diff --git a/src/NodeToken.h b/src/NodeToken.h
index 44b59bd..9322ade 100644
--- a/src/NodeToken.h
+++ b/src/NodeToken.h
@@ -135,7 +135,7 @@ void initMem()
     // printf("We satrt with: %ld free and stack:%ld  \n", __startmem, __startStackMemory);
 #endif
 }
-void displayStat(char *text)
+void displayStat(const char *text)
 {
     pushToConsole(string_format(" %s :max used memory: %ld maxstack:%ld  started %d free mem:%ld consumed %ld time:%dms", text, __maxMemUsage, __MaxStackMemory, __startmem, esp_get_free_heap_size(), __startmem - esp_get_free_heap_size(), (__endtime - __starttime) / 240000));
 }
diff --git a/src/asm_struct_enum.h b/src/asm_struct_enum.h
index b3305a3..69d2eeb 100644
--- a/src/asm_struct_enum.h
+++ b/src/asm_struct_enum.h
@@ -109,7 +109,7 @@ class Text
         // _texts.push_back(cc);
         _it = _texts.begin();
     }
-    int findText(char * str)
+    int findText(const char * str)
     {
          #ifdef __SPEED
         return -1;
diff --git a/src/execute_asm.h b/src/execute_asm.h
index 215e5fc..c173f89 100644
--- a/src/execute_asm.h
+++ b/src/execute_asm.h
@@ -556,7 +556,7 @@ void freeExecutable(executable *ex)
   if (ex->start_program != NULL)
   {
 
-    heap_caps_aligned_free(ex->start_program);
+    heap_caps_free(ex->start_program);
   }
 
   ex->start_program = NULL;
diff --git a/src/functionlib.h b/src/functionlib.h
index e1bb296..432bc7a 100644
--- a/src/functionlib.h
+++ b/src/functionlib.h
@@ -57,7 +57,7 @@ __ASM__ float __div(float a,float b)\n\
 \"divn.s f0, f2, f6\"\n\
 \"retw.n\"\n\
 }@";
-char * _div[]={
+const char * _div[]={
 "@___div(d|d):",
 "entry a1,16",
 "div0.s f3, f2",
@@ -109,7 +109,8 @@ __ASM__ uint32_t rand(uint32_t mod) \n\
 \"retw.n\" \n\
 }@";
 #else
-string _rand="\__ASM__ uint32_t rand(uint32_t mod) \n\
+string _rand="\
+__ASM__ uint32_t rand(uint32_t mod) \n\
 {\n\
 \"entry a1,56\" \n\
 //\"l32r a4,@_stack_rand(d)\" \n\