1 /* HP PA-RISC SOM object file format: definitions internal to BFD.
2 Copyright (C) 1990-1991 Free Software Foundation, Inc.
4 Contributed by the Center for Software Science at the
7 This file is part of BFD, the Binary File Descriptor library.
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.
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.
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. */
26 #define BYTES_IN_WORD 4
36 /* HP PA-RISC relocation types */
38 enum hppa_reloc_field_selector_type
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
84 /* for compatibility */
85 enum hppa_reloc_field_selector_type_alt
88 e_lssel = R_HPPA_LSSEL,
89 e_rssel = R_HPPA_RSSEL,
92 e_ldsel = R_HPPA_LDSEL,
93 e_rdsel = R_HPPA_RDSEL,
94 e_lrsel = R_HPPA_LRSEL,
95 e_rrsel = R_HPPA_RRSEL,
97 e_lpsel = R_HPPA_LPSEL,
98 e_rpsel = R_HPPA_RPSEL,
100 e_ltsel = R_HPPA_LTSEL,
101 e_rtsel = R_HPPA_RTSEL
104 enum hppa_reloc_expr_type
114 /* for compatibility */
115 enum hppa_reloc_expr_type_alt
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,
126 /* Some functions to manipulate PA instructions. */
127 static INLINE unsigned int
131 return (((x & 1) << 2) | ((x & 6) >> 1)) & 7;
135 dis_assemble_3 (x, r)
139 *r = (((x & 4) >> 2) | ((x & 3) << 1)) & 7;
142 static INLINE unsigned int
146 return (((y & 1) << 11) | ((x & 1) << 10) | ((x & 0x7fe) >> 1)) & 0xfff;
150 dis_assemble_12 (as12, x, y)
154 *y = (as12 & 0x800) >> 11;
155 *x = ((as12 & 0x3ff) << 1) | ((as12 & 0x400) >> 10);
158 static INLINE unsigned long
159 assemble_17 (x, y, z)
160 unsigned int x, y, z;
164 temp = ((z & 1) << 16) |
168 return temp & 0x1ffff;
172 dis_assemble_17 (as17, x, y, z)
174 unsigned int *x, *y, *z;
177 *z = (as17 & 0x10000) >> 16;
178 *x = (as17 & 0x0f800) >> 11;
179 *y = (((as17 & 0x00400) >> 10) | ((as17 & 0x3ff) << 1)) & 0x7ff;
182 static INLINE unsigned long
188 temp = ((x & 1) << 20) |
190 ((x & 0xc000) >> 7) |
191 ((x & 0x1f0000) >> 14) |
192 ((x & 0x003000) >> 12);
193 return temp & 0x1fffff;
197 dis_assemble_21 (as21, x)
198 unsigned int as21, *x;
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;
211 static INLINE unsigned long
215 return (x << (32 - len)) >> (32 - len);
218 static INLINE unsigned int
222 unsigned int len_ones;
229 len_ones = (len_ones << 1) | 1;
237 sign_unext (x, len, result)
239 unsigned int *result;
241 unsigned int len_ones;
243 len_ones = ones (len);
245 *result = x & len_ones;
248 static INLINE unsigned long
249 low_sign_ext (x, len)
252 unsigned int temp1, temp2;
253 unsigned int len_ones;
255 len_ones = ones (len);
257 temp1 = (x & 1) << (len - 1);
258 temp2 = ((x & 0xfffffffe) & len_ones) >> 1;
259 return sign_ext ((temp1 | temp2), len);
263 low_sign_unext (x, len, result)
265 unsigned int *result;
270 unsigned int one_bit_at_len;
271 unsigned int len_ones;
273 len_ones = ones (len);
274 one_bit_at_len = 1 << (len - 1);
276 sign_unext (x, len, &temp);
277 sign = temp & one_bit_at_len;
280 rest = temp & (len_ones ^ one_bit_at_len);
283 *result = rest | sign;
286 /* Handle field selectors for PA instructions. */
288 static INLINE unsigned long
289 hppa_field_adjust (value, constant_value, r_field)
291 unsigned long constant_value;
292 unsigned short r_field;
294 unsigned long init_value = value;
295 value += constant_value;
298 case e_fsel: /* F : no change */
301 case e_lssel: /* LS : if (bit 21) then add 0x800
302 arithmetic shift right 11 bits */
303 if (value & 0x00000400)
305 value = (value & 0xfffff800) >> 11;
308 case e_rssel: /* RS : Sign extend from bit 21 */
309 if (value & 0x00000400)
315 case e_lsel: /* L : Arithmetic shift right 11 bits */
316 value = (value & 0xfffff800) >> 11;
319 case e_rsel: /* R : Set bits 0-20 to zero */
320 value = value & 0x7ff;
323 case e_ldsel: /* LD : Add 0x800, arithmetic shift
326 value = (value & 0xfffff800) >> 11;
329 case e_rdsel: /* RD : Set bits 0-20 to one */
333 case e_lrsel: /* LR : L with "rounded" constant */
334 value = value + ((constant_value + 0x1000) & 0xffffe000);
335 value = (value & 0xfffff800) >> 11;
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);