3 files changed, 21 insertions, 0 deletions
diff --git a/tests/arch/fabulous/custom_map.v b/tests/arch/fabulous/custom_map.v
new file mode 100644
index 000000000..1538e837b
--- /dev/null
+++ b/tests/arch/fabulous/custom_map.v
@@ -0,0 +1,3 @@
+module AND(input [7:0] A, B, output [7:0] Y);
+	ALU #(.MODE("AND")) _TECHMAP_REPLACE_ (.A(A), .B(B), .Y(Y));
+endmodule
diff --git a/tests/arch/fabulous/custom_prims.v b/tests/arch/fabulous/custom_prims.v
new file mode 100644
index 000000000..4989188e2
--- /dev/null
+++ b/tests/arch/fabulous/custom_prims.v
@@ -0,0 +1,8 @@
+(* blackbox *)
+module AND(input [7:0] A, B, output [7:0] Y);
+endmodule
+
+(* blackbox *)
+module ALU(input [7:0] A, B, output [7:0] Y);
+parameter MODE = "";
+endmodule
diff --git a/tests/arch/fabulous/customisation.ys b/tests/arch/fabulous/customisation.ys
new file mode 100644
index 000000000..0e78d2e56
--- /dev/null
+++ b/tests/arch/fabulous/customisation.ys
@@ -0,0 +1,10 @@
+read_verilog <<EOT
+module prim_test(input [7:0] a, b, output [7:0] q);
+	AND and_i (.A(a), .B(b), .Y(q));
+endmodule
+EOT
+
+# Test adding custom primitives and techmap rules
+synth_fabulous -top prim_test -extra-plib custom_prims.v -extra-map custom_map.v
+cd prim_test
+select -assert-count 1 t:ALU