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Merged with dev. Fixed conflicts in tests.
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@@ -132,40 +132,14 @@ class bitcell_array(design.design):
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# increments to the next row height
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offset.y += self.cell.height
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# For every second row and column, add a via for vdd
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# For every second row and column, add a via for gnd and vdd
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for row in range(self.row_size):
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for col in range(self.column_size):
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inst = self.cell_inst[row,col]
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for vdd_pin in inst.get_pins("vdd"):
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# Drop to M1 if needed
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if vdd_pin.layer == "metal1":
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self.add_via_center(layers=("metal1", "via1", "metal2"),
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offset=vdd_pin.center(),
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rotate=90)
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# Always drop to M2
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self.add_via_center(layers=("metal2", "via2", "metal3"),
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offset=vdd_pin.center())
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self.add_layout_pin_rect_center(text="vdd",
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layer="metal3",
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offset=vdd_pin.center())
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# For every second row and column (+1), add a via for gnd
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for row in range(self.row_size):
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for col in range(self.column_size):
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inst = self.cell_inst[row,col]
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for gnd_pin in inst.get_pins("gnd"):
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# Drop to M1 if needed
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if gnd_pin.layer == "metal1":
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self.add_via_center(layers=("metal1", "via1", "metal2"),
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offset=gnd_pin.center(),
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rotate=90)
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# Always drop to M2
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self.add_via_center(layers=("metal2", "via2", "metal3"),
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offset=gnd_pin.center())
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self.add_layout_pin_rect_center(text="gnd",
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layer="metal3",
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offset=gnd_pin.center())
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for pin_name in ["vdd", "gnd"]:
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for pin in inst.get_pins(pin_name):
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self.add_power_pin(pin_name, pin.center(), 0, pin.layer)
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def analytical_delay(self, slew, load=0):
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from tech import drc
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