| 1 | C APFELMAENNCHEN-PROGRAMM, 02.APRIL.2006 PHILIPP HACHTMANN |
| 2 | C INTERMEDIATE VERSION |
| 3 | C |
| 4 | C THIS VERSION SHOULD RUN A BIT FASTER BECAUSE THE SQUARE |
| 5 | C ROOT IS OMMITTED. |
| 6 | C |
| 7 | C SWITCH SETTINGS: |
| 8 | C SENSE-SWITCH 1: IF SET, ASK FOR PARAMETERS |
| 9 | C SENSE-SWITCH 2: IF SET, DON'T PRINT PARAMETERS ON START |
| 10 | C SENSE-SWITCH 3: IF SET, RESTORE PARAMETERS TO DEFAULT VALUES |
| 11 | C |
| 12 | CCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCC |
| 13 | C COMMON BLOCK DECLARATIONS |
| 14 | C |
| 15 | INTEGER MAXI,WIDTH,CR,LF,POSI,NEGA |
| 16 | COMMON /PARAM2/MAXI,WIDTH,CR,LF,POSI,NEGA |
| 17 | C |
| 18 | REAL LOWX,LOWY,HIGHX,HIGHY,MAXVAL,XSTEP,YSTEP |
| 19 | COMMON /PARAM1/LOWX,LOWY,HIGHX,HIGHY,MAXVAL,XSTEP,YSTEP |
| 20 | C |
| 21 | INTEGER INIT |
| 22 | COMMON /PARAM3/INIT |
| 23 | C |
| 24 | CCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCC |
| 25 | C START MESSAGE |
| 26 | 100 WRITE (1,10) |
| 27 | 10 FORMAT (46HMANDELBROT-DEMO 3RC1 02.04.2006, PH. HACHTMANN, |
| 28 | + 20H - PRELIMIMARY ISSUE) |
| 29 | C |
| 30 | CCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCC |
| 31 | C CONFIGURATION |
| 32 | CCCCCC RESET DO DEFAULT VALUES? |
| 33 | 110 CALL SSWTCH(3,I) |
| 34 | IF (I.EQ.1) CALL RST |
| 35 | C |
| 36 | CCCCCC ON THE FIRST START OR IF DESIRED |
| 37 | IF(INIT.EQ.0) CALL STVAL |
| 38 | C |
| 39 | CCCCCC DO WE HAVE TO ASK FOR PARAMETERS? |
| 40 | CALL SSWTCH(1,I) |
| 41 | IF (I.EQ.1) CALL GETCFG |
| 42 | C |
| 43 | CCCCCC OUTPUT SETTINGS? |
| 44 | CALL SSWTCH(2,I) |
| 45 | IF(I.EQ.2) CALL OUTCFG |
| 46 | C |
| 47 | WRITE (1,55) |
| 48 | 55 FORMAT (1H0) |
| 49 | C |
| 50 | CALL CALC2 |
| 51 | C |
| 52 | WRITE(1, 60) |
| 53 | 60 FORMAT (5HREADY) |
| 54 | C |
| 55 | CCCCCC BREAK WITH 7 in A REG, THEN START OVER |
| 56 | C CALL PWAIT |
| 57 | PAUSE 7 |
| 58 | GO TO 100 |
| 59 | END |
| 60 | C END OF MAIN PROGRAM |
| 61 | C |
| 62 | CCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCC |
| 63 | CCCCCC THE MANDELBROT SET CALCULATION |
| 64 | SUBROUTINE CALC2 |
| 65 | C |
| 66 | INTEGER MAXI,WIDTH,CR,LF |
| 67 | COMMON /PARAM2/MAXI,WIDTH,CR,LF |
| 68 | REAL LOWX,LOWY,HIGHX,HIGHY,MAXVAL,XSTEP,YSTEP |
| 69 | COMMON /PARAM1/LOWX,LOWY,HIGHX,HIGHY,MAXVAL,XSTEP,YSTEP |
| 70 | REAL CMPAVL |
| 71 | REAL ZR,ZI,ZRN |
| 72 | REAL X,Y |
| 73 | INTEGER COUNT |
| 74 | C |
| 75 | CCCCCC ENTER THE CALCULATION |
| 76 | 299 CMPVAL=MAXVAL*MAXVAL |
| 77 | X=LOWX |
| 78 | Y=HIGHY |
| 79 | C |
| 80 | CCCCCC EINSTIEG IN DEN AKTUELLEN PUNKT |
| 81 | 300 COUNT=0 |
| 82 | ZR=0.0 |
| 83 | ZI=0.0 |
| 84 | C |
| 85 | CCCCCC HIER DER ITERIERTE TEIL |
| 86 | C |
| 87 | 400 ZRN=ZR*ZR-ZI*ZI+X |
| 88 | ZI=2.0*ZR*ZI+Y |
| 89 | ZR=ZRN |
| 90 | C |
| 91 | IF ((ZR*ZR+ZI*ZI).GE.CMPVAL) GO TO 410 |
| 92 | COUNT=COUNT+1 |
| 93 | IF (COUNT.GE.MAXI) GO TO 410 |
| 94 | GO TO 400 |
| 95 | C |
| 96 | CCCCCC PUNKT FERTIG |
| 97 | 410 NOUT=32 |
| 98 | C IF (COUNT.GE.8) NOUT=46 |
| 99 | C IF (COUNT.GE.23) NOUT=43 |
| 100 | C IF (COUNT.EQ.MAXI) NOUT=64 |
| 101 | IF (COUNT.GE.8) NOUT=46 |
| 102 | IF (COUNT.GE.23) NOUT=43 |
| 103 | IF (COUNT.EQ.MAXI) NOUT=64 |
| 104 | |
| 105 | 411 CALL PCHAR(NOUT) |
| 106 | GO TO 500 |
| 107 | C |
| 108 | CCCCCC NEUEN PUNKT MACHEN |
| 109 | 500 X = X + XSTEP |
| 110 | CCCCCC ZEILE NOCH NICHT VOLL? |
| 111 | IF (X.LE.HIGHX) GO TO 300 |
| 112 | CCCCCC X AN ANFANG SETZTEN, CR+LF DRUCKEN |
| 113 | X = LOWX |
| 114 | CALL PCHAR(CR) |
| 115 | CALL PCHAR(LF) |
| 116 | CCCCCC Y WEITERRUECKEN - NEGATIV WEIL WIR VON OBEN KOMMEN |
| 117 | Y=Y-YSTEP |
| 118 | IF (Y.GE.LOWY) GO TO 300 |
| 119 | C |
| 120 | CCCCCC HIER IST DAS BILD FERTIG. |
| 121 | RETURN |
| 122 | END |
| 123 | CCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCC |
| 124 | CCCCCC STARTWERTE AUSFUELLEN |
| 125 | SUBROUTINE STVAL |
| 126 | C |
| 127 | INTEGER MAXI,WIDTH,CR,LF |
| 128 | COMMON /PARAM2/MAXI,WIDTH,CR,LF |
| 129 | REAL LOWX,LOWY,HIGHX,HIGHY,MAXVAL,XSTEP,YSTEP |
| 130 | COMMON /PARAM1/LOWX,LOWY,HIGHX,HIGHY,MAXVAL,XSTEP,YSTEP |
| 131 | INTEGER INIT |
| 132 | COMMON /PARAM3/INIT |
| 133 | C |
| 134 | CR = 13 |
| 135 | LF = 10 |
| 136 | WIDTH = 68 |
| 137 | MAXI = 60 |
| 138 | MAXVAL = 2.0 |
| 139 | LOWX =-1.48 |
| 140 | HIGHX = 0.5 |
| 141 | LOWY =-1.2 |
| 142 | HIGHY = 1.2 |
| 143 | INIT = 1 |
| 144 | C |
| 145 | CCCCCC SCHRITTWEITEN AUSRECHNEN |
| 146 | XSTEP = (HIGHX-LOWX)/FLOAT(WIDTH) |
| 147 | YSTEP = 2.0 * XSTEP |
| 148 | C |
| 149 | WRITE (1,1500) |
| 150 | 1500 FORMAT (20HDEFAULT VALUES USED.) |
| 151 | RETURN |
| 152 | END |
| 153 | C |
| 154 | C |
| 155 | CCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCC |
| 156 | CCCCCC EINSTELLUNGEN EINLESEN |
| 157 | SUBROUTINE GETCFG |
| 158 | C |
| 159 | INTEGER MAXI,WIDTH,CR,LF |
| 160 | COMMON /PARAM2/MAXI,WIDTH,CR,LF |
| 161 | REAL LOWX,LOWY,HIGHX,HIGHY,MAXVAL,XSTEP,YSTEP |
| 162 | COMMON /PARAM1/LOWX,LOWY,HIGHX,HIGHY,MAXVAL,XSTEP,YSTEP |
| 163 | C |
| 164 | REAL XIN1,XIN2,YIN1,YIN2 |
| 165 | C |
| 166 | WRITE(1,11) |
| 167 | READ (1,16) XIN1 |
| 168 | WRITE(1,12) |
| 169 | READ (1,16) XIN2 |
| 170 | WRITE(1,13) |
| 171 | READ (1,16) YIN1 |
| 172 | WRITE(1,14) |
| 173 | READ (1,16) YIN2 |
| 174 | WRITE(1,15) |
| 175 | READ (1,17) MAXI |
| 176 | C |
| 177 | 11 FORMAT(14H X FROM : ) |
| 178 | 12 FORMAT(14H TO : ) |
| 179 | 13 FORMAT(14H Y FROM : ) |
| 180 | 14 FORMAT(14H TO : ) |
| 181 | 15 FORMAT(14H MAXIT (I3): ) |
| 182 | 16 FORMAT(F12.0) |
| 183 | 17 FORMAT(I3) |
| 184 | C |
| 185 | CCCCCC EVENTUELL STARTWERTE TAUSCHEN: |
| 186 | CCCCCC WENN XIN2 GROESSER IST OK, ANSONSTEN TAUSCHEN |
| 187 | 150 I F(XIN2.GT.XIN1) GO TO 200 |
| 188 | TEMP = XIN1 |
| 189 | XIN1 = XIN2 |
| 190 | XIN2 = TEMP |
| 191 | C |
| 192 | CCCCCC WENN YIN2 GROESSER IST OK, ANSONSTEN TAUSCHEN |
| 193 | 200 IF(YIN2.GT.YIN1) GO TO 201 |
| 194 | TEMP = YIN1 |
| 195 | YIN1 = YIN2 |
| 196 | YIN2 = TEMP |
| 197 | C |
| 198 | CCCCCC WERTE UEBERNEHMEN |
| 199 | 201 LOWX = XIN1 |
| 200 | HIGHX = XIN2 |
| 201 | LOWY = YIN1 |
| 202 | HIGHY = YIN2 |
| 203 | C |
| 204 | CCCCCC SCHRITTWEITEN AUSRECHNEN |
| 205 | XSTEP = (HIGHX-LOWX)/FLOAT(WIDTH) |
| 206 | YSTEP = 2.0 * XSTEP |
| 207 | C |
| 208 | RETURN |
| 209 | END |
| 210 | C |
| 211 | C |
| 212 | CCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCC |
| 213 | CCCCCC EINSTELLUNGEN AUSGEBEN |
| 214 | SUBROUTINE OUTCFG |
| 215 | C |
| 216 | INTEGER MAXI,WIDTH,CR,LF |
| 217 | COMMON /PARAM2/MAXI,WIDTH,CR,LF |
| 218 | REAL LOWX,LOWY,HIGHX,HIGHY,MAXVAL,XSTEP,YSTEP |
| 219 | COMMON /PARAM1/LOWX,LOWY,HIGHX,HIGHY,MAXVAL,XSTEP,YSTEP |
| 220 | C |
| 221 | WRITE (1,20) |
| 222 | 20 FORMAT (9HSETTINGS:) |
| 223 | WRITE (1,30) LOWX, HIGHX |
| 224 | 30 FORMAT (12HX-WERTE VON ,1F8.5,5H BIS ,1F8.5) |
| 225 | WRITE (1,40) LOWY, HIGHY |
| 226 | 40 FORMAT (12HY-WERTE VON ,F8.5,5H BIS ,F8.5) |
| 227 | WRITE (1,50) MAXI, MAXVAL, XSTEP, YSTEP, WIDTH |
| 228 | 50 FORMAT ( 4HMAX:,I3, |
| 229 | + 8H MAXVAL:,F8.5, |
| 230 | + 7H XSTEP:,F8.5, |
| 231 | + 7H YSTEP:,F8.5, |
| 232 | + 7H WIDTH:,I2) |
| 233 | RETURN |
| 234 | END |
| 235 | C |
| 236 | C |
| 237 | CCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCC |
| 238 | CCCCCC RUECKSETZEN |
| 239 | SUBROUTINE RST |
| 240 | C |
| 241 | INTEGER MAXI,WIDTH,CR,LF |
| 242 | COMMON /PARAM2/MAXI,WIDTH,CR,LF |
| 243 | C |
| 244 | WRITE(1,245) |
| 245 | 245 FORMAT(25HPARAMETER RESET REQUESTED) |
| 246 | INIT=0 |
| 247 | RETURN |
| 248 | END |
| 249 | C |
| 250 | C |
| 251 | CCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCC |
| 252 | C PRELOAD VALUE OF INIT |
| 253 | BLOCK DATA |
| 254 | INTEGER INIT |
| 255 | COMMON /PARAM3/INIT |
| 256 | DATA INIT/0/ |
| 257 | END |
| 258 | CCCCCCCCCCCCCCCCCCCCCCCC |
| 259 | $0 |