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!{ey and joystick numbers JOYSTICK 0 JOYSTICK 1 I FIRE211 FIRE 1 I I FIRE2jj FIREl j 76 77 52 53 For your reference .... Chapter 7 Page 23
Part 5: Sound Notes and tone periods The table which follows, gives the recommended ,tone period> settings for notes in the usual even tempered scale, for the full eight octave range. The frequency produced is not exactly the required frequency because the ,tone period> setting has to be an integer. The RELATIVE ERROR is the percentage ratio of the difference between the required and actual frequency. NOTE FREQUENCY PERIOD RELATIVE ERROR C 16.352 3822 -0.007% C# 17.324 3608 +0.007% D 18.354 3405 -0.007% D# 19.445 3214 -0 .. 004 % E 20.602 3034 +0.009% F 21.,827 2863 -0.016% F# 23.125 2703 +0.009% G 24.500 2551 -0.002% G# 25.957 2408 +0.005% A 27,500 2273 +0.012% A# 29.135 2145 -0.008% 8 30.868 2025 +0.011% NOTE FREQUENCY PERIOD 'RELATIVE ERROR Octave -4 C 32.703 1911 -0.007% C# 34.648 1804 +0.007% D 36.708 1703 +0.022% D# 38.891 1607 -0.004% E 41.203 1517 +0.009% F 43.654 1432 +0.019% Octave-3 F# 46.249 1351 -0.028% G 48.999 1276 +0.037% G# 51.913 1204 +0.005% A 55.000 1136 -0.032% A# 58.270 1073 +0.039% 8 61.735 1012 -0.038% Chapter 7 Page 24 For your reference ....
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Introduction AMSTRAD CPC6128 Integr
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Contents Chapter I Foundation Cours
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Chapter 8 More about the Bank Manag
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Connecting the computer to a monito
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Switching on - CPC6128 and MP2 Modu
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( Part 2: Connecting your periphera
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Connect the end of the lead which i
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Part 3: About Discs .... The AMSTRA
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Some other compact floppy discs emp
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Type mismatch .... means that you h
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On the screen you will see: he L L
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Reset the computer to clear the mem
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The single quote mark ' (which can
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Division (use unshifted ? key for d
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Mixed Calculations (+,-,*,/) Mixed
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Part 7: Save It .... Now that you'v
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To look briefly at some of the CP/M
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Make sure that you don't close the
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On the screen you will see: Drive A
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Part 8: Understanding Modes, Colour
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So it is with the computer. Using t
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Now let's change to a new paper. Wh
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For further demonstration of the co
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Just to prove that this is on the t
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PLOT Unlike the L 0 CAT E command,
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Circles Circles can either be plott
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440 cy(st+1)=cy(st)+1.5*r(st)*COS(s
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Now reset the computer [CONTROL] [S
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Envelope Number This is the referen
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Number of Steps This parameter spec
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Typing in for example: la Load "fi
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If you have connected an additional
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Write protection Note that you will
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At the A> prompt, type: disckit3 Se
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Part 11: Introducing the Bank Manag
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The contents of Screen 1 are copied
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.... where r % is an integer variab
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I BAN K FIN D will start at the cur
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Chapter 2 Beyond FoundationslIlSlBl
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But hang on! We said that we want t
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32 PRINT " 1 • enter info" 33 PRI
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100 ON ms GOSUB 120,210,270 110 GOT
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Directing data to stream # 8 sends
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This L 0 CAT E s where the menu I N
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440 FOR x=1 TO 100 450 WRITE #9,NAM
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AFTER AFT E R [, ] GO SUB 10 AFTER
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BIN$ BIN $ ( [, ] ) PRINT BIN$(64,
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CLEAR CLEAR CLEAR COMMAND: Clears a
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CURSOR CUR S 0 R [][ , ] 10 CURSOR
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DEFINT DE FIN T
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DELETE DEL E T E DELETE 100-200 CO
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DIM D I M 10 C LS 20 DIM friend$(5
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The optional determines how the in
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Parameter 2: This parameter must b
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If2 parameters are used, these are:
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ERR ERR GOTO 500 Line does not exis
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FIX F I X ( ) PRINT FIX(9.99999) 9
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GOSUB GO SUB ,line number> GOSUB 21
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HIMEM HIMEM PRINT HIMEM 42619 FUN C
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The state of [SHIFT] and [CONTROL]
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INSTR INS T R ( [ , J , ) 10 CLS 2
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The given in the KEY command may b
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LINE INPUT L I NE IN PUT [# ,][;][
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LOG LOG ( ) PRINT LOG(9999) 9.2102
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MEMORY M EM 0 R Y MEMORY &20AA COM
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MOD MOD PRINT 10 MOD 3 1 PRINT 10
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NEW NEW NEW COMMAND: Deletes the cu
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ON GOSUB ON GO SUB
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COMMAND: GOes to a BASIC SUB-routin
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OUT OUT , OUT &FBF4,&FF COMMAND:
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PI PI PRINT PI 3.14159265 FUNCTION:
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Note that when a semicolon; is used
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String Formats 10 CLS:a$="abcdefghi
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RELEASE RE LEA S E 10 SOUND 65,100
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RESTORE RE SI 0 R E [] 10 READ a$:P
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RIGHT$ RIG H-T $ ( , ) 10 MODE 1:
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SAVE S A V E dilename>[, diletype>]
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If the parameter is zero, the soun
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SPEED KEY S P E E D KEY , 10 CLS:
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STEP (See FOR) STOP STOP 10 FOR n=1
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To allocate space in the CPC612S's
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S Y M B 0 L AFT E R will NOT operat
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TEST T EST ( , ) 10 CLS 20 PRINT
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TRorr TRON TROFF TRON 113 TROFF:PRI
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WAIT W A I T
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WINDOW SWAP WIN D 0 W SW A P , 10
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XPOS XPOS 10 MODE 1:DRAW 320,200 20
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Backup Master Discs It is most impo
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When you have only one built-in dri
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Creating a Turnkey CP/M disc As wel
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Three useful sets of keyboard codes
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Part 2: Cassettes If you wish to us
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LOAD "" LOAD "",&1F40 MERGE '"' RUN
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LIST #9 OPENOUTandCLOSEOUT PRINT #9
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If the first character of the filen
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Disc directory Every disc has two s
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Notwithstanding the contents of the
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250 y=0:b=150:GOSUB 400 260 x=575:a
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ICPM ICPM COMMAND: Switch to altern
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ITAPE.IN ITAPE.IN COMMAND: Use tape
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cOPYTO: AMSTRADBASIC on tape * Bina
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Reference guide to AMSDOS error mes
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Part2:CP/M CP/MPlus Subjects covere
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Profile files can be constructed us
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Switching default drives If you hav
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Transient commands To perform more
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Colour Hex Decimal Colour Hex Decim
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The commands: .... or .... SET24X80
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PIP KEYBOARD.CPM=KEYS.CCP .... make
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Each disc can be assigned a label,
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Advanced programming Side 2 of your
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The program is menu-driven and when
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Chapter 6 Introduction to L This Se
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First Steps .... The? prompt tells
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Occasionally, when nearly all the n
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count Outputs the number of element
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* Iput (lastput) Outputs a new obje
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wordp Outputs T RUE if the input ob
Page 282 and 283: sin Outputs the sine of the input n
Page 284 and 285: Outputs T RUE if the first word is
Page 286 and 287: pots (print out titles) Displays th
Page 288 and 289: pr (print) Displays the input objec
Page 290 and 291: * dotc Outputs the colour number of
Page 292 and 293: * setscrunch Sets the graphic scree
Page 294 and 295: ht (hide turtle) Makes the turtle i
Page 296: * setx Moves the turtle's horizonta
Page 299 and 300: Property Lists: glist (get list) Ou
Page 301 and 302: * dirpic Outputs a list of picture
Page 303 and 304: keyp Outputs T RUE if a character h
Page 305: ent Set up a tone envelope. The for
Page 308 and 309: * nob'ace Turns offtrace monitoring
Page 310: RE DE FP When T RUE allows re-defin
Page 314 and 315: BASIC Control characters Value Name
Page 316 and 317: Value Name Parameter Meaning &14 20
Page 318 and 319: If you are tempted to PO K E around
Page 320 and 321: Machine specific BASIC graphics cha
Page 322 and 323: 69 &H45 &X01000101 • 73 &H49 &X01
Page 324 and 325: 109 &H6D &X01101101 113 &H71 &X0111
Page 326 and 327: 149 &H95 &X10010101 153 &H99 &X1001
Page 328 and 329: 189 &HBD &)(10111101 193 &HC1 &)(11
Page 330 and 331: 229 &HE5 &)(11100101 233 &HE9 &)(11
Page 332: Part 4: I{ey references Default ASC
Page 337 and 338: NOTE FREQUENCY PERIOD RELATIVE ERRO
Page 340 and 341: 17 Cannot CONTinue For one reason o
Page 342 and 343: AMSDOS error DERR value Cause of er
Page 344: GOSUB, GOTO, GRAPHICS HEX$, HIMEM I
Page 352 and 353: Printer Port VIEWED FROM REAR 17 16
Page 354: CHR$ Character Printer U.K. U.S.A.
Page 357 and 358: Part 14: Memory The CPC6128 contain
Page 359 and 360: It is intended that the part of the
Page 362: [ESC]b CPC6128 Colour bits [ESC]c
Page 366 and 367: ChapterS More out the Bank anagerll
Page 368 and 369: The command: I S eRE ENS W A P , [
Page 370 and 371: The specifies which record is writ
Page 372 and 373: Beware the mismatch .... Obvious er
Page 374 and 375: Chapter 9 At your leisure .... This
Page 376 and 377: The BASIC in your Amstrad computer
Page 379 and 380: Whose afraid of the jargon? As with
Page 381: If this process sounds cumbersome,
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Reconsidering the table that introd
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Some of the characters that you wil
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(Each character has a corresponding
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PRINT 10 AND 1000 Results in 8 agai
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Print formatting The PR I N T comma
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PRINT USING "\ test s \";"test stri
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Each of the following commands may
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.... and you will see that the 4th
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Usmgdata .... In a program that alw
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10 DIM a(5),b(5),s$(5) 20 FOR ;=1 T
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The sound of music .... Of all the
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Unless you are a very slow typist,
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Relative Volume Change 15 14 13 10
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The final part that can be added on
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In a complete program that may be m
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24111 IF p1$="." THEN ch1%=I1I:RETU
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Now RUN, and once again the dotted
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Ink modes It is possible to draw us
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10 REM latch animation 20 ON BREAK
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1410 I B 1420 IF fLag=2 THEN 1470 1
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2240 CLS:undraw=0:PRINT cmnd$(ro);:
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From then on, simply press the appr
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ppendixl Digital Research & AMSTRAD
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6. Registration Card DRI may from t
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ALU Arithmetic Logic Unit. The part
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Base The prime numeric consideratio
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Built-in commands Commands that are
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Compiler A complex program that con
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Download The transfer of informatio
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Gate Logical gates permit the passa
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Interpreter A further extension of
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Machine Code The programming langua
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Numeric keypad The area on the keyb
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Pixel The smallest accessible area
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Raster A system of 'writing' on the
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Software Programs themselves. May b
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Transient program A CP/M utility pr
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Appendix 3 Some Programs For You ..
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Bomber A variation on a classic the
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Telly tennis The one that started i
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75" PRINT" A 6 UP" 76" PRINT" Z 3 D
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760 ' 770 pwpe=(p1wp=p2wp):IF p1sa
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1540 1550 1560 1570 1580 1590 1600
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1130 IF VRX%=0 GOTO 890 1140 IF P%(
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2290 IF C%(J%,IC%)=6 GOTO 2310 2300
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3010 DATA 310,355,310,375,350,355,3
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1160 RETURN 1170 ON rm GOTO 1180,11
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2410 ' 2420 'Draw switches 2430 ' 2
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c I BANKREAD ......................
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D DATA ............................
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I IBM format ......................
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N o MID$ ..........................
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RETURN key ........................
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T Switching on ....................
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x y WORD ..........................
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