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/**
* @file
*
* @brief V850 Set up Basic CPU Dependency Settings Based on Compiler Settings
*
* This file sets up basic CPU dependency settings based on
* compiler settings. For example, it can determine if
* floating point is available. This particular implementation
* is specified to the Renesas v850 port.
*/
/*
* COPYRIGHT (c) 1989-2012.
* On-Line Applications Research Corporation (OAR).
*
* The license and distribution terms for this file may be
* found in the file LICENSE in this distribution or at
* http://www.rtems.org/license/LICENSE.
*/
#ifndef _RTEMS_SCORE_V850_H
#define _RTEMS_SCORE_V850_H
#ifdef __cplusplus
extern "C" {
#endif
/*
* This file contains the information required to build
* RTEMS for a particular member of the NO CPU family.
* It does this by setting variables to indicate which
* implementation dependent features are present in a particular
* member of the family.
*
* This is a good place to list all the known CPU models
* that this port supports and which RTEMS CPU model they correspond
* to.
*/
#if defined(rtems_multilib)
/*
* Figure out all CPU Model Feature Flags based upon compiler
* predefines.
*/
#define CPU_MODEL_NAME "rtems_multilib"
#define V850_HAS_FPU 0
#define V850_HAS_BYTE_SWAP_INSTRUCTION 0
#elif defined(__v850e2v3__)
#define CPU_MODEL_NAME "v850e2v3"
#define V850_HAS_FPU 1
#define V850_HAS_BYTE_SWAP_INSTRUCTION 1
#elif defined(__v850e2__)
#define CPU_MODEL_NAME "v850e2"
#define V850_HAS_FPU 0
#define V850_HAS_BYTE_SWAP_INSTRUCTION 1
#elif defined(__v850es__)
#define CPU_MODEL_NAME "v850es"
#define V850_HAS_FPU 0
#define V850_HAS_BYTE_SWAP_INSTRUCTION 1
#elif defined(__v850e1__)
#define CPU_MODEL_NAME "v850e1"
#define V850_HAS_FPU 0
#define V850_HAS_BYTE_SWAP_INSTRUCTION 1
#elif defined(__v850e__)
#define CPU_MODEL_NAME "v850e"
#define V850_HAS_FPU 0
#define V850_HAS_BYTE_SWAP_INSTRUCTION 1
#else
#define CPU_MODEL_NAME "v850"
#define V850_HAS_FPU 0
#define V850_HAS_BYTE_SWAP_INSTRUCTION 0
#endif
/*
* Define the name of the CPU family.
*/
#define CPU_NAME "v850 CPU"
/*
* Method to set the Program Status Word (PSW)
*/
#define v850_set_psw( _psw ) \
__asm__ __volatile__( "ldsr %0, psw" : : "r" (_psw) )
/*
* Method to obtain the Program Status Word (PSW)
*/
#define v850_get_psw( _psw ) \
__asm__ __volatile__( "stsr psw, %0" : "=&r" (_psw) )
/*
* Masks and bits in the Program Status Word (PSW)
*/
#define V850_PSW_ZERO_MASK 0x01
#define V850_PSW_IS_ZERO 0x01
#define V850_PSW_IS_NOT 0x00
#define V850_PSW_SIGN_MASK 0x02
#define V850_PSW_SIGN_IS_NEGATIVE 0x02
#define V850_PSW_SIGN_IS_ZERO_OR_POSITIVE 0x00
#define V850_PSW_OVERFLOW_MASK 0x02
#define V850_PSW_OVERFLOW_OCCURRED 0x02
#define V850_PSW_OVERFLOW_DID_NOT_OCCUR 0x00
#define V850_PSW_CARRY_OR_BORROW_MASK 0x04
#define V850_PSW_CARRY_OR_BORROW_OCCURRED 0x04
#define V850_PSW_CARRY_OR_BORROW_DID_NOT_OCCUR 0x00
#define V850_PSW_SATURATION_MASK 0x10
#define V850_PSW_SATURATION_OCCURRED 0x10
#define V850_PSW_SATURATION_DID_NOT_OCCUR 0x00
#define V850_PSW_INTERRUPT_DISABLE_MASK 0x20
#define V850_PSW_INTERRUPT_DISABLE 0x20
#define V850_PSW_INTERRUPT_ENABLE 0x00
#define V850_PSW_EXCEPTION_IN_PROCESS_MASK 0x40
#define V850_PSW_EXCEPTION_IN_PROCESS 0x40
#define V850_PSW_EXCEPTION_NOT_IN_PROCESS 0x00
#define V850_PSW_NMI_IN_PROCESS_MASK 0x80
#define V850_PSW_NMI_IN_PROCESS 0x80
#define V850_PSW_NMI_NOT_IN_PROCESS 0x00
#ifdef __cplusplus
}
#endif
#endif /* _RTEMS_SCORE_V850_H */
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