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xilinx: Add FDRSE_1, FDCPE_1.

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Marcelina Kościelnicka 2021-01-25 13:01:24 +01:00
parent a77fa6709b
commit cd6f0732f3
1 changed files with 80 additions and 0 deletions
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80
techlibs/xilinx/cells_sim.v
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@ -633,6 +633,41 @@ module FDRSE (
Q <= d;
endmodule
module FDRSE_1 (
output reg Q,
(* clkbuf_sink *)
(* invertible_pin = "IS_C_INVERTED" *)
input C,
(* invertible_pin = "IS_CE_INVERTED" *)
input CE,
(* invertible_pin = "IS_D_INVERTED" *)
input D,
(* invertible_pin = "IS_R_INVERTED" *)
input R,
(* invertible_pin = "IS_S_INVERTED" *)
input S
);
parameter [0:0] INIT = 1'b0;
parameter [0:0] IS_C_INVERTED = 1'b0;
parameter [0:0] IS_CE_INVERTED = 1'b0;
parameter [0:0] IS_D_INVERTED = 1'b0;
parameter [0:0] IS_R_INVERTED = 1'b0;
parameter [0:0] IS_S_INVERTED = 1'b0;
initial Q <= INIT;
wire c = C ^ IS_C_INVERTED;
wire ce = CE ^ IS_CE_INVERTED;
wire d = D ^ IS_D_INVERTED;
wire r = R ^ IS_R_INVERTED;
wire s = S ^ IS_S_INVERTED;
always @(negedge c)
if (r)
Q <= 0;
else if (s)
Q <= 1;
else if (ce)
Q <= d;
endmodule
(* abc9_box, lib_whitebox *)
module FDCE (
output reg Q,
@ -837,6 +872,51 @@ module FDCPE (
assign Q = qs ? qp : qc;
endmodule
module FDCPE_1 (
output wire Q,
(* clkbuf_sink *)
(* invertible_pin = "IS_C_INVERTED" *)
input C,
input CE,
(* invertible_pin = "IS_CLR_INVERTED" *)
input CLR,
input D,
(* invertible_pin = "IS_PRE_INVERTED" *)
input PRE
);
parameter [0:0] INIT = 1'b0;
parameter [0:0] IS_C_INVERTED = 1'b0;
parameter [0:0] IS_CLR_INVERTED = 1'b0;
parameter [0:0] IS_PRE_INVERTED = 1'b0;
wire c = C ^ IS_C_INVERTED;
wire clr = CLR ^ IS_CLR_INVERTED;
wire pre = PRE ^ IS_PRE_INVERTED;
// Hacky model to avoid simulation-synthesis mismatches.
reg qc, qp, qs;
initial qc = INIT;
initial qp = INIT;
initial qs = 0;
always @(negedge c, posedge clr) begin
if (clr)
qc <= 0;
else if (CE)
qc <= D;
end
always @(negedge c, posedge pre) begin
if (pre)
qp <= 1;
else if (CE)
qp <= D;
end
always @* begin
if (clr)
qs <= 0;
else if (pre)
qs <= 1;
end
assign Q = qs ? qp : qc;
endmodule
module LDCE (
output reg Q,
(* invertible_pin = "IS_CLR_INVERTED" *)