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gowin: synth_gowin: Add MULT inference for GW1N and GW2A

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Maxim Kudinov 2026-01-25 22:10:08 +03:00
parent f5ea73eb97
commit 808ec8c04b
3 changed files with 114 additions and 1 deletions
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70
techlibs/gowin/dsp_map.v Normal file
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module \$__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 __TECHMAP_REPLACE__ (
.CLK(1'b0),
.CE(1'b0),
.RESET(1'b0),
.A(A),
.SIA({A_WIDTH{1'b0}}),
.ASEL(1'b0),
.ASIGN(A_SIGNED ? 1'b1 : 1'b0),
.B(B),
.SIB({B_WIDTH{1'b0}}),
.BSEL(1'b0),
.BSIGN(B_SIGNED ? 1'b1 : 1'b0),
.DOUT(Y)
);
endmodule
module \$__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 __TECHMAP_REPLACE__ (
.CLK(1'b0),
.CE(1'b0),
.RESET(1'b0),
.A(A),
.SIA({A_WIDTH{1'b0}}),
.ASEL(1'b0),
.ASIGN(A_SIGNED ? 1'b1 : 1'b0),
.B(B),
.SIB({B_WIDTH{1'b0}}),
.BSEL(1'b0),
.BSIGN(B_SIGNED ? 1'b1 : 1'b0),
.DOUT(Y)
);
endmodule
module \$__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 __TECHMAP_REPLACE__ (
.CLK(1'b0),
.RESET(1'b0),
.CE(1'b0),
.A(A),
.ASIGN(A_SIGNED ? 1'b1 : 1'b0),
.B(B),
.BSIGN(B_SIGNED ? 1'b1 : 1'b0),
.DOUT(Y)
);
endmodule