From mboxrd@z Thu Jan 1 00:00:00 1970 Date: Tue, 9 Feb 1999 13:14:36 +0100 To: linuxppc-dev@lists.linuxppc.org, mklinux-development-system@public.lists.apple.com From: BenH Subject: NuBus PowerMacs and PDM video Message-Id: <19990209131436.011982@mail.mipsys.com> Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Sender: owner-linuxppc-dev@lists.linuxppc.org List-Id: Hi ! I'm doing some experiments with the MMU (learning it's usage). The goal is to add some better bootstrap code to BootX (get rid of the -622 error with MacOS VM) and to add support for the rather "special" memory mappings of the NuBus PowerMacs. However, I have a problem with the video on those machines: If I understand things correctly, the framebuffer is set by MacOS to physical address 0. This is a problem for us since we need to have some exception vectors and other things like that in this location. I beleive MkLinux booter moves it elswhere, but I don't know how to do that (I don't have infos about the chip and I don't have one of those machines to test with). Any clues ? -- E-Mail: BenH. Web : [[ 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. To unsubscribe from linuxppc-dev, send ]] [[ the message 'unsubscribe' to linuxppc-dev-request@lists.linuxppc.org ]]