winedos/int10 clearscreen fix

[Ulrik Mikaelsson]

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> Are you sure you found the right place to fix? According to
> interrupt documentation, 0x0b subfunction 0x00 is supposed to only
> set background color. It is possible that the subfunction also clears
> screen but I would like you to make sure that this is the real place
> missing clear screen.
No, I am not sure at all. But it seems like whenever the application want a 
clearscreen this function is called.

> One place that is certain to have missing clear screen is entering
> text mode. Right now VGA emulation does not do this; VGA_SetAlphaMode
> should have a boolean flag that tells whether clear screen is desired or
> not and this flag should be set according to VGA mode bit 7 (or some
> VESA mode flag). I suspect that this is what is really causing the bug
> you have observed. Perhaps you should check whether this is the case?
I've tried adding the clear-code here, and the program didn't even start. I've 
tried removing the code and the program didn't start. I've tried to remove 
the winedos directory and the program still didn't start. 
I've also tried with another machince which had the program and wine installed 
and the program don't start there either (did yesterday and I haven't touched 
it since)

I'm afraid I can't test this for now. I guess it'll have to be postponed.

Regards
Ulrik
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