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nexus: DSP inference support

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Signed-off-by: David Shah <dave@ds0.me>
This commit is contained in:
David Shah 2020-11-20 08:26:58 +00:00
parent 5b35d953f7
commit 9f241c9a42
4 changed files with 151 additions and 13 deletions
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79
techlibs/nexus/dsp_map.v Normal file
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module \$__NX_MUL36X36 (input [35:0] A, input [35:0] B, output [71:0] Y);
parameter A_WIDTH = 36;
parameter B_WIDTH = 36;
parameter Y_WIDTH = 72;
parameter A_SIGNED = 0;
parameter B_SIGNED = 0;
MULT36X36 #(
.REGINPUTA("BYPASS"),
.REGINPUTB("BYPASS"),
.REGOUTPUT("BYPASS")
) _TECHMAP_REPLACE_ (
.A(A), .B(B),
.SIGNEDA(A_SIGNED ? 1'b1 : 1'b0),
.SIGNEDB(B_SIGNED ? 1'b1 : 1'b0),
.Z(Y)
);
endmodule
module \$__NX_MUL36X18 (input [35:0] A, input [17:0] B, output [53:0] Y);
parameter A_WIDTH = 36;
parameter B_WIDTH = 18;
parameter Y_WIDTH = 54;
parameter A_SIGNED = 0;
parameter B_SIGNED = 0;
MULT18X36 #(
.REGINPUTA("BYPASS"),
.REGINPUTB("BYPASS"),
.REGOUTPUT("BYPASS")
) _TECHMAP_REPLACE_ (
.A(B), .B(A),
.SIGNEDA(B_SIGNED ? 1'b1 : 1'b0),
.SIGNEDB(A_SIGNED ? 1'b1 : 1'b0),
.Z(Y)
);
endmodule
module \$__NX_MUL18X18 (input [17:0] A, input [17:0] B, output [35:0] Y);
parameter A_WIDTH = 18;
parameter B_WIDTH = 18;
parameter Y_WIDTH = 36;
parameter A_SIGNED = 0;
parameter B_SIGNED = 0;
MULT18X18 #(
.REGINPUTA("BYPASS"),
.REGINPUTB("BYPASS"),
.REGOUTPUT("BYPASS")
) _TECHMAP_REPLACE_ (
.A(A), .B(B),
.SIGNEDA(A_SIGNED ? 1'b1 : 1'b0),
.SIGNEDB(B_SIGNED ? 1'b1 : 1'b0),
.Z(Y)
);
endmodule
module \$__NX_MUL9X9 (input [8:0] A, input [8:0] B, output [17:0] Y);
parameter A_WIDTH = 9;
parameter B_WIDTH = 9;
parameter Y_WIDTH = 18;
parameter A_SIGNED = 0;
parameter B_SIGNED = 0;
MULT9X9 #(
.REGINPUTA("BYPASS"),
.REGINPUTB("BYPASS"),
.REGOUTPUT("BYPASS")
) _TECHMAP_REPLACE_ (
.A(A), .B(B),
.SIGNEDA(A_SIGNED ? 1'b1 : 1'b0),
.SIGNEDB(B_SIGNED ? 1'b1 : 1'b0),
.Z(Y)
);
endmodule