mirror of https://git.ffmpeg.org/ffmpeg.git
111 lines
2.8 KiB
ArmAsm
111 lines
2.8 KiB
ArmAsm
/*
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* Copyright (c) 2024 Institue of Software Chinese Academy of Sciences (ISCAS).
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*
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* This file is part of FFmpeg.
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*
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* FFmpeg is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* FFmpeg is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with FFmpeg; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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#include "libavutil/riscv/asm.S"
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#if __riscv_xlen >= 64
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func ff_copy64_rvi
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lpad 0
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1:
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addi a4, a4, -1
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ld t0, (a2)
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ld t1, 8(a2)
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ld t2, 16(a2)
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ld t3, 24(a2)
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ld t4, 32(a2)
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ld t5, 40(a2)
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ld t6, 48(a2)
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ld a7, 56(a2)
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sd t0, (a0)
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sd t1, 8(a0)
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sd t2, 16(a0)
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sd t3, 24(a0)
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sd t4, 32(a0)
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sd t5, 40(a0)
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sd t6, 48(a0)
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sd a7, 56(a0)
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add a2, a2, a3
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add a0, a0, a1
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bnez a4, 1b
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ret
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endfunc
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func ff_copy32_rvi
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lpad 0
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1:
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addi a4, a4, -1
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ld t0, (a2)
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ld t1, 8(a2)
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ld t2, 16(a2)
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ld t3, 24(a2)
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sd t0, (a0)
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sd t1, 8(a0)
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sd t2, 16(a0)
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sd t3, 24(a0)
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add a2, a2, a3
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add a0, a0, a1
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bnez a4, 1b
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ret
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endfunc
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func ff_copy16_rvi
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lpad 0
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1:
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addi a4, a4, -1
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ld t0, (a2)
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ld t1, 8(a2)
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sd t0, (a0)
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sd t1, 8(a0)
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add a2, a2, a3
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add a0, a0, a1
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bnez a4, 1b
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ret
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endfunc
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func ff_copy8_rvi
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lpad 0
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1:
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addi a4, a4, -1
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ld t0, (a2)
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sd t0, (a0)
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add a2, a2, a3
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add a0, a0, a1
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bnez a4, 1b
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ret
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endfunc
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#endif
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func ff_copy4_rvi
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lpad 0
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1:
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addi a4, a4, -1
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lw t0, (a2)
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sw t0, (a0)
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add a2, a2, a3
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add a0, a0, a1
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bnez a4, 1b
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ret
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endfunc
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