diff options
Diffstat (limited to 'techlibs/gowin')
| -rw-r--r-- | techlibs/gowin/cells_map.v | 225 | ||||
| -rw-r--r-- | techlibs/gowin/synth_gowin.cc | 15 |
2 files changed, 199 insertions, 41 deletions
diff --git a/techlibs/gowin/cells_map.v b/techlibs/gowin/cells_map.v index 9845e56a7..9c8b5aec1 100644 --- a/techlibs/gowin/cells_map.v +++ b/techlibs/gowin/cells_map.v @@ -1,82 +1,231 @@ +`default_nettype none //All DFF* have INIT, but the hardware is always initialised to the reset //value regardless. The parameter is ignored. // DFFN D Flip-Flop with Negative-Edge Clock -module \$_DFF_N_ (input D, C, output Q); DFFN _TECHMAP_REPLACE_ (.D(D), .Q(Q), .CLK(C)); endmodule +module \$_DFF_N_ #(parameter _TECHMAP_WIREINIT_Q_ = 1'bx) (input D, C, output Q); + generate + if (_TECHMAP_WIREINIT_Q_ === 1'b1) + DFFNS _TECHMAP_REPLACE_ (.D(D), .Q(Q), .CLK(C), .SET(1'b0)); + else + DFFN _TECHMAP_REPLACE_ (.D(D), .Q(Q), .CLK(C)); + endgenerate + wire _TECHMAP_REMOVEINIT_Q_ = 1; +endmodule + // DFF D Flip-Flop -module \$_DFF_P_ (input D, C, output Q); DFF _TECHMAP_REPLACE_ (.D(D), .Q(Q), .CLK(C)); endmodule +module \$_DFF_P_ #(parameter _TECHMAP_WIREINIT_Q_ = 1'bx) (input D, C, output Q); + generate + if (_TECHMAP_WIREINIT_Q_ === 1'b1) + DFFS _TECHMAP_REPLACE_ (.D(D), .Q(Q), .CLK(C), .SET(1'b0)); + else + DFF _TECHMAP_REPLACE_ (.D(D), .Q(Q), .CLK(C)); + endgenerate + wire _TECHMAP_REMOVEINIT_Q_ = 1; +endmodule // DFFE D Flip-Flop with Clock Enable -module \$_DFFE_PP_ (input D, C, E, output Q); DFFE _TECHMAP_REPLACE_ (.D(D), .Q(Q), .CLK(C), .CE(E)); endmodule -module \$_DFFE_PN_ (input D, C, E, output Q); DFFE _TECHMAP_REPLACE_ (.D(D), .Q(Q), .CLK(C), .CE(!E)); endmodule +module \$_DFFE_PP_ #(parameter _TECHMAP_WIREINIT_Q_ = 1'bx) (input D, C, E, output Q); + generate + if (_TECHMAP_WIREINIT_Q_ === 1'b1) + DFFSE _TECHMAP_REPLACE_ (.D(D), .Q(Q), .CLK(C), .CE(E), .SET(1'b0)); + else + DFFE _TECHMAP_REPLACE_ (.D(D), .Q(Q), .CLK(C), .CE(E)); + endgenerate + wire _TECHMAP_REMOVEINIT_Q_ = 1; +endmodule + +module \$_DFFE_PN_ #(parameter _TECHMAP_WIREINIT_Q_ = 1'bx) (input D, C, E, output Q); + generate + if (_TECHMAP_WIREINIT_Q_ === 1'b1) + DFFSE _TECHMAP_REPLACE_ (.D(D), .Q(Q), .CLK(C), .CE(!E), .SET(1'b0)); + else + DFFE _TECHMAP_REPLACE_ (.D(D), .Q(Q), .CLK(C), .CE(!E)); + endgenerate + wire _TECHMAP_REMOVEINIT_Q_ = 1; +endmodule // DFFNE D Flip-Flop with Negative-Edge Clock and Clock Enable -module \$_DFFE_NP_ (input D, C, E, output Q); DFFNE _TECHMAP_REPLACE_ (.D(D), .Q(Q), .CLK(C), .CE(E)); endmodule -module \$_DFFE_NN_ (input D, C, E, output Q); DFFNE _TECHMAP_REPLACE_ (.D(D), .Q(Q), .CLK(C), .CE(!E)); endmodule +module \$_DFFE_NP_ #(parameter _TECHMAP_WIREINIT_Q_ = 1'bx) (input D, C, E, output Q); + generate + if (_TECHMAP_WIREINIT_Q_ === 1'b1) + DFFNSE _TECHMAP_REPLACE_ (.D(D), .Q(Q), .CLK(C), .CE(E), .SET(1'b0)); + else + DFFNE _TECHMAP_REPLACE_ (.D(D), .Q(Q), .CLK(C), .CE(E)); + endgenerate + wire _TECHMAP_REMOVEINIT_Q_ = 1; +endmodule + +module \$_DFFE_NN_ #(parameter _TECHMAP_WIREINIT_Q_ = 1'bx) (input D, C, E, output Q); + generate + if (_TECHMAP_WIREINIT_Q_ === 1'b1) + DFFNSE _TECHMAP_REPLACE_ (.D(D), .Q(Q), .CLK(C), .CE(!E), .SET(1'b0)); + else + DFFNE _TECHMAP_REPLACE_ (.D(D), .Q(Q), .CLK(C), .CE(!E)); + endgenerate + wire _TECHMAP_REMOVEINIT_Q_ = 1; +endmodule // DFFR D Flip-Flop with Synchronous Reset -module \$__DFFS_PN0_ (input D, C, R, output Q); DFFR _TECHMAP_REPLACE_ (.D(D), .Q(Q), .CLK(C), .RESET(!R)); endmodule -module \$__DFFS_PP0_ (input D, C, R, output Q); DFFR _TECHMAP_REPLACE_ (.D(D), .Q(Q), .CLK(C), .RESET(R)); endmodule +module \$__DFFS_PN0_ #(parameter _TECHMAP_WIREINIT_Q_ = 1'bx) (input D, C, R, output Q); + DFFR _TECHMAP_REPLACE_ (.D(D), .Q(Q), .CLK(C), .RESET(!R)); + wire _TECHMAP_REMOVEINIT_Q_ = _TECHMAP_WIREINIT_Q_ !== 1'b1; +endmodule + +module \$__DFFS_PP0_ #(parameter _TECHMAP_WIREINIT_Q_ = 1'bx) (input D, C, R, output Q); + DFFR _TECHMAP_REPLACE_ (.D(D), .Q(Q), .CLK(C), .RESET(R)); + wire _TECHMAP_REMOVEINIT_Q_ = _TECHMAP_WIREINIT_Q_ !== 1'b1; +endmodule // DFFNR D Flip-Flop with Negative-Edge Clock and Synchronous Reset -module \$__DFFS_NN0_ (input D, C, R, output Q); DFFNR _TECHMAP_REPLACE_ (.D(D), .Q(Q), .CLK(C), .RESET(!R)); endmodule -module \$__DFFS_NP0_ (input D, C, R, output Q); DFFNR _TECHMAP_REPLACE_ (.D(D), .Q(Q), .CLK(C), .RESET(R)); endmodule +module \$__DFFS_NN0_ #(parameter _TECHMAP_WIREINIT_Q_ = 1'bx) (input D, C, R, output Q); + DFFNR _TECHMAP_REPLACE_ (.D(D), .Q(Q), .CLK(C), .RESET(!R)); + wire _TECHMAP_REMOVEINIT_Q_ = _TECHMAP_WIREINIT_Q_ !== 1'b1; +endmodule +module \$__DFFS_NP0_ #(parameter _TECHMAP_WIREINIT_Q_ = 1'bx) (input D, C, R, output Q); + DFFNR _TECHMAP_REPLACE_ (.D(D), .Q(Q), .CLK(C), .RESET(R)); + wire _TECHMAP_REMOVEINIT_Q_ = _TECHMAP_WIREINIT_Q_ !== 1'b1; +endmodule // DFFRE D Flip-Flop with Clock Enable and Synchronous Reset -module \$__DFFSE_PN0 (input D, C, R, E, output Q); DFFRE _TECHMAP_REPLACE_ (.D(D), .Q(Q), .CLK(C), .RESET(!R), .CE(E)); endmodule -module \$__DFFSE_PP0 (input D, C, R, E, output Q); DFFRE _TECHMAP_REPLACE_ (.D(D), .Q(Q), .CLK(C), .RESET(R), .CE(E)); endmodule +module \$__DFFSE_PN0 #(parameter _TECHMAP_WIREINIT_Q_ = 1'bx) (input D, C, R, E, output Q); + DFFRE _TECHMAP_REPLACE_ (.D(D), .Q(Q), .CLK(C), .RESET(!R), .CE(E)); + wire _TECHMAP_REMOVEINIT_Q_ = _TECHMAP_WIREINIT_Q_ !== 1'b1; +endmodule +module \$__DFFSE_PP0 #(parameter _TECHMAP_WIREINIT_Q_ = 1'bx) (input D, C, R, E, output Q); + DFFRE _TECHMAP_REPLACE_ (.D(D), .Q(Q), .CLK(C), .RESET(R), .CE(E)); + wire _TECHMAP_REMOVEINIT_Q_ = _TECHMAP_WIREINIT_Q_ !== 1'b1; +endmodule // DFFNRE D Flip-Flop with Negative-Edge Clock,Clock Enable, and Synchronous Reset -module \$__DFFNSE_PN0 (input D, C, R, E, output Q); DFFNRE _TECHMAP_REPLACE_ (.D(D), .Q(Q), .CLK(C), .RESET(!R), .CE(E)); endmodule -module \$__DFFNSE_PP0 (input D, C, R, E, output Q); DFFNRE _TECHMAP_REPLACE_ (.D(D), .Q(Q), .CLK(C), .RESET(R), .CE(E)); endmodule +module \$__DFFSE_NN0 #(parameter _TECHMAP_WIREINIT_Q_ = 1'bx) (input D, C, R, E, output Q); + DFFNRE _TECHMAP_REPLACE_ (.D(D), .Q(Q), .CLK(C), .RESET(!R), .CE(E)); + wire _TECHMAP_REMOVEINIT_Q_ = _TECHMAP_WIREINIT_Q_ !== 1'b1; +endmodule +module \$__DFFSE_NP0 #(parameter _TECHMAP_WIREINIT_Q_ = 1'bx) (input D, C, R, E, output Q); + DFFNRE _TECHMAP_REPLACE_ (.D(D), .Q(Q), .CLK(C), .RESET(R), .CE(E)); + wire _TECHMAP_REMOVEINIT_Q_ = _TECHMAP_WIREINIT_Q_ !== 1'b1; +endmodule // DFFS D Flip-Flop with Synchronous Set -module \$__DFFS_PN1_ (input D, C, R, output Q); DFFS _TECHMAP_REPLACE_ (.D(D), .Q(Q), .CLK(C), .SET(!R)); endmodule -module \$__DFFS_PP1_ (input D, C, R, output Q); DFFS _TECHMAP_REPLACE_ (.D(D), .Q(Q), .CLK(C), .SET(R)); endmodule +module \$__DFFS_PN1_ #(parameter _TECHMAP_WIREINIT_Q_ = 1'bx) (input D, C, R, output Q); + DFFS _TECHMAP_REPLACE_ (.D(D), .Q(Q), .CLK(C), .SET(!R)); + wire _TECHMAP_REMOVEINIT_Q_ = _TECHMAP_WIREINIT_Q_ !== 1'b0; +endmodule +module \$__DFFS_PP1_ #(parameter _TECHMAP_WIREINIT_Q_ = 1'bx) (input D, C, R, output Q); + DFFS _TECHMAP_REPLACE_ (.D(D), .Q(Q), .CLK(C), .SET(R)); + wire _TECHMAP_REMOVEINIT_Q_ = _TECHMAP_WIREINIT_Q_ !== 1'b0; +endmodule // DFFNS D Flip-Flop with Negative-Edge Clock and Synchronous Set -module \$__DFFS_NN1_ (input D, C, R, output Q); DFFNS _TECHMAP_REPLACE_ (.D(D), .Q(Q), .CLK(C), .SET(!R)); endmodule -module \$__DFFS_NP1_ (input D, C, R, output Q); DFFNS _TECHMAP_REPLACE_ (.D(D), .Q(Q), .CLK(C), .SET(R)); endmodule +module \$__DFFS_NN1_ #(parameter _TECHMAP_WIREINIT_Q_ = 1'bx) (input D, C, R, output Q); + DFFNS _TECHMAP_REPLACE_ (.D(D), .Q(Q), .CLK(C), .SET(!R)); + wire _TECHMAP_REMOVEINIT_Q_ = _TECHMAP_WIREINIT_Q_ !== 1'b0; +endmodule +module \$__DFFS_NP1_ #(parameter _TECHMAP_WIREINIT_Q_ = 1'bx) (input D, C, R, output Q); + DFFNS _TECHMAP_REPLACE_ (.D(D), .Q(Q), .CLK(C), .SET(R)); + wire _TECHMAP_REMOVEINIT_Q_ = _TECHMAP_WIREINIT_Q_ !== 1'b0; +endmodule // DFFSE D Flip-Flop with Clock Enable and Synchronous Set -module \$__DFFSE_PN1 (input D, C, R, E, output Q); DFFSE _TECHMAP_REPLACE_ (.D(D), .Q(Q), .CLK(C), .SET(!R), .CE(E)); endmodule -module \$__DFFSE_PP1 (input D, C, R, E, output Q); DFFSE _TECHMAP_REPLACE_ (.D(D), .Q(Q), .CLK(C), .SET(R), .CE(E)); endmodule +module \$__DFFSE_PN1 #(parameter _TECHMAP_WIREINIT_Q_ = 1'bx) (input D, C, R, E, output Q); + DFFSE _TECHMAP_REPLACE_ (.D(D), .Q(Q), .CLK(C), .SET(!R), .CE(E)); + wire _TECHMAP_REMOVEINIT_Q_ = _TECHMAP_WIREINIT_Q_ !== 1'b0; +endmodule +module \$__DFFSE_PP1 #(parameter _TECHMAP_WIREINIT_Q_ = 1'bx) (input D, C, R, E, output Q); + DFFSE _TECHMAP_REPLACE_ (.D(D), .Q(Q), .CLK(C), .SET(R), .CE(E)); + wire _TECHMAP_REMOVEINIT_Q_ = _TECHMAP_WIREINIT_Q_ !== 1'b0; +endmodule // DFFNSE D Flip-Flop with Negative-Edge Clock,Clock Enable,and Synchronous Set -module \$__DFFSE_NN1 (input D, C, R, E, output Q); DFFNSE _TECHMAP_REPLACE_ (.D(D), .Q(Q), .CLK(C), .SET(!R), .CE(E)); endmodule -module \$__DFFSE_NP1 (input D, C, R, E, output Q); DFFNSE _TECHMAP_REPLACE_ (.D(D), .Q(Q), .CLK(C), .SET(R), .CE(E)); endmodule +module \$__DFFSE_NN1 #(parameter _TECHMAP_WIREINIT_Q_ = 1'bx) (input D, C, R, E, output Q); + DFFNSE _TECHMAP_REPLACE_ (.D(D), .Q(Q), .CLK(C), .SET(!R), .CE(E)); + wire _TECHMAP_REMOVEINIT_Q_ = _TECHMAP_WIREINIT_Q_ !== 1'b0; +endmodule +module \$__DFFSE_NP1 #(parameter _TECHMAP_WIREINIT_Q_ = 1'bx) (input D, C, R, E, output Q); + DFFNSE _TECHMAP_REPLACE_ (.D(D), .Q(Q), .CLK(C), .SET(R), .CE(E)); + wire _TECHMAP_REMOVEINIT_Q_ = _TECHMAP_WIREINIT_Q_ !== 1'b0; +endmodule // DFFP D Flip-Flop with Asynchronous Preset -module \$_DFF_PP1_ (input D, C, R, output Q); DFFP _TECHMAP_REPLACE_ (.D(D), .Q(Q), .CLK(C), .PRESET(R)); endmodule -module \$_DFF_PN1_ (input D, C, R, output Q); DFFP _TECHMAP_REPLACE_ (.D(D), .Q(Q), .CLK(C), .PRESET(!R)); endmodule +module \$_DFF_PP1_ #(parameter _TECHMAP_WIREINIT_Q_ = 1'bx) (input D, C, R, output Q); + DFFP _TECHMAP_REPLACE_ (.D(D), .Q(Q), .CLK(C), .PRESET(R)); + wire _TECHMAP_REMOVEINIT_Q_ = _TECHMAP_WIREINIT_Q_ !== 1'b0; +endmodule +module \$_DFF_PN1_ #(parameter _TECHMAP_WIREINIT_Q_ = 1'bx) (input D, C, R, output Q); + DFFP _TECHMAP_REPLACE_ (.D(D), .Q(Q), .CLK(C), .PRESET(!R)); + wire _TECHMAP_REMOVEINIT_Q_ = _TECHMAP_WIREINIT_Q_ !== 1'b0; +endmodule // DFFNP D Flip-Flop with Negative-Edge Clock and Asynchronous Preset -module \$_DFF_NP1_ (input D, C, R, output Q); DFFNP _TECHMAP_REPLACE_ (.D(D), .Q(Q), .CLK(C), .PRESET(R)); endmodule -module \$_DFF_NN1_ (input D, C, R, output Q); DFFNP _TECHMAP_REPLACE_ (.D(D), .Q(Q), .CLK(C), .PRESET(!R)); endmodule +module \$_DFF_NP1_ #(parameter _TECHMAP_WIREINIT_Q_ = 1'bx) (input D, C, R, output Q); + DFFNP _TECHMAP_REPLACE_ (.D(D), .Q(Q), .CLK(C), .PRESET(R)); + wire _TECHMAP_REMOVEINIT_Q_ = _TECHMAP_WIREINIT_Q_ !== 1'b0; +endmodule +module \$_DFF_NN1_ #(parameter _TECHMAP_WIREINIT_Q_ = 1'bx) (input D, C, R, output Q); + DFFNP _TECHMAP_REPLACE_ (.D(D), .Q(Q), .CLK(C), .PRESET(!R)); + wire _TECHMAP_REMOVEINIT_Q_ = _TECHMAP_WIREINIT_Q_ !== 1'b0; +endmodule // DFFC D Flip-Flop with Asynchronous Clear -module \$_DFF_PP0_ (input D, C, R, output Q); DFFC _TECHMAP_REPLACE_ (.D(D), .Q(Q), .CLK(C), .CLEAR(R)); endmodule -module \$_DFF_PN0_ (input D, C, R, output Q); DFFC _TECHMAP_REPLACE_ (.D(D), .Q(Q), .CLK(C), .CLEAR(!R)); endmodule +module \$_DFF_PP0_ #(parameter _TECHMAP_WIREINIT_Q_ = 1'bx) (input D, C, R, output Q); + DFFC _TECHMAP_REPLACE_ (.D(D), .Q(Q), .CLK(C), .CLEAR(R)); + wire _TECHMAP_REMOVEINIT_Q_ = _TECHMAP_WIREINIT_Q_ !== 1'b1; +endmodule +module \$_DFF_PN0_ #(parameter _TECHMAP_WIREINIT_Q_ = 1'bx) (input D, C, R, output Q); + DFFC _TECHMAP_REPLACE_ (.D(D), .Q(Q), .CLK(C), .CLEAR(!R)); + wire _TECHMAP_REMOVEINIT_Q_ = _TECHMAP_WIREINIT_Q_ !== 1'b1; +endmodule // DFFNC D Flip-Flop with Negative-Edge Clock and Asynchronous Clear -module \$_DFF_NP0_ (input D, C, R, output Q); DFFNC _TECHMAP_REPLACE_ (.D(D), .Q(Q), .CLK(C), .CLEAR(R)); endmodule -module \$_DFF_NN0_ (input D, C, R, output Q); DFFNC _TECHMAP_REPLACE_ (.D(D), .Q(Q), .CLK(C), .CLEAR(!R)); endmodule +module \$_DFF_NP0_ #(parameter _TECHMAP_WIREINIT_Q_ = 1'bx) (input D, C, R, output Q); + DFFNC _TECHMAP_REPLACE_ (.D(D), .Q(Q), .CLK(C), .CLEAR(R)); + wire _TECHMAP_REMOVEINIT_Q_ = _TECHMAP_WIREINIT_Q_ !== 1'b1; +endmodule +module \$_DFF_NN0_ #(parameter _TECHMAP_WIREINIT_Q_ = 1'bx) (input D, C, R, output Q); + DFFNC _TECHMAP_REPLACE_ (.D(D), .Q(Q), .CLK(C), .CLEAR(!R)); + wire _TECHMAP_REMOVEINIT_Q_ = _TECHMAP_WIREINIT_Q_ !== 1'b1; +endmodule // DFFPE D Flip-Flop with Clock Enable and Asynchronous Preset -module \$__DFFE_PP1 (input D, C, R, E, output Q); DFFPE _TECHMAP_REPLACE_ (.D(D), .Q(Q), .CLK(C), .PRESET(R), .CE(E)); endmodule -module \$__DFFE_PN1 (input D, C, R, E, output Q); DFFPE _TECHMAP_REPLACE_ (.D(D), .Q(Q), .CLK(C), .PRESET(!R), .CE(E)); endmodule +module \$__DFFE_PP1 #(parameter _TECHMAP_WIREINIT_Q_ = 1'bx) (input D, C, R, E, output Q); + DFFPE _TECHMAP_REPLACE_ (.D(D), .Q(Q), .CLK(C), .PRESET(R), .CE(E)); + wire _TECHMAP_REMOVEINIT_Q_ = _TECHMAP_WIREINIT_Q_ !== 1'b0; +endmodule +module \$__DFFE_PN1 #(parameter _TECHMAP_WIREINIT_Q_ = 1'bx) (input D, C, R, E, output Q); + DFFPE _TECHMAP_REPLACE_ (.D(D), .Q(Q), .CLK(C), .PRESET(!R), .CE(E)); + wire _TECHMAP_REMOVEINIT_Q_ = _TECHMAP_WIREINIT_Q_ !== 1'b0; +endmodule // DFFNPE D Flip-Flop with Negative-Edge Clock,Clock Enable, and Asynchronous Preset -module \$__DFFE_NP1 (input D, C, R, E, output Q); DFFNPE _TECHMAP_REPLACE_ (.D(D), .Q(Q), .CLK(C), .PRESET(R), .CE(E)); endmodule -module \$__DFFE_NN1 (input D, C, R, E, output Q); DFFNPE _TECHMAP_REPLACE_ (.D(D), .Q(Q), .CLK(C), .PRESET(!R), .CE(E)); endmodule +module \$__DFFE_NP1 #(parameter _TECHMAP_WIREINIT_Q_ = 1'bx) (input D, C, R, E, output Q); + DFFNPE _TECHMAP_REPLACE_ (.D(D), .Q(Q), .CLK(C), .PRESET(R), .CE(E)); + wire _TECHMAP_REMOVEINIT_Q_ = _TECHMAP_WIREINIT_Q_ !== 1'b0; +endmodule +module \$__DFFE_NN1 #(parameter _TECHMAP_WIREINIT_Q_ = 1'bx) (input D, C, R, E, output Q); + DFFNPE _TECHMAP_REPLACE_ (.D(D), .Q(Q), .CLK(C), .PRESET(!R), .CE(E)); + wire _TECHMAP_REMOVEINIT_Q_ = _TECHMAP_WIREINIT_Q_ !== 1'b0; +endmodule // DFFCE D Flip-Flop with Clock Enable and Asynchronous Clear -module \$__DFFE_PP0 (input D, C, R, E, output Q); DFFCE _TECHMAP_REPLACE_ (.D(D), .Q(Q), .CLK(C), .CLEAR(R), .CE(E)); endmodule -module \$__DFFE_PN0 (input D, C, R, E, output Q); DFFCE _TECHMAP_REPLACE_ (.D(D), .Q(Q), .CLK(C), .CLEAR(!R), .CE(E)); endmodule +module \$__DFFE_PP0 #(parameter _TECHMAP_WIREINIT_Q_ = 1'bx) (input D, C, R, E, output Q); + DFFCE _TECHMAP_REPLACE_ (.D(D), .Q(Q), .CLK(C), .CLEAR(R), .CE(E)); + wire _TECHMAP_REMOVEINIT_Q_ = _TECHMAP_WIREINIT_Q_ !== 1'b1; +endmodule +module \$__DFFE_PN0 #(parameter _TECHMAP_WIREINIT_Q_ = 1'bx) (input D, C, R, E, output Q); + DFFCE _TECHMAP_REPLACE_ (.D(D), .Q(Q), .CLK(C), .CLEAR(!R), .CE(E)); + wire _TECHMAP_REMOVEINIT_Q_ = _TECHMAP_WIREINIT_Q_ !== 1'b1; +endmodule // DFFNCE D Flip-Flop with Negative-Edge Clock,Clock Enable and Asynchronous Clear -module \$__DFFE_NP0 (input D, C, R, E, output Q); DFFNCE _TECHMAP_REPLACE_ (.D(D), .Q(Q), .CLK(C), .CLEAR(R), .CE(E)); endmodule -module \$__DFFE_NN0 (input D, C, R, E, output Q); DFFNCE _TECHMAP_REPLACE_ (.D(D), .Q(Q), .CLK(C), .CLEAR(!R), .CE(E)); endmodule +module \$__DFFE_NP0 #(parameter _TECHMAP_WIREINIT_Q_ = 1'bx) (input D, C, R, E, output Q); + DFFNCE _TECHMAP_REPLACE_ (.D(D), .Q(Q), .CLK(C), .CLEAR(R), .CE(E)); + wire _TECHMAP_REMOVEINIT_Q_ = _TECHMAP_WIREINIT_Q_ !== 1'b1; +endmodule +module \$__DFFE_NN0 #(parameter _TECHMAP_WIREINIT_Q_ = 1'bx) (input D, C, R, E, output Q); + DFFNCE _TECHMAP_REPLACE_ (.D(D), .Q(Q), .CLK(C), .CLEAR(!R), .CE(E)); + wire _TECHMAP_REMOVEINIT_Q_ = _TECHMAP_WIREINIT_Q_ !== 1'b1; +endmodule module \$lut (A, Y); diff --git a/techlibs/gowin/synth_gowin.cc b/techlibs/gowin/synth_gowin.cc index 3c1426414..49fde540c 100644 --- a/techlibs/gowin/synth_gowin.cc +++ b/techlibs/gowin/synth_gowin.cc @@ -67,6 +67,9 @@ struct SynthGowinPass : public ScriptPass log(" -nowidelut\n"); log(" do not use muxes to implement LUTs larger than LUT4s\n"); log("\n"); + log(" -noiopads\n"); + log(" do not emit IOB at top level ports\n"); + log("\n"); log(" -abc9\n"); log(" use new ABC9 flow (EXPERIMENTAL)\n"); log("\n"); @@ -77,7 +80,7 @@ struct SynthGowinPass : public ScriptPass } string top_opt, vout_file; - bool retime, nobram, nodram, flatten, nodffe, nowidelut, abc9; + bool retime, nobram, nodram, flatten, nodffe, nowidelut, abc9, noiopads; void clear_flags() YS_OVERRIDE { @@ -90,6 +93,7 @@ struct SynthGowinPass : public ScriptPass nodram = false; nowidelut = false; abc9 = false; + noiopads = false; } void execute(std::vector<std::string> args, RTLIL::Design *design) YS_OVERRIDE @@ -144,6 +148,10 @@ struct SynthGowinPass : public ScriptPass abc9 = true; continue; } + if (args[argidx] == "-noiopads") { + noiopads = true; + continue; + } break; } extra_args(args, argidx, design); @@ -236,8 +244,9 @@ struct SynthGowinPass : public ScriptPass run("techmap -map +/gowin/cells_map.v"); run("setundef -undriven -params -zero"); run("hilomap -singleton -hicell VCC V -locell GND G"); - run("iopadmap -bits -inpad IBUF O:I -outpad OBUF I:O " - "-toutpad TBUF OEN:I:O -tinoutpad IOBUF OEN:O:I:IO", "(unless -noiopads)"); + if (!noiopads || help_mode) + run("iopadmap -bits -inpad IBUF O:I -outpad OBUF I:O " + "-toutpad TBUF OEN:I:O -tinoutpad IOBUF OEN:O:I:IO", "(unless -noiopads)"); run("clean"); } |