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UID:pretalx-romhack-camp-2026-XQUFNN@cfp.romhack.io
DTSTART;TZID=CET:20261003T192000
DTEND;TZID=CET:20261003T200000
DESCRIPTION:How it was possible to have more that one independent scrolling
  plane in a C64 videogame? How it was possible to have more than the 8 dec
 lared sprites in a 50 frames per second game? We will explore the tricks a
 nd the strategies applied by most of the games of the C64 era\, including 
 my shoot-em-up game Catalypse. We will discuss about charset maps\, double
  buffering\, shifting chars but also about the software interrupts\, the s
 ynchronized drawing opportunities given by the VIC II graphic chipset and 
 the real-life sorting algorithm choices\, everything constrained inside a 
 complete screen raster time
DTSTAMP:20260921T191305Z
LOCATION:STAGE 2 (Ghost in the Shellcode)
SUMMARY:The miracle of Plane and Sprite Multiplication - Andrea Pompili
URL:https://cfp.romhack.io/romhack-camp-2026/talk/XQUFNN/
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