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Rocket Man - Commented Disassembly

Posted: Wed Jul 19, 2017 12:50 am
by Fruitcake
A fully commented disassembly of Rocket Man from Software Farm is now available here allowing you to discover exactly how this classic pseudo hi-res game works.

And using this I have created a conversion of the game for the 48K Spectrum, which can be found here.

The conversion uses the original code re-assembled 16K higher in memory so that it clears the Spectrum's display file. The code has been patched so that whenever the ZX81 display file gets updated its contents are rendered into an equivalent image in the Spectrum's display file. This approach allows the Spectrum to run Julian Chappell's actual code to achieve an experience near identical to the ZX81 original.

A video of the converted game can be found on YouTube.

Re: Rocket Man - Commented Disassembly

Posted: Wed Jul 19, 2017 8:53 am
by sirmorris
Awesome! Now for the '80? ;)

Re: Rocket Man - Commented Disassembly

Posted: Sat Jul 22, 2017 1:06 am
by Andy Rea
cool stuff, i'll be taking a look at mazogs and 3dmonster maze too, this work must have took many hours thank you

regards Andy

Re: Rocket Man - Commented Disassembly

Posted: Sat Jul 29, 2017 11:29 pm
by Fruitcake
Andy Rea wrote: Sat Jul 22, 2017 1:06 am cool stuff, i'll be taking a look at mazogs and 3dmonster maze too, this work must have took many hours thank you
Yeah it took a while... ;)

But fascinating to find out how these classic games work!

Re: Rocket Man - Commented Disassembly

Posted: Sat Jul 29, 2017 11:42 pm
by Fruitcake
A colour conversion of the game for use with a ZX81 and Chroma interface can be found here.

Re: Rocket Man - Commented Disassembly

Posted: Mon Nov 18, 2019 7:01 pm
by bivvyfox
Hi. Hope you don't mind a thread resurrection. But the links here from the www.fruitcake.plus.com site are all down.

I especially wanted this one:-

http://www.fruitcake.plus.com/Sinclair/ ... ketMan.htm

(The commented disassembly of rocketman.)

As I am looking to code my own zx-81 high res game an this would help. Plus I love rocket man.

Re: Rocket Man - Commented Disassembly

Posted: Mon Nov 18, 2019 7:08 pm
by Paul
The website will be back soon. Please try again every week.

Re: Rocket Man - Commented Disassembly

Posted: Mon Nov 18, 2019 10:16 pm
by Dim_75
Well i think i have it too
RocketManDisassembly.zip
(58.15 KiB) Downloaded 329 times
:)

Re: Rocket Man - Commented Disassembly

Posted: Mon Nov 18, 2019 10:27 pm
by 1024MAK
bivvyfox wrote: Mon Nov 18, 2019 7:01 pm Hi. Hope you don't mind a thread resurrection. But the links here from the www.fruitcake.plus.com site are all down.
More info about the site being down here.

Mark

Re: Rocket Man - Commented Disassembly

Posted: Wed Nov 20, 2019 8:50 pm
by bivvyfox
Dim_75 wrote: Mon Nov 18, 2019 10:16 pm Well i think i have it too RocketManDisassembly.zip :)
Oh, that's brilliant thanks so much! Now to work out how to get it compiled using my PC, I'm new to 81 dev.