diff -r 56d2f2d5aad8 -r 4feced261c68 project_files/hwc/rtl/misc.c
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/project_files/hwc/rtl/misc.c	Tue Jan 21 22:38:13 2014 +0100
@@ -0,0 +1,168 @@
+#include "misc.h"
+#include <stdio.h>
+#include <stdarg.h>
+#include <string.h>
+#include <assert.h>
+
+char strbuf[512];
+
+void fpcrtl_assert(int i)
+{
+    if(!i){
+        assert(0);
+    }
+}
+
+// EFFECTS: return the nearest integer of the given number
+int fpcrtl_round(double number)
+{
+    return (number >= 0) ? (int)(number + 0.5) : (int)(number - 0.5);
+}
+
+void fpcrtl_printf(const char* format, ...)
+{
+#ifdef FPCRTL_DEBUG
+    va_list args;
+    va_start (args, format);
+    vprintf (format, args);
+    va_end (args);
+#endif
+}
+
+//
+//void fpcrtl_check_string(string255 str)
+//{
+//#ifdef FPCRTL_DEBUG
+//    int len = strlen(str.str);
+//    if(len != str.len){
+//        printf("String %s internal inconsistency error. Length should be %d but actually is %d.\n", str.str, len, str.len);
+//    }
+//    //assert(len == str.len);
+//#endif
+//}
+
+string255 fpcrtl_strconcat(string255 str1, string255 str2)
+{
+    //printf("str1 = %d, %d\n", str1.len, strlen(str1.str));
+    //printf("str2 = %d, %d\n", str2.len, strlen(str2.str));
+
+#ifdef FPCRTL_DEBUG
+    if(str1.len + (int)(str2.len) > 255){
+        printf("String overflow\n");
+        printf("str1(%d): %s\nstr2(%d): %s\n", str1.len, str1.str, str2.len, str2.str);
+        printf("String will be truncated.\n");
+
+        strbuf[0] = 0;
+        strcpy(strbuf, str1.str);
+        strcat(strbuf, str2.str);
+        memcpy(str1.str, strbuf, 255);
+        str1.str[254] = 0;
+
+        return str1;
+    }
+#endif
+
+    memcpy(&(str1.str[str1.len]), str2.str, str2.len);
+    str1.str[str1.len + str2.len] = 0;
+    str1.len += str2.len;
+
+    return str1;
+}
+
+string255 fpcrtl_strappend(string255 s, char c)
+{
+    s.str[s.len] = c;
+    s.str[s.len + 1] = 0;
+    s.len ++;
+
+    return s;
+}
+
+string255 fpcrtl_strprepend(char c, string255 s)
+{
+    FIX_STRING(s);
+
+    memmove(s.str + 1, s.str, s.len + 1); // also move '/0'
+    s.str[0] = c;
+    s.len++;
+
+    return s;
+}
+
+string255 fpcrtl_chrconcat(char a, char b)
+{
+    string255 result;
+
+    result.len = 2;
+    result.str[0] = a;
+    result.str[1] = b;
+    result.str[2] = 0;
+
+    return result;
+}
+
+bool fpcrtl_strcompare(string255 str1, string255 str2)
+{
+    //printf("str1 = %d, %d\n", str1.len, strlen(str1.str));
+    //printf("str2 = %d, %d\n", str2.len, strlen(str2.str));
+    FIX_STRING(str1);
+    FIX_STRING(str2);
+
+    if(strcmp(str1.str, str2.str) == 0){
+        return true;
+    }
+
+    return false;
+}
+
+bool fpcrtl_strcomparec(string255 a, char b)
+{
+    FIX_STRING(a);
+
+    if(a.len == 1 && a.str[0] == b){
+        return true;
+    }
+
+    return false;
+}
+
+bool fpcrtl_strncompare(string255 a, string255 b)
+{
+    return !fpcrtl_strcompare(a, b);
+}
+
+//char* fpcrtl_pchar(string255 s)
+//{
+//    return s.str;
+//}
+
+string255 fpcrtl_pchar2str(char *s)
+{
+    string255 result;
+    int t = strlen(s);
+
+    if(t > 255){
+        printf("pchar2str, length > 255\n");
+        assert(0);
+    }
+
+    result.len = t;
+    memcpy(result.str, s, t);
+    result.str[t] = 0;
+
+    return result;
+}
+
+string255 fpcrtl_make_string(const char* s) {
+    string255 result;
+    strcpy(result.str, s);
+    result.len = strlen(s);
+    return result;
+}
+
+#ifdef EMSCRIPTEN
+GLenum glewInit()
+{
+    return GLEW_OK;
+}
+#endif