diff options
Diffstat (limited to 'LUFA/Common/Common.h')
| -rw-r--r-- | LUFA/Common/Common.h | 26 |
1 files changed, 1 insertions, 25 deletions
diff --git a/LUFA/Common/Common.h b/LUFA/Common/Common.h index 02fc98fdc..87fc08cb1 100644 --- a/LUFA/Common/Common.h +++ b/LUFA/Common/Common.h @@ -71,6 +71,7 @@ #include "LUFAConfig.h" #endif + #include "CompilerSpecific.h" #include "Architectures.h" #include "Attributes.h" #include "BoardTypes.h" @@ -228,31 +229,6 @@ #define pgm_read_ptr(Address) (void*)pgm_read_word(Address) #endif #endif - - /** Forces GCC to use pointer indirection (via the device's pointer register pairs) when accessing the given - * struct pointer. In some cases GCC will emit non-optimal assembly code when accessing a structure through - * a pointer, resulting in a larger binary. When this macro is used on a (non \c const) structure pointer before - * use, it will force GCC to use pointer indirection on the elements rather than direct store and load - * instructions. - * - * \param[in, out] StructPtr Pointer to a structure which is to be forced into indirect access mode. - */ - #define GCC_FORCE_POINTER_ACCESS(StructPtr) __asm__ __volatile__("" : "=b" (StructPtr) : "0" (StructPtr)) - - /** Forces GCC to create a memory barrier, ensuring that memory accesses are not reordered past the barrier point. - * This can be used before ordering-critical operations, to ensure that the compiler does not re-order the resulting - * assembly output in an unexpected manner on sections of code that are ordering-specific. - */ - #define GCC_MEMORY_BARRIER() __asm__ __volatile__("" ::: "memory"); - - /** Evaluates to boolean true if the specified value can be determined at compile time to be a constant value - * when compiling under GCC. - * - * \param[in] x Value to check compile time constantness of. - * - * \return Boolean true if the given value is known to be a compile time constant. - */ - #define GCC_IS_COMPILE_CONST(x) __builtin_constant_p(x) #if !defined(ISR) || defined(__DOXYGEN__) /** Macro for the definition of interrupt service routines, so that the compiler can insert the required |