/* * yosys -- Yosys Open SYnthesis Suite * * Copyright (C) 2012 Clifford Wolf * 2019 Eddie Hung * * Permission to use, copy, modify, and/or distribute this software for any * purpose with or without fee is hereby granted, provided that the above * copyright notice and this permission notice appear in all copies. * * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. * */ // ============================================================================ // Max delays from https://github.com/SymbiFlow/prjxray-db/blob/23c8b0851f979f0799318eaca90174413a46b257/artix7/timings/slicel.sdf#L237-L251 module FDRE (output reg Q, input C, CE, D, R); parameter [0:0] INIT = 1'b0; parameter [0:0] IS_C_INVERTED = 1'b0; parameter [0:0] IS_D_INVERTED = 1'b0; parameter [0:0] IS_R_INVERTED = 1'b0; wire \$nextQ ; \$__ABC_FDRE #( .INIT(INIT), .IS_C_INVERTED(IS_C_INVERTED), .IS_D_INVERTED(IS_D_INVERTED), .IS_R_INVERTED(IS_R_INVERTED), .CLK_POLARITY(!IS_C_INVERTED), .EN_POLARITY(1'b1) ) _TECHMAP_REPLACE_ ( .D(D), .Q(\$nextQ ), .\$pastQ (Q), .C(C), .CE(CE), .R(R) ); \$__ABC_FF_ abc_dff (.D(\$nextQ ), .Q(Q)); endmodule module FDRE_1 (output reg Q, input C, CE, D, R); parameter [0:0] INIT = 1'b0; wire \$nextQ ; \$__ABC_FDRE_1 #( .INIT(|0), .CLK_POLARITY(1'b0), .EN_POLARITY(1'b1) ) _TECHMAP_REPLACE_ ( .D(D), .Q(\$nextQ ), .\$pastQ (Q), .C(C), .CE(CE), .R(R) ); \$__ABC_FF_ abc_dff (.D(\$nextQ ), .Q(Q)); endmodule module FDCE (output reg Q, input C, CE, D, CLR); parameter [0:0] INIT = 1'b0; parameter [0:0] IS_C_INVERTED = 1'b0; parameter [0:0] IS_D_INVERTED = 1'b0; parameter [0:0] IS_CLR_INVERTED = 1'b0; wire \$nextQ , \$currQ ; \$__ABC_FDCE #( .INIT(INIT), .IS_C_INVERTED(IS_C_INVERTED), .IS_D_INVERTED(IS_D_INVERTED), .IS_CLR_INVERTED(IS_CLR_INVERTED), .CLK_POLARITY(!IS_C_INVERTED), .EN_POLARITY(1'b1) ) _TECHMAP_REPLACE_ ( .D(D), .Q(\$nextQ ), .\$pastQ (Q), .C(C), .CE(CE), .CLR(CLR) ); \$__ABC_FF_ abc_dff (.D(\$nextQ ), .Q(\$currQ )); \$__ABC_ASYNC abc_async (.A(\$currQ ), .S(CLR), .Y(Q)); endmodule module FDCE_1 (output reg Q, input C, CE, D, CLR); parameter [0:0] INIT = 1'b0; wire \$nextQ , \$currQ ; \$__ABC_FDCE_1 #( .INIT(INIT), .CLK_POLARITY(1'b0), .EN_POLARITY(1'b1) ) _TECHMAP_REPLACE_ ( .D(D), .Q(\$nextQ ), .\$pastQ (Q), .C(C), .CE(CE), .CLR(CLR) ); \$__ABC_FF_ abc_dff (.D(\$nextQ ), .Q(\$currQ )); \$__ABC_ASYNC abc_async (.A(\$currQ ), .S(CLR), .Y(Q)); endmodule module FDPE (output reg Q, input C, CE, D, PRE); parameter [0:0] INIT = 1'b0; parameter [0:0] IS_C_INVERTED = 1'b0; parameter [0:0] IS_D_INVERTED = 1'b0; parameter [0:0] IS_PRE_INVERTED = 1'b0; wire \$nextQ , \$currQ ; \$__ABC_FDPE #( .INIT(INIT), .IS_C_INVERTED(IS_C_INVERTED), .IS_D_INVERTED(IS_D_INVERTED), .IS_PRE_INVERTED(IS_PRE_INVERTED), .CLK_POLARITY(!IS_C_INVERTED), .EN_POLARITY(1'b1) ) _TECHMAP_REPLACE_ ( .D(D), .Q(\$nextQ ), .\$pastQ (Q), .C(C), .CE(CE), .PRE(PRE) ); \$__ABC_FF_ abc_dff (.D(\$nextQ ), .Q(\$currQ )); \$__ABC_ASYNC abc_async (.A(\$currQ ), .S(PRE), .Y(Q)); endmodule module FDPE_1 (output reg Q, input C, CE, D, PRE); parameter [0:0] INIT = 1'b0; wire \$nextQ , \$currQ ; \$__ABC_FDPE_1 #( .INIT(INIT), .CLK_POLARITY(1'b0), .EN_POLARITY(1'b1) ) _TECHMAP_REPLACE_ ( .D(D), .Q(\$nextQ ), .\$pastQ (Q), .C(C), .CE(CE), .PRE(PRE) ); \$__ABC_FF_ abc_dff (.D(\$nextQ ), .Q(\$currQ )); \$__ABC_ASYNC abc_async (.A(\$currQ ), .S(PRE), .Y(Q)); endmodule