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74 lines
1.6 KiB
C
74 lines
1.6 KiB
C
/** @file
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IA-32/x64 AsmRdRandxx()
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Generates random number through CPU RdRand instruction.
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Copyright (c) 2016, Intel Corporation. All rights reserved.<BR>
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SPDX-License-Identifier: BSD-2-Clause-Patent
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**/
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#include "BaseLibInternals.h"
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/**
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Generates a 16-bit random number through RDRAND instruction.
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if Rand is NULL, then ASSERT().
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@param[out] Rand Buffer pointer to store the random result.
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@retval TRUE RDRAND call was successful.
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@retval FALSE Failed attempts to call RDRAND.
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**/
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BOOLEAN
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EFIAPI
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AsmRdRand16 (
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OUT UINT16 *Rand
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)
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{
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ASSERT (Rand != NULL);
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return InternalX86RdRand16 (Rand);
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}
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/**
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Generates a 32-bit random number through RDRAND instruction.
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if Rand is NULL, then ASSERT().
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@param[out] Rand Buffer pointer to store the random result.
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@retval TRUE RDRAND call was successful.
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@retval FALSE Failed attempts to call RDRAND.
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**/
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BOOLEAN
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EFIAPI
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AsmRdRand32 (
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OUT UINT32 *Rand
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)
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{
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ASSERT (Rand != NULL);
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return InternalX86RdRand32 (Rand);
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}
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/**
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Generates a 64-bit random number through RDRAND instruction.
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if Rand is NULL, then ASSERT().
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@param[out] Rand Buffer pointer to store the random result.
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@retval TRUE RDRAND call was successful.
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@retval FALSE Failed attempts to call RDRAND.
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**/
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BOOLEAN
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EFIAPI
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AsmRdRand64 (
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OUT UINT64 *Rand
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)
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{
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ASSERT (Rand != NULL);
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return InternalX86RdRand64 (Rand);
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}
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