From mboxrd@z Thu Jan 1 00:00:00 1970 Message-ID: <37615D97.EF08C746@americasm01.nt.com> Date: Fri, 11 Jun 1999 15:03:51 -0400 From: "Jerry Quinn" MIME-Version: 1.0 To: Benjamin Herrenschmidt CC: linuxppc-dev@lists.linuxppc.org, mlan@cpu.lu Subject: Re: Q: control is a C&T 65550? References: <19990611180811.016528@mail.mipsys.com> Content-Type: text/plain; charset=us-ascii Sender: owner-linuxppc-dev@lists.linuxppc.org List-Id: Benjamin Herrenschmidt wrote: > > On Fri, Jun 11, 1999, Michel Lanners wrote: > [snip] > >What a shame! After all, the control hardware can be seen as a legacy > >device, being surpassed by any and all current video chips... or might > >Apple be hiding some really cool and powerful feature deep inside > >control? I doubt it.... > > I don't think so. There is however some kind of "graphic accelerator" for > control in MacOS, It's quite small, I don't know if it only provides > better blit routines optimised for non-cachable space, or eventually > hacks the MMU to make the fb space cahable (for bursts), I don't think > there's anything like a blitter or a DMA engine in control. Do you have any guess what the graphic accelerator for Platinum does? At the moment, platinum is also used just as a frame buffer. -- Jerry Quinn Tel: (514) 761-8737 jquinn@nortelnetworks.com Fax: (514) 761-8505 Speech Recognition Research [[ This message was sent via the linuxppc-dev mailing list. Replies are ]] [[ not forced back to the list, so be sure to Cc linuxppc-dev if your ]] [[ reply is of general interest. Please check http://lists.linuxppc.org/ ]] [[ and http://www.linuxppc.org/ for useful information before posting. ]]