🚀 go-pugleaf

In article <1ae4klINNpph@agate.berkeley.edu> izumi@pinoko.berkeley.edu writes:
>My DSP gets interrupted 150,000 times per second with each sample
>being 12 or 16 bits, and 68040 doesn't even notice this unless
>something interesting happens in the input samples.

Is the DSP fielding interrupts at this rate, or is this while polling?
(polling is cheating)

>While I understand that not everybody needs the DSP, you should not
>be viewing it as something that is meant to perform a lot of
>computation.  It's an I/O peripheral interface, and a damn flexible
>one at that. 

It might be more flexible and easier to interface with if the "DSP"
was the same architecture as the host processor.  Even more so if
the host and DSP were in the same address space.

But of course, special purpose processors will be around
to kick butt on a general purpose processors for a particular class
of problems.  

What is the future of serial ports?  Most general purpose processors
can't keep up with the high interrupt rate.  Will a serial port
replacement eventually evolve... perhaps something like a serial
port version of SCSI?  What is the bandwidth of Apple Desktop Bus?

...Stuart