diff options
| author | Ralf Baechle <ralf@linux-mips.org> | 1995-11-14 08:00:00 +0000 |
|---|---|---|
| committer | <ralf@linux-mips.org> | 1995-11-14 08:00:00 +0000 |
| commit | e7c2a72e2680827d6a733931273a93461c0d8d1b (patch) | |
| tree | c9abeda78ef7504062bb2e816bcf3e3c9d680112 /arch/i386/math-emu/exception.h | |
| parent | ec6044459060a8c9ce7f64405c465d141898548c (diff) | |
Import of Linux/MIPS 1.3.0
Diffstat (limited to 'arch/i386/math-emu/exception.h')
| -rw-r--r-- | arch/i386/math-emu/exception.h | 53 |
1 files changed, 53 insertions, 0 deletions
diff --git a/arch/i386/math-emu/exception.h b/arch/i386/math-emu/exception.h new file mode 100644 index 000000000..2e629a30c --- /dev/null +++ b/arch/i386/math-emu/exception.h @@ -0,0 +1,53 @@ +/*---------------------------------------------------------------------------+ + | exception.h | + | | + | Copyright (C) 1992 W. Metzenthen, 22 Parker St, Ormond, Vic 3163, | + | Australia. E-mail billm@vaxc.cc.monash.edu.au | + | | + +---------------------------------------------------------------------------*/ + +#ifndef _EXCEPTION_H_ +#define _EXCEPTION_H_ + + +#ifdef __ASSEMBLER__ +#define Const_(x) $##x +#else +#define Const_(x) x +#endif + +#ifndef SW_C1 +#include "fpu_emu.h" +#endif SW_C1 + +#define FPU_BUSY Const_(0x8000) /* FPU busy bit (8087 compatibility) */ +#define EX_ErrorSummary Const_(0x0080) /* Error summary status */ +/* Special exceptions: */ +#define EX_INTERNAL Const_(0x8000) /* Internal error in wm-FPU-emu */ +#define EX_StackOver Const_(0x0041|SW_C1) /* stack overflow */ +#define EX_StackUnder Const_(0x0041) /* stack underflow */ +/* Exception flags: */ +#define EX_Precision Const_(0x0020) /* loss of precision */ +#define EX_Underflow Const_(0x0010) /* underflow */ +#define EX_Overflow Const_(0x0008) /* overflow */ +#define EX_ZeroDiv Const_(0x0004) /* divide by zero */ +#define EX_Denormal Const_(0x0002) /* denormalized operand */ +#define EX_Invalid Const_(0x0001) /* invalid operation */ + + +#define PRECISION_LOST_UP Const_((EX_Precision | SW_C1)) +#define PRECISION_LOST_DOWN Const_(EX_Precision) + + +#ifndef __ASSEMBLER__ + +#ifdef DEBUG +#define EXCEPTION(x) { printk("exception in %s at line %d\n", \ + __FILE__, __LINE__); exception(x); } +#else +#define EXCEPTION(x) exception(x) +#endif + +#endif __ASSEMBLER__ + +#endif _EXCEPTION_H_ |