diff --git a/tools/segmatch.cc b/tools/segmatch.cc
index d62cc27b0..f3752d971 100644
--- a/tools/segmatch.cc
+++ b/tools/segmatch.cc
@@ -223,9 +223,9 @@ void read_input(std::istream& f, std::string filename) {
 		abort();
 	}
 
-	// printf("Number of segments: %d\n", int(segdata.size()));
-	// printf("Number of bits: %d\n", num_bits);
-	// printf("Number of tags: %d\n", num_tags);
+	 printf("Number of segments: %d\n", int(segdata.size()));
+	 printf("Number of bits: %d\n", num_bits);
+	 printf("Number of tags: %d\n", num_tags);
 
 	for (auto& segdat : segdata) {
 		segdata_bits(segdat.second).resize(num_bits);
@@ -279,26 +279,48 @@ int main(int argc, char** argv) {
 
 	std::vector<std::string> out_lines;
 
-	for (int tag_idx = 0; tag_idx < num_tags; tag_idx++) {
+	int searched_tag = tag_ids.at("IOB18.IOB_Y0.SSTL135.IN");
+	for (int tag_idx = searched_tag; tag_idx <= searched_tag ; tag_idx++) {
 		bool_vec mask(num_bits, true);
 		int count1 = 0, count0 = 0;
+		std::cout << tag_ids_r.at(tag_idx) << ": " << tag_idx;
 
 		for (auto& segdat : segdata) {
+			std::cout << "Segment: " << segdat.first << std::endl;
+
 			auto& sd = segdat.second;
 			bool tag1 = segdata_tags1(sd).get(tag_idx);
 			bool tag0 = segdata_tags0(sd).get(tag_idx);
-
 			assert(!tag1 || !tag0);
+			for (int bit_idx = 0; bit_idx < num_bits; bit_idx++) {
+			    if (tag1 && segdata_bits(sd).get(bit_idx)) {
+				std::cout << bit_ids_r.at(bit_idx) << std::endl;
+			    }
+			}
 
 			if (tag1) {
 				count1++;
 				mask.apply_and(segdata_bits(sd));
+				std::cout << "Resulting mask(tag1): ";
+				for (int bit_idx = 0; bit_idx < num_bits; bit_idx++) {
+				    if (tag1 && mask.get(bit_idx)) {
+					std::cout <<bit_ids_r.at(bit_idx)  << " ";
+				    }
+				}
+				std::cout << std::endl;
 				continue;
 			}
 
 			if (tag0) {
 				count0++;
 				mask.apply_andc(segdata_bits(sd));
+				std::cout << "Resulting mask(tag0): ";
+				for (int bit_idx = 0; bit_idx < num_bits; bit_idx++) {
+				    if (tag1 && mask.get(bit_idx)) {
+					std::cout <<bit_ids_r.at(bit_idx)  << " ";
+				    }
+				}
+				std::cout << std::endl;
 				continue;
 			}
 		}