aboutsummaryrefslogtreecommitdiffstats
path: root/techlibs/altera_intel/max10
diff options
context:
space:
mode:
Diffstat (limited to 'techlibs/altera_intel/max10')
-rw-r--r--techlibs/altera_intel/max10/cells_arith_max10.v62
-rw-r--r--techlibs/altera_intel/max10/cells_comb_max10.v128
-rw-r--r--techlibs/altera_intel/max10/cells_map_max10.v61
3 files changed, 251 insertions, 0 deletions
diff --git a/techlibs/altera_intel/max10/cells_arith_max10.v b/techlibs/altera_intel/max10/cells_arith_max10.v
new file mode 100644
index 000000000..497f44d99
--- /dev/null
+++ b/techlibs/altera_intel/max10/cells_arith_max10.v
@@ -0,0 +1,62 @@
+/*
+ * yosys -- Yosys Open SYnthesis Suite
+ *
+ * Copyright (C) 2012 Clifford Wolf <clifford@clifford.at>
+ *
+ * Permission to use, copy, modify, and/or distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+ * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ *
+ */
+
+// NOTE: This is still WIP.
+(* techmap_celltype = "$alu" *)
+module _80_altera_max10_alu (A, B, CI, BI, X, Y, CO);
+ parameter A_SIGNED = 0;
+ parameter B_SIGNED = 0;
+ parameter A_WIDTH = 1;
+ parameter B_WIDTH = 1;
+ parameter Y_WIDTH = 1;
+ parameter LUT = 0;
+
+ input [A_WIDTH-1:0] A;
+ input [B_WIDTH-1:0] B;
+ output [Y_WIDTH-1:0] X, Y;
+
+ input CI, BI;
+ output [Y_WIDTH-1:0] CO;
+
+ wire _TECHMAP_FAIL_ = Y_WIDTH <= 2;
+
+ wire tempcombout;
+ wire [Y_WIDTH-1:0] A_buf, B_buf;
+ \$pos #(.A_SIGNED(A_SIGNED), .A_WIDTH(A_WIDTH), .Y_WIDTH(Y_WIDTH)) A_conv (.A(A), .Y(A_buf));
+ \$pos #(.A_SIGNED(B_SIGNED), .A_WIDTH(B_WIDTH), .Y_WIDTH(Y_WIDTH)) B_conv (.A(B), .Y(B_buf));
+
+ wire [Y_WIDTH-1:0] AA = A_buf;
+ wire [Y_WIDTH-1:0] BB = BI ? ~B_buf : B_buf;
+ wire [Y_WIDTH-1:0] C = {CO, CI};
+
+ genvar i;
+ generate for (i = 0; i < Y_WIDTH; i = i + 1) begin:slice
+ fiftyfivenm_lcell_comb #(.lut_mask(LUT), .sum_lutc_input("cin")) _TECHMAP_REPLACE_
+ ( .dataa(AA),
+ .datab(BB),
+ .datac(C),
+ .datad(1'b0),
+ .cin(C[i]),
+ .cout(CO[i]),
+ .combout(Y[i]) );
+ end: slice
+ endgenerate
+ assign X = C;
+endmodule
+
diff --git a/techlibs/altera_intel/max10/cells_comb_max10.v b/techlibs/altera_intel/max10/cells_comb_max10.v
new file mode 100644
index 000000000..cbf0954aa
--- /dev/null
+++ b/techlibs/altera_intel/max10/cells_comb_max10.v
@@ -0,0 +1,128 @@
+/*
+ * yosys -- Yosys Open SYnthesis Suite
+ *
+ * Copyright (C) 2012 Clifford Wolf <clifford@clifford.at>
+ *
+ * Permission to use, copy, modify, and/or distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+ * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ *
+ */
+
+module VCC (output V);
+ assign V = 1'b1;
+endmodule // VCC
+
+module GND (output G);
+ assign G = 1'b0;
+endmodule // GND
+
+/* Altera MAX10 devices Input Buffer Primitive */
+module fiftyfivenm_io_ibuf (output o, input i, input ibar);
+ assign ibar = ibar;
+ assign o = i;
+endmodule // fiftyfivenm_io_ibuf
+
+/* Altera MAX10 devices Output Buffer Primitive */
+module fiftyfivenm_io_obuf (output o, input i, input oe);
+ assign o = i;
+ assign oe = oe;
+endmodule // fiftyfivenm_io_obuf
+
+/* Altera MAX10 4-input non-fracturable LUT Primitive */
+module fiftyfivenm_lcell_comb (output combout, cout,
+ input dataa, datab, datac, datad, cin);
+
+/* Internal parameters which define the behaviour
+ of the LUT primitive.
+ lut_mask define the lut function, can be expressed in 16-digit bin or hex.
+ sum_lutc_input define the type of LUT (combinational | arithmetic).
+ dont_touch for retiming || carry options.
+ lpm_type for WYSIWYG */
+
+parameter lut_mask = 16'hFFFF;
+parameter dont_touch = "off";
+parameter lpm_type = "fiftyfivenm_lcell_comb";
+parameter sum_lutc_input = "datac";
+
+reg [1:0] lut_type;
+reg cout_rt;
+reg combout_rt;
+wire dataa_w;
+wire datab_w;
+wire datac_w;
+wire datad_w;
+wire cin_w;
+
+assign dataa_w = dataa;
+assign datab_w = datab;
+assign datac_w = datac;
+assign datad_w = datad;
+
+function lut_data;
+input [15:0] mask;
+input dataa, datab, datac, datad;
+reg [7:0] s3;
+reg [3:0] s2;
+reg [1:0] s1;
+ begin
+ s3 = datad ? mask[15:8] : mask[7:0];
+ s2 = datac ? s3[7:4] : s3[3:0];
+ s1 = datab ? s2[3:2] : s2[1:0];
+ lut_data = dataa ? s1[1] : s1[0];
+ end
+
+endfunction
+
+initial begin
+ if (sum_lutc_input == "datac") lut_type = 0;
+ else
+ if (sum_lutc_input == "cin") lut_type = 1;
+ else begin
+ $error("Error in sum_lutc_input. Parameter %s is not a valid value.\n", sum_lutc_input);
+ $finish();
+ end
+end
+
+always @(dataa_w or datab_w or datac_w or datad_w or cin_w) begin
+ if (lut_type == 0) begin // logic function
+ combout_rt = lut_data(lut_mask, dataa_w, datab_w,
+ datac_w, datad_w);
+ end
+ else if (lut_type == 1) begin // arithmetic function
+ combout_rt = lut_data(lut_mask, dataa_w, datab_w,
+ cin_w, datad_w);
+ end
+ cout_rt = lut_data(lut_mask, dataa_w, datab_w, cin_w, 'b0);
+end
+
+assign combout = combout_rt & 1'b1;
+assign cout = cout_rt & 1'b1;
+
+endmodule // fiftyfivenm_lcell_comb
+
+/* Altera MAX10 D Flip-Flop Primitive */
+// TODO: Implement advanced simulation functions
+module dffeas ( output q,
+ input d, clk, clrn, prn, ena,
+ input asdata, aload, sclr, sload );
+
+parameter power_up="dontcare";
+parameter is_wysiwyg="false";
+ reg q;
+
+ always @(posedge clk)
+ q <= d;
+
+endmodule
+
+
+
diff --git a/techlibs/altera_intel/max10/cells_map_max10.v b/techlibs/altera_intel/max10/cells_map_max10.v
new file mode 100644
index 000000000..9ae6871fa
--- /dev/null
+++ b/techlibs/altera_intel/max10/cells_map_max10.v
@@ -0,0 +1,61 @@
+/*
+ * yosys -- Yosys Open SYnthesis Suite
+ *
+ * Copyright (C) 2012 Clifford Wolf <clifford@clifford.at>
+ *
+ * Permission to use, copy, modify, and/or distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+ * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ *
+ */
+
+// Flip-flop D
+module \$_DFF_P_ (input D, input C, output Q);
+ parameter WYSIWYG="TRUE";
+ dffeas #(.is_wysiwyg(WYSIWYG)) _TECHMAP_REPLACE_ (.d(D), .q(Q), .clk(C), .clrn(1'b1), .prn(1'b1), .ena(1'b1), .asdata(1'b0), .aload(1'b0), .sclr(1'b0), .sload(1'b0));
+endmodule //
+
+// Input buffer map
+module \$__inpad (input I, output O);
+ fiftyfivenm_io_ibuf _TECHMAP_REPLACE_ (.o(O), .i(I), .ibar(1'b0));
+endmodule
+
+// Output buffer map
+module \$__outpad (input I, output O);
+ fiftyfivenm_io_obuf _TECHMAP_REPLACE_ (.o(O), .i(I), .oe(1'b1));
+endmodule
+
+// LUT Map
+/* 0 -> datac
+ 1 -> cin */
+module \$lut (A, Y);
+ parameter WIDTH = 0;
+ parameter LUT = 0;
+ input [WIDTH-1:0] A;
+ output Y;
+ generate
+ if (WIDTH == 1) begin
+ assign Y = ~A[0]; // Not need to spend 1 logic cell for such an easy function
+ end else
+ if (WIDTH == 2) begin
+ fiftyfivenm_lcell_comb #(.lut_mask({4{LUT}}), .sum_lutc_input("datac")) _TECHMAP_REPLACE_ (.combout(Y), .dataa(A[0]), .datab(A[1]), .datac(1'b1),.datad(1'b1));
+ end else
+ if(WIDTH == 3) begin
+ fiftyfivenm_lcell_comb #(.lut_mask({2{LUT}}), .sum_lutc_input("datac")) _TECHMAP_REPLACE_ (.combout(Y), .dataa(A[0]), .datab(A[1]), .datac(A[2]),.datad(1'b1));
+ end else
+ if(WIDTH == 4) begin
+ fiftyfivenm_lcell_comb #(.lut_mask(LUT), .sum_lutc_input("datac")) _TECHMAP_REPLACE_ (.combout(Y), .dataa(A[0]), .datab(A[1]), .datac(A[2]),.datad(A[3]));
+ end else
+ wire _TECHMAP_FAIL_ = 1;
+ endgenerate
+endmodule //
+
+