neorv32_rte.h

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// ================================================================================ //
// The NEORV32 RISC-V Processor - https://github.com/stnolting/neorv32              //
// Copyright (c) NEORV32 contributors.                                              //
// Copyright (c) 2020 - 2025 Stephan Nolting. All rights reserved.                  //
// Licensed under the BSD-3-Clause license, see LICENSE for details.                //
// SPDX-License-Identifier: BSD-3-Clause                                            //
// ================================================================================ //

 
#ifndef NEORV32_RTE_H
#define NEORV32_RTE_H
 
#include <stdint.h>
 
/**********************************************************************/
enum NEORV32_RTE_TRAP_enum {
  // --- synchronous exceptions ---
  RTE_TRAP_I_ACCESS     =  0, 
  RTE_TRAP_I_ILLEGAL    =  1, 
  RTE_TRAP_I_MISALIGNED =  2, 
  RTE_TRAP_BREAKPOINT   =  3, 
  RTE_TRAP_L_MISALIGNED =  4, 
  RTE_TRAP_L_ACCESS     =  5, 
  RTE_TRAP_S_MISALIGNED =  6, 
  RTE_TRAP_S_ACCESS     =  7, 
  RTE_TRAP_UENV_CALL    =  8, 
  RTE_TRAP_MENV_CALL    =  9, 
  RTE_TRAP_DOUBLE_TRAP  = 10,
  // --- asynchronous exceptions ---
  RTE_TRAP_MSI          = 11, 
  RTE_TRAP_MTI          = 12, 
  RTE_TRAP_MEI          = 13, 
  RTE_TRAP_FIRQ_0       = 14, 
  RTE_TRAP_FIRQ_1       = 15, 
  RTE_TRAP_FIRQ_2       = 16, 
  RTE_TRAP_FIRQ_3       = 17, 
  RTE_TRAP_FIRQ_4       = 18, 
  RTE_TRAP_FIRQ_5       = 19, 
  RTE_TRAP_FIRQ_6       = 20, 
  RTE_TRAP_FIRQ_7       = 21, 
  RTE_TRAP_FIRQ_8       = 22, 
  RTE_TRAP_FIRQ_9       = 23, 
  RTE_TRAP_FIRQ_10      = 24, 
  RTE_TRAP_FIRQ_11      = 25, 
  RTE_TRAP_FIRQ_12      = 26, 
  RTE_TRAP_FIRQ_13      = 27, 
  RTE_TRAP_FIRQ_14      = 28, 
  RTE_TRAP_FIRQ_15      = 29  
};

#define NEORV32_RTE_NUM_TRAPS 30
 
/**********************************************************************/
void     neorv32_rte_setup(void);
void     neorv32_rte_core(void);
int      neorv32_rte_handler_install(int id, void (*handler)(void));
void     neorv32_rte_debug_handler(void);
uint32_t neorv32_rte_context_get(int x);
void     neorv32_rte_context_put(int x, uint32_t data);
 
#endif // NEORV32_RTE_H