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Merge remote-tracking branch 'origin/xaig_dff' into eddie/abc9_refactor

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Eddie Hung 2019-12-30 16:20:58 -08:00
commit 7649ec72c9
18 changed files with 1429 additions and 769 deletions
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126
techlibs/xilinx/cells_sim.v
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@ -325,6 +325,7 @@ endmodule
// Max delay from: https://github.com/SymbiFlow/prjxray-db/blob/34ea6eb08a63d21ec16264ad37a0a7b142ff6031/artix7/timings/CLBLL_L.sdf#L238-L250
(* abc9_box_id=1100, lib_whitebox, abc9_flop *)
module FDRE (
(* abc9_arrival=303 *)
output reg Q,
@ -348,27 +349,17 @@ module FDRE (
endcase endgenerate
endmodule
module FDSE (
(* abc9_box_id=1101, lib_whitebox, abc9_flop *)
module FDRE_1 (
(* abc9_arrival=303 *)
output reg Q,
(* clkbuf_sink *)
(* invertible_pin = "IS_C_INVERTED" *)
input C,
input CE,
(* invertible_pin = "IS_D_INVERTED" *)
input D,
(* invertible_pin = "IS_S_INVERTED" *)
input S
input CE, D, R
);
parameter [0:0] INIT = 1'b1;
parameter [0:0] IS_C_INVERTED = 1'b0;
parameter [0:0] IS_D_INVERTED = 1'b0;
parameter [0:0] IS_S_INVERTED = 1'b0;
parameter [0:0] INIT = 1'b0;
initial Q <= INIT;
generate case (|IS_C_INVERTED)
1'b0: always @(posedge C) if (S == !IS_S_INVERTED) Q <= 1'b1; else if (CE) Q <= D ^ IS_D_INVERTED;
1'b1: always @(negedge C) if (S == !IS_S_INVERTED) Q <= 1'b1; else if (CE) Q <= D ^ IS_D_INVERTED;
endcase endgenerate
always @(negedge C) if (R) Q <= 1'b0; else if (CE) Q <= D;
endmodule
module FDRSE (
@ -406,6 +397,7 @@ module FDRSE (
Q <= d;
endmodule
(* abc9_box_id=1102, lib_whitebox, abc9_flop *)
module FDCE (
(* abc9_arrival=303 *)
output reg Q,
@ -431,29 +423,17 @@ module FDCE (
endcase endgenerate
endmodule
module FDPE (
(* abc9_box_id=1103, lib_whitebox, abc9_flop *)
module FDCE_1 (
(* abc9_arrival=303 *)
output reg Q,
(* clkbuf_sink *)
(* invertible_pin = "IS_C_INVERTED" *)
input C,
input CE,
(* invertible_pin = "IS_D_INVERTED" *)
input D,
(* invertible_pin = "IS_PRE_INVERTED" *)
input PRE
input CE, D, CLR
);
parameter [0:0] INIT = 1'b1;
parameter [0:0] IS_C_INVERTED = 1'b0;
parameter [0:0] IS_D_INVERTED = 1'b0;
parameter [0:0] IS_PRE_INVERTED = 1'b0;
parameter [0:0] INIT = 1'b0;
initial Q <= INIT;
generate case ({|IS_C_INVERTED, |IS_PRE_INVERTED})
2'b00: always @(posedge C, posedge PRE) if ( PRE) Q <= 1'b1; else if (CE) Q <= D ^ IS_D_INVERTED;
2'b01: always @(posedge C, negedge PRE) if (!PRE) Q <= 1'b1; else if (CE) Q <= D ^ IS_D_INVERTED;
2'b10: always @(negedge C, posedge PRE) if ( PRE) Q <= 1'b1; else if (CE) Q <= D ^ IS_D_INVERTED;
2'b11: always @(negedge C, negedge PRE) if (!PRE) Q <= 1'b1; else if (CE) Q <= D ^ IS_D_INVERTED;
endcase endgenerate
always @(negedge C, posedge CLR) if (CLR) Q <= 1'b0; else if (CE) Q <= D;
endmodule
module FDCPE (
@ -501,42 +481,33 @@ module FDCPE (
assign Q = qs ? qp : qc;
endmodule
module FDRE_1 (
(* abc9_box_id=1104, lib_whitebox, abc9_flop *)
module FDPE (
(* abc9_arrival=303 *)
output reg Q,
(* clkbuf_sink *)
(* invertible_pin = "IS_C_INVERTED" *)
input C,
input CE, D, R
);
parameter [0:0] INIT = 1'b0;
initial Q <= INIT;
always @(negedge C) if (R) Q <= 1'b0; else if(CE) Q <= D;
endmodule
module FDSE_1 (
(* abc9_arrival=303 *)
output reg Q,
(* clkbuf_sink *)
input C,
input CE, D, S
input CE,
(* invertible_pin = "IS_D_INVERTED" *)
input D,
(* invertible_pin = "IS_PRE_INVERTED" *)
input PRE
);
parameter [0:0] INIT = 1'b1;
parameter [0:0] IS_C_INVERTED = 1'b0;
parameter [0:0] IS_D_INVERTED = 1'b0;
parameter [0:0] IS_PRE_INVERTED = 1'b0;
initial Q <= INIT;
always @(negedge C) if (S) Q <= 1'b1; else if(CE) Q <= D;
endmodule
module FDCE_1 (
(* abc9_arrival=303 *)
output reg Q,
(* clkbuf_sink *)
input C,
input CE, D, CLR
);
parameter [0:0] INIT = 1'b0;
initial Q <= INIT;
always @(negedge C, posedge CLR) if (CLR) Q <= 1'b0; else if (CE) Q <= D;
generate case ({|IS_C_INVERTED, |IS_PRE_INVERTED})
2'b00: always @(posedge C, posedge PRE) if ( PRE) Q <= 1'b1; else if (CE) Q <= D ^ IS_D_INVERTED;
2'b01: always @(posedge C, negedge PRE) if (!PRE) Q <= 1'b1; else if (CE) Q <= D ^ IS_D_INVERTED;
2'b10: always @(negedge C, posedge PRE) if ( PRE) Q <= 1'b1; else if (CE) Q <= D ^ IS_D_INVERTED;
2'b11: always @(negedge C, negedge PRE) if (!PRE) Q <= 1'b1; else if (CE) Q <= D ^ IS_D_INVERTED;
endcase endgenerate
endmodule
(* abc9_box_id=1105, lib_whitebox, abc9_flop *)
module FDPE_1 (
(* abc9_arrival=303 *)
output reg Q,
@ -549,6 +520,43 @@ module FDPE_1 (
always @(negedge C, posedge PRE) if (PRE) Q <= 1'b1; else if (CE) Q <= D;
endmodule
(* abc9_box_id=1106, lib_whitebox, abc9_flop *)
module FDSE (
(* abc9_arrival=303 *)
output reg Q,
(* clkbuf_sink *)
(* invertible_pin = "IS_C_INVERTED" *)
input C,
input CE,
(* invertible_pin = "IS_D_INVERTED" *)
input D,
(* invertible_pin = "IS_S_INVERTED" *)
input S
);
parameter [0:0] INIT = 1'b1;
parameter [0:0] IS_C_INVERTED = 1'b0;
parameter [0:0] IS_D_INVERTED = 1'b0;
parameter [0:0] IS_S_INVERTED = 1'b0;
initial Q <= INIT;
generate case (|IS_C_INVERTED)
1'b0: always @(posedge C) if (S == !IS_S_INVERTED) Q <= 1'b1; else if (CE) Q <= D ^ IS_D_INVERTED;
1'b1: always @(negedge C) if (S == !IS_S_INVERTED) Q <= 1'b1; else if (CE) Q <= D ^ IS_D_INVERTED;
endcase endgenerate
endmodule
(* abc9_box_id=1107, lib_whitebox, abc9_flop *)
module FDSE_1 (
(* abc9_arrival=303 *)
output reg Q,
(* clkbuf_sink *)
input C,
input CE, D, S
);
parameter [0:0] INIT = 1'b1;
initial Q <= INIT;
always @(negedge C) if (S) Q <= 1'b1; else if (CE) Q <= D;
endmodule
module LDCE (
output reg Q,
(* invertible_pin = "IS_CLR_INVERTED" *)