qemu/roms/SLOF/include/macros.h

   1 /******************************************************************************
   2  * Copyright (c) 2004, 2008 IBM Corporation
   3  * All rights reserved.
   4  * This program and the accompanying materials
   5  * are made available under the terms of the BSD License
   6  * which accompanies this distribution, and is available at
   7  * http://www.opensource.org/licenses/bsd-license.php
   8  *
   9  * Contributors:
  10  *     IBM Corporation - initial implementation
  11  *****************************************************************************/
  12
  13 #define LOAD64(rn,name)                 \
  14         lis     rn,name##@highest;      \
  15         ori     rn,rn,name##@higher;    \
  16         rldicr  rn,rn,32,31;            \
  17         oris    rn,rn,name##@h;         \
  18         ori     rn,rn,name##@l
  19
  20 #define LOAD32(rn, name)                \
  21         lis     rn,name##@h;            \
  22         ori     rn,rn,name##@l
  23
  24 // load 32 bit constant in little endian order
  25 #define LOAD32le(rn,name) \
  26         lis     rn,(((name>>8)&0x00FF)|((name<<8)&0xFF00));  \
  27         ori     rn,rn,(((name>>24)&0x00FF)|((name>>8)&0xFF00))
  28
  29 // load 16 bit constant in little endian order
  30 #define LOAD16le(rn,name) \
  31         li      rn,(((name>>8)&0x00FF)|((name<<8)&0xFF00))
  32
  33 #define ENTRY(func_name)              \
  34         .text;                        \
  35         .align  2;                    \
  36         .globl  .func_name;           \
  37         .func_name:                   \
  38         .globl  func_name;            \
  39         func_name:
  40
  41 #define C_ENTRY(func_name)                      \
  42         .section        ".text";                \
  43         .align 2;                               \
  44         .globl func_name;                       \
  45         .section        ".opd","aw";            \
  46         .align 3;                               \
  47  func_name:                                     \
  48         .quad   .func_name,.TOC.@tocbase,0;     \
  49         .previous;                              \
  50         .size   func_name,24;                   \
  51         .type   .func_name,@function;           \
  52         .globl  .func_name;                     \
  53  .func_name:
  54
  55 #define ASM_ENTRY(fn)   \
  56         .globl  fn;     \
  57 fn:
  58