/* $NetBSD: trap.h,v 1.24.84.1 2023/06/21 19:09:07 martin Exp $ */ /*- * Copyright (c) 1990 The Regents of the University of California. * All rights reserved. * * This code is derived from software contributed to Berkeley by * William Jolitz. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * 3. Neither the name of the University nor the names of its contributors * may be used to endorse or promote products derived from this software * without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF * SUCH DAMAGE. * * @(#)trap.h 5.4 (Berkeley) 5/9/91 */ /* * Trap type values * also known in trap.c for name strings */ #ifndef _VAX_TRAP_H_ #define _VAX_TRAP_H_ #define T_RESADFLT 0 /* reserved addressing */ #define T_PRIVINFLT 1 /* privileged instruction */ #define T_RESOPFLT 2 /* reserved operand */ #define T_BPTFLT 3 /* breakpoint instruction */ #define T_XFCFLT 4 /* Customer reserved instruction */ #define T_SYSCALL 5 /* system call (kcall) */ #define T_ARITHFLT 6 /* arithmetic trap */ #define T_ASTFLT 7 /* system forced exception */ #define T_PTELEN 8 /* Page table length exceeded */ #define T_TRANSFLT 9 /* translation fault */ #define T_TRCTRAP 10 /* trace trap */ #define T_COMPAT 11 /* compatibility mode fault on VAX */ #define T_ACCFLT 12 /* Access violation fault */ #define T_KSPNOTVAL 15 /* kernel stack pointer not valid */ #define T_KDBTRAP 17 /* kernel debugger trap */ /* These gets ORed with the word for page handling routines */ #define T_WRITE 0x80 #define T_PTEFETCH 0x40 /* Section 6.4.1 Arithmetic Traps/Faults */ #define ATRP_INTOVF 0x1 /* integer overflow */ #define ATRP_INTDIV 0x2 /* integer divide by zero */ #define ATRP_FLTOVF 0x3 /* floating overflow */ #define ATRP_FLTDIV 0x4 /* floating/decimal divide by zero */ #define ATRP_FLTUND 0x5 /* floating underflow */ #define ATRP_DECOVF 0x6 /* decimal underflow */ #define ATRP_FLTSUB 0x7 /* subscript range */ #define AFLT_FLTOVF 0x8 /* floating overflow */ #define AFLT_FLTDIV 0x9 /* floating divide-by-zero */ #define AFLT_FLTUND 0xa /* floating underflow */ /* Used by RAS to detect an interrupted CAS */ #define CASMAGIC 0xFEDABABE /* always invalid space */ /* Trap's coming from user mode */ #define T_USER 0x100 #ifndef _LOCORE struct trapframe { long tf_fp; /* Stack frame pointer */ long tf_ap; /* Argument pointer on user stack */ long tf_sp; /* Stack pointer */ long tf_r0; /* General registers saved upon trap/syscall */ long tf_r1; long tf_r2; long tf_r3; long tf_r4; long tf_r5; long tf_r6; long tf_r7; long tf_r8; long tf_r9; long tf_r10; long tf_r11; long tf_trap; /* Type of trap */ long tf_code; /* Trap specific code */ long tf_pc; /* User pc */ long tf_psl; /* User psl */ }; #endif /* _LOCORE */ #endif /* _VAX_TRAP_H_ */