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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_buf.py
+13 -13
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@@ -112,12 +112,12 @@ class dff_buf(design.design):
mid_x_offset = 0.5*(a1_pin.cx() + q_pin.cx())
mid1 = vector(mid_x_offset, q_pin.cy())
mid2 = vector(mid_x_offset, a1_pin.cy())
self.add_path("metal3", [q_pin.center(), mid1, mid2, a1_pin.center()])
self.add_via_center(layers=("metal2","via2","metal3"),
self.add_path("m3", [q_pin.center(), mid1, mid2, a1_pin.center()])
self.add_via_center(layers=self.m2_stack,
offset=q_pin.center())
self.add_via_center(layers=("metal2","via2","metal3"),
self.add_via_center(layers=self.m2_stack,
offset=a1_pin.center())
self.add_via_center(layers=("metal1","via1","metal2"),
self.add_via_center(layers=self.m1_stack,
offset=a1_pin.center())
# Route inv1 z to inv2 a
@@ -126,14 +126,14 @@ class dff_buf(design.design):
mid_x_offset = 0.5*(z1_pin.cx() + a2_pin.cx())
self.mid_qb_pos = vector(mid_x_offset, z1_pin.cy())
mid2 = vector(mid_x_offset, a2_pin.cy())
self.add_path("metal1", [z1_pin.center(), self.mid_qb_pos, mid2, a2_pin.center()])
self.add_path("m1", [z1_pin.center(), self.mid_qb_pos, mid2, a2_pin.center()])
def add_layout_pins(self):
# Continous vdd rail along with label.
vdd_pin=self.dff_inst.get_pin("vdd")
self.add_layout_pin(text="vdd",
layer="metal1",
layer="m1",
offset=vdd_pin.ll(),
width=self.width,
height=vdd_pin.height())
@@ -141,7 +141,7 @@ class dff_buf(design.design):
# Continous gnd rail along with label.
gnd_pin=self.dff_inst.get_pin("gnd")
self.add_layout_pin(text="gnd",
layer="metal1",
layer="m1",
offset=gnd_pin.ll(),
width=self.width,
height=vdd_pin.height())
@@ -164,18 +164,18 @@ class dff_buf(design.design):
mid_pos = dout_pin.center() + vector(self.m1_pitch,0)
q_pos = mid_pos - vector(0,self.m2_pitch)
self.add_layout_pin_rect_center(text="Q",
layer="metal2",
layer="m2",
offset=q_pos)
self.add_path("metal1", [dout_pin.center(), mid_pos, q_pos])
self.add_via_center(layers=("metal1","via1","metal2"),
self.add_path("m1", [dout_pin.center(), mid_pos, q_pos])
self.add_via_center(layers=self.m1_stack,
offset=q_pos)
qb_pos = self.mid_qb_pos + vector(0,self.m2_pitch)
self.add_layout_pin_rect_center(text="Qb",
layer="metal2",
layer="m2",
offset=qb_pos)
self.add_path("metal1", [self.mid_qb_pos, qb_pos])
self.add_via_center(layers=("metal1","via1","metal2"),
self.add_path("m1", [self.mid_qb_pos, qb_pos])
self.add_via_center(layers=self.m1_stack,
offset=qb_pos)
def get_clk_cin(self):