1*4882a593Smuzhiyun /* SPDX-License-Identifier: GPL-2.0 */ 2*4882a593Smuzhiyun /*---------------------------------------------------------------------------+ 3*4882a593Smuzhiyun | exception.h | 4*4882a593Smuzhiyun | | 5*4882a593Smuzhiyun | Copyright (C) 1992 W. Metzenthen, 22 Parker St, Ormond, Vic 3163, | 6*4882a593Smuzhiyun | Australia. E-mail billm@vaxc.cc.monash.edu.au | 7*4882a593Smuzhiyun | | 8*4882a593Smuzhiyun +---------------------------------------------------------------------------*/ 9*4882a593Smuzhiyun 10*4882a593Smuzhiyun #ifndef _EXCEPTION_H_ 11*4882a593Smuzhiyun #define _EXCEPTION_H_ 12*4882a593Smuzhiyun 13*4882a593Smuzhiyun #ifdef __ASSEMBLY__ 14*4882a593Smuzhiyun #define Const_(x) $##x 15*4882a593Smuzhiyun #else 16*4882a593Smuzhiyun #define Const_(x) x 17*4882a593Smuzhiyun #endif 18*4882a593Smuzhiyun 19*4882a593Smuzhiyun #ifndef SW_C1 20*4882a593Smuzhiyun #include "fpu_emu.h" 21*4882a593Smuzhiyun #endif /* SW_C1 */ 22*4882a593Smuzhiyun 23*4882a593Smuzhiyun #define FPU_BUSY Const_(0x8000) /* FPU busy bit (8087 compatibility) */ 24*4882a593Smuzhiyun #define EX_ErrorSummary Const_(0x0080) /* Error summary status */ 25*4882a593Smuzhiyun /* Special exceptions: */ 26*4882a593Smuzhiyun #define EX_INTERNAL Const_(0x8000) /* Internal error in wm-FPU-emu */ 27*4882a593Smuzhiyun #define EX_StackOver Const_(0x0041|SW_C1) /* stack overflow */ 28*4882a593Smuzhiyun #define EX_StackUnder Const_(0x0041) /* stack underflow */ 29*4882a593Smuzhiyun /* Exception flags: */ 30*4882a593Smuzhiyun #define EX_Precision Const_(0x0020) /* loss of precision */ 31*4882a593Smuzhiyun #define EX_Underflow Const_(0x0010) /* underflow */ 32*4882a593Smuzhiyun #define EX_Overflow Const_(0x0008) /* overflow */ 33*4882a593Smuzhiyun #define EX_ZeroDiv Const_(0x0004) /* divide by zero */ 34*4882a593Smuzhiyun #define EX_Denormal Const_(0x0002) /* denormalized operand */ 35*4882a593Smuzhiyun #define EX_Invalid Const_(0x0001) /* invalid operation */ 36*4882a593Smuzhiyun 37*4882a593Smuzhiyun #define PRECISION_LOST_UP Const_((EX_Precision | SW_C1)) 38*4882a593Smuzhiyun #define PRECISION_LOST_DOWN Const_(EX_Precision) 39*4882a593Smuzhiyun 40*4882a593Smuzhiyun #ifndef __ASSEMBLY__ 41*4882a593Smuzhiyun 42*4882a593Smuzhiyun #ifdef DEBUG 43*4882a593Smuzhiyun #define EXCEPTION(x) { printk("exception in %s at line %d\n", \ 44*4882a593Smuzhiyun __FILE__, __LINE__); FPU_exception(x); } 45*4882a593Smuzhiyun #else 46*4882a593Smuzhiyun #define EXCEPTION(x) FPU_exception(x) 47*4882a593Smuzhiyun #endif 48*4882a593Smuzhiyun 49*4882a593Smuzhiyun #endif /* __ASSEMBLY__ */ 50*4882a593Smuzhiyun 51*4882a593Smuzhiyun #endif /* _EXCEPTION_H_ */ 52