Tools/Source/TianoTools/Common/PeiLib/PeiLib.c

   1 /*++
   2
   3 Copyright (c) 2004, Intel Corporation
   4 All rights reserved. This program and the accompanying materials
   5 are licensed and made available under the terms and conditions of the BSD License
   6 which accompanies this distribution.  The full text of the license may be found at
   7 http://opensource.org/licenses/bsd-license.php
   8
   9 THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
  10 WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
  11
  12 Module Name:
  13
  14   PeiLib.c
  15
  16 Abstract:
  17
  18   PEI Library Functions
  19
  20 --*/
  21
  22 #include "TianoCommon.h"
  23 #include "PeiHob.h"
  24 #include "Pei.h"
  25
  26 VOID
  27 PeiCopyMem (
  28   IN VOID   *Destination,
  29   IN VOID   *Source,
  30   IN UINTN  Length
  31   );
  32
  33 VOID
  34 ZeroMem (
  35   IN VOID   *Buffer,
  36   IN UINTN  Size
  37   )
  38 /*++
  39
  40 Routine Description:
  41
  42   Set Buffer to zero for Size bytes.
  43
  44 Arguments:
  45
  46   Buffer  - Memory to set.
  47
  48   Size    - Number of bytes to set
  49
  50 Returns:
  51
  52   None
  53
  54 --*/
  55 {
  56   INT8  *Ptr;
  57
  58   Ptr = Buffer;
  59   while (Size--) {
  60     *(Ptr++) = 0;
  61   }
  62 }
  63
  64 VOID
  65 PeiCopyMem (
  66   IN VOID   *Destination,
  67   IN VOID   *Source,
  68   IN UINTN  Length
  69   )
  70 /*++
  71
  72 Routine Description:
  73
  74   Copy Length bytes from Source to Destination.
  75
  76 Arguments:
  77
  78   Destination - Target of copy
  79
  80   Source      - Place to copy from
  81
  82   Length      - Number of bytes to copy
  83
  84 Returns:
  85
  86   None
  87
  88 --*/
  89 {
  90   CHAR8 *Destination8;
  91   CHAR8 *Source8;
  92
  93   Destination8  = Destination;
  94   Source8       = Source;
  95   while (Length--) {
  96     *(Destination8++) = *(Source8++);
  97   }
  98 }
  99
 100 VOID
 101 CopyMem (
 102   IN VOID   *Destination,
 103   IN VOID   *Source,
 104   IN UINTN  Length
 105   )
 106 /*++
 107
 108 Routine Description:
 109
 110   Copy Length bytes from Source to Destination.
 111
 112 Arguments:
 113
 114   Destination - Target of copy
 115
 116   Source      - Place to copy from
 117
 118   Length      - Number of bytes to copy
 119
 120 Returns:
 121
 122   None
 123
 124 --*/
 125 {
 126   CHAR8 *Destination8;
 127   CHAR8 *Source8;
 128
 129   Destination8  = Destination;
 130   Source8       = Source;
 131   while (Length--) {
 132     *(Destination8++) = *(Source8++);
 133   }
 134 }
 135
 136 BOOLEAN
 137 CompareGuid (
 138   IN EFI_GUID     *Guid1,
 139   IN EFI_GUID     *Guid2
 140   )
 141 /*++
 142
 143 Routine Description:
 144
 145   Compares two GUIDs
 146
 147 Arguments:
 148
 149   Guid1 - guid to compare
 150   Guid2 - guid to compare
 151
 152 Returns:
 153   = TRUE  if Guid1 == Guid2
 154   = FALSE if Guid1 != Guid2
 155
 156 --*/
 157 {
 158   if ((((INT32 *) Guid1)[0] - ((INT32 *) Guid2)[0]) == 0) {
 159     if ((((INT32 *) Guid1)[1] - ((INT32 *) Guid2)[1]) == 0) {
 160       if ((((INT32 *) Guid1)[2] - ((INT32 *) Guid2)[2]) == 0) {
 161         if ((((INT32 *) Guid1)[3] - ((INT32 *) Guid2)[3]) == 0) {
 162           return TRUE;
 163         }
 164       }
 165     }
 166   }
 167
 168   return FALSE;
 169 }