bonjour :-)
Le 2014-04-10 07:58, [email protected] a écrit :
What about:
function set_fbp (adde : screen_p) return boolean;
attribute foreign of set_fbp : function is "VHPIDIRECT set_fb";
constant dummy : boolean := set_fbp (pixel);
I don't see how it helps me or how it applies to my case :
a boolean is not a pointer, you're transmitting a access to C,
which is fine but how do you initialise this access ?
two possibilities : with new, or with a function.
i don't see how you can declare an access and initialise
it to point to a shared variable :-/
I have uploaded two examples that I've tried tonight:
http://ygdes.com/GHDL/access_c/ : variable in C, accessed from GHDL
http://ygdes.com/GHDL/direct_c/ : shared variable in a package,
accessed by C with extern
The last one is good but has one drawback : it
requires manipulations to extract the actual variable name
from objdump. I'd like to find a way to avoid that.
Tristan.
yg
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