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Path: news.larc.nasa.gov!amiga-request From: amiga-request@ab20.larc.nasa.gov (Amiga Sources/Binaries Moderator) Subject: v91i017: Mandel 1.0 - yet another mandelbrot, Part01/04 Reply-To: dm@stekt.oulu.fi (Hannu Helminen ti) Newsgroups: comp.sources.amiga Message-ID: <comp.sources.amiga:v91i017@ab20.larc.nasa.gov> Date: 18 Feb 91 22:25:42 GMT Approved: tadguy@uunet.UU.NET (Tad Guy) X-Mail-Submissions-To: amiga@uunet.uu.net X-Post-Discussions-To: comp.sys.amiga.misc Submitted-by: dm@stekt.oulu.fi (Hannu Helminen ti) Posting-number: Volume 91, Issue 017 Archive-name: applications/mandel-1.0/part01 [ uuencoded executable, icons, and library enclosed ...tad ] [ also, one source file was split to allow for posting. ...tad ] This is yet another mandelbrot for amiga, but this one is quite fast. It also has a cute graphical user interface. Freely distributable. Source included. Author: Hannu Helminen dm@stekt.oulu.fi #!/bin/sh # This is a shell archive. Remove anything before this line, then unpack # it by saving it into a file and typing "sh file". To overwrite existing # files, type "sh file -c". You can also feed this as standard input via # unshar, or by typing "sh <file", e.g.. If this archive is complete, you # will see the following message at the end: # "End of archive 1 (of 4)." # Contents: iff.library.uu mandel.doc mandel.doc.uu mandel.info.uu # mandel.uu source source/gui.asm.ae source/iff.i source/macros.i # source/mbrot.i source/pipe.asm # Wrapped by tadguy@ab20 on Mon Feb 18 17:25:39 1991 PATH=/bin:/usr/bin:/usr/ucb ; export PATH if test -f 'iff.library.uu' -a "${1}" != "-c" ; then echo shar: Will not clobber existing file \"'iff.library.uu'\" else echo shar: Extracting \"'iff.library.uu'\" $3334 characters$ sed "s/^X//" >'iff.library.uu' <<'END_OF_FILE' Xbegin 666 iff.library XM```#\P`````````#``````````(```(>``````````````/I```"'F`$0TA7M XM(4/Z`(`L>``$3J[^:"Q`3J[_Q"(`0?H`/B0(=BU.KO_0(DXL>``$3J[^8G`%Q XM3G5*_````#0```((@!`)`0```$X```!:````E&EF9BYL:6)R87)Y`$E&1B`Q; XM-BXQ("@P,2U$96,M,3DX."D@8GD@0VAR:7-T:6%N($$N(%=E8F5R"@!D;W,N) XM;&EB<F%R>0`````Z````I````.0```$0```!/@```8H```'"```"!@```@@`G XM``+````"W@```P0```,4```#6```!&(```1Z```(`@``""````(0_____^``? XM``@)`,````H```!.X```#@8`T```%``0T```%@`!P```&````%H`````2.?`9 XMQ"I`*T@`(D/Z_VQP'TZN_=@K0``H0>T`+""(6)!"J``$(4@`"$S?(P-.=4CGJ XM0.8J3F$`!GYF/'`6<@$L>``$3J[_.DJ`9RPD0)/)3J[^VB5```Y"J@`20>T`+ XM+")*3J[_"E)M`"`(K0`#`"8@#4S?9P).=7``8/9(YP`F*DYA``8R9Q0D0")`+ XM+'@`!$ZN_P1P%B)*3J[_+DS?9`!P`%-N`"!F"@@N``,`)F<"80).=4CG(`8J_ XM3DIM`"!G"@CM``,`)G``8"HB32QX``1.KO\$(FT`*$ZN_F(D+0`B<``B33`M& XM`!"2P-!M`!).KO\N(`),WV`$3G5(YSXF?/]@!DCG/B8L`"I.3^__]'H`(@@DR XM/````^TL;0`H3J[_XB@`9@1Z$&!P(@0D#W8,3J[_U@R71D]236<$>A-@4"(&) XM:@YR`0RO.%-66``(9@)R`W0,)B\`!-2#(`(L>``$3J[_.DJ`9@1Z$F`D)$`D_ XMPB($)`I0@EB"+&T`*$ZN_]9*@&H$>A%@"$S7``=(T@`'(@0L;0`H3J[_W"`%M XM9P9A``5$8`9A``4R(`I/[P`,3-]D?$YU2.<`!BI.(`EG"B`A+'@`!$ZN_RYA1 XM``4.3-]@`$YU(&D`!$/I``S1R;"19Q0B*0`$4H$(@0``0_$8"+/(9>J3R2`)* XM3G4@/$)-2$1A`/_29P)0@$YU2.<X("1((#Q#34%080#_O$J`9RH@0%B(*!B)8 XM_``#2,0@!%.$<@!T`'8`$A@4&!88Z4GH2X)"@D,TP5',_^A,WP0<3G5(YS\^' XM3^_^M"I.)D@H20RL24Q"30`(9P9P&&```+)A`/^,9@9P&6```*8D0$SK`/\`S XM"$C7`/]T`!0J``BT*P`%8P9P&V```(@@/$)/1%DB3&$`_S1F!'`:8'0@0%B(T XM(!A)\`@`$"H`"F8&3?H`<F`.#````6<$<!Q@5$WZ`&A^``PJ``$`"5?'>``X# XM$MA\``_FC`B$``!Z`#H3?``\*P`"4T930C8")$\@!")23I;;FE'+__9*!V<(Z XM(`1#[P`@3I:QS&0$4<[_WF$``\)@!&$``\A/[P%,3-]\_$YU$MA1R/_\3G4_B XM`G(`$AAK"A+84T!1R?_Z8`Q$`108$L)30%')__I*0&[@-!].=4CG.`!R`'0`U XM-A$X*0`"80``"$S?`!Q.=4CG/SZ>_`$,*DXL""9)*$\_00$$/T(!!@B#```_9 XM0P$(/T0!"BC\1D]237X\*,<H_$E,0DTH_$)-2$1^%"C'&4``"D(L``E"+``+V XM0FP`#$*L``0Y?`H+``X9:P`%``CG2SB#.4,`$#E$``(Y1``2+WQ#04U'`"A^% XM!"]'`"P@3&$``UH(K``'``IG!`C```LO0``P+WS____X`#@@"F=$0^\`-"+\C XM0TU!4'`!<@$2*P`%XV@T`,#\``-4@`)`__PBP%-",!KI2!-```+H2`(``/`32 XM0``!Z$@"``#P$H!625'*_^(B!B0\```#[BQM`"A.KO_B+@!G``"P("\`.-&OS XM``0B!R0/=D36KP`X+&T`*$ZN_]!*@&L``)!*+``*9@9A``"B8`1A``$D2H!KV XM>B8`5H/&/`#\+T,!`->O``26@$J#9Q0B!T*G)`\L;0`H3J[_T%B/2H!K4"('X XM=`!V_RQM`"A.KO^^(@<D#W8\UJ\`."QM`"A.KO_02H!K+$'O`/P@O$)/1%DBS XM!R0(=@@L;0`H3J[_T$J`:Q`B!RQM`"A.KO_<80`!R&`2(@=G""QM`"A.KO_</ XM<!1A``'`WOP!#$S??/Q.=4CG/CA)[P`DGOP`)#`L`0AR`!(K``7`P3(L`0K`U XMP2]``"`R+`$&PM-P`#`L`032@$'K``@B3W`')!C4@2+"4<C_^'8`>`!Z`#H3# XM%BL`!39#-BP!"#@L`0I31%-+)$\L"R(')!(L;0`H3J[_T$J`:P[;FE'._^Q1V XMS/_D("\`(-[\`"1,WQQ\3G5(YSXX2>\`))[\`21"KP$@,BP!!L+3<``P+`$$_ XMTH!!ZP`((D]P!R08U($BPE'(__AV`'@`>@`Z$Q8K``4F0S8L`0@X+`$*4T13; XMBR1/+`LP`R!20^\`(&$VT:\!("('0^\`("0)+P,F`"QM`"A.KO_0)A]*@&L.X XMVYI1SO_44<S_S"`O`2#>_`$D3-\<?$YU2.<P,$7P``!V`&%,L'P``VT05(,2` XM$-#`4T!$`!+`$L%@*B9(=`!2`FL04HBQRFP,82:P?``#;>Y@`G1_($O6@E*#B XM4T(2PA+84<K__+'*;;H@`TS?#`Q.=2$<`$2&+(89@RP?`"`;`920+'*;?`@J XM7TYUD\DL>``$3J[^VB(`("T`+"!`(!!G"+*H``YF]"`(3G5AWF<$0J@`$G`!8 XM3G4O`B0`8<YG!"%"`!(D'W``3G5(YP`&*DYANDJ`9PX@*``20J@`$DS?8`!.3 XM=7#_8/8O"B1)(#Q#04U'80#ZLF<(($`@*``(8!@B2F$`^LAG$"!`81`,*``&) XM``AM!`C```LD7TYU<``,*``$``AN"@Q0`8!O!`C```\,:`$8``)M!`C```).Y XM=0`````#[````!D`````````-@```#H```!"````1@```$H```"8````G```S XM`*````"D````J````*P```"P````M````+@```"\````P````,0```#(````\ XMS````-````#4````V````-P```#N```!"`````````/R```#Z@````````/RR X,```#ZP````````/RC X`` Xend Xsize 2352 END_OF_FILE if test 3334 -ne `wc -c <'iff.library.uu'`; then echo shar: \"'iff.library.uu'\" unpacked with wrong size! fi # end of 'iff.library.uu' fi if test -f 'mandel.doc' -a "${1}" != "-c" ; then echo shar: Will not clobber existing file \"'mandel.doc'\" else echo shar: Extracting \"'mandel.doc'\" \(14242 characters$ sed "s/^X//" >'mandel.doc' <<'END_OF_FILE' X X----------------------------------------------------------------------------- X X Version history X X v0.50 First numbered version. Most bugs I've found are fixed. X v0.60 Workbench interface added. X v1.00 First public release. X X----------------------------------------------------------------------------- X X BUGS X X - Not very smart handling of AUTOCRAWL X - If invoked with too little memory, 56 bytes will mysteriously X disappear X - Window title bar may get trashed if moved too high X X----------------------------------------------------------------------------- X X Copying licence: X X This program is copyright 1990 by Hannu Helminen. However, you may X freely distribute it provided that this package is left intact and no X charge is taken. You are also licenced to use parts of the code in your X programs provided that X X 1) New versions are clearly marked as such X 2) You give credit where credit is due (me) X X I will not guarantee anything about this program. It seems quite X reliable to me, though. X X----------------------------------------------------------------------------- X X Package includes: X X mandel Main proggie X mandel.doc This file X iff.library Used when saving pictures. Place in libs: directory. X X source/gui.asm Graphical user interface X source/brot.asm This takes care of the actual drawing X source/pipe.asm A package of fifo routines, as needed by brot X X source/macros.i General macros X source/mbrot.i brot-specific include file, including my own structure X source/iff.i Needed to use iff.library X X----------------------------------------------------------------------------- X X X X OVERVIEW X X There are quite a few Mandelbrot programs for Amiga, perhaps to the X extent that I should have named my program "yamb" instead of "mandel". X (Yet Another MandelBrot) X X I hope though that there are enough reasons to satisfy the existence of X this program. Namely, it was designed with three goals in mind: first, X speed. Secondly, speed. And last but not least, speed. X X Of course, most Mandelbrot programs draw nice-looking pictures, if only X you can wait for ten minutes or even more for them to be complete. X Increase the number of iterations and you will have to wait for hours, X unless you are one of those lucky guys with a 60-MHz 68040-equipped X A3000's... The main reason for that slowness is the floating point math X most programs use. X X The first version of this program was quite ugly: coded partly in X Basic, partly in 68000 machine language, it was a mess of a code. Its X optimized core used 32-bit fixed point math but was still relatively X slow. After writing it, I forgot it for years. X X Then someone in alt.fractals told about a new algorithm called contour X crawling that produces fast images of Mandelbrot set. I adopted the X idea and rewrote the program to use it, this time completely in machine X language. It turned out to be fast (within minutes); that is because it X does not need to iterate all pixels. And the drawing was visually X attractive, so it suits well for interactive use. X X After imploying a 16-bit iteration for lower resolutions, I found I had X written the fastest Mandelbrot program I had ever seen. (Ok, forget X that little transputer...) I cannot pretend to have seen even all Amiga X ones, though, so there may already be a faster one. If so, please tell X me that all this code was in vain. X X X X USAGE X X Start from CLI by typing `mandel', or click the icon in Workbench. The X program will then immediately begin to draw the Mandelbrot set. Various X options exists, however, to modify how, where and when the image will X be drawn. Use CTRL-C to abort a draw in progress, and another CTRL-C to X abort the program. X X From CLI: Enter the options after the command, e.g. X X mandel -i1000 -j -sram:Picture X X Type `mandel ?' to see a brief summary of the options. X X From Workbench: Select mandel icon, select `info' from the `Workbench' X menu and enter options in the TOOL TYPES array, e.g. X X I=100 X FLAGS=j X SAVE=ram:Picture X X X The options are listed below. # is a shorthand for a number. X X CLI WorkBench X X -x# X=# These determine the point (z = x + yi) in the complex X -y# Y=# plane you will see right in the center of your monitor. X They are in the range -4 to 4. X X -m# M=# This is a logarithmic quantity that represents the X magnification of the image. 2^(-m) determines the X distance between two lo-res pixels in complex plane. X Default is 6, maximum is 29. X X -i# I=# Iterations. Self-explanatory? No? The greater the X number, the more accurate pictures mandel will draw. X For further information, refer to APPENDIX A. X The maximum number of iterations is 65535. X X -jx# JX=# These determine a constant (c = jx + jy i) that is used X -jy# JY=# when iterating a Julia set. Each c will produce a X different set. See APPENDIX A. These, too, have a range X from -4 to 4. X X -sname SAVE=name This determines a filename for saved pictures. X X If mandel is operated interactively (g flag is set), X the user can save pictures by pressing CTRL S. The X standard filename is `mandel.picture', but can be X overridden by this option. If many pictures are saved, X a number is added at the end to distinguish the files X from each other. X X If mandel is in non-interactive use (x flag is set), X this options specifies that the image must be saved X upon exit, and determines the name for it. Note: if X this option does not exists, no image will be saved. X X -l FLAGS=l Normally mandel determines itself whether it should use X -h FLAGS=h 16 or 32 bits of precision, as denoded by (a). There X -a FLAGS=a are certain, limited circumstances when you need to set X the precision explicitely to 16 (l) or 32 (h) bits. In X particular, Julia sets that have a complex structure X near origo may produce inaccurate images unless 32 bits X are used. X X -c FLAGS=c You can enable (c) or disable (w) the crawling if you X -w FLAGS=w wish, default is (p), which means to crawl whenever X -p FLAGS=p possible. Currently non-connected Julia sets are not X crawled because they *could* produce inaccurate X results. Future versions might add more sanity checks X to this. X X -x FLAGS=x When the (x) flag is used, the programs exits X -g FLAGS=g immediately after the first image is drawn. Default is X (g) which means to prompt the user with a X requester-like window (See below). The x flag is X intented for non-interactive use, for example X continuous zooms that are achieved via scripts. X X -m FLAGS=m Whether you want to draw Julia (j) or Mandelbrot (m) X -j FLAGS=j sets. See APPENDIX A. X X X NOTE: In Workbench, if multiple FLAGS are used, they *must* be X combined in a single FLAGS entry, e.g. X X FLAGS=apgx X X In CLI, flags *must not* be combined, so do not try `-apgx' X instead of `-a -p -g -x'. X X X X GRAPHICAL USER INTERFACE X X When mandel is invoked with the -g option, after the first image is X drawn, a requester-like window will pop in. A grid will also be X displayed, indicating the centerpoint and borders of the next image. X Screen title bar will show coordinates of the mouse position. X X You can then set the centerpoint by clicking in the image or entering a X value in the string gadgets labeled `X' and `Y'. Magnification and X iterations can be set in the gadgets `M' and `I', respectively. X X A new quantity can be set using the `Z' gadget: zooming. As its name X implies, this determines which portion of the current image will be X shown in the next one. This is a signed number that will be added to X magnification, thus set z=0 for 100% zooming, z=1 for 50%, z=-1 for X 200% etc. This can also be set by pressing the right mouse button and X moving it over the image. X X The program draws images in one of three modes: ZOOM, DRAW and RESET. X ZOOM means zooming to the size shown by the grid. DRAW will take the X numbers from the requester and draw according to them (used for example X to redraw the same picture, or to quickly enter a very deep X magnification level) X X As setting zoom in DRAW mode makes as little sense as setting X magnification in ZOOM mode, these modifications will immediately change X the draw mode, too. The third mode, RESET, will return the X magnification and centerpoint to normal. The mode can be changed by X respective gadgets. X X Clicking MAND or JULIA will change the set type to Mandelbrot or Julia. X The magical constant c for Julia sets (See APPENDIX A) can be set as X follows: Make sure you are in MAND mode. Then select the point c by X either clicking on the image or entering it in the X/Y-gadgets. Then X click JULIA gadget and select whatever centerpoint you wish your image X to have. X X Alas, window close gadget only removes the requester window, screen X title and grid in order to let you view the image. Normal operation is X resumed by pressing either mouse button. X X Quit the program by double-clicking the QUIT gadget or draw a new set X by double-clicking either in the image or one of the gadgets ZOOM, X DRAW, RESET. X X X X AUTHOR X X Hannu "The DM" Helminen X Perkkio X 85900 REISJARVI X FINLAND X X dm@stekt.oulu.fi (for the next few years, I hope) X X X X THANKS X X Thanks to X X T. Saarinen for extensive beta-testing X X 'LS' Hautamaki for not-so-extensive testing X X J.M. Jarre who was in great help during long nights of programming X X B. Mandelbrot who invented the set that carries his name X X X X X X APPENDIX A: A mathematical definition of Mandelbrot and Julia sets. X X X A point z = x + y i is said to be in the Mandelbrot set if X 0 X X 2 X z = z + c does not go to +-oo (infinity) when n -> oo X n+1 n X ____ X where c = z . ( i = ,/ -1 so z, c are complex numbers ) X 0 X X X A point z = x + y i is said to be in the Julia set c if X 0 X X 2 X z = z + c does not -> oo when n -> oo X n+1 n X X X NOTE: There are an infinite number of Julia sets, each corresponding to X one value of c. c is also related to a point in the Mandelbrot set. X (originally the Mandelbrot set was the set of c's that will produce a X *connected* Julia set.) Note also that the Julia set looks similar to X the surroundings of that point in the Mandelbrot set from which the X Julia set was derived. X X Becausese these calculations would take a considerable amount of time X with any contemporary computer, they are approximated by a finite X number of iterations (typically 100 or more). An usual test for a point X z going to infinity is to test whether or not | z | < 2. And since few X computers can calculate with complex numbers, we can rewrite the X equation (z -> z**2 + c) in a C-ish style program using only real X variables z = x + y i: X X i = max_iterations; X X while (i > 0 && x**2 + y**2 < 4) { X X tmpx = x**2 - y**2 + x0; X tmpy = 2 x y + y0; X x = tmpx; X y = tmpy; X i--; X X } X X if (i=0) inside (); else outside(); X X If you are a first-time user of any Mandelbrot program, I might suggest X that you study the edge of the black area, because that is where the X most interesting parts of the set are. (The coloured areas do not X actually belong to the set, and the interior is, of course, all X black...) X X X X APPENDIX B: The contour crawling method X X This method works by finding an edge of an area of uniform color, then X crawling its way through the edge until starting point is reached. The X interior is then assumed to be of same color. This is of course true X for the ideal set, but because the image is sampled to a finite set of X pixels, errors *may* occur. (Haven't seen one so far, though.) X X Non-connected Julia sets must not be crawled in the strict mathematical X sense. However, most of the time mandel produces correct pictures even X then. So it is quite safe to use the -c option of mandel. X X X X APPENDIX C: Compilation X X Assuming you have a68k v2.61 or higher and blink, the following X steps are needed to compile a working executable of mandel: X X a68k gui.asm -q500 -iinclude: X a68k brot.asm -q200 -iinclude: X a68k pipe.asm -q100 X blink gui.o brot.o pipe.o to mandel lib amiga.lib X X where include: is assigned to standard assembly include directory. X X NOTE: if you have a68k v2.42, gadget arrow images will not be marked as X going to CHIP ram. This will give you strange-looking images unless: X X 0) You have only CHIP ram (poor chap) X X 1) You use FastMemFirst, FixHunk, ATOM etc. kludges X X 2) Modify the code: allocate some CHIP-mem and CopyMem() the images X there. This is a kludge, however. X X 3) Get v2.62 somewhere (e.g. disk 314 from Fred Fish's X wonderful collection.) X X X X APPENDIX D: How to use brot with your own programs? X X Just pass the address of a valid mb-structure in a0 (see mbrot.i), X `jsr MandelBrot' and `XREF MandelBrot' somewhere in your code and X (b)link your proggie with brot.o and pipe.o. The RastPort you use X *must* have valid TmpRas and AreaInfo structures attached to it. 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Xtmpx ds.w 1 Xtmpy ds.w 1 X X* Huh! My very own structure. XMyMandelBrot: X ds.b mb_SIZEOF XMyTmpRas: ds.b tr_SIZEOF XMyAreaInfo: ds.b ai_SIZEOF XIOreq: ds.b IOTV_SIZE XMsgPort: ds.b MP_SIZE X Xinter: ds.b 1 ; Boolean: are we interactive Xerror: ds.b 1 ; general error code Xmethod: ds.b 1 ; method of zooming (ZOOM, REDRAW or RESET) Xisdrawn: dc.b 1 ; Boolean: is grid drawn? Xsaveit: dc.b 1 ; Boolean: do we have to save picture? X end X END_OF_FILE if test 546 -ne `wc -c <'source/gui.asm.ae'`; then echo shar: \"'source/gui.asm.ae'\" unpacked with wrong size! fi # end of 'source/gui.asm.ae' fi if test -f 'source/iff.i' -a "${1}" != "-c" ; then echo shar: Will not clobber existing file \"'source/iff.i'\" else echo shar: Extracting \"'source/iff.i'\" $1448 characters$ sed "s/^X//" >'source/iff.i' <<'END_OF_FILE' X* Assembler include file for the iff library X* by Christian A. Weber, Zurich/Switzerland V16.1 01-Dec-88 X X XREF _IFFBase X XIFFVERSION: EQU 16 X XIFF: MACRO X movea.l _IFFBase,a6 X jsr %1(a6) X ENDM X X X*************** L I B R A R Y - O F F S E T S **************************** X XOpenIFF: equ -30 ; (filename) (A0) XCloseIFF: equ -36 ; (ifffile) (A1) XFindChunk: equ -42 ; (ifffile,chunkname) (A1,D0) XGetBMHD: equ -48 ; (ifffile) (A1) XGetColorTab: equ -54 ; (ifffile,colortable) (A1/A0) XDecodePic: equ -60 ; (ifffile,bitmap) (A1/A0) XSaveBitMap: equ -66 ; (name,bmap,ctab,crmd) (A0-A2,D0) XSaveClip: equ -72 ; (name,bmap,ctab,crmd,x,y,w,h) (A0-A2,D0-D4) XIffError: equ -78 ; () () XGetViewModes: equ -84 ; (ifffile) (A1) XNewOpenIFF: equ -90 ; (filename,memtype) (A0,D0) X X X*************** F E H L E R - C O D E S ********************************** X XIFF_BADTASK: equ -1 ; Fehler-Abfrage von falschem Task! X XIFF_CANTOPENFILE: equ 16 ; Datei existiert nicht XIFF_READERROR: equ 17 ; Fehler beim Einlesen der Datei XIFF_NOMEM: equ 18 ; zuwenig Speicher um Datei zu laden XIFF_NOTIFF: equ 19 ; Datei ist kein IFF-File XIFF_WRITEERROR: equ 20 ; Fehler beim schreiben X XIFF_NOILBM: equ 24 ; kein ILBM-File XIFF_NOBMHD: equ 25 ; BMHD-Chunk nicht gefunden XIFF_NOBODY: equ 26 ; BODY-Chunk nicht gefunden XIFF_TOOMANYPLANES: equ 27 ; Bild hat mehr Planes als BitMap XIFF_UNKNOWNCOMPRESSION: equ 28 ; Unbekannter Kompressions-Typ X END_OF_FILE if test 1448 -ne `wc -c <'source/iff.i'`; then echo shar: \"'source/iff.i'\" unpacked with wrong size! fi # end of 'source/iff.i' fi if test -f 'source/macros.i' -a "${1}" != "-c" ; then echo shar: Will not clobber existing file \"'source/macros.i'\" else echo shar: Extracting \"'source/macros.i'\" $349 characters$ sed "s/^X//" >'source/macros.i' <<'END_OF_FILE' X* \0 should be the suffix. Hope this works. X Xbhs macro X bcc.\0 \1 X endm X Xblo macro X bcs.\0 \1 X endm X Xpush macro X movem.l \1,-(sp) X endm X Xpull macro X movem.l (sp)+,\1 X endm X XBase macro X move.l _\1Base,a6 X endm X XCall macro X xref _LVO\1 X jsr _LVO\1(a6) X endm X END_OF_FILE if test 349 -ne `wc -c <'source/macros.i'`; then echo shar: \"'source/macros.i'\" unpacked with wrong size! fi # end of 'source/macros.i' fi if test -f 'source/mbrot.i' -a "${1}" != "-c" ; then echo shar: Will not clobber existing file \"'source/mbrot.i'\" else echo shar: Extracting \"'source/mbrot.i'\" $1659 characters$ sed "s/^X//" >'source/mbrot.i' <<'END_OF_FILE' X X IFND EXEC_TYPES_I X INCLUDE "exec/types.i" X ENDC X X* signed 32-bit fixed point, scaled by 2^29 (range -4 .. 4) XFIXED MACRO X LONG \1 X ENDM X X STRUCTURE mbrot,0 X X* Rastport image will be drawn to X APTR mb_RastPort X X* These define z = x0 + y0 i that will be mapped to upper lefthand X* corner of Rastport (that is (0,0) NOT (x1,y1)) X FIXED mb_x0 X FIXED mb_y0 X X* Deltas in both directions, i.e. how much to increment z for each pixel X FIXED mb_dx X FIXED mb_dy X X* If this is actually a Julia set, this is the c = jx + jy i X FIXED mb_jx X FIXED mb_jy X X* (x1,y1)-(x2,y2) rectangle within rastport to fill with mandelbrot X UWORD mb_x1 X UWORD mb_y1 X UWORD mb_x2 X UWORD mb_y2 X X* Pointer to a call-back procedure (or NULL) that should return X* with Z clear (result nonzero) if some kind of break condition is met X APTR mb_break X X UWORD mb_i ; max. number of iterations, 0<= i <=65533 X UWORD mb_colors ; number of colors used in colouring OUTSIDE X UBYTE mb_flags ; see below X BYTE mb_pad X LABEL mb_SIZEOF X X* Flags for mb_flags X BITDEF MB,HIGH,0 ; 32 bit precision enabled X BITDEF MB,CRAWL,1 ; crawling enabled X BITDEF MB,JULIA,2 ; this is actually a Julia set X BITDEF MB,AUTOPREC,3 ; automatic precision (16/32 bits, ignore HIGH) X BITDEF MB,AUTOCRAWL,4 ; automatic crawling when adequate, ign. CRAWL X X* Limit for AUTOPREC XDELTALIMIT EQU $40000 X X* PIXEL color defines XCLEAR EQU 0 ; the color (x1,y1)-(x2,y2) is cleared to XINTERIOR EQU 1 ; inside the set XFIRST EQU 2 ; outside the set X END_OF_FILE if test 1659 -ne `wc -c <'source/mbrot.i'`; then echo shar: \"'source/mbrot.i'\" unpacked with wrong size! fi # end of 'source/mbrot.i' fi if test -f 'source/pipe.asm' -a "${1}" != "-c" ; then echo shar: Will not clobber existing file \"'source/pipe.asm'\" else echo shar: Extracting \"'source/pipe.asm'\" $4315 characters$ sed "s/^X//" >'source/pipe.asm' <<'END_OF_FILE' X X* This file: pipe v0.01 X X* (c) 1990 by The DM X X XDEF f_push X XDEF f_pull X XDEF f_clear X X XREF _LVOAllocMem X XREF _LVOFreeMem X XMAXDEPTH EQU 254 X X SECTION pipe,CODE X X* error = f_push(value) X* Z d0 X X* Will push d0.l to dynamically allocated linked list of memory X* that represents pipe (fifo). Pointers _Head and _Tail should be X* initialized to 0 before first call. Define MAXDEPTH to # of X* longwords to be stored in one chunk of memory. X* If Z is set (result zero) no memory was left. X X* All registers are preserved. X X* Structure: X* X* LONG next ; points to previous structure X* WORD used ; offset from beginning, points to 1st used long. X* WORD free ; offset from beginning, points to 1st free long. X* LONG data [0] ; 1st longword of data X* ... X* LONG data [MAXDEPTH-1] X X Xf_push: X movem.l a0-a2/a6/d0-d2,-(a7) X move.l d0,d2 X move.l _Head,a0 X move.l a0,d0 X bne.s 1$ X X* This is first time we are called so X bsr.s _push1 X beq.s 3$ ; error, no memory X move.l a0,_Tail ; this pointer also needs to be initialized X1$: X cmp.w #(MAXDEPTH*4)+4+2+2,6(a0) X bcs.s 4$ X X* This hunk is full, allocate next one X move.l a0,a2 X bsr.s _push1 X beq.s 3$ ; error, no memory! X move.l a0,(a2) ; link hunks X4$: X move.w 6(a0),d0 ; free X move.l d2,0(a0,d0.w) X addq.w #4,6(a0) ; result is nonzero X3$: ; if brach here, result is zero X movem.l (a7)+,a0-a2/a6/d0-d2 X rts X X* Here we allocate one block. X* nextblock/a0 , Z/error = _push1 () X_push1: X move.l #(MAXDEPTH*4)+4+2+2,d0 X moveq #0,d1 X move.l $4,a6 X jsr _LVOAllocMem(a6) X tst.l d0 X beq.s 2$ X X X move.l d0,a0 X clr.l (a0) ; next field set to zero X move.w #8,4(a0) ; used initialized to 4 (offset) X move.w #8,6(a0) ; free initialized to 8 (offset) X move.l a0,_Head ; result is nonzero X2$: ; if branch here, result is zero X rts ; if error, Z will be set X X X* value = f_pull () X* d0 X X* Will pull d0.l from dynamically allocated linked list of memory X* that represents pipe. If client is trying to pull from empty X* pipe, -1 will be returned and Z will be set. X* Will automagically deallocate any memory. X X* NOTE: if you do not pull everything you have pushed, memory X* will be lost! X Xf_pull: X movem.l a0-a2/a6/d1-d2,-(a7) X move.l _Tail,a2 X moveq #-1,d0 X move.l a2,d1 X beq.s 1$ ; Pipe is empty X X addq.w #4,4(a2) X move.w 4(a2),d0 X move.l -4(a2,d0.w),d2 ; Pipe contains at least one value X* ^^ This is because I just accidentally incremented d0 X X cmp.w 6(a2),d0 ; if used == free, time to free this block X bne.s 2$ X X* Done with this block, deallocate it and move to next X move.l a2,a1 X move.l (a1),a2 X move.l #(MAXDEPTH*4)+4+2+2,d0 X move.l $4,a6 X jsr _LVOFreeMem(a6) X move.l a2,_Tail X bne.s 2$ ; if this was last block, X clr.l _Head ; clear _Head as well. X2$: X move.l d2,d0 X moveq #-1,d1 ; this is surely nonzero X1$: X movem.l (a7)+,a0-a2/a6/d1-d2 X rts X X X* f_clear () X X* Will deallocate our pipe quickly, cleanly and completely in case there X* is no need to process the remaining stuff in the pipe. X Xf_clear: X movem.l a0-a2/a6/d0-d1,-(a7) X move.l _Tail,a2 X move.l $4,a6 X1$: X move.l a2,a1 X move.l a2,d0 X beq.s 2$ X X* This block is valid, deallocate it & back up X move.l (a1),a2 X move.l #(MAXDEPTH*4)+4+2+2,d0 X jsr _LVOFreeMem(a6) X bra.s 1$ X2$: X* Ups! Almost forget: X clr.l _Head X clr.l _Tail X movem.l (a7)+,a0-a2/a6/d0-d1 X rts X X* In order to save space, these are right here in program segment... X X_Head: dc.l 0 ; initialized to zero! X_Tail: dc.l 0 X END END_OF_FILE if test 4315 -ne `wc -c <'source/pipe.asm'`; then echo shar: \"'source/pipe.asm'\" unpacked with wrong size! fi # end of 'source/pipe.asm' fi echo shar: End of archive 1 $of 4$. cp /dev/null ark1isdone MISSING="" for I in 1 2 3 4 ; do if test ! -f ark${I}isdone ; then MISSING="${MISSING} ${I}" fi done if test "${MISSING}" = "" ; then echo You have unpacked all 4 archives. rm -f ark[1-9]isdone else echo You still need to unpack the following archives: echo " " ${MISSING} fi ## End of shell archive. exit 0 -- Mail submissions (sources or binaries) to <amiga@uunet.uu.net>. Mail comments to the moderator at <amiga-request@uunet.uu.net>. Post requests for sources, and general discussion to comp.sys.amiga.misc.