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  1. /*
  2.  * Common module to set offset into the scoreboard
  3.  * Copyright © <2010>, Intel Corporation.
  4.  *
  5.  * Permission is hereby granted, free of charge, to any person obtaining a
  6.  * copy of this software and associated documentation files (the
  7.  * "Software"), to deal in the Software without restriction, including
  8.  * without limitation the rights to use, copy, modify, merge, publish,
  9.  * distribute, sub license, and/or sell copies of the Software, and to
  10.  * permit persons to whom the Software is furnished to do so, subject to
  11.  * the following conditions:
  12.  *
  13.  * The above copyright notice and this permission notice (including the
  14.  * next paragraph) shall be included in all copies or substantial portions
  15.  * of the Software.
  16.  *
  17.  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
  18.  * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  19.  * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
  20.  * IN NO EVENT SHALL PRECISION INSIGHT AND/OR ITS SUPPLIERS BE LIABLE FOR
  21.  * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
  22.  * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
  23.  * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  24.  *
  25.  * This file was originally licensed under the following license
  26.  *
  27.  *  Licensed under the Apache License, Version 2.0 (the "License");
  28.  *  you may not use this file except in compliance with the License.
  29.  *  You may obtain a copy of the License at
  30.  *
  31.  *      http://www.apache.org/licenses/LICENSE-2.0
  32.  *
  33.  *  Unless required by applicable law or agreed to in writing, software
  34.  *  distributed under the License is distributed on an "AS IS" BASIS,
  35.  *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  36.  *  See the License for the specific language governing permissions and
  37.  *  limitations under the License.
  38.  *
  39.  */
  40. //
  41. // Module name: set_SB_offset.asm
  42. //
  43. // Common module to set offset into the scoreboard
  44. //      Note: This is to encapsulate the way M0.5:ud in ForwardMsg is filled.
  45. //
  46. //  $Revision: 2 $
  47. //  $Date: 10/16/06 5:19p $
  48. //
  49.         add (1)         MSGHDRY1.10<1>:uw r0.20:ub      0x0200:uw                       // Message length = 1 DWORD
  50.  
  51.         add     (16)    acc0<1>:w       r0.12<0;1,0>:uw -LEADING_THREAD:w       // 0-based thread count derived from r0.6:ud
  52.         shl (1)         M05_STORE<1>:uw         acc0<0;1,0>:uw  0x2:uw          // Store for future "update" use, in DWORD unit
  53.         and     (16)    acc0<1>:w       acc0<16;16,1>:uw        SB_MASK:uw              // Wrap around scoreboard
  54.         shl (1)         MSGHDRY1.11<1>:uw       acc0<0;1,0>:uw  0x2:uw          // Convert to DWORD offset
  55.  
  56. // End of set_SB_offset