kernel/FPU-emu/exception.h

/* */
   1 /*---------------------------------------------------------------------------+
   2  |  exception.h                                                              |
   3  |                                                                           |
   4  | Copyright (C) 1992    W. Metzenthen, 22 Parker St, Ormond, Vic 3163,      |
   5  |                       Australia.  E-mail apm233m@vaxc.cc.monash.edu.au    |
   6  |                                                                           |
   7  +---------------------------------------------------------------------------*/
   8 
   9 #ifndef _EXCEPTION_H_
  10 #define _EXCEPTION_H_
  11 
  12 
  13 #ifdef __ASSEMBLER__
  14 #define Const_(x)       $##x
  15 #else
  16 #define Const_(x)       x
  17 #endif
  18 
  19 #ifndef SW_C1
  20 #include "fpu_emu.h"
  21 #endif SW_C1
  22 
  23 #define FPU_BUSY        Const_(0x8000)   /* FPU busy bit (8087 compatibility) */
  24 #define EX_ErrorSummary Const_(0x0080)   /* Error summary status */
  25 /* Special exceptions: */
  26 #define EX_INTERNAL     Const_(0x8000)  /* Internal error in wm-FPU-emu */
  27 #define EX_StackOver    Const_(0x0041|SW_C1)    /* stack overflow */
  28 #define EX_StackUnder   Const_(0x0041)  /* stack underflow */
  29 /* Exception flags: */
  30 #define EX_Precision    Const_(0x0020)  /* loss of precision */
  31 #define EX_Underflow    Const_(0x0010)  /* underflow */
  32 #define EX_Overflow     Const_(0x0008)  /* overflow */
  33 #define EX_ZeroDiv      Const_(0x0004)  /* divide by zero */
  34 #define EX_Denormal     Const_(0x0002)  /* denormalized operand */
  35 #define EX_Invalid      Const_(0x0001)  /* invalid operation */
  36 
  37 
  38 #ifndef __ASSEMBLER__
  39 
  40 #ifdef DEBUG
  41 #define EXCEPTION(x)    { printk("exception in %s at line %d\n", \
  42         __FILE__, __LINE__); exception(x); }
  43 #else
  44 #define EXCEPTION(x)    exception(x)
  45 #endif
  46 
  47 #endif __ASSEMBLER__
  48 
  49 #endif _EXCEPTION_H_
/* */
root/kernel/FPU-emu/exception.h

INCLUDED FROM
