Search found 1282 matches

by billcarr2005
Wed Mar 06, 2019 3:30 pm
Forum: software: classic games
Topic: Firetrack maps
Replies: 26
Views: 6389

Re: Firetrack maps

Mallworld Tesla
LEVEL3t.png
LEVEL2t.png
LEVEL1t.png
by billcarr2005
Wed Mar 06, 2019 12:59 pm
Forum: software: new games
Topic: New game for the BBC Master : Planet Nubium
Replies: 35
Views: 3915

Re: New game for the BBC Master : Planet Nubium

=D> I've been enjoying each version of this game, improving all the time!
by billcarr2005
Tue Mar 05, 2019 10:00 pm
Forum: software: classic games
Topic: Firetrack maps
Replies: 26
Views: 6389

Re: Firetrack maps

Iceworld Shail
LEVEL2t.png
LEVEL1t.png
by billcarr2005
Sun Mar 03, 2019 11:00 am
Forum: software: classic games
Topic: Firetrack maps
Replies: 26
Views: 6389

Re: Firetrack maps

Dustworld Delan
LEVEL2t.png
LEVEL1t.png
LEVEL3t.png
by billcarr2005
Sun Mar 03, 2019 10:53 am
Forum: software: classic games
Topic: Firetrack maps
Replies: 26
Views: 6389

Re: Firetrack maps

Baseworld Cygni
LEVEL1t.png
LEVEL3t.png
LEVEL2t.png
by billcarr2005
Wed Feb 27, 2019 3:19 pm
Forum: wanted
Topic: Level 9 games
Replies: 19
Views: 1281

Re: Level 9 games

Is Time and Magik OMG RARE?

I might have a spare disk...
by billcarr2005
Mon Feb 25, 2019 10:19 pm
Forum: adventures
Topic: Rainbird titles on the BBC
Replies: 6
Views: 582

Re: Rainbird titles on the BBC

The Centre for Computing History has a "test disk" for the BBC/Rainbird Knight Orc listed in their catalogue alongside the Atari version... http://www.computinghistory.org.uk/det/41152/Knight-Orc/ Woah, we could do with that archiving for sure! Wouldn't have thought it would've been protected eithe...
by billcarr2005
Sun Feb 24, 2019 1:31 pm
Forum: software: classic games
Topic: Firetrack maps
Replies: 26
Views: 6389

Re: Firetrack maps

Level data manipulation is started at &2D9E in the game code
by billcarr2005
Sun Feb 24, 2019 12:41 pm
Forum: software: classic games
Topic: Firetrack maps
Replies: 26
Views: 6389

Re: Firetrack maps

1C 00 06 08 04 40 A8 49 08 10 18 20 <-- value 05 0F 0A 0E 08 0C 13 1B <-- offset D9 E5 7A 7D B9 5E 5F AE D7 97 EB F9 C1 F7 07 9F 1F B3 7C 3D 07 BF 35 E6 5F D6 87 F3 19 This is the code for the start of the level 1C 00 is the length of the data 001C 06 gets stored in 0031 08 is the amount of data wh...
by billcarr2005
Sun Feb 24, 2019 11:32 am
Forum: software: classic games
Topic: Firetrack maps
Replies: 26
Views: 6389

Re: Firetrack maps

Nice. :) Are you using my scripts or have you created a utility of your own? I initially starting hacking at the BBC disk version code, then clunkily exported the graphics to single BMP tiles and rewrote the 6502 loops in BBC BASIC for Windows, although now I've realised I can't easily (unless I'm ...
by billcarr2005
Sun Feb 24, 2019 10:14 am
Forum: software: classic games
Topic: Firetrack maps
Replies: 26
Views: 6389

Re: Firetrack maps

Added full sets of the first two worlds below
by billcarr2005
Sun Feb 10, 2019 9:09 pm
Forum: bbcmicro.co.uk
Topic: Alternative REVS release
Replies: 2
Views: 181

Re: Alternative REVS release

I think the thread you linked to was this one...
Presume you meant the following viewtopic.php?f=1&t=4471#p39918 which contains the Superior Software re-release :)
by billcarr2005
Fri Feb 08, 2019 2:08 pm
Forum: software: classic games
Topic: Lunar Jetman protection
Replies: 34
Views: 1135

Re: Lunar Jetman protection

I've discovered why BeebEM 4.14 is failing. 6131 LDA FE61 ; PHA results in &FF on stack (&126), should be &69 (as on B-em v2.2) 6135 LDA FE6A ; PHA results in &FF on stack (&125), should be &D4 (as on B-em v2.2) By setting a breakpoint at &6161, B 6161 C 1A5 D4 69 the code will then decrypt fine, ca...
by billcarr2005
Fri Feb 08, 2019 11:31 am
Forum: software: classic games
Topic: Lunar Jetman protection
Replies: 34
Views: 1135

Re: Lunar Jetman protection

On BeebEM 4.14... If Lunar Jetman is falling at the final hurdle, the final decryption is to push FE61 and FE6A to the stack, pull them from the stack a little while later and store in FE68 and FE69 and then EOR the code, from &1800 until &6100 with FE68 and FE69 Nightshade is doing similar, but pus...
by billcarr2005
Fri Feb 08, 2019 11:04 am
Forum: software: classic games
Topic: Lunar Jetman protection
Replies: 34
Views: 1135

Re: Lunar Jetman protection

Nightshade UEF and CSW are here https://stardot.org.uk/forums/viewtopic.php?t=5023#p86170 The code in Nightshade at &710A JMP &719C occurs if &240 isn't &22 &719C decrypts &900 (format code posted on previous page) and executes it. Lunar Jetman has identical code at &6100, checking whether &240 isn'...
by billcarr2005
Fri Feb 08, 2019 12:04 am
Forum: software: classic games
Topic: Lunar Jetman protection
Replies: 34
Views: 1135

Re: Lunar Jetman protection

I think it was just that the screenshot was taken at a bad time. The program runs fine, graphics are as expected. I've just stepped through the Nightshade decoders (which runs correctly in BeebEM). It's mostly identical to Lunar Jetman, save for being loaded into different locations. Clearly the fin...
by billcarr2005
Thu Feb 07, 2019 11:11 pm
Forum: software: classic games
Topic: Lunar Jetman protection
Replies: 34
Views: 1135

Re: Lunar Jetman protection

Kevin Edwards wrote:
Thu Feb 07, 2019 10:59 pm
So, are all the Beeb emulators unable to load and run Lunar Jetman using the original tape images? Is there a bit more emulation work required for this game?

Thanks,
Kevin.
B-em v2.2 can successfully load the game from the CSW :)
JETMAN.png
by billcarr2005
Thu Feb 07, 2019 9:18 pm
Forum: software: classic games
Topic: Lunar Jetman protection
Replies: 34
Views: 1135

Re: Lunar Jetman protection

I'm not great at this, but I modified b-em's JMP instruction to scan memory for Kevin's signature *FX 200, and came up with three sightings. Do these decoded blocks look right? &6100 BLOCK 6100: AD 40 02 LDA 0240 6103: C9 47 CMP #47 6105: F0 06 BEQ 610D 6107: 8C 04 61 STY 6104 ; obfuscate? 610A: 4C...
by billcarr2005
Wed Feb 06, 2019 3:22 pm
Forum: software: classic games
Topic: Lunar Jetman protection
Replies: 34
Views: 1135

Re: Lunar Jetman protection

Kevin Edwards wrote:
Wed Feb 06, 2019 3:02 pm

LJ_GRAB1.JPG
The opcodes to the left dont resemble the readable code to the right? #-o
For example at &325E A9 84, not LDA #&84 but BNE noalieninit
by billcarr2005
Thu Jan 31, 2019 10:37 pm
Forum: archive submissions
Topic: Doctor Who and the Mines of Terror Demonstration copy : Version 1.0
Replies: 3
Views: 230

Re: Doctor Who and the Minres of Terror Demonstration copy : Version 1.0

Pernod wrote:
Thu Jan 31, 2019 9:58 pm
What does this require to run? Can't get it to work on any emulator.
Works fine in BeebEM 4.14, B-em v2.2 and on jsBeeb :roll:
Needs OS1.2 and an 8271 DFS
Requires the disk to be write enabled.
by billcarr2005
Thu Jan 31, 2019 8:18 pm
Forum: archive submissions
Topic: Doctor Who and the Mines of Terror Demonstration copy : Version 1.0
Replies: 3
Views: 230

Doctor Who and the Mines of Terror Demonstration copy : Version 1.0

Self running demo

(edited title because I couldn't spell)
by billcarr2005
Sun Jan 27, 2019 8:34 pm
Forum: archive submissions
Topic: MUSIC EDITOR / ENVELOPE GENERATOR - SYSTEM SOFTWARE
Replies: 0
Views: 172

MUSIC EDITOR / ENVELOPE GENERATOR - SYSTEM SOFTWARE

I saw this requested in a FB group, but couldn't find it anywhere already, so here it is!

*RUN EDITT for the Music Editor
*RUN ENVGEN for the Envelope Generator
CHAIN"PLAYT" to play the tune

Only had the disks, so no documentation :(
by billcarr2005
Sat Jan 26, 2019 5:46 pm
Forum: software: other
Topic: DiskToUSB error (paging jgharston)
Replies: 37
Views: 2020

Re: DiskToUSB error (paging jgharston)

That's contradicted by Kieran Mockford: DiscExec.zip contains DiscExec.ssd which is a single sided 80 track image version with a small selection of games on it. I removed the protection from the original floppy I purchased way back in the 80s. Also, Vision Software's business model for Disc Executo...
by billcarr2005
Sat Jan 26, 2019 4:13 pm
Forum: archive requests
Topic: Genie/Genie Junior by PMS
Replies: 4
Views: 330

Re: Genie/Genie Junior by PMS

Within the !BOOT at &20B0 there was LDX#&08 LDA &9EFF,X LDA &9E00 And then a LDA loop to read from &A000 until &BFFF I LDA'd from &8000 until &9FFF and STA'd to &3000 so i could see if / when the data was changing. With X between 1 and 16 I got 1, 17 and 32 (possible) bank 2, 33 - 48 (3) and 49 - 64...
by billcarr2005
Sat Jan 26, 2019 3:37 pm
Forum: emulators
Topic: Two more VIA test cases
Replies: 3
Views: 258

Re: Two more VIA test cases

VIA.T23
251
249

VIA.T12
253
0
by billcarr2005
Sat Jan 26, 2019 3:11 pm
Forum: software: other
Topic: DiskToUSB error (paging jgharston)
Replies: 37
Views: 2020

Re: DiskToUSB error (paging jgharston)

Thanks. The way you've implemented sector-skipping for bad sectors (or deliberately malformatted sectors, as found in copy-protection schemes) is good enough to make a working image of a 40T disc I’ve got which seems to have originally been formatted with Vision Software's Disc Executor . It was a ...
by billcarr2005
Wed Jan 09, 2019 10:02 pm
Forum: archive requests
Topic: Games for your BBC Micro from Virgin Books
Replies: 5
Views: 218

Re: Games for your BBC Micro from Virgin Books

The copy at 8bs is faulty. The archive will not open. http://8bs.com/othrdnld/manuals/publication/Virgin_Games_For_Your_BBC_Micro.zip it open here ok... Lee are you using Windows 3.11 :lol: it even works with win10 :shock: The file at the end of Virgin_Games_For_Your_BBC_Micro\pdfvgfybm.zip\PDF\PDF...
by billcarr2005
Sun Jan 06, 2019 3:49 pm
Forum: archive submissions
Topic: The Publisher by PMS ROM
Replies: 8
Views: 317

Re: The Publisher by PMS ROM

DutchAcorn wrote:
Sun Jan 06, 2019 8:54 am
Yes, I have the user guide for it and the utilities disk (which seems to be mainly for additional fonts). I'll put scanning / imaging them on my to do list...
I can save you the trouble of imaging the disk, unless it's different... TITLE is Publisher v2 (33)
by billcarr2005
Sun Jan 06, 2019 12:11 am
Forum: archive requests
Topic: Genie/Genie Junior by PMS
Replies: 4
Views: 330

Re: Genie/Genie Junior by PMS

I hacked away at the !BOOT on the Genie format disk, since the Genie was password protected. Got it to format, then reused some code to retrieve 4 x 8KB blocks of code which all seem unique, save for the last 256 bytes or so. Not sure if they'll be any use. The Genie is a sealed unit and didn't real...
by billcarr2005
Wed Jan 02, 2019 7:00 pm
Forum: software: other
Topic: WE Wapping Editor Discs
Replies: 20
Views: 1836

Re: WE Wapping Editor Discs

Pernod wrote:
Wed Jan 02, 2019 2:49 am
Do you also have the ROM that goes with the 1.21 utilities? Only the 1.30 ROM is currently dumped.
Unfortunately not, only the disks in the boxes :(