sys/arch/m68k/include/cpuframe.h

   1 /*      $NetBSD: cpuframe.h,v 1.3.4.3 2004/09/21 13:17:35 skrll Exp $   */
   2
   3 /*
   4  * Copyright (c) 1982, 1990, 1993
   5  *      The Regents of the University of California.  All rights reserved.
   6  *
   7  * This code is derived from software contributed to Berkeley by
   8  * the Systems Programming Group of the University of Utah Computer
   9  * Science Department.
  10  *
  11  * Redistribution and use in source and binary forms, with or without
  12  * modification, are permitted provided that the following conditions
  13  * are met:
  14  * 1. Redistributions of source code must retain the above copyright
  15  *    notice, this list of conditions and the following disclaimer.
  16  * 2. Redistributions in binary form must reproduce the above copyright
  17  *    notice, this list of conditions and the following disclaimer in the
  18  *    documentation and/or other materials provided with the distribution.
  19  * 3. Neither the name of the University nor the names of its contributors
  20  *    may be used to endorse or promote products derived from this software
  21  *    without specific prior written permission.
  22  *
  23  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
  24  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  25  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  26  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
  27  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  28  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  29  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  30  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  31  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  32  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  33  * SUCH DAMAGE.
  34  *
  35  * from: Utah $Hdr: frame.h 1.8 92/12/20$
  36  *
  37  *      @(#)frame.h     8.1 (Berkeley) 6/10/93
  38  */
  39 /*
  40  * Copyright (c) 1988 University of Utah.
  41  *
  42  * This code is derived from software contributed to Berkeley by
  43  * the Systems Programming Group of the University of Utah Computer
  44  * Science Department.
  45  *
  46  * Redistribution and use in source and binary forms, with or without
  47  * modification, are permitted provided that the following conditions
  48  * are met:
  49  * 1. Redistributions of source code must retain the above copyright
  50  *    notice, this list of conditions and the following disclaimer.
  51  * 2. Redistributions in binary form must reproduce the above copyright
  52  *    notice, this list of conditions and the following disclaimer in the
  53  *    documentation and/or other materials provided with the distribution.
  54  * 3. All advertising materials mentioning features or use of this software
  55  *    must display the following acknowledgement:
  56  *      This product includes software developed by the University of
  57  *      California, Berkeley and its contributors.
  58  * 4. Neither the name of the University nor the names of its contributors
  59  *    may be used to endorse or promote products derived from this software
  60  *    without specific prior written permission.
  61  *
  62  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
  63  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  64  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  65  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
  66  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  67  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  68  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  69  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  70  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  71  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  72  * SUCH DAMAGE.
  73  *
  74  * from: Utah $Hdr: frame.h 1.8 92/12/20$
  75  *
  76  *      @(#)frame.h     8.1 (Berkeley) 6/10/93
  77  */
  78
  79 #ifndef _M68K_CPUFRAME_H_
  80 #define _M68K_CPUFRAME_H_
  81
  82 struct frame {
  83         struct trapframe {
  84                 int     tf_regs[16];
  85                 short   tf_pad;
  86                 short   tf_stackadj;
  87                 u_short tf_sr;
  88                 u_int   tf_pc;
  89                 u_short /* BITFIELDTYPE */ tf_format:4,
  90                         /* BITFIELDTYPE */ tf_vector:12;
  91         } __attribute__((packed)) F_t;
  92         union F_u {
  93                 struct fmt2 {
  94                         u_int   f_iaddr;
  95                 } F_fmt2;
  96
  97                 struct fmt3 {
  98                         u_int   f_ea;
  99                 } F_fmt3;
 100
 101                 struct fmt4 {
 102                         u_int   f_fa;
 103                         u_int   f_fslw;
 104                         /* for 060FP type 4 FP disabled frames: */
 105 #define                 f_fea   f_fa
 106 #define                 f_pcfi  f_fslw
 107                 } F_fmt4;
 108
 109                 struct fmt7 {
 110                         u_int   f_ea;
 111                         u_short f_ssw;
 112                         u_short f_wb3s, f_wb2s, f_wb1s;
 113                         u_int   f_fa;
 114                         u_int   f_wb3a, f_wb3d;
 115                         u_int   f_wb2a, f_wb2d;
 116                         u_int   f_wb1a, f_wb1d;
 117 #define                         f_pd0 f_wb1d
 118                         u_int   f_pd1, f_pd2, f_pd3;
 119                 } F_fmt7;
 120
 121                 struct fmt8 {
 122                         u_short f_ssw;
 123                         u_int   f_accaddr;
 124                         u_short f_ir0;
 125                         u_short f_dob;
 126                         u_short f_ir1;
 127                         u_short f_dib;
 128                         u_short f_ir2;
 129                         u_short f_irc;
 130                         u_short f_maskpc;
 131                         u_short f_iregs[15];
 132                 } __attribute__((packed)) F_fmt8;
 133
 134                 struct fmt9 {
 135                         u_int   f_iaddr;
 136                         u_short f_iregs[4];
 137                 } F_fmt9;
 138
 139                 struct fmtA {
 140                         u_short f_ir0;
 141                         u_short f_ssw;
 142                         u_short f_ipsc;
 143                         u_short f_ipsb;
 144                         u_int   f_dcfa;
 145                         u_short f_ir1, f_ir2;
 146                         u_int   f_dob;
 147                         u_short f_ir3, f_ir4;
 148                 } F_fmtA;
 149
 150                 struct fmtB {
 151                         u_short f_ir0;
 152                         u_short f_ssw;
 153                         u_short f_ipsc;
 154                         u_short f_ipsb;
 155                         u_int   f_dcfa;
 156                         u_short f_ir1, f_ir2;
 157                         u_int   f_dob;
 158                         u_short f_ir3, f_ir4;
 159                         u_short f_ir5, f_ir6;
 160                         u_int   f_sba;
 161                         u_short f_ir7, f_ir8;
 162                         u_int   f_dib;
 163                         u_short f_iregs[22];
 164                 } F_fmtB;
 165         } F_u;
 166 };
 167
 168 #define f_regs          F_t.tf_regs
 169 #define f_pad           F_t.tf_pad
 170 #define f_stackadj      F_t.tf_stackadj
 171 #define f_sr            F_t.tf_sr
 172 #define f_pc            F_t.tf_pc
 173 #define f_format        F_t.tf_format
 174 #define f_vector        F_t.tf_vector
 175 #define f_fmt2          F_u.F_fmt2
 176 #define f_fmt3          F_u.F_fmt3
 177 #define f_fmt4          F_u.F_fmt4
 178 #define f_fmt7          F_u.F_fmt7
 179 #define f_fmt8          F_u.F_fmt8
 180 #define f_fmt9          F_u.F_fmt9
 181 #define f_fmtA          F_u.F_fmtA
 182 #define f_fmtB          F_u.F_fmtB
 183
 184 struct switchframe {
 185         u_int   sf_pc;
 186 };
 187
 188 struct fpframe {
 189         union FPF_u1 {
 190                 u_int   FPF_null;
 191                 struct {
 192                         u_char  FPF_version;
 193                         u_char  FPF_fsize;
 194                         u_short FPF_res1;
 195                 } FPF_nonnull;
 196         } FPF_u1;
 197         union FPF_u2 {
 198                 struct fpidle {
 199                         u_short fpf_ccr;
 200                         u_short fpf_res2;
 201                         u_int   fpf_iregs1[8];
 202                         u_int   fpf_xops[3];
 203                         u_int   fpf_opreg;
 204                         u_int   fpf_biu;
 205                 } FPF_idle;
 206
 207                 struct fpbusy {
 208                         u_int   fpf_iregs[53];
 209                 } FPF_busy;
 210
 211                 struct fpunimp {
 212                         u_int   fpf_state[10];
 213                 } FPF_unimp;
 214         } FPF_u2;
 215         u_int   fpf_regs[8*3];
 216         u_int   fpf_fpcr;
 217         u_int   fpf_fpsr;
 218         u_int   fpf_fpiar;
 219 };
 220
 221 #define fpf_null        FPF_u1.FPF_null
 222 #define fpf_version     FPF_u1.FPF_nonnull.FPF_version
 223 #define fpf_fsize       FPF_u1.FPF_nonnull.FPF_fsize
 224 #define fpf_res1        FPF_u1.FPF_nonnull.FPF_res1
 225 #define fpf_idle        FPF_u2.FPF_idle
 226 #define fpf_busy        FPF_u2.FPF_busy
 227 #define fpf_unimp       FPF_u2.FPF_unimp
 228
 229 /*
 230  * This is incompatible with the earlier one; expecially, an earlier frame
 231  * must not be FRESTOREd on a 060 or vv, because a frame error exception is
 232  * not guaranteed.
 233  */
 234
 235
 236 struct fpframe060 {
 237         u_short fpf6_excp_exp;
 238         u_char  fpf6_frmfmt;
 239
 240         u_char  fpf6_v;
 241
 242         u_long  fpf6_upper, fpf6_lower;
 243 };
 244
 245 #endif  /* _M68K_CPUFRAME_H_ */