Defending against Macronics Space Intruders | Paul Farrow 2024 Update

Space Intruders (Black Border Port) was published by Paul Farrow at Lightning Software in 2024
Original Space Intruders published by Macronics in 1981
Chapters
00:00 Intro
00:14 Original Space Intruders starts
01:15 The Black Border port starts
/ @villordsutch
Space Intruders (Black Border Port) can be found at Sinclair ZX World here - www.sinclairzxworld.com/searc...
Visit the ZX Resource Centre here - www.fruitcake.plus.com/Sinclai...
If you don't have a ZX81 but would like to play this then download EightyOne emulator for free here - sourceforge.net/projects/eigh...
If you want to support my retrogaming habit why not buy me something like Mastertronic game or something for a couple of quid here - ko-fi.com/villordsutch
You can also find me here -
Twitter - / villordsutch
Instagram - / villordsutch
#ZX81 #Retrogaming #spaceinvaders

[@Charlie-Cat.]

I love this Rod. I have to have this for the collection kind sir. Thank you for sharing this with us. 8^)
Anthony..

[@Villordsutch]

You're more than welcome Anthony.
Thank you for dropping a comment here too.

[@AgonBits]

I remember, back in the day, there was a hardware video mod you could do which inverted the output, so default would be white text on black background. But not in software. I can imagine how Paul has done it, but it is all devious code beyond my current skillset...

[@Villordsutch]

You can imagine better than me. I got as far as 10 MAKE BORDER 0 20 GOTO 10
Then I remember the ZX81 had no commands like this and I was knackered.

[@kitbuilder4004]

@@Villordsutch sounds like a legitimate command to me!! or maybe just, as per ZX Spectrum:
10 BORDER 0
;-)

[@Villordsutch]

I think we're onto Paul's programming together. He's fooled the ZX81 into believing it's a ZX Spectrum :D

[@jasedisgrace535]

Amazing feat of voodoo! Looks tons better. I cannot fathom how things like this can be possible. What next?

[@Villordsutch]

Well he's.... Wait.... I can't tell you...

[@retroluzzer]

Black border! When I was a kid I was always wondering if this would be possible. How is this done?

[@Villordsutch]

I've dropped a link to the ZX Resource Centre in the description above. Paul, the chap who runs both the site and created this port will be far better at explaining it.

[@retroluzzer]

@@Villordsutch I'm thrilled to learn more about it!