Spider

There are videos here of those caverns too. The 'full' game itself is denied (afaik) however there are a few variants, some don't have the extra caverns and some do, plus the freebie 'demo' one that only contains a couple of caverns. The actual 'layout' is very similar in the code itself.

Yes no issues. The initial problems I thought about were the extra features aka trampolines or like "vacuum decent" but it would be possible to work around those.

Thank you. That's impressive. 🙂 I did look closely at the other two level sets for the Sam Coupe with a thought to porting those over, as in either one "40 cavern" game or perhaps two separate ones but it is still very much on the back-burner.

MM_SP_Faster.tap The above 'test file' ( while I learned, thank you N.S! 🙂 ) has the following changes (excluding cosmetics like loading picture and slightly altered piano on title screen) The main change is to the four main copy routines which originally used LDIR in the main loop are now replaced with a routine using a number of LDI's resulting in an increase in speed. These copy routines being: Copy master attributes to attribute buffer , 512 bytes Copy master screen pixels to screen buffer , 4096 bytes Copy pixels from screen buffer to real screen , 4096 bytes Copy attributes from attribute buffer to real screen , 512 bytes The relative increase in speed is quite noticeable. 🙂 The only other changes were three small insignificant ones: Willy faces the correct way upon entry on each cavern The highscore is preset to 010000 instead of 000000 Amoebatron's Revenge conveyor is alive. These are something I'd automatically do anyway, probably.

Must say even with one small change to how the four main copy routines are done in the main loop, the relative speed increase is quite impressive all in all. JSW did not quite seem "as fast" doing the same however it did make a large difference still.

Welcome back 😄

I'm not sure having not owned a Mac for a long long long time (PowerPC 6100!) running System7 😮 😄 Do newer versions of the OS not have "Wine" (or similar tool) which lets you run some Windows programs ? Wine is for Linux but I've not really tried it much to see how good it is. I'd not recommend trying a virtual machine inside the Mac as it may run so slowly and be quite annoying.

Welcome Gary , thanks for joining and posting about this creation of yours. I'm sure we'd all be interested in the "other projects" you have too. 🙂

Hello and welcome. I did see your message about difficulty registering, I'm sorry about that. We don't have any "geographical / country" restrictions imposed here so I have to assume the issue (you solved yourself) was perhaps your service provider or similar. I can only think the captcha may of caused issues as it does use Google to get the actual image "puzzle" to solve. I checked via a third party tool that the site is or should be visible from there too, testing from "Shanghai" and "Guangzhou" , both got a "OK" 🙂 I was able to view your webpage and then via a translate tool read most of them too. 🙂

Source code for the BBC Micro version of JSW: jet-set-willy-disassembly.txt Disassembly by: Toby Lobster Game coder: Dave Mann (pseudonym Chris Robson) Note this is the disassembly of the 'original' JSW BBC release not the greatly updated/improved 2021 re-release.

Hopefully he might respond 🙂 That would be very helpful but if not then your plan sounds quite good.

Welcome and thank you! 🙂

There's also a CPC MM Rom too: mmrom.zip .zip contains a short (20s) video of its initialisation and the item itself too.

Higher resolution of the JSW2 Amstrad map:

I wanted to revisit this, as a lot of the tape/disk images had been modified so a fresh start as it were. I had the opportunity to test this on a real machine properly, and then I fed my original tape into an emulator to do this. The .wav is available if required of this tape, did not see an immediate need to upload it. Some emulators do support a .wav input instead of the more regular tape formats. (This is a rare pic, it does not often see daylight!) 😉 Sampled my original tape: With this: One code sheet later ( in the inlay, all ten pages of it! ) I was back in business... A hidden message too: For reasons unknown, the video won't play due to the codec its used as I had to convert it from a huge 1GB avi to a sane 5mb .mp4 , note there's no audio on it. Attaching as a .zip and yes the filename does have a purpose. HIEMMRAIDNAPRRRT.zip