49 lines
1.2 KiB
ArmAsm
49 lines
1.2 KiB
ArmAsm
# SPDX-License-Identifier: Apache-2.0
|
|
# Copyright 2020 Western Digital Corporation or its affiliates.
|
|
#
|
|
# Licensed under the Apache License, Version 2.0 (the "License");
|
|
# you may not use this file except in compliance with the License.
|
|
# You may obtain a copy of the License at
|
|
#
|
|
# http://www.apache.org/licenses/LICENSE-2.0
|
|
#
|
|
# Unless required by applicable law or agreed to in writing, software
|
|
# distributed under the License is distributed on an "AS IS" BASIS,
|
|
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
|
# See the License for the specific language governing permissions and
|
|
# limitations under the License.
|
|
#
|
|
// startup code to support HLL programs
|
|
|
|
#include "defines.h"
|
|
|
|
.section .text.init
|
|
.global _start
|
|
_start:
|
|
|
|
// enable caching, except region 0xd
|
|
li t0, 0x59555555
|
|
csrw 0x7c0, t0
|
|
|
|
la sp, STACK
|
|
|
|
call main
|
|
|
|
|
|
.global _finish
|
|
_finish:
|
|
la t0, tohost
|
|
li t1, 0xff
|
|
sb t1, 0(t0) // DemoTB test termination
|
|
li t1, 1
|
|
sw t1, 0(t0) // Whisper test termination
|
|
beq x0, x0, _finish
|
|
.rept 10
|
|
nop
|
|
.endr
|
|
|
|
.section .data.io
|
|
.global tohost
|
|
tohost: .word 0
|
|
|