Re: [ros-dev] [ros-diffs] [aandrejevic] 66666: [NTVDM][FAST486] - Implement VDDInstallMemoryHook and VDDDeInstallMemoryHook using page guards. - Implement another API for memory hooks that should be faster than page guards ...

[Aleksey Bragin]

Allright, so NTVDM is evil.
Pretty good choice, as I wouldn't want to taint kernel or other 
important part of the system by 66666 commit made on Friday 13th... ;-)

Regards,
Aleksey Bragin

On 13.03.2015 20:57, [e-mail] wrote:
> Author: aandrejevic
> Date: Fri Mar 13 17:57:51 2015
> New Revision: 66666
>
> URL: http://svn.reactos.org/svn/reactos?rev=66666&view=rev
> Log:
> [NTVDM][FAST486]
> Implement VDDInstallMemoryHook and VDDDeInstallMemoryHook using page guards.
> Implement another API for memory hooks that should be faster than page guards
>
> (for NTVDM only).
> Adjust the VGA and EMS memory handlers to use this method.
> In Fast486, implement a method that will allow us to "rewind" the current instruction,
>
> in case it was interrupted by a memory hook page fault.
> Use a memory hook to protect the BIOS ROM from being written to.