zephyr/scripts/native_simulator/common/src/nsi_internal.h
Alberto Escolar Piedras 850fc2f22f Native simulator: Add first version in-tree
Add the first version of the native simulator.
The simultaor is taken as is from
https://github.com/BabbleSim/native_simulator/
sha: 74986abfe088a1780e604dae65f87470b4c2a0eb

Signed-off-by: Alberto Escolar Piedras <alberto.escolar.piedras@nordicsemi.no>
2023-07-05 07:01:19 -04:00

38 lines
805 B
C

/*
* Copyright (c) 2023 Nordic Semiconductor ASA
*
* SPDX-License-Identifier: Apache-2.0
*/
#ifndef NSI_COMMON_SRC_NSI_INTERNAL_H
#define NSI_COMMON_SRC_NSI_INTERNAL_H
#include <stdint.h>
#ifdef __cplusplus
extern "C" {
#endif
/**
*
* @brief find least significant bit set in a 32-bit word
*
* This routine finds the first bit set starting from the least significant bit
* in the argument passed in and returns the index of that bit. Bits are
* numbered starting at 1 from the least significant bit. A return value of
* zero indicates that the value passed is zero.
*
* @return least significant bit set, 0 if @a op is 0
*/
static inline unsigned int nsi_find_lsb_set(uint32_t op)
{
return __builtin_ffs(op);
}
#ifdef __cplusplus
}
#endif
#endif /* NSI_COMMON_SRC_NSI_INTERNAL_H */