21 Apr
2010
21 Apr
'10
4:49 a.m.
Chuck Guzis wrote:
On 20 Apr 2010 at 16:33, allison wrote:
By null I meant if you read RDR: or wrote to PUN: the data would go
to the bit bucket and not to any device.
Allison
The AUX: device thing requires knowing what the
BIOS for that system
looks like. I've encountered systems where there was a null driver.
Sure, it wasn't a requirement to implement it and neither was IOBYTE.
But I assume that technical documentation exists for the UART/USART
that the N* has. By and large, those things are easy to program,
even if one's only tool is DDT. You could certainly do the job with
less.
I'm reminded of the DOS batch files that would
create programs with
nothing more than ECHO statements.
--Chuck