diff --git a/src/main.c b/src/main.c
index 781f63d..f5b551b 100644
--- a/src/main.c
+++ b/src/main.c
@@ -12,6 +12,7 @@
 #include "main_write_bytes_asm.c"
 #include "main_write_all_bytes.c"
 #include "main_malloc_read.c"
+#include "main_write_backward.c"
 
 int main(int argc, char **argv) {
 	if (argc < 2) {
@@ -25,6 +26,8 @@ int main(int argc, char **argv) {
 		return main_test_write_bytes_asm();
 	} else if (!strncmp(test_name, "write_all_bytes", sizeof("write_bytes"))) {
 		return main_test_write_all_bytes();
+	} else if (!strncmp(test_name, "write_backward", sizeof("write_backward"))) {
+		return main_test_write_backward();
 	} else if (!strncmp(test_name, "read_file", sizeof("read_file"))) {
 		if (argc < 3) {
 			printf("Usage: %s read_file <filename>\n", argv[0]);
diff --git a/src/main_write_all_bytes.c b/src/main_write_all_bytes.c
index fdbfa6d..0a13861 100644
--- a/src/main_write_all_bytes.c
+++ b/src/main_write_all_bytes.c
@@ -20,7 +20,6 @@ static void test_write_to_all_bytes(struct repetitor *repetitor, uint8_t *buffer
 }
 
 int main_test_write_all_bytes() {
-
 	struct repetitor repetitor = {};
 	repetitor_init(&repetitor);
 	printf("CPU Frequency: %ldHz (~%.2fGHz)\n", repetitor.cpu_freq, (float)repetitor.cpu_freq/(1000*1000*1000));
diff --git a/src/main_write_backward.c b/src/main_write_backward.c
new file mode 100644
index 0000000..cdca37e
--- /dev/null
+++ b/src/main_write_backward.c
@@ -0,0 +1,41 @@
+#include "repetition_tester.c"
+
+int main_test_write_backward() {
+	struct repetitor repetitor = {};
+	repetitor_init(&repetitor);
+	printf("CPU Frequency: %ldHz (~%.2fGHz)\n", repetitor.cpu_freq, (float)repetitor.cpu_freq/(1000*1000*1000));
+
+	uint64_t byte_count = 4096 * (1024 * 8);
+
+	while (repeat_cycle_times(&repetitor, 3)) {
+		repetitor_clear(&repetitor);
+		while (repetitor_repeat(&repetitor, 2)) {
+			repetitor_start(&repetitor);
+			uint8_t *buffer = malloc(sizeof(uint8_t) * byte_count);
+			repetitor_measure_start(&repetitor);
+			for (int i = 0; i < byte_count; i++) {
+				buffer[i] = (uint8_t)i;
+			}
+			repetitor_measure_stop(&repetitor, byte_count);
+			free(buffer);
+			repetitor_stop(&repetitor);
+		}
+		repetitor_print_results_label(&repetitor, "write forward");
+
+		repetitor_clear(&repetitor);
+		while (repetitor_repeat(&repetitor, 2)) {
+			repetitor_start(&repetitor);
+			uint8_t *buffer = malloc(sizeof(uint8_t) * byte_count);
+			repetitor_measure_start(&repetitor);
+			for (int i = 0; i < byte_count; i++) {
+				buffer[byte_count - i - 1] = (uint8_t)i;
+			}
+			repetitor_measure_stop(&repetitor, byte_count);
+			free(buffer);
+			repetitor_stop(&repetitor);
+		}
+		repetitor_print_results_label(&repetitor, "write backward");
+	}
+
+	return 0;
+}