Subject: Re: instruction emulation
To: Ignatios Souvatzis <ignatios@cs.uni-bonn.de>
From: Anders Magnusson <ragge@ludd.luth.se>
List: port-vax
Date: 08/17/2000 11:46:44
> On Wed, Aug 16, 2000 at 10:33:18PM +0200, Anders Magnusson wrote:
> > >
> > > I think the recent change to instruction emulation are a step in the right
> > > direction. However, instruction emulation should be the default. An
> > > NO_INSN_EMULATE should be defined to *not* include instruction emulation.
> > >
> > Yes, of course, I fully agree. There are very few VAXen that actually has
> > all available instructions (including G- and H-float). (730?)
>
> Not even 780?
>
No, you need a KE780 module to use G and H floats, otherwise there will
be a trap. F and D floats are however emulated in microcode if no
floating point accelerator is present.
-- Ragge