[texhax] Crosscompilation of TeX
Philip TAYLOR
P.Taylor at Rhul.Ac.Uk
Fri Mar 10 22:25:03 CET 2006
Karl Berry wrote:
> Is there any special requirement for TeX & Co. in terms of hardware.
>
> No.
>
> E.g. the ARM-processor does not contain a floating point unit.
>
> There is actually a long-standing (as in decades old) patch from Knuth
> to make the TeX code use only fixed point arithmetic. I admit I am not
> sure whether it's applied in the current distributions.
Interesting : I had completely forgotten that it uses floating point
at all ! Of course, it eschews floating point wherever it could
affect DVI output, but I see (on looking at the source) that there
are indeed some REAL variables, e.g.,
var s,@!t: real; {amount of slant}
@!g:real; {a glue ratio, as a floating point number}
** Phil.
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