50 lines
1.2 KiB
C
50 lines
1.2 KiB
C
/* @(#)scb.h 1.1 92/07/30 SMI */
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#ifndef _sun4c_scb_h
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#define _sun4c_scb_h
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/*
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* Copyright (c) 1988 by Sun Microsystems, Inc.
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*/
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#define VEC_MIN 64
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#define VEC_MAX 255
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#define AUTOBASE 16 /* base for autovectored ints */
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#ifndef LOCORE
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typedef struct trapvec {
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int instr[4];
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} trapvec;
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/*
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* Sparc System control block layout
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*/
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struct scb {
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trapvec reset; /* 0 reset */
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trapvec inst_access; /* 1 instruction access */
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trapvec illegal_inst; /* 2 illegal instruction */
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trapvec priv_inst; /* 3 privilegded instruction */
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trapvec fp_disabled; /* 4 floating point desabled */
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trapvec window_overflow; /* 5 window overflow */
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trapvec window_underflow; /* 6 window underflow */
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trapvec alignment_excp; /* 7 alignment */
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trapvec fp_exception; /* 8 floating point exception */
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trapvec data_acess; /* 9 protection violation */
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trapvec tag_overflow; /* 10 tag overflow taddtv */
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trapvec reserved[5]; /* 11 - 15 */
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trapvec stray; /* 16 spurious */
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trapvec interrupts[15]; /* 17 - 31 autovectors */
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trapvec impossible[96]; /* 32 - 127 "cannot happen" */
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trapvec user_trap[128]; /* 128 - 255 */
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};
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#ifdef KERNEL
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extern struct scb scb;
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#endif KERNEL
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#endif !LOCORE
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#endif /* !_sun4c_scb_h */
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