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L/+FIXTHE
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_53.ADF |
| Filename: | L/+FIXTHE |
| Read OK: | ✔ |
| File size: | 0844 bytes |
| Load address: | 4C204556 |
| Exec address: | 49462B2E |
File contents
FIX THE SHIPWRECK!
A LONG time has passed since I last subscribed or contributed to EUG and
I never thought anyone would be so interested in my little coding SHIP-
WRECKED projects as I see our editor is!
From reading the reviews of both on the 8 Bit Software web site, I
noticed that the comment was made that they run very fast on BBCs. This
is something I had also noticed at the time - and I made a fix for it
which I would like to note for EUG readers.
There is a timing regulation procedure within the program but as I
only had an Elk at the time, it never got tested. Hence it never
actually worked properly. It can be fixed for BBCs by making the follow-
ing change before the code of SHIP3 is executed:
?&5B7F=10
So a new program with timing fix would be:
10MODE2:VDU23;8202;0;0;0;
20*LOAD SHIP3
30?&5B7F=10
40CALL&1FCC
Another convenient place to put it is in the cheat loader and this can
be done by adding the line:
65?&5B7F=10
The same 'bug' is also present in JUPITER III as well, but it is not so
noticeable as the scrolling screen slows it down. The fix for this is:
?&5B7D=10
This makes the BBC speed more or less match the Elk's. You might think
it's a bit slow, so if so you can make the 10 smaller (so if you type
?&5B7D=9, it's a bit faster!).
Still on the theme, flex your arcade fingers in anticipation of SHIP-
WRECKED III which, although slightly held up at the moment, is almost
finished. It combines the best bits out of each of the earlier two
games, fixes a few of their bugs and goes back to flick-screen as I
agree that the scrolling didn't work that well.
The only problem I have at the moment is that the game design is
stuck on a friend's PC 500 miles away with no floppy drive or modem! I
should eventually get it sorted out in the autumn though. Of course,
then I'll have the whole game on my computer at university but no BBC
there to test it on.
All this probably means that EUG won't see it until early December!
Dominic Ford, EUG #53
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 46 49 58 20 54 48 | FIX TH| 00000020 45 20 53 48 49 50 57 52 45 43 4b 21 0d 0d 41 20 |E SHIPWRECK!..A | 00000030 4c 4f 4e 47 20 74 69 6d 65 20 68 61 73 20 70 61 |LONG time has pa| 00000040 73 73 65 64 20 73 69 6e 63 65 20 49 20 6c 61 73 |ssed since I las| 00000050 74 20 73 75 62 73 63 72 69 62 65 64 20 6f 72 20 |t subscribed or | 00000060 63 6f 6e 74 72 69 62 75 74 65 64 20 74 6f 20 45 |contributed to E| 00000070 55 47 20 61 6e 64 0d 49 20 6e 65 76 65 72 20 74 |UG and.I never t| 00000080 68 6f 75 67 68 74 20 61 6e 79 6f 6e 65 20 77 6f |hought anyone wo| 00000090 75 6c 64 20 62 65 20 73 6f 20 69 6e 74 65 72 65 |uld be so intere| 000000a0 73 74 65 64 20 69 6e 20 6d 79 20 6c 69 74 74 6c |sted in my littl| 000000b0 65 20 63 6f 64 69 6e 67 20 53 48 49 50 2d 0d 57 |e coding SHIP-.W| 000000c0 52 45 43 4b 45 44 20 70 72 6f 6a 65 63 74 73 20 |RECKED projects | 000000d0 61 73 20 49 20 73 65 65 20 6f 75 72 20 65 64 69 |as I see our edi| 000000e0 74 6f 72 20 69 73 21 0d 20 20 20 46 72 6f 6d 20 |tor is!. From | 000000f0 72 65 61 64 69 6e 67 20 74 68 65 20 72 65 76 69 |reading the revi| 00000100 65 77 73 20 6f 66 20 62 6f 74 68 20 6f 6e 20 74 |ews of both on t| 00000110 68 65 20 38 20 42 69 74 20 53 6f 66 74 77 61 72 |he 8 Bit Softwar| 00000120 65 20 77 65 62 20 73 69 74 65 2c 20 49 0d 6e 6f |e web site, I.no| 00000130 74 69 63 65 64 20 74 68 61 74 20 74 68 65 20 63 |ticed that the c| 00000140 6f 6d 6d 65 6e 74 20 77 61 73 20 6d 61 64 65 20 |omment was made | 00000150 74 68 61 74 20 74 68 65 79 20 72 75 6e 20 76 65 |that they run ve| 00000160 72 79 20 66 61 73 74 20 6f 6e 20 42 42 43 73 2e |ry fast on BBCs.| 00000170 20 54 68 69 73 0d 69 73 20 73 6f 6d 65 74 68 69 | This.is somethi| 00000180 6e 67 20 49 20 68 61 64 20 61 6c 73 6f 20 6e 6f |ng I had also no| 00000190 74 69 63 65 64 20 61 74 20 74 68 65 20 74 69 6d |ticed at the tim| 000001a0 65 20 2d 20 61 6e 64 20 49 20 6d 61 64 65 20 61 |e - and I made a| 000001b0 20 66 69 78 20 66 6f 72 20 69 74 20 0d 77 68 69 | fix for it .whi| 000001c0 63 68 20 49 20 77 6f 75 6c 64 20 6c 69 6b 65 20 |ch I would like | 000001d0 74 6f 20 6e 6f 74 65 20 66 6f 72 20 45 55 47 20 |to note for EUG | 000001e0 72 65 61 64 65 72 73 2e 0d 20 20 20 54 68 65 72 |readers.. Ther| 000001f0 65 20 69 73 20 61 20 74 69 6d 69 6e 67 20 72 65 |e is a timing re| 00000200 67 75 6c 61 74 69 6f 6e 20 70 72 6f 63 65 64 75 |gulation procedu| 00000210 72 65 20 77 69 74 68 69 6e 20 74 68 65 20 70 72 |re within the pr| 00000220 6f 67 72 61 6d 20 62 75 74 20 61 73 20 49 20 0d |ogram but as I .| 00000230 6f 6e 6c 79 20 68 61 64 20 61 6e 20 45 6c 6b 20 |only had an Elk | 00000240 61 74 20 74 68 65 20 74 69 6d 65 2c 20 69 74 20 |at the time, it | 00000250 6e 65 76 65 72 20 67 6f 74 20 74 65 73 74 65 64 |never got tested| 00000260 2e 20 48 65 6e 63 65 20 69 74 20 6e 65 76 65 72 |. Hence it never| 00000270 20 0d 61 63 74 75 61 6c 6c 79 20 77 6f 72 6b 65 | .actually worke| 00000280 64 20 70 72 6f 70 65 72 6c 79 2e 20 49 74 20 63 |d properly. It c| 00000290 61 6e 20 62 65 20 66 69 78 65 64 20 66 6f 72 20 |an be fixed for | 000002a0 42 42 43 73 20 62 79 20 6d 61 6b 69 6e 67 20 74 |BBCs by making t| 000002b0 68 65 20 66 6f 6c 6c 6f 77 2d 0d 69 6e 67 20 63 |he follow-.ing c| 000002c0 68 61 6e 67 65 20 62 65 66 6f 72 65 20 74 68 65 |hange before the| 000002d0 20 63 6f 64 65 20 6f 66 20 53 48 49 50 33 20 69 | code of SHIP3 i| 000002e0 73 20 65 78 65 63 75 74 65 64 3a 0d 20 20 20 20 |s executed:. | 000002f0 20 20 3f 26 35 42 37 46 3d 31 30 0d 0d 53 6f 20 | ?&5B7F=10..So | 00000300 61 20 6e 65 77 20 70 72 6f 67 72 61 6d 20 77 69 |a new program wi| 00000310 74 68 20 74 69 6d 69 6e 67 20 66 69 78 20 77 6f |th timing fix wo| 00000320 75 6c 64 20 62 65 3a 0d 20 20 20 20 20 20 31 30 |uld be:. 10| 00000330 4d 4f 44 45 32 3a 56 44 55 32 33 3b 38 32 30 32 |MODE2:VDU23;8202| 00000340 3b 30 3b 30 3b 30 3b 0d 20 20 20 20 20 20 32 30 |;0;0;0;. 20| 00000350 2a 4c 4f 41 44 20 53 48 49 50 33 0d 20 20 20 20 |*LOAD SHIP3. | 00000360 20 20 33 30 3f 26 35 42 37 46 3d 31 30 0d 20 20 | 30?&5B7F=10. | 00000370 20 20 20 20 34 30 43 41 4c 4c 26 31 46 43 43 0d | 40CALL&1FCC.| 00000380 0d 41 6e 6f 74 68 65 72 20 63 6f 6e 76 65 6e 69 |.Another conveni| 00000390 65 6e 74 20 70 6c 61 63 65 20 74 6f 20 70 75 74 |ent place to put| 000003a0 20 69 74 20 69 73 20 69 6e 20 74 68 65 20 63 68 | it is in the ch| 000003b0 65 61 74 20 6c 6f 61 64 65 72 20 61 6e 64 20 74 |eat loader and t| 000003c0 68 69 73 20 63 61 6e 0d 62 65 20 64 6f 6e 65 20 |his can.be done | 000003d0 62 79 20 61 64 64 69 6e 67 20 74 68 65 20 6c 69 |by adding the li| 000003e0 6e 65 3a 0d 20 20 20 20 20 20 36 35 3f 26 35 42 |ne:. 65?&5B| 000003f0 37 46 3d 31 30 0d 0d 54 68 65 20 73 61 6d 65 20 |7F=10..The same | 00000400 27 62 75 67 27 20 69 73 20 61 6c 73 6f 20 70 72 |'bug' is also pr| 00000410 65 73 65 6e 74 20 69 6e 20 4a 55 50 49 54 45 52 |esent in JUPITER| 00000420 20 49 49 49 20 61 73 20 77 65 6c 6c 2c 20 62 75 | III as well, bu| 00000430 74 20 69 74 20 69 73 20 6e 6f 74 20 73 6f 0d 6e |t it is not so.n| 00000440 6f 74 69 63 65 61 62 6c 65 20 61 73 20 74 68 65 |oticeable as the| 00000450 20 73 63 72 6f 6c 6c 69 6e 67 20 73 63 72 65 65 | scrolling scree| 00000460 6e 20 73 6c 6f 77 73 20 69 74 20 64 6f 77 6e 2e |n slows it down.| 00000470 20 54 68 65 20 66 69 78 20 66 6f 72 20 74 68 69 | The fix for thi| 00000480 73 20 69 73 3a 0d 20 20 20 20 20 20 3f 26 35 42 |s is:. ?&5B| 00000490 37 44 3d 31 30 0d 0d 54 68 69 73 20 6d 61 6b 65 |7D=10..This make| 000004a0 73 20 74 68 65 20 42 42 43 20 73 70 65 65 64 20 |s the BBC speed | 000004b0 6d 6f 72 65 20 6f 72 20 6c 65 73 73 20 6d 61 74 |more or less mat| 000004c0 63 68 20 74 68 65 20 45 6c 6b 27 73 2e 20 59 6f |ch the Elk's. Yo| 000004d0 75 20 6d 69 67 68 74 20 74 68 69 6e 6b 0d 69 74 |u might think.it| 000004e0 27 73 20 61 20 62 69 74 20 73 6c 6f 77 2c 20 73 |'s a bit slow, s| 000004f0 6f 20 69 66 20 73 6f 20 79 6f 75 20 63 61 6e 20 |o if so you can | 00000500 6d 61 6b 65 20 74 68 65 20 31 30 20 73 6d 61 6c |make the 10 smal| 00000510 6c 65 72 20 28 73 6f 20 69 66 20 79 6f 75 20 74 |ler (so if you t| 00000520 79 70 65 0d 3f 26 35 42 37 44 3d 39 2c 20 69 74 |ype.?&5B7D=9, it| 00000530 27 73 20 61 20 62 69 74 20 66 61 73 74 65 72 21 |'s a bit faster!| 00000540 29 2e 0d 0d 53 74 69 6c 6c 20 6f 6e 20 74 68 65 |)...Still on the| 00000550 20 74 68 65 6d 65 2c 20 66 6c 65 78 20 79 6f 75 | theme, flex you| 00000560 72 20 61 72 63 61 64 65 20 66 69 6e 67 65 72 73 |r arcade fingers| 00000570 20 69 6e 20 61 6e 74 69 63 69 70 61 74 69 6f 6e | in anticipation| 00000580 20 6f 66 20 53 48 49 50 2d 0d 57 52 45 43 4b 45 | of SHIP-.WRECKE| 00000590 44 20 49 49 49 20 77 68 69 63 68 2c 20 61 6c 74 |D III which, alt| 000005a0 68 6f 75 67 68 20 73 6c 69 67 68 74 6c 79 20 68 |hough slightly h| 000005b0 65 6c 64 20 75 70 20 61 74 20 74 68 65 20 6d 6f |eld up at the mo| 000005c0 6d 65 6e 74 2c 20 69 73 20 61 6c 6d 6f 73 74 0d |ment, is almost.| 000005d0 66 69 6e 69 73 68 65 64 2e 20 49 74 20 63 6f 6d |finished. It com| 000005e0 62 69 6e 65 73 20 74 68 65 20 62 65 73 74 20 62 |bines the best b| 000005f0 69 74 73 20 6f 75 74 20 6f 66 20 65 61 63 68 20 |its out of each | 00000600 6f 66 20 74 68 65 20 65 61 72 6c 69 65 72 20 74 |of the earlier t| 00000610 77 6f 20 0d 67 61 6d 65 73 2c 20 66 69 78 65 73 |wo .games, fixes| 00000620 20 61 20 66 65 77 20 6f 66 20 74 68 65 69 72 20 | a few of their | 00000630 62 75 67 73 20 61 6e 64 20 67 6f 65 73 20 62 61 |bugs and goes ba| 00000640 63 6b 20 74 6f 20 66 6c 69 63 6b 2d 73 63 72 65 |ck to flick-scre| 00000650 65 6e 20 61 73 20 49 0d 61 67 72 65 65 20 74 68 |en as I.agree th| 00000660 61 74 20 74 68 65 20 73 63 72 6f 6c 6c 69 6e 67 |at the scrolling| 00000670 20 64 69 64 6e 27 74 20 77 6f 72 6b 20 74 68 61 | didn't work tha| 00000680 74 20 77 65 6c 6c 2e 0d 20 20 20 54 68 65 20 6f |t well.. The o| 00000690 6e 6c 79 20 70 72 6f 62 6c 65 6d 20 49 20 68 61 |nly problem I ha| 000006a0 76 65 20 61 74 20 74 68 65 20 6d 6f 6d 65 6e 74 |ve at the moment| 000006b0 20 69 73 20 74 68 61 74 20 74 68 65 20 67 61 6d | is that the gam| 000006c0 65 20 64 65 73 69 67 6e 20 69 73 0d 73 74 75 63 |e design is.stuc| 000006d0 6b 20 6f 6e 20 61 20 66 72 69 65 6e 64 27 73 20 |k on a friend's | 000006e0 50 43 20 35 30 30 20 6d 69 6c 65 73 20 61 77 61 |PC 500 miles awa| 000006f0 79 20 77 69 74 68 20 6e 6f 20 66 6c 6f 70 70 79 |y with no floppy| 00000700 20 64 72 69 76 65 20 6f 72 20 6d 6f 64 65 6d 21 | drive or modem!| 00000710 20 49 0d 73 68 6f 75 6c 64 20 65 76 65 6e 74 75 | I.should eventu| 00000720 61 6c 6c 79 20 67 65 74 20 69 74 20 73 6f 72 74 |ally get it sort| 00000730 65 64 20 6f 75 74 20 69 6e 20 74 68 65 20 61 75 |ed out in the au| 00000740 74 75 6d 6e 20 74 68 6f 75 67 68 2e 20 4f 66 20 |tumn though. Of | 00000750 63 6f 75 72 73 65 2c 20 0d 74 68 65 6e 20 49 27 |course, .then I'| 00000760 6c 6c 20 68 61 76 65 20 74 68 65 20 77 68 6f 6c |ll have the whol| 00000770 65 20 67 61 6d 65 20 6f 6e 20 6d 79 20 63 6f 6d |e game on my com| 00000780 70 75 74 65 72 20 61 74 20 75 6e 69 76 65 72 73 |puter at univers| 00000790 69 74 79 20 62 75 74 20 6e 6f 20 42 42 43 0d 74 |ity but no BBC.t| 000007a0 68 65 72 65 20 74 6f 20 74 65 73 74 20 69 74 20 |here to test it | 000007b0 6f 6e 2e 0d 20 20 20 41 6c 6c 20 74 68 69 73 20 |on.. All this | 000007c0 70 72 6f 62 61 62 6c 79 20 6d 65 61 6e 73 20 74 |probably means t| 000007d0 68 61 74 20 45 55 47 20 77 6f 6e 27 74 20 73 65 |hat EUG won't se| 000007e0 65 20 69 74 20 75 6e 74 69 6c 20 65 61 72 6c 79 |e it until early| 000007f0 20 44 65 63 65 6d 62 65 72 21 0d 20 20 20 20 20 | December!. | 00000800 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 | | * 00000820 20 20 20 20 20 20 20 20 20 20 20 20 20 20 44 6f | Do| 00000830 6d 69 6e 69 63 20 46 6f 72 64 2c 20 45 55 47 20 |minic Ford, EUG | 00000840 23 35 33 0d |#53.| 00000844
L/+FIXTHE.m0
L/+FIXTHE.m1
L/+FIXTHE.m2
L/+FIXTHE.m4
L/+FIXTHE.m5
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