Am Freitag, 30. November 2018, 16:45:17 CET schrieb silverdr@wfmh.org.pl: > > On 2018-11-30, at 16:10, groepaz@gmx.net wrote: > >>> Does this happen all the time, regardless of whether the VIC is > >>> "blanked" > >>> (bit 4 of SCROLY if memory serves)? > >> > >> IIRC VIC always uses the second half of the cycles. [...] And naturally > >> the > >> refresh cycles need to be done, but they don't steal cycles. (See BA.) > > Yeah, but even if they don't steal cycles, they still need to touch address > bus... bummer. > >> Sprites are fetched > >> even when the screen is blanked and steal cycles. > > > > "screen is blanked" and "sprites are visible" are even independent things, > > ie you can blank the screen (VIC generates no badlines) but still display > > sprites. > > How is that? How do you get visible sprites on a blanked screen? works the same as opening upper/lower borders, you just write $1x first and $0x second. see the comment at the bottom here: http://codebase64.org/doku.php?id=base:upper_lower_borders its a very nice mode for certain demo effects :) -- http://hitmen.eu http://ar.pokefinder.org http://vice-emu.sourceforge.net http://magicdisk.untergrund.net Don't pay any attention to the critics. Don't even ignore them. <Sam Goldwyn>Received on 2018-11-30 20:00:07
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