Commit Graph

10 Commits

Author SHA1 Message Date
Jean-Paul Chaput cafced2bf8 Katana manage wide wires, and they can also be symmetric.
* New: In Anabatic::AutoContact and the derived classes, manages wide
    wires. The contact self dimension itself according to the segments
    it is connected to. Special case for the AutoContactTerminal which
    also read the size of the component it is anchored upon.
      New refresh method "updateSize()" and flag CntInvalidatedWidth.
    to compute the size.
      In AutoContactTerminal, compute the constraint box according to
    the width of the segment.
* New: In Anabatic::AutoSegment, flags are now implemented as "static const"
    attributes of the class. The flags are stored into a uint64_t as
    they are more than 32.
      Added new flag "SegWide" and associated predicates.
* Change: In GCellTopology::_doHChannel() and GCellTopology::_doVChannel(),
    uses the simpler overload of AutoSegment::create() in order to detect
    the wire width automatically.
* New: In Katana::Manipulator, split insertToTrack() and forceToTrack()
    into a one-track method and a segment level method that iterate over
    the track span of the segment.
* New: In Katana::SegmentFsm, for each cost in the table, now allow access
    to a specific track. So the base functions have now two parameters:
    "icost" and "itrack" (has a cost can have multiple tracks in the case
    of wide segments).
* Change: In Katana::TrackElement, remove the index of the element inside
    it's track, as for a wide segment it will not be meaningful for the
    non-base track. This means that we have to use the Track::find()
    method each time instead.
      Remove the wide flag, as it is a duplicate of the one in AutoSegment.
      Added a getTrackCount() method to tell the number of track the
    segment is inserted into. Needed in the Track destroy step to delete
    a segment only when the last track that refers it is destroyed.
      Added getSymmetricAxis() to correct the computation of the symmetric
    base track in case of wide segment as the base track is not centered
    but the the leftmost one.
* Change: In Track::insert() insert wide segments in their whole track span.
* Change: In TrackCost, create an array of costs according to the segment
    track span.
* Change: In TrackSegment::create(), now activate the factory and create
    wide segments.
* Bug: In Katana::AutoSegments_Perpandicular, correct the debug indentation
    problem (ever shifting to the right).
2017-07-28 15:30:22 +02:00
Jean-Paul Chaput d07cdf03e9 Replace "unsigned int" by "Flags" in all AutoSegments collections.
* Change: In Anabatic::AutoSegments collections, change the type of all
    the flags that where in "unsigned int" (32 bits) to Flags (uint64_t)
    as there is now more than 32 flags for functions.
* New: In Ababatic::Constants, added new flag Flags::WithPerpands, which
    makes the number of flags tip over 32 bits, thus making mandatory
    to uses Flags and not unsigned int.
* New: In Anabatic::AutoSegments_Perpandiculars, manage a new flag
    Flags::WithDoglegs to allow to propagate through global segments that
    are connecteds via doglegs on local segments. Meaning that there is
    a good chance that they could be aligned.
      Slighly change the way we propagate on aligned segments: no longer
    check for VTee or HTee, but only for same direction and layer as
    master.
* New: In Anabatic & Katana, replace all the "int", "long" and their
    variants by the less implementation ambiguous "int32_t", "int64_t"
    (and variant). This should help to better detect bit trucation in
    flags.
      Use the type to give a hint about the flags kind:
        - Type "Flags", for flags shared among Anabatic & Katana
          functions/methods (may also appear in some objects states).
        - Type "uint32_t" for flags belonging to an object internal
          state of from Hurricane functions flags (those should be
          grouped in a Flag subclass in a perfect world).
2017-05-16 14:53:33 +02:00
Jean-Paul Chaput dc46340d6a Redesigning access to analog terminals in devices.
* New: In Anabatic::AutoContact, added forceOnGrid() method to allow
    a AutoContactTerminal to be set (and fixed) outside it's constraint
    Box. Be aware that this may generate gaps in the routing.
      Stored using the UserNativeConstraints mechanism.
* New: In Anabatic::Session() new method getNearestgridpoint() to
    easily compute the nearest grid point from a position.
* Change: In Anabatic::AutoSegment::_revalidate(), use layer mask to
    compute the spin of the segment instead of the layers (more robust
    for analogic).
* New: In ::GCellTopology::doRp_Access() new method to create terminal
    contacts in _doDevice(). Issue more warnings and force the terminal
    to on grid (even if it create gaps). This a temporary hack.
2016-10-05 23:43:07 +02:00
Jean-Paul Chaput 47c9961ef3 First intergration of the Analogic router parts.
* New: In Anabatic::AutoSegment, introduce a the kind (associated to a
    flag) "LongLocal". Analog GCells can be very wide, so at least some
    carefuly choosen long local segments must be took into account as
    attractors in the computation of the optimal axis.
* New: In Anabatic::AutoSegment::computeOptimal(), take LongLocal into
    account as attractors.
* Change: In ::GCellTopology constructors compare the layers of the
    RoutingPads using layer masks instead of Layer pointers. Allows to
    find both "METALx" (symbolic) and "metalX" (real).
* Change: In ::GCellTopology::_doHChannel(), _doChannel(), _doStrut()
    and _doDevice(), tag long locals as "LongLocal". This need to be
    reviewed as it as bind done a bit too quickly.
* Change: In Anabatic::AutoSegment, due too a much bigger span of the
    analogic GCells the _optimalMin & _optimalMax bitfields must use
    16 bits instead of 8 (they where overflowed).
* New: In Katana, reorganisation of the initialization procedure to fit
    both digital and analogic cases. Create an analogInit() method.
* Change: In Katana::RoutingEvent, the _tracksNb and _tracksFree bitfields
    where too short for the Analog GCell size, now uses 16 bits instead of
    6.
* Bug: In Katana::GraphicKatanEngine::drawGCell(), skip drawing of a
    GCell if *both* width and height are under 150 pixels.
* New: In Katana::Session, add a new isOpen() method.
2016-10-04 17:12:58 +02:00
Jean-Paul Chaput 35c2e18f39 Implement AutoContact restriction using DbU instead of deltas (8 bits). 2016-09-22 14:16:53 +02:00
Jean-Paul Chaput bff9a38742 Forgot to perform Track re-order after removing zero-length segments.
* Change: In Anabatic::Autocontact, replace getMinDepth() and
    getMaxDepth() by getDepthSpan().
* New: In Anabatic::AutoSegment::canMoveUp(), add an optional check of
    low up density (Flags::CheckLowUpDensity). Allows to move up a
    segment if the up density is (very) low, and in this case it's more
    efficient than breaking it to fit in the lower layer.
      canMoveUp() is now able to perform the same work as canPivotUp()
    if *not* supplied the flag Flags::IgnoreContacts.
* New: In Katana, in GlobalRouting::DigitalDistance() now take into
    account the cost of a VIA (currently set to 2.5). Need to known the
    Net currently routed in the DigitalDistance object itself.
* Change: In Katana::Track::Element::canPivotUp(), now also takes a flag
    parameter.
* Change: In Katana::Manipulator, new flag IgnoreContacts to mirror the
    one of Anabatic.
* Change: In Katana::SegmentFsm, allocate once a Manipulator object instead
    of many times on the fly.
      In SegmentFsm::_slackenGlobal(), in the slacken state, if the up
    density is (very) low, bypass to move up instead of slackening.
    This solve better the routing of the control part of the register file.
    The register file having a pathological case of terminal placement:
    many punctual terminals aligneds in METAL2 *and* a grid of METAL2 and
    METAL3 blockages near below...
* Bug: In Katana::Session::_revalidate(), after removing the zero-length
    segments, forgot to re-order the track, leading to many stranges effects
    as the indexes where no longer coherent in the Track.
2016-09-20 11:30:45 +02:00
Jean-Paul Chaput 44500a2329 Correct management of last E/N GCell boundaries.
* Bug: In Anabatic::GCell, new functions getConstraintUMax() to return the
    correct bounding box for the last north/east GCell. The GCells do not
    own their north/east edges, except for the last ones. Thoses functions
    must distinct from getUMax() because for them, the shrink is always
    applied. getConstraintBox() uses the "getConstraintUMax()" functions.
* Bug: In Anabatic::AutoContact, initialize the constraint box from the
    new GCell::getConstraintUMax(), to manage correctly the boundaries
    of the nothernmost & easternmost GCells. The problem was showing for
    pins on the north/east side of a circuit, the constraint
* Bug: In Anabatic::AutoContactHTee, Anabatic::AutoContactVTee and
    Anabatic::AutoContactTerminal forgot to call the _preCreate() function
    in the various create().
* Bug: In Matrix::getUnder(), if on the N/E boundary, decrease by one to
    be enclosed in it.
2016-08-27 15:59:12 +02:00
Jean-Paul Chaput 84dad2249e Anabatic transient commit 14. Change model for long wires.
* Change: In Anabatic:
    - Long wires, going straight accross multiple GCells were splitted
      into a long sequence of segment+contact, one for each gone-through
      GCell. It was memory-consuming and algorithmically inefficient.
      Now there is only one straight wire.
        As a consequence, Edges now store the list of all segments
      going through them. That way we do not need to load a Net into
      Dijkstra before riping up some of it's segment. The ripup mechanims
      can now be implemented right at AnabaticEngine level, without
      dependencies over Dijkstra. Note that long wires are automatically
      broken in two if we need to attach a new branch on it (breakAt()).
      And fused back into one if a branch is removed (unify()).
2016-07-30 12:15:49 +02:00
Jean-Paul Chaput 9808fb12b2 Solve the template lookup problem in tstream.
* Bug: In Hurricane, in tstream (Commons.h), in the *template* overload of
    operator<<(), do not use the operator<<() of ostream as it will be
    looked up in "stage 1" (template definition) and so will miss all the
    overloads added later and built over getString<>(). Instead, make use
    of getString<>(), which, as another template will be looked up in
    "stage 2" (template instanciation) and at that point will have all the
    needed template specialisation of getString<>().
      We also need to define new stream manipulators to be able to create
    a matching template overload not dependant from the implementation.
    To avoid name clashes, we prefix a 't'. For now, only 'tsetw()' is
    refined.
      As a side effect, we cannot directly print bit-fields into the stream,
    we must go through an intermediate variable (happens once in AutoContact).
2016-07-19 16:02:55 +02:00
Jean-Paul Chaput 9114766129 Anabatic transient commit 11. Merge Katabatic into Anabatic.
* New: In Anabatic, merge in the Katabatic tool. The merge is not complete
    yet. Only basic capabilities have been moved.
2016-07-18 14:48:37 +02:00