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Clean up and generalize layer rules.

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Convert metalN to mN.
Generalize helper constants in modules for
space, width, enclose, etc.
Use layer stacks whever possible.
Try to remove drc() calls in liu of helper constants.
This commit is contained in:
Matt Guthaus
2019-12-17 11:03:36 -08:00
parent a79d03fef4
commit ed28b4983b
52 changed files with 604 additions and 578 deletions
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compiler/modules/dff_inv_array.py
+8 -8
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@@ -140,7 +140,7 @@ class dff_inv_array(design.design):
for row in range(self.rows):
for col in range(self.columns):
din_pin = self.dff_insts[row,col].get_pin("D")
debug.check(din_pin.layer=="metal2","DFF D pin not on metal2")
debug.check(din_pin.layer=="m2","DFF D pin not on metal2")
self.add_layout_pin(text=self.get_din_name(row,col),
layer=din_pin.layer,
offset=din_pin.ll(),
@@ -148,7 +148,7 @@ class dff_inv_array(design.design):
height=din_pin.height())
dout_pin = self.dff_insts[row,col].get_pin("Q")
debug.check(dout_pin.layer=="metal2","DFF Q pin not on metal2")
debug.check(dout_pin.layer=="m2","DFF Q pin not on metal2")
self.add_layout_pin(text=self.get_dout_name(row,col),
layer=dout_pin.layer,
offset=dout_pin.ll(),
@@ -156,7 +156,7 @@ class dff_inv_array(design.design):
height=dout_pin.height())
dout_bar_pin = self.dff_insts[row,col].get_pin("Qb")
debug.check(dout_bar_pin.layer=="metal2","DFF Qb pin not on metal2")
debug.check(dout_bar_pin.layer=="m2","DFF Qb pin not on metal2")
self.add_layout_pin(text=self.get_dout_bar_name(row,col),
layer=dout_bar_pin.layer,
offset=dout_bar_pin.ll(),
@@ -167,27 +167,27 @@ class dff_inv_array(design.design):
# Create vertical spines to a single horizontal rail
clk_pin = self.dff_insts[0,0].get_pin("clk")
clk_ypos = 2*self.m3_pitch+self.m3_width
debug.check(clk_pin.layer=="metal2","DFF clk pin not on metal2")
debug.check(clk_pin.layer=="m2","DFF clk pin not on metal2")
if self.columns==1:
self.add_layout_pin(text="clk",
layer="metal2",
layer="m2",
offset=clk_pin.ll().scale(1,0),
width=self.m2_width,
height=self.height)
else:
self.add_layout_pin_segment_center(text="clk",
layer="metal3",
layer="m3",
start=vector(0,clk_ypos),
end=vector(self.width,clk_ypos))
for col in range(self.columns):
clk_pin = self.dff_insts[0,col].get_pin("clk")
# Make a vertical strip for each column
self.add_rect(layer="metal2",
self.add_rect(layer="m2",
offset=clk_pin.ll().scale(1,0),
width=self.m2_width,
height=self.height)
# Drop a via to the M3 pin
self.add_via_center(layers=("metal2","via2","metal3"),
self.add_via_center(layers=self.m2_stack,
offset=vector(clk_pin.cx(),clk_ypos))
def get_clk_cin(self):