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39 lines
1020 B
ArmAsm
39 lines
1020 B
ArmAsm
/* Copyright 2020 IBM Corp.
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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
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* 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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#include <microwatt_soc.h>
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#define STACK_TOP (BRAM_BASE + 0x3000)
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/* Load an immediate 64-bit value into a register */
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#define LOAD_IMM64(r, e) \
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lis r,(e)@highest; \
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ori r,r,(e)@higher; \
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rldicr r,r, 32, 31; \
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oris r,r, (e)@h; \
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ori r,r, (e)@l;
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.section ".head","ax"
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.global start
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start:
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/* setup stack */
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LOAD_IMM64(%r1, STACK_TOP - 0x100)
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LOAD_IMM64(%r12, main)
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mtctr %r12,
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bctrl
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b .
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