113 lines
1.6 KiB
C
113 lines
1.6 KiB
C
#include "type.h"
|
|
#include "lib/sxtdlib.h"
|
|
|
|
void SXAPI lb_mem_copy(void *src, void *dst, uint64 size)
|
|
{
|
|
if (src == NULL || dst == NULL)
|
|
{
|
|
return;
|
|
}
|
|
char *cSrc = (char *) src;
|
|
char *cDst = (char *) dst;
|
|
while (size--)
|
|
{
|
|
*(cDst++) = *(cSrc++);
|
|
}
|
|
}
|
|
|
|
void SXAPI lb_mem_set(void *src, uint8 const val, uint64 size)
|
|
{
|
|
if (src == NULL)
|
|
{
|
|
return;
|
|
}
|
|
while (size--)
|
|
{
|
|
*(uint8 *) src = val;
|
|
src = (void *) ((uintptr) src + 1);
|
|
}
|
|
}
|
|
|
|
void SXAPI lb_mem_move(void *src, void *dst, uint64 size)
|
|
{
|
|
if (src == NULL || dst == NULL)
|
|
{
|
|
return;
|
|
}
|
|
if (src >= dst)
|
|
{
|
|
lb_mem_copy(src, dst, size);
|
|
return;
|
|
}
|
|
src = (void *) ((uintptr) src + size - 1);
|
|
dst = (void *) ((uintptr) dst + size - 1);
|
|
while (size--)
|
|
{
|
|
*(char *) dst = *(char *) src;
|
|
dst = (void *) ((uintptr) dst - 1);
|
|
src = (void *) ((uintptr) src - 1);
|
|
}
|
|
}
|
|
|
|
//
|
|
// Random Generator
|
|
//
|
|
static uint32 seed = 1;
|
|
static uint32 max = 16777215;
|
|
|
|
uint32 SXAPI lb_rand(void)
|
|
{
|
|
seed = seed * 1103512986 + 29865;
|
|
return (unsigned int) (seed / 65536) % (max + 1);
|
|
}
|
|
|
|
void SXAPI lb_srand(uint32 _seed)
|
|
{
|
|
seed = _seed;
|
|
}
|
|
|
|
void SXAPI lb_mrand(uint32 _max)
|
|
{
|
|
max = _max;
|
|
}
|
|
|
|
//
|
|
// String Library
|
|
//
|
|
|
|
uint64 SXAPI lb_str_len(char const *str)
|
|
{
|
|
uint64 length = 0;
|
|
if (str == NULL)
|
|
{
|
|
return 0;
|
|
}
|
|
while (*str != 0)
|
|
{
|
|
str++;
|
|
length++;
|
|
}
|
|
return length;
|
|
}
|
|
|
|
uint64 SXAPI lb_str_cmp(char const *str1, char const *str2)
|
|
{
|
|
if (str1 == NULL || str2 == NULL)
|
|
{
|
|
return 0;
|
|
}
|
|
uint64 length = lb_str_len(str1);
|
|
if (length != lb_str_len(str2))
|
|
{
|
|
return 0;
|
|
}
|
|
while (length--)
|
|
{
|
|
if (*(str1 + length) != *(str2 + length))
|
|
{
|
|
return 0;
|
|
}
|
|
}
|
|
return 1;
|
|
}
|