Tjaart wrote,

>
> PIC
> ---
> Memory : Piecewise linear (read : banked)
> Stack : No access
> Push/Pop : No
> Deep : Dependant on part. Max 8 deep.
>
> SX
> --
> Memory : Piecewise linear (read : banked)
> Stack : No access
> Push/Pop : Yes

How is Push/Pop done on a SX?

> Deep : 8 deep.
>
> AVR
> ---
> Memory : Linear (read : no banking)
> Stack : In general purpose RAM
> Push/Pop : Yes
> Deep : Only limited by RAM size
>

One other important (for me) item here is the ability to
access program memory from within the program (for
checksumming program memory and easy table lookup).

Posibility to checksum program memory:

PIC (low and mid range): No
SX: Yes
AVR: ??? I don't know. Anybody else?
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