* Acess2
* Common Library Functions
*/
-#include <common.h>
+#include <acess.h>
+#include <hal_proc.h>
// === CONSTANTS ===
#define RANDOM_SEED 0xACE55052
-#define RANDOM_A 0x12231ADE
-#define RANDOM_C 0x1BADBEEF
+#define RANDOM_A 0x00731ADE
+#define RANDOM_C 12345
+#define RANDOM_SPRUCE 0xf12b039
// Jan Feb Mar Apr May Jun Jul Aug Sept Oct Nov Dec
const short DAYS_BEFORE[] = {0, 31, 59, 90, 120, 151, 181, 212, 243, 273, 304, 334};
#define UNIX_TO_2K ((30*365*3600*24) + (7*3600*24)) //Normal years + leap years
// === PROTOTYPES ===
+#if 0
+ int atoi(const char *string);
+void itoa(char *buf, Uint64 num, int base, int minLength, char pad);
+ int vsnprintf(char *__s, size_t __maxlen, const char *__format, va_list args);
+ int sprintf(char *__s, const char *__format, ...);
+#endif
+ int tolower(int c);
+#if 0
+ int strucmp(const char *Str1, const char *Str2);
+char *strchr(const char *__s, int __c);
+ int strpos(const char *Str, char Ch);
+ Uint8 ByteSum(void *Ptr, int Size);
+size_t strlen(const char *__s);
+char *strcpy(char *__str1, const char *__str2);
+char *strncpy(char *__str1, const char *__str2, size_t max);
+ int strcmp(const char *str1, const char *str2);
+ int strncmp(const char *str1, const char *str2, size_t num);
+char *_strdup(const char *File, int Line, const char *Str);
+char **str_split(const char *__str, char __ch);
+ int strpos8(const char *str, Uint32 Search);
int ReadUTF8(Uint8 *str, Uint32 *Val);
+ int WriteUTF8(Uint8 *str, Uint32 Val);
+ int DivUp(int num, int dem);
+Sint64 timestamp(int sec, int mins, int hrs, int day, int month, int year);
+void format_date(tTime TS, int *year, int *month, int *day, int *hrs, int *mins, int *sec, int *ms);
+ int rand(void);
+
+ int CheckString(char *String);
+ int CheckMem(void *Mem, int NumBytes);
+
+ int ModUtil_LookupString(char **Array, char *Needle);
+ int ModUtil_SetIdent(char *Dest, char *Value);
+
+ int Hex(char *Dest, size_t Size, const Uint8 *SourceData);
+ int UnHex(Uint8 *Dest, size_t DestSize, const char *SourceString);
+#endif
+
+// === EXPORTS ===
+EXPORT(atoi);
+EXPORT(itoa);
+EXPORT(vsnprintf);
+EXPORT(sprintf);
+EXPORT(tolower);
+EXPORT(strucmp);
+EXPORT(strchr);
+EXPORT(strpos);
+EXPORT(ByteSum);
+EXPORT(strlen);
+EXPORT(strcpy);
+EXPORT(strncpy);
+EXPORT(strcat);
+EXPORT(strncat);
+EXPORT(strcmp);
+EXPORT(strncmp);
+//EXPORT(strdup);
+EXPORT(_strdup); // Takes File/Line too
+EXPORT(str_split);
+EXPORT(strpos8);
+EXPORT(DivUp);
+EXPORT(ReadUTF8);
+EXPORT(WriteUTF8);
+EXPORT(timestamp);
+EXPORT(CheckString);
+EXPORT(CheckMem);
+EXPORT(ModUtil_LookupString);
+EXPORT(ModUtil_SetIdent);
+EXPORT(UnHex);
+EXPORT(SwapEndian16);
+EXPORT(SwapEndian32);
+EXPORT(memmove);
// === CODE ===
+/**
+ * \brief Convert a string into an integer
+ */
+int atoi(const char *string)
+{
+ int ret = 0;
+ ParseInt(string, &ret);
+ return ret;
+}
+int ParseInt(const char *string, int *Val)
+{
+ int ret = 0;
+ int bNeg = 0;
+ const char *orig_string = string;
+
+ //Log("atoi: (string='%s')", string);
+
+ // Clear non-numeric characters
+ while( !('0' <= *string && *string <= '9') && *string != '-' ) string++;
+ if( *string == '-' ) {
+ bNeg = 1;
+ while( !('0' <= *string && *string <= '9') ) string++;
+ }
+
+ if(*string == '0')
+ {
+ string ++;
+ if(*string == 'x')
+ {
+ // Hex
+ string ++;
+ for( ;; string ++ )
+ {
+ if('0' <= *string && *string <= '9') {
+ ret *= 16;
+ ret += *string - '0';
+ }
+ else if('A' <= *string && *string <= 'F') {
+ ret *= 16;
+ ret += *string - 'A' + 10;
+ }
+ else if('a' <= *string && *string <= 'f') {
+ ret *= 16;
+ ret += *string - 'a' + 10;
+ }
+ else
+ break;
+ }
+ }
+ else // Octal
+ {
+ for( ; '0' <= *string && *string <= '7'; string ++ )
+ {
+ ret *= 8;
+ ret += *string - '0';
+ }
+ }
+ }
+ else // Decimal
+ {
+ for( ; '0' <= *string && *string <= '9'; string++)
+ {
+ ret *= 10;
+ ret += *string - '0';
+ }
+ // Error check
+ if( ret == 0 ) return 0;
+ }
+
+ if(bNeg) ret = -ret;
+
+ //Log("atoi: RETURN %i", ret);
+
+ if(Val) *Val = ret;
+
+ return string - orig_string;
+}
+
static const char cUCDIGITS[] = "0123456789ABCDEF";
/**
- * \fn static void itoa(char *buf, Uint num, int base, int minLength, char pad)
+ * \fn void itoa(char *buf, Uint64 num, int base, int minLength, char pad)
* \brief Convert an integer into a character string
*/
-void itoa(char *buf, Uint num, int base, int minLength, char pad)
+void itoa(char *buf, Uint64 num, int base, int minLength, char pad)
{
- char tmpBuf[BITS];
+ char tmpBuf[64+1];
int pos=0, i;
+ Uint64 rem;
// Sanity check
if(!buf) return;
// Convert
while(num > base-1) {
- tmpBuf[pos] = cUCDIGITS[ num % base ];
- num /= (Uint)base; // Shift `num` right 1 digit
+ num = DivMod64U(num, base, &rem); // Shift `num` and get remainder
+ tmpBuf[pos] = cUCDIGITS[ rem ];
pos++;
}
- tmpBuf[pos++] = cUCDIGITS[ num % base ]; // Last digit of `num`
+ tmpBuf[pos++] = cUCDIGITS[ num ]; // Last digit of `num`
// Put in reverse
i = 0;
}
/**
- * \fn int tolower(int __c)
+ * \brief Append a character the the vsnprintf output
+ */
+#define PUTCH(c) _putch(c)
+#define GETVAL() do {\
+ if(isLongLong) val = va_arg(args, Uint64);\
+ else val = va_arg(args, unsigned int);\
+ }while(0)
+/**
+ * \brief VArg String Number Print Formatted
+ */
+int vsnprintf(char *__s, size_t __maxlen, const char *__format, va_list args)
+{
+ char c, pad = ' ';
+ int minSize = 0, precision = -1, len;
+ char tmpBuf[34]; // For Integers
+ const char *p = NULL;
+ int isLongLong = 0;
+ Uint64 val;
+ size_t pos = 0;
+ // Flags
+ int bPadLeft = 0;
+
+ auto void _putch(char ch);
+
+ void _putch(char ch)
+ {
+ if(pos < __maxlen)
+ {
+ if(__s) __s[pos] = ch;
+ pos ++;
+ }
+ }
+
+ while((c = *__format++) != 0)
+ {
+ // Non control character
+ if(c != '%') { PUTCH(c); continue; }
+
+ c = *__format++;
+ if(c == '\0') break;
+
+ // Literal %
+ if(c == '%') { PUTCH('%'); continue; }
+
+ // Pointer - Done first for debugging
+ if(c == 'p') {
+ Uint ptr = va_arg(args, Uint);
+ PUTCH('*'); PUTCH('0'); PUTCH('x');
+ for( len = BITS/4; len --; )
+ PUTCH( cUCDIGITS[ (ptr>>(len*4))&15 ] );
+ continue ;
+ }
+
+ // - Padding Side Flag
+ if(c == '-') {
+ bPadLeft = 1;
+ c = *__format++;
+ }
+
+ // - Padding
+ if(c == '0') {
+ pad = '0';
+ c = *__format++;
+ }
+ else
+ pad = ' ';
+
+ // - Minimum length
+ if(c == '*') { // Dynamic length
+ minSize = va_arg(args, unsigned int);
+ c = *__format++;
+ }
+ else if('1' <= c && c <= '9')
+ {
+ minSize = 0;
+ while('0' <= c && c <= '9')
+ {
+ minSize *= 10;
+ minSize += c - '0';
+ c = *__format++;
+ }
+ }
+ else
+ minSize = 0;
+
+ // - Precision
+ precision = -1;
+ if( c == '.' ) {
+ c = *__format++;
+
+ if(c == '*') { // Dynamic length
+ precision = va_arg(args, unsigned int);
+ c = *__format++;
+ }
+ else if('1' <= c && c <= '9')
+ {
+ precision = 0;
+ while('0' <= c && c <= '9')
+ {
+ precision *= 10;
+ precision += c - '0';
+ c = *__format++;
+ }
+ }
+ }
+
+ // - Default, Long or LongLong?
+ isLongLong = 0;
+ if(c == 'l') // Long is actually the default on x86
+ {
+ c = *__format++;
+ if(c == 'l') {
+ c = *__format++;
+ isLongLong = 1;
+ }
+ }
+
+ // - Now get the format code
+ p = tmpBuf;
+ switch(c)
+ {
+ case 'd':
+ case 'i':
+ GETVAL();
+ if( isLongLong && val >> 63 ) {
+ PUTCH('-');
+ val = -val;
+ }
+ else if( !isLongLong && val >> 31 ) {
+ PUTCH('-');
+ val = -(Sint32)val;
+ }
+ itoa(tmpBuf, val, 10, minSize, pad);
+ goto printString;
+ case 'u': // Unsigned
+ GETVAL();
+ itoa(tmpBuf, val, 10, minSize, pad);
+ goto printString;
+ case 'P': // Physical Address
+ PUTCH('0');
+ PUTCH('x');
+ if(sizeof(tPAddr) > 4) isLongLong = 1;
+ GETVAL();
+ itoa(tmpBuf, val, 16, minSize, pad);
+ goto printString;
+ case 'X': // Hex
+ if(BITS == 64)
+ isLongLong = 1; // TODO: Handle non-x86 64-bit archs
+ GETVAL();
+ itoa(tmpBuf, val, 16, minSize, pad);
+ goto printString;
+
+ case 'x': // Lower case hex
+ GETVAL();
+ itoa(tmpBuf, val, 16, minSize, pad);
+ goto printString;
+ case 'o': // Octal
+ GETVAL();
+ itoa(tmpBuf, val, 8, minSize, pad);
+ goto printString;
+ case 'b':
+ GETVAL();
+ itoa(tmpBuf, val, 2, minSize, pad);
+ goto printString;
+
+ case 'B': //Boolean
+ val = va_arg(args, unsigned int);
+ if(val) p = "True";
+ else p = "False";
+ goto printString;
+
+ // String - Null Terminated Array
+ case 's':
+ p = va_arg(args, char*); // Get Argument
+ if( !p || !CheckString(p) ) p = "(inval)"; // Avoid #PFs
+ printString:
+ if(!p) p = "(null)";
+ len = strlen(p);
+ if( !bPadLeft ) while(len++ < minSize) PUTCH(pad);
+ while(*p && precision--) PUTCH(*p++);
+ if( bPadLeft ) while(len++ < minSize) PUTCH(pad);
+ break;
+
+ case 'C': // Non-Null Terminated Character Array
+ p = va_arg(args, char*);
+ if( !CheckMem(p, minSize) ) continue; // No #PFs please
+ if(!p) goto printString;
+ while(minSize--) PUTCH(*p++);
+ break;
+
+ // Single Character
+ case 'c':
+ default:
+ GETVAL();
+ PUTCH( (Uint8)val );
+ break;
+ }
+ }
+
+ if(__s && pos != __maxlen)
+ __s[pos] = '\0';
+
+ return pos;
+}
+#undef PUTCH
+
+/**
+ */
+int sprintf(char *__s, const char *__format, ...)
+{
+ va_list args;
+ int ret;
+
+ va_start(args, __format);
+ ret = vsnprintf(__s, -1, __format, args);
+ va_end(args);
+
+ return ret;
+}
+
+/**
+ * \fn int tolower(int c)
* \brief Converts a character to lower case
*/
int tolower(int c)
}
/**
- * \fn int strucmp(char *Str1, char *Str2)
+ * \fn int strucmp(const char *Str1, const char *Str2)
* \brief Compare \a Str1 and \a Str2 case-insensitively
*/
-int strucmp(char *Str1, char *Str2)
+int strucmp(const char *Str1, const char *Str2)
{
while(*Str1 && tolower(*Str1) == tolower(*Str2))
Str1++, Str2++;
}
/**
- * \fn int strpos(char *Str, char Ch)
+ * \brief Locate a byte in a string
+ */
+char *strchr(const char *__s, int __c)
+{
+ for( ; *__s; __s ++ )
+ {
+ if( *__s == __c ) return (char*)__s;
+ }
+ return NULL;
+}
+
+/**
+ * \fn int strpos(const char *Str, char Ch)
* \brief Search a string for an ascii character
*/
-int strpos(char *Str, char Ch)
+int strpos(const char *Str, char Ch)
{
int pos;
for(pos=0;Str[pos];pos++)
}
/**
+ * \fn Uint8 ByteSum(void *Ptr, int Size)
+ * \brief Adds the bytes in a memory region and returns the sum
*/
-int ByteSum(void *Ptr, int Size)
+Uint8 ByteSum(const void *Ptr, int Size)
{
- int sum = 0;
- while(Size--) sum += *(Uint8*)Ptr++;
+ Uint8 sum = 0;
+ const Uint8 *data = Ptr;
+ while(Size--) sum += *(data++);
return sum;
}
/**
- * \fn Uint strlen(char *__str)
+ * \fn size_t strlen(const char *__str)
* \brief Get the length of string
*/
-Uint strlen(char *__str)
+size_t strlen(const char *__str)
{
- Uint ret = 0;
+ size_t ret = 0;
while(*__str++) ret++;
return ret;
}
/**
- * \fn char *strcpy(char *__str1, char *__str2)
* \brief Copy a string to a new location
*/
-char *strcpy(char *__str1, char *__str2)
+char *strcpy(char *__str1, const char *__str2)
{
while(*__str2)
*__str1++ = *__str2++;
}
/**
- * \fn int strcmp(char *str1, char *str2)
+ * \brief Copy a string to a new location
+ * \note Copies at most `max` chars
+ */
+char *strncpy(char *__str1, const char *__str2, size_t __max)
+{
+ while(*__str2 && __max-- >= 1)
+ *__str1++ = *__str2++;
+ if(__max)
+ *__str1 = '\0'; // Terminate String
+ return __str1;
+}
+
+/**
+ * \brief Append a string to another
+ */
+char *strcat(char *__dest, const char *__src)
+{
+ while(*__dest++);
+ __dest--;
+ while(*__src)
+ *__dest++ = *__src++;
+ *__dest = '\0';
+ return __dest;
+}
+
+/**
+ * \brief Append at most \a n chars to a string from another
+ * \note At most n+1 chars are written (the dest is always zero terminated)
+ */
+char *strncat(char *__dest, const char *__src, size_t n)
+{
+ while(*__dest++);
+ while(*__src && n-- >= 1)
+ *__dest++ = *__src++;
+ *__dest = '\0';
+ return __dest;
+}
+
+/**
+ * \fn int strcmp(const char *str1, const char *str2)
* \brief Compare two strings return the difference between
* the first non-matching characters.
*/
-int strcmp(char *str1, char *str2)
+int strcmp(const char *str1, const char *str2)
{
while(*str1 && *str1 == *str2)
str1++, str2++;
}
/**
- * \fn int strncmp(char *Str1, char *Str2, size_t num)
+ * \fn int strncmp(const char *Str1, const char *Str2, size_t num)
* \brief Compare strings \a Str1 and \a Str2 to a maximum of \a num characters
*/
-int strncmp(char *Str1, char *Str2, size_t num)
+int strncmp(const char *Str1, const char *Str2, size_t num)
{
- while(num-- && *Str1 && *Str1 == *Str2)
+ if(num == 0) return 0; // TODO: Check what should officially happen here
+ while(--num && *Str1 && *Str1 == *Str2)
Str1++, Str2++;
return *Str1-*Str2;
}
+#if 0
/**
- * \fn int strpos8(char *str, Uint32 search)
+ * \fn char *strdup(const char *Str)
+ * \brief Duplicates a string
+ */
+char *strdup(const char *Str)
+{
+ char *ret;
+ ret = malloc(strlen(Str)+1);
+ if( !ret ) return NULL;
+ strcpy(ret, Str);
+ return ret;
+}
+#else
+
+/**
+ * \fn char *_strdup(const char *File, int Line, const char *Str)
+ * \brief Duplicates a string
+ */
+char *_strdup(const char *File, int Line, const char *Str)
+{
+ char *ret;
+ ret = Heap_Allocate(File, Line, strlen(Str)+1);
+ if( !ret ) return NULL;
+ strcpy(ret, Str);
+ return ret;
+}
+#endif
+
+/**
+ * \brief Split a string using the passed character
+ * \return NULL terminated array of strings on the heap
+ * \param __str String to split
+ * \param __ch Character to split by
+ */
+char **str_split(const char *__str, char __ch)
+{
+ int i, j;
+ int len = 1;
+ char **ret;
+ char *start;
+
+ for( i = 0; __str[i]; i++ )
+ {
+ if(__str[i] == __ch)
+ len ++;
+ }
+
+ ret = malloc( sizeof(char*)*(len+1) + (i + 1) );
+ if( !ret ) return NULL;
+
+ j = 1;
+ start = (char *)&ret[len+1];
+ ret[0] = start;
+ for( i = 0; __str[i]; i++ )
+ {
+ if(__str[i] == __ch) {
+ *start++ = '\0';
+ ret[j++] = start;
+ }
+ else {
+ *start++ = __str[i];
+ }
+ }
+ *start = '\0';
+ ret[j] = NULL;
+
+ return ret;
+}
+
+/**
+ * \fn int DivUp(int num, int dem)
+ * \brief Divide two numbers, rounding up
+ * \param num Numerator
+ * \param dem Denominator
+ */
+int DivUp(int num, int dem)
+{
+ return (num+dem-1)/dem;
+}
+
+/**
+ * \fn int strpos8(const char *str, Uint32 search)
* \brief Search a string for a UTF-8 character
*/
-int strpos8(char *str, Uint32 Search)
+int strpos8(const char *str, Uint32 Search)
{
int pos;
Uint32 val = 0;
* \fn int ReadUTF8(Uint8 *str, Uint32 *Val)
* \brief Read a UTF-8 character from a string
*/
-int ReadUTF8(Uint8 *str, Uint32 *Val)
+int ReadUTF8(const Uint8 *str, Uint32 *Val)
{
*Val = 0xFFFD; // Assume invalid character
{
// ASCII
if( Val < 128 ) {
- *str = Val;
+ if( str ) {
+ *str = Val;
+ }
return 1;
}
// Two Byte
if( Val < 0x8000 ) {
- *str = 0xC0 | (Val >> 6);
- str ++;
- *str = 0x80 | (Val & 0x3F);
+ if( str ) {
+ *str++ = 0xC0 | (Val >> 6);
+ *str++ = 0x80 | (Val & 0x3F);
+ }
return 2;
}
// Three Byte
if( Val < 0x10000 ) {
- *str = 0xE0 | (Val >> 12);
- str ++;
- *str = 0x80 | ((Val >> 6) & 0x3F);
- str ++;
- *str = 0x80 | (Val & 0x3F);
+ if( str ) {
+ *str++ = 0xE0 | (Val >> 12);
+ *str++ = 0x80 | ((Val >> 6) & 0x3F);
+ *str++ = 0x80 | (Val & 0x3F);
+ }
return 3;
}
// Four Byte
if( Val < 0x110000 ) {
- *str = 0xF0 | (Val >> 18);
- str ++;
- *str = 0x80 | ((Val >> 12) & 0x3F);
- str ++;
- *str = 0x80 | ((Val >> 6) & 0x3F);
- str ++;
- *str = 0x80 | (Val & 0x3F);
+ if( str ) {
+ *str++ = 0xF0 | (Val >> 18);
+ *str++ = 0x80 | ((Val >> 12) & 0x3F);
+ *str++ = 0x80 | ((Val >> 6) & 0x3F);
+ *str++ = 0x80 | (Val & 0x3F);
+ }
return 4;
}
* \fn Uint64 timestamp(int sec, int mins, int hrs, int day, int month, int year)
* \brief Converts a date into an Acess Timestamp
*/
-Sint64 timestamp(int sec, int mins, int hrs, int day, int month, int year)
+Sint64 timestamp(int sec, int min, int hrs, int day, int month, int year)
{
+ int is_leap;
Sint64 stamp;
- stamp = sec;
- stamp += mins*60;
- stamp += hrs*3600;
-
- stamp += day*3600*24;
- stamp += month*DAYS_BEFORE[month]*3600*24;
- if( (
- ((year&3) == 0 || year%100 != 0)
- || (year%100 == 0 && ((year/100)&3) == 0)
- ) && month > 1) // Leap year and after feb
- stamp += 3600*24;
+
+ if( !(0 <= sec && sec < 60) ) return 0;
+ if( !(0 <= min && min < 60) ) return 0;
+ if( !(0 <= hrs && hrs < 24) ) return 0;
+ if( !(0 <= day && day < 31) ) return 0;
+ if( !(0 <= month && month < 12) ) return 0;
+
+ stamp = DAYS_BEFORE[month] + day;
+
+ // Every 4 years
+ // - every 100 years
+ // + every 400 years
+ is_leap = (year % 4 == 0) - (year % 100 == 0) + (year % 400 == 0);
+ ASSERT(is_leap == 0 || is_leap == 1);
+
+ if( is_leap && month > 1 ) // Leap year and after feb
+ stamp += 1;
+
+ // Get seconds before the first of specified year
+ year -= 2000; // Base off Y2K
+ // base year days + total leap year days
+ stamp += year*365 + (year/400) - (year/100) + (year/4);
- stamp += ((365*4+1) * ((year-2000)&~3)) * 3600*24; // Foour Year Segments
- stamp += ((year-2000)&3) * 365*3600*24; // Inside four year segment
+ stamp *= 3600*24;
stamp += UNIX_TO_2K;
+ stamp += sec;
+ stamp += min*60;
+ stamp += hrs*3600;
return stamp * 1000;
}
+void format_date(tTime TS, int *year, int *month, int *day, int *hrs, int *mins, int *sec, int *ms)
+{
+ int is_leap = 0, i;
+
+ auto Sint64 DivMod64(Sint64 N, Sint64 D, Sint64 *R);
+
+ Sint64 DivMod64(Sint64 N, Sint64 D, Sint64 *R)
+ {
+ int sign = (N < 0) != (D < 0);
+ if(N < 0) N = -N;
+ if(D < 0) D = -D;
+ if(sign)
+ return -DivMod64U(N, D, (Uint64*)R);
+ else
+ return DivMod64U(N, D, (Uint64*)R);
+ }
+
+ // Get time
+ // TODO: Leap-seconds?
+ {
+ Sint64 rem;
+ TS = DivMod64( TS, 1000, &rem );
+ *ms = rem;
+ TS = DivMod64( TS, 60, &rem );
+ *sec = rem;
+ TS = DivMod64( TS, 60, &rem );
+ *mins = rem;
+ TS = DivMod64( TS, 24, &rem );
+ *hrs = rem;
+ }
+
+ // Adjust to Y2K
+ TS -= UNIX_TO_2K/(3600*24);
+
+ // Year (400 yr blocks) - (400/4-3) leap years
+ *year = 400 * DivMod64( TS, 365*400 + (400/4-3), &TS );
+ if( TS < 366 ) // First year in 400 is a leap
+ is_leap = 1;
+ else
+ {
+ // 100 yr blocks - 100/4-1 leap years
+ *year += 100 * DivMod64( TS, 365*100 + (100/4-1), &TS );
+ if( TS < 366 ) // First year in 100 isn't a leap
+ is_leap = 0;
+ else
+ {
+ *year += 4 * DivMod64( TS, 365*4 + 1, &TS );
+ if( TS < 366 ) // First year in 4 is a leap
+ is_leap = 1;
+ else
+ {
+ *year += DivMod64( TS, 356, &TS );
+ }
+ }
+ }
+ *year += 2000;
+
+ ASSERT(TS >= 0);
+
+ *day = 0;
+ // Month (if after the first of march, which is 29 Feb in a leap year)
+ if( is_leap && TS > DAYS_BEFORE[2] ) {
+ TS -= 1; // Shifts 29 Feb to 28 Feb
+ *day = 1;
+ }
+ // Get what month it is
+ for( i = 0; i < 12; i ++ ) {
+ if( TS < DAYS_BEFORE[i] )
+ break;
+ }
+ *month = i - 1;
+ // Get day
+ TS -= DAYS_BEFORE[i-1];
+ *day += TS; // Plus offset from leap handling above
+}
+
/**
- * \fn Uint rand()
+ * \fn int rand()
* \brief Pseudo random number generator
- * \note Unknown effectiveness (made up on the spot)
*/
-Uint rand()
+int rand(void)
{
#if 0
- static Uint randomState = RANDOM_SEED;
- Uint ret = randomState;
- int roll = randomState & 31;
- randomState = (randomState << roll) | (randomState >> (32-roll));
- randomState ^= 0x9A3C5E78;
- return ret;
+ static Uint state = RANDOM_SEED;
+ Uint old = state;
+ // Get the next state value
+ giRandomState = (RANDOM_A*state + RANDOM_C);
+ // Check if it has changed, and if it hasn't, change it
+ if(state == old) state += RANDOM_SPRUCE;
+ return state;
#else
- static Uint randomState = RANDOM_SEED;
- return randomState = (RANDOM_A*randomState + RANDOM_C) & 0xFFFFFFFF;
+ // http://en.wikipedia.org/wiki/Xorshift
+ // 2010-10-03
+ static Uint32 x = 123456789;
+ static Uint32 y = 362436069;
+ static Uint32 z = 521288629;
+ static Uint32 w = 88675123;
+ Uint32 t;
+
+ t = x ^ (x << 11);
+ x = y; y = z; z = w;
+ return w = w ^ (w >> 19) ^ t ^ (t >> 8);
#endif
}
-EXPORT(timestamp);
-EXPORT(ReadUTF8);
+/* *
+ * \name Memory Validation
+ * \{
+ */
+/**
+ * \brief Checks if a string resides fully in valid memory
+ */
+int CheckString(const char *String)
+{
+ tVAddr addr;
+ int bUser;
+
+ addr = (tVAddr)String;
+
+ if( !MM_GetPhysAddr( addr ) )
+ return 0;
+
+ // Check 1st page
+ bUser = MM_IsUser( addr );
+
+ while( *(char*)addr )
+ {
+ if( (addr & (PAGE_SIZE-1)) == 0 )
+ {
+ if(bUser && !MM_IsUser(addr) )
+ return 0;
+ if(!bUser && !MM_GetPhysAddr(addr) )
+ return 0;
+ }
+ addr ++;
+ }
+ return 1;
+}
+
+/**
+ * \brief Check if a sized memory region is valid memory
+ * \return Boolean success
+ */
+int CheckMem(const void *Mem, int NumBytes)
+{
+ return MM_IsValidBuffer( (tVAddr)Mem, NumBytes );
+}
+/* *
+ * \}
+ */
+
+/**
+ * \brief Search a string array for \a Needle
+ * \note Helper function for eTplDrv_IOCtl::DRV_IOCTL_LOOKUP
+ */
+int ModUtil_LookupString(const char **Array, const char *Needle)
+{
+ int i;
+ if( !CheckString(Needle) ) return -1;
+ for( i = 0; Array[i]; i++ )
+ {
+ if(strcmp(Array[i], Needle) == 0) return i;
+ }
+ return -1;
+}
+
+int ModUtil_SetIdent(char *Dest, const char *Value)
+{
+ if( !CheckMem(Dest, 32) ) return -1;
+ strncpy(Dest, Value, 32);
+ return 1;
+}
+
+int Hex(char *Dest, size_t Size, const Uint8 *SourceData)
+{
+ int i;
+ for( i = 0; i < Size; i ++ )
+ {
+ sprintf(Dest + i*2, "%02x", SourceData[i]);
+ }
+ return i*2;
+}
+
+/**
+ * \brief Convert a string of hexadecimal digits into a byte stream
+ */
+int UnHex(Uint8 *Dest, size_t DestSize, const char *SourceString)
+{
+ int i;
+
+ for( i = 0; i < DestSize*2; i += 2 )
+ {
+ Uint8 val = 0;
+
+ if(SourceString[i] == '\0') break;
+
+ if('0' <= SourceString[i] && SourceString[i] <= '9')
+ val |= (SourceString[i]-'0') << 4;
+ else if('A' <= SourceString[i] && SourceString[i] <= 'F')
+ val |= (SourceString[i]-'A'+10) << 4;
+ else if('a' <= SourceString[i] && SourceString[i] <= 'f')
+ val |= (SourceString[i]-'a'+10) << 4;
+
+ if(SourceString[i+1] == '\0') break;
+
+ if('0' <= SourceString[i+1] && SourceString[i+1] <= '9')
+ val |= (SourceString[i+1] - '0');
+ else if('A' <= SourceString[i+1] && SourceString[i+1] <= 'F')
+ val |= (SourceString[i+1] - 'A' + 10);
+ else if('a' <= SourceString[i+1] && SourceString[i+1] <= 'f')
+ val |= (SourceString[i+1] - 'a' + 10);
+
+ Dest[i/2] = val;
+ }
+ return i/2;
+}
+
+Uint16 SwapEndian16(Uint16 Val)
+{
+ return ((Val&0xFF)<<8) | ((Val>>8)&0xFF);
+}
+Uint32 SwapEndian32(Uint32 Val)
+{
+ return ((Val&0xFF)<<24) | ((Val&0xFF00)<<8) | ((Val>>8)&0xFF00) | ((Val>>24)&0xFF);
+}
+
+void *memmove(void *__dest, const void *__src, size_t len)
+{
+ size_t block_size;
+ char *dest = __dest;
+ const char *src = __src;
+ void *ret = __dest;
+
+ if( len == 0 || dest == src )
+ return dest;
+
+ if( (tVAddr)dest > (tVAddr)src + len )
+ return memcpy(dest, src, len);
+ if( (tVAddr)dest + len < (tVAddr)src )
+ return memcpy(dest, src, len);
+
+ // NOTE: Assumes memcpy works forward
+ if( (tVAddr)dest < (tVAddr)src )
+ return memcpy(dest, src, len);
+
+ if( (tVAddr)dest < (tVAddr)src )
+ block_size = (tVAddr)src - (tVAddr)dest;
+ else
+ block_size = (tVAddr)dest - (tVAddr)src;
+
+ block_size &= ~0xF;
+
+ while(len >= block_size)
+ {
+ memcpy(dest, src, block_size);
+ len -= block_size;
+ dest += block_size;
+ src += block_size;
+ }
+ memcpy(dest, src, len);
+ return ret;
+
+}
+