MdePkg/Library/BaseLib/Ipf/AccessKr7.s

   1 /// @file
   2 ///  IPF specific AsmReadKr7() and AsmWriteKr7()
   3 ///
   4 /// Copyright (c) 2006 - 2009, Intel Corporation
   5 /// All rights reserved. This program and the accompanying materials
   6 /// are licensed and made available under the terms and conditions of the BSD License
   7 /// which accompanies this distribution.  The full text of the license may be found at
   8 /// http://opensource.org/licenses/bsd-license.php
   9 ///
  10 /// THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
  11 /// WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
  12 ///
  13 /// Module Name: AccessKr7.s
  14 ///
  15 ///
  16
  17 //---------------------------------------------------------------------------------
  18 //++
  19 // AsmReadKr7
  20 //
  21 // This routine is used to get KR7.
  22 //
  23 // Arguments :
  24 //
  25 // On Entry :  None.
  26 //
  27 // Return Value: The value store in KR7.
  28 //
  29 //--
  30 //----------------------------------------------------------------------------------
  31 .text
  32 .type   AsmReadKr7, @function
  33 .proc   AsmReadKr7
  34
  35 AsmReadKr7::
  36         mov             r8 = ar.k7;;
  37         br.ret.dpnt     b0;;
  38 .endp   AsmReadKr7
  39
  40 //---------------------------------------------------------------------------------
  41 //++
  42 // AsmWriteKr7
  43 //
  44 // This routine is used to write KR7.
  45 //
  46 // Arguments :
  47 //
  48 // On Entry :  None.
  49 //
  50 // Return Value: The value written to the KR7.
  51 //
  52 //--
  53 //----------------------------------------------------------------------------------
  54 .text
  55 .type   AsmWriteKr7, @function
  56 .proc   AsmWriteKr7
  57 .regstk 1, 3, 0, 0
  58
  59 AsmWriteKr7::
  60         mov             ar.k7 = in0
  61         mov             r8 = in0;;
  62         br.ret.dpnt     b0;;
  63 .endp   AsmWriteKr7