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Re: [ft-devel] Porting Free Type on 8 Bit platform!

From: Werner LEMBERG
Subject: Re: [ft-devel] Porting Free Type on 8 Bit platform!
Date: Fri, 23 Sep 2005 23:29:49 +0200 (CEST)

> > You mean that all registers and operators are based on 8bit entities?
> yes all registers and operators are 8bit.

Hmm, I think there must be at least some 16bit entities for jumps and
similar things, right?

> i don't want to have support for all fonts but if i can compile it
> for a single font like say BDF that would be great!

Well, then I strongly suggest that you take the BDF module and adapt
it to your needs directly, avoiding the rest of FreeType altogether!

> > Nevertheless, the fixes should be trivial since we try hard to
> > avoid dependencies on a certain register depth to make FreeType
> > work on 16, 32, and 64bit architectures.
> can u elaborate more on register dependency of freetype? (i guess it
> would be for computational purpose)

Some operations like `x >> 8' only make sense if you have at least
16bit wide registers.


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