd a~~ress~

.PAGE

SySTEM OIRECTlVES
TH r-'
..

" St. ND. '' 0 t RF.: CT 1VE

.. ·------------

..
-·
~---·'·•

...

Thls DJrect1ve tnstructs the syst9m to se"rl a bl.ock of
to anothar Tnsk·1

A DPB of the fnl lowf"g for~at

.... DIC (71)

data

Is used;

CEF'NJ,
..
st r1alf>1
nari'le
na"l'ie
nn If),
Wd,
wr.r, 03 -· Data d 1,
W'1 "4 -- Data d ' 2,

Wd·,

~J~

Wd, kJ1 -.

Tas~

~2" ~-

( f 1,,

Tas~

(second.

I.~

~16

Wch it)?

Wd,. 13
Wd·, lt
Wd, 1?.
Wd 1 13
w(f. l. 4
Wd. 15

Wd·, 16

i·J

Wd,
Wc1'

""!""

---•9'

~·

Wd, .3'
Dnta Wd 1 4,

o~t~
Oat~

~~ d '

c; '

Wd, ~,
Data Wd 1 7,
o~ta

..... O:\ta ~~~~ dd ' q,

....., ...

D~ta

'1. ~'
Wd 1 11,

Q;i.te'\ '.-I 0'

... Oeta
Oat~.

iJ d '

12,

l f t h e D f r ,~ c t I v e I s oe ,. f ,, r ,., e d , co ,, 1j J t I o n Cc d a '' V "
Is
anrl the 1jr~otfve Statws word Is sat oosltJve t+1>,

~ e -+: ,

I f t h a Df r e ~t I v e I s r e J e c t a d 1 Co n d J t 1 o ,, c c rl e " v '' i s c I ':! a r e r! ,
a nd t h e '." i r a c t I v a S t f\ t '-1 s v; o r d f s s :3 t t o o n ~ o f ~ h e f o I I o w I n g
~ e g a t I v ~ v ~ 1u e s t o I n d f c a t a , e .J e c t J o n :t n d t h e r e a. s o n 1
•10~ •• l~valld DtC.
· ·101 •• I~valld E~~.
• f ~j 3 • • Inv a I f d Ario res s,

•110 •• Task
•99Q ••

~ot

In system,

Unava.1 laOle I Jst element,

SYSTP.M OtRCCTlVES

TH f.: '' SEN 0 AND P E0 UES T. '' 0 I RE' CT
. I VE

~---~~--~--~~--~-------~----~---

ThTs OJroctfvo rnstructs - tha system to send a b!ock of dat.a
to another Task, and Issue a PE~UEST itrectlvo for tnnt
T as k '•
A U0 8 o f +; h 11 f t"J I I n wI MJ f o r m~ t l s u ~ e d I
Wd ·,

0~
. .~.

--....
-....
.,,c ,-ftn s -W"•
-Wtf,

~1.

wd, i2

~er, 03
tldt ~4

DIC (73)
Tr.\S~

CErNJ 1

ra~e

<f1rst.

ha If>,

Ta SI< name (second ha If) f
Qqtn Hd I 1,
Data Wd, 2,
o~t" ~·Id 1 J,
a~ ·t~

\~ d '

"'" ... Datil Wd 5,

IH:t', ~17
l4 d. • J. I'll. •
· - ~~ d' 11,

D!:ltn

...
-~

D~t=l

Wti • 12
· Md, · 1J
Wd', ~4
Wt1 t' ~ 'i

--...

0 ::\ t =\
Qatn

~l d'

Oat~

l.Jd I
~J d '

6,
7,
~.

we,

0
.. I

•..Jd '

LJ,

Data ~·l Q I 11,
Oata
Wd, ;l.6 -""
Wd, ~2 ·,

t•' c SEi•O oPAr~tT~ri
I !>~et,

SDElClffedj

an~

Je; perfor:nod, the Event Ff aq - (l f
the REQUEST operation Is at~e-.,otad,

atte!"lptod~
Ts reJecterl, the iff QUC:ST 1~
If tt1e REQUEST IS r OJ t-JC t'?d 1 th A SE'!O ls left I ., ~ffeet 1
c~n~ltjon
~o~a
t t b o th th ~ S£ ~' D a~ d ~ r. a'J E~ T a r e o a r f o ,. Mo d ,
~!QT

J _f tt'\s SE1.. 0

'' V"

s at ,

a 11 c th e D I r e c t I v e St a tu s

'~ o "

( +1 > ·,

o Is sat ;Jositlve

I f the DT r e ct I v e I s ~ e Jee t ~a , Con d f t TO ·"' ~ u ~ e "'In f 3 c I ear e"',
and the n1reetrve Status ~ord ls set tn onA of tho fojlowi~g
ne~atf ve v~lues to lnolc3ta raJectron ~nd th~ reas~na
•10'1 •• Inval Td Cl! C,
•1'11
InvalTo EF" !'J'
Irwa If d Addrc;:i~si
-til
Tas~ 1"10 t
•110
f n svsteri,
r~_ sk
J s aett 11e,
•2Z3
T~sk ls df s~olad 1
·2~'~
.. 99~
Ur1aval l:\Ole I Ts t elernnr.t for
.999
iJnavallaole Ir st olemer.t tor

·...
...

--·-

·-·-

s E~JD I
~E~U£ST,

SYSTEM

OIRECTIVES

THE ''. RE CE. I VE ". . n I R Er; TI. VE

·~----------~~--~~-----ThTs OJrect)ve fnstrycts the syste~ to receive a block nf
nat,a that ha~ ~~e~ transmitted to the lssufn~ Ta3k Vf~ a
SE:NO or 5t_'!D A•!o R.F.QlJt:ST UJrcctlve,
f o·rma t Is us3:l a

7',

i:d, ~~" .;.. Ot C -C
~d~

If tho Ufrecttve
Is

f I I Ied

~ Ofrectfve

as
~t~tus

auf.f e~

)f.

-- Address of

A OPH of the

fol towfrig

Unus~d Byte,
14~word

buff Ar~

buffer
I~ ~erfor~o~, the Jndlcatnd 1~·word
f o·I I
s,
Con a I t T'Jn Co r. e '' \/" I s set , and the

~ord

ls set

~osftlve

(+1),

fof'mat,1

sE:me,. Task name (f lrst na If)
-...
half),
SE
er Task name
"'d '1

i,.fd',

~ C1

1.Jd'

~.
~2
~~1

'1 d ',

"id',

~ c;_

i.Jtf,

,,, d I

r·~i

cs~con~

Data ',.l tit 1,
2,
9!'• Data :J 0 I
-~

---· Data
oat~

z~· -

!~ (J '
t·J d.

3,
4,

Data we, 5,

z1 -wc:. 6'
,., d
---- D t ::\ d
•; 1'
Wd 12 .. oa t:.i d 9,
•
...
~d~
~d,

Dat~

1 :i

oat~

Wd, 13

Datn

\-J

!..J

Hd 1

7'
~,

1~,

wo, 11,

~d,

\lld.

15 ~- Data Ltd I 12,

!9•

o~ta

If th" Olroctlve

rejected, condltTor' Corle

and the n1rectfve ~tatus word
·ne~atlve

.-1i!J

,.1z1
•1w3

.. Je~

val~es

to tnd!cate 'aJectfon and the

Inva1To urc,
-- InvrilTo
...
E. F ~" '
Andress,
·-.... NoInvallo
data·,

"V" js cleared,

is sett(' en~ of

tn~

fiillo•j/l.,g

re~so"i

SYSTEM

DtRECTlVES

T HE. '' fff CF:. I VE 0 q E.. X l T ''' D I ~ E: CT !. VE

···-~--~---~~---~-----------~-Th Ts O J r e c t I v e I n s t r lJ c t s th e sys t em to r ec n t v e a b t o c k o f
data
(that
nas
be~n
tr~nsm I tted
v ta St:\Ju or
SE''u A~!D
Fl e: t'J uE s T ) , 0 r t 0 E x I T r,
t f R b I 0 c k 0 f d a. t a ' s f 0 IJ n d ( ti a. -; ., ~ ~ tl
se"t>, tne q~ta Is r~cejved,
If t ~lee~ cf dnt~ ls not
f o y n d , t h e j s s u I n g Ta s k I s EX l T e d ,
A 0 PB o f
t h o f o I I o w ., n g
f o rma t i s y s ·e d I
'~ 1f, · " ::." • "" OI
Wd~_~t

c (7 7 ) & " n t.J s e ',j fN t t:l ,

~-Address

14~word

buff~r~

If d a t a f s r e c e 1v e rt , th e i n d 1c a t e d 14 • "-' o I' d o •J f f e r I s ' I T I e d
a s · f o I I o ws 1 r, o n a "f t To ,, Co o e " V'' J s -; e t 1 a '"' d t h '3 O J r o c t. i v e
Statu~ Word fs set posJtlve (+1)~

Buf far for:na.t1

Wd,
w~·,.

l-Hl

\) l

wo.

Wd,

~;4

wrr. ~: 3

... SE'me r Tas1< name Cf lrst tia If)•

----·-...
-------

SEN'1er TasK r;ame (second ha! f),
Data :,} d. 1 f
Datri 1·J d ~
oat~ WCJ I

2,
3,

Oat~

wcr, ~5 ""•·Data wo, 4,

. "c·, l6
Wd,

.J 7

Wtl. 1~1
Wri; 11

W!" , 12

Wrl c 13
Wti, 14
w~ ·, 15

Oat~

~' 0 t
'4 d '

Dat !l . wa, 1,

Data wa,

Qa.t?.

wa, 9,

Oat~

!~QI

1, l{l I

Qata I.a/ Cl t 11,
Data Wd, ~z.

J f t h e 0 r r " c t I v e 1s " e J e c t a d • c0 n d 1 t l 0 ,, r. 0 d e " vIf 1s c I e a re ri ,
a n d t h e D i r e c t I v e s t a t u s tJ (') r d I s s o t t n o n e c f t h e f o I r a '"' I ~ g

negative
~10~

v~lues

••

to lnaJcata raJectJon and the

I~valfd

OtC,

•103 •• lnvalTd Aodrass;

rc?.~~n:

PAGE:

·,29

T h Ts 0 ' r ac ~ f v e I "\ s t, r LI c t s th e s ys t e "" ·t 0 e f f e c t i v e ! y r e m0 v q
·Task
frnm the systa~ (wftho~1t onyslcallY ,e~ovfng lt)r,
DPO of the f<;>I low I rig for~at Ts usad:

. .

P.••·-------------------

W~r, 0 ~ . .. • DI c < R1> ,,
Wd ,, 0 ~ · - -

unu s e d ayt e ,
T a s k n a rn e ( f I r s t h a I f > ,

·wQ, ~2 ••Task na~e ($eeo~a half),
· I f th ~ Dl r e c t i v e I s ti e r f o r me d , Co n ci I t I '1 n Cn d e '' V " ·· I s
· ant;t the ~lracttve Status w~rd Is set cosftlvP. t·+1),

s et ,

t · t h e O t r e c t l v e I ~ r a .J e e t n d 1 c o n d J t To ,, c o ,1 e " v ''

I s c I P. a r e d ,
a nd t h e . ::i I ,. e c t l v e· c: ta t u s ~ o r d r s s e t t o o n n o f · t h ~ f o I I o '" ( ,, g
neg'4tlve· va1ues to lnofc:.\te P'eJectlon 'lnd thA - reas~n:

~ J

~1~~

·~

lnvalld DIC,

·1~3

I~valJd a~aress 1

· •11~

••

~208

•• Tas~

Tas~

not Jn system,

Ts alr9ady dJsaoled,_

.· THF: "E~'l\Ri...E'' DIRECTIVE
. '
.
P•••~·-~••••••••~---~-

Thls Olreotlve 1~str~cts the svston tn enahle
T;a, k ', A UP 8 o f th e f o I I o wJ n Q f o r il a t I ~ u s A d ~
Wd I

•• OtC rn3>

& Unused

DI5A~~ro

8yte,

Wd 1 iJt ~- Task na~e Cf i~st harf >,
Wd I

~' 2

Ta~w

~a~e

(secono half),

I .f t h e D r r c c t I v e I s 0 e r f c r me d , c0 ?1 rl f t I 0 n c ~ d A ,, v,,
anrj tne ~lractfve stat~s ~ord Is set positive C+1),

I '3

~ at I

I f t ~a ll f r ~ct I v a I s re J e ct ad 1 con o 1 t To., ·ca~ e "V '' · l s c I !'a r a , ,
a n d t h 9 iJ i I' e c t l v e S t :i t q s ~i e r d I s :; e t t o " n o o f t Ii e f o I I o ..., I ... g
nega.tlve va1.ues to lnafcatg reJectlon and the re~soni ·
.-~1~1

•• tr'\ValTd DIC,

•• Invalfd addrass 1
TAs~ not In svste~,
~?~q ·~ Task fs not jf sao!ed,

~1ti3
•11~

SYSTEM DIHECTXVE5

PAGE

:rn

TH£ ~r1x IN M~~OPY~ DIRECTIVE 1;,2
- .,,
.
..
...
~---------------------------I

•

02
&3

. ..,

·-

J4 ....

I f t h o 0 f r P. c t I v e I s r e Je c t e a 1 Co n :'l J t To n r.: o t:f e " v '' i s c I ~ a r e rl ,
· e n 1 t h '! o i ~ e c t f v e s t tl t 'J s " ~ r d r s s e t t o o n a o f t h a f " I 1 o '·-' i ,, ~
negatlve·v~lues

tnafc~te

,eJection anrl the

• 1 ZJ·i' · "~ Inv a.I Td 0 IC,

Invajlct

. •1~3

•110

~Task

~ot

a~dress,

syste~,

• t 11 --;, .. PA. r t: I t I on no t I ., s y s""t em 1

· •2Z3 •• Task f s act Iv~,
"?~5
-2~~

... No ne~or~ ava t I ab I e,
-- r~sk Js·alrea~y f Jxad,

•999 •• unavarlaOle

I (st elemnnt-

reas~n:

SYSTEM

PAGE· 31

OtRECTIVES

T. Hr.. ". UN f t. X'' D
I REC. T ! VE
.

·····-·-----~--------

Th Ts O·1 r e c t I v a I n s t r 1.J c t s t h e s y s t em t o u n • f I x a. F9 I Xe d
A OPB t>f the fol IO\vlng for,,..at fs usodf

OlC ~87> & Unused ayte,
Tnsk "a~e (fl,st half>,
zi· ~- Tas~ name (second ~alf),

Wd 1 00
Wd~

Wd~

Ta s k ~

~·
-~

t f .t h e O f r e c t I v e I s P e r F o r r.i e d , Co n d I t I n n Co d e
a n d t h e n i r e c t t v e s t a t ~ s ,~ or d I s s q t p o s I t ' v a

" V.,

c... l. > •

s et ,
,, ~·

·. t f t h e ,.. ~.-1 r e c t I v e I s , e .f e c t a d 1 Co n d J t l o n r. o rl o '' V'' · I s c 't e a r e r:1 ,
en~ the n1rectfva ~t~tys ~ord fs set te one of .t~e foj1o~ln9
neqat1va . vali.Jes to lndfcate ,eJectJon ;ind the. reoson;
•t0~
·1~3

•• InvalTd DIC,
·~

Inv~lld

arldre~s,·

. ~11~ •• Task r.ot rn svstem,
~20! -~

Task not f txod,

SY~TEM

DIRECTIVES

~-·~~-----"·~--~----,

tho syste~ to termtnatA
the
ex~cutfon
or any actfve Task of lo~er cr1orrty, A QP~ of
t h e f o I I C' ~~ f ng f o r rn t\ t I s tJ a e a a
~hfs

OlreQtfvn

l~strvcts

Wd', oi ..;. .. 0 l C. (BY) G IJnU$P.d Gyt.e,
Wd~ ~1 ~-Task name Cfirst halfl,
Hd~

e2 ~- Tas~ name

(SeCOMd hAlf),

l f t h e uT ~ c t I v e I s o o r f o r "" a d , Co n rt ( t J o ri c~ aa " v ''
and t '1 s J-0 f " a c t ! v e s ta t u s ~: o r d I s s e t p o s J t I v A <+ 1 > ,

!; e t ,

I f th ~ 0 T r f: c t i v e I s r a J e c t ~ d • Co ri a f t· 1o ~ Co ~ a '' v " f ~ e I ~ a ' e ".i·,
the nJ~ectrve ~tatus ~ord fs set t~ one of the foj)owing
"e9attve vnl~es to ln~f cate ,eJoctlon and the r~as~n:
en~

: •10~

••

I~valfd

DIC1

. .. HB· • - I f"I v a I f d add ,. u s s 1
. • 1.J-~ • - P r I o r r t y ,., r r o ,. ,
· •11~

~203

•• Task not f n systeM,
•• T~sk f s ~ot actf ve~

SYSTEM OIRf.CTlVES

THE "CJ e: C~ARE _1\J 0 T C~ E~KP 0 INT A~ LE" 0 t R~CT IVE..
P••~~···~·---~-~····~··••••·~···~•••••••••

ThTs . nf ,er.tfve
Ch~ckpO f f'\t~o ra

the

lnstrqcts tne · syster:i
to
consider
a
I ssu I f'l'.'4 T:\S~ to b'l 'non•Checl(p0 I ntab 'e', A OPE

foj lowlng forrnat

~d~

ts usedf

019. (95) & Unused Byte,

J f t ne DJ r f.'? c t I v e I s o e ,. f o rrr a d , Co n d t t I o n co d e '' v '' l s
an~ tne Directly~ Status W~rd ts set poslt1ve (+1),

set ,

I f. t h e 0 r r ~ c t 1v e I s r e J e c t q d • c o n d Tt l o ,, c o ri e " \J '' i , .c i' e a r e ~ ,
n d t h A I') I r e c t ' vFl ~ t e t q s 14 0 r d r s s e t t 0 0 n e 0 f th 0 f 0 I I 0 w In g
·- ~ e g at ('f e v n l •J e r; t o I " Cl I c a t o r e J e c t l o n a n d t h ~ re ;i s ,, n !
8

: •10~
_ ~4~0

etc,
Ts not checkcofntable~

·- lnvatfd
~~

. ..

Task

THt'. "OECLAPE.
C~ECKPO PH A91.E" 0 I RECT I VE
.
.
.

....,...,.
~-~~~·--~---~--~~-~---------~--------Ttl Ts O1 r P. c ~ I '' e 1 ~ s t r u c t s th e s ys t em t o ri n g '!\ t ~ a D t: cL u~ r . ~i ~ T
- CHECK P0 p: Tl· 81~ E n I :- e ct f v e o y tr. EJ
l s !-; u l n ('! r as H·,
I t. ~A -..1~. ('J
make a TRs~ ~nec~P~lnt~ole Jf It wore not ~ec1~ra1 so at lt.s
l n s ta I I a t I (I n ·, A UP B o f t h e f o I I o w( n·9 f o ,. ma t I s ~ s n d ;
~

er, ~ ~A. .. • oI 9 < 9 7 > ~ !Jn us e d ayt e •

1f t ne Ol r ~ c t I v e I s o a r f o r :'11 e d , C~ n ".'f I t r.o " cn d e '' v '' . f s
end t~e ~lrectlve Status ~ord ts set P~sftfVA (+ll,

set ,

t f th tl 0 r r ~ c t I v a I '3 ~ e J e c t e ~ , c0 n d J t T0 n r: 0 rl e ,, V'' ' s c I A iH (J '1 ,
anrl the 0 j t'ect ( V~ St~ t•.JS \-'ord l S Sf't · to t')ne Of t!'1c fo I I 0'..J j l"'g
"~~atlve

v~1ue~

l~d(cat0

reJectfon and the

-!1011 .. ~ Inva IT d DtC,
•40~

•• Task

~as ~ot f sSUP.d a
DEC~APE ~OT CHEC~POINTAB~E

Of rectlve,

rea~on:

SYSTEM OtRCCTlVES

TH~ "3E:T. S~S~E"1
.

TrUP. VECTCPtt. UIRECTIVE

~---~-~~---~~-------~-------~---~--~~ThTs Of ractf ve f Mstrycts the system to
Syste~

Tr~P
vactor t~ ~"
zer o
l mo I I e s '' d l s c o n n e c t
.1 o I I o 14# f n g f o r m:it I s 'J 3 e d !
~d,

Wd~
!~ d ·,

~i -~
~ 2 ... ~

DIC (101)

set

Jndf CA.t~d

An·'ldt1ress , f
lndlc~ted addre~s~
the
S'I s t e m Tr a p " 1
A OP8 of

Unused 8yte,
Syste~ Tr~o nwmter,
sa r v r c e · r o u t I ,., a e n t r y p t , . o r z e ,. o ·~
~

lf th~ Ofr~ctlve ff3. nerf'lrl""ed, Condit Inn Code
a n ~ t n e 0 r r Q ~ t ' v''J ..s t 3, t IJ s ~ 0 r d J s s e t p 0 s l t I v a
If tne Ofrr.ctfvs fs ,ejected, Condftfcn
and. tri'l r.J,.sctfva Status lto·rd Js set to

negative
.
.v~1~es to

tn~Jcate

reJe~tlon

Co~e
on~

~nd

"V"

sei'.,

.< + 1 ) I

"V"

e1care~,

nf the fnl lowln~

ths

raas~nt

•1'rn' ·~ Inva If d Otc,
~101 •• Inv~ITd ErN,
•103 •• l~va1Ta address~
•120 -~· llleg~I Trao ID (numoer>.

_S ~, t e ~

Tr a o s a r·e o es er f be CJ I n an o t "'~~· ~- spa c ,

THr. '' E ~q T

~ YS TE M

Tr AP " DI Ht CT I V E

~-·--~-~~---~-------~------~~---TnTs Df rectlve Jn$tructs the system to
Tr~P
service ro~tine executlcn,
A
f o ~ ma t l s ~J ~ e d I
W~f1

No Dlrectfve

• ..

o I C <1 ? 3 > & u nu s ~ d Sy t e ,

St~tus

Ts ret~rned,

termlnat~

(ipq of

s1~tem

the foj lo~i,..g