1 files changed, 85 insertions, 0 deletions
diff --git a/tests/xsthammer/generate.cc b/tests/xsthammer/generate.cc
new file mode 100644
index 000000000..2e50398ed
--- /dev/null
+++ b/tests/xsthammer/generate.cc
@@ -0,0 +1,85 @@
+
+#include <sys/stat.h>
+#include <sys/types.h>
+#include <stdio.h>
+#include <string>
+
+const char *arg_types[][2] = {
+	{ "{dir} [3:0] {name}", "{name}" },
+	{ "{dir} [4:0] {name}", "{name}" },
+	{ "{dir} [5:0] {name}", "{name}" },
+	{ "{dir} signed [3:0] {name}", "{name}" },
+	{ "{dir} signed [4:0] {name}", "{name}" },
+	{ "{dir} signed [5:0] {name}", "{name}" }
+};
+
+const char *ops[] = {
+	"+",
+	"-",
+	"*",
+	"&&",
+	"||",
+	"&",
+	"|",
+	"^",
+	"<<",
+	">>",
+	"<<<",
+	">>>",
+};
+
+void strsubst(std::string &str, const std::string &match, const std::string &replace)
+{
+	size_t pos;
+	while ((pos = str.find(match)) != std::string::npos)
+		str.replace(pos, match.size(), replace);
+}
+
+int main()
+{
+	mkdir("rtl", 0777);
+	for (int ai = 0; ai < sizeof(arg_types)/sizeof(arg_types[0]); ai++)
+	for (int bi = 0; bi < sizeof(arg_types)/sizeof(arg_types[0]); bi++)
+	for (int yi = 0; yi < sizeof(arg_types)/sizeof(arg_types[0]); yi++)
+	for (int oi = 0; oi < sizeof(ops)/sizeof(ops[0]); oi++)
+	{
+		std::string a_decl = arg_types[ai][0];
+		strsubst(a_decl, "{dir}", "input");
+		strsubst(a_decl, "{name}", "a");
+
+		std::string b_decl = arg_types[bi][0];
+		strsubst(b_decl, "{dir}", "input");
+		strsubst(b_decl, "{name}", "b");
+
+		std::string y_decl = arg_types[yi][0];
+		strsubst(y_decl, "{dir}", "output");
+		strsubst(y_decl, "{name}", "y");
+
+		std::string a_ref = arg_types[ai][1];
+		strsubst(a_ref, "{dir}", "input");
+		strsubst(a_ref, "{name}", "a");
+
+		std::string b_ref = arg_types[bi][1];
+		strsubst(b_ref, "{dir}", "input");
+		strsubst(b_ref, "{name}", "b");
+
+		std::string y_ref = arg_types[yi][1];
+		strsubst(y_ref, "{dir}", "output");
+		strsubst(y_ref, "{name}", "y");
+
+		char buffer[1024];
+		snprintf(buffer, 1024, "rtl/binary_ops_%02d%02d%02d%02d.v", ai, bi, yi, oi);
+
+		FILE *f = fopen(buffer, "w");
+		fprintf(f, "module binary_ops_%02d%02d%02d%02d(a, b, y);\n", ai, bi, yi, oi);
+		fprintf(f, "%s;\n", a_decl.c_str());
+		fprintf(f, "%s;\n", b_decl.c_str());
+		fprintf(f, "%s;\n", y_decl.c_str());
+		fprintf(f, "assign %s = %s %s %s;\n", y_ref.c_str(),
+				a_ref.c_str(), ops[oi], b_ref.c_str());
+		fprintf(f, "endmodule\n");
+		fclose(f);
+	}
+	return 0;
+}
+