ATARI PASCAL LANGUAGE SYSTEM - Strotmann.de

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C HAP TER 1 :A TAR I <strong>PASCAL</strong> I NTRODVCT I ON AN D OVERVI EWT h i s m a n u a l d e s c r i b e s Ch e A T * R I P a s c a l L a n g u a g e S y s t e m b e i n g o f f e r e dth r o u g h t h e AT AR I P r o g r a m E x c h a n g e as a s o f t w ar e d e v e l o p ment t o o l f o rp r o f e s s i o n a l d e v e l o p e r s . A T AR I P a s c a l i s a p s e u d o - c o d e c o mp i l e r w h i c hs upp o r t s t h e I n t e r n a t i o na l St an da r d s Or ga n i z a t i o n ( I SO) d r a f t s t an da r d( DPS/ 7 18 5 a s o f I G / I / BO ) i n c l u d i n g v a r i an t r e c or ds > s e t s . t y pe d a n dte x t f i l e s . p a s s i n g p r o c e d u r e s a n d f u n c t i o n s as p a r a m et e r s . ( 'O TO o u to f a p r o c e d u re > . c o n f or ma n t a r r a y s a n d p r o g r a m p a r a me t e r s . A d d i t i o n st o t h e s t a n d a r d a v a i l a b l e i n * T AR I P a s c a l i n c l u d e :Ad d i t i o n a l p r e d e f i n e d s c a l a r s : BYTE. W ORD> S T R IN ('.O p e r a t o r s o n i n t e g e r s 0 ( a n d ) ~ ! ~ / ( o r ) > ~ ' ? ( NOT )E l s e o n CAS E s t a t e me n tNu 1 1 S t r i n g s*b so luCe Var i ab l esE x t e r na l p r o c ed ur e sA d d i t i o n a l b u i l t - i n p r o c e d u r e s a n d f u n c t i o n s :gr a p h i c s o u n d . a n d c o n t r o l l e r d e f i n i t i o n sr e a l a n d t r a n c e n d e n t a l d e f i n i t i o n sm ov e a n d f i l l p r o c e d u r e sb i t a n d b y t e m a n i p u l a t i o nf i l e m a n i p u l a t i o n p r o c e d u r e sh ea p ma n a geme n t a i d ss t r i n g ma n i p u l a t i ona d d r e s s a n d s i z e o f f u n c t i o n sfhodul a r comp i l a t i on f a c i l i t i e sI n a d d i t i o n > r u n - t i m e e r r o r h a n d l i n g p r o v i d e s f o r d i v i d e b g z e r oc h e ck ~ h e a p o v e r f l o w c h e c k > s t r i n g o v e r f l o w c h e c k > r a n g e c h e c k a n du s e r - s u pp l i e d e r r o r r o u t i n e s .A TAR I P a s c a l h a s b e e n d e s i g n e d f o r d a t a p r o c e s s i n g a p p l i c a t i o n sc o n s i s t i n g o f c o mp i l e r s > e d i t o r s > l i n k e r s . b u s i n e s s ~ a n d e n t e r t a i n me n tp a c k a g e s . I t i s d e s i g n e d t o o p e r a t e w i t h t h e AT AR I D i s k Op e r a t i n gS y s t e m 2 . ()S a n d i s c o mp a t i b l e w i t h t h e A T AR I P r o g r a m T e x t - K d i t o r C T N 3 .T h i s c h a p t e r p r e s e n t s a n o v e r v i e w o f t h i s m a n u a l > t h e s g s t e m a n dc o mp i l a t i o n a n d r u n - t i m e s g s t e m r e q u i r e me n t s > a n d i t d e s c r i b e s t h ef i l e s o n t h e d i s t r i b u t i o n d i s k e t t e s .B e c a u s e o f t h e a v a i l a b i l i t y o f m a n y t e x t b o o k s o n t h e P a s c a lp r o g r a m mi n g l a n g u a g e > t h i s d o c umen t i s n o t a t u t o r i a l b u t r a t h e r ar e f e r en c e man ua l a n d a d e t a i l e d d e s c r i p t i o n o f t h e e x t en s i on s a n da d d i t i o n s t h a t m a k e A T * R I P a s c a l u n i q u e . R e f e r t o t h e b i b l i o g r a p h y f o ra d d i t i o n a l r e f e r e n c e m a t e r i a l s .
I . 1 ma n u a l Ov e r v i e wT h e f o l l o w i n g p r o v i d e s a b r i e f o v e r v i e w o f e a c h c h a p t e r c o n t a i n e d i nth i s m anua l.C ha p t e v 1 : T h i s c h a p t e r i n t r o d u c e s a n d o u t l i n e s t h e f e a t u r e s o f AT AR IP a s c a l . p r o v i d e s a n o v e r v i e w o f t h e s y s t e m a n d i d e n t i f i e st ' h e s y s t e m r eq,u i r e me n t s ,C haptev' 2 : T h i s c ha pt e r g e t s y o u s t a r t ed . I t d e s c r i be s t h eo p t i o n s o f t h e c omp i l e v a n d l i n k e r a n d i t pv e s e n t ss t ep- bg- s t ep i n s t r uc t i on s t o compil er s l i nks and vun asample pv ogv'am.C ha p t e r 3 : T h i s c h a p t e r d e s c v i b e s t h e e x t e n s i o n s t o ATAR I P a s c a l . I tp r e s e n t s s u c h f e a t u v e s a s mo d u l a v c o mp i l a t i o n i b u i l t - i npv'oceduv es i g v'ap hie s an d s o u nd e x te ns i ons,Cha p t e r 0 ; T h i s c h a p t e r b r i e f l g s umma r i z e s o fh a n d l i n g r o u t i n e s .t h e r u n - t i m e e r r o v'Cha p t e v 5 : T h i s c h a p t e r d e s c r i b e s t h e s t v u c t u r e o f a p v og r a m g e n e r a t e db g t h e c o mp i l e v . D a t a s t ov a g e i s a l s o d i s c u s s e d i n t h i sc h ap t e r .C ha p t e v 6 : T h i s c ha p t e r b r i e f l y compar e s AT* R I Pa s ca l a n d UCSD Pa s c a lC ha p t ev ' 7 : T h i s c h a p t e r d e f i n e s t h e l a n g u a g e f e a t u r e s o f AT AR I P a s c a l .A ppen d i x * : A comp l e t e d e s c r i p t i o n o f t h e l a n g ua g e s y n t a xA p p e n d i x 8 : T h e v e s ev v e d w o r d s l i s tA ppen d i x C : * comp l e t e d e s c v i p t i o n o f ea c h comp i l a t i o n e v v ormessageA p p e n d i x D : AT AR I P a s c a l F i l e I / OA p p e n d i x E : A b i b l i o g r a p h y o f a d d i t i o n a l r e a d i n g s u g g e s t i o n sAppend i x F : P l a g er/ Mi ss i le Demo P ro g v amA ppendi x 0 : Hel p f ul Hi n t s
Page 1 and 2: W ATARI' PROGRAM EXCHANGEATARI PASC
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Page 8 and 9: TABL E O F CONTENTSC H*PTER 1 :ATAR
Page 10 and 11: 3 7 5 1 2 T r i g g e r F u n c t i
Page 12 and 13: APPENDI X A :APPENDI X B :APPENDI X
Page 16 and 17: I. 2 S y s t e m O ve r v i e wThe
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Page 20 and 21: 2 . 1 Comp i l e L i n k an d Ru n
Page 22 and 23: T h e s y s t e m w i l 1 p r o mp
Page 24 and 25: 2 . 1. 3 R u n Sa mp l e P r o g r
Page 26 and 27: 2 . 2 . 2 Co mp i l a t i o n Da t
Page 28 and 29: g e n er a t e d w i t h e r r a r
Page 30 and 31: 2 . 2 . 4 B u i l t - i n R o u t i
Page 32 and 33: 2 . 3 L i n k e r Op e r a t i o n2
Page 34 and 35: C h e c o mp u t e r c o n s o l e
Page 36 and 37: 2. 4 Ob g ec t P ro g ra m E x ec u
Page 38 and 39: CHAPTER 3 :A T * R I PASCAL L ANQVA
Page 40 and 41: modul ~ / pro g ra m. E x t e rn a
Page 42 and 43: 3 . 2 D a t a A l l o c a t i o n a
Page 44 and 45: 3 . 2. 2 Pa r amet e r Pa s s i n g
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Page 48 and 49: 3. 4 . I NOVE i MOVER I QHT i NOVEL
Page 50 and 51: 3 . 4. 2 K X I TP ROCEDURE EXI T >E
Page 52 and 53: 3. 4 . 4 S HR i SHLFUNCTION SHR (BA
Page 54 and 55: 3. 4. h ADDRFUNCTI ON ADDR(VARI ABL
Page 56 and 57: 3. 4, 8 F I LLCHARPRQCKDVRK F I LLC
Page 58 and 59: 3. 4 . 10 CONCATFUNCT ION CONC AT (
Page 60 and 61: 3. 4. f.R P OSFUNCTI ON POS ( PATTE
Page 62 and 63: 3. 4 . 14 I NSERTPROCEDURE I NSERT
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3. 4. 16 W N B~ G N SF UNC't IQN 'O
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3. 4 . i 8 QPKNPROCEDURE QPKN ( F I
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3. 4. 2() PURGEPROCEDURE PURGE ( F
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3.. 4. 22 . M KH* V* I L i MAXAVA I
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3 . 5 N o n - S t a n d a r d Da t
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T h e pr o g r a m f r agmen t b e
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T he f o l l owi n g s e c t i on s
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3 . 7. 5. I . 1 Pa d d l e F un c t
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12. UCSD Pasca l daes na t f u 11g
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7 S ummav'y a f t h e AT* R I Pa s
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A PPENDI X 4 :LANGUAGE SYNTAX DESCR
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4 0 4 : E r r o r i n w r i t i n g
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P ROCEDURE A S S I GN ( VA R F : F
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F o r m a t t e d O u t p u tIn F i
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PROCEDURE READ'PROCEDURE READL N;P
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MI SCEL L ANEOUS F I L E ROUT I NE
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A PPEND I X F : P l a y e r / M i s
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P IOVENI S S I L E i ( + ST ART t"
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M ODULE PE EKPOKE '(+Thi s modul e
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INDE XA BSOL UT E v a t i a b l e s
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DEMUCUN ( c on f or ma n t a r r a
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U s e rt a b l e s p a c eW i nd o
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ATARIPROGRAMW EXCHANGEP.O. Box 3705
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