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[f-cpu] making things work

hi !

my local work directory has reached new size heights.
The (future) inclusion of Michael's assembler won't help :-P

Michael Riepe <michael@stud.uni-hannover.de> :
>On Sun, Sep 09, 2001 at 08:52:51PM +0200, whygee@club-internet.fr wrote:
>> >> Btw, i will have to modify your ASU (at least)
>> >> because things have evolved quite a bit in the last months...
>> >What exactly?  Please send patches if possible.
>> there are only a few changes necessary.
>> max_chunck_size for example.
>MAX_CHUNK_SIZE must currently be 64 -- the adder doesn't handle 32-bit
>(and probably never will -- it may be easier to write a separate 32-bit
>version, and let the EU_IMU wrapper entity include the appropriate one).

Yes but it seems that the symbolic names have been moved
or renamed or something like that. I'll have to fix that...

>> Btw i would like to 'split' the ASU into two parts,
>> so that the clocking can be done at a higher level.
>The stages are already separate processes (that is, they're easy to
>separate), and the pipeline register is concentrated at the end of the
>first stage.

would it be possible, then, to split the ASU in two files ?
i'll try when i can...

>> Or if it is possible to define (once again) a 'generic'
>> pipeline latch ... so as few changes as possible are necessary
>> if the latches have to change.
>That would mean that we have to use a register component again (I'd prefer
>a concurrent procedure, because it would make the code more readable, but
>some synthesis tools don't grok edge expressions in a procedure. *argh*).

I have the intention of doing the 'clocking' in the top level
VHDL file.

>> btw concerning your asm, it complains about some missing ELF
>> libraries :-(
>Didn't I mention that it won't compile? ;)   Before you try again,
>install the latest libelf pre-release from my homepage; the URL is
>But please do not publish this ANYWHERE!

i'm downloading the tgz.
will you put your asm on the GAOS CVS later/one day ?

Concerning the clock : using the 'ugly' architecture
is dangerous. I discovered that i had messed up the NCO loop.

I have moved the generic_adder stuff to a 'common' directory.
Reading it was very interesting and i discovered new VHDL
tricks... but i didn't know (reading the testbench) that
one could instanciate a procedure... Maybe i didn't understand
well because when i wanted to code a similar stuff,
the compilers complained. I'm still a newbie...

my snapshots are getting bigger and bigger all the time,
and i only concentrate on VHDL now. Your scripts are not
yet integrated.

I'll come back to France in two days, btw.

> Michael "Tired" Riepe <Michael.Riepe@stud.uni-hannover.de>
> "All I wanna do is have a little fun before I die"

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