?? exception.h
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/*---------------------------------------------------------------------------+ | 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 __ASSEMBLY__#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 __ASSEMBLY__#ifdef DEBUG#define EXCEPTION(x) { printk("exception in %s at line %d\n", \ __FILE__, __LINE__); FPU_exception(x); }#else#define EXCEPTION(x) FPU_exception(x)#endif#endif /* __ASSEMBLY__ */ #endif /* _EXCEPTION_H_ */?? 快捷鍵說明
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