mirror of https://github.com/YosysHQ/yosys.git
xilinx: cleanup DSP48E1 handling for abc9
This commit is contained in:
Eddie Hung
parent
f65fc845e5
commit
512596760b
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@ -771,38 +771,15 @@ module DSP48E1 (
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.RSTM(RSTM),
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.RSTP(RSTP)
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);
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generate
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wire [29:0] $A;
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wire [17:0] $B;
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wire [47:0] $C;
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wire [24:0] $D;
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wire [47:0] $PCIN;
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if (PREG == 0) begin
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if (MREG == 0 && AREG == 0) assign $A = A;
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else assign $A = 30'bx;
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if (MREG == 0 && BREG == 0) assign $B = B;
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else assign $B = 18'bx;
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if (MREG == 0 && DREG == 0) assign $D = D;
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else assign $D = 25'bx;
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if (CREG == 0) assign $C = C;
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else assign $C = 48'bx;
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assign $PCIN = PCIN;
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end
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else begin
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assign $A = 30'bx, $B = 18'bx, $C = 48'bx, $D = 25'bx, $PCIN = 48'bx;
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end
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if (USE_MULT == "MULTIPLY" && USE_DPORT == "FALSE")
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$__ABC9_DSP48E1_MULT dsp_comb(.$A($A), .$B($B), .$C($C), .$D($D), .$P($P), .$PCIN($PCIN), .$PCOUT($PCOUT), .P(P), .PCOUT(PCOUT));
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else if (USE_MULT == "MULTIPLY" && USE_DPORT == "TRUE")
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$__ABC9_DSP48E1_MULT_DPORT dsp_comb(.$A($A), .$B($B), .$C($C), .$D($D), .$P($P), .$PCIN($PCIN), .$PCOUT($PCOUT), .P(P), .PCOUT(PCOUT));
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else if (USE_MULT == "NONE" && USE_DPORT == "FALSE")
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$__ABC9_DSP48E1 dsp_comb(.$A($A), .$B($B), .$C($C), .$D($D), .$P($P), .$PCIN($PCIN), .$PCOUT($PCOUT), .P(P), .PCOUT(PCOUT));
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else
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$error("Invalid DSP48E1 configuration");
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endgenerate
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$__ABC9_DSP48E1 #(
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.AREG(AREG),
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.BREG(BREG),
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.CREG(CREG),
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.DREG(DREG),
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.MREG(MREG),
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.PREG(PREG),
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.USE_DPORT(USE_DPORT),
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.USE_MULT(USE_MULT)
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) dsp_comb (
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.$A(A), .$B(B), .$C(C), .$D(D), .$P($P), .$PCIN(PCIN), .$PCOUT($PCOUT), .P(P), .PCOUT(PCOUT));
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endmodule
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@ -94,10 +94,9 @@ module \$__ABC9_RAM7 (input A, input [6:0] S, output Y);
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endspecify
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endmodule
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// Boxes used to represent the comb behaviour of various modes
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// of DSP48E1
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`define ABC9_DSP48E1(__NAME__) """
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module __NAME__ (
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// Boxes used to represent the comb behaviour of DSP48E1
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(* abc9_box *)
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module $__ABC9_DSP48E1 (
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input [29:0] $A,
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input [17:0] $B,
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input [47:0] $C,
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@ -106,50 +105,105 @@ module __NAME__ (
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input [47:0] $PCIN,
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input [47:0] $PCOUT,
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output [47:0] P,
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output [47:0] PCOUT);
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"""
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(* abc9_box *) `ABC9_DSP48E1($__ABC9_DSP48E1_MULT)
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specify
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($A *> P) = 2823;
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($B *> P) = 2690;
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($C *> P) = 1325;
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($PCIN *> P) = 1107;
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($P *> P) = 0;
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($A *> PCOUT) = 2970;
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($B *> PCOUT) = 2838;
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($C *> PCOUT) = 1474;
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($PCIN *> PCOUT) = 1255;
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($PCOUT *> PCOUT) = 0;
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endspecify
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output [47:0] PCOUT
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);
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parameter integer AREG = 1;
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parameter integer BREG = 1;
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parameter integer CREG = 1;
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parameter integer DREG = 1;
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parameter integer MREG = 1;
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parameter integer PREG = 1;
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parameter USE_DPORT = "FALSE";
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parameter USE_MULT = "MULTIPLY";
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function integer \A.P.comb ;
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begin
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if (USE_MULT == "MULTIPLY" && USE_DPORT == "FALSE") \A.P.comb = 2823;
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else if (USE_MULT == "MULTIPLY" && USE_DPORT == "TRUE") \A.P.comb = 3806;
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else if (USE_MULT == "NONE" && USE_DPORT == "FALSE") \A.P.comb = 1523;
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end
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endfunction
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function integer \A.PCOUT.comb ;
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begin
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if (USE_MULT == "MULTIPLY" && USE_DPORT == "FALSE") \A.PCOUT.comb = 2970;
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else if (USE_MULT == "MULTIPLY" && USE_DPORT == "TRUE") \A.PCOUT.comb = 3954;
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else if (USE_MULT == "NONE" && USE_DPORT == "FALSE") \A.PCOUT.comb = 1671;
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end
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endfunction
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function integer \B.P.comb ;
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begin
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if (USE_MULT == "MULTIPLY" && USE_DPORT == "FALSE") \B.P.comb = 2690;
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else if (USE_MULT == "MULTIPLY" && USE_DPORT == "TRUE") \B.P.comb = 2690;
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else if (USE_MULT == "NONE" && USE_DPORT == "FALSE") \B.P.comb = 1509;
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end
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endfunction
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function integer \B.PCOUT.comb ;
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begin
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if (USE_MULT == "MULTIPLY" && USE_DPORT == "FALSE") \B.PCOUT.comb = 2838;
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else if (USE_MULT == "MULTIPLY" && USE_DPORT == "TRUE") \B.PCOUT.comb = 2838;
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else if (USE_MULT == "NONE" && USE_DPORT == "FALSE") \B.PCOUT.comb = 1658;
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end
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endfunction
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function integer \C.P.comb ;
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begin
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if (USE_MULT == "MULTIPLY" && USE_DPORT == "FALSE") \C.P.comb = 1325;
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else if (USE_MULT == "MULTIPLY" && USE_DPORT == "TRUE") \C.P.comb = 1325;
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else if (USE_MULT == "NONE" && USE_DPORT == "FALSE") \C.P.comb = 1325;
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end
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endfunction
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function integer \C.PCOUT.comb ;
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begin
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if (USE_MULT == "MULTIPLY" && USE_DPORT == "FALSE") \C.PCOUT.comb = 1474;
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else if (USE_MULT == "MULTIPLY" && USE_DPORT == "TRUE") \C.PCOUT.comb = 1474;
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else if (USE_MULT == "NONE" && USE_DPORT == "FALSE") \C.PCOUT.comb = 1474;
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end
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endfunction
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function integer \D.P.comb ;
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begin
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if (USE_MULT == "MULTIPLY" && USE_DPORT == "TRUE") \D.P.comb = 3717;
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end
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endfunction
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function integer \D.PCOUT.comb ;
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begin
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if (USE_MULT == "MULTIPLY" && USE_DPORT == "TRUE") \D.PCOUT.comb = 3700;
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end
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endfunction
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specify
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($P *> P) = 0;
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($PCOUT *> PCOUT) = 0;
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endspecify
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// Identical comb delays to DSP48E1 in cells_sim.v
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generate
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if (PREG == 0 && MREG == 0 && AREG == 0)
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specify
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($A *> P) = \A.P.comb ();
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($A *> PCOUT) = \A.PCOUT.comb ();
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endspecify
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if (PREG == 0 && MREG == 0 && BREG == 0)
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specify
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($B *> P) = \B.P.comb ();
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($B *> PCOUT) = \B.PCOUT.comb ();
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endspecify
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if (PREG == 0 && CREG == 0)
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specify
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($C *> P) = \C.P.comb ();
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($C *> PCOUT) = \C.PCOUT.comb ();
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endspecify
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if (PREG == 0 && MREG == 0 && DREG == 0)
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specify
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($D *> P) = \D.P.comb ();
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($D *> PCOUT) = \D.PCOUT.comb ();
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endspecify
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if (PREG == 0)
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specify
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($PCIN *> P) = 1107;
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($PCIN *> PCOUT) = 1255;
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endspecify
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endgenerate
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endmodule
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(* abc9_box *) `ABC9_DSP48E1($__ABC9_DSP48E1_MULT_DPORT)
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specify
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($A *> P) = 3806;
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($B *> P) = 2690;
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($C *> P) = 1325;
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($D *> P) = 3717;
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($PCIN *> P) = 1107;
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($P *> P) = 0;
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($A *> PCOUT) = 3954;
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($B *> PCOUT) = 2838;
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($C *> PCOUT) = 1474;
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($D *> PCOUT) = 3700;
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($PCIN *> PCOUT) = 1255;
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($PCOUT *> PCOUT) = 0;
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endspecify
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endmodule
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(* abc9_box *) `ABC9_DSP48E1($__ABC9_DSP48E1)
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specify
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($A *> P) = 1523;
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($B *> P) = 1509;
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($C *> P) = 1325;
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($PCIN *> P) = 1107;
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($P *> P) = 0;
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($A *> PCOUT) = 1671;
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($B *> PCOUT) = 1658;
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($C *> PCOUT) = 1474;
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($PCIN *> PCOUT) = 1255;
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($PCOUT *> PCOUT) = 0;
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endspecify
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endmodule
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`undef ABC9_DSP48E1
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@ -36,8 +36,7 @@ module $__ABC9_RAM7(input A, input [6:0] S, output Y);
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assign Y = A;
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endmodule
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(* techmap_celltype = "$__ABC9_DSP48E1_MULT $__ABC9_DSP48E1_MULT_DPORT $__ABC9_DSP48E1" *)
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module $ABC9_DSP48E1(
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module $__ABC9_DSP48E1(
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input [29:0] $A,
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input [17:0] $B,
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input [47:0] $C,
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@ -48,5 +47,14 @@ module $ABC9_DSP48E1(
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output [47:0] P,
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output [47:0] PCOUT
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);
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parameter integer AREG = 1;
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parameter integer BREG = 1;
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parameter integer CREG = 1;
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parameter integer DREG = 1;
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parameter integer MREG = 1;
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parameter integer PREG = 1;
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parameter USE_DPORT = "FALSE";
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parameter USE_MULT = "MULTIPLY";
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assign P = $P, PCOUT = $PCOUT;
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endmodule
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