diff --git a/src/main.cpp b/src/main.cpp
index 92bfabb..bdbaf25 100644
--- a/src/main.cpp
+++ b/src/main.cpp
@@ -9,11 +9,17 @@
 
 using namespace mtl;
 using namespace fractal;
+namespace mlog = mtl::log;
+
+GBA_EWRAM_DATA ruleset_t rules;
+GBA_EWRAM_DATA generator_t gen;
+GBA_EWRAM_DATA etl::vector<marker_t, 100> output;
 
 int main(void) {
 	REG_DISPCNT = DCNT_MODE3 | DCNT_BG2;
 
-	log::debug << "Hello world!" << mtl::endl;
+	mlog::debug << "Hello world!" << mtl::flush;
+
 	constexpr float cos_PI_2 = std::cos(M_PI_2);
 	constexpr float cos_PI_4 = std::cos(M_PI_4);
 	constexpr float sin_PI_2 = std::sin(M_PI_2);
@@ -24,8 +30,6 @@ int main(void) {
 	fixed sin_PI_2_fx = sin_PI_2;
 	fixed sin_PI_4_fx = sin_PI_4;
 
-	ruleset_t rules;
-
 	try {
 		fixed branch_angle = M_PI_4;
 
@@ -41,7 +45,7 @@ int main(void) {
 		token_id_t petal = rules.add_token(token_type_e::empty);
 		token_id_t mark = rules.add_token(token_type_e::empty, 0, 0, 1);
 
-		log::info << "Added tokens" << endl;
+		mlog::info << "Added tokens" << endl;
 
 		uint32_t axiom_factor = 4;
 
@@ -54,29 +58,40 @@ int main(void) {
 		etl::vector petal_chr{ mark, walk_petal_length, mark, rotate_petal, walk_petal_side, mark };
 		group_id_t petal_grp = rules.add_group_characteristic(petal_chr);
 
-		log::info << "Added group characteristics" << endl;
+		mlog::info << "Added group characteristics" << endl;
 
 		rules.add_branch_rule(branch, branch_grp);
 		rules.add_branch_rule(petal, petal_grp);
 
-		log::info << "Added rules" << endl;
-		log::info << "Finished configuring ruleset" << endl;
+		mlog::info << "Added rules" << endl;
+		mlog::info << "Finished configuring ruleset" << endl;
 	} catch(const mtl::exception&) {
-		log::info << "Failed to configure ruleset, caught exception" << endl;
+		mlog::info << "Failed to configure ruleset, caught exception" << endl;
 		return 0;
 	}
 
-	generator_t gen(rules);
-	etl::vector<marker_t, 100> output;
+	size_t gen_num = 0;
 
-	while (gen.step_generation(output)) {
-		log::debug << "Stepped generation" << gen.generation_num() << endl;
+	try {
+		gen.parse_ruleset(rules);
 
-		for (const marker_t& m : output) {
-			log::debug << ' ' << m.m_id << ", " << m.m_pos << endl;
+		while (gen.step_generation(output)) {
+			mlog::debug << "Stepped generation" << gen.generation_num() << endl;
+			gen_num = gen.generation_num();
+
+			for (const marker_t& m : output) {
+				mlog::debug << ' ' << m.m_id << ", " << m.m_pos << endl;
+			}
 		}
+	} catch (etl::exception& e) {
+		mlog::error << "Caught ETL exception: " << e.what() << endl;
+	} catch (mtl::exception& e) {
+		mlog::error << "Caught MTL exception: " << e.id() << endl;
 	}
 
+	mlog::info << "Stepped " << gen.generation_num() << " generations" << mtl::endl;
+	mlog::debug << "End" << mtl::flush;
+
 	while (true) {
 		vid_vsync();
 	}