| Message ID | 1350447438-8603-2-git-send-email-rth@twiddle.net |
|---|---|
| State | New |
| Headers | show |
On Wed, Oct 17, 2012 at 4:17 AM, Richard Henderson <rth@twiddle.net> wrote: > Signed-off-by: Richard Henderson <rth@twiddle.net> > --- > cpu-all.h | 38 ++++++++++++++++++++++++++++++++++++++ > 1 file changed, 38 insertions(+) > > diff --git a/cpu-all.h b/cpu-all.h > index 2b99682..2db4414 100644 > --- a/cpu-all.h > +++ b/cpu-all.h > @@ -113,6 +113,44 @@ static inline void tswap64s(uint64_t *s) > #define bswaptls(s) bswap64s(s) > #endif > > +/* Unaligned loads and stores. */ > + > +static inline uint16_t unaligned_r16(const void *ptr) I think the names should match other loads and stores, so this should be something like lduw_unaligned_raw(). > +{ > + uint16_t ret; > + memcpy(&ret, ptr, sizeof(ret)); This also assumes native host byte order which may not be so useful. Perhaps actually there should be three versions, _be, _le and without infix for target byte order? > + return ret; > +} > + > +static inline uint32_t unaligned_r32(const void *ptr) > +{ > + uint32_t ret; > + memcpy(&ret, ptr, sizeof(ret)); > + return ret; > +} > + > +static inline uint64_t unaligned_r64(const void *ptr) > +{ > + uint64_t ret; > + memcpy(&ret, ptr, sizeof(ret)); > + return ret; > +} > + > +static inline void unaligned_w16(void *ptr, uint16_t v) > +{ > + memcpy(ptr, &v, sizeof(v)); > +} > + > +static inline void unaligned_w32(void *ptr, uint32_t v) > +{ > + memcpy(ptr, &v, sizeof(v)); > +} > + > +static inline void unaligned_w64(void *ptr, uint64_t v) > +{ > + memcpy(ptr, &v, sizeof(v)); > +} > + > /* CPU memory access without any memory or io remapping */ > > /* > -- > 1.7.11.7 > >
diff --git a/cpu-all.h b/cpu-all.h index 2b99682..2db4414 100644 --- a/cpu-all.h +++ b/cpu-all.h @@ -113,6 +113,44 @@ static inline void tswap64s(uint64_t *s) #define bswaptls(s) bswap64s(s) #endif +/* Unaligned loads and stores. */ + +static inline uint16_t unaligned_r16(const void *ptr) +{ + uint16_t ret; + memcpy(&ret, ptr, sizeof(ret)); + return ret; +} + +static inline uint32_t unaligned_r32(const void *ptr) +{ + uint32_t ret; + memcpy(&ret, ptr, sizeof(ret)); + return ret; +} + +static inline uint64_t unaligned_r64(const void *ptr) +{ + uint64_t ret; + memcpy(&ret, ptr, sizeof(ret)); + return ret; +} + +static inline void unaligned_w16(void *ptr, uint16_t v) +{ + memcpy(ptr, &v, sizeof(v)); +} + +static inline void unaligned_w32(void *ptr, uint32_t v) +{ + memcpy(ptr, &v, sizeof(v)); +} + +static inline void unaligned_w64(void *ptr, uint64_t v) +{ + memcpy(ptr, &v, sizeof(v)); +} + /* CPU memory access without any memory or io remapping */ /*
Signed-off-by: Richard Henderson <rth@twiddle.net> --- cpu-all.h | 38 ++++++++++++++++++++++++++++++++++++++ 1 file changed, 38 insertions(+)