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