LXR linux/arch/alpha/include/uapi/asm/regdef.h

   1/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
   2#ifndef __alpha_regdef_h__
   3#define __alpha_regdef_h__
   4
   5#define v0      $0      /* function return value */
   6
   7#define t0      $1      /* temporary registers (caller-saved) */
   8#define t1      $2
   9#define t2      $3
  10#define t3      $4
  11#define t4      $5
  12#define t5      $6
  13#define t6      $7
  14#define t7      $8
  15
  16#define s0      $9      /* saved-registers (callee-saved registers) */
  17#define s1      $10
  18#define s2      $11
  19#define s3      $12
  20#define s4      $13
  21#define s5      $14
  22#define s6      $15
  23#define fp      s6      /* frame-pointer (s6 in frame-less procedures) */
  24
  25#define a0      $16     /* argument registers (caller-saved) */
  26#define a1      $17
  27#define a2      $18
  28#define a3      $19
  29#define a4      $20
  30#define a5      $21
  31
  32#define t8      $22     /* more temps (caller-saved) */
  33#define t9      $23
  34#define t10     $24
  35#define t11     $25
  36#define ra      $26     /* return address register */
  37#define t12     $27
  38
  39#define pv      t12     /* procedure-variable register */
  40#define AT      $at     /* assembler temporary */
  41#define gp      $29     /* global pointer */
  42#define sp      $30     /* stack pointer */
  43#define zero    $31     /* reads as zero, writes are noops */
  44
  45#endif /* __alpha_regdef_h__ */
  46