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125 lines
2.9 KiB
125 lines
2.9 KiB
/* |
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* Alpha optimized DSP utils |
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* Copyright (c) 2002 Falk Hueffner <falk@debian.org> |
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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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/* |
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* These functions are scheduled for pca56. They should work |
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* reasonably on ev6, though. |
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*/ |
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#include "regdef.h" |
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.set noat |
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.set noreorder |
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.arch pca56 |
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.text |
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/************************************************************************ |
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* void put_pixels_axp_asm(uint8_t *block, const uint8_t *pixels, |
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* int line_size, int h) |
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*/ |
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.align 6 |
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.globl put_pixels_axp_asm |
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.ent put_pixels_axp_asm |
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put_pixels_axp_asm: |
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.frame sp, 0, ra |
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.prologue 0 |
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and a1, 7, t0 |
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beq t0, $aligned |
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.align 4 |
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$unaligned: |
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ldq_u t0, 0(a1) |
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ldq_u t1, 8(a1) |
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addq a1, a2, a1 |
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nop |
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ldq_u t2, 0(a1) |
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ldq_u t3, 8(a1) |
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addq a1, a2, a1 |
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nop |
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ldq_u t4, 0(a1) |
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ldq_u t5, 8(a1) |
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addq a1, a2, a1 |
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nop |
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ldq_u t6, 0(a1) |
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ldq_u t7, 8(a1) |
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extql t0, a1, t0 |
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addq a1, a2, a1 |
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extqh t1, a1, t1 |
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addq a0, a2, t8 |
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extql t2, a1, t2 |
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addq t8, a2, t9 |
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extqh t3, a1, t3 |
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addq t9, a2, ta |
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extql t4, a1, t4 |
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or t0, t1, t0 |
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extqh t5, a1, t5 |
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or t2, t3, t2 |
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extql t6, a1, t6 |
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or t4, t5, t4 |
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extqh t7, a1, t7 |
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or t6, t7, t6 |
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stq t0, 0(a0) |
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stq t2, 0(t8) |
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stq t4, 0(t9) |
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subq a3, 4, a3 |
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stq t6, 0(ta) |
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addq ta, a2, a0 |
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bne a3, $unaligned |
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ret |
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.align 4 |
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$aligned: |
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ldq t0, 0(a1) |
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addq a1, a2, a1 |
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ldq t1, 0(a1) |
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addq a1, a2, a1 |
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ldq t2, 0(a1) |
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addq a1, a2, a1 |
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ldq t3, 0(a1) |
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addq a0, a2, t4 |
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addq a1, a2, a1 |
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addq t4, a2, t5 |
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subq a3, 4, a3 |
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stq t0, 0(a0) |
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addq t5, a2, t6 |
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stq t1, 0(t4) |
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addq t6, a2, a0 |
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stq t2, 0(t5) |
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stq t3, 0(t6) |
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bne a3, $aligned |
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ret |
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.end put_pixels_axp_asm
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