update rtd build image

.readthedocs.yaml

@@ -1,7 +1,7 @@
 version: 2
 
 build:
-  os: "ubuntu-20.04"
+  os: "ubuntu-24.04"
   tools:
     python: "3.12"
   jobs:

src/kyupy/def_file.py

@@ -6,7 +6,7 @@ as an intermediate representation (:class:`DefFile` object).
 
 from collections import defaultdict
 
-from lark import Lark, Transformer, Tree
+from lark import Lark, Transformer
 
 from kyupy import readtext
 
@@ -85,6 +85,8 @@ class DefFile:
         self.pins = {}
         self.specialnets = {}
         self.nets = {}
+        self.design = ""
+        self.diearea = 0
 
 
 class DefTransformer(Transformer):
@@ -140,9 +142,11 @@ class DefTransformer(Transformer):
     def comp_stmt(self, args):
         name = args[0].value
         kind = args[1].value
-        point = args[2]
+        for aidx in range(2, len(args)):
-        orientation = args[3].value
+            if args[aidx] in ('PLACED', 'FIXED'):
-        self.def_file.components[name] = (kind, point, orientation)
+                point = args[aidx+1]
+                orientation = args[aidx+2].value
+                self.def_file.components[name] = (kind, point, orientation)
 
     def pins_stmt(self, args):
         pin = DefPin(args[0].value)
@@ -207,6 +211,7 @@ GRAMMAR = r"""
                 | /DIEAREA/ point+ ";"
                 | /ROW/ ID ID NUMBER NUMBER ID do_step ";"
                 | /TRACKS/ /[XY]/ NUMBER "DO" NUMBER "STEP" NUMBER "LAYER" ID ";"
+                | /GCELLGRID/ /[XY]/ NUMBER "DO" NUMBER "STEP" NUMBER ";"
                 | propdef | vias | nondef | comp | pins | pinprop | spnets | nets
 
     propdef: "PROPERTYDEFINITIONS" propdef_stmt* "END" "PROPERTYDEFINITIONS"
@@ -228,7 +233,9 @@ GRAMMAR = r"""
                         | "+" /VIA/ ID )* ";"
 
     comp: "COMPONENTS" NUMBER ";" comp_stmt* "END" "COMPONENTS"
-    comp_stmt: "-" ID ID "+" "PLACED" point ID ";"
+    comp_stmt: "-" ID ID ( "+" /PLACED/ point ID
+                         | "+" /FIXED/ point ID
+                         | "+" /SOURCE/ ID )* ";"
 
     pins: "PINS" NUMBER ";" pins_stmt* "END" "PINS"
     pins_stmt: "-" ID pins_opt* ";"
@@ -239,6 +246,8 @@ GRAMMAR = r"""
             | "+" /PORT/
             | "+" /LAYER/ ID point point
             | "+" /PLACED/ point ID
+            | "+" /FIXED/ point ID
+
 
     pinprop: "PINPROPERTIES" NUMBER ";" pinprop_stmt* "END" "PINPROPERTIES"
     pinprop_stmt: "-" "PIN" ID "+" "PROPERTY" ID STRING ";"
@@ -266,10 +275,10 @@ GRAMMAR = r"""
     wire: ID wire_opt points
     wire_opt: ( "TAPER" | "TAPERRULE" ID )? ("STYLE" ID)?
 
-    points: point ( point | points_via )+
+    points: point ( point | points_via_or_rect )+
-    points_via: ID ORIENTATION?
+    points_via_or_rect: ID ( ORIENTATION? | "(" (NUMBER|SIGNED_NUMBER|/\*/) (NUMBER|SIGNED_NUMBER|/\*/) (NUMBER|SIGNED_NUMBER|/\*/) (NUMBER|SIGNED_NUMBER|/\*/) ")" )
 
-    point: "(" (NUMBER|/\*/) (NUMBER|/\*/) NUMBER? ")"
+    point: "(" (NUMBER|SIGNED_NUMBER|/\*/) (NUMBER|SIGNED_NUMBER|/\*/) NUMBER? ")"
 
     do_step: "DO" NUMBER "BY" NUMBER "STEP" (NUMBER|SIGNED_NUMBER) (NUMBER|SIGNED_NUMBER)
 
@@ -284,9 +293,9 @@ GRAMMAR = r"""
     """
 
 
-def parse(text):
+def parse(text) -> DefFile:
     """Parses the given ``text`` and returns a :class:`DefFile` object."""
-    return Lark(GRAMMAR, parser="lalr", transformer=DefTransformer()).parse(text)
+    return Lark(GRAMMAR, parser="lalr", transformer=DefTransformer()).parse(text) # type: ignore
 
 
 def load(file):

src/kyupy/sim.py

@@ -204,6 +204,7 @@ class SimOps:
                 assert len(n.ins) <= 4, f'Too many input pins for node {n}. Map circuit to KYUPY techlib first using resolve_tlib_cells().'
                 in_idxs = [n.ins[x].index if len(n.ins) > x and n.ins[x] is not None else self.zero_idx for x in [0,1,2,3]]
                 if n in ppio2idx:
+                    in_idxs[1] = self.zero_idx
                     if 'dff' in n.kind.lower() or in_idxs[0] == self.zero_idx:
                         in_idxs[0] = self.ppi_offset + ppio2idx[n]
                     else:  # this is a PO that is also used within the circuit. Treat as normal fork with ref counting. TODO: check strip_forks=True case for this.