title: Ass Invaders
by: diver4d
party: 3BM OpenAir 2011
compo: realtime zx spectrum demo
Hi there. Finally the demo is released in binary format. It was written realtime at the party, as all other demos within a few hours before the compo. This is a ZX Spectrum 48 BASIC demo, made with Spectaculator (a ZX Spectrum emulator by Jonathan Needle) running under iOS at iPad (1st gen). Binary wasn't released before because there was no export ability released in Spectaculator for iOS. We tryed about 5 different methods and nothing worked:
1. Save the program as sound. There was too much noises and it didn't worked.
2. Save the memory dump as a screenshot. It was too lossy (deformed and lossy). And we have failed.
3. HEX/DEC dump - I was too lazy to retype it at my PC ;)
4. Extract saved data from emulator via itunes - it didn't worked because saved snapshots are hidden from itunes.
5. Extract saved data with other hacker programs which can browse iOS data - we didn't know that they was existed in 2011 :)
So finally data was transferred as zoomed screen dump: each 32x24 pixels block of the screen was transferred to attribute area and screenshoted, after that the screenshots was glued together and final dump was processed with custom routine by psb^hlw to get a clear SCR file.
And after 3BM 2014 introspec asked me to release the demo. He took that SCR and extracted the BASIC program into TAP format. So it is here and you can see it in your emulator or even at real hardware.
Thanks goes to:
1. Unbeliever. For inspiring us to make 3BM OpenAir party. It was a blast, and we still don't stop this tradition.
2. Jonathan Needle. For writing a good emulator for iOS. Only that emualator made possible to write a BASIC demo using iPad at 2011 year.
3. psb^hlw. For supporting us and writing a conversion routine.
4. introspec. For his interest to our releases and converting the demo to proper format.
diver4d
08/08/2014
