nuttx/arch/renesas/include/m16c/arch.h

87 lines
2.8 KiB
C
Raw Normal View History

/****************************************************************************
* arch/renesas/include/m16c/arch.h
*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership. The
* ASF licenses this file to you under the Apache License, Version 2.0 (the
* "License"); you may not use this file except in compliance with the
* License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
* License for the specific language governing permissions and limitations
* under the License.
*
****************************************************************************/
/* This file should never be included directly but, rather,
* only indirectly through nuttx/arch.h
*/
#ifndef __ARCH_RENESAS_INCLUDE_M16C_ARCH_H
#define __ARCH_RENESAS_INCLUDE_M16C_ARCH_H
/****************************************************************************
* Included Files
****************************************************************************/
/****************************************************************************
* Pre-processor Definitions
****************************************************************************/
/****************************************************************************
* Public Types
****************************************************************************/
#ifndef __ASSEMBLY__
/****************************************************************************
* Inline functions
****************************************************************************/
/****************************************************************************
* Name: renesas_getsp
****************************************************************************/
static inline uint16_t renesas_getsp(void)
{
uint16_t sp;
__asm__ __volatile__
(
"\tstc sp, %0\n\t"
: "=r" (sp)
:
: "memory"
);
return sp;
}
/****************************************************************************
* Public Variables
****************************************************************************/
/****************************************************************************
* Public Function Prototypes
****************************************************************************/
#ifdef __cplusplus
#define EXTERN extern "C"
extern "C"
{
#else
#define EXTERN extern
#endif
#undef EXTERN
#ifdef __cplusplus
}
#endif
#endif /* __ASSEMBLY__ */
#endif /* __ARCH_RENESAS_INCLUDE_M16C_ARCH_H */