> ] So something like "PUSH HL: POP IX" won't work properly?  Oh yes, the
> ] memory is mirrored so that might be OK.  But still, how does the Sam's
> ] own processor know how long to wait before it can read things?
>
> Yes, it will...

Erm... yep, you're right.  Hadn't thought it thru' properly -- but
the FIFO is still something we were only *thinking* about. It's
nothing definite yet. The rest of the design holds.

> And the point is that the z80 in the sam doesn't work at all -- at least,
> that was my understanding of the operation.

Uhuh -- you're right. Picture This:

            BUSRQL o-----------------------------o GND
                            ^ PCB track
                   ^ pad                         ^ pad

 *grins*

> ] Maplins sell large memory SIMMs which seem to be quite cheap at the
> ] moment :-)
>
> Yup... I was going to suggest that myself, actually. I was even thinking of
> `doing' my own SIMM upgrade board for the SAM.

*smiles* anybody wanting to knock out cheap 1Mb's is quite welcome to
do so. BtW: We'll be producing the SAM Bus soon. Let's get the
accelerator and the midget out of the way first tho' :)

> Geoff               ([EMAIL PROTECTED] / [EMAIL PROTECTED] -- INET)

Si
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