Home » Personal collection » Acorn ADFS disks » Electron_User_Group » EUG_15.ADF » B/FEA1
B/FEA1
This website contains an archive of files for the Acorn Electron, BBC Micro, Acorn Archimedes, Commodore 16 and Commodore 64 computers, which Dominic Ford has rescued from his private collection of floppy disks and cassettes.
Some of these files were originally commercial releases in the 1980s and 1990s, but they are now widely available online. I assume that copyright over them is no longer being asserted. If you own the copyright and would like files to be removed, please contact me.
Tape/disk: | Home » Personal collection » Acorn ADFS disks » Electron_User_Group » EUG_15.ADF |
Filename: | B/FEA1 |
Read OK: | ✔ |
File size: | 0B5B bytes |
Load address: | 56206576 |
Exec address: | 444E495F |
File contents
E . U . I N D E X ~~~~~~~~~~~~~~~~~~~~ By Will Watts ~~~~~~~~~~~~~~ Another look through the back issues of "Electron User" magazine. JUNE 1984 ********* ARTICLES ~~~~~~~~ Intoduction to programming (Part Five) - by Pete Bibby. The list of BASIC commands already explained was growing. This time the ins and outs of "INPUT" were discussed. Graphics - by Mike Macmanus. Delved deeper into the use of VDU19 to enliven screen displays. Program Probe - by Nigel Peters. Explained how multi-coloured User Defined Characters could be constructed by using VDU5 to join the text and graphics cursors together creating an overlay effect. Maths Workout - by Mike Bibby. The wonders of Bits, Bytes, Nibbles and Hexadecimal numbers were revealed. LISTINGS ~~~~~~~~ Random Coloured Lines - by A. Farmer. It's strange to think that ten years ago we were all enthralled by programs like this that had almost no merit whatsoever! Screen Set-up - by A. Oldham. This prog took 34 lines to set the background and foreground colours of the screen display when two simple VDU19 statements could have done the same job. Code Breaker - by Roland Waddilove. Long before he became Elecron User's editor, Rolly baby was sending in well written little progs like this which was a computer version of the "Mastermind" coloured peg logic game. Laser Shootout - by Marcus Adams (I think!). This shoot-a-moving-target game appeared as an accompaniment to a review of the Signpoint Joyport - a joystick interface designed to fit straight onto the Electron's expansion bus, which wasn't much use if you wanted to add a PLUS-1 at a later date! If you didn't have a Joyport you could use the keyboard instead. Sounds Exciting - You were invited to pin back your lugholes and sample:- Piano Scale, Wasp, High Dive, Singing Alien, Crash landing, Boing, Foghorn and the rather pretentiouly titled "Music of the Spheres"! Fun with Circles - by M. Philips & A. Golden. A short, well structured program that used (pinchable) procedures to draw filled circles and semi-circles. The resulting picture was of that smiley face that first appeared in the early 70's and was later hijacked by Acid-House music freaks in the late 80's. Casting Agency - Modes of transport seemed to be the theme this month. The bit patterns were for:- Bomber, Oil Tanker (ship), Motor Bike, Car, Plane, Racing Car. Vrooom Vrooom! Money Maze - by Roland Waddilove. Rol(or "R" as his friends called him), presented his second offering which was a PacMan clone. V.A.T. - by Simon James. A short prog to calculate the Value Added Tax for a given item. Crystals - by David Davies. Graphics demo that used palette changing to create the illusion of rotating crystals.
00000000 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 | | 00000010 20 20 20 20 20 20 20 20 20 20 45 20 2e 20 55 20 | E . U | 00000020 2e 20 20 20 20 49 20 4e 20 44 20 45 20 58 0d 20 |. I N D E X. | 00000030 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 | | 00000040 20 20 20 20 20 20 20 20 20 7e 7e 7e 7e 7e 7e 7e | ~~~~~~~| 00000050 7e 7e 7e 7e 7e 7e 7e 7e 7e 7e 7e 7e 7e 0d 20 20 |~~~~~~~~~~~~~. | 00000060 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 | | 00000070 20 20 20 20 20 20 20 20 20 20 20 42 79 20 57 69 | By Wi| 00000080 6c 6c 20 20 57 61 74 74 73 0d 20 20 20 20 20 20 |ll Watts. | 00000090 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 | | 000000a0 20 20 20 20 20 20 20 7e 7e 7e 7e 7e 7e 7e 7e 7e | ~~~~~~~~~| 000000b0 7e 7e 7e 7e 7e 0d 0d 41 6e 6f 74 68 65 72 20 6c |~~~~~..Another l| 000000c0 6f 6f 6b 20 74 68 72 6f 75 67 68 20 74 68 65 20 |ook through the | 000000d0 62 61 63 6b 20 69 73 73 75 65 73 20 6f 66 20 22 |back issues of "| 000000e0 45 6c 65 63 74 72 6f 6e 20 55 73 65 72 22 20 6d |Electron User" m| 000000f0 61 67 61 7a 69 6e 65 2e 0d 0d 4a 55 4e 45 20 31 |agazine...JUNE 1| 00000100 39 38 34 0d 2a 2a 2a 2a 2a 2a 2a 2a 2a 0d 0d 41 |984.*********..A| 00000110 52 54 49 43 4c 45 53 0d 7e 7e 7e 7e 7e 7e 7e 7e |RTICLES.~~~~~~~~| 00000120 0d 49 6e 74 6f 64 75 63 74 69 6f 6e 1a 20 74 6f |.Intoduction. to| 00000130 20 70 72 6f 67 72 61 6d 6d 69 6e 67 20 28 50 61 | programming (Pa| 00000140 72 74 20 46 69 76 65 29 20 2d 20 62 79 20 50 65 |rt Five) - by Pe| 00000150 74 65 20 42 69 62 62 79 2e 20 54 68 65 20 6c 69 |te Bibby. The li| 00000160 73 74 20 6f 66 20 42 41 53 49 43 0d 63 6f 6d 6d |st of BASIC.comm| 00000170 61 6e 64 73 20 61 6c 72 65 61 64 79 1a 20 65 78 |ands already. ex| 00000180 70 6c 61 69 6e 65 64 1a 20 77 61 73 1a 20 67 72 |plained. was. gr| 00000190 6f 77 69 6e 67 2e 1a 20 54 68 69 73 1a 20 74 69 |owing.. This. ti| 000001a0 6d 65 20 74 68 65 20 69 6e 73 20 61 6e 64 20 6f |me the ins and o| 000001b0 75 74 73 20 6f 66 0d 22 49 4e 50 55 54 22 20 77 |uts of."INPUT" w| 000001c0 65 72 65 20 64 69 73 63 75 73 73 65 64 2e 0d 0d |ere discussed...| 000001d0 47 72 61 70 68 69 63 73 20 2d 20 62 79 20 4d 69 |Graphics - by Mi| 000001e0 6b 65 20 4d 61 63 6d 61 6e 75 73 2e 1a 20 44 65 |ke Macmanus.. De| 000001f0 6c 76 65 64 1a 20 64 65 65 70 65 72 1a 20 69 6e |lved. deeper. in| 00000200 74 6f 1a 20 74 68 65 1a 20 75 73 65 1a 20 6f 66 |to. the. use. of| 00000210 1a 20 56 44 55 31 39 20 74 6f 0d 65 6e 6c 69 76 |. VDU19 to.enliv| 00000220 65 6e 20 73 63 72 65 65 6e 20 64 69 73 70 6c 61 |en screen displa| 00000230 79 73 2e 0d 0d 50 72 6f 67 72 61 6d 20 50 72 6f |ys...Program Pro| 00000240 62 65 20 2d 20 62 79 20 4e 69 67 65 6c 20 50 65 |be - by Nigel Pe| 00000250 74 65 72 73 2e 20 45 78 70 6c 61 69 6e 65 64 20 |ters. Explained | 00000260 68 6f 77 20 6d 75 6c 74 69 2d 63 6f 6c 6f 75 72 |how multi-colour| 00000270 65 64 20 55 73 65 72 20 44 65 66 69 6e 65 64 0d |ed User Defined.| 00000280 43 68 61 72 61 63 74 65 72 73 1a 20 63 6f 75 6c |Characters. coul| 00000290 64 20 62 65 20 63 6f 6e 73 74 72 75 63 74 65 64 |d be constructed| 000002a0 20 62 79 1a 20 75 73 69 6e 67 1a 20 56 44 55 35 | by. using. VDU5| 000002b0 1a 20 74 6f 1a 20 6a 6f 69 6e 1a 20 74 68 65 1a |. to. join. the.| 000002c0 20 74 65 78 74 1a 20 61 6e 64 0d 67 72 61 70 68 | text. and.graph| 000002d0 69 63 73 20 63 75 72 73 6f 72 73 20 74 6f 67 65 |ics cursors toge| 000002e0 74 68 65 72 20 63 72 65 61 74 69 6e 67 20 61 6e |ther creating an| 000002f0 20 6f 76 65 72 6c 61 79 20 65 66 66 65 63 74 2e | overlay effect.| 00000300 0d 0d 4d 61 74 68 73 1a 20 57 6f 72 6b 6f 75 74 |..Maths. Workout| 00000310 1a 20 2d 1a 20 62 79 1a 20 4d 69 6b 65 20 42 69 |. -. by. Mike Bi| 00000320 62 62 79 2e 20 54 68 65 20 77 6f 6e 64 65 72 73 |bby. The wonders| 00000330 20 6f 66 20 42 69 74 73 2c 20 42 79 74 65 73 2c | of Bits, Bytes,| 00000340 20 4e 69 62 62 6c 65 73 20 61 6e 64 0d 48 65 78 | Nibbles and.Hex| 00000350 61 64 65 63 69 6d 61 6c 20 6e 75 6d 62 65 72 73 |adecimal numbers| 00000360 20 77 65 72 65 20 72 65 76 65 61 6c 65 64 2e 0d | were revealed..| 00000370 0d 4c 49 53 54 49 4e 47 53 0d 7e 7e 7e 7e 7e 7e |.LISTINGS.~~~~~~| 00000380 7e 7e 0d 52 61 6e 64 6f 6d 20 43 6f 6c 6f 75 72 |~~.Random Colour| 00000390 65 64 20 4c 69 6e 65 73 20 2d 20 62 79 20 41 2e |ed Lines - by A.| 000003a0 20 46 61 72 6d 65 72 2e 20 49 74 27 73 20 73 74 | Farmer. It's st| 000003b0 72 61 6e 67 65 20 74 6f 20 74 68 69 6e 6b 20 74 |range to think t| 000003c0 68 61 74 20 74 65 6e 20 79 65 61 72 73 0d 61 67 |hat ten years.ag| 000003d0 6f 20 77 65 20 77 65 72 65 20 61 6c 6c 20 65 6e |o we were all en| 000003e0 74 68 72 61 6c 6c 65 64 1a 20 62 79 20 70 72 6f |thralled. by pro| 000003f0 67 72 61 6d 73 20 6c 69 6b 65 20 74 68 69 73 20 |grams like this | 00000400 74 68 61 74 20 68 61 64 20 61 6c 6d 6f 73 74 20 |that had almost | 00000410 6e 6f 20 6d 65 72 69 74 0d 77 68 61 74 73 6f 65 |no merit.whatsoe| 00000420 76 65 72 21 0d 0d 53 63 72 65 65 6e 1a 20 53 65 |ver!..Screen. Se| 00000430 74 2d 75 70 1a 20 2d 1a 20 62 79 1a 20 41 2e 1a |t-up. -. by. A..| 00000440 20 4f 6c 64 68 61 6d 2e 1a 20 54 68 69 73 20 70 | Oldham.. This p| 00000450 72 6f 67 20 74 6f 6f 6b 20 33 34 1a 20 6c 69 6e |rog took 34. lin| 00000460 65 73 1a 20 74 6f 1a 20 73 65 74 1a 20 74 68 65 |es. to. set. the| 00000470 0d 62 61 63 6b 67 72 6f 75 6e 64 20 61 6e 64 20 |.background and | 00000480 66 6f 72 65 67 72 6f 75 6e 64 20 63 6f 6c 6f 75 |foreground colou| 00000490 72 73 20 6f 66 20 74 68 65 20 73 63 72 65 65 6e |rs of the screen| 000004a0 1a 20 64 69 73 70 6c 61 79 1a 20 77 68 65 6e 1a |. display. when.| 000004b0 20 74 77 6f 20 73 69 6d 70 6c 65 0d 56 44 55 31 | two simple.VDU1| 000004c0 39 20 73 74 61 74 65 6d 65 6e 74 73 20 63 6f 75 |9 statements cou| 000004d0 6c 64 20 68 61 76 65 20 64 6f 6e 65 20 74 68 65 |ld have done the| 000004e0 20 73 61 6d 65 20 6a 6f 62 2e 0d 0d 43 6f 64 65 | same job...Code| 000004f0 20 42 72 65 61 6b 65 72 20 2d 20 62 79 20 52 6f | Breaker - by Ro| 00000500 6c 61 6e 64 1a 20 57 61 64 64 69 6c 6f 76 65 2e |land. Waddilove.| 00000510 1a 20 4c 6f 6e 67 20 62 65 66 6f 72 65 20 68 65 |. Long before he| 00000520 20 62 65 63 61 6d 65 20 45 6c 65 63 72 6f 6e 20 | became Elecron | 00000530 55 73 65 72 27 73 0d 65 64 69 74 6f 72 2c 20 52 |User's.editor, R| 00000540 6f 6c 6c 79 20 62 61 62 79 20 77 61 73 20 73 65 |olly baby was se| 00000550 6e 64 69 6e 67 20 69 6e 20 77 65 6c 6c 1a 20 77 |nding in well. w| 00000560 72 69 74 74 65 6e 1a 20 6c 69 74 74 6c 65 1a 20 |ritten. little. | 00000570 70 72 6f 67 73 1a 20 6c 69 6b 65 1a 20 74 68 69 |progs. like. thi| 00000580 73 0d 77 68 69 63 68 20 77 61 73 20 61 20 63 6f |s.which was a co| 00000590 6d 70 75 74 65 72 20 76 65 72 73 69 6f 6e 20 6f |mputer version o| 000005a0 66 20 74 68 65 20 22 4d 61 73 74 65 72 6d 69 6e |f the "Mastermin| 000005b0 64 22 20 63 6f 6c 6f 75 72 65 64 20 70 65 67 20 |d" coloured peg | 000005c0 6c 6f 67 69 63 20 67 61 6d 65 2e 0d 0d 4c 61 73 |logic game...Las| 000005d0 65 72 20 53 68 6f 6f 74 6f 75 74 20 2d 20 62 79 |er Shootout - by| 000005e0 20 4d 61 72 63 75 73 1a 20 41 64 61 6d 73 1a 20 | Marcus. Adams. | 000005f0 28 49 1a 20 74 68 69 6e 6b 21 29 2e 20 54 68 69 |(I. think!). Thi| 00000600 73 20 73 68 6f 6f 74 2d 61 2d 6d 6f 76 69 6e 67 |s shoot-a-moving| 00000610 2d 74 61 72 67 65 74 0d 67 61 6d 65 20 61 70 70 |-target.game app| 00000620 65 61 72 65 64 20 61 73 20 61 6e 20 61 63 63 6f |eared as an acco| 00000630 6d 70 61 6e 69 6d 65 6e 74 20 74 6f 20 61 20 72 |mpaniment to a r| 00000640 65 76 69 65 77 20 6f 66 20 74 68 65 20 53 69 67 |eview of the Sig| 00000650 6e 70 6f 69 6e 74 20 4a 6f 79 70 6f 72 74 20 2d |npoint Joyport -| 00000660 20 61 0d 6a 6f 79 73 74 69 63 6b 20 69 6e 74 65 | a.joystick inte| 00000670 72 66 61 63 65 20 64 65 73 69 67 6e 65 64 20 74 |rface designed t| 00000680 6f 20 66 69 74 20 73 74 72 61 69 67 68 74 20 6f |o fit straight o| 00000690 6e 74 6f 20 74 68 65 1a 20 45 6c 65 63 74 72 6f |nto the. Electro| 000006a0 6e 27 73 20 65 78 70 61 6e 73 69 6f 6e 0d 62 75 |n's expansion.bu| 000006b0 73 2c 20 77 68 69 63 68 20 77 61 73 6e 27 74 20 |s, which wasn't | 000006c0 6d 75 63 68 20 75 73 65 1a 20 69 66 20 79 6f 75 |much use. if you| 000006d0 20 77 61 6e 74 65 64 20 74 6f 20 61 64 64 20 61 | wanted to add a| 000006e0 20 50 4c 55 53 2d 31 20 61 74 20 61 20 6c 61 74 | PLUS-1 at a lat| 000006f0 65 72 20 64 61 74 65 21 0d 49 66 20 79 6f 75 20 |er date!.If you | 00000700 64 69 64 6e 27 74 20 68 61 76 65 20 61 20 4a 6f |didn't have a Jo| 00000710 79 70 6f 72 74 20 79 6f 75 20 63 6f 75 6c 64 20 |yport you could | 00000720 75 73 65 20 74 68 65 20 6b 65 79 62 6f 61 72 64 |use the keyboard| 00000730 20 69 6e 73 74 65 61 64 2e 0d 0d 53 6f 75 6e 64 | instead...Sound| 00000740 73 20 45 78 63 69 74 69 6e 67 20 2d 20 59 6f 75 |s Exciting - You| 00000750 20 77 65 72 65 20 69 6e 76 69 74 65 64 20 74 6f | were invited to| 00000760 20 70 69 6e 20 62 61 63 6b 20 79 6f 75 72 1a 20 | pin back your. | 00000770 6c 75 67 68 6f 6c 65 73 20 61 6e 64 20 73 61 6d |lugholes and sam| 00000780 70 6c 65 3a 2d 0d 50 69 61 6e 6f 20 53 63 61 6c |ple:-.Piano Scal| 00000790 65 2c 20 57 61 73 70 2c 20 48 69 67 68 20 44 69 |e, Wasp, High Di| 000007a0 76 65 2c 20 53 69 6e 67 69 6e 67 20 41 6c 69 65 |ve, Singing Alie| 000007b0 6e 2c 20 43 72 61 73 68 20 6c 61 6e 64 69 6e 67 |n, Crash landing| 000007c0 2c 20 42 6f 69 6e 67 2c 20 46 6f 67 68 6f 72 6e |, Boing, Foghorn| 000007d0 0d 61 6e 64 20 74 68 65 20 72 61 74 68 65 72 20 |.and the rather | 000007e0 70 72 65 74 65 6e 74 69 6f 75 6c 79 20 74 69 74 |pretentiouly tit| 000007f0 6c 65 64 20 22 4d 75 73 69 63 20 6f 66 20 74 68 |led "Music of th| 00000800 65 20 53 70 68 65 72 65 73 22 21 0d 0d 46 75 6e |e Spheres"!..Fun| 00000810 1a 20 77 69 74 68 20 43 69 72 63 6c 65 73 20 2d |. with Circles -| 00000820 20 62 79 20 4d 2e 20 50 68 69 6c 69 70 73 20 26 | by M. Philips &| 00000830 20 41 2e 20 47 6f 6c 64 65 6e 2e 20 41 1a 20 73 | A. Golden. A. s| 00000840 68 6f 72 74 2c 1a 20 77 65 6c 6c 1a 20 73 74 72 |hort,. well. str| 00000850 75 63 74 75 72 65 64 0d 70 72 6f 67 72 61 6d 20 |uctured.program | 00000860 74 68 61 74 1a 20 75 73 65 64 1a 20 28 70 69 6e |that. used. (pin| 00000870 63 68 61 62 6c 65 29 1a 20 70 72 6f 63 65 64 75 |chable). procedu| 00000880 72 65 73 1a 20 74 6f 1a 20 64 72 61 77 1a 20 66 |res. to. draw. f| 00000890 69 6c 6c 65 64 1a 20 63 69 72 63 6c 65 73 20 61 |illed. circles a| 000008a0 6e 64 0d 73 65 6d 69 2d 63 69 72 63 6c 65 73 2e |nd.semi-circles.| 000008b0 1a 20 54 68 65 1a 20 72 65 73 75 6c 74 69 6e 67 |. The. resulting| 000008c0 20 70 69 63 74 75 72 65 20 77 61 73 20 6f 66 20 | picture was of | 000008d0 74 68 61 74 20 73 6d 69 6c 65 79 20 66 61 63 65 |that smiley face| 000008e0 1a 20 74 68 61 74 1a 20 66 69 72 73 74 0d 61 70 |. that. first.ap| 000008f0 70 65 61 72 65 64 20 69 6e 20 74 68 65 1a 20 65 |peared in the. e| 00000900 61 72 6c 79 1a 20 37 30 27 73 1a 20 61 6e 64 1a |arly. 70's. and.| 00000910 20 77 61 73 1a 20 6c 61 74 65 72 20 68 69 6a 61 | was. later hija| 00000920 63 6b 65 64 20 62 79 20 41 63 69 64 2d 48 6f 75 |cked by Acid-Hou| 00000930 73 65 20 6d 75 73 69 63 0d 66 72 65 61 6b 73 20 |se music.freaks | 00000940 69 6e 20 74 68 65 20 6c 61 74 65 20 38 30 27 73 |in the late 80's| 00000950 2e 0d 0d 43 61 73 74 69 6e 67 20 41 67 65 6e 63 |...Casting Agenc| 00000960 79 20 2d 20 4d 6f 64 65 73 20 6f 66 20 74 72 61 |y - Modes of tra| 00000970 6e 73 70 6f 72 74 20 73 65 65 6d 65 64 20 74 6f |nsport seemed to| 00000980 20 62 65 20 74 68 65 20 74 68 65 6d 65 20 74 68 | be the theme th| 00000990 69 73 20 6d 6f 6e 74 68 2e 20 54 68 65 0d 62 69 |is month. The.bi| 000009a0 74 20 70 61 74 74 65 72 6e 73 20 77 65 72 65 20 |t patterns were | 000009b0 66 6f 72 3a 2d 20 42 6f 6d 62 65 72 2c 20 4f 69 |for:- Bomber, Oi| 000009c0 6c 20 54 61 6e 6b 65 72 20 28 73 68 69 70 29 2c |l Tanker (ship),| 000009d0 20 4d 6f 74 6f 72 20 42 69 6b 65 2c 20 43 61 72 | Motor Bike, Car| 000009e0 2c 20 50 6c 61 6e 65 2c 0d 52 61 63 69 6e 67 20 |, Plane,.Racing | 000009f0 43 61 72 2e 20 56 72 6f 6f 6f 6d 20 56 72 6f 6f |Car. Vrooom Vroo| 00000a00 6f 6d 21 0d 0d 4d 6f 6e 65 79 20 4d 61 7a 65 20 |om!..Money Maze | 00000a10 2d 20 62 79 20 52 6f 6c 61 6e 64 20 57 61 64 64 |- by Roland Wadd| 00000a20 69 6c 6f 76 65 2e 20 52 6f 6c 1a 28 6f 72 20 22 |ilove. Rol.(or "| 00000a30 52 22 20 61 73 20 68 69 73 20 66 72 69 65 6e 64 |R" as his friend| 00000a40 73 20 63 61 6c 6c 65 64 20 68 69 6d 29 2c 0d 70 |s called him),.p| 00000a50 72 65 73 65 6e 74 65 64 20 68 69 73 20 73 65 63 |resented his sec| 00000a60 6f 6e 64 20 6f 66 66 65 72 69 6e 67 20 77 68 69 |ond offering whi| 00000a70 63 68 20 77 61 73 20 61 20 50 61 63 4d 61 6e 20 |ch was a PacMan | 00000a80 63 6c 6f 6e 65 2e 20 0d 0d 56 2e 41 2e 54 2e 20 |clone. ..V.A.T. | 00000a90 2d 20 62 79 20 53 69 6d 6f 6e 20 4a 61 6d 65 73 |- by Simon James| 00000aa0 2e 20 41 20 73 68 6f 72 74 20 70 72 6f 67 20 74 |. A short prog t| 00000ab0 6f 20 63 61 6c 63 75 6c 61 74 65 20 74 68 65 20 |o calculate the | 00000ac0 56 61 6c 75 65 20 41 64 64 65 64 20 54 61 78 20 |Value Added Tax | 00000ad0 66 6f 72 0d 61 20 67 69 76 65 6e 20 69 74 65 6d |for.a given item| 00000ae0 2e 0d 0d 43 72 79 73 74 61 6c 73 20 2d 20 62 79 |...Crystals - by| 00000af0 20 44 61 76 69 64 20 44 61 76 69 65 73 2e 20 47 | David Davies. G| 00000b00 72 61 70 68 69 63 73 20 64 65 6d 6f 20 74 68 61 |raphics demo tha| 00000b10 74 1a 20 75 73 65 64 1a 20 70 61 6c 65 74 74 65 |t. used. palette| 00000b20 1a 20 63 68 61 6e 67 69 6e 67 20 74 6f 0d 63 72 |. changing to.cr| 00000b30 65 61 74 65 20 74 68 65 20 69 6c 6c 75 73 69 6f |eate the illusio| 00000b40 6e 20 6f 66 20 72 6f 74 61 74 69 6e 67 20 63 72 |n of rotating cr| 00000b50 79 73 74 61 6c 73 2e 0d 0d 0d 0d |ystals.....| 00000b5b