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Added Xilinx bram black-box modules

This commit is contained in:
Clifford Wolf 2015-04-06 08:44:30 +02:00
parent c0e2b3eb11
commit 4389d9306e
3 changed files with 322 additions and 0 deletions
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1
techlibs/xilinx/Makefile.inc
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@ -5,5 +5,6 @@ $(eval $(call add_share_file,share/xilinx,techlibs/xilinx/cells_map.v))
$(eval $(call add_share_file,share/xilinx,techlibs/xilinx/cells_sim.v))
$(eval $(call add_share_file,share/xilinx,techlibs/xilinx/brams.txt))
$(eval $(call add_share_file,share/xilinx,techlibs/xilinx/brams_map.v))
$(eval $(call add_share_file,share/xilinx,techlibs/xilinx/brams_bb.v))
$(eval $(call add_share_file,share/xilinx,techlibs/xilinx/arith_map.v))

319
techlibs/xilinx/brams_bb.v Normal file
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@ -0,0 +1,319 @@
module RAMB18E1 (
input CLKARDCLK,
input CLKBWRCLK,
input ENARDEN,
input ENBWREN,
input REGCEAREGCE,
input REGCEB,
input RSTRAMARSTRAM,
input RSTRAMB,
input RSTREGARSTREG,
input RSTREGB,
input [13:0] ADDRARDADDR,
input [13:0] ADDRBWRADDR,
input [15:0] DIADI,
input [15:0] DIBDI,
input [1:0] DIPADIP,
input [1:0] DIPBDIP,
input [1:0] WEA,
input [3:0] WEBWE,
output [15:0] DOADO,
output [15:0] DOBDO,
output [1:0] DOPADOP,
output [1:0] DOPBDOP
);
parameter INITP_00 = 256'h0000000000000000000000000000000000000000000000000000000000000000;
parameter INITP_01 = 256'h0000000000000000000000000000000000000000000000000000000000000000;
parameter INITP_02 = 256'h0000000000000000000000000000000000000000000000000000000000000000;
parameter INITP_03 = 256'h0000000000000000000000000000000000000000000000000000000000000000;
parameter INITP_04 = 256'h0000000000000000000000000000000000000000000000000000000000000000;
parameter INITP_05 = 256'h0000000000000000000000000000000000000000000000000000000000000000;
parameter INITP_06 = 256'h0000000000000000000000000000000000000000000000000000000000000000;
parameter INITP_07 = 256'h0000000000000000000000000000000000000000000000000000000000000000;
parameter INIT_00 = 256'h0000000000000000000000000000000000000000000000000000000000000000;
parameter INIT_01 = 256'h0000000000000000000000000000000000000000000000000000000000000000;
parameter INIT_02 = 256'h0000000000000000000000000000000000000000000000000000000000000000;
parameter INIT_03 = 256'h0000000000000000000000000000000000000000000000000000000000000000;
parameter INIT_04 = 256'h0000000000000000000000000000000000000000000000000000000000000000;
parameter INIT_05 = 256'h0000000000000000000000000000000000000000000000000000000000000000;
parameter INIT_06 = 256'h0000000000000000000000000000000000000000000000000000000000000000;
parameter INIT_07 = 256'h0000000000000000000000000000000000000000000000000000000000000000;
parameter INIT_08 = 256'h0000000000000000000000000000000000000000000000000000000000000000;
parameter INIT_09 = 256'h0000000000000000000000000000000000000000000000000000000000000000;
parameter INIT_0A = 256'h0000000000000000000000000000000000000000000000000000000000000000;
parameter INIT_0B = 256'h0000000000000000000000000000000000000000000000000000000000000000;
parameter INIT_0C = 256'h0000000000000000000000000000000000000000000000000000000000000000;
parameter INIT_0D = 256'h0000000000000000000000000000000000000000000000000000000000000000;
parameter INIT_0E = 256'h0000000000000000000000000000000000000000000000000000000000000000;
parameter INIT_0F = 256'h0000000000000000000000000000000000000000000000000000000000000000;
parameter INIT_10 = 256'h0000000000000000000000000000000000000000000000000000000000000000;
parameter INIT_11 = 256'h0000000000000000000000000000000000000000000000000000000000000000;
parameter INIT_12 = 256'h0000000000000000000000000000000000000000000000000000000000000000;
parameter INIT_13 = 256'h0000000000000000000000000000000000000000000000000000000000000000;
parameter INIT_14 = 256'h0000000000000000000000000000000000000000000000000000000000000000;
parameter INIT_15 = 256'h0000000000000000000000000000000000000000000000000000000000000000;
parameter INIT_16 = 256'h0000000000000000000000000000000000000000000000000000000000000000;
parameter INIT_17 = 256'h0000000000000000000000000000000000000000000000000000000000000000;
parameter INIT_18 = 256'h0000000000000000000000000000000000000000000000000000000000000000;
parameter INIT_19 = 256'h0000000000000000000000000000000000000000000000000000000000000000;
parameter INIT_1A = 256'h0000000000000000000000000000000000000000000000000000000000000000;
parameter INIT_1B = 256'h0000000000000000000000000000000000000000000000000000000000000000;
parameter INIT_1C = 256'h0000000000000000000000000000000000000000000000000000000000000000;
parameter INIT_1D = 256'h0000000000000000000000000000000000000000000000000000000000000000;
parameter INIT_1E = 256'h0000000000000000000000000000000000000000000000000000000000000000;
parameter INIT_1F = 256'h0000000000000000000000000000000000000000000000000000000000000000;
parameter INIT_20 = 256'h0000000000000000000000000000000000000000000000000000000000000000;
parameter INIT_21 = 256'h0000000000000000000000000000000000000000000000000000000000000000;
parameter INIT_22 = 256'h0000000000000000000000000000000000000000000000000000000000000000;
parameter INIT_23 = 256'h0000000000000000000000000000000000000000000000000000000000000000;
parameter INIT_24 = 256'h0000000000000000000000000000000000000000000000000000000000000000;
parameter INIT_25 = 256'h0000000000000000000000000000000000000000000000000000000000000000;
parameter INIT_26 = 256'h0000000000000000000000000000000000000000000000000000000000000000;
parameter INIT_27 = 256'h0000000000000000000000000000000000000000000000000000000000000000;
parameter INIT_28 = 256'h0000000000000000000000000000000000000000000000000000000000000000;
parameter INIT_29 = 256'h0000000000000000000000000000000000000000000000000000000000000000;
parameter INIT_2A = 256'h0000000000000000000000000000000000000000000000000000000000000000;
parameter INIT_2B = 256'h0000000000000000000000000000000000000000000000000000000000000000;
parameter INIT_2C = 256'h0000000000000000000000000000000000000000000000000000000000000000;
parameter INIT_2D = 256'h0000000000000000000000000000000000000000000000000000000000000000;
parameter INIT_2E = 256'h0000000000000000000000000000000000000000000000000000000000000000;
parameter INIT_2F = 256'h0000000000000000000000000000000000000000000000000000000000000000;
parameter INIT_30 = 256'h0000000000000000000000000000000000000000000000000000000000000000;
parameter INIT_31 = 256'h0000000000000000000000000000000000000000000000000000000000000000;
parameter INIT_32 = 256'h0000000000000000000000000000000000000000000000000000000000000000;
parameter INIT_33 = 256'h0000000000000000000000000000000000000000000000000000000000000000;
parameter INIT_34 = 256'h0000000000000000000000000000000000000000000000000000000000000000;
parameter INIT_35 = 256'h0000000000000000000000000000000000000000000000000000000000000000;
parameter INIT_36 = 256'h0000000000000000000000000000000000000000000000000000000000000000;
parameter INIT_37 = 256'h0000000000000000000000000000000000000000000000000000000000000000;
parameter INIT_38 = 256'h0000000000000000000000000000000000000000000000000000000000000000;
parameter INIT_39 = 256'h0000000000000000000000000000000000000000000000000000000000000000;
parameter INIT_3A = 256'h0000000000000000000000000000000000000000000000000000000000000000;
parameter INIT_3B = 256'h0000000000000000000000000000000000000000000000000000000000000000;
parameter INIT_3C = 256'h0000000000000000000000000000000000000000000000000000000000000000;
parameter INIT_3D = 256'h0000000000000000000000000000000000000000000000000000000000000000;
parameter INIT_3E = 256'h0000000000000000000000000000000000000000000000000000000000000000;
parameter INIT_3F = 256'h0000000000000000000000000000000000000000000000000000000000000000;
parameter IS_CLKARDCLK_INVERTED = 1'b0;
parameter IS_CLKBWRCLK_INVERTED = 1'b0;
parameter IS_ENARDEN_INVERTED = 1'b0;
parameter IS_ENBWREN_INVERTED = 1'b0;
parameter IS_RSTRAMARSTRAM_INVERTED = 1'b0;
parameter IS_RSTRAMB_INVERTED = 1'b0;
parameter IS_RSTREGARSTREG_INVERTED = 1'b0;
parameter IS_RSTREGB_INVERTED = 1'b0;
parameter RAM_MODE = "TDP";
parameter integer DOA_REG = 0;
parameter integer DOB_REG = 0;
parameter integer READ_WIDTH_A = 0;
parameter integer READ_WIDTH_B = 0;
parameter integer WRITE_WIDTH_A = 0;
parameter integer WRITE_WIDTH_B = 0;
parameter WRITE_MODE_A = "WRITE_FIRST";
parameter WRITE_MODE_B = "WRITE_FIRST";
parameter SIM_DEVICE = "VIRTEX6";
endmodule
module RAMB36E1 (
input CLKARDCLK,
input CLKBWRCLK,
input ENARDEN,
input ENBWREN,
input REGCEAREGCE,
input REGCEB,
input RSTRAMARSTRAM,
input RSTRAMB,
input RSTREGARSTREG,
input RSTREGB,
input [15:0] ADDRARDADDR,
input [15:0] ADDRBWRADDR,
input [31:0] DIADI,
input [31:0] DIBDI,
input [3:0] DIPADIP,
input [3:0] DIPBDIP,
input [3:0] WEA,
input [7:0] WEBWE,
output [31:0] DOADO,
output [31:0] DOBDO,
output [3:0] DOPADOP,
output [3:0] DOPBDOP
);
parameter INITP_00 = 256'h0000000000000000000000000000000000000000000000000000000000000000;
parameter INITP_01 = 256'h0000000000000000000000000000000000000000000000000000000000000000;
parameter INITP_02 = 256'h0000000000000000000000000000000000000000000000000000000000000000;
parameter INITP_03 = 256'h0000000000000000000000000000000000000000000000000000000000000000;
parameter INITP_04 = 256'h0000000000000000000000000000000000000000000000000000000000000000;
parameter INITP_05 = 256'h0000000000000000000000000000000000000000000000000000000000000000;
parameter INITP_06 = 256'h0000000000000000000000000000000000000000000000000000000000000000;
parameter INITP_07 = 256'h0000000000000000000000000000000000000000000000000000000000000000;
parameter INITP_08 = 256'h0000000000000000000000000000000000000000000000000000000000000000;
parameter INITP_09 = 256'h0000000000000000000000000000000000000000000000000000000000000000;
parameter INITP_0A = 256'h0000000000000000000000000000000000000000000000000000000000000000;
parameter INITP_0B = 256'h0000000000000000000000000000000000000000000000000000000000000000;
parameter INITP_0C = 256'h0000000000000000000000000000000000000000000000000000000000000000;
parameter INITP_0D = 256'h0000000000000000000000000000000000000000000000000000000000000000;
parameter INITP_0E = 256'h0000000000000000000000000000000000000000000000000000000000000000;
parameter INITP_0F = 256'h0000000000000000000000000000000000000000000000000000000000000000;
parameter INIT_00 = 256'h0000000000000000000000000000000000000000000000000000000000000000;
parameter INIT_01 = 256'h0000000000000000000000000000000000000000000000000000000000000000;
parameter INIT_02 = 256'h0000000000000000000000000000000000000000000000000000000000000000;
parameter INIT_03 = 256'h0000000000000000000000000000000000000000000000000000000000000000;
parameter INIT_04 = 256'h0000000000000000000000000000000000000000000000000000000000000000;
parameter INIT_05 = 256'h0000000000000000000000000000000000000000000000000000000000000000;
parameter INIT_06 = 256'h0000000000000000000000000000000000000000000000000000000000000000;
parameter INIT_07 = 256'h0000000000000000000000000000000000000000000000000000000000000000;
parameter INIT_08 = 256'h0000000000000000000000000000000000000000000000000000000000000000;
parameter INIT_09 = 256'h0000000000000000000000000000000000000000000000000000000000000000;
parameter INIT_0A = 256'h0000000000000000000000000000000000000000000000000000000000000000;
parameter INIT_0B = 256'h0000000000000000000000000000000000000000000000000000000000000000;
parameter INIT_0C = 256'h0000000000000000000000000000000000000000000000000000000000000000;
parameter INIT_0D = 256'h0000000000000000000000000000000000000000000000000000000000000000;
parameter INIT_0E = 256'h0000000000000000000000000000000000000000000000000000000000000000;
parameter INIT_0F = 256'h0000000000000000000000000000000000000000000000000000000000000000;
parameter INIT_10 = 256'h0000000000000000000000000000000000000000000000000000000000000000;
parameter INIT_11 = 256'h0000000000000000000000000000000000000000000000000000000000000000;
parameter INIT_12 = 256'h0000000000000000000000000000000000000000000000000000000000000000;
parameter INIT_13 = 256'h0000000000000000000000000000000000000000000000000000000000000000;
parameter INIT_14 = 256'h0000000000000000000000000000000000000000000000000000000000000000;
parameter INIT_15 = 256'h0000000000000000000000000000000000000000000000000000000000000000;
parameter INIT_16 = 256'h0000000000000000000000000000000000000000000000000000000000000000;
parameter INIT_17 = 256'h0000000000000000000000000000000000000000000000000000000000000000;
parameter INIT_18 = 256'h0000000000000000000000000000000000000000000000000000000000000000;
parameter INIT_19 = 256'h0000000000000000000000000000000000000000000000000000000000000000;
parameter INIT_1A = 256'h0000000000000000000000000000000000000000000000000000000000000000;
parameter INIT_1B = 256'h0000000000000000000000000000000000000000000000000000000000000000;
parameter INIT_1C = 256'h0000000000000000000000000000000000000000000000000000000000000000;
parameter INIT_1D = 256'h0000000000000000000000000000000000000000000000000000000000000000;
parameter INIT_1E = 256'h0000000000000000000000000000000000000000000000000000000000000000;
parameter INIT_1F = 256'h0000000000000000000000000000000000000000000000000000000000000000;
parameter INIT_20 = 256'h0000000000000000000000000000000000000000000000000000000000000000;
parameter INIT_21 = 256'h0000000000000000000000000000000000000000000000000000000000000000;
parameter INIT_22 = 256'h0000000000000000000000000000000000000000000000000000000000000000;
parameter INIT_23 = 256'h0000000000000000000000000000000000000000000000000000000000000000;
parameter INIT_24 = 256'h0000000000000000000000000000000000000000000000000000000000000000;
parameter INIT_25 = 256'h0000000000000000000000000000000000000000000000000000000000000000;
parameter INIT_26 = 256'h0000000000000000000000000000000000000000000000000000000000000000;
parameter INIT_27 = 256'h0000000000000000000000000000000000000000000000000000000000000000;
parameter INIT_28 = 256'h0000000000000000000000000000000000000000000000000000000000000000;
parameter INIT_29 = 256'h0000000000000000000000000000000000000000000000000000000000000000;
parameter INIT_2A = 256'h0000000000000000000000000000000000000000000000000000000000000000;
parameter INIT_2B = 256'h0000000000000000000000000000000000000000000000000000000000000000;
parameter INIT_2C = 256'h0000000000000000000000000000000000000000000000000000000000000000;
parameter INIT_2D = 256'h0000000000000000000000000000000000000000000000000000000000000000;
parameter INIT_2E = 256'h0000000000000000000000000000000000000000000000000000000000000000;
parameter INIT_2F = 256'h0000000000000000000000000000000000000000000000000000000000000000;
parameter INIT_30 = 256'h0000000000000000000000000000000000000000000000000000000000000000;
parameter INIT_31 = 256'h0000000000000000000000000000000000000000000000000000000000000000;
parameter INIT_32 = 256'h0000000000000000000000000000000000000000000000000000000000000000;
parameter INIT_33 = 256'h0000000000000000000000000000000000000000000000000000000000000000;
parameter INIT_34 = 256'h0000000000000000000000000000000000000000000000000000000000000000;
parameter INIT_35 = 256'h0000000000000000000000000000000000000000000000000000000000000000;
parameter INIT_36 = 256'h0000000000000000000000000000000000000000000000000000000000000000;
parameter INIT_37 = 256'h0000000000000000000000000000000000000000000000000000000000000000;
parameter INIT_38 = 256'h0000000000000000000000000000000000000000000000000000000000000000;
parameter INIT_39 = 256'h0000000000000000000000000000000000000000000000000000000000000000;
parameter INIT_3A = 256'h0000000000000000000000000000000000000000000000000000000000000000;
parameter INIT_3B = 256'h0000000000000000000000000000000000000000000000000000000000000000;
parameter INIT_3C = 256'h0000000000000000000000000000000000000000000000000000000000000000;
parameter INIT_3D = 256'h0000000000000000000000000000000000000000000000000000000000000000;
parameter INIT_3E = 256'h0000000000000000000000000000000000000000000000000000000000000000;
parameter INIT_3F = 256'h0000000000000000000000000000000000000000000000000000000000000000;
parameter INIT_40 = 256'h0000000000000000000000000000000000000000000000000000000000000000;
parameter INIT_41 = 256'h0000000000000000000000000000000000000000000000000000000000000000;
parameter INIT_42 = 256'h0000000000000000000000000000000000000000000000000000000000000000;
parameter INIT_43 = 256'h0000000000000000000000000000000000000000000000000000000000000000;
parameter INIT_44 = 256'h0000000000000000000000000000000000000000000000000000000000000000;
parameter INIT_45 = 256'h0000000000000000000000000000000000000000000000000000000000000000;
parameter INIT_46 = 256'h0000000000000000000000000000000000000000000000000000000000000000;
parameter INIT_47 = 256'h0000000000000000000000000000000000000000000000000000000000000000;
parameter INIT_48 = 256'h0000000000000000000000000000000000000000000000000000000000000000;
parameter INIT_49 = 256'h0000000000000000000000000000000000000000000000000000000000000000;
parameter INIT_4A = 256'h0000000000000000000000000000000000000000000000000000000000000000;
parameter INIT_4B = 256'h0000000000000000000000000000000000000000000000000000000000000000;
parameter INIT_4C = 256'h0000000000000000000000000000000000000000000000000000000000000000;
parameter INIT_4D = 256'h0000000000000000000000000000000000000000000000000000000000000000;
parameter INIT_4E = 256'h0000000000000000000000000000000000000000000000000000000000000000;
parameter INIT_4F = 256'h0000000000000000000000000000000000000000000000000000000000000000;
parameter INIT_50 = 256'h0000000000000000000000000000000000000000000000000000000000000000;
parameter INIT_51 = 256'h0000000000000000000000000000000000000000000000000000000000000000;
parameter INIT_52 = 256'h0000000000000000000000000000000000000000000000000000000000000000;
parameter INIT_53 = 256'h0000000000000000000000000000000000000000000000000000000000000000;
parameter INIT_54 = 256'h0000000000000000000000000000000000000000000000000000000000000000;
parameter INIT_55 = 256'h0000000000000000000000000000000000000000000000000000000000000000;
parameter INIT_56 = 256'h0000000000000000000000000000000000000000000000000000000000000000;
parameter INIT_57 = 256'h0000000000000000000000000000000000000000000000000000000000000000;
parameter INIT_58 = 256'h0000000000000000000000000000000000000000000000000000000000000000;
parameter INIT_59 = 256'h0000000000000000000000000000000000000000000000000000000000000000;
parameter INIT_5A = 256'h0000000000000000000000000000000000000000000000000000000000000000;
parameter INIT_5B = 256'h0000000000000000000000000000000000000000000000000000000000000000;
parameter INIT_5C = 256'h0000000000000000000000000000000000000000000000000000000000000000;
parameter INIT_5D = 256'h0000000000000000000000000000000000000000000000000000000000000000;
parameter INIT_5E = 256'h0000000000000000000000000000000000000000000000000000000000000000;
parameter INIT_5F = 256'h0000000000000000000000000000000000000000000000000000000000000000;
parameter INIT_60 = 256'h0000000000000000000000000000000000000000000000000000000000000000;
parameter INIT_61 = 256'h0000000000000000000000000000000000000000000000000000000000000000;
parameter INIT_62 = 256'h0000000000000000000000000000000000000000000000000000000000000000;
parameter INIT_63 = 256'h0000000000000000000000000000000000000000000000000000000000000000;
parameter INIT_64 = 256'h0000000000000000000000000000000000000000000000000000000000000000;
parameter INIT_65 = 256'h0000000000000000000000000000000000000000000000000000000000000000;
parameter INIT_66 = 256'h0000000000000000000000000000000000000000000000000000000000000000;
parameter INIT_67 = 256'h0000000000000000000000000000000000000000000000000000000000000000;
parameter INIT_68 = 256'h0000000000000000000000000000000000000000000000000000000000000000;
parameter INIT_69 = 256'h0000000000000000000000000000000000000000000000000000000000000000;
parameter INIT_6A = 256'h0000000000000000000000000000000000000000000000000000000000000000;
parameter INIT_6B = 256'h0000000000000000000000000000000000000000000000000000000000000000;
parameter INIT_6C = 256'h0000000000000000000000000000000000000000000000000000000000000000;
parameter INIT_6D = 256'h0000000000000000000000000000000000000000000000000000000000000000;
parameter INIT_6E = 256'h0000000000000000000000000000000000000000000000000000000000000000;
parameter INIT_6F = 256'h0000000000000000000000000000000000000000000000000000000000000000;
parameter INIT_70 = 256'h0000000000000000000000000000000000000000000000000000000000000000;
parameter INIT_71 = 256'h0000000000000000000000000000000000000000000000000000000000000000;
parameter INIT_72 = 256'h0000000000000000000000000000000000000000000000000000000000000000;
parameter INIT_73 = 256'h0000000000000000000000000000000000000000000000000000000000000000;
parameter INIT_74 = 256'h0000000000000000000000000000000000000000000000000000000000000000;
parameter INIT_75 = 256'h0000000000000000000000000000000000000000000000000000000000000000;
parameter INIT_76 = 256'h0000000000000000000000000000000000000000000000000000000000000000;
parameter INIT_77 = 256'h0000000000000000000000000000000000000000000000000000000000000000;
parameter INIT_78 = 256'h0000000000000000000000000000000000000000000000000000000000000000;
parameter INIT_79 = 256'h0000000000000000000000000000000000000000000000000000000000000000;
parameter INIT_7A = 256'h0000000000000000000000000000000000000000000000000000000000000000;
parameter INIT_7B = 256'h0000000000000000000000000000000000000000000000000000000000000000;
parameter INIT_7C = 256'h0000000000000000000000000000000000000000000000000000000000000000;
parameter INIT_7D = 256'h0000000000000000000000000000000000000000000000000000000000000000;
parameter INIT_7E = 256'h0000000000000000000000000000000000000000000000000000000000000000;
parameter INIT_7F = 256'h0000000000000000000000000000000000000000000000000000000000000000;
parameter IS_CLKARDCLK_INVERTED = 1'b0;
parameter IS_CLKBWRCLK_INVERTED = 1'b0;
parameter IS_ENARDEN_INVERTED = 1'b0;
parameter IS_ENBWREN_INVERTED = 1'b0;
parameter IS_RSTRAMARSTRAM_INVERTED = 1'b0;
parameter IS_RSTRAMB_INVERTED = 1'b0;
parameter IS_RSTREGARSTREG_INVERTED = 1'b0;
parameter IS_RSTREGB_INVERTED = 1'b0;
parameter RAM_MODE = "TDP";
parameter integer DOA_REG = 0;
parameter integer DOB_REG = 0;
parameter integer READ_WIDTH_A = 0;
parameter integer READ_WIDTH_B = 0;
parameter integer WRITE_WIDTH_A = 0;
parameter integer WRITE_WIDTH_B = 0;
parameter WRITE_MODE_A = "WRITE_FIRST";
parameter WRITE_MODE_B = "WRITE_FIRST";
parameter SIM_DEVICE = "VIRTEX6";
endmodule

2
techlibs/xilinx/synth_xilinx.cc
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@ -69,6 +69,7 @@ struct SynthXilinxPass : public Pass {
log("\n");
log(" begin:\n");
log(" read_verilog -lib +/xilinx/cells_sim.v\n");
log(" read_verilog -lib +/xilinx/brams_bb.v\n");
log(" hierarchy -check -top <top>\n");
log("\n");
log(" flatten: (only if -flatten)\n");
@ -158,6 +159,7 @@ struct SynthXilinxPass : public Pass {
if (check_label(active, run_from, run_to, "begin"))
{
Pass::call(design, "read_verilog -lib +/xilinx/cells_sim.v");
Pass::call(design, "read_verilog -lib +/xilinx/brams_bb.v");
Pass::call(design, stringf("hierarchy -check %s", top_opt.c_str()));
}