williams-et-al-1983-apple-ii-computer-graphics

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176 APPLE II COMPUTER GRAPHICSTable A2-2. ASCII Character Codes.DEC is ASCII decim<strong>al</strong> codeHEX is ASCII hexadecim<strong>al</strong> codeCHAR is ASCII character namen/a = not accessible directly from the APPLE II keyboardDEC HEX CHAR WHAT TO TYPE DEC HEX CHAR WHAT TO TYPEl/J l/Jl/J NULL ctrl @ 48 31/J l/J l/J1 l/Jl SOH ctrl A31 1 12 l/J2 STX ctrl B Sl/J 32 2 23ETX ctrl C Sl 33 3 34 l/J4 ET ctrl D S2 34 4 4s I/JS ENQ ctrl E S3 3S s s6 l/J6 ACK ctrl F S4 36 6 67BEL ctrl G SS 37 7 78 l/J8 BS ctrl Hor- S6 38 8 89 l/J9 HT ctrl I S7 39 9 911/J l/JA LF ctrl J S8 3A11 l/JB VT ctrl K S9 3B12 I/JC FF ctrl L 61/J 3C < >1S l/JF SI ctrl 0 63 3F16 10 OLE ctrl P 64 40 @ @17 11 DC1 ctrl Q 6S 41 A A18 12 DC2 ctrl R 66 42 B B19 13 DC3 ctrl S 67 43 c c20 14 DC4 ctrl T 68 44 D D21 1S NAK ctrl U or - 69 4S E E22 16 SYN ctrl V46 F F23 17 ETB ctrl W 71 47 G G24 18 CAN ctrl X 72 48 H H2S 19 EM ctrl Y49 I I26 1A SUB ctrl Z4A J J27 1B ESCAPE ESC 7S 4B K K28 1C FS n/a4C L L29 1D GS ctrl shift-M 77 40 M M1E RS ctrl ' 78 4E N N31 1F us n/a4F 0 032 20 SPACE space 80 S0 p p33 21 ! 81 Sl Q Q34 22II82 S2 R R30l/J3l/J73S 23 # # 83 S3 s s36 24 $ $ 84 S4 T T37 2S % % 8S SS u u38 26 & & 86 S6 v v3927 87 S7 w w28 88 S8 x x41 29 89 S9 y y42 2A 90 SA z z2B + + 91 SB [ n/a44 2C 92 SC " n/a4S 20 93 SD l ] (shift-M)46 2E 94 SE2F 9S SF n/a404347497073747679(Used with permission of Apple Computer Corporation)
Appendix 3Memory MapsMemory Map of a 48K Apple IIFunctionAPPLE MONITORAPPLESOFTRESERVEDl/O DECODEDOSUNUSEDHI· RES PAGE 2HI· RES PAGE IUNUSEDTEXT/LO·RES PAGE 2TEXT/LO·RES PAGE IDOS VECTORSUNUSEDTEXT INPUT BUFFER6502 STACKZERO PAGEAddress$FSOO·SFFFF$EOOO·$F7FFSD000·SDFFFSCOOO·SCFFF$9600·$BFFF$6000·$95FFS4000·$5FFFS2000·$3FFFSC00·$1 FFF$800·$BFF$400·S7FFS3CO·S3FF$300·S3BF$200·$2FFSI00·$1FFSO·SFFFigure A3-1 .177
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APPLE IICOMPUTERGRAPHICSKen William
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Contents1 Introduction 12 Computer
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1IntroductionThe level of graphics
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4 APPLE II COMPUTER GRAPHICSmachine
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6 APPLE II COMPUTER GRAPHICScompute
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8 APPLE II COMPUTER GRAPHICSzeros i
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10 APPLE II COMPUTER GRAPHICSthe sy
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•
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14 APPLE II COMPUTER GRAPHICSdiffer
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16 APPLE II COMPUTER GRAPHICSDOS ve
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18 APPLE II COMPUTER GRAPHICSThe po
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4APP LESO FTExtensionsObjectivesAft
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CHAPTER 4-APPLESOFT EXTENSIONS 23va
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CHAPTER 4-APPLESOFT EXTENSIONS 251
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Introducing -Diskette to Accompany
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5Graphics Modes andSoft SwitchesObj
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CHAPTER 5-CRAPHIC MODES AND SOFT SW
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CHAPTER 5-GRAPHIC MODES AND SOFT SW
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CHAPTER 5-CRAPHIC MODES AND SOFT SW
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40 APPLE II COMPUTER GRAPHICSthe le
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42 APPLE II COMPUTER GRAPHICSSoluti
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44 APPLE II COMPUTER GRAPHICSEach b
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..46 APPLE II COMPUTER GRAPHICS[ b
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48 APPLE II COMPUTER GRAPHICS3 PLOT
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50 APPLE II COMPUTER GRAPHICSType t
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52 APPLE II COMPUTER GRAPHICSVocabu
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54 APPLE II COMPUTER GRAPHICScolor.
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56 APPLE II COMPUTER GRAPHICSThis m
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58 APPLE II COMPUTER GRAPHICSmuch l
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60 APPLE II COMPUTER GRAPHICS70 POK
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62 APPLE II COMPUTER GRAPHICS37- 85
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8Hi-Res GraphicsObjectivesAfter rea
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CHAPTER 8-Hl-RES GRAPHICS 67When J
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C..: HAPTER 8-Hl-RES GRAPHICS 69Goi
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CHAPTER 8-Hl-RES GRAPHICS 71Row Add
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CHAPTER 8-Hl-RES GRAPHICS 73The fou
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CHAPTER 8-Hl-RES GRAPHICS 75The row
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CHAPTER 8-Hl-RES GRAPHICS 77Solutio
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CHAPTER 8-Hl-RES GRAPHICS 79b. XX-X
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82 APPLE II COMPUTER GRAPHICSA Bit
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84 -APPLE II COMPUTER GRAPHICSget t
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86 APPLE II COMPUTER GRAPHICSDOTBIT
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88 APPLE II COMPUTER GRAPHICSIn Fig
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90 APPLE II COMPUTER GRAPHICSblue a
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92 APPLE II COMPUTER GRAPHICSHEX HE
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94 APPLE II COMPUTER GRAPHICS50 HGR
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96 APPLE II COMPUTER GRAPHICSone of
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991 111ObjectivesAfter reading Chap
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CHAPTER 10-SHAPING UP 101A closed d
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CHAPTER 10-SHAPING UP 103In the fir
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CHAPTER 10-SHAPING UP 105( (J(J) ha
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CHAPTER 10-SHAPING UP 107as the com
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6 POKE 232,: POKE 233 ,37 REM8 REM
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CHAPTER 10-SHAPING UP 111Sections A
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CHAPTE R 10-SHAPING UP 113DRAW 2 AT
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CHAPTER 10-SHAPING UP 115printed at
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CHAPTER 10-SHAPING UP 117Exercises1
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120 APPLE II COMPUTER GRAPHICS1 REM
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122 APPLE II COMPUTER GRAPHICSLet's
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124 APPLE II COMPUTER GRAPHICSJ28 :
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Page 138 and 139: 130 APPLE II COMPUTER GRAPHICS100 R
Page 140 and 141: 132 APPLE II COMPUTER GRAPHICSAs we
Page 143 and 144: 12Byte-Move ShapesObjectivesAfter r
Page 145 and 146: CHAPTER 12-BYTE-MOVE SHAPES 13729JJ
Page 147 and 148: CHAPTER 12-BYTE-MOVE SHAPES 139l!il
Page 149 and 150: CHAPTER 12-BYTE-MOVE SHAPES 141POKE
Page 151 and 152: CHAPTER 12-BYTE-MOVE SHAPES 1431BYT
Page 153: CHAPTER 12-BYTE-MOVE SHAPES 145Agai
Page 156 and 157: 148 APPLE II COMPUTER GRAPHICSprovi
Page 158 and 159: 150 APPLE II COMPUTER GRAPHICSaroun
Page 160 and 161: 152 APPLE II COMPUTER GRAPHICS3 : 2
Page 162 and 163: 154 APPLE II COMPUTER GRAPHICSdesir
Page 164 and 165: 156 APPLE II COMPUTER GRAPHICSso ma
Page 166 and 167: 158 APPLE II COM PUTER GRAPHICSfigu
Page 168 and 169: 160 APPLE II COMPUTER GRAPHICSHPLOT
Page 170 and 171: 162 APPLE II COMPUTER GRAPHICSset u
Page 172 and 173: 164 APPLE II COMPUTER GRAPHICStoget
Page 174 and 175: 166 APPLE II COMPUTER GRAPHICSThen
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Page 178 and 179: 170 APPLE II COMPUTER GRAPHICS-$960
Page 180 and 181: 172 APPLE II COMPUTER GRAPHICSand i
Page 182 and 183: 174 APPLE II COMPUTER GRAPHICSsome
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Page 189 and 190: GlossaryA particular number that co
Page 191 and 192: GLOSSARY 183HI-RES. High Resolution
Page 193 and 194: GLOSSARY 185SEPARATION. Any one of
Page 195 and 196: Editoi:(s)Hi-Res, 66, 100Low- Res,
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