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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.
Werner