diff --git a/source/exceptions.c b/source/exceptions.c
index 81c2586..f827ed2 100644
--- a/source/exceptions.c
+++ b/source/exceptions.c
@@ -188,10 +188,10 @@ void detectAndProcessExceptionDumps(void)
             drawFormattedString(false, 10 + 10 * SPACING_X + 3 * i * SPACING_X, posYBottom, COLOR_WHITE, "%02X", *stackDump);
     }
 
-    char folderPath[36],
+    char folderPath[12],
          path[36],
-         fileName[] = "crash_dump_00010000.dmp";
-    
+         fileName[24];
+
     sprintf(folderPath, "dumps/arm%u", dumpHeader->processor);
     findDumpFile(folderPath, fileName);
     sprintf(path, "%s/%s", folderPath, fileName);
diff --git a/source/fmt.c b/source/fmt.c
index 288d590..7fdc9ef 100644
--- a/source/fmt.c
+++ b/source/fmt.c
@@ -1,9 +1,3 @@
-// TuxSH's changes: add support for 64-bit numbers, remove floating-point code
-// TODO! fix left-padding handling with > 10 characters.
-
-#include "fmt.h"
-#include "strings.h"
-
 /* File : barebones/ee_printf.c
 	This file contains an implementation of ee_printf that only requires a method to output a char to a UART without pulling in library code.
 
@@ -37,375 +31,245 @@ This code is based on a file that contains the following:
 
 */
 
-//#include <coremark.h>
-//#include <stdarg.h>
+/* TuxSH's changes: add support for 64-bit numbers, remove floating-point code
+   TODO! fix left-padding handling with > 10 characters. */
 
-#define ZEROPAD  	(1<<0)	/* Pad with zero */
-#define SIGN    	(1<<1)	/* Unsigned/signed long */
-#define PLUS    	(1<<2)	/* Show plus */
-#define SPACE   	(1<<3)	/* Spacer */
-#define LEFT    	(1<<4)	/* Left justified */
-#define HEX_PREP 	(1<<5)	/* 0x */
-#define UPPERCASE   (1<<6)	/* 'ABCDEF' */
+#include "fmt.h"
+#include "strings.h"
 
-#define is_digit(c) ((c) >= '0' && (c) <= '9')
+#define ZEROPAD   (1<<0) //Pad with zero
+#define SIGN      (1<<1) //Unsigned/signed long
+#define PLUS      (1<<2) //Show plus
+#define SPACE     (1<<3) //Spacer
+#define LEFT      (1<<4) //Left justified
+#define HEX_PREP  (1<<5) //0x
+#define UPPERCASE (1<<6) //'ABCDEF'
 
-static char *lower_digits = "0123456789abcdefghijklmnopqrstuvwxyz";
-static char *upper_digits = "0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZ";
+#define IS_DIGIT(c) ((c) >= '0' && (c) <= '9')
 
-/*
-static size_t strnlen(const char *s, size_t count);
-
-static size_t strnlen(const char *s, size_t count)
+static u32 skipAtoi(const char **s)
 {
-  const char *sc;
-  for (sc = s; *sc != '\0' && count--; ++sc);
-  return sc - s;
-}
-*/
-
-static int ee_skip_atoi(const char **s)
-{
-  int i = 0;
-  while (is_digit(**s)) i = i*10 + *((*s)++) - '0';
-  return i;
+    u32 i = 0;
+    while(IS_DIGIT(**s)) i = i * 10 + *((*s)++) - '0';
+    return i;
 }
 
-static char *ee_number(char *str, long long num, int base, int size, int precision, int type)
+static char *processNumber(char *str, s64 num, bool isHex, s32 size, s32 precision, u32 type)
 {
-  char c, sign, tmp[66];
-  char *dig = lower_digits;
-  int i;
+    if(type & LEFT) type &= ~ZEROPAD;
 
-  if (type & UPPERCASE)  dig = upper_digits;
-  if (type & LEFT) type &= ~ZEROPAD;
-  if (base < 2 || base > 36) return 0;
+    char sign = 0;
 
-  c = (type & ZEROPAD) ? '0' : ' ';
-  sign = 0;
-  if (type & SIGN)
-  {
-    if (num < 0)
+    if(type & SIGN)
     {
-      sign = '-';
-      num = -num;
-      size--;
-    }
-    else if (type & PLUS)
-    {
-      sign = '+';
-      size--;
-    }
-    else if (type & SPACE)
-    {
-      sign = ' ';
-      size--;
-    }
-  }
-
-  if (type & HEX_PREP)
-  {
-    if (base == 16)
-      size -= 2;
-    else if (base == 8)
-      size--;
-  }
-
-  i = 0;
-
-  if (num == 0)
-    tmp[i++] = '0';
-  else
-  {
-    while (num != 0)
-    {
-      tmp[i++] = dig[(unsigned long long)num % (unsigned long long)base];
-      num = (long long)((unsigned long long)num / (unsigned long long) base);
-    }
-  }
-
-  if (i > precision) precision = i;
-  size -= precision;
-  if (!(type & (ZEROPAD | LEFT))) while (size-- > 0) *str++ = ' ';
-  if (sign) *str++ = sign;
-
-  if (type & HEX_PREP)
-  {
-    if (base == 8)
-      *str++ = '0';
-    else if (base == 16)
-    {
-      *str++ = '0';
-      *str++ = lower_digits[33];
-    }
-  }
-
-  if (!(type & LEFT)) while (size-- > 0) *str++ = c;
-  while (i < precision--) *str++ = '0';
-  while (i-- > 0) *str++ = tmp[i];
-  while (size-- > 0) *str++ = ' ';
-
-  return str;
-}
-
-static char *eaddr(char *str, unsigned char *addr, int size, int precision __attribute__((unused)), int type)
-{
-  char tmp[24];
-  char *dig = lower_digits;
-  int i, len;
-
-  if (type & UPPERCASE)  dig = upper_digits;
-  len = 0;
-  for (i = 0; i < 6; i++)
-  {
-    if (i != 0) tmp[len++] = ':';
-    tmp[len++] = dig[addr[i] >> 4];
-    tmp[len++] = dig[addr[i] & 0x0F];
-  }
-
-  if (!(type & LEFT)) while (len < size--) *str++ = ' ';
-  for (i = 0; i < len; ++i) *str++ = tmp[i];
-  while (len < size--) *str++ = ' ';
-
-  return str;
-}
-
-static char *iaddr(char *str, unsigned char *addr, int size, int precision __attribute__((unused)), int type)
-{
-  char tmp[24];
-  int i, n, len;
-
-  len = 0;
-  for (i = 0; i < 4; i++)
-  {
-    if (i != 0) tmp[len++] = '.';
-    n = addr[i];
-
-    if (n == 0)
-      tmp[len++] = lower_digits[0];
-    else
-    {
-      if (n >= 100)
-      {
-        tmp[len++] = lower_digits[n / 100];
-        n = n % 100;
-        tmp[len++] = lower_digits[n / 10];
-        n = n % 10;
-      }
-      else if (n >= 10)
-      {
-        tmp[len++] = lower_digits[n / 10];
-        n = n % 10;
-      }
-
-      tmp[len++] = lower_digits[n];
-    }
-  }
-
-  if (!(type & LEFT)) while (len < size--) *str++ = ' ';
-  for (i = 0; i < len; ++i) *str++ = tmp[i];
-  while (len < size--) *str++ = ' ';
-
-  return str;
-}
-
-static int ee_vsprintf(char *buf, const char *fmt, va_list args)
-{
-  int len;
-  long long num;
-  int i, base;
-  char *str;
-  char *s;
-  int flags;            // Flags to number()
-
-  int field_width;      // Width of output field
-  int precision;        // Min. # of digits for integers; max number of chars for from string
-  int qualifier;        // 'h', 'l', or 'L' for integer fields
-  int qualifier2;
-
-  for (str = buf; *fmt; fmt++)
-  {
-    if (*fmt != '%')
-    {
-      *str++ = *fmt;
-      continue;
-    }
-
-    // Process flags
-    flags = 0;
-repeat:
-    fmt++; // This also skips first '%'
-    switch (*fmt)
-    {
-      case '-': flags |= LEFT; goto repeat;
-      case '+': flags |= PLUS; goto repeat;
-      case ' ': flags |= SPACE; goto repeat;
-      case '#': flags |= HEX_PREP; goto repeat;
-      case '0': flags |= ZEROPAD; goto repeat;
-    }
-
-    // Get field width
-    field_width = -1;
-    if (is_digit(*fmt))
-      field_width = ee_skip_atoi(&fmt);
-    else if (*fmt == '*')
-    {
-      fmt++;
-      field_width = va_arg(args, int);
-      if (field_width < 0)
-      {
-        field_width = -field_width;
-        flags |= LEFT;
-      }
-    }
-
-    // Get the precision
-    precision = -1;
-    if (*fmt == '.')
-    {
-      ++fmt;
-      if (is_digit(*fmt))
-        precision = ee_skip_atoi(&fmt);
-      else if (*fmt == '*')
-      {
-        ++fmt;
-        precision = va_arg(args, int);
-      }
-      if (precision < 0) precision = 0;
-    }
-
-    // Get the conversion qualifier
-    qualifier = qualifier2 = -1;
-    if(*fmt == 'L')
-        qualifier = *fmt++;
-    else if (*fmt == 'l')
-    {
-      qualifier = *fmt++;
-      if(*fmt == 'l') qualifier2 = *fmt++;
-    }
-    else if (*fmt == 'h')
-    {
-      qualifier = *fmt++;
-      if(*fmt == 'h') qualifier2 = *fmt++;
-    }
-
-    // Default base
-    base = 10;
-
-    switch (*fmt)
-    {
-      case 'c':
-        if (!(flags & LEFT)) while (--field_width > 0) *str++ = ' ';
-        *str++ = (unsigned char) va_arg(args, int);
-        while (--field_width > 0) *str++ = ' ';
-        continue;
-
-      case 's':
-        s = va_arg(args, char *);
-        if (!s) s = "<NULL>";
-        if(precision != -1)
-            len = strnlen(s, precision);
-        else
-            len = strlen(s);
-        if (!(flags & LEFT)) while (len < field_width--) *str++ = ' ';
-        for (i = 0; i < len; ++i) *str++ = *s++;
-        while (len < field_width--) *str++ = ' ';
-        continue;
-
-      case 'p':
-        if (field_width == -1)
+        if(num < 0)
         {
-          field_width = 2 * sizeof(void *);
-          flags |= ZEROPAD;
+            sign = '-';
+            num = -num;
+            size--;
+        }
+        else if(type & PLUS)
+        {
+            sign = '+';
+            size--;
+        }
+        else if(type & SPACE)
+        {
+            sign = ' ';
+            size--;
         }
-        str = ee_number(str, (unsigned long) va_arg(args, void *), 16, field_width, precision, flags);
-        continue;
-
-      case 'A':
-        flags |= UPPERCASE;
-
-      case 'a':
-        if (qualifier == 'l')
-          str = eaddr(str, va_arg(args, unsigned char *), field_width, precision, flags);
-        else
-          str = iaddr(str, va_arg(args, unsigned char *), field_width, precision, flags);
-        continue;
-
-      // Integer number formats - set up the flags and "break"
-      case 'o':
-        base = 8;
-        break;
-
-      case 'X':
-        flags |= UPPERCASE;
-
-      case 'x':
-        base = 16;
-        break;
-
-      case 'd':
-      case 'i':
-        flags |= SIGN;
-
-      case 'u':
-        break;
-
-      default:
-        if (*fmt != '%') *str++ = '%';
-        if (*fmt)
-          *str++ = *fmt;
-        else
-          --fmt;
-        continue;
     }
 
-    // bugfixes here:
+    if(type & HEX_PREP && isHex) size -= 2;
 
-    if(flags & SIGN)
-    {
-        if (qualifier == 'l' && qualifier2 == 'l')
-            num = va_arg(args, long long int);
-        else if(qualifier == 'l')
-            num = va_arg(args, long int);
-/*        else if(qualifier == 'h' && qualifier == 'h')
-            num = va_arg(args, signed char);
-        else if(qualifier == 'h')
-            num = va_arg(args, short);*/
-        else
-            num = va_arg(args, int);
-    }
+    static const char *lowerDigits = "0123456789abcdef",
+                      *upperDigits = "0123456789ABCDEF";
+
+    s32 i = 0;
+    char tmp[66],
+         c = (type & ZEROPAD) ? '0' : ' ';
+    const char *dig = (type & UPPERCASE) ? upperDigits : lowerDigits;
+
+    if(num == 0) tmp[i++] = '0';
     else
     {
-      if (qualifier == 'l' && qualifier2 == 'l')
-        num = va_arg(args, unsigned long long int);
-      else if(qualifier == 'l')
-        num = va_arg(args, unsigned long int);
-/*      else if(qualifier == 'h' && qualifier == 'h')
-          num = va_arg(args, unsigned char);
-        else if(qualifier == 'h')
-          num = va_arg(args, unsigned short);*/
-      else
-        num = va_arg(args, unsigned int);
+        while (num != 0)
+        {
+            u64 base = isHex ? 16ULL : 10ULL;
+            tmp[i++] = dig[(u64)num % base];
+            num = (s64)((u64)num / base);
+        }
     }
 
-    str = ee_number(str, num, base, field_width, precision, flags);
-  }
+    if(i > precision) precision = i;
+    size -= precision;
+    if(!(type & (ZEROPAD | LEFT))) while(size-- > 0) *str++ = ' ';
+    if(sign) *str++ = sign;
 
-  *str = '\0';
-  return str - buf;
+    if(type & HEX_PREP && isHex)
+    {
+        *str++ = '0';
+        *str++ = 'x';
+    }
+
+    if(!(type & LEFT)) while(size-- > 0) *str++ = c;
+    while(i < precision--) *str++ = '0';
+    while(i-- > 0) *str++ = tmp[i];
+    while(size-- > 0) *str++ = ' ';
+
+    return str;
 }
 
-int vsprintf(char *buf, const char *fmt, va_list args)
+u32 vsprintf(char *buf, const char *fmt, va_list args)
 {
-    return ee_vsprintf(buf, fmt, args);
+    char *str;
+
+    for(str = buf; *fmt; fmt++)
+    {
+        if(*fmt != '%')
+        {
+            *str++ = *fmt;
+            continue;
+        }
+
+        //Process flags
+        u32 flags = 0; //Flags to number()
+        bool loop = false;
+
+        while(!loop)
+        {
+            switch(*++fmt)
+            {
+                case '-': flags |= LEFT; break;
+                case '+': flags |= PLUS; break;
+                case ' ': flags |= SPACE; break;
+                case '#': flags |= HEX_PREP; break;
+                case '0': flags |= ZEROPAD; break;
+                default: loop = true; break;
+            }
+        }
+
+        //Get field width
+        s32 fieldWidth = -1; //Width of output field
+        if(IS_DIGIT(*fmt)) fieldWidth = skipAtoi(&fmt);
+        else if(*fmt == '*')
+        {
+            fmt++;
+
+            fieldWidth = va_arg(args, s32);
+
+            if(fieldWidth < 0)
+            {
+                fieldWidth = -fieldWidth;
+                flags |= LEFT;
+            }
+        }
+
+        //Get the precision
+        s32 precision = -1; //Min. # of digits for integers; max number of chars for from string
+        if(*fmt == '.')
+        {
+            fmt++;
+
+            if(IS_DIGIT(*fmt)) precision = skipAtoi(&fmt);
+            else if(*fmt == '*')
+            {
+                fmt++;
+                precision = va_arg(args, s32);
+            }
+
+            if(precision < 0) precision = 0;
+        }
+
+        //Get the conversion qualifier
+        bool isLongLong = false;
+        if(*fmt == 'l')
+        {
+            if(*++fmt == 'l')
+            {
+                fmt++;
+                isLongLong = true;
+            }
+        }
+
+        //Default base
+        bool isHex = false;
+
+        switch(*fmt)
+        {
+            case 'c':
+                if(!(flags & LEFT)) while(--fieldWidth > 0) *str++ = ' ';
+                *str++ = (u8)va_arg(args, s32);
+                while(--fieldWidth > 0) *str++ = ' ';
+                continue;
+
+            case 's':
+            {
+                char *s = va_arg(args, char *);
+                if(!s) s = "<NULL>";
+                u32 len = (precision != -1) ? strnlen(s, precision) : strlen(s);
+                if(!(flags & LEFT)) while((s32)len < fieldWidth--) *str++ = ' ';
+                for(u32 i = 0; i < len; i++) *str++ = *s++;
+                while((s32)len < fieldWidth--) *str++ = ' ';
+                continue;
+            }
+
+            case 'p':
+                if(fieldWidth == -1)
+                {
+                    fieldWidth = 8;
+                    flags |= ZEROPAD;
+                }
+                str = processNumber(str, (s64)va_arg(args, u32), true, fieldWidth, precision, flags);
+                continue;
+
+            //Integer number formats - set up the flags and "break"
+            case 'X':
+                flags |= UPPERCASE;
+
+            case 'x':
+                isHex = true;
+                break;
+
+            case 'd':
+            case 'i':
+                flags |= SIGN;
+
+            case 'u':
+                break;
+
+            default:
+                if(*fmt != '%') *str++ = '%';
+                if(*fmt) *str++ = *fmt;
+                else fmt--;
+                continue;
+        }
+
+        s64 num;
+
+        if(flags & SIGN)
+        {
+            if(isLongLong) num = va_arg(args, s64);
+            else num = va_arg(args, s32);
+        }
+        else
+        {
+            if(isLongLong) num = va_arg(args, u64);
+            else num = va_arg(args, u32);
+        }
+
+        str = processNumber(str, num, isHex, fieldWidth, precision, flags);
+    }
+
+    *str = 0;
+    return str - buf;
 }
 
-int sprintf(char *buf, const char *fmt, ...)
+u32 sprintf(char *buf, const char *fmt, ...)
 {
-    int n = 0;
     va_list args;
     va_start(args, fmt);
-    n = ee_vsprintf(buf, fmt, args);
+    u32 res = vsprintf(buf, fmt, args);
     va_end(args);
-    return n;
+    return res;
 }
diff --git a/source/fmt.h b/source/fmt.h
index f5867d7..94ed5bf 100644
--- a/source/fmt.h
+++ b/source/fmt.h
@@ -2,5 +2,5 @@
 #include "memory.h"
 #include <stdarg.h>
 
-int vsprintf(char *buf, const char *fmt, va_list args);
-int sprintf(char *buf, const char *fmt, ...);
+u32 vsprintf(char *buf, const char *fmt, va_list args);
+u32 sprintf(char *buf, const char *fmt, ...);
diff --git a/source/types.h b/source/types.h
index 38d6b65..afbcba5 100644
--- a/source/types.h
+++ b/source/types.h
@@ -35,6 +35,14 @@ typedef volatile u8 vu8;
 typedef volatile u16 vu16;
 typedef volatile u32 vu32;
 typedef volatile u64 vu64;
+typedef int8_t s8;
+typedef int16_t s16;
+typedef int32_t s32;
+typedef int64_t s64;
+typedef volatile s8 vs8;
+typedef volatile s16 vs16;
+typedef volatile s32 vs32;
+typedef volatile s64 vs64;
 
 #include "3dsheaders.h"