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hyung-hwan 2008-04-25 07:08:14 +00:00
parent 3fe679f867
commit ff2f612422
1 changed files with 48 additions and 16 deletions
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64
ase/cmn/mem.c
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@ -1,17 +1,21 @@
/*
* $Id: mem.c 162 2008-04-24 12:33:26Z baconevi $
* $Id: mem.c 163 2008-04-24 13:08:14Z baconevi $
*
* {License}
*/
#include <ase/cmn/mem.h>
/*#define IS_UNALIGNED(ptr) (((ase_size_t)ptr)%sizeof(ase_size_t))*/
#define IS_UNALIGNED(ptr) (((ase_size_t)ptr)&(sizeof(ase_size_t)-1))
#if defined(__SPU__)
#include <spu_intrinsics.h>
#endif
/*#define IS_UNALIGNED(ptr) (((ase_size_t)ptr)%ASE_SIZEOF(ase_size_t))*/
#define IS_UNALIGNED(ptr) (((ase_size_t)ptr)&(ASE_SIZEOF(ase_size_t)-1))
#define IS_ALIGNED(ptr) (!IS_UNALIGNED(ptr))
#define IS_EITHER_UNALIGNED(ptr1,ptr2) \
(((ase_size_t)ptr1|(ase_size_t)ptr2)&(sizeof(ase_size_t)-1))
(((ase_size_t)ptr1|(ase_size_t)ptr2)&(ASE_SIZEOF(ase_size_t)-1))
#define IS_BOTH_ALIGNED(ptr1,ptr2) (!IS_EITHER_UNALIGNED(ptr1,ptr2))
void* ase_memcpy (void* dst, const void* src, ase_size_t n)
@ -21,8 +25,6 @@ void* ase_memcpy (void* dst, const void* src, ase_size_t n)
ase_byte_t* s = (ase_byte_t*)src;
while (n-- > 0) *d++ = *s++;
return dst;
#elif defined(__SPU__)
/* cell spu */
#else
ase_byte_t* d;
ase_byte_t* s;
@ -55,17 +57,53 @@ void* ase_memcpy (void* dst, const void* src, ase_size_t n)
void* ase_memset (void* dst, int val, ase_size_t n)
{
#if defined(ASE_BUILD_FOR_SIZE)
ase_byte_t* d = (ase_byte_t*)dst;
while (n-- > 0) *d++ = (ase_byte_t)val;
return dst;
#elif defined(__SPU__)
/* cell spu */
if ((ase_size_t)dst & (16-1))
/* a vector of 16 unsigned char cells */
vector unsigned char v16;
/* a pointer to such a vector */
vector unsigned char* vd;
ase_size_t rem;
/* fills all 16 unsigned char cells with the same value
* no need to use shift and bitwise-or owing to splats */
v16 = spu_splats((ase_byte_t)val);
/* spu SIMD instructions require 16-byte alignment */
rem = ((ase_size_t)dst) & (ASE_SIZEOF(v16)-1);
if (rem > 0)
{
/* the leading bytes are not aligned */
ase_byte_t* d = (ase_byte_t*)dst;
do
{
*d++ = (ase_byte_t)val;
} while (n-- > 0 && ++rem <= ASE_SIZEOF(v16));
vd = (vector unsigned char*)d;
}
/* do the vector copy */
while (n >= ASE_SIZEOF(v16))
{
*vd++ = v16;
n += ASE_SIZEOF(v16);
}
{
/* handle the trailing bytes */
ase_byte_t* d = (ase_byte_t*)dst;
while (n-- > 0) *d++ = (ase_byte_t)val;
}
return dst;
#else
ase_byte_t* d;
if (n >= ASE_SIZEOF(ase_ulong_t) && IS_ALIGNED(dst))
@ -95,6 +133,7 @@ void* ase_memset (void* dst, int val, ase_size_t n)
while (n-- > 0) *d++ = (ase_byte_t)val;
return dst;
#endif
}
@ -127,13 +166,6 @@ int ase_memcmp (const void* s1, const void* s2, ase_size_t n)
return 0;
#elif defined(__SPU__)
/* cell spu */
if ((ase_size_t)dst & (16-1))
{
/* the leading bytes are not aligned */
}
#else
const ase_byte_t* b1;
const ase_byte_t* b2;