20 Aug
2016
20 Aug
'16
7:06 a.m.
On Fri, Aug 19, 2016 at 5:56 PM, Steven M Jones
<classiccmp at crash.com> wrote:
Somewhere I have a thing badged 'Princeton Ultra-X'. This is a pizza-box type
slab that goes under a VGA montor and links to a keyboard and mouse and is,
of course a standalone Xterminal.
It uses an 80188 for I/O (including 10Mbps ethernet). The Xserver is in EPROMs
and appears to run on the TMS34010 graphics processor.
-tony
Models Display Resolution Planes
Processor Coprocessor
------ ------- ---------- ------ --------- -----------
700/X Grayscale 19" 1024x768 8 34010/60MHz 80186/16MHz
700/X VGA Color 14" 640x480 8 34010/60MHz 80186/16MHz
700/X Hi-Res Color 16" 1024x768 8 34010/60MHz 80186/16MHz
Before anyone gets too excited about the blistering speed of the 60
MHz TMS34010, it should be noted that each TMS34010 instruction cycle
takes eight clock cycles, so the instruction cycle rate is only 7.5
MHz, and of course many instructions take multiple instruction cycles,
so the instruction rate is even lower. However, since it has a
graphics-optimized instruction set, it was still able to do some
things noticeably faster than the 16 MHz 80186 would have.