nextpnr/ecp5/synth/simple_map.v
David Shah 98cdb6082d ecp5: Bitstream progress
Signed-off-by: David Shah <davey1576@gmail.com>
2018-07-11 10:42:09 +02:00

69 lines
1.1 KiB
Verilog

module \$_DFF_P_ (input D, C, output Q);
TRELLIS_SLICE #(
.MODE("LOGIC"),
.CLKMUX("CLK"),
.CEMUX("1"),
.REG0_SD("0"),
.REG0_REGSET("RESET"),
.SRMODE("LSR_OVER_CE"),
.GSR("DISABLED")
) _TECHMAP_REPLACE_ (
.CLK(C),
.M0(D),
.Q0(Q)
);
endmodule
module \$lut (A, Y);
parameter WIDTH = 0;
parameter LUT = 0;
input [WIDTH-1:0] A;
output Y;
generate
if (WIDTH == 1) begin
TRELLIS_SLICE #(
.MODE("LOGIC"),
.LUT0_INITVAL({8{LUT[1:0]}})
) _TECHMAP_REPLACE_ (
.A0(A[0]),
.F0(Y)
);
end
if (WIDTH == 2) begin
TRELLIS_SLICE #(
.MODE("LOGIC"),
.LUT0_INITVAL({4{LUT[3:0]}})
) _TECHMAP_REPLACE_ (
.A0(A[0]),
.B0(A[1]),
.F0(Y)
);
end
if (WIDTH == 3) begin
TRELLIS_SLICE #(
.MODE("LOGIC"),
.LUT0_INITVAL({2{LUT[7:0]}})
) _TECHMAP_REPLACE_ (
.A0(A[0]),
.B0(A[1]),
.C0(A[2]),
.F0(Y)
);
end
if (WIDTH == 4) begin
TRELLIS_SLICE #(
.MODE("LOGIC"),
.LUT0_INITVAL(LUT)
) _TECHMAP_REPLACE_ (
.A0(A[0]),
.B0(A[1]),
.C0(A[2]),
.D0(A[3]),
.F0(Y)
);
end
endgenerate
endmodule