45 lines
1.2 KiB
Plaintext
45 lines
1.2 KiB
Plaintext
ENTITY o4_x4 IS
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GENERIC (
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CONSTANT area : NATURAL := 2000;
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CONSTANT transistors : NATURAL := 12;
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CONSTANT cin_i0 : NATURAL := 12;
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CONSTANT cin_i1 : NATURAL := 12;
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CONSTANT cin_i2 : NATURAL := 12;
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CONSTANT cin_i3 : NATURAL := 12;
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CONSTANT tphh_i3_q : NATURAL := 717;
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CONSTANT rup_i3_q : NATURAL := 890;
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CONSTANT tpll_i3_q : NATURAL := 533;
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CONSTANT rdown_i3_q : NATURAL := 800;
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CONSTANT tphh_i2_q : NATURAL := 646;
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CONSTANT rup_i2_q : NATURAL := 890;
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CONSTANT tpll_i2_q : NATURAL := 609;
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CONSTANT rdown_i2_q : NATURAL := 800;
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CONSTANT tphh_i0_q : NATURAL := 570;
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CONSTANT rup_i0_q : NATURAL := 890;
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CONSTANT tpll_i0_q : NATURAL := 635;
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CONSTANT rdown_i0_q : NATURAL := 800;
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CONSTANT tphh_i1_q : NATURAL := 489;
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CONSTANT rup_i1_q : NATURAL := 890;
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CONSTANT tpll_i1_q : NATURAL := 640;
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CONSTANT rdown_i1_q : NATURAL := 800
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);
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PORT (
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i0 : in BIT;
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i1 : in BIT;
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i2 : in BIT;
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i3 : in BIT;
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q : out BIT;
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vdd : in BIT;
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vss : in BIT
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);
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END o4_x4;
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ARCHITECTURE behaviour_data_flow OF o4_x4 IS
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BEGIN
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ASSERT ((vdd and not (vss)) = '1')
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REPORT "power supply is missing on o4_x4"
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SEVERITY WARNING;
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q <= (((i0 or i1) or i2) or i3) after 1300 ps;
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END;
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