From ff0912c75e2b15c02c9512466179e4b2a15eb3d1 Mon Sep 17 00:00:00 2001 From: Eddie Hung Date: Fri, 5 Apr 2019 14:43:06 -0700 Subject: synth_xilinx to techmap FFs after abc call, otherwise -retime fails --- techlibs/xilinx/synth_xilinx.cc | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) (limited to 'techlibs/xilinx') diff --git a/techlibs/xilinx/synth_xilinx.cc b/techlibs/xilinx/synth_xilinx.cc index 805ae8e6e..99c2be420 100644 --- a/techlibs/xilinx/synth_xilinx.cc +++ b/techlibs/xilinx/synth_xilinx.cc @@ -256,9 +256,9 @@ struct SynthXilinxPass : public Pass Pass::call(design, "opt -full"); if (vpr) { - Pass::call(design, "techmap -map +/techmap.v -map +/xilinx/arith_map.v -map +/xilinx/ff_map.v -D _EXPLICIT_CARRY"); + Pass::call(design, "techmap -map +/techmap.v -map +/xilinx/arith_map.v -D _EXPLICIT_CARRY"); } else { - Pass::call(design, "techmap -map +/techmap.v -map +/xilinx/arith_map.v -map +/xilinx/ff_map.v"); + Pass::call(design, "techmap -map +/techmap.v -map +/xilinx/arith_map.v"); } Pass::call(design, "hierarchy -check"); @@ -269,7 +269,7 @@ struct SynthXilinxPass : public Pass { Pass::call(design, "abc -luts 2:2,3,6:5,10,20" + string(retime ? " -dff" : "")); Pass::call(design, "clean"); - Pass::call(design, "techmap -map +/xilinx/lut_map.v"); + Pass::call(design, "techmap -map +/xilinx/lut_map.v -map +/xilinx/ff_map.v"); } if (check_label(active, run_from, run_to, "map_cells")) -- cgit v1.2.3 From 8b6085254a962da46d46724f2333abd076d32928 Mon Sep 17 00:00:00 2001 From: Eddie Hung Date: Fri, 5 Apr 2019 15:15:13 -0700 Subject: Resolve @daveshah1 comment, update synth_xilinx help --- techlibs/xilinx/ff_map.v | 8 ++++---- techlibs/xilinx/synth_xilinx.cc | 8 +++++--- 2 files changed, 9 insertions(+), 7 deletions(-) (limited to 'techlibs/xilinx') diff --git a/techlibs/xilinx/ff_map.v b/techlibs/xilinx/ff_map.v index 13beaa6ae..c323206e8 100644 --- a/techlibs/xilinx/ff_map.v +++ b/techlibs/xilinx/ff_map.v @@ -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 diff --git a/techlibs/xilinx/synth_xilinx.cc b/techlibs/xilinx/synth_xilinx.cc index 99c2be420..abc164533 100644 --- a/techlibs/xilinx/synth_xilinx.cc +++ b/techlibs/xilinx/synth_xilinx.cc @@ -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"); -- cgit v1.2.3 From 23a6533e98df384afdeb38891404da17533c836b Mon Sep 17 00:00:00 2001 From: Eddie Hung Date: Fri, 5 Apr 2019 15:31:54 -0700 Subject: Retry --- techlibs/xilinx/ff_map.v | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'techlibs/xilinx') diff --git a/techlibs/xilinx/ff_map.v b/techlibs/xilinx/ff_map.v index c323206e8..3d5f78770 100644 --- a/techlibs/xilinx/ff_map.v +++ b/techlibs/xilinx/ff_map.v @@ -30,7 +30,7 @@ module \$_DFFE_PP_ (input D, C, E, output Q); FDRE #(.INIT(|0)) _TECHMAP_REPL 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); \$_DFF_PN0_ _TECHMAP_REPLACE_ (.D(D), .Q(Q), .C(C), .R(~R)); endmodule +module \$_DFF_PN0_ (input D, C, R, output Q); \$_DFF_PP0_ _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); \$_DFF_NP1 _TECHMAP_REPLACE_ (.D(D), .Q(Q), .C(C), .R(~R)); endmodule -- cgit v1.2.3 From 97587015748eb9f7e0d55a1121f604b8b462b45a Mon Sep 17 00:00:00 2001 From: Eddie Hung Date: Fri, 5 Apr 2019 15:39:05 -0700 Subject: Move techamp t:$_DFF_?N? to before abc call --- techlibs/xilinx/synth_xilinx.cc | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) (limited to 'techlibs/xilinx') diff --git a/techlibs/xilinx/synth_xilinx.cc b/techlibs/xilinx/synth_xilinx.cc index abc164533..397c83ac6 100644 --- a/techlibs/xilinx/synth_xilinx.cc +++ b/techlibs/xilinx/synth_xilinx.cc @@ -111,10 +111,10 @@ struct SynthXilinxPass : public Pass log(" dff2dffe\n"); log(" opt -full\n"); log(" techmap -map +/techmap.v -map +/xilinx/arith_map.v\n"); - log(" techmap -map +/techmap.v -map +/xilinx/ff_map.v t:$_DFF_?N?\n"); log(" opt -fast\n"); log("\n"); log(" map_luts:\n"); + log(" techmap -map +/techmap.v -map +/xilinx/ff_map.v t:$_DFF_?N?\n"); log(" abc -luts 2:2,3,6:5,10,20 [-dff]\n"); log(" clean\n"); log(" techmap -map +/xilinx/lut_map.v -map +/xilinx/ff_map.v"); @@ -261,7 +261,6 @@ struct SynthXilinxPass : public Pass } else { Pass::call(design, "techmap -map +/techmap.v -map +/xilinx/arith_map.v"); } - Pass::call(design, "techmap -map +/techmap.v -map +/xilinx/ff_map.v t:$_DFF_?N?"); Pass::call(design, "hierarchy -check"); Pass::call(design, "opt -fast"); @@ -269,6 +268,7 @@ struct SynthXilinxPass : public Pass if (check_label(active, run_from, run_to, "map_luts")) { + Pass::call(design, "techmap -map +/techmap.v -map +/xilinx/ff_map.v t:$_DFF_?N?"); Pass::call(design, "abc -luts 2:2,3,6:5,10,20" + string(retime ? " -dff" : "")); Pass::call(design, "clean"); Pass::call(design, "techmap -map +/xilinx/lut_map.v -map +/xilinx/ff_map.v"); -- cgit v1.2.3