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L/+LICKIN
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_56.ADF |
Filename: | L/+LICKIN |
Read OK: | ✔ |
File size: | 13A6 bytes |
Load address: | 4C204556 |
Exec address: | 494C2B2E |
Duplicates
There are 2 duplicate copies of this file in the archive:
- AEW website » eug » eug_3_5_discs_Eug-56_A-EUG56.adf » L/+LICKIN
- AEW website » eug » eug_5_25_discs_Eug-56_D-EUG56.dsd » L.+LICKIN
- Personal collection » Acorn ADFS disks » Electron_User_Group » EUG_56.ADF » L/+LICKIN
File contents
LICKING WHOOPSY I READ the recent review of WHOOPSY and wonder if it is possible to get the game to work from disk on a system where PAGE is higher than &E00. I have the tape game but I prefer not to wait around if possible. The files all transfer to disk - but the game hangs after the opening screen on both the BBC Model B's DFS (PAGE at &1100) and the Electron's ADFS (PAGE at &1D00). On the Master 128 it's fine but I would rather have a version compatible with all machines if possible. Any advice? Kevin Etheridge Email: kevin.etheridge@btinternet.com PROBLEMS like this are depressingly all too common because professional programmers try to make their games as polished as possible by cramming code into every last orifice of the machine. When loading from tape, the respective machine normally has more memory to spare. When loading from disk, the Disk Operating System usually uses some of that memory for its operation. So if you have the disk loading a game which is writing to the area of memory the ADFS or DFS has reserved, you get an almighty crash and the machine locks up. The bad news is that this is a problem you can only fully get around with gadgets like the ADVANCED PLUS 4 chip (or by buying a Master). The good news is that WHOOPSY is one of the few games that CAN be made to work on any machine with the addition of a 'downloader' program to the code. Many of the demos and more professional programs that make it onto each EUG magazine incorporate such 'downloaders'. The problem file is loaded into a higher PAGE of memory (possibly even screen memory which is why you get 'rubbish' all over the screen) and isn't executed until the (A)DFS has been disabled and the code 'relocated' to its 'proper' PAGE. Then the execution address is called and the program works correctly. If you are new to BBC programming, you will probably need to study the Memory Map in the User Guide in conjunction with the following explanation. With WHOOPSY, you need to make alterations to two of the loader prog- rams. LOAD"WHOOPSY" (the first loader with the sprites), LIST then type: >DELETE 1,4 (the lines putting PAGE at &E00) It's best to add another line too so that the loader screen doesn't only appear for a second before it is blanked as soon as the next file is loaded. >215COL.7:P.'SPC(4)"PRESS SPACE";:OSCLI("FX 21"):REPEATUNTILGET=32 Now SAVE"WHOOPSY". If you decide to RUN the game at this point, it will still 'lock up'. This is because, after you press SPACE, "WHOOPS2" is CHAINed and IT *RUNs "FULGAME" which causes the error. So LOAD"WHOOPS2" and LIST. In order to stop the screen filling with rubbish, it's necessary to get out of MODE2, which "WHOOPSY" has changed the Mode to. So add the line: >5MODE6:VDU23;8202;0;0;0; Now alter line 10 to: >10choice=&8C:?choice=1 and >DELETE 20,30 The statements in these two lines are important but they cause problems with the 'downloader' and need to be put elsewhere. Now change line 80: >80COLOUR0 If you choose to omit this, you will see the downloader code on screen. However, make sure to delete the old line 80 in such case. Now the code itself. It is put into two of the function keys (the first calling the second) and the final command of the program executes function key 0 to *LOAD the problem file into memory: >90*KEY 0 "*L. FULGAME 2000|M*T.|MFORI%=0TO&21FFSTEP4:I%!E00=I%!&2 000:NEXTI%|M*FX138,0,129|M" >100*KEY 1 "MODE2:VDU23;8202;0;0;0;:?&224=&A6:?&87=&B7:?&88=&97:?& 89=&9E:?&8A=&BD:?&8B=&9D:CALL&1899|M" >110*FX138,0,128 The extra commands deleted from the old lines 20 and 30 are stuck back in here and, after carefully checking you have entered all of the code above correctly, SAVE"WHOOPS2" will complete the 'compatibilisation'. The new version of WHOOPSY can then be loaded from the disk with: >PAGE=&1D00 >CH."WHOOPSY" Incidentally, most games will require simply the code contained in line 90 (replacing the last *FX command with the execution address of the program). Programming a function key with: "*L. problem 'above1D00'|MFORI%=0TO'&length'STEP4:I%!'&start'=I%! 'above1D00':NEXTI%:CALL'&execute'|M" and substituting the 'above1D00' with, say, 2000, and the other hexa- decimal values (&xxxx) with those of the problem file (which you can discover with the *EX <RETURN> command) will work on a fair number of games. It is easy to mix up the addresses - so if things don't work first time, check them first before deciding the game cannot be 'down- loaded'. As an experiment, try DANGER UXB, GALACTIC COMMADNER, KAYLETH and STOCK CAR. With the right addresses inserted, all should work! You can also check out the version of WOODBURY END supplied with this EUG which was also made possible with a 'downloader'. (The) Dave, EUG #56
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 20 20 4c 49 43 4b | LICK| 00000020 49 4e 47 20 57 48 4f 4f 50 53 59 0d 0d 49 20 52 |ING WHOOPSY..I R| 00000030 45 41 44 20 74 68 65 20 72 65 63 65 6e 74 20 72 |EAD the recent r| 00000040 65 76 69 65 77 20 6f 66 20 57 48 4f 4f 50 53 59 |eview of WHOOPSY| 00000050 20 61 6e 64 20 77 6f 6e 64 65 72 20 69 66 20 69 | and wonder if i| 00000060 74 20 69 73 20 70 6f 73 73 69 62 6c 65 20 74 6f |t is possible to| 00000070 20 67 65 74 0d 74 68 65 20 67 61 6d 65 20 74 6f | get.the game to| 00000080 20 77 6f 72 6b 20 66 72 6f 6d 20 64 69 73 6b 20 | work from disk | 00000090 6f 6e 20 61 20 73 79 73 74 65 6d 20 77 68 65 72 |on a system wher| 000000a0 65 20 50 41 47 45 20 69 73 20 68 69 67 68 65 72 |e PAGE is higher| 000000b0 20 74 68 61 6e 20 26 45 30 30 2e 20 49 20 20 0d | than &E00. I .| 000000c0 68 61 76 65 20 74 68 65 20 74 61 70 65 20 67 61 |have the tape ga| 000000d0 6d 65 20 62 75 74 20 49 20 70 72 65 66 65 72 20 |me but I prefer | 000000e0 6e 6f 74 20 74 6f 20 77 61 69 74 20 61 72 6f 75 |not to wait arou| 000000f0 6e 64 20 69 66 20 70 6f 73 73 69 62 6c 65 2e 20 |nd if possible. | 00000100 54 68 65 20 0d 66 69 6c 65 73 20 61 6c 6c 20 74 |The .files all t| 00000110 72 61 6e 73 66 65 72 20 74 6f 20 64 69 73 6b 20 |ransfer to disk | 00000120 2d 20 62 75 74 20 74 68 65 20 67 61 6d 65 20 68 |- but the game h| 00000130 61 6e 67 73 20 61 66 74 65 72 20 74 68 65 20 6f |angs after the o| 00000140 70 65 6e 69 6e 67 20 73 63 72 65 65 6e 0d 6f 6e |pening screen.on| 00000150 20 62 6f 74 68 20 74 68 65 20 42 42 43 20 4d 6f | both the BBC Mo| 00000160 64 65 6c 20 42 27 73 20 44 46 53 20 28 50 41 47 |del B's DFS (PAG| 00000170 45 20 61 74 20 26 31 31 30 30 29 20 61 6e 64 20 |E at &1100) and | 00000180 74 68 65 20 45 6c 65 63 74 72 6f 6e 27 73 20 41 |the Electron's A| 00000190 44 46 53 0d 28 50 41 47 45 20 61 74 20 26 31 44 |DFS.(PAGE at &1D| 000001a0 30 30 29 2e 20 4f 6e 20 74 68 65 20 4d 61 73 74 |00). On the Mast| 000001b0 65 72 20 31 32 38 20 69 74 27 73 20 66 69 6e 65 |er 128 it's fine| 000001c0 20 62 75 74 20 49 20 77 6f 75 6c 64 20 72 61 74 | but I would rat| 000001d0 68 65 72 20 68 61 76 65 20 61 0d 76 65 72 73 69 |her have a.versi| 000001e0 6f 6e 20 63 6f 6d 70 61 74 69 62 6c 65 20 77 69 |on compatible wi| 000001f0 74 68 20 61 6c 6c 20 6d 61 63 68 69 6e 65 73 20 |th all machines | 00000200 69 66 20 70 6f 73 73 69 62 6c 65 2e 20 41 6e 79 |if possible. Any| 00000210 20 61 64 76 69 63 65 3f 0d 20 20 20 20 20 20 20 | advice?. | 00000220 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 | | * 00000250 20 20 4b 65 76 69 6e 20 45 74 68 65 72 69 64 67 | Kevin Etheridg| 00000260 65 0d 20 20 20 20 20 20 20 20 20 20 20 20 20 20 |e. | 00000270 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 | | 00000280 20 20 20 20 20 45 6d 61 69 6c 3a 20 6b 65 76 69 | Email: kevi| 00000290 6e 2e 65 74 68 65 72 69 64 67 65 40 62 74 69 6e |n.etheridge@btin| 000002a0 74 65 72 6e 65 74 2e 63 6f 6d 0d 0d 50 52 4f 42 |ternet.com..PROB| 000002b0 4c 45 4d 53 20 6c 69 6b 65 20 74 68 69 73 20 61 |LEMS like this a| 000002c0 72 65 20 64 65 70 72 65 73 73 69 6e 67 6c 79 20 |re depressingly | 000002d0 61 6c 6c 20 74 6f 6f 20 63 6f 6d 6d 6f 6e 20 62 |all too common b| 000002e0 65 63 61 75 73 65 20 70 72 6f 66 65 73 73 69 6f |ecause professio| 000002f0 6e 61 6c 0d 70 72 6f 67 72 61 6d 6d 65 72 73 20 |nal.programmers | 00000300 74 72 79 20 74 6f 20 6d 61 6b 65 20 74 68 65 69 |try to make thei| 00000310 72 20 67 61 6d 65 73 20 61 73 20 70 6f 6c 69 73 |r games as polis| 00000320 68 65 64 20 61 73 20 70 6f 73 73 69 62 6c 65 20 |hed as possible | 00000330 62 79 20 63 72 61 6d 6d 69 6e 67 0d 63 6f 64 65 |by cramming.code| 00000340 20 69 6e 74 6f 20 65 76 65 72 79 20 6c 61 73 74 | into every last| 00000350 20 6f 72 69 66 69 63 65 20 6f 66 20 74 68 65 20 | orifice of the | 00000360 6d 61 63 68 69 6e 65 2e 20 57 68 65 6e 20 6c 6f |machine. When lo| 00000370 61 64 69 6e 67 20 66 72 6f 6d 20 74 61 70 65 2c |ading from tape,| 00000380 20 74 68 65 0d 72 65 73 70 65 63 74 69 76 65 20 | the.respective | 00000390 6d 61 63 68 69 6e 65 20 6e 6f 72 6d 61 6c 6c 79 |machine normally| 000003a0 20 68 61 73 20 6d 6f 72 65 20 6d 65 6d 6f 72 79 | has more memory| 000003b0 20 74 6f 20 73 70 61 72 65 2e 20 57 68 65 6e 20 | to spare. When | 000003c0 6c 6f 61 64 69 6e 67 20 66 72 6f 6d 0d 64 69 73 |loading from.dis| 000003d0 6b 2c 20 74 68 65 20 44 69 73 6b 20 4f 70 65 72 |k, the Disk Oper| 000003e0 61 74 69 6e 67 20 53 79 73 74 65 6d 20 75 73 75 |ating System usu| 000003f0 61 6c 6c 79 20 75 73 65 73 20 73 6f 6d 65 20 6f |ally uses some o| 00000400 66 20 74 68 61 74 20 6d 65 6d 6f 72 79 20 66 6f |f that memory fo| 00000410 72 20 69 74 73 0d 6f 70 65 72 61 74 69 6f 6e 2e |r its.operation.| 00000420 20 53 6f 20 69 66 20 79 6f 75 20 68 61 76 65 20 | So if you have | 00000430 74 68 65 20 64 69 73 6b 20 6c 6f 61 64 69 6e 67 |the disk loading| 00000440 20 61 20 67 61 6d 65 20 77 68 69 63 68 20 69 73 | a game which is| 00000450 20 77 72 69 74 69 6e 67 20 74 6f 20 0d 74 68 65 | writing to .the| 00000460 20 61 72 65 61 20 6f 66 20 6d 65 6d 6f 72 79 20 | area of memory | 00000470 74 68 65 20 41 44 46 53 20 6f 72 20 44 46 53 20 |the ADFS or DFS | 00000480 68 61 73 20 72 65 73 65 72 76 65 64 2c 20 79 6f |has reserved, yo| 00000490 75 20 67 65 74 20 61 6e 20 61 6c 6d 69 67 68 74 |u get an almight| 000004a0 79 0d 63 72 61 73 68 20 61 6e 64 20 74 68 65 20 |y.crash and the | 000004b0 6d 61 63 68 69 6e 65 20 6c 6f 63 6b 73 20 75 70 |machine locks up| 000004c0 2e 20 54 68 65 20 62 61 64 20 6e 65 77 73 20 69 |. The bad news i| 000004d0 73 20 74 68 61 74 20 74 68 69 73 20 69 73 20 61 |s that this is a| 000004e0 20 70 72 6f 62 6c 65 6d 0d 79 6f 75 20 63 61 6e | problem.you can| 000004f0 20 6f 6e 6c 79 20 66 75 6c 6c 79 20 67 65 74 20 | only fully get | 00000500 61 72 6f 75 6e 64 20 77 69 74 68 20 67 61 64 67 |around with gadg| 00000510 65 74 73 20 6c 69 6b 65 20 74 68 65 20 41 44 56 |ets like the ADV| 00000520 41 4e 43 45 44 20 50 4c 55 53 20 34 20 63 68 69 |ANCED PLUS 4 chi| 00000530 70 0d 28 6f 72 20 62 79 20 62 75 79 69 6e 67 20 |p.(or by buying | 00000540 61 20 4d 61 73 74 65 72 29 2e 0d 20 20 20 54 68 |a Master).. Th| 00000550 65 20 67 6f 6f 64 20 6e 65 77 73 20 69 73 20 74 |e good news is t| 00000560 68 61 74 20 57 48 4f 4f 50 53 59 20 69 73 20 6f |hat WHOOPSY is o| 00000570 6e 65 20 6f 66 20 74 68 65 20 66 65 77 20 67 61 |ne of the few ga| 00000580 6d 65 73 20 74 68 61 74 20 43 41 4e 20 62 65 20 |mes that CAN be | 00000590 0d 6d 61 64 65 20 74 6f 20 77 6f 72 6b 20 6f 6e |.made to work on| 000005a0 20 61 6e 79 20 6d 61 63 68 69 6e 65 20 77 69 74 | any machine wit| 000005b0 68 20 74 68 65 20 61 64 64 69 74 69 6f 6e 20 6f |h the addition o| 000005c0 66 20 61 20 27 64 6f 77 6e 6c 6f 61 64 65 72 27 |f a 'downloader'| 000005d0 20 70 72 6f 67 72 61 6d 0d 74 6f 20 74 68 65 20 | program.to the | 000005e0 63 6f 64 65 2e 20 4d 61 6e 79 20 6f 66 20 74 68 |code. Many of th| 000005f0 65 20 64 65 6d 6f 73 20 61 6e 64 20 6d 6f 72 65 |e demos and more| 00000600 20 70 72 6f 66 65 73 73 69 6f 6e 61 6c 20 70 72 | professional pr| 00000610 6f 67 72 61 6d 73 20 74 68 61 74 20 6d 61 6b 65 |ograms that make| 00000620 0d 69 74 20 6f 6e 74 6f 20 65 61 63 68 20 45 55 |.it onto each EU| 00000630 47 20 6d 61 67 61 7a 69 6e 65 20 69 6e 63 6f 72 |G magazine incor| 00000640 70 6f 72 61 74 65 20 73 75 63 68 20 27 64 6f 77 |porate such 'dow| 00000650 6e 6c 6f 61 64 65 72 73 27 2e 20 54 68 65 20 70 |nloaders'. The p| 00000660 72 6f 62 6c 65 6d 0d 66 69 6c 65 20 69 73 20 6c |roblem.file is l| 00000670 6f 61 64 65 64 20 69 6e 74 6f 20 61 20 68 69 67 |oaded into a hig| 00000680 68 65 72 20 50 41 47 45 20 6f 66 20 6d 65 6d 6f |her PAGE of memo| 00000690 72 79 20 28 70 6f 73 73 69 62 6c 79 20 65 76 65 |ry (possibly eve| 000006a0 6e 20 73 63 72 65 65 6e 20 6d 65 6d 6f 72 79 0d |n screen memory.| 000006b0 77 68 69 63 68 20 69 73 20 77 68 79 20 79 6f 75 |which is why you| 000006c0 20 67 65 74 20 27 72 75 62 62 69 73 68 27 20 61 | get 'rubbish' a| 000006d0 6c 6c 20 6f 76 65 72 20 74 68 65 20 73 63 72 65 |ll over the scre| 000006e0 65 6e 29 20 61 6e 64 20 69 73 6e 27 74 20 65 78 |en) and isn't ex| 000006f0 65 63 75 74 65 64 0d 75 6e 74 69 6c 20 74 68 65 |ecuted.until the| 00000700 20 28 41 29 44 46 53 20 68 61 73 20 62 65 65 6e | (A)DFS has been| 00000710 20 64 69 73 61 62 6c 65 64 20 61 6e 64 20 74 68 | disabled and th| 00000720 65 20 63 6f 64 65 20 27 72 65 6c 6f 63 61 74 65 |e code 'relocate| 00000730 64 27 20 74 6f 20 69 74 73 20 0d 27 70 72 6f 70 |d' to its .'prop| 00000740 65 72 27 20 50 41 47 45 2e 20 54 68 65 6e 20 74 |er' PAGE. Then t| 00000750 68 65 20 65 78 65 63 75 74 69 6f 6e 20 61 64 64 |he execution add| 00000760 72 65 73 73 20 69 73 20 63 61 6c 6c 65 64 20 61 |ress is called a| 00000770 6e 64 20 74 68 65 20 70 72 6f 67 72 61 6d 20 0d |nd the program .| 00000780 77 6f 72 6b 73 20 63 6f 72 72 65 63 74 6c 79 2e |works correctly.| 00000790 20 49 66 20 79 6f 75 20 61 72 65 20 6e 65 77 20 | If you are new | 000007a0 74 6f 20 42 42 43 20 70 72 6f 67 72 61 6d 6d 69 |to BBC programmi| 000007b0 6e 67 2c 20 79 6f 75 20 77 69 6c 6c 20 70 72 6f |ng, you will pro| 000007c0 62 61 62 6c 79 0d 6e 65 65 64 20 74 6f 20 73 74 |bably.need to st| 000007d0 75 64 79 20 74 68 65 20 4d 65 6d 6f 72 79 20 4d |udy the Memory M| 000007e0 61 70 20 69 6e 20 74 68 65 20 55 73 65 72 20 47 |ap in the User G| 000007f0 75 69 64 65 20 69 6e 20 63 6f 6e 6a 75 6e 63 74 |uide in conjunct| 00000800 69 6f 6e 20 77 69 74 68 20 74 68 65 0d 66 6f 6c |ion with the.fol| 00000810 6c 6f 77 69 6e 67 20 65 78 70 6c 61 6e 61 74 69 |lowing explanati| 00000820 6f 6e 2e 0d 20 20 20 57 69 74 68 20 57 48 4f 4f |on.. With WHOO| 00000830 50 53 59 2c 20 79 6f 75 20 6e 65 65 64 20 74 6f |PSY, you need to| 00000840 20 6d 61 6b 65 20 61 6c 74 65 72 61 74 69 6f 6e | make alteration| 00000850 73 20 74 6f 20 74 77 6f 20 6f 66 20 74 68 65 20 |s to two of the | 00000860 6c 6f 61 64 65 72 20 70 72 6f 67 2d 0d 72 61 6d |loader prog-.ram| 00000870 73 2e 20 4c 4f 41 44 22 57 48 4f 4f 50 53 59 22 |s. LOAD"WHOOPSY"| 00000880 20 28 74 68 65 20 66 69 72 73 74 20 6c 6f 61 64 | (the first load| 00000890 65 72 20 77 69 74 68 20 74 68 65 20 73 70 72 69 |er with the spri| 000008a0 74 65 73 29 2c 20 4c 49 53 54 20 74 68 65 6e 20 |tes), LIST then | 000008b0 74 79 70 65 3a 0d 20 20 20 20 20 20 3e 44 45 4c |type:. >DEL| 000008c0 45 54 45 20 31 2c 34 20 28 74 68 65 20 6c 69 6e |ETE 1,4 (the lin| 000008d0 65 73 20 70 75 74 74 69 6e 67 20 50 41 47 45 20 |es putting PAGE | 000008e0 61 74 20 26 45 30 30 29 0d 0d 49 74 27 73 20 62 |at &E00)..It's b| 000008f0 65 73 74 20 74 6f 20 61 64 64 20 61 6e 6f 74 68 |est to add anoth| 00000900 65 72 20 6c 69 6e 65 20 74 6f 6f 20 73 6f 20 74 |er line too so t| 00000910 68 61 74 20 74 68 65 20 6c 6f 61 64 65 72 20 73 |hat the loader s| 00000920 63 72 65 65 6e 20 64 6f 65 73 6e 27 74 20 6f 6e |creen doesn't on| 00000930 6c 79 0d 61 70 70 65 61 72 20 66 6f 72 20 61 20 |ly.appear for a | 00000940 73 65 63 6f 6e 64 20 62 65 66 6f 72 65 20 69 74 |second before it| 00000950 20 69 73 20 62 6c 61 6e 6b 65 64 20 61 73 20 73 | is blanked as s| 00000960 6f 6f 6e 20 61 73 20 74 68 65 20 6e 65 78 74 20 |oon as the next | 00000970 66 69 6c 65 20 69 73 0d 6c 6f 61 64 65 64 2e 0d |file is.loaded..| 00000980 20 20 20 20 20 20 3e 32 31 35 43 4f 4c 2e 37 3a | >215COL.7:| 00000990 50 2e 27 53 50 43 28 34 29 22 50 52 45 53 53 20 |P.'SPC(4)"PRESS | 000009a0 53 50 41 43 45 22 3b 3a 4f 53 43 4c 49 28 22 46 |SPACE";:OSCLI("F| 000009b0 58 20 32 31 22 29 3a 52 45 50 45 41 54 55 4e 54 |X 21"):REPEATUNT| 000009c0 49 4c 47 45 54 3d 33 32 0d 0d 4e 6f 77 20 53 41 |ILGET=32..Now SA| 000009d0 56 45 22 57 48 4f 4f 50 53 59 22 2e 20 49 66 20 |VE"WHOOPSY". If | 000009e0 79 6f 75 20 64 65 63 69 64 65 20 74 6f 20 52 55 |you decide to RU| 000009f0 4e 20 74 68 65 20 67 61 6d 65 20 61 74 20 74 68 |N the game at th| 00000a00 69 73 20 70 6f 69 6e 74 2c 20 69 74 20 77 69 6c |is point, it wil| 00000a10 6c 0d 73 74 69 6c 6c 20 27 6c 6f 63 6b 20 75 70 |l.still 'lock up| 00000a20 27 2e 20 54 68 69 73 20 69 73 20 62 65 63 61 75 |'. This is becau| 00000a30 73 65 2c 20 61 66 74 65 72 20 79 6f 75 20 70 72 |se, after you pr| 00000a40 65 73 73 20 53 50 41 43 45 2c 20 22 57 48 4f 4f |ess SPACE, "WHOO| 00000a50 50 53 32 22 20 69 73 0d 43 48 41 49 4e 65 64 20 |PS2" is.CHAINed | 00000a60 61 6e 64 20 49 54 20 2a 52 55 4e 73 20 22 46 55 |and IT *RUNs "FU| 00000a70 4c 47 41 4d 45 22 20 77 68 69 63 68 20 63 61 75 |LGAME" which cau| 00000a80 73 65 73 20 74 68 65 20 65 72 72 6f 72 2e 20 53 |ses the error. S| 00000a90 6f 20 4c 4f 41 44 22 57 48 4f 4f 50 53 32 22 0d |o LOAD"WHOOPS2".| 00000aa0 61 6e 64 20 4c 49 53 54 2e 20 0d 20 20 20 49 6e |and LIST. . In| 00000ab0 20 6f 72 64 65 72 20 74 6f 20 73 74 6f 70 20 74 | order to stop t| 00000ac0 68 65 20 73 63 72 65 65 6e 20 66 69 6c 6c 69 6e |he screen fillin| 00000ad0 67 20 77 69 74 68 20 72 75 62 62 69 73 68 2c 20 |g with rubbish, | 00000ae0 69 74 27 73 20 6e 65 63 65 73 73 61 72 79 20 74 |it's necessary t| 00000af0 6f 0d 67 65 74 20 6f 75 74 20 6f 66 20 4d 4f 44 |o.get out of MOD| 00000b00 45 32 2c 20 77 68 69 63 68 20 22 57 48 4f 4f 50 |E2, which "WHOOP| 00000b10 53 59 22 20 68 61 73 20 63 68 61 6e 67 65 64 20 |SY" has changed | 00000b20 74 68 65 20 4d 6f 64 65 20 74 6f 2e 20 53 6f 20 |the Mode to. So | 00000b30 61 64 64 20 74 68 65 20 20 20 0d 6c 69 6e 65 3a |add the .line:| 00000b40 0d 20 20 20 20 20 20 3e 35 4d 4f 44 45 36 3a 56 |. >5MODE6:V| 00000b50 44 55 32 33 3b 38 32 30 32 3b 30 3b 30 3b 30 3b |DU23;8202;0;0;0;| 00000b60 0d 0d 4e 6f 77 20 61 6c 74 65 72 20 6c 69 6e 65 |..Now alter line| 00000b70 20 31 30 20 74 6f 3a 0d 20 20 20 20 20 20 3e 31 | 10 to:. >1| 00000b80 30 63 68 6f 69 63 65 3d 26 38 43 3a 3f 63 68 6f |0choice=&8C:?cho| 00000b90 69 63 65 3d 31 0d 61 6e 64 0d 20 20 20 20 20 20 |ice=1.and. | 00000ba0 3e 44 45 4c 45 54 45 20 32 30 2c 33 30 0d 0d 54 |>DELETE 20,30..T| 00000bb0 68 65 20 73 74 61 74 65 6d 65 6e 74 73 20 69 6e |he statements in| 00000bc0 20 74 68 65 73 65 20 74 77 6f 20 6c 69 6e 65 73 | these two lines| 00000bd0 20 61 72 65 20 69 6d 70 6f 72 74 61 6e 74 20 62 | are important b| 00000be0 75 74 20 74 68 65 79 20 63 61 75 73 65 20 70 72 |ut they cause pr| 00000bf0 6f 62 6c 65 6d 73 0d 77 69 74 68 20 74 68 65 20 |oblems.with the | 00000c00 27 64 6f 77 6e 6c 6f 61 64 65 72 27 20 61 6e 64 |'downloader' and| 00000c10 20 6e 65 65 64 20 74 6f 20 62 65 20 70 75 74 20 | need to be put | 00000c20 65 6c 73 65 77 68 65 72 65 2e 20 4e 6f 77 20 63 |elsewhere. Now c| 00000c30 68 61 6e 67 65 20 6c 69 6e 65 20 38 30 3a 0d 20 |hange line 80:. | 00000c40 20 20 20 20 20 3e 38 30 43 4f 4c 4f 55 52 30 0d | >80COLOUR0.| 00000c50 0d 49 66 20 79 6f 75 20 63 68 6f 6f 73 65 20 74 |.If you choose t| 00000c60 6f 20 6f 6d 69 74 20 74 68 69 73 2c 20 79 6f 75 |o omit this, you| 00000c70 20 77 69 6c 6c 20 73 65 65 20 74 68 65 20 64 6f | will see the do| 00000c80 77 6e 6c 6f 61 64 65 72 20 63 6f 64 65 20 6f 6e |wnloader code on| 00000c90 20 73 63 72 65 65 6e 2e 0d 48 6f 77 65 76 65 72 | screen..However| 00000ca0 2c 20 6d 61 6b 65 20 73 75 72 65 20 74 6f 20 64 |, make sure to d| 00000cb0 65 6c 65 74 65 20 74 68 65 20 6f 6c 64 20 6c 69 |elete the old li| 00000cc0 6e 65 20 38 30 20 69 6e 20 73 75 63 68 20 63 61 |ne 80 in such ca| 00000cd0 73 65 2e 0d 20 20 20 4e 6f 77 20 74 68 65 20 63 |se.. Now the c| 00000ce0 6f 64 65 20 69 74 73 65 6c 66 2e 20 49 74 20 69 |ode itself. It i| 00000cf0 73 20 70 75 74 20 69 6e 74 6f 20 74 77 6f 20 6f |s put into two o| 00000d00 66 20 74 68 65 20 66 75 6e 63 74 69 6f 6e 20 6b |f the function k| 00000d10 65 79 73 20 28 74 68 65 0d 66 69 72 73 74 20 63 |eys (the.first c| 00000d20 61 6c 6c 69 6e 67 20 74 68 65 20 73 65 63 6f 6e |alling the secon| 00000d30 64 29 20 61 6e 64 20 74 68 65 20 66 69 6e 61 6c |d) and the final| 00000d40 20 63 6f 6d 6d 61 6e 64 20 6f 66 20 74 68 65 20 | command of the | 00000d50 70 72 6f 67 72 61 6d 20 65 78 65 63 75 74 65 73 |program executes| 00000d60 0d 66 75 6e 63 74 69 6f 6e 20 6b 65 79 20 30 20 |.function key 0 | 00000d70 74 6f 20 2a 4c 4f 41 44 20 74 68 65 20 70 72 6f |to *LOAD the pro| 00000d80 62 6c 65 6d 20 66 69 6c 65 20 69 6e 74 6f 20 6d |blem file into m| 00000d90 65 6d 6f 72 79 3a 0d 20 20 20 20 20 20 3e 39 30 |emory:. >90| 00000da0 2a 4b 45 59 20 30 20 22 2a 4c 2e 20 46 55 4c 47 |*KEY 0 "*L. FULG| 00000db0 41 4d 45 20 32 30 30 30 7c 4d 2a 54 2e 7c 4d 46 |AME 2000|M*T.|MF| 00000dc0 4f 52 49 25 3d 30 54 4f 26 32 31 46 46 53 54 45 |ORI%=0TO&21FFSTE| 00000dd0 50 34 3a 49 25 21 45 30 30 3d 49 25 21 26 32 0d |P4:I%!E00=I%!&2.| 00000de0 20 20 20 20 20 20 30 30 30 3a 4e 45 58 54 49 25 | 000:NEXTI%| 00000df0 7c 4d 2a 46 58 31 33 38 2c 30 2c 31 32 39 7c 4d ||M*FX138,0,129|M| 00000e00 22 0d 20 20 20 20 20 20 3e 31 30 30 2a 4b 45 59 |". >100*KEY| 00000e10 20 31 20 22 4d 4f 44 45 32 3a 56 44 55 32 33 3b | 1 "MODE2:VDU23;| 00000e20 38 32 30 32 3b 30 3b 30 3b 30 3b 3a 3f 26 32 32 |8202;0;0;0;:?&22| 00000e30 34 3d 26 41 36 3a 3f 26 38 37 3d 26 42 37 3a 3f |4=&A6:?&87=&B7:?| 00000e40 26 38 38 3d 26 39 37 3a 3f 26 0d 20 20 20 20 20 |&88=&97:?&. | 00000e50 20 38 39 3d 26 39 45 3a 3f 26 38 41 3d 26 42 44 | 89=&9E:?&8A=&BD| 00000e60 3a 3f 26 38 42 3d 26 39 44 3a 43 41 4c 4c 26 31 |:?&8B=&9D:CALL&1| 00000e70 38 39 39 7c 4d 22 0d 20 20 20 20 20 20 3e 31 31 |899|M". >11| 00000e80 30 2a 46 58 31 33 38 2c 30 2c 31 32 38 0d 0d 54 |0*FX138,0,128..T| 00000e90 68 65 20 65 78 74 72 61 20 63 6f 6d 6d 61 6e 64 |he extra command| 00000ea0 73 20 64 65 6c 65 74 65 64 20 66 72 6f 6d 20 74 |s deleted from t| 00000eb0 68 65 20 6f 6c 64 20 6c 69 6e 65 73 20 32 30 20 |he old lines 20 | 00000ec0 61 6e 64 20 33 30 20 61 72 65 20 73 74 75 63 6b |and 30 are stuck| 00000ed0 20 62 61 63 6b 20 0d 69 6e 20 68 65 72 65 20 61 | back .in here a| 00000ee0 6e 64 2c 20 61 66 74 65 72 20 63 61 72 65 66 75 |nd, after carefu| 00000ef0 6c 6c 79 20 63 68 65 63 6b 69 6e 67 20 79 6f 75 |lly checking you| 00000f00 20 68 61 76 65 20 65 6e 74 65 72 65 64 20 61 6c | have entered al| 00000f10 6c 20 6f 66 20 74 68 65 20 63 6f 64 65 0d 61 62 |l of the code.ab| 00000f20 6f 76 65 20 63 6f 72 72 65 63 74 6c 79 2c 20 53 |ove correctly, S| 00000f30 41 56 45 22 57 48 4f 4f 50 53 32 22 20 77 69 6c |AVE"WHOOPS2" wil| 00000f40 6c 20 63 6f 6d 70 6c 65 74 65 20 74 68 65 20 27 |l complete the '| 00000f50 63 6f 6d 70 61 74 69 62 69 6c 69 73 61 74 69 6f |compatibilisatio| 00000f60 6e 27 2e 20 0d 54 68 65 20 6e 65 77 20 76 65 72 |n'. .The new ver| 00000f70 73 69 6f 6e 20 6f 66 20 57 48 4f 4f 50 53 59 20 |sion of WHOOPSY | 00000f80 63 61 6e 20 74 68 65 6e 20 62 65 20 6c 6f 61 64 |can then be load| 00000f90 65 64 20 66 72 6f 6d 20 74 68 65 20 64 69 73 6b |ed from the disk| 00000fa0 20 77 69 74 68 3a 0d 20 20 20 20 20 20 3e 50 41 | with:. >PA| 00000fb0 47 45 3d 26 31 44 30 30 0d 20 20 20 20 20 20 3e |GE=&1D00. >| 00000fc0 43 48 2e 22 57 48 4f 4f 50 53 59 22 0d 0d 49 6e |CH."WHOOPSY"..In| 00000fd0 63 69 64 65 6e 74 61 6c 6c 79 2c 20 6d 6f 73 74 |cidentally, most| 00000fe0 20 67 61 6d 65 73 20 77 69 6c 6c 20 72 65 71 75 | games will requ| 00000ff0 69 72 65 20 73 69 6d 70 6c 79 20 74 68 65 20 63 |ire simply the c| 00001000 6f 64 65 20 63 6f 6e 74 61 69 6e 65 64 20 69 6e |ode contained in| 00001010 20 6c 69 6e 65 0d 39 30 20 28 72 65 70 6c 61 63 | line.90 (replac| 00001020 69 6e 67 20 74 68 65 20 6c 61 73 74 20 2a 46 58 |ing the last *FX| 00001030 20 63 6f 6d 6d 61 6e 64 20 77 69 74 68 20 74 68 | command with th| 00001040 65 20 65 78 65 63 75 74 69 6f 6e 20 61 64 64 72 |e execution addr| 00001050 65 73 73 20 6f 66 20 74 68 65 0d 70 72 6f 67 72 |ess of the.progr| 00001060 61 6d 29 2e 20 50 72 6f 67 72 61 6d 6d 69 6e 67 |am). Programming| 00001070 20 61 20 66 75 6e 63 74 69 6f 6e 20 6b 65 79 20 | a function key | 00001080 77 69 74 68 3a 0d 20 20 20 20 20 20 22 2a 4c 2e |with:. "*L.| 00001090 20 70 72 6f 62 6c 65 6d 20 27 61 62 6f 76 65 31 | problem 'above1| 000010a0 44 30 30 27 7c 4d 46 4f 52 49 25 3d 30 54 4f 27 |D00'|MFORI%=0TO'| 000010b0 26 6c 65 6e 67 74 68 27 53 54 45 50 34 3a 49 25 |&length'STEP4:I%| 000010c0 21 27 26 73 74 61 72 74 27 3d 49 25 21 0d 20 20 |!'&start'=I%!. | 000010d0 20 20 20 20 27 61 62 6f 76 65 31 44 30 30 27 3a | 'above1D00':| 000010e0 4e 45 58 54 49 25 3a 43 41 4c 4c 27 26 65 78 65 |NEXTI%:CALL'&exe| 000010f0 63 75 74 65 27 7c 4d 22 0d 0d 61 6e 64 20 73 75 |cute'|M"..and su| 00001100 62 73 74 69 74 75 74 69 6e 67 20 74 68 65 20 27 |bstituting the '| 00001110 61 62 6f 76 65 31 44 30 30 27 20 77 69 74 68 2c |above1D00' with,| 00001120 20 73 61 79 2c 20 32 30 30 30 2c 20 61 6e 64 20 | say, 2000, and | 00001130 74 68 65 20 6f 74 68 65 72 20 68 65 78 61 2d 0d |the other hexa-.| 00001140 64 65 63 69 6d 61 6c 20 76 61 6c 75 65 73 20 28 |decimal values (| 00001150 26 78 78 78 78 29 20 77 69 74 68 20 74 68 6f 73 |&xxxx) with thos| 00001160 65 20 6f 66 20 74 68 65 20 70 72 6f 62 6c 65 6d |e of the problem| 00001170 20 66 69 6c 65 20 28 77 68 69 63 68 20 79 6f 75 | file (which you| 00001180 20 63 61 6e 0d 64 69 73 63 6f 76 65 72 20 77 69 | can.discover wi| 00001190 74 68 20 74 68 65 20 2a 45 58 20 3c 52 45 54 55 |th the *EX <RETU| 000011a0 52 4e 3e 20 63 6f 6d 6d 61 6e 64 29 20 77 69 6c |RN> command) wil| 000011b0 6c 20 77 6f 72 6b 20 6f 6e 20 61 20 66 61 69 72 |l work on a fair| 000011c0 20 6e 75 6d 62 65 72 20 6f 66 0d 67 61 6d 65 73 | number of.games| 000011d0 2e 20 49 74 20 69 73 20 65 61 73 79 20 74 6f 20 |. 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