1 /* $NetBSD: cpuframe.h,v 1.10 2023/09/26 14:33:55 tsutsui Exp $ */ 2 3 /* 4 * Copyright (c) 1988 University of Utah. 5 * Copyright (c) 1982, 1990, 1993 6 * The Regents of the University of California. All rights reserved. 7 * 8 * This code is derived from software contributed to Berkeley by 9 * the Systems Programming Group of the University of Utah Computer 10 * Science Department. 11 * 12 * Redistribution and use in source and binary forms, with or without 13 * modification, are permitted provided that the following conditions 14 * are met: 15 * 1. Redistributions of source code must retain the above copyright 16 * notice, this list of conditions and the following disclaimer. 17 * 2. Redistributions in binary form must reproduce the above copyright 18 * notice, this list of conditions and the following disclaimer in the 19 * documentation and/or other materials provided with the distribution. 20 * 3. Neither the name of the University nor the names of its contributors 21 * may be used to endorse or promote products derived from this software 22 * without specific prior written permission. 23 * 24 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 25 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 26 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 27 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 28 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 29 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 30 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 31 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 32 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 33 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 34 * SUCH DAMAGE. 35 * 36 * from: Utah $Hdr: frame.h 1.8 92/12/20$ 37 * 38 * @(#)frame.h 8.1 (Berkeley) 6/10/93 39 */ 40 41 #ifndef _M68K_CPUFRAME_H_ 42 #define _M68K_CPUFRAME_H_ 43 44 struct frame { 45 struct trapframe { 46 int tf_regs[16]; 47 short tf_pad; 48 short tf_stackadj; 49 u_short tf_sr; 50 u_int tf_pc __packed; 51 u_short /* BITFIELDTYPE */ tf_format:4, 52 /* BITFIELDTYPE */ tf_vector:12; 53 } F_t; 54 union F_u { 55 struct fmt2 { 56 u_int f_iaddr; 57 } F_fmt2; 58 59 struct fmt3 { 60 u_int f_ea; 61 } F_fmt3; 62 63 struct fmt4 { 64 u_int f_fa; 65 u_int f_fslw; 66 /* for 060FP type 4 FP disabled frames: */ 67 #define f_fea f_fa 68 #define f_pcfi f_fslw 69 } F_fmt4; 70 71 struct fmt7 { 72 u_int f_ea; 73 u_short f_ssw; 74 u_short f_wb3s, f_wb2s, f_wb1s; 75 u_int f_fa; 76 u_int f_wb3a, f_wb3d; 77 u_int f_wb2a, f_wb2d; 78 u_int f_wb1a, f_wb1d; 79 #define f_pd0 f_wb1d 80 u_int f_pd1, f_pd2, f_pd3; 81 } F_fmt7; 82 83 struct fmt8 { 84 u_short f_ssw; 85 u_int f_accaddr; 86 u_short f_ir0; 87 u_short f_dob; 88 u_short f_ir1; 89 u_short f_dib; 90 u_short f_ir2; 91 u_short f_irc; 92 u_short f_maskpc; 93 u_short f_iregs[15]; 94 } __attribute__((packed)) F_fmt8; 95 96 struct fmt9 { 97 u_int f_iaddr; 98 u_short f_iregs[4]; 99 } F_fmt9; 100 101 struct fmtA { 102 u_short f_ir0; 103 u_short f_ssw; 104 u_short f_ipsc; 105 u_short f_ipsb; 106 u_int f_dcfa; 107 u_short f_ir1, f_ir2; 108 u_int f_dob; 109 u_short f_ir3, f_ir4; 110 } F_fmtA; 111 112 struct fmtB { 113 u_short f_ir0; 114 u_short f_ssw; 115 u_short f_ipsc; 116 u_short f_ipsb; 117 u_int f_dcfa; 118 u_short f_ir1, f_ir2; 119 u_int f_dob; 120 u_short f_ir3, f_ir4; 121 u_short f_ir5, f_ir6; 122 u_int f_sba; 123 u_short f_ir7, f_ir8; 124 u_int f_dib; 125 u_short f_iregs[22]; 126 } F_fmtB; 127 } F_u; 128 }; 129 130 #define f_regs F_t.tf_regs 131 #define f_stackadj F_t.tf_stackadj 132 #define f_sr F_t.tf_sr 133 #define f_pc F_t.tf_pc 134 #define f_format F_t.tf_format 135 #define f_vector F_t.tf_vector 136 #define f_fmt2 F_u.F_fmt2 137 #define f_fmt3 F_u.F_fmt3 138 #define f_fmt4 F_u.F_fmt4 139 #define f_fmt7 F_u.F_fmt7 140 #define f_fmt8 F_u.F_fmt8 141 #define f_fmt9 F_u.F_fmt9 142 #define f_fmtA F_u.F_fmtA 143 #define f_fmtB F_u.F_fmtB 144 145 struct switchframe { 146 u_int sf_pc; 147 }; 148 149 struct fpframe { 150 union FPF_u1 { 151 u_int FPF_null; 152 struct { 153 u_char FPF_version; 154 u_char FPF_fsize; 155 u_short FPF_res1; 156 } FPF_nonnull; 157 } FPF_u1; 158 union FPF_u2 { 159 struct fpidle { 160 u_short fpf_ccr; 161 u_short fpf_res2; 162 u_int fpf_iregs1[8]; 163 u_int fpf_xops[3]; 164 u_int fpf_opreg; 165 u_int fpf_biu; 166 } FPF_idle; 167 168 struct fpbusy { 169 u_int fpf_iregs[53]; 170 } FPF_busy; 171 172 struct fpunimp { 173 u_int fpf_state[10]; 174 } FPF_unimp; 175 } FPF_u2; 176 u_int fpf_regs[8*3]; 177 u_int fpf_fpcr; 178 u_int fpf_fpsr; 179 u_int fpf_fpiar; 180 }; 181 182 #define fpf_null FPF_u1.FPF_null 183 #define fpf_version FPF_u1.FPF_nonnull.FPF_version 184 #define fpf_fsize FPF_u1.FPF_nonnull.FPF_fsize 185 #define fpf_res1 FPF_u1.FPF_nonnull.FPF_res1 186 #define fpf_idle FPF_u2.FPF_idle 187 #define fpf_busy FPF_u2.FPF_busy 188 #define fpf_unimp FPF_u2.FPF_unimp 189 190 /* 191 * This is incompatible with the earlier one; especially, an earlier frame 192 * must not be FRESTOREd on a 060 or vv, because a frame error exception is 193 * not guaranteed. 194 */ 195 196 197 struct fpframe060 { 198 u_short fpf6_excp_exp; 199 u_char fpf6_frmfmt; 200 201 u_char fpf6_v; 202 203 u_long fpf6_upper, fpf6_lower; 204 }; 205 206 #endif /* _M68K_CPUFRAME_H_ */ 207