Imported yosys 0.7

1 files changed, 31 insertions, 0 deletions

diff --git a/techlibs/gowin/cells_map.v b/techlibs/gowin/cells_map.v
new file mode 100644
index 00000000..e1f85eff
--- /dev/null
+++ b/techlibs/gowin/cells_map.v
@@ -0,0 +1,31 @@
+module  \$_DFF_N_ (input D, C, output Q); DFFN _TECHMAP_REPLACE_ (.D(D), .Q(Q), .CLK(C)); endmodule
+module  \$_DFF_P_ (input D, C, output Q); DFF  _TECHMAP_REPLACE_ (.D(D), .Q(Q), .CLK(C)); endmodule
+
+module \$lut (A, Y);
+  parameter WIDTH = 0;
+  parameter LUT = 0;
+
+  input [WIDTH-1:0] A;
+  output Y;
+
+  generate
+    if (WIDTH == 1) begin
+      LUT1 #(.INIT(LUT)) _TECHMAP_REPLACE_ (.F(Y),
+        .I0(A[0]));
+    end else
+    if (WIDTH == 2) begin
+      LUT2 #(.INIT(LUT)) _TECHMAP_REPLACE_ (.F(Y),
+        .I0(A[0]), .I1(A[1]));
+    end else
+    if (WIDTH == 3) begin
+      LUT3 #(.INIT(LUT)) _TECHMAP_REPLACE_ (.F(Y),
+        .I0(A[0]), .I1(A[1]), .I2(A[2]));
+    end else
+    if (WIDTH == 4) begin
+      LUT4 #(.INIT(LUT)) _TECHMAP_REPLACE_ (.F(Y),
+        .I0(A[0]), .I1(A[1]), .I2(A[2]), .I3(A[3]));
+    end else begin
+      wire _TECHMAP_FAIL_ = 1;
+    end
+  endgenerate
+endmodule