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moved to ../libemile/

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Laurent Vivier 2004-12-14 16:23:09 +00:00
parent ad5745956a
commit a68bdea45c
1 changed files with 0 additions and 67 deletions
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67
tools/emile.h
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/*
*
* (c) 2004 Laurent Vivier <LaurentVivier@wanadoo.fr>
*
*/
#include <endian.h>
#if __BYTE_ORDER == __BIG_ENDIAN
/* nothing to do, because m68k is big endian too */
static inline u_int16_t read_short(u_int16_t* addr)
{
return *addr;
}
static inline void write_short(u_int16_t* addr, u_int16_t value)
{
*addr = value;
}
static inline u_int32_t read_long(u_int32_t* addr)
{
return *addr;
}
static inline void write_long(u_int32_t* addr, u_int32_t value)
{
*addr = value;
}
#else /* __BYTE_ORDER == __LITTLE_ENDIAN */
/* little endian (or unknown), read byte by byte to get it in good order */
static inline u_int16_t read_short(u_int16_t* addr)
{
unsigned char* baddr = (unsigned char*)addr;
return ((u_int16_t)(*baddr) << 8) | (u_int16_t)*(baddr+1);
}
static inline void write_short(u_int16_t* addr, u_int16_t value)
{
unsigned char* baddr = (unsigned char*)addr;
*baddr = (unsigned char)(value>>8);
*(baddr+1) = (unsigned char)value;
}
static inline u_int32_t read_long(u_int32_t* addr)
{
u_int16_t* saddr = (u_int16_t*)addr;
return ((u_int32_t)read_short(saddr) << 16) |
(u_int32_t)read_short(saddr+1);;
}
static inline void write_long(u_int32_t* addr, u_int32_t value)
{
u_int16_t* saddr = (u_int16_t*)addr;
write_short(saddr, (u_int16_t)(value>>16));
write_short(saddr+1, (u_int16_t)value);
}
#endif