Update cpu.cpp features for Apple M1

1 files changed, 12 insertions, 12 deletions

diff --git a/cpu.h b/cpu.h
index 26680e96..75f39efe 100644
--- a/cpu.h
+++ b/cpu.h
@@ -579,41 +579,41 @@ inline bool HasSHA2()
 #endif

 }

 

-/// \brief Determine if an ARM processor has SHA512 available

-/// \return true if the hardware is capable of SHA512 at runtime, false otherwise.

-/// \details SHA512 is part of the ARMv8.4 Crypto extensions on Aarch32 and Aarch64. They

+/// \brief Determine if an ARM processor has SHA3 available

+/// \return true if the hardware is capable of SHA3 at runtime, false otherwise.

+/// \details SHA3 is part of the ARMv8.2 Crypto extensions on Aarch32 and Aarch64. They

 ///  are accessed using ARM C Language Extensions 2.0 (ACLE 2.0).

 /// \details Runtime support requires compile time support. When compiling with GCC, you

-///  may need to compile with <tt>-march=armv8.4-a+crypto</tt>; while Apple requires

+///  may need to compile with <tt>-march=armv8.2-a+crypto</tt>; while Apple requires

 ///  <tt>-arch arm64</tt>. Also see ARM's <tt>__ARM_FEATURE_CRYPTO</tt> preprocessor macro.

 /// \since Crypto++ 8.0

 /// \note This function is only available on Aarch32 and Aarch64 platforms

-inline bool HasSHA512()

+inline bool HasSHA3()

 {

 #if defined(__aarch32__) || defined(__aarch64__)

 	if (!g_ArmDetectionDone)

 		DetectArmFeatures();

-	return g_hasSHA512;

+	return g_hasSHA3;

 #else

 	return false;

 #endif

 }

 

-/// \brief Determine if an ARM processor has SHA3 available

-/// \return true if the hardware is capable of SHA3 at runtime, false otherwise.

-/// \details SHA3 is part of the ARMv8.4 Crypto extensions on Aarch32 and Aarch64. They

+/// \brief Determine if an ARM processor has SHA512 available

+/// \return true if the hardware is capable of SHA512 at runtime, false otherwise.

+/// \details SHA512 is part of the ARMv8.2 Crypto extensions on Aarch32 and Aarch64. They

 ///  are accessed using ARM C Language Extensions 2.0 (ACLE 2.0).

 /// \details Runtime support requires compile time support. When compiling with GCC, you

-///  may need to compile with <tt>-march=armv8.4-a+crypto</tt>; while Apple requires

+///  may need to compile with <tt>-march=armv8.2-a+crypto</tt>; while Apple requires

 ///  <tt>-arch arm64</tt>. Also see ARM's <tt>__ARM_FEATURE_CRYPTO</tt> preprocessor macro.

 /// \since Crypto++ 8.0

 /// \note This function is only available on Aarch32 and Aarch64 platforms

-inline bool HasSHA3()

+inline bool HasSHA512()

 {

 #if defined(__aarch32__) || defined(__aarch64__)

 	if (!g_ArmDetectionDone)

 		DetectArmFeatures();

-	return g_hasSHA3;

+	return g_hasSHA512;

 #else

 	return false;

 #endif