26 Dec
2012
26 Dec
'12
11:40 a.m.
On 12/26/2012 10:56 AM, Al Kossow wrote:
There was also UCSD Pascal, from looking at the press
from the time. I
would guess they do EBCDIC translation when talking to printers, etc.
The display logic looks like it could be similar to the PC MDA.
Everything about the DW was EBCDIC, but EBCDIC is not a good choice for
CP/M file name characters (note particularly the "flags" used in the
file extension part of a directory entry--they're all high-bit flags and
uppercase alpha (and numerics) are Cx Dx Ex and Fx codes in EBCDIC.
My guess would be a mass of ASCII-to-EBCDIC and vice-versa conversions,
but I've never been able to verify it.
The DW had one of the best-feeling computer keyboards that I've ever
encountered, even if it was pretty bulky.
--Chuck