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ecp5: Adding basic synth_ecp5 based on synth_ice40

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Signed-off-by: David Shah <davey1576@gmail.com>
This commit is contained in:
David Shah 2018-07-13 14:52:25 +02:00
parent eb8f3f7dc4
commit c2d7be140a
3 changed files with 345 additions and 7 deletions
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14
techlibs/ecp5/cells_map.v
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@ -59,7 +59,7 @@ module \$lut (A, Y);
.A(A[0]), .B(A[1]), .C(A[2]), .D(A[3]));
LUT4 #(.INIT(LUT[31:16])) lut1 (.Z(f1),
.A(A[0]), .B(A[1]), .C(A[2]), .D(A[3]));
PFUMX mux5(.ALUT(f1), .BLUT(f0), .SD(A[4]), .Z(Y));
PFUMX mux5(.ALUT(f1), .BLUT(f0), .C0(A[4]), .Z(Y));
end else
if (WIDTH == 6) begin
wire f0, f1, f2, f3, g0, g1;
@ -73,8 +73,8 @@ module \$lut (A, Y);
LUT4 #(.INIT(LUT[63:48])) lut3 (.Z(f3),
.A(A[0]), .B(A[1]), .C(A[2]), .D(A[3]));
PFUMX mux50(.ALUT(f1), .BLUT(f0), .SD(A[4]), .Z(g0));
PFUMX mux51(.ALUT(f3), .BLUT(f2), .SD(A[4]), .Z(g1));
PFUMX mux50(.ALUT(f1), .BLUT(f0), .C0(A[4]), .Z(g0));
PFUMX mux51(.ALUT(f3), .BLUT(f2), .C0(A[4]), .Z(g1));
L6MUX21 mux6 (.D0(g0), .D1(g1), .SD(A[5]), .Z(Y));
end else
if (WIDTH == 7) begin
@ -99,10 +99,10 @@ module \$lut (A, Y);
LUT4 #(.INIT(LUT[127:112])) lut7 (.Z(f7),
.A(A[0]), .B(A[1]), .C(A[2]), .D(A[3]));
PFUMX mux50(.ALUT(f1), .BLUT(f0), .SD(A[4]), .Z(g0));
PFUMX mux51(.ALUT(f3), .BLUT(f2), .SD(A[4]), .Z(g1));
PFUMX mux52(.ALUT(f5), .BLUT(f4), .SD(A[4]), .Z(g2));
PFUMX mux53(.ALUT(f7), .BLUT(f6), .SD(A[4]), .Z(g3));
PFUMX mux50(.ALUT(f1), .BLUT(f0), .C0(A[4]), .Z(g0));
PFUMX mux51(.ALUT(f3), .BLUT(f2), .C0(A[4]), .Z(g1));
PFUMX mux52(.ALUT(f5), .BLUT(f4), .C0(A[4]), .Z(g2));
PFUMX mux53(.ALUT(f7), .BLUT(f6), .C0(A[4]), .Z(g3));
L6MUX21 mux60 (.D0(g0), .D1(g1), .SD(A[5]), .Z(h0));
L6MUX21 mux61 (.D0(g2), .D1(g3), .SD(A[5]), .Z(h1));
L6MUX21 mux7 (.D0(h0), .D1(h1), .SD(A[6]), .Z(Y));