sysdeps/powerpc/sysdep.h

   1 /* Copyright (C) 1999, 2001, 2002 Free Software Foundation, Inc.
   2    This file is part of the GNU C Library.
   3
   4    The GNU C Library is free software; you can redistribute it and/or
   5    modify it under the terms of the GNU Lesser General Public
   6    License as published by the Free Software Foundation; either
   7    version 2.1 of the License, or (at your option) any later version.
   8
   9    The GNU C Library is distributed in the hope that it will be useful,
  10    but WITHOUT ANY WARRANTY; without even the implied warranty of
  11    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  12    Lesser General Public License for more details.
  13
  14    You should have received a copy of the GNU Lesser General Public
  15    License along with the GNU C Library; if not, write to the Free
  16    Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
  17    02111-1307 USA.  */
  18
  19 #ifdef __ASSEMBLER__
  20
  21 /* Symbolic names for the registers.  The only portable way to write asm
  22    code is to use number but this produces really unreadable code.
  23    Therefore these symbolic names.  */
  24
  25 /* Integer registers.  */
  26 #define r0      0
  27 #define r1      1
  28 #define r2      2
  29 #define r3      3
  30 #define r4      4
  31 #define r5      5
  32 #define r6      6
  33 #define r7      7
  34 #define r8      8
  35 #define r9      9
  36 #define r10     10
  37 #define r11     11
  38 #define r12     12
  39 #define r13     13
  40 #define r14     14
  41 #define r15     15
  42 #define r16     16
  43 #define r17     17
  44 #define r18     18
  45 #define r19     19
  46 #define r20     20
  47 #define r21     21
  48 #define r22     22
  49 #define r23     23
  50 #define r24     24
  51 #define r25     25
  52 #define r26     26
  53 #define r27     27
  54 #define r28     28
  55 #define r29     29
  56 #define r30     30
  57 #define r31     31
  58
  59 /* Floating-point registers.  */
  60 #define fp0     0
  61 #define fp1     1
  62 #define fp2     2
  63 #define fp3     3
  64 #define fp4     4
  65 #define fp5     5
  66 #define fp6     6
  67 #define fp7     7
  68 #define fp8     8
  69 #define fp9     9
  70 #define fp10    10
  71 #define fp11    11
  72 #define fp12    12
  73 #define fp13    13
  74 #define fp14    14
  75 #define fp15    15
  76 #define fp16    16
  77 #define fp17    17
  78 #define fp18    18
  79 #define fp19    19
  80 #define fp20    20
  81 #define fp21    21
  82 #define fp22    22
  83 #define fp23    23
  84 #define fp24    24
  85 #define fp25    25
  86 #define fp26    26
  87 #define fp27    27
  88 #define fp28    28
  89 #define fp29    29
  90 #define fp30    30
  91 #define fp31    31
  92
  93 /* Condition code registers.  */
  94 #define cr0     0
  95 #define cr1     1
  96 #define cr2     2
  97 #define cr3     3
  98 #define cr4     4
  99 #define cr5     5
 100 #define cr6     6
 101 #define cr7     7
 102
 103 /* Vector registers. */
 104 #define v0      0
 105 #define v1      1
 106 #define v2      2
 107 #define v3      3
 108 #define v4      4
 109 #define v5      5
 110 #define v6      6
 111 #define v7      7
 112 #define v8      8
 113 #define v9      9
 114 #define v10     10
 115 #define v11     11
 116 #define v12     12
 117 #define v13     13
 118 #define v14     14
 119 #define v15     15
 120 #define v16     16
 121 #define v17     17
 122 #define v18     18
 123 #define v19     19
 124 #define v20     20
 125 #define v21     21
 126 #define v22     22
 127 #define v23     23
 128 #define v24     24
 129 #define v25     25
 130 #define v26     26
 131 #define v27     27
 132 #define v28     28
 133 #define v29     29
 134 #define v30     30
 135 #define v31     31
 136
 137 #define VRSAVE  256
 138
 139
 140 #ifdef __ELF__
 141
 142 /* This seems to always be the case on PPC.  */
 143 #define ALIGNARG(log2) log2
 144 /* For ELF we need the `.type' directive to make shared libs work right.  */
 145 #define ASM_TYPE_DIRECTIVE(name,typearg) .type name,typearg;
 146 #define ASM_SIZE_DIRECTIVE(name) .size name,.-name
 147
 148 #endif /* __ELF__ */
 149
 150 /*
 151  * Powerpc Feature masks for the Aux Vector Hardware Capabilities (AT_HWCAP).
 152  * This entry is copied to _dl_hwcap or rtld_global._dl_hwcap during startup.
 153  * The following must match the kernels linux/asm/cputable.h.
 154  */
 155 #define PPC_FEATURE_32                  0x80000000 /* 32-bit mode. */
 156 #define PPC_FEATURE_64                  0x40000000 /* 64-bit mode. */
 157 #define PPC_FEATURE_601_INSTR           0x20000000 /* 601 chip, Old POWER ISA.  */
 158 #define PPC_FEATURE_HAS_ALTIVEC         0x10000000 /* SIMD/Vector Unit.  */
 159 #define PPC_FEATURE_HAS_FPU             0x08000000 /* Floating Point Unit.  */
 160 #define PPC_FEATURE_HAS_MMU             0x04000000 /* Memory Management Unit.  */
 161 #define PPC_FEATURE_HAS_4xxMAC          0x02000000 /* 4xx Multiply Accumulator.  */
 162 #define PPC_FEATURE_UNIFIED_CACHE       0x01000000 /* Unified I/D cache.  */
 163
 164 #endif  /* __ASSEMBLER__ */