3cd
Subj : Re: scrolling slower in 32 bits mode than in 16.
To   : borland.public.cpp.borlandcpp
From : Bob Gonder
Date : Mon Mar 14 2005 06:40 pm

Morosh wrote:

>In fact, I had misexplained, the problem comes from printf itself, the
>printing is 10 times slower (not exactly the scrolling).
>in mode 16bits (bcc), one screen page display instantly
>in mode 32bits (bcc32), you could see the characters displaying (quickly)
>one by one but not instantly.

Oh, That!
Yes, it's slower.
Try it with
	for( i=32; i<20000; ++i ) // Changed to 20k
		 printf("%i \n",i); //changed with \n

and I see that the screen updates only a few times, about every 3000
lines.
The why of it is probably due to emulation.
The DOS version writes to "video memory", and Windows does it's best
to keep up, and propagate the changes to the console. It doesn't
always manage to keep up.
The Windows version, however, actually writes to the console. So it is
held back.

.

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