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Diffstat (limited to 'techlibs/machxo2/cells_map.v')
| -rw-r--r-- | techlibs/machxo2/cells_map.v | 34 |
1 files changed, 34 insertions, 0 deletions
diff --git a/techlibs/machxo2/cells_map.v b/techlibs/machxo2/cells_map.v new file mode 100644 index 000000000..9c370f246 --- /dev/null +++ b/techlibs/machxo2/cells_map.v @@ -0,0 +1,34 @@ +module \$lut (A, Y); + parameter WIDTH = 0; + parameter LUT = 0; + input [WIDTH-1:0] A; + output Y; + + localparam rep = 1<<(4-WIDTH); + wire [3:0] I; + + generate + if(WIDTH == 1) begin + assign I = {1'b0, 1'b0, 1'b0, A[0]}; + end else if(WIDTH == 2) begin + assign I = {1'b0, 1'b0, A[1], A[0]}; + end else if(WIDTH == 3) begin + assign I = {1'b0, A[2], A[1], A[0]}; + end else if(WIDTH == 4) begin + assign I = {A[3], A[2], A[1], A[0]}; + end else begin + wire _TECHMAP_FAIL_ = 1; + end + endgenerate + + LUT4 #(.INIT({rep{LUT}})) _TECHMAP_REPLACE_ (.A(I[0]), .B(I[1]), .C(I[2]), .D(I[3]), .Z(Y)); +endmodule + +// DFFs +module \$_DFF_P_ (input D, C, output Q); FACADE_FF #(.CEMUX("1"), .CLKMUX("CLK"), .LSRMUX("LSR"), .REGSET("RESET")) _TECHMAP_REPLACE_ (.CLK(C), .LSR(1'b0), .DI(D), .Q(Q)); endmodule + +// IO- "$__" cells for the iopadmap pass. +module \$__FACADE_OUTPAD (input I, output O); FACADE_IO #(.DIR("OUTPUT")) _TECHMAP_REPLACE_ (.PAD(O), .I(I), .T(1'b0)); endmodule +module \$__FACADE_INPAD (input I, output O); FACADE_IO #(.DIR("INPUT")) _TECHMAP_REPLACE_ (.PAD(I), .O(O)); endmodule +module \$__FACADE_TOUTPAD (input I, T, output O); FACADE_IO #(.DIR("OUTPUT")) _TECHMAP_REPLACE_ (.PAD(O), .I(I), .T(T)); endmodule +module \$__FACADE_TINOUTPAD (input I, T, output O, inout B); FACADE_IO #(.DIR("BIDIR")) _TECHMAP_REPLACE_ (.PAD(B), .I(I), .O(O), .T(T)); endmodule |