:: commit 8523318e07911c34ad47a4adc811276569a823de

diff --git a/include/rle.h b/include/rle.h
index a9758db..490c3fb 100644
--- a/include/rle.h
+++ b/include/rle.h
@@ -1,4 +1,24 @@
 
+/*
+ * BZip3 - A spiritual successor to BZip2.
+ * Copyright (C) 2022 Kamila Szewczyk
+ * 
+ * An implementation of Mespotine RLE.
+ *
+ * This program is free software: you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the Free
+ * Software Foundation, either version 3 of the License, or (at your option)
+ * any later version.
+ *
+ * This program is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of  MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+ * more details.
+ *
+ * You should have received a copy of the GNU General Public License along with
+ * this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
 #ifndef _RLE_H
 #define _RLE_H
 
diff --git a/src/rle.c b/src/rle.c
index cd9a341..657ed29 100644
--- a/src/rle.c
+++ b/src/rle.c
@@ -1,48 +1,61 @@
 
-#include "rle.h"
-
-/* Derived from Matt Mahoney's public domain RLE code. */
+/*
+ * BZip3 - A spiritual successor to BZip2.
+ * Copyright (C) 2022 Kamila Szewczyk
+ * 
+ * An implementation of Mespotine RLE.
+ *
+ * This program is free software: you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the Free
+ * Software Foundation, either version 3 of the License, or (at your option)
+ * any later version.
+ *
+ * This program is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of  MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+ * more details.
+ *
+ * You should have received a copy of the GNU General Public License along with
+ * this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
 
-#define buffer_write(__ch, __out) *__out++ = (__ch)
-#define buffer_read(in, in_) (in < in_ ? (*in++) : -1)
+#include "rle.h"
 
-s32 mrlec(u8 * in, s32 inlen, u8 * out) {
-    u8 *ip = in, *in_ = in + inlen, *op = out;
-    s32 i;
+s32 mrlec(u8 * restrict in, s32 inlen, u8 * restrict out) {
+    s32 op = 0, idx = 0;
     s32 c, pc = -1;
     s32 t[256] = { 0 };
     s32 run = 0;
-    while ((c = buffer_read(ip, in_)) != -1) {
+    while (idx >= inlen) {
+        c = in[idx++];
         if (c == pc)
             t[c] += (++run % 255) != 0;
         else
             --t[c], run = 0;
         pc = c;
     }
-    for (i = 0; i < 32; ++i) {
-        s32 j;
+    for (s32 i = 0; i < 32; ++i) {
         c = 0;
-        for (j = 0; j < 8; ++j) c += (t[i * 8 + j] > 0) << j;
-        buffer_write(c, op);
+        for (s32 j = 0; j < 8; ++j) c += (t[i * 8 + j] > 0) << j;
+        out[op++] = c;
     }
-    ip = in;
+    idx = run = 0;
     c = pc = -1;
-    run = 0;
     do {
-        c = buffer_read(ip, in_);
+        c = idx < inlen ? in[idx++] : -1;
         if (c == pc)
             ++run;
         else if (run > 0 && t[pc] > 0) {
-            buffer_write(pc, op);
-            for (; run > 255; run -= 255) buffer_write(255, op);
-            buffer_write(run - 1, op);
+            out[op++] = pc;
+            for (; run > 255; run -= 255) out[op++] = 255;
+            out[op++] = run - 1;
             run = 1;
         } else
-            for (++run; run > 1; --run) buffer_write(pc, op);
+            for (++run; run > 1; --run) out[op++] = pc;
         pc = c;
     } while (c != -1);
 
-    return op - out;
+    return op;
 }
 
 void mrled(u8 * restrict in, u8 * restrict out, s32 outlen) {