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Altera_Forum's avatar
Altera_Forum
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12 years ago

Wire assignment in verilog

Hi All,

When going through a reference design i encountered a particular type of wire assignment as follows.

data[92-:8]=a;

what does this part[92-:8] mean? is it actually 92:84 ie 92:(92-8)?

Thanks in advance

2 Replies

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

    You have it mostly correct, but it would actually be equivalent to data[92:85]. It means to include 8 bits total starting from data[92] and counting down. [92:84] would be 9 bits instead.

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

    --- Quote Start ---

    You have it mostly correct, but it would actually be equivalent to data[92:85]. It means to include 8 bits total starting from data[92] and counting down. [92:84] would be 9 bits instead.

    --- Quote End ---

    Thanks for confirming and making it clear