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Altera_Forum's avatar
Altera_Forum
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13 years ago

Cannot find what does it mean $ and #

Hello! Please explain me what does mean operators $ and# in a such string:

aneb_result_wire[] = ((data_wire[0..0] $ data_wire[1..1])# (data_wire[2..2] $ data_wire[3..3]));

I have been seeking in all sources and nowhere found answer.

Thank you.

5 Replies

  • Altera_Forum's avatar
    Altera_Forum
    Icon for Honored Contributor rankHonored Contributor
    13 years ago

    --- Quote Start ---

    This isnt VHDL. what language are you refering to.

    --- Quote End ---

    Really??? I carefully looked on project and noticed, that some modules (and this one ) pointed as AHDL. I am beginner and didn't give heed to this.

    Thank you. And excuse me for my unvigilance.
  • Altera_Forum's avatar
    Altera_Forum
    Icon for Honored Contributor rankHonored Contributor
    13 years ago

    The $ is an exclusive or operator where the # is the 'normal' or operator, at least that is what they are in AHDL.

    For completeness: & is the and operator and ! is the not operator.
  • Altera_Forum's avatar
    Altera_Forum
    Icon for Honored Contributor rankHonored Contributor
    13 years ago

    --- Quote Start ---

    The $ is an exclusive or operator where the # is the 'normal' or operator, at least that is what they are in AHDL.

    For completeness: & is the and operator and ! is the not operator.

    --- Quote End ---

    Thank you !!!