Subject: Re: Dyslexic pmax mono?????
To: Jonathan Stone <jonathan@DSG.Stanford.EDU>
From: Andy Doran <ad@netbsd.org>
List: port-pmax
Date: 01/20/2000 23:17:28
NetBSD Bob writes (and also erroneously wrote as OpenBSD Bob :):

> >I installed the 1.4P pmax port on my DS3100 box, and the install went fine.
> >But, after the kernel was booted, the machine became dyslexic.  The characters
> >were positioned correctly, but the font was 180 degrees reversed front to back
> >around the vertical axis.  Rather strange to try to read.  Anyone have any
> >insights as to what might be causing that?  1.4P did fine on all my 5000
> >series machines. 

On Thu, 20 Jan 2000, Jonathan Stone wrote:

> The mono pmaxes have a smaller VRAM than the colour pmaxes. They pack
> eight one-bit pixels per byte.
> 
> The most likely cause is that Andy Doran's new, improved,
> better-faster, blit code isn't aware of the pixel bit-order within
> each 8-pixel byte of the mono pmax framebuffer.  (I vagely
> recall Ted mentioning the same thing when he was portmaster.)

What's being reported doesn't make sense - NetBSD Bob reports a vertical
flip.

up-down or left-right - which?