mirror of
https://github.com/facebook/zstd.git
synced 2025-03-07 01:10:04 +02:00
[legacy] Remove FORCE_MEMORY_ACCESS and only use memcpy
Delete unaligned memory access code from the legacy codebase by removing all the non-memcpy functions. We don't care about speed at all for this codebase, only simplicity.
This commit is contained in:
Nick Terrell
Nick Terrell
parent
f31b83ff34
commit
728e73ebb4
@ -190,19 +190,6 @@ typedef signed long long S64;
|
||||
/****************************************************************
|
||||
* Memory I/O
|
||||
*****************************************************************/
|
||||
/* FSE_FORCE_MEMORY_ACCESS : For accessing unaligned memory:
|
||||
* Method 0 : always use `memcpy()`. Safe and portable.
|
||||
* Method 1 : Use compiler extension to set unaligned access.
|
||||
* Method 2 : direct access. This method is portable but violate C standard.
|
||||
* It can generate buggy code on targets depending on alignment.
|
||||
* Default : method 1 if supported, else method 0
|
||||
*/
|
||||
#ifndef FSE_FORCE_MEMORY_ACCESS /* can be defined externally, on command line for example */
|
||||
# ifdef __GNUC__
|
||||
# define FSE_FORCE_MEMORY_ACCESS 1
|
||||
# endif
|
||||
#endif
|
||||
|
||||
|
||||
static unsigned FSE_32bits(void)
|
||||
{
|
||||
@ -215,24 +202,6 @@ static unsigned FSE_isLittleEndian(void)
|
||||
return one.c[0];
|
||||
}
|
||||
|
||||
#if defined(FSE_FORCE_MEMORY_ACCESS) && (FSE_FORCE_MEMORY_ACCESS==2)
|
||||
|
||||
static U16 FSE_read16(const void* memPtr) { return *(const U16*) memPtr; }
|
||||
static U32 FSE_read32(const void* memPtr) { return *(const U32*) memPtr; }
|
||||
static U64 FSE_read64(const void* memPtr) { return *(const U64*) memPtr; }
|
||||
|
||||
#elif defined(FSE_FORCE_MEMORY_ACCESS) && (FSE_FORCE_MEMORY_ACCESS==1)
|
||||
|
||||
typedef __attribute__((aligned(1))) U16 unalign16;
|
||||
typedef __attribute__((aligned(1))) U32 unalign32;
|
||||
typedef __attribute__((aligned(1))) U64 unalign64;
|
||||
|
||||
static U16 FSE_read16(const void* ptr) { return *(const unalign16*)ptr; }
|
||||
static U32 FSE_read32(const void* ptr) { return *(const unalign32*)ptr; }
|
||||
static U64 FSE_read64(const void* ptr) { return *(const unalign64*)ptr; }
|
||||
|
||||
#else
|
||||
|
||||
static U16 FSE_read16(const void* memPtr)
|
||||
{
|
||||
U16 val; memcpy(&val, memPtr, sizeof(val)); return val;
|
||||
@ -248,8 +217,6 @@ static U64 FSE_read64(const void* memPtr)
|
||||
U64 val; memcpy(&val, memPtr, sizeof(val)); return val;
|
||||
}
|
||||
|
||||
#endif /* FSE_FORCE_MEMORY_ACCESS */
|
||||
|
||||
static U16 FSE_readLE16(const void* memPtr)
|
||||
{
|
||||
if (FSE_isLittleEndian())
|
||||
|
||||
@ -115,18 +115,6 @@ extern "C" {
|
||||
/****************************************************************
|
||||
* Memory I/O
|
||||
*****************************************************************/
|
||||
/* MEM_FORCE_MEMORY_ACCESS : For accessing unaligned memory:
|
||||
* Method 0 : always use `memcpy()`. Safe and portable.
|
||||
* Method 1 : Use compiler extension to set unaligned access.
|
||||
* Method 2 : direct access. This method is portable but violate C standard.
|
||||
* It can generate buggy code on targets depending on alignment.
|
||||
* Default : method 1 if supported, else method 0
|
||||
*/
|
||||
#ifndef MEM_FORCE_MEMORY_ACCESS /* can be defined externally, on command line for example */
|
||||
# ifdef __GNUC__
|
||||
# define MEM_FORCE_MEMORY_ACCESS 1
|
||||
# endif
|
||||
#endif
|
||||
|
||||
MEM_STATIC unsigned MEM_32bits(void) { return sizeof(void*)==4; }
|
||||
MEM_STATIC unsigned MEM_64bits(void) { return sizeof(void*)==8; }
|
||||
@ -137,33 +125,6 @@ MEM_STATIC unsigned MEM_isLittleEndian(void)
|
||||
return one.c[0];
|
||||
}
|
||||
|
||||
#if defined(MEM_FORCE_MEMORY_ACCESS) && (MEM_FORCE_MEMORY_ACCESS==2)
|
||||
|
||||
/* violates C standard on structure alignment.
|
||||
Only use if no other choice to achieve best performance on target platform */
|
||||
MEM_STATIC U16 MEM_read16(const void* memPtr) { return *(const U16*) memPtr; }
|
||||
MEM_STATIC U32 MEM_read32(const void* memPtr) { return *(const U32*) memPtr; }
|
||||
MEM_STATIC U64 MEM_read64(const void* memPtr) { return *(const U64*) memPtr; }
|
||||
|
||||
MEM_STATIC void MEM_write16(void* memPtr, U16 value) { *(U16*)memPtr = value; }
|
||||
|
||||
#elif defined(MEM_FORCE_MEMORY_ACCESS) && (MEM_FORCE_MEMORY_ACCESS==1)
|
||||
|
||||
typedef __attribute__((aligned(1))) U16 unalign16;
|
||||
typedef __attribute__((aligned(1))) U32 unalign32;
|
||||
typedef __attribute__((aligned(1))) U64 unalign64;
|
||||
|
||||
MEM_STATIC U16 MEM_read16(const void* ptr) { return *(const unalign16*)ptr; }
|
||||
MEM_STATIC U32 MEM_read32(const void* ptr) { return *(const unalign32*)ptr; }
|
||||
MEM_STATIC U64 MEM_read64(const void* ptr) { return *(const unalign64*)ptr; }
|
||||
|
||||
MEM_STATIC void MEM_write16(void* memPtr, U16 value) { *(unalign16*)memPtr = value; }
|
||||
|
||||
#else
|
||||
|
||||
/* default method, safe and standard.
|
||||
can sometimes prove slower */
|
||||
|
||||
MEM_STATIC U16 MEM_read16(const void* memPtr)
|
||||
{
|
||||
U16 val; memcpy(&val, memPtr, sizeof(val)); return val;
|
||||
@ -184,9 +145,6 @@ MEM_STATIC void MEM_write16(void* memPtr, U16 value)
|
||||
memcpy(memPtr, &value, sizeof(value));
|
||||
}
|
||||
|
||||
#endif /* MEM_FORCE_MEMORY_ACCESS */
|
||||
|
||||
|
||||
MEM_STATIC U16 MEM_readLE16(const void* memPtr)
|
||||
{
|
||||
if (MEM_isLittleEndian())
|
||||
|
||||
@ -116,18 +116,6 @@ extern "C" {
|
||||
/****************************************************************
|
||||
* Memory I/O
|
||||
*****************************************************************/
|
||||
/* MEM_FORCE_MEMORY_ACCESS : For accessing unaligned memory:
|
||||
* Method 0 : always use `memcpy()`. Safe and portable.
|
||||
* Method 1 : Use compiler extension to set unaligned access.
|
||||
* Method 2 : direct access. This method is portable but violate C standard.
|
||||
* It can generate buggy code on targets depending on alignment.
|
||||
* Default : method 1 if supported, else method 0
|
||||
*/
|
||||
#ifndef MEM_FORCE_MEMORY_ACCESS /* can be defined externally, on command line for example */
|
||||
# ifdef __GNUC__
|
||||
# define MEM_FORCE_MEMORY_ACCESS 1
|
||||
# endif
|
||||
#endif
|
||||
|
||||
MEM_STATIC unsigned MEM_32bits(void) { return sizeof(void*)==4; }
|
||||
MEM_STATIC unsigned MEM_64bits(void) { return sizeof(void*)==8; }
|
||||
@ -138,33 +126,6 @@ MEM_STATIC unsigned MEM_isLittleEndian(void)
|
||||
return one.c[0];
|
||||
}
|
||||
|
||||
#if defined(MEM_FORCE_MEMORY_ACCESS) && (MEM_FORCE_MEMORY_ACCESS==2)
|
||||
|
||||
/* violates C standard on structure alignment.
|
||||
Only use if no other choice to achieve best performance on target platform */
|
||||
MEM_STATIC U16 MEM_read16(const void* memPtr) { return *(const U16*) memPtr; }
|
||||
MEM_STATIC U32 MEM_read32(const void* memPtr) { return *(const U32*) memPtr; }
|
||||
MEM_STATIC U64 MEM_read64(const void* memPtr) { return *(const U64*) memPtr; }
|
||||
|
||||
MEM_STATIC void MEM_write16(void* memPtr, U16 value) { *(U16*)memPtr = value; }
|
||||
|
||||
#elif defined(MEM_FORCE_MEMORY_ACCESS) && (MEM_FORCE_MEMORY_ACCESS==1)
|
||||
|
||||
typedef __attribute__((aligned(1))) U16 unalign16;
|
||||
typedef __attribute__((aligned(1))) U32 unalign32;
|
||||
typedef __attribute__((aligned(1))) U64 unalign64;
|
||||
|
||||
MEM_STATIC U16 MEM_read16(const void* ptr) { return *(const unalign16*)ptr; }
|
||||
MEM_STATIC U32 MEM_read32(const void* ptr) { return *(const unalign32*)ptr; }
|
||||
MEM_STATIC U64 MEM_read64(const void* ptr) { return *(const unalign64*)ptr; }
|
||||
|
||||
MEM_STATIC void MEM_write16(void* memPtr, U16 value) { *(unalign16*)memPtr = value; }
|
||||
|
||||
#else
|
||||
|
||||
/* default method, safe and standard.
|
||||
can sometimes prove slower */
|
||||
|
||||
MEM_STATIC U16 MEM_read16(const void* memPtr)
|
||||
{
|
||||
U16 val; memcpy(&val, memPtr, sizeof(val)); return val;
|
||||
@ -185,10 +146,6 @@ MEM_STATIC void MEM_write16(void* memPtr, U16 value)
|
||||
memcpy(memPtr, &value, sizeof(value));
|
||||
}
|
||||
|
||||
|
||||
#endif /* MEM_FORCE_MEMORY_ACCESS */
|
||||
|
||||
|
||||
MEM_STATIC U16 MEM_readLE16(const void* memPtr)
|
||||
{
|
||||
if (MEM_isLittleEndian())
|
||||
|
||||
@ -87,18 +87,6 @@ extern "C" {
|
||||
/****************************************************************
|
||||
* Memory I/O
|
||||
*****************************************************************/
|
||||
/* MEM_FORCE_MEMORY_ACCESS : For accessing unaligned memory:
|
||||
* Method 0 : always use `memcpy()`. Safe and portable.
|
||||
* Method 1 : Use compiler extension to set unaligned access.
|
||||
* Method 2 : direct access. This method is portable but violate C standard.
|
||||
* It can generate buggy code on targets depending on alignment.
|
||||
* Default : method 1 if supported, else method 0
|
||||
*/
|
||||
#ifndef MEM_FORCE_MEMORY_ACCESS /* can be defined externally, on command line for example */
|
||||
# ifdef __GNUC__
|
||||
# define MEM_FORCE_MEMORY_ACCESS 1
|
||||
# endif
|
||||
#endif
|
||||
|
||||
MEM_STATIC unsigned MEM_32bits(void) { return sizeof(void*)==4; }
|
||||
MEM_STATIC unsigned MEM_64bits(void) { return sizeof(void*)==8; }
|
||||
@ -109,33 +97,6 @@ MEM_STATIC unsigned MEM_isLittleEndian(void)
|
||||
return one.c[0];
|
||||
}
|
||||
|
||||
#if defined(MEM_FORCE_MEMORY_ACCESS) && (MEM_FORCE_MEMORY_ACCESS==2)
|
||||
|
||||
/* violates C standard on structure alignment.
|
||||
Only use if no other choice to achieve best performance on target platform */
|
||||
MEM_STATIC U16 MEM_read16(const void* memPtr) { return *(const U16*) memPtr; }
|
||||
MEM_STATIC U32 MEM_read32(const void* memPtr) { return *(const U32*) memPtr; }
|
||||
MEM_STATIC U64 MEM_read64(const void* memPtr) { return *(const U64*) memPtr; }
|
||||
|
||||
MEM_STATIC void MEM_write16(void* memPtr, U16 value) { *(U16*)memPtr = value; }
|
||||
|
||||
#elif defined(MEM_FORCE_MEMORY_ACCESS) && (MEM_FORCE_MEMORY_ACCESS==1)
|
||||
|
||||
typedef __attribute__((aligned(1))) U16 unalign16;
|
||||
typedef __attribute__((aligned(1))) U32 unalign32;
|
||||
typedef __attribute__((aligned(1))) U64 unalign64;
|
||||
|
||||
MEM_STATIC U16 MEM_read16(const void* ptr) { return *(const unalign16*)ptr; }
|
||||
MEM_STATIC U32 MEM_read32(const void* ptr) { return *(const unalign32*)ptr; }
|
||||
MEM_STATIC U64 MEM_read64(const void* ptr) { return *(const unalign64*)ptr; }
|
||||
|
||||
MEM_STATIC void MEM_write16(void* memPtr, U16 value) { *(unalign16*)memPtr = value; }
|
||||
|
||||
#else
|
||||
|
||||
/* default method, safe and standard.
|
||||
can sometimes prove slower */
|
||||
|
||||
MEM_STATIC U16 MEM_read16(const void* memPtr)
|
||||
{
|
||||
U16 val; memcpy(&val, memPtr, sizeof(val)); return val;
|
||||
@ -156,9 +117,6 @@ MEM_STATIC void MEM_write16(void* memPtr, U16 value)
|
||||
memcpy(memPtr, &value, sizeof(value));
|
||||
}
|
||||
|
||||
#endif /* MEM_FORCE_MEMORY_ACCESS */
|
||||
|
||||
|
||||
MEM_STATIC U16 MEM_readLE16(const void* memPtr)
|
||||
{
|
||||
if (MEM_isLittleEndian())
|
||||
|
||||
@ -106,18 +106,6 @@ extern "C" {
|
||||
/*-**************************************************************
|
||||
* Memory I/O
|
||||
*****************************************************************/
|
||||
/* MEM_FORCE_MEMORY_ACCESS : For accessing unaligned memory:
|
||||
* Method 0 : always use `memcpy()`. Safe and portable.
|
||||
* Method 1 : Use compiler extension to set unaligned access.
|
||||
* Method 2 : direct access. This method is portable but violate C standard.
|
||||
* It can generate buggy code on targets depending on alignment.
|
||||
* Default : method 1 if supported, else method 0
|
||||
*/
|
||||
#ifndef MEM_FORCE_MEMORY_ACCESS /* can be defined externally, on command line for example */
|
||||
# ifdef __GNUC__
|
||||
# define MEM_FORCE_MEMORY_ACCESS 1
|
||||
# endif
|
||||
#endif
|
||||
|
||||
MEM_STATIC unsigned MEM_32bits(void) { return sizeof(void*)==4; }
|
||||
MEM_STATIC unsigned MEM_64bits(void) { return sizeof(void*)==8; }
|
||||
@ -128,37 +116,6 @@ MEM_STATIC unsigned MEM_isLittleEndian(void)
|
||||
return one.c[0];
|
||||
}
|
||||
|
||||
#if defined(MEM_FORCE_MEMORY_ACCESS) && (MEM_FORCE_MEMORY_ACCESS==2)
|
||||
|
||||
/* violates C standard, by lying on structure alignment.
|
||||
Only use if no other choice to achieve best performance on target platform */
|
||||
MEM_STATIC U16 MEM_read16(const void* memPtr) { return *(const U16*) memPtr; }
|
||||
MEM_STATIC U32 MEM_read32(const void* memPtr) { return *(const U32*) memPtr; }
|
||||
MEM_STATIC U64 MEM_read64(const void* memPtr) { return *(const U64*) memPtr; }
|
||||
|
||||
MEM_STATIC void MEM_write16(void* memPtr, U16 value) { *(U16*)memPtr = value; }
|
||||
MEM_STATIC void MEM_write32(void* memPtr, U32 value) { *(U32*)memPtr = value; }
|
||||
MEM_STATIC void MEM_write64(void* memPtr, U64 value) { *(U64*)memPtr = value; }
|
||||
|
||||
#elif defined(MEM_FORCE_MEMORY_ACCESS) && (MEM_FORCE_MEMORY_ACCESS==1)
|
||||
|
||||
typedef __attribute__((aligned(1))) U16 unalign16;
|
||||
typedef __attribute__((aligned(1))) U32 unalign32;
|
||||
typedef __attribute__((aligned(1))) U64 unalign64;
|
||||
|
||||
MEM_STATIC U16 MEM_read16(const void* ptr) { return *(const unalign16*)ptr; }
|
||||
MEM_STATIC U32 MEM_read32(const void* ptr) { return *(const unalign32*)ptr; }
|
||||
MEM_STATIC U64 MEM_read64(const void* ptr) { return *(const unalign64*)ptr; }
|
||||
|
||||
MEM_STATIC void MEM_write16(void* memPtr, U16 value) { *(unalign16*)memPtr = value; }
|
||||
MEM_STATIC void MEM_write32(void* memPtr, U32 value) { *(unalign32*)memPtr = value; }
|
||||
MEM_STATIC void MEM_write64(void* memPtr, U64 value) { *(unalign64*)memPtr = value; }
|
||||
|
||||
#else
|
||||
|
||||
/* default method, safe and standard.
|
||||
can sometimes prove slower */
|
||||
|
||||
MEM_STATIC U16 MEM_read16(const void* memPtr)
|
||||
{
|
||||
U16 val; memcpy(&val, memPtr, sizeof(val)); return val;
|
||||
@ -189,9 +146,6 @@ MEM_STATIC void MEM_write64(void* memPtr, U64 value)
|
||||
memcpy(memPtr, &value, sizeof(value));
|
||||
}
|
||||
|
||||
#endif /* MEM_FORCE_MEMORY_ACCESS */
|
||||
|
||||
|
||||
MEM_STATIC U16 MEM_readLE16(const void* memPtr)
|
||||
{
|
||||
if (MEM_isLittleEndian())
|
||||
|
||||
@ -108,18 +108,6 @@ extern "C" {
|
||||
/*-**************************************************************
|
||||
* Memory I/O
|
||||
*****************************************************************/
|
||||
/* MEM_FORCE_MEMORY_ACCESS : For accessing unaligned memory:
|
||||
* Method 0 : always use `memcpy()`. Safe and portable.
|
||||
* Method 1 : Use compiler extension to set unaligned access.
|
||||
* Method 2 : direct access. This method is portable but violate C standard.
|
||||
* It can generate buggy code on targets depending on alignment.
|
||||
* Default : method 1 if supported, else method 0
|
||||
*/
|
||||
#ifndef MEM_FORCE_MEMORY_ACCESS /* can be defined externally, on command line for example */
|
||||
# ifdef __GNUC__
|
||||
# define MEM_FORCE_MEMORY_ACCESS 1
|
||||
# endif
|
||||
#endif
|
||||
|
||||
MEM_STATIC unsigned MEM_32bits(void) { return sizeof(size_t)==4; }
|
||||
MEM_STATIC unsigned MEM_64bits(void) { return sizeof(size_t)==8; }
|
||||
@ -130,33 +118,6 @@ MEM_STATIC unsigned MEM_isLittleEndian(void)
|
||||
return one.c[0];
|
||||
}
|
||||
|
||||
#if defined(MEM_FORCE_MEMORY_ACCESS) && (MEM_FORCE_MEMORY_ACCESS==2)
|
||||
|
||||
/* violates C standard, by lying on structure alignment.
|
||||
Only use if no other choice to achieve best performance on target platform */
|
||||
MEM_STATIC U16 MEM_read16(const void* memPtr) { return *(const U16*) memPtr; }
|
||||
MEM_STATIC U32 MEM_read32(const void* memPtr) { return *(const U32*) memPtr; }
|
||||
MEM_STATIC U64 MEM_read64(const void* memPtr) { return *(const U64*) memPtr; }
|
||||
|
||||
MEM_STATIC void MEM_write16(void* memPtr, U16 value) { *(U16*)memPtr = value; }
|
||||
|
||||
#elif defined(MEM_FORCE_MEMORY_ACCESS) && (MEM_FORCE_MEMORY_ACCESS==1)
|
||||
|
||||
typedef __attribute__((aligned(1))) U16 unalign16;
|
||||
typedef __attribute__((aligned(1))) U32 unalign32;
|
||||
typedef __attribute__((aligned(1))) U64 unalign64;
|
||||
|
||||
MEM_STATIC U16 MEM_read16(const void* ptr) { return *(const unalign16*)ptr; }
|
||||
MEM_STATIC U32 MEM_read32(const void* ptr) { return *(const unalign32*)ptr; }
|
||||
MEM_STATIC U64 MEM_read64(const void* ptr) { return *(const unalign64*)ptr; }
|
||||
|
||||
MEM_STATIC void MEM_write16(void* memPtr, U16 value) { *(unalign16*)memPtr = value; }
|
||||
|
||||
#else
|
||||
|
||||
/* default method, safe and standard.
|
||||
can sometimes prove slower */
|
||||
|
||||
MEM_STATIC U16 MEM_read16(const void* memPtr)
|
||||
{
|
||||
U16 val; memcpy(&val, memPtr, sizeof(val)); return val;
|
||||
@ -177,9 +138,6 @@ MEM_STATIC void MEM_write16(void* memPtr, U16 value)
|
||||
memcpy(memPtr, &value, sizeof(value));
|
||||
}
|
||||
|
||||
|
||||
#endif /* MEM_FORCE_MEMORY_ACCESS */
|
||||
|
||||
MEM_STATIC U32 MEM_swap32(U32 in)
|
||||
{
|
||||
#if defined(_MSC_VER) /* Visual Studio */
|
||||
|
||||
@ -268,18 +268,6 @@ extern "C" {
|
||||
/*-**************************************************************
|
||||
* Memory I/O
|
||||
*****************************************************************/
|
||||
/* MEM_FORCE_MEMORY_ACCESS : For accessing unaligned memory:
|
||||
* Method 0 : always use `memcpy()`. Safe and portable.
|
||||
* Method 1 : Use compiler extension to set unaligned access.
|
||||
* Method 2 : direct access. This method is portable but violate C standard.
|
||||
* It can generate buggy code on targets depending on alignment.
|
||||
* Default : method 1 if supported, else method 0
|
||||
*/
|
||||
#ifndef MEM_FORCE_MEMORY_ACCESS /* can be defined externally, on command line for example */
|
||||
# ifdef __GNUC__
|
||||
# define MEM_FORCE_MEMORY_ACCESS 1
|
||||
# endif
|
||||
#endif
|
||||
|
||||
MEM_STATIC unsigned MEM_32bits(void) { return sizeof(size_t)==4; }
|
||||
MEM_STATIC unsigned MEM_64bits(void) { return sizeof(size_t)==8; }
|
||||
@ -290,33 +278,6 @@ MEM_STATIC unsigned MEM_isLittleEndian(void)
|
||||
return one.c[0];
|
||||
}
|
||||
|
||||
#if defined(MEM_FORCE_MEMORY_ACCESS) && (MEM_FORCE_MEMORY_ACCESS==2)
|
||||
|
||||
/* violates C standard, by lying on structure alignment.
|
||||
Only use if no other choice to achieve best performance on target platform */
|
||||
MEM_STATIC U16 MEM_read16(const void* memPtr) { return *(const U16*) memPtr; }
|
||||
MEM_STATIC U32 MEM_read32(const void* memPtr) { return *(const U32*) memPtr; }
|
||||
MEM_STATIC U64 MEM_read64(const void* memPtr) { return *(const U64*) memPtr; }
|
||||
|
||||
MEM_STATIC void MEM_write16(void* memPtr, U16 value) { *(U16*)memPtr = value; }
|
||||
|
||||
#elif defined(MEM_FORCE_MEMORY_ACCESS) && (MEM_FORCE_MEMORY_ACCESS==1)
|
||||
|
||||
typedef __attribute__((aligned(1))) U16 unalign16;
|
||||
typedef __attribute__((aligned(1))) U32 unalign32;
|
||||
typedef __attribute__((aligned(1))) U64 unalign64;
|
||||
|
||||
MEM_STATIC U16 MEM_read16(const void* ptr) { return *(const unalign16*)ptr; }
|
||||
MEM_STATIC U32 MEM_read32(const void* ptr) { return *(const unalign32*)ptr; }
|
||||
MEM_STATIC U64 MEM_read64(const void* ptr) { return *(const unalign64*)ptr; }
|
||||
|
||||
MEM_STATIC void MEM_write16(void* memPtr, U16 value) { *(unalign16*)memPtr = value; }
|
||||
|
||||
#else
|
||||
|
||||
/* default method, safe and standard.
|
||||
can sometimes prove slower */
|
||||
|
||||
MEM_STATIC U16 MEM_read16(const void* memPtr)
|
||||
{
|
||||
U16 val; memcpy(&val, memPtr, sizeof(val)); return val;
|
||||
@ -337,8 +298,6 @@ MEM_STATIC void MEM_write16(void* memPtr, U16 value)
|
||||
memcpy(memPtr, &value, sizeof(value));
|
||||
}
|
||||
|
||||
#endif /* MEM_FORCE_MEMORY_ACCESS */
|
||||
|
||||
MEM_STATIC U32 MEM_swap32(U32 in)
|
||||
{
|
||||
#if defined(_MSC_VER) /* Visual Studio */
|
||||
|
||||
Loading…
x
Reference in New Issue
Block a user