MdePkg/Library/BaseLib/Ipf/PalCallStatic.s

   1 /// @file
   2 ///   Contains an implementation of CallPalProcStatic on Itanium-based
   3 ///   architecture.
   4 ///
   5 /// Copyright (c) 2006, Intel Corporation
   6 /// All rights reserved. This program and the accompanying materials
   7 /// are licensed and made available under the terms and conditions of the BSD License
   8 /// which accompanies this distribution.  The full text of the license may be found at
   9 /// http://opensource.org/licenses/bsd-license.php
  10 ///
  11 /// THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
  12 /// WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
  13 ///
  14 /// Module Name:  PalCallStatic.s
  15 ///
  16 ///
  17
  18 .auto
  19 .text
  20
  21 .proc   PalCallStatic
  22 .type   PalCallStatic, @function
  23 .regstk 5, 0, 0, 0
  24 PalCallStatic::
  25         cmp.eq              p15 = in0, r0
  26         mov                 r31 = in4
  27         mov                 r8  = ip
  28
  29 (p15)   mov                 in0 = ar.k5
  30         add                 r8  = (_PalProcReturn - PalCallStatic), r8
  31         mov                 r30 = in3
  32
  33         mov                 in4 = psr
  34         mov                 in3 = b0
  35         mov                 b7  = in0
  36
  37         rsm                 1 << 14                 // Disable interrupts
  38         mov                 r29 = in2
  39         mov                 r28 = in1
  40
  41         mov                 b0  = r8
  42         br.cond.sptk.many   b7
  43
  44 _PalProcReturn:
  45         mov                 psr.l = in4
  46         mov                 b0  = in3
  47         br.ret.sptk.many    b0
  48 .endp   PalCallStatic