| // 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 | |
| update_mtvec: | |
| .section .text | |
| .global update_mtvec | |
| 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 |