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xilinx_dsp: Initial DSP48A/DSP48A1 support.

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This commit is contained in:
Marcin Kościelnicki 2019-12-22 20:43:39 +01:00
parent aa1adb0f1e
commit 666c6128a9
10 changed files with 921 additions and 14 deletions
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5
techlibs/xilinx/synth_xilinx.cc
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@ -387,7 +387,10 @@ struct SynthXilinxPass : public ScriptPass
run("opt_expr -fine");
run("wreduce");
run("select -clear");
run("xilinx_dsp");
if (help_mode)
run("xilinx_dsp -family <family>");
else
run("xilinx_dsp -family " + family);
run("chtype -set $mul t:$__soft_mul");
}
}

2
techlibs/xilinx/xc3sda_dsp_map.v
View file

@ -27,7 +27,7 @@ module \$__MUL18X18 (input [17:0] A, input [17:0] B, output [35:0] Y);
.D(18'b0),
.P(P_48),
.OPMODE(8'b0000010)
.OPMODE(8'b0000001)
);
assign Y = P_48;
endmodule

2
techlibs/xilinx/xc6s_dsp_map.v
View file

@ -27,7 +27,7 @@ module \$__MUL18X18 (input [17:0] A, input [17:0] B, output [35:0] Y);
.D(18'b0),
.P(P_48),
.OPMODE(8'b0000010)
.OPMODE(8'b0000001)
);
assign Y = P_48;
endmodule