[Simh] Moved my vaxuser to new standalone system and ...

[Mark Pizzolato]

On Tuesday, July 3, 2018 at 2:22 PM, James W. Laferriere wrote:
> On Tue, 3 Jul 2018, Mark Pizzolato wrote:
> >>  	One (poss.) odd question is it possible to scale up the qvss window
> >> so that it might (as close as possible) fit a new age screen ?  I
> >> understand there is physical limitation in the emulation in order to
> >> maintain appropriate original function .  But am hoping I might be
> >> able to scale the output for less eye abuse
> >
> > Well, the QVSS display has a  specific number of pixels total
> > (1024x864).  This cannot be changed.  In theory, a 2X pixel size could
> > be scaled to fit on a high resolution display.  We may look at that
> > after a new batch of changes to the simh video functionality have been
> digested.  This would not be a high priority.
> 
>  	Hmmm ,  Using even fractions 1+(1/2, 1/4, 1/8)*Resolution at least
> shows a result of a pure integer number of pixels ...  Only showing 1/2 & 1/4 's .
> Very NOT sure how well those'd work out tho ...
> 
> 1024*1.25 = 1280.00 (most sold monitors)
> 864*1.25  = 1080.00
> 
> 1024*1.50 = 1536.00 (2K and above maybe)
> 864*1.50  = 1296.00
> 
> 1024*1.75 = 1792.00 (3K iirc )
> 864*1.75  = 1512.00
> 
> 1024*2.00 = 2048.00 (4K Definately)
> 864*2.00  = 1728.00

Non integer multiples are probably not going to be useful (or 
considered) since all of that gets significantly more complicated 
(possibly ambiguous) with mouse tracking and pixel content scaling.

> > Meanwhile, the latest code now displays a useful failure message
> > rather than any SEGFAULT when the conditions you created happen.
> > - Mark
>  	Thank you .  I'll have to arrange for a new pull to be sent to me snail
> mail ,  I live on the far end of a very limited use link .

If it is costly for you to pick up the latest, then don't bother.  This fix is for 
the next person who ties themselves in a similar knot and hopefully will 
avoid leading them astray.

- Mark