/* SPDX-License-Identifier: GPL-2.0 */ /*---------------------------------------------------------------------------+ | 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_ */