/* * 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 #include 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](); } } }