MdePkg/Include/Ipf/IpfMacro.i

   1 //++
   2 // Copyright (c) 2006, Intel Corporation
   3 // All rights reserved. This program and the accompanying materials
   4 // are licensed and made available under the terms and conditions of the BSD License
   5 // which accompanies this distribution.  The full text of the license may be found at
   6 // http://opensource.org/licenses/bsd-license.php
   7 //
   8 // THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
   9 // WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
  10 //
  11 // Module Name:
  12 //  IpfMacro.i
  13 //
  14 // Abstract:
  15 //  Contains the macros needed for calling procedures in Itanium-based assembly code.
  16 //
  17 //
  18 // Revision History:
  19 //
  20 //--
  21
  22 #ifndef  __IA64PROC_I__
  23 #define  __IA64PROC_I__
  24
  25
  26 #define PROCEDURE_ENTRY(name)   .##text;            \
  27                                 .##type name, @function;    \
  28                                 .##proc name;           \
  29 name::
  30
  31 #define PROCEDURE_EXIT(name)    .##endp name
  32
  33 // Note: use of NESTED_SETUP requires number of locals (l) >= 3
  34
  35 #define NESTED_SETUP(i,l,o,r) \
  36          alloc loc1=ar##.##pfs,i,l,o,r ;\
  37          mov loc0=b0
  38
  39 #define NESTED_RETURN \
  40          mov b0=loc0 ;\
  41          mov ar##.##pfs=loc1 ;;\
  42          br##.##ret##.##dpnt  b0;;
  43
  44
  45 #define INTERRUPT_HANDLER_BEGIN(name) \
  46 PROCEDURE_ENTRY(name##HandlerBegin) \
  47 ;; \
  48 PROCEDURE_EXIT(name##HandlerBegin)
  49
  50 #define INTERRUPT_HANDLER_END(name) \
  51 PROCEDURE_ENTRY(name##HandlerEnd) \
  52 ;; \
  53 PROCEDURE_EXIT(name##HandlerEnd)
  54
  55
  56 #define INTERRUPT_HANDLER_BLOCK_BEGIN \
  57 INTERRUPT_HANDLER_BEGIN(First)
  58
  59 #define INTERRUPT_HANDLER_BLOCK_END \
  60 INTERRUPT_HANDLER_END(Last)
  61
  62
  63
  64 #endif