sysdeps/mips/sys/regdef.h

   1 /* Copyright (C) 1997, 1998 Free Software Foundation, Inc.
   2    This file is part of the GNU C Library.
   3    Contributed by Ralf Baechle <ralf@gnu.org>.
   4
   5    The GNU C Library is free software; you can redistribute it and/or
   6    modify it under the terms of the GNU Library General Public License as
   7    published by the Free Software Foundation; either version 2 of the
   8    License, or (at your option) any later version.
   9
  10    The GNU C Library is distributed in the hope that it will be useful,
  11    but WITHOUT ANY WARRANTY; without even the implied warranty of
  12    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  13    Library General Public License for more details.
  14
  15    You should have received a copy of the GNU Library General Public
  16    License along with the GNU C Library; see the file COPYING.LIB.  If not,
  17    write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
  18    Boston, MA 02111-1307, USA.  */
  19
  20 #ifndef _SYS_REGDEF_H
  21 #define _SYS_REGDEF_H
  22
  23 /*
  24  * Symbolic register names for 32 bit ABI
  25  */
  26 #define zero    $0      /* wired zero */
  27 #define AT      $1      /* assembler temp  - uppercase because of ".set at" */
  28 #define v0      $2      /* return value */
  29 #define v1      $3
  30 #define a0      $4      /* argument registers */
  31 #define a1      $5
  32 #define a2      $6
  33 #define a3      $7
  34 #define t0      $8      /* caller saved */
  35 #define t1      $9
  36 #define t2      $10
  37 #define t3      $11
  38 #define t4      $12
  39 #define t5      $13
  40 #define t6      $14
  41 #define t7      $15
  42 #define s0      $16     /* callee saved */
  43 #define s1      $17
  44 #define s2      $18
  45 #define s3      $19
  46 #define s4      $20
  47 #define s5      $21
  48 #define s6      $22
  49 #define s7      $23
  50 #define t8      $24     /* caller saved */
  51 #define t9      $25
  52 #define jp      $25     /* PIC jump register */
  53 #define k0      $26     /* kernel scratch */
  54 #define k1      $27
  55 #define gp      $28     /* global pointer */
  56 #define sp      $29     /* stack pointer */
  57 #define fp      $30     /* frame pointer */
  58 #define s8      $30     /* same like fp! */
  59 #define ra      $31     /* return address */
  60
  61 #endif /* _SYS_REGDEF_H */