Web: Change to a webworker architecture to stop freezing main thread

sys.h

@@ -15,14 +15,13 @@ enum { /* TODO */
      SYS_MADV_SEQUENTIAL = 0,
 };
 
-static uint8_t g_buf[1024*1024*1024];
+static uint8_t g_buf[1024*1024*1024 /* 1 GB */];
 static size_t g_buf_len = 0;
 
 static void* sys_mmap_anon_shared(size_t size, int, int)
 {
-    /* FIXME: this program relies on few memory allocations, a simple bump
-     * allocator works for now, but will cause memory leaks in the future */
-
+	/* FIXME: this program relies on very few memory allocations, a simple bump
+	 * allocator works for now, but will cause memory leaks in the future */
     size = (size + 7ULL) & ~7ULL;
 
     if (g_buf_len + size > sizeof g_buf) {