pouët.net

Optimus information 13740 glöps

• general:
• level: user
• personal:
• first name: Michael
• last name: Byte
• portals:
• csdb: profile
• slengpung: pictures
• zxdemo: profile
• demozoo: profile
• cdcs:
• cdc #1: Contrast by Oxygene [web]
• cdc #2: Robotnik by Rage [web]
• cdc #3: Fruit Cake by Deus [web]
• cdc #4: Heart Core by Illi Recentes ImperatoreS
• cdc #5: Stargazer by Orb [web] & Andromeda [web]
• cdc #6: Extatique by adinpsz [web]
• cdc #7: Batman Forever by Batman Group
• cdc #8: Artphosis by Hitmen [web]

• demo BBC Micro Demo 128 by The Master [web]
• Many nice 2d effects and 3ds. I am unfamiliar with Acorn BBC 8bit though I am interested about them because I love Acorn computers, specifically the archimedes brand, I dont know why :)
• rulezadded on the 2011-04-03 21:33:52
• demo Commodore 64 Batplot by Adam West Group
• :)
• rulezadded on the 2011-04-02 18:00:03
• demo Nintendo 64 MGC 2011 demo by Retroactive [web]
• You don't see everyday a N64 that is more close to a real demo. Some nice scenes even if the polygons dissapear in the landscape and also needs more design.
• rulezadded on the 2011-03-31 09:59:47
• 64k game Windows SpaceRace by NML
• Cool! Well done!!! Crazy track gave me motion sickness but it was to be expected :)
• rulezadded on the 2011-03-29 13:04:08
• 4k game Windows TubeRoll
• Nice timewaster for a while, though you can't loose, there is not much challenge.
• isokadded on the 2011-03-29 11:12:03
• demo Commodore 64 Teen Dreams by Noice [web]
• Big mistake.
  Should not be STA $address,X but most probably STA (zero page),Y where in the zero page some_C64_Y_address(SIN(t)) is stored and Y moves you on x coord. You may only have to scroll these addresses inside the zero page after each frame but that's just 254 bytes. There gotta be other ways with this, gotta try to test before thinking in theory. But in any case it's less than 7 cycles.
  
  I have noticed the pattern that made me original think the dots were symmetric. They are not but you see a similarity in four quadrants, maybe because the sine is small to fit in zero page if this is how I think it's done here.
• isokadded on the 2011-03-29 10:53:48
• demo Commodore 64 Teen Dreams by Noice [web]
• Quote:

  Indeed a 128 x 128 area is quite small and gives at most: 128 / 8 * 128 = 2048 bytes to clear in a brute force clearing code.

  
  
  That's what I thought at first too.
  A series of STA $address 4 cycles. 2048 * 4 = 8192 cycles.
  
  8192 / 1123 = 7.29. This would be similar to spend around 7 cycles per dot erase. I think a fast routine would be something like a series of STA $address, X per dot which is 5 cycles. I am not entirely sure, I was thinking of this kind of dot rendering (stationary on X, oscillating on Y).
• isokadded on the 2011-03-29 10:43:18
• invitation Commodore 64 Isterinvite 2011 by Genesis Project [web]
• Nice
• rulezadded on the 2011-03-27 21:10:25
• demo Amstrad CPC Batman Forever by Batman Group
• @vibrator: well it was, just greetings :)
  As for z80/6502 it depends on what effect you want to do. If your reference was 2Mhz 6510 then yes, in some cases it might be faster than 4Mhz z80 and in others slower.
• isokadded on the 2011-03-26 16:37:25
• intro Amstrad CPC Hello world by FRequency [web]
• Motivational thumb up. I like the picture.
• rulezadded on the 2011-03-26 16:31:36