Decompile code_801067F0, 80106860, 801068B0 (#89)

* Decompile code_801067F0, 80106860, 801068B0

* clang format

* Remove unnecessary casts

src/code/code_80106860.c

@@ -0,0 +1,13 @@
+#include <ultra64.h>
+#include <global.h>
+
+// memset used in __osMalloc, z_quake, z_view, and z_camera
+void* func_80106860(void* ptr, s32 val, size_t size) {
+    u8* sp4 = ptr;
+    register s32 a3;
+
+    for (a3 = size--; a3 != 0; a3 = size--) {
+        *sp4++ = val;
+    }
+    return ptr;
+}