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| /* | |
| * Alpha optimized DSP utils | |
| * Copyright (c) 2002 Falk Hueffner <[email protected]> | |
| * | |
| * This file is part of FFmpeg. | |
| * | |
| * FFmpeg is free software; you can redistribute it and/or | |
| * modify it under the terms of the GNU Lesser General Public | |
| * License as published by the Free Software Foundation; either | |
| * version 2.1 of the License, or (at your option) any later version. | |
| * | |
| * FFmpeg is distributed in the hope that it will be useful, | |
| * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
| * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
| * Lesser General Public License for more details. | |
| * | |
| * You should have received a copy of the GNU Lesser General Public | |
| * License along with FFmpeg; if not, write to the Free Software | |
| * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA | |
| */ | |
| /* | |
| * These functions are scheduled for pca56. They should work | |
| * reasonably on ev6, though. | |
| */ | |
| #include "regdef.h" | |
| noat | |
| noreorder | |
| .arch pca56 | |
| /************************************************************************ | |
| * void put_pixels_axp_asm(uint8_t *block, const uint8_t *pixels, | |
| * int line_size, int h) | |
| */ | |
| 6 | |
| .globl put_pixels_axp_asm | |
| .ent put_pixels_axp_asm | |
| put_pixels_axp_asm: | |
| .frame sp, 0, ra | |
| .prologue 0 | |
| and a1, 7, t0 | |
| beq t0, $aligned | |
| 4 | |
| $unaligned: | |
| ldq_u t0, 0(a1) | |
| ldq_u t1, 8(a1) | |
| addq a1, a2, a1 | |
| nop | |
| ldq_u t2, 0(a1) | |
| ldq_u t3, 8(a1) | |
| addq a1, a2, a1 | |
| nop | |
| ldq_u t4, 0(a1) | |
| ldq_u t5, 8(a1) | |
| addq a1, a2, a1 | |
| nop | |
| ldq_u t6, 0(a1) | |
| ldq_u t7, 8(a1) | |
| extql t0, a1, t0 | |
| addq a1, a2, a1 | |
| extqh t1, a1, t1 | |
| addq a0, a2, t8 | |
| extql t2, a1, t2 | |
| addq t8, a2, t9 | |
| extqh t3, a1, t3 | |
| addq t9, a2, ta | |
| extql t4, a1, t4 | |
| or t0, t1, t0 | |
| extqh t5, a1, t5 | |
| or t2, t3, t2 | |
| extql t6, a1, t6 | |
| or t4, t5, t4 | |
| extqh t7, a1, t7 | |
| or t6, t7, t6 | |
| stq t0, 0(a0) | |
| stq t2, 0(t8) | |
| stq t4, 0(t9) | |
| subq a3, 4, a3 | |
| stq t6, 0(ta) | |
| addq ta, a2, a0 | |
| bne a3, $unaligned | |
| ret | |
| 4 | |
| $aligned: | |
| ldq t0, 0(a1) | |
| addq a1, a2, a1 | |
| ldq t1, 0(a1) | |
| addq a1, a2, a1 | |
| ldq t2, 0(a1) | |
| addq a1, a2, a1 | |
| ldq t3, 0(a1) | |
| addq a0, a2, t4 | |
| addq a1, a2, a1 | |
| addq t4, a2, t5 | |
| subq a3, 4, a3 | |
| stq t0, 0(a0) | |
| addq t5, a2, t6 | |
| stq t1, 0(t4) | |
| addq t6, a2, a0 | |
| stq t2, 0(t5) | |
| stq t3, 0(t6) | |
| bne a3, $aligned | |
| ret | |
| put_pixels_axp_asm | |