It was quite an achievement and challenge to actually display across the borders to the main screen on the Atari ST and many experts simply said it could never be done because the Atari ST lacked any custom chips that were capable. Eventually demos were released that proved otherwise, the problem was it used a lot of processing time to achieve this from the 8Mhz Motorola 68000 processor and wasn't used much apart from in demos.
This demo inspired me - I always used my own 7 line sync scrolling routine a year or so after this for the decade demo and other such stuff... but I always remember seeing this demo and thinking this is impossible, then wanting to do better than the < 10% non sync time left for their routines :) (as you all know :) )
ST border history: 1. Lower: TEX, Super Neo Demo Show, Sep, 1987. 2. Right: TEX ,The Amiga Demo, March 1988 3. Upper: XXX-int. (?), XXX-demo, July 1988 4. Left: TNT, Death Of The Left Border, 1988 5. Full (unstable): Omega, Omega demo, dec 1988 6. Full: Level 16, Union demo, Jan 1989 7. Syncscroller: TCB, Cuddly Demos, April 1989 8. 4bit scynscroller: ST Conn, PYM, nov 1991 9. Interrupt-overscan: OVR, Froggies Over The Fence, 1993 10. Left STe 16px: DHS, Tyranny, 1993 11. STe overscan: DHS
Neil of Cor Blimey intros for Automation with top + bottom border removed were out before the XXX internation demo, though they had some timing issues on a few STs
If you read the Super Neo Demo scroller (which I suppose you are referring to) then you will see that it is the Alyssa rout used there. Eg, Alyssa did not release anything himself with the border trick, but TEX used it in that prod. If you have example of an Alyssa-release then please point me in that direction :)
@evldhs: There is something missing: December 1991 - lower border on monochrome by New Trend. This was achieved on the Swiss Alp Convention. I don't know if the demo has ever been released, we all coded screens for a monochrome-demo there.
It was quite an achievement and challenge to actually display across the borders to the main screen on the Atari ST and many experts simply said it could never be done because the Atari ST lacked any custom chips that were capable. Eventually demos were released that proved otherwise, the problem was it used a lot of processing time to achieve this from the 8Mhz Motorola 68000 processor and wasn't used much apart from in demos.
pjcnet 1 year ago
This demo inspired me - I always used my own 7 line sync scrolling routine a year or so after this for the decade demo and other such stuff... but I always remember seeing this demo and thinking this is impossible, then wanting to do better than the < 10% non sync time left for their routines :) (as you all know :) )
MDGriffster 1 year ago
evldhs 3 years ago 7
Neil of Cor Blimey intros for Automation with top + bottom border removed were out before the XXX internation demo, though they had some timing issues on a few STs
notdavesmith 2 years ago
I would be interested to know more precicley which intro this is and then ask The Law / CJ about the date it was released. Mucho interesting though.
evldhs 2 years ago
... and Alyssa was first to remove bottom border. read the early TEX scrolltexts...
notdavesmith 2 years ago
If you read the Super Neo Demo scroller (which I suppose you are referring to) then you will see that it is the Alyssa rout used there. Eg, Alyssa did not release anything himself with the border trick, but TEX used it in that prod. If you have example of an Alyssa-release then please point me in that direction :)
evldhs 2 years ago
@evldhs Wow you really know your stuff.
pjcnet 1 year ago
@evldhs: There is something missing: December 1991 - lower border on monochrome by New Trend. This was achieved on the Swiss Alp Convention. I don't know if the demo has ever been released, we all coded screens for a monochrome-demo there.
wwwgutemusikorg 5 months ago
@evldhs Nice list, thanks! 8. 4bit scynscroller: ST Conn, PYM, nov 1991 - can someone upload?
leoingson 4 months ago
Please rate and comment.
zeusgb 4 years ago