Re: pbulk bootstrap: `awk` running into FP overflow during bison build (Grater picture: How to bootstrap pkgsrc / pbulk?)

[Anders Magnusson <ragge%tethuvudet.se@localhost>]

Den 2023-08-07 kl. 18:49, skrev Johnny Billquist:
> On 2023-08-07 13:34, Anders Magnusson wrote:
> > Den 2023-08-07 kl. 13:31, skrev Maciej W. Rozycki:
> > >   Overall I think we ought to support both, but it might be a bit 
> > > tricky on
> > > the toolchain side, as it's an ABI issue to sort out.  Did any machine
> > > actually implement H_floating in hardware, or was it only ever 
> > > emulated?
> > The 780 had H-float in hardware.  Actually, it had all instructions 
> > in hardware (microcode).
>
> The 780 had H-float as an option, I think. The 730 might always have 
> had it, but otherwise the default answer for me for any of these 
> questions is always the 86x0. It had everything in hardware (well, ok, 
> microcode), except things like vector instructions, which hadn't been 
> defined when the machine was sold. Fairly sure it was the machine with 
> the most of all VAX stuff done in hardware.
Hm, maybe, long time ago.
I remember there was a floating point accelerator (on both 780 and 750), 
but everything was in microcode if the accelerator was not present.

-- R