| 1 | /* HP PA-RISC SOM object file format: definitions internal to BFD. |
| 2 | Copyright (C) 1990-1991 Free Software Foundation, Inc. |
| 3 | |
| 4 | Contributed by the Center for Software Science at the |
| 5 | University of Utah (pa-gdb-bugs@cs.utah.edu). |
| 6 | |
| 7 | This file is part of BFD, the Binary File Descriptor library. |
| 8 | |
| 9 | This program is free software; you can redistribute it and/or modify |
| 10 | it under the terms of the GNU General Public License as published by |
| 11 | the Free Software Foundation; either version 2 of the License, or |
| 12 | (at your option) any later version. |
| 13 | |
| 14 | This program is distributed in the hope that it will be useful, |
| 15 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 16 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 17 | GNU General Public License for more details. |
| 18 | |
| 19 | You should have received a copy of the GNU General Public License |
| 20 | along with this program; if not, write to the Free Software |
| 21 | Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */ |
| 22 | |
| 23 | #ifndef _HPPA_H |
| 24 | #define _HPPA_H |
| 25 | |
| 26 | #define BYTES_IN_WORD 4 |
| 27 | |
| 28 | #ifndef INLINE |
| 29 | #ifdef __GNUC__ |
| 30 | #define INLINE inline |
| 31 | #else |
| 32 | #define INLINE |
| 33 | #endif /* GNU C? */ |
| 34 | #endif /* INLINE */ |
| 35 | |
| 36 | /* HP PA-RISC relocation types */ |
| 37 | |
| 38 | enum hppa_reloc_field_selector_type |
| 39 | { |
| 40 | R_HPPA_FSEL = 0x0, |
| 41 | R_HPPA_LSSEL = 0x1, |
| 42 | R_HPPA_RSSEL = 0x2, |
| 43 | R_HPPA_LSEL = 0x3, |
| 44 | R_HPPA_RSEL = 0x4, |
| 45 | R_HPPA_LDSEL = 0x5, |
| 46 | R_HPPA_RDSEL = 0x6, |
| 47 | R_HPPA_LRSEL = 0x7, |
| 48 | R_HPPA_RRSEL = 0x8, |
| 49 | R_HPPA_PSEL = 0x9, |
| 50 | R_HPPA_LPSEL = 0xa, |
| 51 | R_HPPA_RPSEL = 0xb, |
| 52 | R_HPPA_TSEL = 0xc, |
| 53 | R_HPPA_LTSEL = 0xd, |
| 54 | R_HPPA_RTSEL = 0xe |
| 55 | }; |
| 56 | |
| 57 | /* /usr/include/reloc.h defines these to constants. We want to use |
| 58 | them in enums, so #undef them before we start using them. We might |
| 59 | be able to fix this another way by simply managing not to include |
| 60 | /usr/include/reloc.h, but currently GDB picks up these defines |
| 61 | somewhere. */ |
| 62 | #undef e_fsel |
| 63 | #undef e_lssel |
| 64 | #undef e_rssel |
| 65 | #undef e_lsel |
| 66 | #undef e_rsel |
| 67 | #undef e_ldsel |
| 68 | #undef e_rdsel |
| 69 | #undef e_lrsel |
| 70 | #undef e_rrsel |
| 71 | #undef e_psel |
| 72 | #undef e_lpsel |
| 73 | #undef e_rpsel |
| 74 | #undef e_tsel |
| 75 | #undef e_ltsel |
| 76 | #undef e_rtsel |
| 77 | #undef e_one |
| 78 | #undef e_two |
| 79 | #undef e_pcrel |
| 80 | #undef e_con |
| 81 | #undef e_plabel |
| 82 | #undef e_abs |
| 83 | |
| 84 | /* for compatibility */ |
| 85 | enum hppa_reloc_field_selector_type_alt |
| 86 | { |
| 87 | e_fsel = R_HPPA_FSEL, |
| 88 | e_lssel = R_HPPA_LSSEL, |
| 89 | e_rssel = R_HPPA_RSSEL, |
| 90 | e_lsel = R_HPPA_LSEL, |
| 91 | e_rsel = R_HPPA_RSEL, |
| 92 | e_ldsel = R_HPPA_LDSEL, |
| 93 | e_rdsel = R_HPPA_RDSEL, |
| 94 | e_lrsel = R_HPPA_LRSEL, |
| 95 | e_rrsel = R_HPPA_RRSEL, |
| 96 | e_psel = R_HPPA_PSEL, |
| 97 | e_lpsel = R_HPPA_LPSEL, |
| 98 | e_rpsel = R_HPPA_RPSEL, |
| 99 | e_tsel = R_HPPA_TSEL, |
| 100 | e_ltsel = R_HPPA_LTSEL, |
| 101 | e_rtsel = R_HPPA_RTSEL |
| 102 | }; |
| 103 | |
| 104 | enum hppa_reloc_expr_type |
| 105 | { |
| 106 | R_HPPA_E_ONE = 0, |
| 107 | R_HPPA_E_TWO = 1, |
| 108 | R_HPPA_E_PCREL = 2, |
| 109 | R_HPPA_E_CON = 3, |
| 110 | R_HPPA_E_PLABEL = 7, |
| 111 | R_HPPA_E_ABS = 18 |
| 112 | }; |
| 113 | |
| 114 | /* for compatibility */ |
| 115 | enum hppa_reloc_expr_type_alt |
| 116 | { |
| 117 | e_one = R_HPPA_E_ONE, |
| 118 | e_two = R_HPPA_E_TWO, |
| 119 | e_pcrel = R_HPPA_E_PCREL, |
| 120 | e_con = R_HPPA_E_CON, |
| 121 | e_plabel = R_HPPA_E_PLABEL, |
| 122 | e_abs = R_HPPA_E_ABS |
| 123 | }; |
| 124 | |
| 125 | |
| 126 | /* Some functions to manipulate PA instructions. */ |
| 127 | static INLINE unsigned int |
| 128 | assemble_3 (x) |
| 129 | unsigned int x; |
| 130 | { |
| 131 | return (((x & 1) << 2) | ((x & 6) >> 1)) & 7; |
| 132 | } |
| 133 | |
| 134 | static INLINE void |
| 135 | dis_assemble_3 (x, r) |
| 136 | unsigned int x; |
| 137 | unsigned int *r; |
| 138 | { |
| 139 | *r = (((x & 4) >> 2) | ((x & 3) << 1)) & 7; |
| 140 | } |
| 141 | |
| 142 | static INLINE unsigned int |
| 143 | assemble_12 (x, y) |
| 144 | unsigned int x, y; |
| 145 | { |
| 146 | return (((y & 1) << 11) | ((x & 1) << 10) | ((x & 0x7fe) >> 1)) & 0xfff; |
| 147 | } |
| 148 | |
| 149 | static INLINE void |
| 150 | dis_assemble_12 (as12, x, y) |
| 151 | unsigned int as12; |
| 152 | unsigned int *x, *y; |
| 153 | { |
| 154 | *y = (as12 & 0x800) >> 11; |
| 155 | *x = ((as12 & 0x3ff) << 1) | ((as12 & 0x400) >> 10); |
| 156 | } |
| 157 | |
| 158 | static INLINE unsigned long |
| 159 | assemble_17 (x, y, z) |
| 160 | unsigned int x, y, z; |
| 161 | { |
| 162 | unsigned long temp; |
| 163 | |
| 164 | temp = ((z & 1) << 16) | |
| 165 | ((x & 0x1f) << 11) | |
| 166 | ((y & 1) << 10) | |
| 167 | ((y & 0x7fe) >> 1); |
| 168 | return temp & 0x1ffff; |
| 169 | } |
| 170 | |
| 171 | static INLINE void |
| 172 | dis_assemble_17 (as17, x, y, z) |
| 173 | unsigned int as17; |
| 174 | unsigned int *x, *y, *z; |
| 175 | { |
| 176 | |
| 177 | *z = (as17 & 0x10000) >> 16; |
| 178 | *x = (as17 & 0x0f800) >> 11; |
| 179 | *y = (((as17 & 0x00400) >> 10) | ((as17 & 0x3ff) << 1)) & 0x7ff; |
| 180 | } |
| 181 | |
| 182 | static INLINE unsigned long |
| 183 | assemble_21 (x) |
| 184 | unsigned int x; |
| 185 | { |
| 186 | unsigned long temp; |
| 187 | |
| 188 | temp = ((x & 1) << 20) | |
| 189 | ((x & 0xffe) << 8) | |
| 190 | ((x & 0xc000) >> 7) | |
| 191 | ((x & 0x1f0000) >> 14) | |
| 192 | ((x & 0x003000) >> 12); |
| 193 | return temp & 0x1fffff; |
| 194 | } |
| 195 | |
| 196 | static INLINE void |
| 197 | dis_assemble_21 (as21, x) |
| 198 | unsigned int as21, *x; |
| 199 | { |
| 200 | unsigned long temp; |
| 201 | |
| 202 | |
| 203 | temp = (as21 & 0x100000) >> 20; |
| 204 | temp |= (as21 & 0x0ffe00) >> 8; |
| 205 | temp |= (as21 & 0x000180) << 7; |
| 206 | temp |= (as21 & 0x00007c) << 14; |
| 207 | temp |= (as21 & 0x000003) << 12; |
| 208 | *x = temp; |
| 209 | } |
| 210 | |
| 211 | static INLINE unsigned long |
| 212 | sign_ext (x, len) |
| 213 | unsigned int x, len; |
| 214 | { |
| 215 | return (x << (32 - len)) >> (32 - len); |
| 216 | } |
| 217 | |
| 218 | static INLINE unsigned int |
| 219 | ones (n) |
| 220 | int n; |
| 221 | { |
| 222 | unsigned int len_ones; |
| 223 | int i; |
| 224 | |
| 225 | i = 0; |
| 226 | len_ones = 0; |
| 227 | while (i < n) |
| 228 | { |
| 229 | len_ones = (len_ones << 1) | 1; |
| 230 | i++; |
| 231 | } |
| 232 | |
| 233 | return len_ones; |
| 234 | } |
| 235 | |
| 236 | static INLINE void |
| 237 | sign_unext (x, len, result) |
| 238 | unsigned int x, len; |
| 239 | unsigned int *result; |
| 240 | { |
| 241 | unsigned int len_ones; |
| 242 | |
| 243 | len_ones = ones (len); |
| 244 | |
| 245 | *result = x & len_ones; |
| 246 | } |
| 247 | |
| 248 | static INLINE unsigned long |
| 249 | low_sign_ext (x, len) |
| 250 | unsigned int x, len; |
| 251 | { |
| 252 | unsigned int temp1, temp2; |
| 253 | unsigned int len_ones; |
| 254 | |
| 255 | len_ones = ones (len); |
| 256 | |
| 257 | temp1 = (x & 1) << (len - 1); |
| 258 | temp2 = ((x & 0xfffffffe) & len_ones) >> 1; |
| 259 | return sign_ext ((temp1 | temp2), len); |
| 260 | } |
| 261 | |
| 262 | static INLINE void |
| 263 | low_sign_unext (x, len, result) |
| 264 | unsigned int x, len; |
| 265 | unsigned int *result; |
| 266 | { |
| 267 | unsigned int temp; |
| 268 | unsigned int sign; |
| 269 | unsigned int rest; |
| 270 | unsigned int one_bit_at_len; |
| 271 | unsigned int len_ones; |
| 272 | |
| 273 | len_ones = ones (len); |
| 274 | one_bit_at_len = 1 << (len - 1); |
| 275 | |
| 276 | sign_unext (x, len, &temp); |
| 277 | sign = temp & one_bit_at_len; |
| 278 | sign >>= (len - 1); |
| 279 | |
| 280 | rest = temp & (len_ones ^ one_bit_at_len); |
| 281 | rest <<= 1; |
| 282 | |
| 283 | *result = rest | sign; |
| 284 | } |
| 285 | |
| 286 | /* Handle field selectors for PA instructions. */ |
| 287 | |
| 288 | static INLINE unsigned long |
| 289 | hppa_field_adjust (value, constant_value, r_field) |
| 290 | unsigned long value; |
| 291 | unsigned long constant_value; |
| 292 | unsigned short r_field; |
| 293 | { |
| 294 | unsigned long init_value = value; |
| 295 | value += constant_value; |
| 296 | switch (r_field) |
| 297 | { |
| 298 | case e_fsel: /* F : no change */ |
| 299 | break; |
| 300 | |
| 301 | case e_lssel: /* LS : if (bit 21) then add 0x800 |
| 302 | arithmetic shift right 11 bits */ |
| 303 | if (value & 0x00000400) |
| 304 | value += 0x800; |
| 305 | value = (value & 0xfffff800) >> 11; |
| 306 | break; |
| 307 | |
| 308 | case e_rssel: /* RS : Sign extend from bit 21 */ |
| 309 | if (value & 0x00000400) |
| 310 | value |= 0xfffff800; |
| 311 | else |
| 312 | value &= 0x7ff; |
| 313 | break; |
| 314 | |
| 315 | case e_lsel: /* L : Arithmetic shift right 11 bits */ |
| 316 | value = (value & 0xfffff800) >> 11; |
| 317 | break; |
| 318 | |
| 319 | case e_rsel: /* R : Set bits 0-20 to zero */ |
| 320 | value = value & 0x7ff; |
| 321 | break; |
| 322 | |
| 323 | case e_ldsel: /* LD : Add 0x800, arithmetic shift |
| 324 | right 11 bits */ |
| 325 | value += 0x800; |
| 326 | value = (value & 0xfffff800) >> 11; |
| 327 | break; |
| 328 | |
| 329 | case e_rdsel: /* RD : Set bits 0-20 to one */ |
| 330 | value |= 0xfffff800; |
| 331 | break; |
| 332 | |
| 333 | case e_lrsel: /* LR : L with "rounded" constant */ |
| 334 | value = value + ((constant_value + 0x1000) & 0xffffe000); |
| 335 | value = (value & 0xfffff800) >> 11; |
| 336 | break; |
| 337 | |
| 338 | case e_rrsel: /* RR : R with "rounded" constant */ |
| 339 | value = value + ((constant_value + 0x1000) & 0xffffe000); |
| 340 | value = (value & 0x7ff) + constant_value - ((constant_value + 0x1000) & 0xffffe000); |
| 341 | break; |
| 342 | |
| 343 | default: |
| 344 | abort (); |
| 345 | } |
| 346 | return value; |
| 347 | |
| 348 | } |
| 349 | #endif /* _HPPA_H */ |