[Roccc-discussion] System code compilation

[Giuseppe Cascone]

    Dear Jason, Dear all,

    I'm carrying out some experiments on C-to-VHDL compiling using
ROCCC and I wanted to ask a question about the compilation of
System code.

    I assume that the variables in System code that are written but not
read - let's say leaf nodes in the data flow graph - eventually become
output ports in the generated VHDL entity. Let's take as
an example the B array in the FIR-system example. If so, why does the
i variable in the cited example appear in the generated VHDL as
output port? I found that in the previous version of ROCCC, the 0.3
one, this does not happen, and the component declaration of the
FIR-system module in the testbench code doesn't show that output port
as well.

    I'd be grateful if you could help me.

    Kind regards,

    --
Giuseppe Cascone

Ph.D. Student

SecLab Group (Room 4.03)
Dipartimento di Informatica e Sistemistica
Università degli Studi di Napoli Federico II
via Claudio 21 - 80125 Napoli, ITALY

e-mail: giuseppe.cascone at unina.it
web: http://www.seclab.unina.it

Tel: +39 081 7683828
Cell: + 39 3208348400
Fax: +39 081 7683816

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   Dear Jason, dear all,

   I'm carrying out some experiments on C-to-VHDL compiling using  
ROCCC and I wanted to ask you a question about the compilation of  
System code.

   I assume that the variables in System code that are written but not  
read - let's say leaf nodes in the data flow graph - eventually become  
output ports in the corresponding VHDL entity generated. Let's take as  
an example the B array in the FIR-system example. If so, why does the  
"i" variable in the cited example appear in the generated VHDL as  
output port? I found that in the previous version of ROCCC, the 0.3  
one, this does not happen, and the component declaration of the  
FIR-system module in the testbench code doesn't show that output port  
as well.

   I'd be grateful if you could help me.

   Kind regards,

   --
Giuseppe Cascone

Ph.D. Student

SecLab Group (Room 4.03)
Dipartimento di Informatica e Sistemistica
Università degli Studi di Napoli Federico II
via Claudio 21 - 80125 Napoli, ITALY

e-mail: giuseppe.cascone at unina.it
web: http://www.seclab.unina.it

Tel: +39 081 7683829
Fax: +39 081 7683816
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