87 lines
1.8 KiB
C
87 lines
1.8 KiB
C
#ifndef __UTILS_H_
|
|
#define __UTILS_H_
|
|
|
|
char *uint2str(char *dest, size_t len, uint64_t num, uint32_t base);
|
|
int str2int(char *str, size_t len, int64_t *res, uint32_t base);
|
|
int isdigit_base(char c, int base);
|
|
|
|
#ifdef ARCH_X86_64
|
|
# define LEGACY_REGS "=Q"
|
|
#else
|
|
# define LEGACY_REGS "=q"
|
|
#endif
|
|
|
|
#if !defined(__INTEL_COMPILER) && (defined(ARCH_X86) || defined(ARCH_X86_64))
|
|
STATIC_INLINE u_int16_t ByteSwap16(u_int16_t x)
|
|
{
|
|
__asm("xchgb %b0,%h0" :
|
|
LEGACY_REGS (x) :
|
|
"0" (x));
|
|
return x;
|
|
}
|
|
#define bswap_16(x) ByteSwap16(x)
|
|
|
|
STATIC_INLINE u_int32_t ByteSwap32(u_int32_t x)
|
|
{
|
|
#if __CPU__ > 386
|
|
__asm("bswap %0":
|
|
"=r" (x) :
|
|
#else
|
|
__asm("xchgb %b0,%h0\n"\
|
|
" rorl $16,%0\n"
|
|
" xchgb %b0,%h0":
|
|
LEGACY_REGS (x) :
|
|
#endif
|
|
"0" (x));
|
|
return x;
|
|
}
|
|
|
|
#define bswap_32(x) ByteSwap32(x)
|
|
|
|
STATIC_INLINE u_int64_t ByteSwap64(u_int64_t x)
|
|
{
|
|
#ifdef ARCH_X86_64
|
|
__asm("bswap %0":
|
|
"=r" (x) :
|
|
"0" (x));
|
|
return x;
|
|
#else
|
|
register union { __extension__ u_int64_t __ll;
|
|
u_int32_t __l[2]; } __x;
|
|
asm("xchgl %0,%1":
|
|
"=r"(__x.__l[0]),"=r"(__x.__l[1]):
|
|
"0"(bswap_32((unsigned long)x)),"1"(bswap_32((unsigned long)(x>>32))));
|
|
return __x.__ll;
|
|
#endif
|
|
}
|
|
#define bswap_64(x) ByteSwap64(x)
|
|
|
|
#else
|
|
|
|
#define bswap_16(x) (((x) & 0x00ff) << 8 | ((x) & 0xff00) >> 8)
|
|
|
|
#ifdef __INTEL_COMPILER
|
|
#define bswap_32(x) _bswap(x)
|
|
#else
|
|
#define bswap_32(x) \
|
|
((((x) & 0xff000000) >> 24) | (((x) & 0x00ff0000) >> 8) | \
|
|
(((x) & 0x0000ff00) << 8) | (((x) & 0x000000ff) << 24))
|
|
#endif
|
|
|
|
STATIC_INLINE u_int64_t ByteSwap64(u_int64_t x)
|
|
{
|
|
union {
|
|
u_int64_t ll;
|
|
u_int32_t l[2];
|
|
} w, r;
|
|
w.ll = x;
|
|
r.l[0] = bswap_32 (w.l[1]);
|
|
r.l[1] = bswap_32 (w.l[0]);
|
|
return r.ll;
|
|
}
|
|
#define bswap_64(x) ByteSwap64(x)
|
|
|
|
#endif
|
|
|
|
#endif
|