Re: [Bug 1239008] Re: qemu fails to scroll screen on ^Vidmem output
It is hosted on google code, a dying service. FreePascal(coffee) OS.A more basic version is posted there.I assume it works as the version that I last built did not for some reason. Sources should be there via subversion checkout.Thats what I tested with. https://code.google.com/p/coffee-os/ It uses a basic VRAM scroll buffer and writes to it. Examples are found elsewhere in C. (OS Dev pages) Im in the middle of a fedup upgrade at the moment, but will see what I can do. On 06/17/2015 12:11 PM, Chris J Arges wrote: Can you test with the latest version to see if this still affects you? If this still is a problem, any information on how to obtain the Guest OS in question that would also be helpful. ** Changed in: qemu (Ubuntu) Status: New = Incomplete -- You received this bug notification because you are a member of Ubuntu Server Team, which is subscribed to qemu in Ubuntu. https://bugs.launchpad.net/bugs/1239008 Title: qemu fails to scroll screen on ^Vidmem output To manage notifications about this bug go to: https://bugs.launchpad.net/qemu/+bug/1239008/+subscriptions -- Ubuntu-server-bugs mailing list Ubuntu-server-bugs@lists.ubuntu.com Modify settings or unsubscribe at: https://lists.ubuntu.com/mailman/listinfo/ubuntu-server-bugs
Re: [Bug 1239008] Re: qemu fails to scroll screen on ^Vidmem output
I dont know how to write it myself, but the original kernel scrolling code is in C. Might try OSDev forums. Not that I know of. On 11/27/2013 09:24 PM, Serge Hallyn wrote: Thanks for reporting this bug. Is there any other reproducer you can give us? ** No longer affects: kvm (Ubuntu) ** Also affects: qemu (Ubuntu) Importance: Undecided Status: New ** Changed in: qemu (Ubuntu) Status: New = Incomplete ** Changed in: qemu Status: New = Incomplete -- You received this bug notification because you are a member of Ubuntu Server Team, which is subscribed to qemu in Ubuntu. https://bugs.launchpad.net/bugs/1239008 Title: qemu fails to scroll screen on ^Vidmem output To manage notifications about this bug go to: https://bugs.launchpad.net/qemu/+bug/1239008/+subscriptions -- Ubuntu-server-bugs mailing list Ubuntu-server-bugs@lists.ubuntu.com Modify settings or unsubscribe at: https://lists.ubuntu.com/mailman/listinfo/ubuntu-server-bugs
[Bug 1239008] [NEW] qemu fails to scroll screen on ^Vidmem output
Public bug reported: Pascal uses ^Vidmem for B800 console output. The terminal does not oblige the Pascal OS code to scroll the output. Virtualbox emulation works, so this must be a qemu bug. Using QEMU in KVM mode as Ubuntu LTS. Source line to trip bug(in theory pushes VideoMem up one line): procedure Scroll; //this is whats causing crashes. FIXME:Virtualbox not affected.QEMU BUG? begin if scrolldisabled then exit; if (CursorPosY = 24) then begin //in case called before end of screen blank:= $20 or (TextAttr shl 8); Move((VidMem+(2*80))^,VidMem^,24*(2*80)); // Empty last line FillWord((VidMem+(24*2*80))^,80,Blank); CursorPosX:=1; CursorPosY:=23; update_cursor; end; end; ** Affects: qemu Importance: Undecided Status: New ** Affects: kvm (Ubuntu) Importance: Undecided Status: New ** Also affects: kvm (Ubuntu) Importance: Undecided Status: New -- You received this bug notification because you are a member of Ubuntu Server Team, which is subscribed to kvm in Ubuntu. https://bugs.launchpad.net/bugs/1239008 Title: qemu fails to scroll screen on ^Vidmem output To manage notifications about this bug go to: https://bugs.launchpad.net/qemu/+bug/1239008/+subscriptions -- Ubuntu-server-bugs mailing list Ubuntu-server-bugs@lists.ubuntu.com Modify settings or unsubscribe at: https://lists.ubuntu.com/mailman/listinfo/ubuntu-server-bugs
