Sujet : Re: Is Intel exceptionally unsuccessful as an architecture designer?
De : ldo (at) *nospam* nz.invalid (Lawrence D'Oliveiro)
Groupes : comp.archDate : 20. Sep 2024, 22:33:47
Autres entêtes
Organisation : A noiseless patient Spider
Message-ID : <vckpnr$18k7r$3@dont-email.me>
References : 1 2 3 4 5 6 7 8 9 10 11 12 13 14
User-Agent : Pan/0.160 (Toresk; )
On Fri, 20 Sep 2024 09:55:53 +0200, Terje Mathisen wrote:
Lawrence D'Oliveiro wrote:
>
The way I understood to do flicker-free drawing was with just two
buffers -- “double buffering”. And rather than swap the buffer
contents, you just swapped the pointers to them.
If you cannot swap the buffers with pointer updates ...
Surely all the good hardware is/was designed that way, with special
registers pointing to “current buffer” and “back buffer”, with the display
coming from “current buffer” while writes typically go to “back buffer”.
Why would you do it otherwise?