28 lines
760 B
Tcl
28 lines
760 B
Tcl
# extract.tcl
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#
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# Complete Magic extraction workflow:
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# 1. Load technology
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# 2. Load layout
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# 3. Extract parasitic capacitances (extract all → __CELL__.ext)
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# 4. Extract parasitic resistances (extresist all → __CELL__.res.ext)
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# 5. Write SPICE netlist (ext2spice → __CELL__.spice)
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#
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# __TECH__ and __CELL__ are substituted by extract.js before execution.
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tech load __TECH__
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load /work/__CELL__
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# Write all intermediate files to /work/ so ext2spice can find __CELL__.res.ext
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extract path /work
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extract all
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# extresist requires a valid box cursor; span the full layout to be safe
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select top cell
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extresist all
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ext2spice format ngspice
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ext2spice extresist on
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ext2spice cthresh 0
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ext2spice rthresh 0
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ext2spice /work/__CELL__
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