arch/i386-all/include/aros/cpucontext.h

   1 #ifndef AROS_I386_CPUCONTEXT_H
   2 #define AROS_I386_CPUCONTEXT_H
   3
   4 /*
   5     Copyright © 1995-2010, The AROS Development Team. All rights reserved.
   6     $Id$
   7
   8     Desc: CPU context definition for x86 processors
   9     Lang: english
  10 */
  11
  12 typedef struct
  13 {
  14     UBYTE data[10];
  15 } FPUReg;
  16
  17 struct FPUContext
  18 {
  19     ULONG  fcw;
  20     ULONG  fsw;
  21     ULONG  ftw;
  22     ULONG  ip;
  23     ULONG  cs;
  24     ULONG  dp;
  25     ULONG  ds;
  26     FPUReg r[8];
  27 };
  28
  29 typedef struct
  30 {
  31     UBYTE data[10];
  32     UBYTE pad[6];
  33 } MMReg;
  34
  35 typedef struct
  36 {
  37     UBYTE data[16];
  38 } XMMReg;
  39
  40 struct FPXContext
  41 {
  42     UWORD  fcw;
  43     UWORD  fsw;
  44     UWORD  ftw;
  45     UWORD  fop;
  46     ULONG  ip;
  47     ULONG  cs;
  48     ULONG  dp;
  49     ULONG  ds;
  50     ULONG  mxcsr;
  51     ULONG  pad;
  52     MMReg  mm[8];
  53     XMMReg xmm[8];
  54     XMMReg reserved[14];
  55 };
  56
  57 struct ExceptionContext
  58 {
  59     ULONG Flags;        /* Context flags                */
  60     ULONG eax;
  61     ULONG ebx;
  62     ULONG ecx;
  63     ULONG edx;
  64     ULONG esi;
  65     ULONG edi;
  66     ULONG ebp;
  67     ULONG ds;
  68     ULONG es;
  69     ULONG fs;
  70     ULONG gs;
  71     ULONG eip;
  72     ULONG cs;
  73     ULONG eflags;
  74     ULONG esp;
  75     ULONG ss;
  76
  77     struct FPUContext *FPData;  /* Pointer to 8087 FPU context area     */
  78     struct FPXContext *FXData;  /* Pointer to SSE context area          */
  79 };
  80
  81 enum enECFlags
  82 {
  83     ECF_SEGMENTS = 1<<0, /* Segment registers are present */
  84     ECF_FPU      = 1<<1, /* 8087 FPU context is present   */
  85     ECF_FPX      = 1<<2, /* SSE context is present        */
  86 };
  87
  88 #endif