From: Jock Tanner <tanner.of.kha@gmail.com>
Date: Mon, 6 Apr 2020 03:48:13 +0000 (+0000)
Subject: Implement automatic AB.
X-Git-Tag: partial-core-ls180-gdsii~151
X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=52eb8fffac4bc8c4bfc9fa236e37b8553c4d51a1;p=soclayout.git

Implement automatic AB.
---

diff --git a/experiments7/doAlu16.py b/experiments7/doAlu16.py
index 1c1b616..5116f67 100755
--- a/experiments7/doAlu16.py
+++ b/experiments7/doAlu16.py
@@ -47,7 +47,7 @@ class AddSub(Module):
         """ Main routine. """
 
         with SessionManager():
-            self.init_abutment_box()
+            self.compute_ab()
             self.create_pins()
 
         if self.editor:
@@ -75,7 +75,7 @@ class ALU16(Module):
             return False
 
         with SessionManager():
-            self.init_abutment_box()
+            self.init_ab()
             self.place_submodules()
 
             # TODO: replace with some form of lazy evaluation?
@@ -99,7 +99,7 @@ class ALU16(Module):
         # then route (globally)
         # this connects up not just in the remaining (little) cells,
         # it connects *to add and sub and the outside world as well*
-        self.init_abutment_box()
+        self.init_ab()
         result = self.place_and_route()
 
         self.save()
@@ -110,7 +110,7 @@ def ScriptMain(editor=None, **kwargs):
     coriolis_setup()
 
     add = AddSub(
-        'add', editor, width=350.0, height=400.0,
+        'add', editor,
         north_pins=[
             {'net': 'a({})', 'x': 10.0, 'delta': 20.0, 'repeat': BIT_WIDTH},
             {'net': 'b({})', 'x': 20.0, 'delta': 20.0, 'repeat': BIT_WIDTH},
@@ -125,7 +125,7 @@ def ScriptMain(editor=None, **kwargs):
         },
     )
     sub = AddSub(
-        'sub', editor, width=350.0, height=400.0,
+        'sub', editor,
         north_pins=[
             {'net': 'a({})', 'x': 10.0, 'delta': 20.0, 'repeat': BIT_WIDTH},
             {'net': 'b({})', 'x': 20.0, 'delta': 20.0, 'repeat': BIT_WIDTH},
diff --git a/experiments7/utils.py b/experiments7/utils.py
index 60057f6..af4368d 100644
--- a/experiments7/utils.py
+++ b/experiments7/utils.py
@@ -135,6 +135,12 @@ class Module(object):
         """
         return DbU.toLambda(dbu)
 
+    def compute_ab(self):
+        """ Compute default abutment box without placement. """
+        etesian = Etesian.EtesianEngine.create(self.cell)
+        etesian.setDefaultAb()
+        etesian.destroy()
+
     def place(self):
         """ Places the current cell. """
         etesian = Etesian.EtesianEngine.create(self.cell)
@@ -190,7 +196,11 @@ class Module(object):
 
         if isinstance(repeat, int):
             if repeat > 1 and delta == 0.0:
-                raise Warning('You are trying to place pins on each other.')
+                raise Warning(
+                    '{}: you are trying to place pins on each other.'.format(
+                        self.name
+                    )
+                )
             iterator = range(repeat)
         else:
             iterator = repeat
@@ -215,10 +225,14 @@ class Module(object):
 
         return x, y
 
-    def init_abutment_box(self):
+    def init_ab(self):
         """ Create the abutment box with object's initial values. """
-
-        self.ab = Box(0, 0, self.to_dbu(self.width), self.to_dbu(self.height))
+        if self.width and self.height:
+            self.ab = Box(
+                0, 0, self.to_dbu(self.width), self.to_dbu(self.height)
+            )
+        else:
+            raise Warning('{}: Module size is not set.'.format(self.name))
 
     def create_pins(self):
         """ Creates all pins set on Module object creation. """
@@ -317,6 +331,7 @@ class Module(object):
 
         raise NotImplementedError('You need to implement the `build` method.')
 
+
 class Config:
 
     def __init__(self, priority=None):