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	Resolve @daveshah1 comment, update synth_xilinx help
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					 2 changed files with 9 additions and 7 deletions
				
			
		|  | @ -28,14 +28,14 @@ module  \$_DFF_P_   (input D, C, output Q);    FDRE   #(.INIT(|0)) _TECHMAP_REPL | |||
| module  \$_DFFE_NP_ (input D, C, E, output Q); FDRE_1 #(.INIT(|0)) _TECHMAP_REPLACE_ (.D(D), .Q(Q), .C(C), .CE(E),    .R(1'b0)); endmodule | ||||
| module  \$_DFFE_PP_ (input D, C, E, output Q); FDRE   #(.INIT(|0)) _TECHMAP_REPLACE_ (.D(D), .Q(Q), .C(C), .CE(E),    .R(1'b0)); endmodule | ||||
| 
 | ||||
| module  \$_DFF_NN0_ (input D, C, R, output Q); FDCE_1 #(.INIT(|0)) _TECHMAP_REPLACE_ (.D(D), .Q(Q), .C(C), .CE(1'b1), .CLR(!R)); endmodule | ||||
| module  \$_DFF_NN0_ (input D, C, R, output Q); \$_DFF_NP0_         _TECHMAP_REPLACE_ (.D(D), .Q(Q), .C(C),              .R(~R)); endmodule | ||||
| module  \$_DFF_NP0_ (input D, C, R, output Q); FDCE_1 #(.INIT(|0)) _TECHMAP_REPLACE_ (.D(D), .Q(Q), .C(C), .CE(1'b1), .CLR( R)); endmodule | ||||
| module  \$_DFF_PN0_ (input D, C, R, output Q); FDCE   #(.INIT(|0)) _TECHMAP_REPLACE_ (.D(D), .Q(Q), .C(C), .CE(1'b1), .CLR(!R)); endmodule | ||||
| module  \$_DFF_PN0_ (input D, C, R, output Q); \$_DFF_PN0_         _TECHMAP_REPLACE_ (.D(D), .Q(Q), .C(C),              .R(~R)); endmodule | ||||
| module  \$_DFF_PP0_ (input D, C, R, output Q); FDCE   #(.INIT(|0)) _TECHMAP_REPLACE_ (.D(D), .Q(Q), .C(C), .CE(1'b1), .CLR( R)); endmodule | ||||
| 
 | ||||
| module  \$_DFF_NN1_ (input D, C, R, output Q); FDPE_1 #(.INIT(|0)) _TECHMAP_REPLACE_ (.D(D), .Q(Q), .C(C), .CE(1'b1), .PRE(!R)); endmodule | ||||
| module  \$_DFF_NN1_ (input D, C, R, output Q); \$_DFF_NP1          _TECHMAP_REPLACE_ (.D(D), .Q(Q), .C(C),              .R(~R)); endmodule | ||||
| module  \$_DFF_NP1_ (input D, C, R, output Q); FDPE_1 #(.INIT(|0)) _TECHMAP_REPLACE_ (.D(D), .Q(Q), .C(C), .CE(1'b1), .PRE( R)); endmodule | ||||
| module  \$_DFF_PN1_ (input D, C, R, output Q); FDPE   #(.INIT(|0)) _TECHMAP_REPLACE_ (.D(D), .Q(Q), .C(C), .CE(1'b1), .PRE(!R)); endmodule | ||||
| module  \$_DFF_PN1_ (input D, C, R, output Q); \$_DFF_PP1          _TECHMAP_REPLACE_ (.D(D), .Q(Q), .C(C),              .R(~R)); endmodule | ||||
| module  \$_DFF_PP1_ (input D, C, R, output Q); FDPE   #(.INIT(|0)) _TECHMAP_REPLACE_ (.D(D), .Q(Q), .C(C), .CE(1'b1), .PRE( R)); endmodule | ||||
| 
 | ||||
| `endif | ||||
|  |  | |||
|  | @ -110,13 +110,14 @@ struct SynthXilinxPass : public Pass | |||
| 		log("        dffsr2dff\n"); | ||||
| 		log("        dff2dffe\n"); | ||||
| 		log("        opt -full\n"); | ||||
| 		log("        techmap -map +/techmap.v -map +/xilinx/arith_map.v -map +/xilinx/ff_map.v\n"); | ||||
| 		log("        techmap -map +/techmap.v -map +/xilinx/arith_map.v\n"); | ||||
| 		log("        techmap -map +/techmap.v -map +/xilinx/ff_map.v t:$_DFF_?N?\n"); | ||||
| 		log("        opt -fast\n"); | ||||
| 		log("\n"); | ||||
| 		log("    map_luts:\n"); | ||||
| 		log("        abc -luts 2:2,3,6:5,10,20 [-dff] (without '-vpr' only!)\n"); | ||||
| 		log("        abc -lut 5 [-dff] (with '-vpr' only!)\n"); | ||||
| 		log("        abc -luts 2:2,3,6:5,10,20 [-dff]\n"); | ||||
| 		log("        clean\n"); | ||||
| 		log("        techmap -map +/xilinx/lut_map.v -map +/xilinx/ff_map.v"); | ||||
| 		log("\n"); | ||||
| 		log("    map_cells:\n"); | ||||
| 		log("        techmap -map +/xilinx/cells_map.v\n"); | ||||
|  | @ -260,6 +261,7 @@ struct SynthXilinxPass : public Pass | |||
| 			} else { | ||||
| 				Pass::call(design, "techmap -map +/techmap.v -map +/xilinx/arith_map.v"); | ||||
| 			} | ||||
| 			Pass::call(design, "techmap -map +/techmap.v -map +/xilinx/ff_map.v t:$_DFF_?N?"); | ||||
| 
 | ||||
| 			Pass::call(design, "hierarchy -check"); | ||||
| 			Pass::call(design, "opt -fast"); | ||||
|  |  | |||
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