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hyung-hwan 2008-04-25 22:50:34 +00:00
parent 9543dea272
commit 8db57247cc
1 changed files with 42 additions and 6 deletions
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48
ase/cmn/mem.c
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@ -1,5 +1,5 @@
/*
* $Id: mem.c 169 2008-04-25 04:27:37Z baconevi $
* $Id: mem.c 170 2008-04-25 04:50:34Z baconevi $
*
* {License}
*/
@ -8,6 +8,7 @@
#if defined(__SPU__)
#include <spu_intrinsics.h>
#define SPU_VUC_SIZE ASE_SIZEOF(vector unsigned char)
#endif
/*#define IS_UNALIGNED(ptr) (((ase_size_t)ptr)%ASE_SIZEOF(ase_size_t))*/
@ -21,11 +22,45 @@
void* ase_memcpy (void* dst, const void* src, ase_size_t n)
{
#if defined(ASE_BUILD_FOR_SIZE)
ase_byte_t* d = (ase_byte_t*)dst;
ase_byte_t* s = (ase_byte_t*)src;
while (n-- > 0) *d++ = *s++;
return dst;
#elif defined(__SPU__)
ase_byte_t* d;
ase_byte_t* s;
if (n >= ASE_SIZEOF(ase_size_t) &&
(((ase_size_t)dst) & (SPU_VUC_SIZE-1)) == 0 &&
(((ase_size_t)src) & (SPU_VUC_SIZE-1)) == 0)
{
vector unsigned char* du = (vector unsigned char*)dst;
vector unsigned char* su = (vector unsigned char*)src;
do
{
*du++ = *su++;
n -= SPU_VUC_SIZE;
}
while (n >= SPU_VUC_SIZE);
d = (ase_byte_t*)du;
s = (ase_byte_t*)su;
}
else
{
d = (ase_byte_t*)dst;
s = (ase_byte_t*)src;
}
while (n-- > 0) *d++ = *s++;
return dst;
#else
ase_byte_t* d;
ase_byte_t* s;
@ -52,6 +87,7 @@ void* ase_memcpy (void* dst, const void* src, ase_size_t n)
while (n-- > 0) *d++ = *s++;
return dst;
#endif
}
@ -73,16 +109,16 @@ void* ase_memset (void* dst, int val, ase_size_t n)
d = (ase_byte_t*)dst;
/* spu SIMD instructions require 16-byte alignment */
rem = ((ase_size_t)dst) & (ASE_SIZEOF(vector unsigned char)-1);
rem = ((ase_size_t)dst) & (SPU_VUC_SIZE-1);
if (rem > 0)
{
/* handle leading unaligned part */
do { *d++ = (ase_byte_t)val; }
while (n-- > 0 && ++rem < ASE_SIZEOF(vector unsigned char));
while (n-- > 0 && ++rem < SPU_VUC_SIZE);
}
/* do the vector copy */
if (n >= ASE_SIZEOF(vector unsigned char))
if (n >= SPU_VUC_SIZE)
{
/* a vector of 16 unsigned char cells */
vector unsigned char v16;
@ -96,9 +132,9 @@ void* ase_memset (void* dst, int val, ase_size_t n)
do
{
*vd++ = v16;
n -= ASE_SIZEOF(vector unsigned char);
n -= SPU_VUC_SIZE;
}
while (n >= ASE_SIZEOF(vector unsigned char));
while (n >= SPU_VUC_SIZE);
d = (ase_byte_t*)vd;
}