1 files changed, 14 insertions, 9 deletions
diff --git a/techlibs/ice40/cells_map.v b/techlibs/ice40/cells_map.v
index 0c10c9ac4..b4b831165 100644
--- a/techlibs/ice40/cells_map.v
+++ b/techlibs/ice40/cells_map.v
@@ -62,21 +62,26 @@ module \$lut (A, Y);
 endmodule
 `endif
 
-`ifndef NO_ADDER
-module \$__ICE40_CARRY_WRAPPER (output CO, O, input A, B, CI, I0, I3);
-  parameter LUT = 0;
+`ifdef _ABC
+module \$__ICE40_FULL_ADDER (output CO, O, input A, B, CI);
   SB_CARRY carry (
     .I0(A),
     .I1(B),
     .CI(CI),
     .CO(CO)
   );
-  \$lut #(
-    .WIDTH(4),
-    .LUT(LUT)
-  ) lut (
-    .A({I3,B,A,I0}),
-    .Y(O)
+  SB_LUT4 #(
+    //         I0: 1010 1010 1010 1010
+    //         I1: 1100 1100 1100 1100
+    //         I2: 1111 0000 1111 0000
+    //         I3: 1111 1111 0000 0000
+    .LUT_INIT(16'b 0110_1001_1001_0110)
+  ) adder (
+    .I0(1'b0),
+    .I1(A),
+    .I2(B),
+    .I3(CI),
+    .O(O)
   );
 endmodule
 `endif