Core-A: Import CMSIS-Core(A) 1.3.2 (CMSIS 5.9.0)

/**************************************************************************//**

 * @file     cmsis_gcc.h

 * @brief    CMSIS compiler specific macros, functions, instructions

 * @version  V1.3.1

 * @date     05. May 2021

 * @version  V1.3.2

 * @date     24. March 2022

 ******************************************************************************/

/*

 * Copyright (c) 2009-2021 Arm Limited. All rights reserved.

 * Copyright (c) 2009-2022 Arm Limited. All rights reserved.

 *

 * SPDX-License-Identifier: Apache-2.0

 *

__STATIC_FORCEINLINE  uint32_t __RBIT(uint32_t value)

{

  uint32_t result;

#if ((defined (__ARM_ARCH_7M__      ) && (__ARM_ARCH_7M__      == 1)) || \

     (defined (__ARM_ARCH_7EM__     ) && (__ARM_ARCH_7EM__     == 1)) || \

     (defined (__ARM_ARCH_8M_MAIN__ ) && (__ARM_ARCH_8M_MAIN__ == 1))    )

   __ASM ("rbit %0, %1" : "=r" (result) : "r" (value) );

#else

  int32_t s = (4U /*sizeof(v)*/ * 8U) - 1U; /* extra shift needed at end */

  result = value;                      /* r will be reversed bits of v; first get LSB of v */

  for (value >>= 1U; value; value >>= 1U)

  {

    result <<= 1U;

    result |= value & 1U;

    s--;

  }

  result <<= s;                        /* shift when v's highest bits are zero */

#endif

  return result;

}