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Change instance name prefixes automatically

MF202512032436

Hi all,

I would like to change all instance name prefixes for a group of cells placed in a schematic:

Example:

All cells with the cell-name starting with "nch" (so n-MOS devices) should have the instance name prefix "N". The old prefix M or MN should be removed.

Thanks for your help

Martin

Parents
  • Andrew Beckett

    Martin,

    This code (that I threw together, so not especially polished) can do this easily enough:

    procedure(CCFrenameInsts(@key (cv geGetEditCellView()) cellPattern fromPattern replacement "gttt")
  let((
    (cellPat pcreCompile(cellPattern))
    (fromPat pcreCompile(fromPattern))
    instName changed
    )
    foreach(inst cv~>instances
      when(pcreExecute(cellPat inst~>cellName)
        instName=pcreReplace(fromPat inst~>name replacement 1)
        unless(inst~>name==instName
          inst~>name=instName
          changed=t
        )
      )
    )
    changed
  )
)

    You'd use it like this:

    CCFrenameInsts(?cellPattern "^nch" ?fromPattern "^MN?" ?replacement "N")

    The ?cellPattern is a regular expression for the matching cell names (i.e. begins with nch); the ?fromPattern is a regular expression for matching instance names (begins with M, followed by 0 or 1 N) and the replacement is what you want that part of the instance name to be replaced with.

    Andrew

Reply
  • Andrew Beckett

    Martin,

    This code (that I threw together, so not especially polished) can do this easily enough:

    procedure(CCFrenameInsts(@key (cv geGetEditCellView()) cellPattern fromPattern replacement "gttt")
  let((
    (cellPat pcreCompile(cellPattern))
    (fromPat pcreCompile(fromPattern))
    instName changed
    )
    foreach(inst cv~>instances
      when(pcreExecute(cellPat inst~>cellName)
        instName=pcreReplace(fromPat inst~>name replacement 1)
        unless(inst~>name==instName
          inst~>name=instName
          changed=t
        )
      )
    )
    changed
  )
)

    You'd use it like this:

    CCFrenameInsts(?cellPattern "^nch" ?fromPattern "^MN?" ?replacement "N")

    The ?cellPattern is a regular expression for the matching cell names (i.e. begins with nch); the ?fromPattern is a regular expression for matching instance names (begins with M, followed by 0 or 1 N) and the replacement is what you want that part of the instance name to be replaced with.

    Andrew

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