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Update documentation

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This commit is contained in:
Jeffrey Walton 2019-10-26 06:26:06 -04:00
parent f29bdbb61e
commit 1bfb8760bb
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1 changed files with 20 additions and 2 deletions
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22
ppc_simd.h
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@ -100,11 +100,29 @@
# define __CRYPTO__ 1
#endif
// The Power ABI says source arrays are non-const. XLC++
// will fail to compile if the source array is const.
/// \brief Cast array to vector pointer
/// \details CONST_V8_CAST casts a const array to a vector
/// pointer for a byte array. The Power ABI says source arrays
/// are non-const, so this define removes the const. XLC++ will
/// fail the compile if the source array is const.
#define CONST_V8_CAST(x) ((unsigned char*)(x))
/// \brief Cast array to vector pointer
/// \details NCONST_V8_CAST casts an array to a vector
/// pointer for a byte array. The Power ABI says source arrays
/// are non-const, so this define removes the const. XLC++ will
/// fail the compile if the source array is const.
#define NCONST_V8_CAST(x) ((unsigned char*)(x))
/// \brief Cast array to vector pointer
/// \details CONST_V32_CAST casts a const word array to a vector
/// pointer for a word array. The Power ABI says source arrays
/// are non-const, so this define removes the const. XLC++ will
/// fail the compile if the source array is const.
#define CONST_V32_CAST(x) ((unsigned int*)(x))
/// \brief Cast array to vector pointer
/// \details NCONST_V32_CAST casts an array to a vector
/// pointer for a word array. The Power ABI says source arrays
/// are non-const, so this define removes the const. XLC++ will
/// fail the compile if the source array is const.
#define NCONST_V32_CAST(x) ((unsigned int*)(x))
// VecLoad_ALTIVEC and VecStore_ALTIVEC are