[fpc-devel] BBB / PRUS / M3 and fpc

[Michael Schnell]

On 12/04/2013 09:26 AM, Mark Morgan Lloyd wrote:
>
> I'm not at all sure about this, but I think there are two distinct GCC 
> ports: one native (propgcc) and the other using the ZOG (ZPU) VM. I 
> think we need to be careful here lest we rehash the PRU confusion.
>
In fact I have no decent knowlage about Propeller. I just monitored the 
interesting discussion in the ZPU forum when Michael Rychlik started to 
do the ZPU VM.

BTW.: I once used another processor architecture with very limited 
directly accessible memory. Here the SDK provided a VM which emulated 
the processor itself, just with a different memory addressing scheme, 
and the normal C compiler for that arch could create code to run native 
and in the VM. Using the section attribute, could select visualization 
separately for each C function.

So I seemed to understand the reasons behind the Propeller ZPU VM.

-Michael