arch/ppc-all/include/aros/cpucontext.h

   1 #ifndef AROS_PPC_CPUCONTEXT_H
   2 #define AROS_PPC_CPUCONTEXT_H
   3
   4 /*
   5     Copyright © 1995-2010, The AROS Development Team. All rights reserved.
   6     $Id$
   7
   8     Desc: CPU context definition for PowerPC processors
   9     Lang: english
  10 */
  11
  12 /* The following definitions are source-compatible with AmigaOS 4 */
  13
  14 struct ExceptionContext
  15 {
  16     ULONG  Flags;
  17     ULONG  Traptype;
  18     ULONG  msr;         /* Machine state                */
  19     ULONG  ip;          /* Return instruction pointer   */
  20     ULONG  gpr[32];
  21     ULONG  cr;          /* Condition codes              */
  22     ULONG  xer;         /* Extended exception register  */
  23     ULONG  ctr;         /* Count register               */
  24     ULONG  lr;          /* Link register                */
  25     ULONG  dsisr;       /* DSI status                   */
  26     ULONG  dar;         /* Data address                 */
  27     /* FPU context */
  28     double fpr[32];
  29     UQUAD  fpscr;       /* Status and control           */
  30     /* AltiVec context */
  31     UBYTE  vscr[16];    /* Status and control           */
  32     UBYTE  vr[512];
  33     ULONG  vrsave;
  34 };
  35
  36 enum enECFlags
  37 {
  38     ECF_FULL_GPRS = 1<<0, /* GPR 14-31 are present         */
  39     ECF_FPU       = 1<<1, /* FPU reisters are present      */
  40     ECF_FULL_FPU  = 1<<2, /* FPSCR is present              */
  41     ECF_VECTOR    = 1<<3, /* AltiVec registers are present */
  42     ECF_VRSAVE    = 1<<4  /* VRSAVE is present             */
  43 };
  44
  45 #endif