| // Copyright lowRISC contributors. |
| // Licensed under the Apache License, Version 2.0, see LICENSE for details. |
| // SPDX-License-Identifier: Apache-2.0 |
| |
| .extern handler_exception |
| .extern handler_irq_software |
| .extern handler_irq_timer |
| .extern handler_irq_external |
| .extern _svectors |
| |
| update_mtvec: |
| .section .text |
| .global update_mtvec |
| la a0, _svectors |
| csrw mtvec, a0 |
| ret |
| |
| exception_handlers: |
| .section .vectors |
| .global vector_handlers |
| |
| // exception handler |
| .org 0x0 |
| jal x0, handler_exception |
| |
| // software interrupt handler |
| .org 0x0c |
| jal x0, handler_irq_software |
| |
| // timer interrupt handler |
| .org 0x1c |
| jal x0, handler_irq_timer |
| |
| // external interrupt handler |
| .org 0x2c |
| jal x0, handler_irq_external |
