208 lines
5.0 KiB
C
208 lines
5.0 KiB
C
/* $NetBSD: cpuframe.h,v 1.5 2011/02/08 20:20:16 rmind Exp $ */
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/*
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* Copyright (c) 1988 University of Utah.
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* Copyright (c) 1982, 1990, 1993
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* The Regents of the University of California. All rights reserved.
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*
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* This code is derived from software contributed to Berkeley by
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* the Systems Programming Group of the University of Utah Computer
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* Science Department.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. Neither the name of the University nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* from: Utah $Hdr: frame.h 1.8 92/12/20$
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*
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* @(#)frame.h 8.1 (Berkeley) 6/10/93
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*/
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#ifndef _M68K_CPUFRAME_H_
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#define _M68K_CPUFRAME_H_
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struct frame {
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struct trapframe {
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int tf_regs[16];
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short tf_pad;
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short tf_stackadj;
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u_short tf_sr;
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u_int tf_pc;
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u_short /* BITFIELDTYPE */ tf_format:4,
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/* BITFIELDTYPE */ tf_vector:12;
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} __attribute__((packed)) F_t;
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union F_u {
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struct fmt2 {
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u_int f_iaddr;
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} F_fmt2;
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struct fmt3 {
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u_int f_ea;
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} F_fmt3;
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struct fmt4 {
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u_int f_fa;
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u_int f_fslw;
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/* for 060FP type 4 FP disabled frames: */
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#define f_fea f_fa
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#define f_pcfi f_fslw
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} F_fmt4;
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struct fmt7 {
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u_int f_ea;
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u_short f_ssw;
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u_short f_wb3s, f_wb2s, f_wb1s;
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u_int f_fa;
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u_int f_wb3a, f_wb3d;
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u_int f_wb2a, f_wb2d;
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u_int f_wb1a, f_wb1d;
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#define f_pd0 f_wb1d
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u_int f_pd1, f_pd2, f_pd3;
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} F_fmt7;
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struct fmt8 {
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u_short f_ssw;
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u_int f_accaddr;
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u_short f_ir0;
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u_short f_dob;
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u_short f_ir1;
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u_short f_dib;
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u_short f_ir2;
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u_short f_irc;
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u_short f_maskpc;
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u_short f_iregs[15];
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} __attribute__((packed)) F_fmt8;
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struct fmt9 {
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u_int f_iaddr;
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u_short f_iregs[4];
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} F_fmt9;
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struct fmtA {
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u_short f_ir0;
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u_short f_ssw;
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u_short f_ipsc;
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u_short f_ipsb;
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u_int f_dcfa;
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u_short f_ir1, f_ir2;
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u_int f_dob;
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u_short f_ir3, f_ir4;
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} F_fmtA;
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struct fmtB {
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u_short f_ir0;
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u_short f_ssw;
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u_short f_ipsc;
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u_short f_ipsb;
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u_int f_dcfa;
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u_short f_ir1, f_ir2;
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u_int f_dob;
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u_short f_ir3, f_ir4;
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u_short f_ir5, f_ir6;
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u_int f_sba;
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u_short f_ir7, f_ir8;
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u_int f_dib;
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u_short f_iregs[22];
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} F_fmtB;
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} F_u;
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};
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#define f_regs F_t.tf_regs
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#define f_pad F_t.tf_pad
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#define f_stackadj F_t.tf_stackadj
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#define f_sr F_t.tf_sr
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#define f_pc F_t.tf_pc
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#define f_format F_t.tf_format
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#define f_vector F_t.tf_vector
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#define f_fmt2 F_u.F_fmt2
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#define f_fmt3 F_u.F_fmt3
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#define f_fmt4 F_u.F_fmt4
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#define f_fmt7 F_u.F_fmt7
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#define f_fmt8 F_u.F_fmt8
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#define f_fmt9 F_u.F_fmt9
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#define f_fmtA F_u.F_fmtA
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#define f_fmtB F_u.F_fmtB
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struct switchframe {
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u_int sf_pc;
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};
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struct fpframe {
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union FPF_u1 {
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u_int FPF_null;
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struct {
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u_char FPF_version;
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u_char FPF_fsize;
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u_short FPF_res1;
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} FPF_nonnull;
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} FPF_u1;
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union FPF_u2 {
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struct fpidle {
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u_short fpf_ccr;
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u_short fpf_res2;
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u_int fpf_iregs1[8];
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u_int fpf_xops[3];
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u_int fpf_opreg;
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u_int fpf_biu;
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} FPF_idle;
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struct fpbusy {
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u_int fpf_iregs[53];
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} FPF_busy;
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struct fpunimp {
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u_int fpf_state[10];
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} FPF_unimp;
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} FPF_u2;
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u_int fpf_regs[8*3];
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u_int fpf_fpcr;
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u_int fpf_fpsr;
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u_int fpf_fpiar;
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};
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#define fpf_null FPF_u1.FPF_null
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#define fpf_version FPF_u1.FPF_nonnull.FPF_version
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#define fpf_fsize FPF_u1.FPF_nonnull.FPF_fsize
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#define fpf_res1 FPF_u1.FPF_nonnull.FPF_res1
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#define fpf_idle FPF_u2.FPF_idle
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#define fpf_busy FPF_u2.FPF_busy
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#define fpf_unimp FPF_u2.FPF_unimp
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/*
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* This is incompatible with the earlier one; expecially, an earlier frame
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* must not be FRESTOREd on a 060 or vv, because a frame error exception is
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* not guaranteed.
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*/
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struct fpframe060 {
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u_short fpf6_excp_exp;
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u_char fpf6_frmfmt;
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u_char fpf6_v;
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u_long fpf6_upper, fpf6_lower;
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};
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#endif /* _M68K_CPUFRAME_H_ */
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