SuperH: -m4-nofpu flag

[Alexandre Oliva]

On Feb 15, 2001, NIIBE Yutaka <gniibe@m17n.org> wrote:

> In sh-elf, when -m4-nofpu is specified, __sh3__ (and __SH4_NOFPU__)
> are defined.  It looks weird for me to define __sh3__ for SH-4.

> Is there any reason why __sh3__ is defined with -m4-nofpu in sh-elf?

Well, the ISA of a FPU-less SH4 is pretty much the same as that of
SH3.  I believe that's the reason to define __sh3__.  When you need to
tell whether it's an FPU-less SH4 or an SH3, there's __SH4_NOFPU__.

-- 
Alexandre Oliva   Enjoy Guarana', see http://www.ic.unicamp.br/~oliva/
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