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Attach abc_scc_break, abc_carry_{in,out} attr to ports not modules

This commit is contained in:
Eddie Hung 2019-08-16 15:40:53 -07:00
parent 958be89c47
commit 562c9e3624
1 changed files with 20 additions and 8 deletions
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28
techlibs/xilinx/cells_sim.v
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@ -181,8 +181,14 @@ module XORCY(output O, input CI, LI);
assign O = CI ^ LI;
endmodule
(* abc_box_id = 4, abc_carry="CI,CO", lib_whitebox *)
module CARRY4(output [3:0] CO, O, input CI, CYINIT, input [3:0] DI, S);
(* abc_box_id = 4, lib_whitebox *)
module CARRY4(
(* abc_carry_out *) output [3:0] CO,
output [3:0] O,
(* abc_carry_in *) input CI,
input CYINIT,
input [3:0] DI, S
);
assign O = S ^ {CO[2:0], CI | CYINIT};
assign CO[0] = S[0] ? CI | CYINIT : DI[0];
assign CO[1] = S[1] ? CO[0] : DI[1];
@ -289,10 +295,12 @@ module FDPE_1 (output reg Q, input C, CE, D, PRE);
always @(negedge C, posedge PRE) if (PRE) Q <= 1'b1; else if (CE) Q <= D;
endmodule
(* abc_box_id = 5, abc_scc_break="D,WE" *)
(* abc_box_id = 5 *)
module RAM32X1D (
output DPO, SPO,
input D, WCLK, WE,
(* abc_scc_break *) input D,
input WCLK,
(* abc_scc_break *) input WE,
input A0, A1, A2, A3, A4,
input DPRA0, DPRA1, DPRA2, DPRA3, DPRA4
);
@ -307,10 +315,12 @@ module RAM32X1D (
always @(posedge clk) if (WE) mem[a] <= D;
endmodule
(* abc_box_id = 6, abc_scc_break="D,WE" *)
(* abc_box_id = 6 *)
module RAM64X1D (
output DPO, SPO,
input D, WCLK, WE,
(* abc_scc_break *) input D,
input WCLK,
(* abc_scc_break *) input WE,
input A0, A1, A2, A3, A4, A5,
input DPRA0, DPRA1, DPRA2, DPRA3, DPRA4, DPRA5
);
@ -325,10 +335,12 @@ module RAM64X1D (
always @(posedge clk) if (WE) mem[a] <= D;
endmodule
(* abc_box_id = 7, abc_scc_break="D,WE" *)
(* abc_box_id = 7 *)
module RAM128X1D (
output DPO, SPO,
input D, WCLK, WE,
(* abc_scc_break *) input D,
input WCLK,
(* abc_scc_break *) input WE,
input [6:0] A, DPRA
);
parameter INIT = 128'h0;