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@ -107,10 +107,45 @@
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*
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* \ingroup Group_Debugging
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*/
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#define STDOUT_ASSERT(x) MACROS{ if (!(x)) { printf_P(PSTR("%s: Function \"%s\", Line %d: " \
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#define STDOUT_ASSERT(x) MACROS{ if (!(x)) { printf_P(PSTR("%s: Function \"%s\", Line %d: " \
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"Assertion \"%s\" failed.\r\n"), \
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__FILE__, __func__, __LINE__, #x); } \
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}MACROE
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__FILE__, __func__, __LINE__, #x); } }MACROE
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#if !defined(pgm_read_ptr) || defined(__DOXYGEN__)
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/** Reads a pointer out of PROGMEM space. This is currently a wrapper for the avr-libc pgm_read_ptr()
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* macro with a void* cast, so that its value can be assigned diretly to a pointer variable or used
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* in pointer arithmetic without further casting in C. In a future avr-libc distribution this will be
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* part of the standard API and will be implemented in a more formal manner.
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*
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* \param[in] Addr Address of the pointer to read.
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*
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* \return Pointer retrieved from PROGMEM space.
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*/
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#define pgm_read_ptr(Addr) (void*)pgm_read_word(Addr)
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#endif
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/** Swaps the byte ordering of a 16-bit value at compile time. Do not use this macro for swapping byte orderings
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* of dynamic values computed at runtime, use \ref SwapEndian_16() instead. The result of this macro can be used
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* inside struct or other variable initializers outside of a function, something that is not possible with the
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* inline function variant.
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*
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* \param[in] x 16-bit value whose byte ordering is to be swapped.
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*
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* \return Input value with the byte ordering reversed.
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*/
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#define SWAPENDIAN_16(x) ((((x) & 0xFF00) >> 8) | (((x) & 0x00FF) << 8))
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/** Swaps the byte ordering of a 32-bit value at compile time. Do not use this macro for swapping byte orderings
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* of dynamic values computed at runtime- use \ref SwapEndian_32() instead. The result of this macro can be used
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* inside struct or other variable initializers outside of a function, something that is not possible with the
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* inline function variant.
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*
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* \param[in] x 32-bit value whose byte ordering is to be swapped.
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*
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* \return Input value with the byte ordering reversed.
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*/
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#define SWAPENDIAN_32(x) ((((x) & 0xFF000000UL) >> 24UL) | (((x) & 0x00FF0000UL) >> 8UL) | \
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(((x) & 0x0000FF00UL) << 8UL) | (((x) & 0x000000FFUL) << 24UL))
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/* Inline Functions: */
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/** Function to reverse the individual bits in a byte - i.e. bit 7 is moved to bit 0, bit 6 to bit 1,
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Dean Camera
14 years ago