[ros-dev] HAL reorganisation

[Richard Campbell]

Keep in mind there is an XBOX emulator:  CXBX available at 
http://www.caustik.com/cxbx/, that, though incomplete, runs at least 1 
commercial game and might be complete enough to run an xbox port of 
ROS.  Also, i'm sure you already know about the OpenXDK at 
http://www.openxdk.org/.

Ge van Geldorp wrote:

>>From: Alex Ionescu
>>
>>There's also the problem with text-mode and the video in general, imo.
>>    
>>
>
>I think there are only 3 places where we use text-mode: FreeLdr, HAL and
>blue.sys. I've already adapted FreeLdr to simulate text-mode in
>graphics-mode (i.e. there is a routine which takes a char and an attribute,
>that routine looks up the char in a font table and sets the correct pixels
>in the frame buffer). Same could be used in HAL. To keep the code clean I'll
>probably write a Xbox specific version of blue.sys based on the same
>principle.
>
>The game plan for graphics mode is to first start using framebuf.dll and a
>custom video miniport driver. I see no problems there. It would be nice to
>be able to use the Windows nVidia driver later on. There are a few problems
>with that (driver will probably look for specific PCI vendor/device ids,
>might try to call INT10, might try to scan the video BIOS) but we'll cross
>that bridge when we get there.
>
>In general, right now I'm just following the execution flow of the kernel
>and when I hit a problem I try to solve it, one problem at a time. I still
>have good hope that it won't be necessary to put Xbox specific code in the
>kernel, but I'm not 100% sure about that. But, in the spirits of the
>beginnings of ReactOS (lots of talk but no code for FreeWin95 --> emphasis
>on writing code for ReactOS) it's enough to have a general feel for the
>direction we want to move in and start writing code.
>
>Gé van Geldorp.
>
>
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