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

   1 #ifndef AROS_ARM_CPUCONTEXT_H
   2 #define AROS_ARM_CPUCONTEXT_H
   3
   4 /*
   5     Copyright © 1995-2010, The AROS Development Team. All rights reserved.
   6     $Id$
   7
   8     Desc: CPU context definition for ARM processors
   9     Lang: english
  10 */
  11
  12 struct ExceptionContext
  13 {
  14     ULONG r[12];        /* General purpose registers    */
  15     ULONG ip;           /* r12                          */
  16     ULONG sp;           /* r13                          */
  17     ULONG lr;           /* r14                          */
  18     ULONG pc;           /* r15                          */
  19     ULONG cpsr;
  20     UWORD Flags;        /* Currently reserved           */
  21     UBYTE FPUType;      /* FPU type (see below)         */
  22     UBYTE Reserved;     /* Unused                       */
  23     APTR  fpuContext;   /* Pointer to FPU context area  */
  24 };
  25
  26 /* CPU modes */
  27 #define CPUMODE_USER            0x10
  28 #define CPUMODE_FIQ             0x11
  29 #define CPUMODE_IRQ             0x12
  30 #define CPUMODE_SUPERVISOR      0x13
  31 #define CPUMODE_ABORT           0x17
  32 #define CPUMODE_UNDEF           0x1B
  33 #define CPUMODE_SYSTEM          0x1F
  34
  35 #define CPUMODE_MASK            0x1F
  36
  37 #define CPUMODE_IRQENABLED      (1 << 7)
  38
  39 /* Flags */
  40 enum enECFlags
  41 {
  42     ECF_FPU = 1<<0              /* FPU data is present */
  43 };
  44
  45 /* FPU types */
  46 #define FPU_NONE                0
  47 #define FPU_AFP                 1
  48 #define FPU_VFP                 2
  49
  50 /* VFP context */
  51 struct VFPContext
  52 {
  53     ULONG fpr[64];
  54     ULONG fpscr;
  55 };
  56
  57 #endif