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| 1 : | Isibaar | 1.2 | // **************************************************************************** |
| 2 : | // * | ||
| 3 : | // * XVID MPEG-4 VIDEO CODEC | ||
| 4 : | // * - IA64 inverse discrete cosine transform - | ||
| 5 : | // * | ||
| 6 : | // * Copyright(C) 2002 Christian Schwarz, Haiko Gaisser, Sebastian Hack | ||
| 7 : | // * | ||
| 8 : | // * This program is free software; you can redistribute it and/or modify it | ||
| 9 : | // * under the terms of the GNU General Public License as published by | ||
| 10 : | // * the Free Software Foundation; either version 2 of the License, or | ||
| 11 : | // * (at your option) any later version. | ||
| 12 : | // * | ||
| 13 : | // * This program is distributed in the hope that it will be useful, | ||
| 14 : | // * but WITHOUT ANY WARRANTY; without even the implied warranty of | ||
| 15 : | // * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | ||
| 16 : | // * GNU General Public License for more details. | ||
| 17 : | // * | ||
| 18 : | // * You should have received a copy of the GNU General Public License | ||
| 19 : | // * along with this program; if not, write to the Free Software | ||
| 20 : | // * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA | ||
| 21 : | // * | ||
| 22 : | // * $Id: idct_init.s,v 1.1 2008/12/04 14:41:50 Isibaar Exp $ | ||
| 23 : | // * | ||
| 24 : | // ***************************************************************************/ | ||
| 25 : | // | ||
| 26 : | // **************************************************************************** | ||
| 27 : | // * | ||
| 28 : | // * idct_init.s, IA-64 optimized inverse DCT | ||
| 29 : | // * | ||
| 30 : | // * This version was implemented during an IA-64 practical training at | ||
| 31 : | // * the University of Karlsruhe (http://i44w3.info.uni-karlsruhe.de/) | ||
| 32 : | // * | ||
| 33 : | // **************************************************************************** | ||
| 34 : | // | ||
| 35 : | ia64p | 1.1 | |
| 36 : | addreg3 = r20 | ||
| 37 : | addreg4 = r21 | ||
| 38 : | addreg5 = r22 | ||
| 39 : | addreg6 = r23 | ||
| 40 : | |||
| 41 : | one = f30 | ||
| 42 : | alloc r16 = ar.pfs, 1, 71, 0, 0 | ||
| 43 : | addl addreg1 = @gprel(.data_c0#), gp | ||
| 44 : | addl addreg2 = @gprel(.data_c2#), gp | ||
| 45 : | ;; | ||
| 46 : | add addreg3 = 32, addreg1 | ||
| 47 : | add addreg4 = 32, addreg2 | ||
| 48 : | add addreg5 = 64, addreg1 | ||
| 49 : | add addreg6 = 64, addreg2 | ||
| 50 : | ;; | ||
| 51 : | ldfp8 c0, c1 = [addreg1] | ||
| 52 : | ldfp8 c2, c3 = [addreg2] | ||
| 53 : | ;; | ||
| 54 : | ldfp8 c4, c5 = [addreg3], 16 | ||
| 55 : | ldfp8 c6, c7 = [addreg4], 16 | ||
| 56 : | add addreg1 = 96, addreg1 | ||
| 57 : | add addreg2 = 96, addreg2 | ||
| 58 : | ;; | ||
| 59 : | ldfp8 c8, c9 = [addreg5], 16 | ||
| 60 : | ldfp8 c10, c11 = [addreg6], 16 | ||
| 61 : | ;; | ||
| 62 : | ldfp8 c12, c13 = [addreg1] | ||
| 63 : | ldfp8 c14, c15 = [addreg2] | ||
| 64 : | ;; | ||
| 65 : | mov addreg1 = in0 | ||
| 66 : | fpack one = f1, f1 | ||
| 67 : | add addreg2 = 2, in0 | ||
| 68 : | ;; |
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