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76c7e44d SG |
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 | ||
d9ad93bc | 7 | This file is part of BFD, the Binary File Descriptor library. |
76c7e44d | 8 | |
d9ad93bc KR |
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. | |
76c7e44d | 13 | |
d9ad93bc KR |
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. | |
76c7e44d | 18 | |
d9ad93bc KR |
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. */ | |
76c7e44d | 22 | |
d9ad93bc KR |
23 | #ifndef _HPPA_H |
24 | #define _HPPA_H | |
d325e28c | 25 | |
d9ad93bc | 26 | #define BYTES_IN_WORD 4 |
205d660d | 27 | |
d9ad93bc KR |
28 | #ifndef INLINE |
29 | #ifdef __GNUC__ | |
30 | #define INLINE inline | |
31 | #else | |
32 | #define INLINE | |
33 | #endif /* GNU C? */ | |
34 | #endif /* INLINE */ | |
d325e28c | 35 | |
d9ad93bc | 36 | /* HP PA-RISC relocation types */ |
d325e28c | 37 | |
d9ad93bc KR |
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 | }; | |
89c789f6 | 56 | |
d9ad93bc KR |
57 | /* for compatibility */ |
58 | enum hppa_reloc_field_selector_type_alt | |
59 | { | |
60 | e_fsel = R_HPPA_FSEL, | |
61 | e_lssel = R_HPPA_LSSEL, | |
62 | e_rssel = R_HPPA_RSSEL, | |
63 | e_lsel = R_HPPA_LSEL, | |
64 | e_rsel = R_HPPA_RSEL, | |
65 | e_ldsel = R_HPPA_LDSEL, | |
66 | e_rdsel = R_HPPA_RDSEL, | |
67 | e_lrsel = R_HPPA_LRSEL, | |
68 | e_rrsel = R_HPPA_RRSEL, | |
69 | e_psel = R_HPPA_PSEL, | |
70 | e_lpsel = R_HPPA_LPSEL, | |
71 | e_rpsel = R_HPPA_RPSEL, | |
72 | e_tsel = R_HPPA_TSEL, | |
73 | e_ltsel = R_HPPA_LTSEL, | |
74 | e_rtsel = R_HPPA_RTSEL | |
75 | }; | |
89c789f6 | 76 | |
d9ad93bc KR |
77 | enum hppa_reloc_expr_type |
78 | { | |
79 | R_HPPA_E_ONE = 0, | |
80 | R_HPPA_E_TWO = 1, | |
81 | R_HPPA_E_PCREL = 2, | |
82 | R_HPPA_E_CON = 3, | |
83 | R_HPPA_E_PLABEL = 7, | |
84 | R_HPPA_E_ABS = 18 | |
85 | }; | |
d325e28c | 86 | |
d9ad93bc KR |
87 | /* for compatibility */ |
88 | enum hppa_reloc_expr_type_alt | |
89 | { | |
90 | e_one = R_HPPA_E_ONE, | |
91 | e_two = R_HPPA_E_TWO, | |
92 | e_pcrel = R_HPPA_E_PCREL, | |
93 | e_con = R_HPPA_E_CON, | |
94 | e_plabel = R_HPPA_E_PLABEL, | |
95 | e_abs = R_HPPA_E_ABS | |
96 | }; | |
97 | ||
98 | ||
99 | /* Some functions to manipulate PA instructions. */ | |
100 | static INLINE unsigned int | |
101 | assemble_3 (x) | |
102 | unsigned int x; | |
103 | { | |
104 | return (((x & 1) << 2) | ((x & 6) >> 1)) & 7; | |
105 | } | |
d325e28c | 106 | |
d9ad93bc KR |
107 | static INLINE void |
108 | dis_assemble_3 (x, r) | |
109 | unsigned int x; | |
110 | unsigned int *r; | |
111 | { | |
112 | *r = (((x & 4) >> 2) | ((x & 3) << 1)) & 7; | |
113 | } | |
89c789f6 | 114 | |
d9ad93bc KR |
115 | static INLINE unsigned int |
116 | assemble_12 (x, y) | |
117 | unsigned int x, y; | |
118 | { | |
119 | return (((y & 1) << 11) | ((x & 1) << 10) | ((x & 0x7fe) >> 1)) & 0xfff; | |
120 | } | |
89c789f6 | 121 | |
d9ad93bc KR |
122 | static INLINE void |
123 | dis_assemble_12 (as12, x, y) | |
124 | unsigned int as12; | |
125 | unsigned int *x, *y; | |
126 | { | |
127 | *y = (as12 & 0x800) >> 11; | |
128 | *x = ((as12 & 0x3ff) << 1) | ((as12 & 0x400) >> 10); | |
129 | } | |
76c7e44d | 130 | |
d9ad93bc KR |
131 | static INLINE unsigned long |
132 | assemble_17 (x, y, z) | |
133 | unsigned int x, y, z; | |
134 | { | |
135 | unsigned long temp; | |
136 | ||
137 | temp = ((z & 1) << 16) | | |
138 | ((x & 0x1f) << 11) | | |
139 | ((y & 1) << 10) | | |
140 | ((y & 0x7fe) >> 1); | |
141 | return temp & 0x1ffff; | |
142 | } | |
143 | ||
144 | static INLINE void | |
145 | dis_assemble_17 (as17, x, y, z) | |
146 | unsigned int as17; | |
147 | unsigned int *x, *y, *z; | |
148 | { | |
76c7e44d | 149 | |
d9ad93bc KR |
150 | *z = (as17 & 0x10000) >> 16; |
151 | *x = (as17 & 0x0f800) >> 11; | |
152 | *y = (((as17 & 0x00400) >> 10) | ((as17 & 0x3ff) << 1)) & 0x7ff; | |
153 | } | |
76c7e44d | 154 | |
d9ad93bc KR |
155 | static INLINE unsigned long |
156 | assemble_21 (x) | |
157 | unsigned int x; | |
76c7e44d | 158 | { |
d9ad93bc KR |
159 | unsigned long temp; |
160 | ||
161 | temp = ((x & 1) << 20) | | |
162 | ((x & 0xffe) << 8) | | |
163 | ((x & 0xc000) >> 7) | | |
164 | ((x & 0x1f0000) >> 14) | | |
165 | ((x & 0x003000) >> 12); | |
166 | return temp & 0x1fffff; | |
167 | } | |
168 | ||
169 | static INLINE void | |
170 | dis_assemble_21 (as21, x) | |
171 | unsigned int as21, *x; | |
76c7e44d | 172 | { |
d9ad93bc | 173 | unsigned long temp; |
76c7e44d | 174 | |
76c7e44d | 175 | |
d9ad93bc KR |
176 | temp = (as21 & 0x100000) >> 20; |
177 | temp |= (as21 & 0x0ffe00) >> 8; | |
178 | temp |= (as21 & 0x000180) << 7; | |
179 | temp |= (as21 & 0x00007c) << 14; | |
180 | temp |= (as21 & 0x000003) << 12; | |
181 | *x = temp; | |
182 | } | |
76c7e44d | 183 | |
d9ad93bc KR |
184 | static INLINE unsigned long |
185 | sign_ext (x, len) | |
186 | unsigned int x, len; | |
187 | { | |
188 | return (x << (32 - len)) >> (32 - len); | |
189 | } | |
76c7e44d | 190 | |
d9ad93bc KR |
191 | static INLINE unsigned int |
192 | ones (n) | |
193 | int n; | |
194 | { | |
195 | unsigned int len_ones; | |
196 | int i; | |
197 | ||
198 | i = 0; | |
199 | len_ones = 0; | |
200 | while (i < n) | |
201 | { | |
202 | len_ones = (len_ones << 1) | 1; | |
203 | i++; | |
204 | } | |
205 | ||
206 | return len_ones; | |
207 | } | |
208 | ||
209 | static INLINE void | |
210 | sign_unext (x, len, result) | |
211 | unsigned int x, len; | |
212 | unsigned int *result; | |
213 | { | |
214 | unsigned int len_ones; | |
76c7e44d | 215 | |
d9ad93bc | 216 | len_ones = ones (len); |
76c7e44d | 217 | |
d9ad93bc KR |
218 | *result = x & len_ones; |
219 | } | |
76c7e44d | 220 | |
d9ad93bc KR |
221 | static INLINE unsigned long |
222 | low_sign_ext (x, len) | |
223 | unsigned int x, len; | |
224 | { | |
225 | unsigned int temp1, temp2; | |
226 | unsigned int len_ones; | |
76c7e44d | 227 | |
d9ad93bc | 228 | len_ones = ones (len); |
76c7e44d | 229 | |
d9ad93bc KR |
230 | temp1 = (x & 1) << (len - 1); |
231 | temp2 = ((x & 0xfffffffe) & len_ones) >> 1; | |
232 | return sign_ext ((temp1 | temp2), len); | |
233 | } | |
205d660d | 234 | |
d9ad93bc KR |
235 | static INLINE void |
236 | low_sign_unext (x, len, result) | |
237 | unsigned int x, len; | |
238 | unsigned int *result; | |
76c7e44d | 239 | { |
d9ad93bc KR |
240 | unsigned int temp; |
241 | unsigned int sign; | |
242 | unsigned int rest; | |
243 | unsigned int one_bit_at_len; | |
244 | unsigned int len_ones; | |
8568acaa | 245 | |
d9ad93bc KR |
246 | len_ones = ones (len); |
247 | one_bit_at_len = 1 << (len - 1); | |
8568acaa | 248 | |
d9ad93bc KR |
249 | sign_unext (x, len, &temp); |
250 | sign = temp & one_bit_at_len; | |
251 | sign >>= (len - 1); | |
b2057735 | 252 | |
d9ad93bc KR |
253 | rest = temp & (len_ones ^ one_bit_at_len); |
254 | rest <<= 1; | |
8568acaa | 255 | |
d9ad93bc KR |
256 | *result = rest | sign; |
257 | } | |
8568acaa | 258 | |
d9ad93bc KR |
259 | /* Handle field selectors for PA instructions. */ |
260 | ||
261 | static INLINE unsigned long | |
262 | hppa_field_adjust (value, constant_value, r_field) | |
263 | unsigned long value; | |
264 | unsigned long constant_value; | |
265 | unsigned short r_field; | |
8568acaa | 266 | { |
d9ad93bc KR |
267 | unsigned long init_value = value; |
268 | value += constant_value; | |
269 | switch (r_field) | |
270 | { | |
271 | case e_fsel: /* F : no change */ | |
272 | break; | |
273 | ||
274 | case e_lssel: /* LS : if (bit 21) then add 0x800 | |
275 | arithmetic shift right 11 bits */ | |
276 | if (value & 0x00000400) | |
277 | value += 0x800; | |
278 | value = (value & 0xfffff800) >> 11; | |
279 | break; | |
280 | ||
281 | case e_rssel: /* RS : Sign extend from bit 21 */ | |
282 | if (value & 0x00000400) | |
283 | value |= 0xfffff800; | |
284 | else | |
285 | value &= 0x7ff; | |
286 | break; | |
287 | ||
288 | case e_lsel: /* L : Arithmetic shift right 11 bits */ | |
289 | value = (value & 0xfffff800) >> 11; | |
290 | break; | |
291 | ||
292 | case e_rsel: /* R : Set bits 0-20 to zero */ | |
293 | value = value & 0x7ff; | |
294 | break; | |
295 | ||
296 | case e_ldsel: /* LD : Add 0x800, arithmetic shift | |
297 | right 11 bits */ | |
298 | value += 0x800; | |
299 | value = (value & 0xfffff800) >> 11; | |
300 | break; | |
301 | ||
302 | case e_rdsel: /* RD : Set bits 0-20 to one */ | |
303 | value |= 0xfffff800; | |
304 | break; | |
305 | ||
306 | case e_lrsel: /* LR : L with "rounded" constant */ | |
307 | value = value + ((constant_value + 0x1000) & 0xffffe000); | |
308 | value = (value & 0xfffff800) >> 11; | |
309 | break; | |
310 | ||
311 | case e_rrsel: /* RR : R with "rounded" constant */ | |
312 | value = value + ((constant_value + 0x1000) & 0xffffe000); | |
313 | value = (value & 0x7ff) + constant_value - ((constant_value + 0x1000) & 0xffffe000); | |
314 | break; | |
315 | ||
316 | default: | |
317 | abort (); | |
318 | } | |
319 | return value; | |
320 | ||
321 | } | |
322 | #endif /* _HPPA_H */ |