What is "Symbol" in SKILL?

[Reotaro Hashemoto]

Hi,

I want to understand the meaning of "symbol" in Skill and importance
of it. I will appreciate if any one explained it to me.

Thanks and regards,
Ahmad

 

[Riad KACED]

Ahmad,

I'm not really sure about it but my attempt is :
A symbol is graphical interface to a design data.
The symbol is generally a black box (even it has other shapes ...)
that holds a given data and offers a set of pi/properties to interface
with the external world.
The design data could be :
1. A spice model for example. The "nmos" symbol from your CDS
analogLib can call a BSIM3 model, a CDL model and stuff ...
2. A piece of design or sub-design you pack into a box to make it
easier to include in a hierarchy. The sub-design itself could be made
by other symbils/primitives, ASCII file, like a verilog/VHDL/DSPF ....
etc.

Wow, It's not an easy question actually, Hope I was not rubbish in my
explanation ;-)

Well I would say that a symbol for a design data is what the body is
for a car. I know... I'm not good in poesy either ...
Hope other folks will help, I'm afraid y're going any further with my
explanation ...

God luck anyway !

Riad.

 

[Marc Heise]

Riad KACED wrote:

Ahmad,

I'm not really sure about it but my attempt is :
A symbol is graphical interface to a design data.
The symbol is generally a black box (even it has other shapes ...)
that holds a given data and offers a set of pi/properties to interface
with the external world.
The design data could be :
1. A spice model for example. The "nmos" symbol from your CDS
analogLib can call a BSIM3 model, a CDL model and stuff ...
2. A piece of design or sub-design you pack into a box to make it
easier to include in a hierarchy. The sub-design itself could be made
by other symbils/primitives, ASCII file, like a verilog/VHDL/DSPF ....
etc.

Wow, It's not an easy question actually, Hope I was not rubbish in my
explanation ;-)

Well I would say that a symbol for a design data is what the body is
for a car. I know... I'm not good in poesy either ...
Hope other folks will help, I'm afraid y're going any further with my
explanation ...

God luck anyway !

Riad.

You misunderstood him. He was asking for the documentation:

SKILL Language User Guide, Chapter 4 "Data Structures"


Regards,
Marc

 

[Reotaro Hashemoto]

On Apr 22, 10:22 am, Marc Heise <mhe...@DcOaNdTeSnPcAeM.cMoEm> wrote:

Riad KACED wrote:
Ahmad,

I'm not really sure about it but my attempt is :
A symbol is graphical interface to a design data.
The symbol is generally a black box (even it has other shapes ...)
that holds a given data and offers a set of pi/properties to interface
with the external world.
The design data could be :
1. A spice model for example. The "nmos" symbol from your CDS
analogLib can call a BSIM3 model, a CDL model and stuff ...
2. A piece of design or sub-design you pack into a box to make it
easier to include in a hierarchy. The sub-design itself could be made
by other symbils/primitives, ASCII file, like a verilog/VHDL/DSPF ....
etc.

Wow, It's not an easy question actually, Hope I was not rubbish in my
explanation ;-)

Well I would say that a symbol for a design data is what the body is
for a car. I know... I'm not good in poesy either ...
Hope other folks will help, I'm afraid y're going any further with my
explanation ...

God luck anyway !

Riad.

You misunderstood him. He was asking for the documentation:

SKILL Language User Guide, Chapter 4 "Data Structures"

Regards,
Marc

Thank you all, but I exactly mean Marc's answer
Thank you Riad .. You're perfect anyway

Regards
Ahmad

 

[Riad KACED]

Hi Ahmad and Marc,

I'm really laughing about myself ... What's a shame :-(
Ás we say in French : J'etais a cote de la plaque !! (Was on the wrong
track !)
I'm very sorry for misunderstanding you, I think my brain turns off
after midnight.
I'm gonna try to better read the questions in the future.
Anyway, hope you've enjoyed my philosophical debate on this ... stupid
"SYMBOL".

Riad.