diff -r 7f29a65aa1e4 -r 0f6878b5395a project_files/hwc/rtl/misc.h
--- a/project_files/hwc/rtl/misc.h	Mon Feb 10 00:43:03 2014 +0400
+++ b/project_files/hwc/rtl/misc.h	Mon Feb 10 23:02:49 2014 +0400
@@ -18,10 +18,9 @@
 #define     macro_dispatcher_(func, nargs)          macro_dispatcher__(func, nargs)
 #define     macro_dispatcher__(func, nargs)         func ## nargs
 
-#define     FPCRTL_DEBUG
+//#define     FPCRTL_DEBUG
 
-#define     FIX_STRING(s)                           (s.str[s.len] = 0)
-
+#define     FIX_STRING(s)                           (s.str[s.len == 255 ? 254 : s.len] = 0)
 //#define fpcrtl_check_string(s)     do{ if(strlen((s).str) != (s).len){ \
 //                                        printf("String %s internal inconsistency error. Length should be %d but actually is %d.\n", (s).str, strlen((s).str), (s).len); \
 //                                        assert(0);\
@@ -41,6 +40,7 @@
 string255   fpcrtl_chrconcat(char a, char b);
 
 astring     fpcrtl_strconcatA(astring str1, astring str2);
+astring     fpcrtl_strappendA(astring s, char c);
 
 // return true if str1 == str2
 bool        fpcrtl_strcompare(string255 str1, string255 str2);
@@ -48,9 +48,11 @@
 bool        fpcrtl_strncompare(string255 a, string255 b);
 bool        fpcrtl_strncompareA(astring a, astring b);
 
-char*       fpcrtl__pchar(string255 s);
-string255   fpcrtl_pchar2str(char *s);
-astring     fpcrtl_pchar2astr(char *s);
+#define     fpcrtl__pchar(s)                    fpcrtl__pchar__vars(&(s))
+#define     fpcrtl__pcharA(s)                   fpcrtl__pcharA__vars(&(s))
+char*       fpcrtl__pchar__vars(string255 * s);
+string255   fpcrtl_pchar2str(const char *s);
+astring     fpcrtl_pchar2astr(const char *s);
 astring     fpcrtl_str2astr(string255 s);
 string255   fpcrtl_astr2str(astring s);
 #define     fpcrtl_TypeInfo                         sizeof // dummy