rt-thread/libcpu/risc-v/juicevm/interrupt.c

34 lines
699 B
C
Executable File

/*
* Copyright (c) 2006-2021, RT-Thread Development Team
*
* SPDX-License-Identifier: Apache-2.0
*
* Change Logs:
* Date Author Notes
* 2021/04/24 Juice The first version
*/
#include <rthw.h>
#include <board.h>
typedef void (*irq_handler_t)(void);
extern const irq_handler_t isrTable[];
uintptr_t handle_trap(uintptr_t mcause, uintptr_t epc, uintptr_t *sp)
{
uint32_t intNum;
if (mcause & 0x80000000) /* For external interrupt. */
{
}
else
{
intNum = mcause & 0x1FUL;
/* Now call the real irq handler for intNum */
if (intNum <= 24)
{
if (isrTable[intNum])isrTable[intNum]();
}
}
}