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adde6300 AM |
1 | /* tc-avr.c -- Assembler code for the ATMEL AVR |
2 | ||
d669d37f | 3 | Copyright 1999, 2000, 2001, 2002, 2004, 2005, 2006, 2007, 2008 |
2132e3a3 | 4 | Free Software Foundation, Inc. |
adde6300 AM |
5 | Contributed by Denis Chertykov <denisc@overta.ru> |
6 | ||
7 | This file is part of GAS, the GNU Assembler. | |
8 | ||
9 | GAS is free software; you can redistribute it and/or modify | |
10 | it under the terms of the GNU General Public License as published by | |
ec2655a6 | 11 | the Free Software Foundation; either version 3, or (at your option) |
adde6300 AM |
12 | any later version. |
13 | ||
14 | GAS 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 GAS; see the file COPYING. If not, write to | |
4b4da160 NC |
21 | the Free Software Foundation, 51 Franklin Street - Fifth Floor, |
22 | Boston, MA 02110-1301, USA. */ | |
adde6300 | 23 | |
adde6300 | 24 | #include "as.h" |
3882b010 | 25 | #include "safe-ctype.h" |
adde6300 AM |
26 | #include "subsegs.h" |
27 | ||
1188e082 DC |
28 | struct avr_opcodes_s |
29 | { | |
dc191a8f NC |
30 | char * name; |
31 | char * constraints; | |
32 | int insn_size; /* In words. */ | |
33 | int isa; | |
34 | unsigned int bin_opcode; | |
1188e082 DC |
35 | }; |
36 | ||
37 | #define AVR_INSN(NAME, CONSTR, OPCODE, SIZE, ISA, BIN) \ | |
38 | {#NAME, CONSTR, SIZE, ISA, BIN}, | |
39 | ||
40 | struct avr_opcodes_s avr_opcodes[] = | |
41 | { | |
42 | #include "opcode/avr.h" | |
43 | {NULL, NULL, 0, 0, 0} | |
44 | }; | |
45 | ||
adde6300 AM |
46 | const char comment_chars[] = ";"; |
47 | const char line_comment_chars[] = "#"; | |
48 | const char line_separator_chars[] = "$"; | |
49 | ||
adde6300 AM |
50 | const char *md_shortopts = "m:"; |
51 | struct mcu_type_s | |
52 | { | |
53 | char *name; | |
54 | int isa; | |
55 | int mach; | |
56 | }; | |
57 | ||
1f8ae5e6 | 58 | /* XXX - devices that don't seem to exist (renamed, replaced with larger |
7b21ac3f | 59 | ones, or planned but never produced), left here for compatibility. */ |
1f8ae5e6 | 60 | |
adde6300 AM |
61 | static struct mcu_type_s mcu_types[] = |
62 | { | |
7b21ac3f EW |
63 | {"avr1", AVR_ISA_AVR1, bfd_mach_avr1}, |
64 | /* TODO: insruction set for avr2 architecture should be AVR_ISA_AVR2, | |
65 | but set to AVR_ISA_AVR25 for some following version | |
66 | of GCC (from 4.3) for backward compatibility. */ | |
67 | {"avr2", AVR_ISA_AVR25, bfd_mach_avr2}, | |
68 | {"avr25", AVR_ISA_AVR25, bfd_mach_avr25}, | |
69 | /* TODO: insruction set for avr3 architecture should be AVR_ISA_AVR3, | |
70 | but set to AVR_ISA_AVR3_ALL for some following version | |
71 | of GCC (from 4.3) for backward compatibility. */ | |
72 | {"avr3", AVR_ISA_AVR3_ALL, bfd_mach_avr3}, | |
73 | {"avr31", AVR_ISA_AVR31, bfd_mach_avr31}, | |
74 | {"avr35", AVR_ISA_AVR35, bfd_mach_avr35}, | |
75 | {"avr4", AVR_ISA_AVR4, bfd_mach_avr4}, | |
76 | /* TODO: insruction set for avr5 architecture should be AVR_ISA_AVR5, | |
77 | but set to AVR_ISA_AVR51 for some following version | |
78 | of GCC (from 4.3) for backward compatibility. */ | |
79 | {"avr5", AVR_ISA_AVR51, bfd_mach_avr5}, | |
80 | {"avr51", AVR_ISA_AVR51, bfd_mach_avr51}, | |
81 | {"avr6", AVR_ISA_AVR6, bfd_mach_avr6}, | |
28c9d252 | 82 | {"at90s1200", AVR_ISA_1200, bfd_mach_avr1}, |
7b21ac3f EW |
83 | {"attiny11", AVR_ISA_AVR1, bfd_mach_avr1}, |
84 | {"attiny12", AVR_ISA_AVR1, bfd_mach_avr1}, | |
85 | {"attiny15", AVR_ISA_AVR1, bfd_mach_avr1}, | |
86 | {"attiny28", AVR_ISA_AVR1, bfd_mach_avr1}, | |
87 | {"at90s2313", AVR_ISA_AVR2, bfd_mach_avr2}, | |
88 | {"at90s2323", AVR_ISA_AVR2, bfd_mach_avr2}, | |
89 | {"at90s2333", AVR_ISA_AVR2, bfd_mach_avr2}, /* XXX -> 4433 */ | |
90 | {"at90s2343", AVR_ISA_AVR2, bfd_mach_avr2}, | |
91 | {"attiny22", AVR_ISA_AVR2, bfd_mach_avr2}, /* XXX -> 2343 */ | |
d669d37f | 92 | {"attiny26", AVR_ISA_2xxe, bfd_mach_avr2}, |
7b21ac3f EW |
93 | {"at90s4414", AVR_ISA_AVR2, bfd_mach_avr2}, /* XXX -> 8515 */ |
94 | {"at90s4433", AVR_ISA_AVR2, bfd_mach_avr2}, | |
95 | {"at90s4434", AVR_ISA_AVR2, bfd_mach_avr2}, /* XXX -> 8535 */ | |
96 | {"at90s8515", AVR_ISA_AVR2, bfd_mach_avr2}, | |
97 | {"at90c8534", AVR_ISA_AVR2, bfd_mach_avr2}, | |
98 | {"at90s8535", AVR_ISA_AVR2, bfd_mach_avr2}, | |
99 | {"attiny13", AVR_ISA_AVR25, bfd_mach_avr25}, | |
100 | {"attiny13a", AVR_ISA_AVR25, bfd_mach_avr25}, | |
101 | {"attiny2313", AVR_ISA_AVR25, bfd_mach_avr25}, | |
102 | {"attiny24", AVR_ISA_AVR25, bfd_mach_avr25}, | |
103 | {"attiny44", AVR_ISA_AVR25, bfd_mach_avr25}, | |
104 | {"attiny84", AVR_ISA_AVR25, bfd_mach_avr25}, | |
105 | {"attiny25", AVR_ISA_AVR25, bfd_mach_avr25}, | |
106 | {"attiny45", AVR_ISA_AVR25, bfd_mach_avr25}, | |
107 | {"attiny85", AVR_ISA_AVR25, bfd_mach_avr25}, | |
108 | {"attiny261", AVR_ISA_AVR25, bfd_mach_avr25}, | |
109 | {"attiny461", AVR_ISA_AVR25, bfd_mach_avr25}, | |
110 | {"attiny861", AVR_ISA_AVR25, bfd_mach_avr25}, | |
2b02f87c | 111 | {"attiny87", AVR_ISA_AVR25, bfd_mach_avr25}, |
7b21ac3f EW |
112 | {"attiny43u", AVR_ISA_AVR25, bfd_mach_avr25}, |
113 | {"attiny48", AVR_ISA_AVR25, bfd_mach_avr25}, | |
114 | {"attiny88", AVR_ISA_AVR25, bfd_mach_avr25}, | |
115 | {"at86rf401", AVR_ISA_RF401, bfd_mach_avr25}, | |
a53fddce | 116 | {"ata6289", AVR_ISA_AVR25, bfd_mach_avr25}, |
7b21ac3f EW |
117 | {"at43usb355", AVR_ISA_AVR3, bfd_mach_avr3}, |
118 | {"at76c711", AVR_ISA_AVR3, bfd_mach_avr3}, | |
119 | {"atmega103", AVR_ISA_AVR31, bfd_mach_avr31}, | |
120 | {"at43usb320", AVR_ISA_AVR31, bfd_mach_avr31}, | |
121 | {"attiny167", AVR_ISA_AVR35, bfd_mach_avr35}, | |
2b02f87c | 122 | {"attiny327", AVR_ISA_AVR35, bfd_mach_avr35}, |
7b21ac3f EW |
123 | {"at90usb82", AVR_ISA_AVR35, bfd_mach_avr35}, |
124 | {"at90usb162", AVR_ISA_AVR35, bfd_mach_avr35}, | |
11908008 EW |
125 | {"atmega8u2", AVR_ISA_AVR35, bfd_mach_avr35}, |
126 | {"atmega16u2", AVR_ISA_AVR35, bfd_mach_avr35}, | |
127 | {"atmega32u2", AVR_ISA_AVR35, bfd_mach_avr35}, | |
28c9d252 | 128 | {"atmega8", AVR_ISA_M8, bfd_mach_avr4}, |
7b21ac3f EW |
129 | {"atmega48", AVR_ISA_AVR4, bfd_mach_avr4}, |
130 | {"atmega48p", AVR_ISA_AVR4, bfd_mach_avr4}, | |
131 | {"atmega88", AVR_ISA_AVR4, bfd_mach_avr4}, | |
132 | {"atmega88p", AVR_ISA_AVR4, bfd_mach_avr4}, | |
28c9d252 NC |
133 | {"atmega8515", AVR_ISA_M8, bfd_mach_avr4}, |
134 | {"atmega8535", AVR_ISA_M8, bfd_mach_avr4}, | |
7b21ac3f | 135 | {"atmega8hva", AVR_ISA_AVR4, bfd_mach_avr4}, |
2b02f87c NC |
136 | {"atmega4hvd", AVR_ISA_AVR4, bfd_mach_avr4}, |
137 | {"atmega8hvd", AVR_ISA_AVR4, bfd_mach_avr4}, | |
249da685 EW |
138 | {"atmega8c1", AVR_ISA_AVR4, bfd_mach_avr4}, |
139 | {"atmega8m1", AVR_ISA_AVR4, bfd_mach_avr4}, | |
7b21ac3f EW |
140 | {"at90pwm1", AVR_ISA_AVR4, bfd_mach_avr4}, |
141 | {"at90pwm2", AVR_ISA_AVR4, bfd_mach_avr4}, | |
142 | {"at90pwm2b", AVR_ISA_AVR4, bfd_mach_avr4}, | |
143 | {"at90pwm3", AVR_ISA_AVR4, bfd_mach_avr4}, | |
144 | {"at90pwm3b", AVR_ISA_AVR4, bfd_mach_avr4}, | |
2b02f87c | 145 | {"at90pwm81", AVR_ISA_AVR4, bfd_mach_avr4}, |
7b21ac3f | 146 | {"atmega16", AVR_ISA_AVR5, bfd_mach_avr5}, |
28c9d252 | 147 | {"atmega161", AVR_ISA_M161, bfd_mach_avr5}, |
7b21ac3f | 148 | {"atmega162", AVR_ISA_AVR5, bfd_mach_avr5}, |
28c9d252 | 149 | {"atmega163", AVR_ISA_M161, bfd_mach_avr5}, |
7b21ac3f EW |
150 | {"atmega164p", AVR_ISA_AVR5, bfd_mach_avr5}, |
151 | {"atmega165", AVR_ISA_AVR5, bfd_mach_avr5}, | |
152 | {"atmega165p", AVR_ISA_AVR5, bfd_mach_avr5}, | |
153 | {"atmega168", AVR_ISA_AVR5, bfd_mach_avr5}, | |
154 | {"atmega168p", AVR_ISA_AVR5, bfd_mach_avr5}, | |
155 | {"atmega169", AVR_ISA_AVR5, bfd_mach_avr5}, | |
156 | {"atmega169p", AVR_ISA_AVR5, bfd_mach_avr5}, | |
249da685 | 157 | {"atmega16c1", AVR_ISA_AVR5, bfd_mach_avr5}, |
7b21ac3f EW |
158 | {"atmega32", AVR_ISA_AVR5, bfd_mach_avr5}, |
159 | {"atmega323", AVR_ISA_AVR5, bfd_mach_avr5}, | |
160 | {"atmega324p", AVR_ISA_AVR5, bfd_mach_avr5}, | |
161 | {"atmega325", AVR_ISA_AVR5, bfd_mach_avr5}, | |
162 | {"atmega325p", AVR_ISA_AVR5, bfd_mach_avr5}, | |
163 | {"atmega3250", AVR_ISA_AVR5, bfd_mach_avr5}, | |
164 | {"atmega3250p",AVR_ISA_AVR5, bfd_mach_avr5}, | |
165 | {"atmega328p", AVR_ISA_AVR5, bfd_mach_avr5}, | |
166 | {"atmega329", AVR_ISA_AVR5, bfd_mach_avr5}, | |
167 | {"atmega329p", AVR_ISA_AVR5, bfd_mach_avr5}, | |
168 | {"atmega3290", AVR_ISA_AVR5, bfd_mach_avr5}, | |
169 | {"atmega3290p",AVR_ISA_AVR5, bfd_mach_avr5}, | |
170 | {"atmega406", AVR_ISA_AVR5, bfd_mach_avr5}, | |
171 | {"atmega64", AVR_ISA_AVR5, bfd_mach_avr5}, | |
172 | {"atmega640", AVR_ISA_AVR5, bfd_mach_avr5}, | |
173 | {"atmega644", AVR_ISA_AVR5, bfd_mach_avr5}, | |
174 | {"atmega644p", AVR_ISA_AVR5, bfd_mach_avr5}, | |
175 | {"atmega645", AVR_ISA_AVR5, bfd_mach_avr5}, | |
176 | {"atmega649", AVR_ISA_AVR5, bfd_mach_avr5}, | |
177 | {"atmega6450", AVR_ISA_AVR5, bfd_mach_avr5}, | |
178 | {"atmega6490", AVR_ISA_AVR5, bfd_mach_avr5}, | |
179 | {"atmega16hva",AVR_ISA_AVR5, bfd_mach_avr5}, | |
2b02f87c NC |
180 | {"atmega16hvb",AVR_ISA_AVR5, bfd_mach_avr5}, |
181 | {"atmega32hvb",AVR_ISA_AVR5, bfd_mach_avr5}, | |
7b21ac3f EW |
182 | {"at90can32" , AVR_ISA_AVR5, bfd_mach_avr5}, |
183 | {"at90can64" , AVR_ISA_AVR5, bfd_mach_avr5}, | |
184 | {"at90pwm216", AVR_ISA_AVR5, bfd_mach_avr5}, | |
185 | {"at90pwm316", AVR_ISA_AVR5, bfd_mach_avr5}, | |
186 | {"atmega32c1", AVR_ISA_AVR5, bfd_mach_avr5}, | |
2b02f87c NC |
187 | {"atmega64c1", AVR_ISA_AVR5, bfd_mach_avr5}, |
188 | {"atmega16m1", AVR_ISA_AVR5, bfd_mach_avr5}, | |
7b21ac3f | 189 | {"atmega32m1", AVR_ISA_AVR5, bfd_mach_avr5}, |
2b02f87c NC |
190 | {"atmega64m1", AVR_ISA_AVR5, bfd_mach_avr5}, |
191 | {"atmega16u4", AVR_ISA_AVR5, bfd_mach_avr5}, | |
7b21ac3f | 192 | {"atmega32u4", AVR_ISA_AVR5, bfd_mach_avr5}, |
2b02f87c | 193 | {"atmega32u6", AVR_ISA_AVR5, bfd_mach_avr5}, |
7b21ac3f EW |
194 | {"at90usb646", AVR_ISA_AVR5, bfd_mach_avr5}, |
195 | {"at90usb647", AVR_ISA_AVR5, bfd_mach_avr5}, | |
2b02f87c | 196 | {"at90scr100", AVR_ISA_AVR5, bfd_mach_avr5}, |
28c9d252 | 197 | {"at94k", AVR_ISA_94K, bfd_mach_avr5}, |
7b21ac3f EW |
198 | {"atmega128", AVR_ISA_AVR51, bfd_mach_avr51}, |
199 | {"atmega1280", AVR_ISA_AVR51, bfd_mach_avr51}, | |
200 | {"atmega1281", AVR_ISA_AVR51, bfd_mach_avr51}, | |
201 | {"atmega1284p",AVR_ISA_AVR51, bfd_mach_avr51}, | |
17f4880d | 202 | {"atmega128rfa1",AVR_ISA_AVR51, bfd_mach_avr51}, |
7b21ac3f EW |
203 | {"at90can128", AVR_ISA_AVR51, bfd_mach_avr51}, |
204 | {"at90usb1286",AVR_ISA_AVR51, bfd_mach_avr51}, | |
205 | {"at90usb1287",AVR_ISA_AVR51, bfd_mach_avr51}, | |
2b02f87c NC |
206 | {"m3000f", AVR_ISA_AVR51, bfd_mach_avr51}, |
207 | {"m3000s", AVR_ISA_AVR51, bfd_mach_avr51}, | |
208 | {"m3001b", AVR_ISA_AVR51, bfd_mach_avr51}, | |
7b21ac3f EW |
209 | {"atmega2560", AVR_ISA_AVR6, bfd_mach_avr6}, |
210 | {"atmega2561", AVR_ISA_AVR6, bfd_mach_avr6}, | |
adde6300 AM |
211 | {NULL, 0, 0} |
212 | }; | |
213 | ||
adde6300 | 214 | /* Current MCU type. */ |
7b21ac3f | 215 | static struct mcu_type_s default_mcu = {"avr2", AVR_ISA_AVR2, bfd_mach_avr2}; |
dc191a8f | 216 | static struct mcu_type_s * avr_mcu = & default_mcu; |
adde6300 | 217 | |
00d2865b NC |
218 | /* AVR target-specific switches. */ |
219 | struct avr_opt_s | |
220 | { | |
dc191a8f NC |
221 | int all_opcodes; /* -mall-opcodes: accept all known AVR opcodes. */ |
222 | int no_skip_bug; /* -mno-skip-bug: no warnings for skipping 2-word insns. */ | |
223 | int no_wrap; /* -mno-wrap: reject rjmp/rcall with 8K wrap-around. */ | |
00d2865b NC |
224 | }; |
225 | ||
226 | static struct avr_opt_s avr_opt = { 0, 0, 0 }; | |
227 | ||
adde6300 AM |
228 | const char EXP_CHARS[] = "eE"; |
229 | const char FLT_CHARS[] = "dD"; | |
dc191a8f NC |
230 | |
231 | static void avr_set_arch (int); | |
adde6300 AM |
232 | |
233 | /* The target specific pseudo-ops which we support. */ | |
234 | const pseudo_typeS md_pseudo_table[] = | |
235 | { | |
236 | {"arch", avr_set_arch, 0}, | |
237 | { NULL, NULL, 0} | |
238 | }; | |
239 | ||
240 | #define LDI_IMMEDIATE(x) (((x) & 0xf) | (((x) << 4) & 0xf00)) | |
adde6300 | 241 | |
dc191a8f NC |
242 | #define EXP_MOD_NAME(i) exp_mod[i].name |
243 | #define EXP_MOD_RELOC(i) exp_mod[i].reloc | |
244 | #define EXP_MOD_NEG_RELOC(i) exp_mod[i].neg_reloc | |
245 | #define HAVE_PM_P(i) exp_mod[i].have_pm | |
adde6300 AM |
246 | |
247 | struct exp_mod_s | |
248 | { | |
dc191a8f NC |
249 | char * name; |
250 | bfd_reloc_code_real_type reloc; | |
251 | bfd_reloc_code_real_type neg_reloc; | |
252 | int have_pm; | |
adde6300 AM |
253 | }; |
254 | ||
c6a7ab1f NC |
255 | static struct exp_mod_s exp_mod[] = |
256 | { | |
adde6300 AM |
257 | {"hh8", BFD_RELOC_AVR_HH8_LDI, BFD_RELOC_AVR_HH8_LDI_NEG, 1}, |
258 | {"pm_hh8", BFD_RELOC_AVR_HH8_LDI_PM, BFD_RELOC_AVR_HH8_LDI_PM_NEG, 0}, | |
259 | {"hi8", BFD_RELOC_AVR_HI8_LDI, BFD_RELOC_AVR_HI8_LDI_NEG, 1}, | |
260 | {"pm_hi8", BFD_RELOC_AVR_HI8_LDI_PM, BFD_RELOC_AVR_HI8_LDI_PM_NEG, 0}, | |
261 | {"lo8", BFD_RELOC_AVR_LO8_LDI, BFD_RELOC_AVR_LO8_LDI_NEG, 1}, | |
262 | {"pm_lo8", BFD_RELOC_AVR_LO8_LDI_PM, BFD_RELOC_AVR_LO8_LDI_PM_NEG, 0}, | |
df406460 NC |
263 | {"hlo8", BFD_RELOC_AVR_HH8_LDI, BFD_RELOC_AVR_HH8_LDI_NEG, 0}, |
264 | {"hhi8", BFD_RELOC_AVR_MS8_LDI, BFD_RELOC_AVR_MS8_LDI_NEG, 0}, | |
adde6300 AM |
265 | }; |
266 | ||
8ad7c533 NC |
267 | /* A union used to store indicies into the exp_mod[] array |
268 | in a hash table which expects void * data types. */ | |
269 | typedef union | |
270 | { | |
271 | void * ptr; | |
272 | int index; | |
273 | } mod_index; | |
274 | ||
adde6300 AM |
275 | /* Opcode hash table. */ |
276 | static struct hash_control *avr_hash; | |
277 | ||
278 | /* Reloc modifiers hash control (hh8,hi8,lo8,pm_xx). */ | |
279 | static struct hash_control *avr_mod_hash; | |
280 | ||
00d2865b | 281 | #define OPTION_MMCU 'm' |
dc191a8f NC |
282 | enum options |
283 | { | |
284 | OPTION_ALL_OPCODES = OPTION_MD_BASE + 1, | |
285 | OPTION_NO_SKIP_BUG, | |
286 | OPTION_NO_WRAP | |
287 | }; | |
adde6300 | 288 | |
c6a7ab1f NC |
289 | struct option md_longopts[] = |
290 | { | |
00d2865b NC |
291 | { "mmcu", required_argument, NULL, OPTION_MMCU }, |
292 | { "mall-opcodes", no_argument, NULL, OPTION_ALL_OPCODES }, | |
293 | { "mno-skip-bug", no_argument, NULL, OPTION_NO_SKIP_BUG }, | |
294 | { "mno-wrap", no_argument, NULL, OPTION_NO_WRAP }, | |
295 | { NULL, no_argument, NULL, 0 } | |
adde6300 | 296 | }; |
adde6300 | 297 | |
c6a7ab1f | 298 | size_t md_longopts_size = sizeof (md_longopts); |
00d2865b NC |
299 | |
300 | /* Display nicely formatted list of known MCU names. */ | |
c6a7ab1f | 301 | |
00d2865b | 302 | static void |
dc191a8f | 303 | show_mcu_list (FILE *stream) |
00d2865b NC |
304 | { |
305 | int i, x; | |
306 | ||
307 | fprintf (stream, _("Known MCU names:")); | |
308 | x = 1000; | |
1dab94dd | 309 | |
00d2865b NC |
310 | for (i = 0; mcu_types[i].name; i++) |
311 | { | |
312 | int len = strlen (mcu_types[i].name); | |
1dab94dd | 313 | |
00d2865b | 314 | x += len + 1; |
1dab94dd | 315 | |
00d2865b | 316 | if (x < 75) |
c6a7ab1f | 317 | fprintf (stream, " %s", mcu_types[i].name); |
00d2865b NC |
318 | else |
319 | { | |
320 | fprintf (stream, "\n %s", mcu_types[i].name); | |
321 | x = len + 2; | |
322 | } | |
323 | } | |
1dab94dd | 324 | |
c6a7ab1f | 325 | fprintf (stream, "\n"); |
00d2865b NC |
326 | } |
327 | ||
adde6300 | 328 | static inline char * |
dc191a8f | 329 | skip_space (char *s) |
adde6300 AM |
330 | { |
331 | while (*s == ' ' || *s == '\t') | |
332 | ++s; | |
333 | return s; | |
334 | } | |
335 | ||
336 | /* Extract one word from FROM and copy it to TO. */ | |
c6a7ab1f | 337 | |
adde6300 AM |
338 | static char * |
339 | extract_word (char *from, char *to, int limit) | |
340 | { | |
341 | char *op_start; | |
342 | char *op_end; | |
343 | int size = 0; | |
344 | ||
345 | /* Drop leading whitespace. */ | |
346 | from = skip_space (from); | |
347 | *to = 0; | |
c6a7ab1f | 348 | |
adde6300 | 349 | /* Find the op code end. */ |
c6a7ab1f | 350 | for (op_start = op_end = from; *op_end != 0 && is_part_of_name (*op_end);) |
adde6300 AM |
351 | { |
352 | to[size++] = *op_end++; | |
353 | if (size + 1 >= limit) | |
354 | break; | |
355 | } | |
1dab94dd | 356 | |
adde6300 AM |
357 | to[size] = 0; |
358 | return op_end; | |
359 | } | |
360 | ||
361 | int | |
dc191a8f NC |
362 | md_estimate_size_before_relax (fragS *fragp ATTRIBUTE_UNUSED, |
363 | asection *seg ATTRIBUTE_UNUSED) | |
adde6300 AM |
364 | { |
365 | abort (); | |
366 | return 0; | |
367 | } | |
368 | ||
369 | void | |
dc191a8f | 370 | md_show_usage (FILE *stream) |
adde6300 | 371 | { |
00d2865b NC |
372 | fprintf (stream, |
373 | _("AVR options:\n" | |
adde6300 AM |
374 | " -mmcu=[avr-name] select microcontroller variant\n" |
375 | " [avr-name] can be:\n" | |
7b21ac3f EW |
376 | " avr1 - classic AVR core without data RAM\n" |
377 | " avr2 - classic AVR core with up to 8K program memory\n" | |
378 | " avr25 - classic AVR core with up to 8K program memory\n" | |
379 | " plus the MOVW instruction\n" | |
380 | " avr3 - classic AVR core with up to 64K program memory\n" | |
381 | " avr31 - classic AVR core with up to 128K program memory\n" | |
382 | " avr35 - classic AVR core with up to 64K program memory\n" | |
383 | " plus the MOVW instruction\n" | |
384 | " avr4 - enhanced AVR core with up to 8K program memory\n" | |
385 | " avr5 - enhanced AVR core with up to 64K program memory\n" | |
386 | " avr51 - enhanced AVR core with up to 128K program memory\n" | |
387 | " avr6 - enhanced AVR core with up to 256K program memory\n" | |
adde6300 | 388 | " or immediate microcontroller name.\n")); |
00d2865b NC |
389 | fprintf (stream, |
390 | _(" -mall-opcodes accept all AVR opcodes, even if not supported by MCU\n" | |
391 | " -mno-skip-bug disable warnings for skipping two-word instructions\n" | |
392 | " (default for avr4, avr5)\n" | |
393 | " -mno-wrap reject rjmp/rcall instructions with 8K wrap-around\n" | |
394 | " (default for avr3, avr5)\n")); | |
395 | show_mcu_list (stream); | |
adde6300 AM |
396 | } |
397 | ||
398 | static void | |
dc191a8f | 399 | avr_set_arch (int dummy ATTRIBUTE_UNUSED) |
adde6300 | 400 | { |
dc191a8f | 401 | char str[20]; |
1dab94dd | 402 | |
adde6300 | 403 | input_line_pointer = extract_word (input_line_pointer, str, 20); |
00d2865b | 404 | md_parse_option (OPTION_MMCU, str); |
adde6300 AM |
405 | bfd_set_arch_mach (stdoutput, TARGET_ARCH, avr_mcu->mach); |
406 | } | |
407 | ||
408 | int | |
dc191a8f | 409 | md_parse_option (int c, char *arg) |
adde6300 | 410 | { |
00d2865b | 411 | switch (c) |
adde6300 | 412 | { |
00d2865b NC |
413 | case OPTION_MMCU: |
414 | { | |
415 | int i; | |
416 | char *s = alloca (strlen (arg) + 1); | |
adde6300 | 417 | |
00d2865b NC |
418 | { |
419 | char *t = s; | |
420 | char *arg1 = arg; | |
421 | ||
422 | do | |
3882b010 | 423 | *t = TOLOWER (*arg1++); |
00d2865b NC |
424 | while (*t++); |
425 | } | |
426 | ||
427 | for (i = 0; mcu_types[i].name; ++i) | |
428 | if (strcmp (mcu_types[i].name, s) == 0) | |
429 | break; | |
adde6300 | 430 | |
00d2865b NC |
431 | if (!mcu_types[i].name) |
432 | { | |
433 | show_mcu_list (stderr); | |
434 | as_fatal (_("unknown MCU: %s\n"), arg); | |
435 | } | |
65aa24b6 | 436 | |
00d2865b NC |
437 | /* It is OK to redefine mcu type within the same avr[1-5] bfd machine |
438 | type - this for allows passing -mmcu=... via gcc ASM_SPEC as well | |
439 | as .arch ... in the asm output at the same time. */ | |
00d2865b NC |
440 | if (avr_mcu == &default_mcu || avr_mcu->mach == mcu_types[i].mach) |
441 | avr_mcu = &mcu_types[i]; | |
442 | else | |
443 | as_fatal (_("redefinition of mcu type `%s' to `%s'"), | |
444 | avr_mcu->name, mcu_types[i].name); | |
445 | return 1; | |
446 | } | |
447 | case OPTION_ALL_OPCODES: | |
448 | avr_opt.all_opcodes = 1; | |
449 | return 1; | |
450 | case OPTION_NO_SKIP_BUG: | |
451 | avr_opt.no_skip_bug = 1; | |
452 | return 1; | |
453 | case OPTION_NO_WRAP: | |
454 | avr_opt.no_wrap = 1; | |
adde6300 AM |
455 | return 1; |
456 | } | |
1dab94dd | 457 | |
adde6300 AM |
458 | return 0; |
459 | } | |
460 | ||
461 | symbolS * | |
dc191a8f | 462 | md_undefined_symbol (char *name ATTRIBUTE_UNUSED) |
adde6300 | 463 | { |
dc191a8f | 464 | return NULL; |
adde6300 AM |
465 | } |
466 | ||
adde6300 | 467 | char * |
dc191a8f | 468 | md_atof (int type, char *litP, int *sizeP) |
adde6300 | 469 | { |
499ac353 | 470 | return ieee_md_atof (type, litP, sizeP, FALSE); |
adde6300 AM |
471 | } |
472 | ||
473 | void | |
dc191a8f NC |
474 | md_convert_frag (bfd *abfd ATTRIBUTE_UNUSED, |
475 | asection *sec ATTRIBUTE_UNUSED, | |
476 | fragS *fragP ATTRIBUTE_UNUSED) | |
adde6300 AM |
477 | { |
478 | abort (); | |
479 | } | |
480 | ||
adde6300 | 481 | void |
dc191a8f | 482 | md_begin (void) |
adde6300 | 483 | { |
df136245 | 484 | unsigned int i; |
adde6300 | 485 | struct avr_opcodes_s *opcode; |
dc191a8f | 486 | |
c6a7ab1f | 487 | avr_hash = hash_new (); |
adde6300 AM |
488 | |
489 | /* Insert unique names into hash table. This hash table then provides a | |
490 | quick index to the first opcode with a particular name in the opcode | |
491 | table. */ | |
adde6300 AM |
492 | for (opcode = avr_opcodes; opcode->name; opcode++) |
493 | hash_insert (avr_hash, opcode->name, (char *) opcode); | |
494 | ||
495 | avr_mod_hash = hash_new (); | |
496 | ||
dc191a8f | 497 | for (i = 0; i < ARRAY_SIZE (exp_mod); ++i) |
8ad7c533 NC |
498 | { |
499 | mod_index m; | |
500 | ||
501 | m.index = i + 10; | |
502 | hash_insert (avr_mod_hash, EXP_MOD_NAME (i), m.ptr); | |
503 | } | |
c6a7ab1f | 504 | |
adde6300 AM |
505 | bfd_set_arch_mach (stdoutput, TARGET_ARCH, avr_mcu->mach); |
506 | } | |
507 | ||
df136245 | 508 | /* Resolve STR as a constant expression and return the result. |
c6a7ab1f | 509 | If result greater than MAX then error. */ |
df136245 DC |
510 | |
511 | static unsigned int | |
dc191a8f | 512 | avr_get_constant (char *str, int max) |
df136245 DC |
513 | { |
514 | expressionS ex; | |
dc191a8f | 515 | |
df136245 DC |
516 | str = skip_space (str); |
517 | input_line_pointer = str; | |
dc191a8f | 518 | expression (& ex); |
df136245 DC |
519 | |
520 | if (ex.X_op != O_constant) | |
521 | as_bad (_("constant value required")); | |
522 | ||
523 | if (ex.X_add_number > max || ex.X_add_number < 0) | |
73f4d86e | 524 | as_bad (_("number must be positive and less than %d"), max + 1); |
1dab94dd | 525 | |
df136245 DC |
526 | return ex.X_add_number; |
527 | } | |
528 | ||
dc191a8f | 529 | /* Parse for ldd/std offset. */ |
df136245 | 530 | |
dc191a8f NC |
531 | static void |
532 | avr_offset_expression (expressionS *exp) | |
adde6300 | 533 | { |
dc191a8f NC |
534 | char *str = input_line_pointer; |
535 | char *tmp; | |
536 | char op[8]; | |
adde6300 | 537 | |
dc191a8f NC |
538 | tmp = str; |
539 | str = extract_word (str, op, sizeof (op)); | |
540 | ||
541 | input_line_pointer = tmp; | |
542 | expression (exp); | |
543 | ||
544 | /* Warn about expressions that fail to use lo8 (). */ | |
545 | if (exp->X_op == O_constant) | |
adde6300 | 546 | { |
dc191a8f | 547 | int x = exp->X_add_number; |
28c9d252 | 548 | |
dc191a8f NC |
549 | if (x < -255 || x > 255) |
550 | as_warn (_("constant out of 8-bit range: %d"), x); | |
551 | } | |
552 | } | |
adde6300 | 553 | |
dc191a8f | 554 | /* Parse ordinary expression. */ |
adde6300 | 555 | |
dc191a8f NC |
556 | static char * |
557 | parse_exp (char *s, expressionS *op) | |
558 | { | |
559 | input_line_pointer = s; | |
560 | expression (op); | |
561 | if (op->X_op == O_absent) | |
562 | as_bad (_("missing operand")); | |
563 | return input_line_pointer; | |
564 | } | |
1dab94dd | 565 | |
dc191a8f NC |
566 | /* Parse special expressions (needed for LDI command): |
567 | xx8 (address) | |
568 | xx8 (-address) | |
569 | pm_xx8 (address) | |
570 | pm_xx8 (-address) | |
571 | where xx is: hh, hi, lo. */ | |
adde6300 | 572 | |
dc191a8f NC |
573 | static bfd_reloc_code_real_type |
574 | avr_ldi_expression (expressionS *exp) | |
575 | { | |
576 | char *str = input_line_pointer; | |
577 | char *tmp; | |
578 | char op[8]; | |
579 | int mod; | |
28c9d252 NC |
580 | int linker_stubs_should_be_generated = 0; |
581 | ||
dc191a8f | 582 | tmp = str; |
adde6300 | 583 | |
dc191a8f | 584 | str = extract_word (str, op, sizeof (op)); |
adde6300 | 585 | |
dc191a8f NC |
586 | if (op[0]) |
587 | { | |
8ad7c533 | 588 | mod_index m; |
28c9d252 | 589 | |
8ad7c533 NC |
590 | m.ptr = hash_find (avr_mod_hash, op); |
591 | mod = m.index; | |
1dab94dd | 592 | |
dc191a8f NC |
593 | if (mod) |
594 | { | |
595 | int closes = 0; | |
b170af93 | 596 | |
dc191a8f NC |
597 | mod -= 10; |
598 | str = skip_space (str); | |
00d2865b | 599 | |
dc191a8f NC |
600 | if (*str == '(') |
601 | { | |
28c9d252 | 602 | bfd_reloc_code_real_type reloc_to_return; |
dc191a8f | 603 | int neg_p = 0; |
00d2865b | 604 | |
dc191a8f | 605 | ++str; |
00d2865b | 606 | |
dc191a8f | 607 | if (strncmp ("pm(", str, 3) == 0 |
28c9d252 NC |
608 | || strncmp ("gs(",str,3) == 0 |
609 | || strncmp ("-(gs(",str,5) == 0 | |
dc191a8f NC |
610 | || strncmp ("-(pm(", str, 5) == 0) |
611 | { | |
612 | if (HAVE_PM_P (mod)) | |
613 | { | |
614 | ++mod; | |
615 | ++closes; | |
616 | } | |
617 | else | |
618 | as_bad (_("illegal expression")); | |
b170af93 | 619 | |
28c9d252 NC |
620 | if (str[0] == 'g' || str[2] == 'g') |
621 | linker_stubs_should_be_generated = 1; | |
622 | ||
dc191a8f NC |
623 | if (*str == '-') |
624 | { | |
625 | neg_p = 1; | |
626 | ++closes; | |
627 | str += 5; | |
628 | } | |
629 | else | |
630 | str += 3; | |
631 | } | |
adde6300 | 632 | |
dc191a8f NC |
633 | if (*str == '-' && *(str + 1) == '(') |
634 | { | |
635 | neg_p ^= 1; | |
636 | ++closes; | |
637 | str += 2; | |
638 | } | |
750bce0e | 639 | |
dc191a8f NC |
640 | input_line_pointer = str; |
641 | expression (exp); | |
750bce0e | 642 | |
dc191a8f NC |
643 | do |
644 | { | |
645 | if (*input_line_pointer != ')') | |
646 | { | |
647 | as_bad (_("`)' required")); | |
648 | break; | |
649 | } | |
650 | input_line_pointer++; | |
651 | } | |
652 | while (closes--); | |
653 | ||
28c9d252 NC |
654 | reloc_to_return = |
655 | neg_p ? EXP_MOD_NEG_RELOC (mod) : EXP_MOD_RELOC (mod); | |
656 | if (linker_stubs_should_be_generated) | |
657 | { | |
658 | switch (reloc_to_return) | |
659 | { | |
660 | case BFD_RELOC_AVR_LO8_LDI_PM: | |
661 | reloc_to_return = BFD_RELOC_AVR_LO8_LDI_GS; | |
662 | break; | |
663 | case BFD_RELOC_AVR_HI8_LDI_PM: | |
664 | reloc_to_return = BFD_RELOC_AVR_HI8_LDI_GS; | |
665 | break; | |
666 | ||
667 | default: | |
0a903bab NC |
668 | /* PR 5523: Do not generate a warning here, |
669 | legitimate code can trigger this case. */ | |
670 | break; | |
28c9d252 NC |
671 | } |
672 | } | |
673 | return reloc_to_return; | |
dc191a8f NC |
674 | } |
675 | } | |
676 | } | |
750bce0e NC |
677 | |
678 | input_line_pointer = tmp; | |
679 | expression (exp); | |
680 | ||
681 | /* Warn about expressions that fail to use lo8 (). */ | |
682 | if (exp->X_op == O_constant) | |
683 | { | |
684 | int x = exp->X_add_number; | |
dc191a8f | 685 | |
750bce0e NC |
686 | if (x < -255 || x > 255) |
687 | as_warn (_("constant out of 8-bit range: %d"), x); | |
688 | } | |
dc191a8f NC |
689 | |
690 | return BFD_RELOC_AVR_LDI; | |
750bce0e NC |
691 | } |
692 | ||
df136245 | 693 | /* Parse one instruction operand. |
c6a7ab1f NC |
694 | Return operand bitmask. Also fixups can be generated. */ |
695 | ||
adde6300 | 696 | static unsigned int |
dc191a8f NC |
697 | avr_operand (struct avr_opcodes_s *opcode, |
698 | int where, | |
699 | char *op, | |
700 | char **line) | |
adde6300 | 701 | { |
adde6300 | 702 | expressionS op_expr; |
df136245 DC |
703 | unsigned int op_mask = 0; |
704 | char *str = skip_space (*line); | |
adde6300 | 705 | |
adde6300 AM |
706 | switch (*op) |
707 | { | |
708 | /* Any register operand. */ | |
709 | case 'w': | |
710 | case 'd': | |
711 | case 'r': | |
b170af93 DC |
712 | case 'a': |
713 | case 'v': | |
c6a7ab1f NC |
714 | if (*str == 'r' || *str == 'R') |
715 | { | |
716 | char r_name[20]; | |
1dab94dd | 717 | |
c6a7ab1f | 718 | str = extract_word (str, r_name, sizeof (r_name)); |
65b1d096 | 719 | op_mask = 0xff; |
3882b010 | 720 | if (ISDIGIT (r_name[1])) |
c6a7ab1f NC |
721 | { |
722 | if (r_name[2] == '\0') | |
723 | op_mask = r_name[1] - '0'; | |
724 | else if (r_name[1] != '0' | |
3882b010 | 725 | && ISDIGIT (r_name[2]) |
c6a7ab1f NC |
726 | && r_name[3] == '\0') |
727 | op_mask = (r_name[1] - '0') * 10 + r_name[2] - '0'; | |
728 | } | |
729 | } | |
730 | else | |
731 | { | |
732 | op_mask = avr_get_constant (str, 31); | |
733 | str = input_line_pointer; | |
734 | } | |
1dab94dd | 735 | |
c6a7ab1f NC |
736 | if (op_mask <= 31) |
737 | { | |
738 | switch (*op) | |
739 | { | |
740 | case 'a': | |
741 | if (op_mask < 16 || op_mask > 23) | |
742 | as_bad (_("register r16-r23 required")); | |
743 | op_mask -= 16; | |
744 | break; | |
1dab94dd | 745 | |
c6a7ab1f NC |
746 | case 'd': |
747 | if (op_mask < 16) | |
748 | as_bad (_("register number above 15 required")); | |
749 | op_mask -= 16; | |
750 | break; | |
1dab94dd | 751 | |
c6a7ab1f NC |
752 | case 'v': |
753 | if (op_mask & 1) | |
754 | as_bad (_("even register number required")); | |
755 | op_mask >>= 1; | |
756 | break; | |
1dab94dd | 757 | |
c6a7ab1f | 758 | case 'w': |
65b1d096 | 759 | if ((op_mask & 1) || op_mask < 24) |
c6a7ab1f | 760 | as_bad (_("register r24, r26, r28 or r30 required")); |
65b1d096 | 761 | op_mask = (op_mask - 24) >> 1; |
c6a7ab1f NC |
762 | break; |
763 | } | |
764 | break; | |
765 | } | |
766 | as_bad (_("register name or number from 0 to 31 required")); | |
adde6300 AM |
767 | break; |
768 | ||
769 | case 'e': | |
770 | { | |
771 | char c; | |
1dab94dd | 772 | |
adde6300 AM |
773 | if (*str == '-') |
774 | { | |
c6a7ab1f | 775 | str = skip_space (str + 1); |
adde6300 AM |
776 | op_mask = 0x1002; |
777 | } | |
3882b010 | 778 | c = TOLOWER (*str); |
adde6300 AM |
779 | if (c == 'x') |
780 | op_mask |= 0x100c; | |
781 | else if (c == 'y') | |
782 | op_mask |= 0x8; | |
783 | else if (c != 'z') | |
00d2865b | 784 | as_bad (_("pointer register (X, Y or Z) required")); |
adde6300 | 785 | |
c6a7ab1f | 786 | str = skip_space (str + 1); |
adde6300 AM |
787 | if (*str == '+') |
788 | { | |
789 | ++str; | |
790 | if (op_mask & 2) | |
00d2865b | 791 | as_bad (_("cannot both predecrement and postincrement")); |
adde6300 AM |
792 | op_mask |= 0x1001; |
793 | } | |
e38c9cc2 | 794 | |
1188e082 | 795 | /* avr1 can do "ld r,Z" and "st Z,r" but no other pointer |
e38c9cc2 | 796 | registers, no predecrement, no postincrement. */ |
00d2865b NC |
797 | if (!avr_opt.all_opcodes && (op_mask & 0x100F) |
798 | && !(avr_mcu->isa & AVR_ISA_SRAM)) | |
799 | as_bad (_("addressing mode not supported")); | |
adde6300 AM |
800 | } |
801 | break; | |
802 | ||
b170af93 | 803 | case 'z': |
c6a7ab1f NC |
804 | if (*str == '-') |
805 | as_bad (_("can't predecrement")); | |
1dab94dd | 806 | |
c6a7ab1f NC |
807 | if (! (*str == 'z' || *str == 'Z')) |
808 | as_bad (_("pointer register Z required")); | |
1dab94dd | 809 | |
c6a7ab1f NC |
810 | str = skip_space (str + 1); |
811 | ||
812 | if (*str == '+') | |
813 | { | |
814 | ++str; | |
815 | op_mask |= 1; | |
816 | } | |
d669d37f NC |
817 | |
818 | /* attiny26 can do "lpm" and "lpm r,Z" but not "lpm r,Z+". */ | |
819 | if (!avr_opt.all_opcodes | |
820 | && (op_mask & 0x0001) | |
821 | && !(avr_mcu->isa & AVR_ISA_MOVW)) | |
822 | as_bad (_("postincrement not supported")); | |
b170af93 DC |
823 | break; |
824 | ||
adde6300 AM |
825 | case 'b': |
826 | { | |
3882b010 | 827 | char c = TOLOWER (*str++); |
1dab94dd | 828 | |
adde6300 AM |
829 | if (c == 'y') |
830 | op_mask |= 0x8; | |
831 | else if (c != 'z') | |
00d2865b | 832 | as_bad (_("pointer register (Y or Z) required")); |
adde6300 AM |
833 | str = skip_space (str); |
834 | if (*str++ == '+') | |
835 | { | |
750bce0e NC |
836 | input_line_pointer = str; |
837 | avr_offset_expression (& op_expr); | |
adde6300 | 838 | str = input_line_pointer; |
750bce0e NC |
839 | fix_new_exp (frag_now, where, 3, |
840 | &op_expr, FALSE, BFD_RELOC_AVR_6); | |
adde6300 AM |
841 | } |
842 | } | |
843 | break; | |
844 | ||
845 | case 'h': | |
c6a7ab1f NC |
846 | str = parse_exp (str, &op_expr); |
847 | fix_new_exp (frag_now, where, opcode->insn_size * 2, | |
b34976b6 | 848 | &op_expr, FALSE, BFD_RELOC_AVR_CALL); |
adde6300 AM |
849 | break; |
850 | ||
851 | case 'L': | |
c6a7ab1f NC |
852 | str = parse_exp (str, &op_expr); |
853 | fix_new_exp (frag_now, where, opcode->insn_size * 2, | |
b34976b6 | 854 | &op_expr, TRUE, BFD_RELOC_AVR_13_PCREL); |
adde6300 AM |
855 | break; |
856 | ||
857 | case 'l': | |
c6a7ab1f NC |
858 | str = parse_exp (str, &op_expr); |
859 | fix_new_exp (frag_now, where, opcode->insn_size * 2, | |
b34976b6 | 860 | &op_expr, TRUE, BFD_RELOC_AVR_7_PCREL); |
adde6300 AM |
861 | break; |
862 | ||
863 | case 'i': | |
c6a7ab1f NC |
864 | str = parse_exp (str, &op_expr); |
865 | fix_new_exp (frag_now, where + 2, opcode->insn_size * 2, | |
b34976b6 | 866 | &op_expr, FALSE, BFD_RELOC_16); |
adde6300 AM |
867 | break; |
868 | ||
869 | case 'M': | |
870 | { | |
871 | bfd_reloc_code_real_type r_type; | |
1dab94dd | 872 | |
c6a7ab1f NC |
873 | input_line_pointer = str; |
874 | r_type = avr_ldi_expression (&op_expr); | |
875 | str = input_line_pointer; | |
adde6300 | 876 | fix_new_exp (frag_now, where, 3, |
b34976b6 | 877 | &op_expr, FALSE, r_type); |
adde6300 AM |
878 | } |
879 | break; | |
880 | ||
881 | case 'n': | |
882 | { | |
883 | unsigned int x; | |
1dab94dd | 884 | |
adde6300 AM |
885 | x = ~avr_get_constant (str, 255); |
886 | str = input_line_pointer; | |
887 | op_mask |= (x & 0xf) | ((x << 4) & 0xf00); | |
888 | } | |
889 | break; | |
890 | ||
891 | case 'K': | |
750bce0e NC |
892 | input_line_pointer = str; |
893 | avr_offset_expression (& op_expr); | |
894 | str = input_line_pointer; | |
895 | fix_new_exp (frag_now, where, 3, | |
896 | & op_expr, FALSE, BFD_RELOC_AVR_6_ADIW); | |
adde6300 AM |
897 | break; |
898 | ||
899 | case 'S': | |
900 | case 's': | |
901 | { | |
902 | unsigned int x; | |
1dab94dd | 903 | |
adde6300 AM |
904 | x = avr_get_constant (str, 7); |
905 | str = input_line_pointer; | |
906 | if (*op == 'S') | |
907 | x <<= 4; | |
908 | op_mask |= x; | |
909 | } | |
910 | break; | |
911 | ||
912 | case 'P': | |
913 | { | |
914 | unsigned int x; | |
1dab94dd | 915 | |
adde6300 AM |
916 | x = avr_get_constant (str, 63); |
917 | str = input_line_pointer; | |
918 | op_mask |= (x & 0xf) | ((x & 0x30) << 5); | |
919 | } | |
920 | break; | |
921 | ||
922 | case 'p': | |
923 | { | |
924 | unsigned int x; | |
1dab94dd | 925 | |
adde6300 AM |
926 | x = avr_get_constant (str, 31); |
927 | str = input_line_pointer; | |
928 | op_mask |= x << 3; | |
929 | } | |
930 | break; | |
1dab94dd | 931 | |
1188e082 DC |
932 | case '?': |
933 | break; | |
1dab94dd | 934 | |
adde6300 | 935 | default: |
00d2865b | 936 | as_bad (_("unknown constraint `%c'"), *op); |
adde6300 | 937 | } |
1dab94dd | 938 | |
adde6300 AM |
939 | *line = str; |
940 | return op_mask; | |
941 | } | |
942 | ||
dc191a8f NC |
943 | /* Parse instruction operands. |
944 | Return binary opcode. */ | |
945 | ||
946 | static unsigned int | |
947 | avr_operands (struct avr_opcodes_s *opcode, char **line) | |
948 | { | |
949 | char *op = opcode->constraints; | |
950 | unsigned int bin = opcode->bin_opcode; | |
951 | char *frag = frag_more (opcode->insn_size * 2); | |
952 | char *str = *line; | |
953 | int where = frag - frag_now->fr_literal; | |
954 | static unsigned int prev = 0; /* Previous opcode. */ | |
955 | ||
956 | /* Opcode have operands. */ | |
957 | if (*op) | |
958 | { | |
959 | unsigned int reg1 = 0; | |
960 | unsigned int reg2 = 0; | |
961 | int reg1_present = 0; | |
962 | int reg2_present = 0; | |
963 | ||
964 | /* Parse first operand. */ | |
965 | if (REGISTER_P (*op)) | |
966 | reg1_present = 1; | |
967 | reg1 = avr_operand (opcode, where, op, &str); | |
968 | ++op; | |
969 | ||
970 | /* Parse second operand. */ | |
971 | if (*op) | |
972 | { | |
973 | if (*op == ',') | |
974 | ++op; | |
975 | ||
976 | if (*op == '=') | |
977 | { | |
978 | reg2 = reg1; | |
979 | reg2_present = 1; | |
980 | } | |
981 | else | |
982 | { | |
983 | if (REGISTER_P (*op)) | |
984 | reg2_present = 1; | |
985 | ||
986 | str = skip_space (str); | |
987 | if (*str++ != ',') | |
988 | as_bad (_("`,' required")); | |
989 | str = skip_space (str); | |
990 | ||
991 | reg2 = avr_operand (opcode, where, op, &str); | |
992 | } | |
993 | ||
994 | if (reg1_present && reg2_present) | |
995 | reg2 = (reg2 & 0xf) | ((reg2 << 5) & 0x200); | |
996 | else if (reg2_present) | |
997 | reg2 <<= 4; | |
998 | } | |
999 | if (reg1_present) | |
1000 | reg1 <<= 4; | |
1001 | bin |= reg1 | reg2; | |
1002 | } | |
1003 | ||
1004 | /* Detect undefined combinations (like ld r31,Z+). */ | |
1005 | if (!avr_opt.all_opcodes && AVR_UNDEF_P (bin)) | |
1006 | as_warn (_("undefined combination of operands")); | |
1007 | ||
1008 | if (opcode->insn_size == 2) | |
1009 | { | |
1010 | /* Warn if the previous opcode was cpse/sbic/sbis/sbrc/sbrs | |
1011 | (AVR core bug, fixed in the newer devices). */ | |
1012 | if (!(avr_opt.no_skip_bug || | |
1013 | (avr_mcu->isa & (AVR_ISA_MUL | AVR_ISA_MOVW))) | |
1014 | && AVR_SKIP_P (prev)) | |
1015 | as_warn (_("skipping two-word instruction")); | |
1016 | ||
1017 | bfd_putl32 ((bfd_vma) bin, frag); | |
1018 | } | |
1019 | else | |
1020 | bfd_putl16 ((bfd_vma) bin, frag); | |
1021 | ||
1022 | prev = bin; | |
1023 | *line = str; | |
1024 | return bin; | |
1025 | } | |
1026 | ||
adde6300 AM |
1027 | /* GAS will call this function for each section at the end of the assembly, |
1028 | to permit the CPU backend to adjust the alignment of a section. */ | |
c6a7ab1f | 1029 | |
adde6300 | 1030 | valueT |
dc191a8f | 1031 | md_section_align (asection *seg, valueT addr) |
adde6300 AM |
1032 | { |
1033 | int align = bfd_get_section_alignment (stdoutput, seg); | |
1034 | return ((addr + (1 << align) - 1) & (-1 << align)); | |
1035 | } | |
1036 | ||
1037 | /* If you define this macro, it should return the offset between the | |
1038 | address of a PC relative fixup and the position from which the PC | |
1039 | relative adjustment should be made. On many processors, the base | |
1040 | of a PC relative instruction is the next instruction, so this | |
1041 | macro would return the length of an instruction. */ | |
c6a7ab1f | 1042 | |
adde6300 | 1043 | long |
dc191a8f | 1044 | md_pcrel_from_section (fixS *fixp, segT sec) |
adde6300 | 1045 | { |
c6a7ab1f | 1046 | if (fixp->fx_addsy != (symbolS *) NULL |
adde6300 AM |
1047 | && (!S_IS_DEFINED (fixp->fx_addsy) |
1048 | || (S_GET_SEGMENT (fixp->fx_addsy) != sec))) | |
1049 | return 0; | |
1dab94dd | 1050 | |
adde6300 AM |
1051 | return fixp->fx_frag->fr_address + fixp->fx_where; |
1052 | } | |
1053 | ||
1054 | /* GAS will call this for each fixup. It should store the correct | |
c6a7ab1f NC |
1055 | value in the object file. */ |
1056 | ||
94f592af | 1057 | void |
dc191a8f | 1058 | md_apply_fix (fixS *fixP, valueT * valP, segT seg) |
adde6300 AM |
1059 | { |
1060 | unsigned char *where; | |
1061 | unsigned long insn; | |
a161fe53 | 1062 | long value = *valP; |
adde6300 | 1063 | |
94f592af NC |
1064 | if (fixP->fx_addsy == (symbolS *) NULL) |
1065 | fixP->fx_done = 1; | |
1066 | ||
87733541 AM |
1067 | else if (fixP->fx_pcrel) |
1068 | { | |
1069 | segT s = S_GET_SEGMENT (fixP->fx_addsy); | |
1070 | ||
1071 | if (s == seg || s == absolute_section) | |
1072 | { | |
1073 | value += S_GET_VALUE (fixP->fx_addsy); | |
1074 | fixP->fx_done = 1; | |
1075 | } | |
1076 | } | |
1077 | ||
a161fe53 AM |
1078 | /* We don't actually support subtracting a symbol. */ |
1079 | if (fixP->fx_subsy != (symbolS *) NULL) | |
1080 | as_bad_where (fixP->fx_file, fixP->fx_line, _("expression too complex")); | |
1dab94dd | 1081 | |
94f592af | 1082 | switch (fixP->fx_r_type) |
adde6300 AM |
1083 | { |
1084 | default: | |
94f592af | 1085 | fixP->fx_no_overflow = 1; |
adde6300 AM |
1086 | break; |
1087 | case BFD_RELOC_AVR_7_PCREL: | |
1088 | case BFD_RELOC_AVR_13_PCREL: | |
1089 | case BFD_RELOC_32: | |
1090 | case BFD_RELOC_16: | |
1091 | case BFD_RELOC_AVR_CALL: | |
1092 | break; | |
1093 | } | |
1094 | ||
94f592af | 1095 | if (fixP->fx_done) |
adde6300 AM |
1096 | { |
1097 | /* Fetch the instruction, insert the fully resolved operand | |
1098 | value, and stuff the instruction back again. */ | |
2132e3a3 | 1099 | where = (unsigned char *) fixP->fx_frag->fr_literal + fixP->fx_where; |
adde6300 AM |
1100 | insn = bfd_getl16 (where); |
1101 | ||
94f592af | 1102 | switch (fixP->fx_r_type) |
adde6300 AM |
1103 | { |
1104 | case BFD_RELOC_AVR_7_PCREL: | |
1105 | if (value & 1) | |
94f592af | 1106 | as_bad_where (fixP->fx_file, fixP->fx_line, |
adde6300 | 1107 | _("odd address operand: %ld"), value); |
1dab94dd | 1108 | |
adde6300 AM |
1109 | /* Instruction addresses are always right-shifted by 1. */ |
1110 | value >>= 1; | |
1111 | --value; /* Correct PC. */ | |
1dab94dd | 1112 | |
adde6300 | 1113 | if (value < -64 || value > 63) |
94f592af | 1114 | as_bad_where (fixP->fx_file, fixP->fx_line, |
adde6300 AM |
1115 | _("operand out of range: %ld"), value); |
1116 | value = (value << 3) & 0x3f8; | |
1117 | bfd_putl16 ((bfd_vma) (value | insn), where); | |
1118 | break; | |
1119 | ||
1120 | case BFD_RELOC_AVR_13_PCREL: | |
1121 | if (value & 1) | |
94f592af | 1122 | as_bad_where (fixP->fx_file, fixP->fx_line, |
adde6300 | 1123 | _("odd address operand: %ld"), value); |
1dab94dd | 1124 | |
adde6300 AM |
1125 | /* Instruction addresses are always right-shifted by 1. */ |
1126 | value >>= 1; | |
1127 | --value; /* Correct PC. */ | |
adde6300 AM |
1128 | |
1129 | if (value < -2048 || value > 2047) | |
1130 | { | |
65aa24b6 | 1131 | /* No wrap for devices with >8K of program memory. */ |
00d2865b | 1132 | if ((avr_mcu->isa & AVR_ISA_MEGA) || avr_opt.no_wrap) |
94f592af | 1133 | as_bad_where (fixP->fx_file, fixP->fx_line, |
adde6300 AM |
1134 | _("operand out of range: %ld"), value); |
1135 | } | |
1136 | ||
1137 | value &= 0xfff; | |
1138 | bfd_putl16 ((bfd_vma) (value | insn), where); | |
1139 | break; | |
1140 | ||
1141 | case BFD_RELOC_32: | |
1142 | bfd_putl16 ((bfd_vma) value, where); | |
1143 | break; | |
1144 | ||
1145 | case BFD_RELOC_16: | |
1146 | bfd_putl16 ((bfd_vma) value, where); | |
1147 | break; | |
1148 | ||
1149 | case BFD_RELOC_AVR_16_PM: | |
c6a7ab1f | 1150 | bfd_putl16 ((bfd_vma) (value >> 1), where); |
adde6300 AM |
1151 | break; |
1152 | ||
750bce0e NC |
1153 | case BFD_RELOC_AVR_LDI: |
1154 | if (value > 255) | |
1155 | as_bad_where (fixP->fx_file, fixP->fx_line, | |
1156 | _("operand out of range: %ld"), value); | |
1157 | bfd_putl16 ((bfd_vma) insn | LDI_IMMEDIATE (value), where); | |
1158 | break; | |
1159 | ||
1160 | case BFD_RELOC_AVR_6: | |
1161 | if ((value > 63) || (value < 0)) | |
1162 | as_bad_where (fixP->fx_file, fixP->fx_line, | |
1163 | _("operand out of range: %ld"), value); | |
1164 | bfd_putl16 ((bfd_vma) insn | ((value & 7) | ((value & (3 << 3)) << 7) | ((value & (1 << 5)) << 8)), where); | |
1165 | break; | |
1166 | ||
1167 | case BFD_RELOC_AVR_6_ADIW: | |
1168 | if ((value > 63) || (value < 0)) | |
1169 | as_bad_where (fixP->fx_file, fixP->fx_line, | |
1170 | _("operand out of range: %ld"), value); | |
1171 | bfd_putl16 ((bfd_vma) insn | (value & 0xf) | ((value & 0x30) << 2), where); | |
1172 | break; | |
1173 | ||
adde6300 AM |
1174 | case BFD_RELOC_AVR_LO8_LDI: |
1175 | bfd_putl16 ((bfd_vma) insn | LDI_IMMEDIATE (value), where); | |
1176 | break; | |
1177 | ||
adde6300 AM |
1178 | case BFD_RELOC_AVR_HI8_LDI: |
1179 | bfd_putl16 ((bfd_vma) insn | LDI_IMMEDIATE (value >> 8), where); | |
1180 | break; | |
1181 | ||
df406460 | 1182 | case BFD_RELOC_AVR_MS8_LDI: |
adde6300 AM |
1183 | bfd_putl16 ((bfd_vma) insn | LDI_IMMEDIATE (value >> 24), where); |
1184 | break; | |
1185 | ||
1186 | case BFD_RELOC_AVR_HH8_LDI: | |
1187 | bfd_putl16 ((bfd_vma) insn | LDI_IMMEDIATE (value >> 16), where); | |
1188 | break; | |
1189 | ||
1190 | case BFD_RELOC_AVR_LO8_LDI_NEG: | |
1191 | bfd_putl16 ((bfd_vma) insn | LDI_IMMEDIATE (-value), where); | |
1192 | break; | |
1193 | ||
adde6300 AM |
1194 | case BFD_RELOC_AVR_HI8_LDI_NEG: |
1195 | bfd_putl16 ((bfd_vma) insn | LDI_IMMEDIATE (-value >> 8), where); | |
1196 | break; | |
1197 | ||
df406460 | 1198 | case BFD_RELOC_AVR_MS8_LDI_NEG: |
adde6300 AM |
1199 | bfd_putl16 ((bfd_vma) insn | LDI_IMMEDIATE (-value >> 24), where); |
1200 | break; | |
1201 | ||
1202 | case BFD_RELOC_AVR_HH8_LDI_NEG: | |
1203 | bfd_putl16 ((bfd_vma) insn | LDI_IMMEDIATE (-value >> 16), where); | |
1204 | break; | |
1205 | ||
1206 | case BFD_RELOC_AVR_LO8_LDI_PM: | |
1207 | bfd_putl16 ((bfd_vma) insn | LDI_IMMEDIATE (value >> 1), where); | |
1208 | break; | |
1209 | ||
1210 | case BFD_RELOC_AVR_HI8_LDI_PM: | |
1211 | bfd_putl16 ((bfd_vma) insn | LDI_IMMEDIATE (value >> 9), where); | |
1212 | break; | |
1213 | ||
1214 | case BFD_RELOC_AVR_HH8_LDI_PM: | |
1215 | bfd_putl16 ((bfd_vma) insn | LDI_IMMEDIATE (value >> 17), where); | |
1216 | break; | |
1217 | ||
1218 | case BFD_RELOC_AVR_LO8_LDI_PM_NEG: | |
1219 | bfd_putl16 ((bfd_vma) insn | LDI_IMMEDIATE (-value >> 1), where); | |
1220 | break; | |
1221 | ||
1222 | case BFD_RELOC_AVR_HI8_LDI_PM_NEG: | |
1223 | bfd_putl16 ((bfd_vma) insn | LDI_IMMEDIATE (-value >> 9), where); | |
1224 | break; | |
1225 | ||
1226 | case BFD_RELOC_AVR_HH8_LDI_PM_NEG: | |
1227 | bfd_putl16 ((bfd_vma) insn | LDI_IMMEDIATE (-value >> 17), where); | |
1228 | break; | |
1229 | ||
1230 | case BFD_RELOC_AVR_CALL: | |
1231 | { | |
1232 | unsigned long x; | |
1dab94dd | 1233 | |
adde6300 AM |
1234 | x = bfd_getl16 (where); |
1235 | if (value & 1) | |
94f592af | 1236 | as_bad_where (fixP->fx_file, fixP->fx_line, |
adde6300 AM |
1237 | _("odd address operand: %ld"), value); |
1238 | value >>= 1; | |
1239 | x |= ((value & 0x10000) | ((value << 3) & 0x1f00000)) >> 16; | |
1240 | bfd_putl16 ((bfd_vma) x, where); | |
c6a7ab1f | 1241 | bfd_putl16 ((bfd_vma) (value & 0xffff), where + 2); |
adde6300 AM |
1242 | } |
1243 | break; | |
1244 | ||
1245 | default: | |
c6a7ab1f | 1246 | as_fatal (_("line %d: unknown relocation type: 0x%x"), |
94f592af | 1247 | fixP->fx_line, fixP->fx_r_type); |
adde6300 AM |
1248 | break; |
1249 | } | |
1250 | } | |
1251 | else | |
1252 | { | |
a61a9fbc | 1253 | switch ((int) fixP->fx_r_type) |
adde6300 AM |
1254 | { |
1255 | case -BFD_RELOC_AVR_HI8_LDI_NEG: | |
1256 | case -BFD_RELOC_AVR_HI8_LDI: | |
1257 | case -BFD_RELOC_AVR_LO8_LDI_NEG: | |
1258 | case -BFD_RELOC_AVR_LO8_LDI: | |
94f592af | 1259 | as_bad_where (fixP->fx_file, fixP->fx_line, |
adde6300 | 1260 | _("only constant expression allowed")); |
94f592af | 1261 | fixP->fx_done = 1; |
adde6300 AM |
1262 | break; |
1263 | default: | |
1264 | break; | |
1265 | } | |
adde6300 | 1266 | } |
adde6300 AM |
1267 | } |
1268 | ||
7be1c489 AM |
1269 | /* GAS will call this to generate a reloc, passing the resulting reloc |
1270 | to `bfd_install_relocation'. This currently works poorly, as | |
1271 | `bfd_install_relocation' often does the wrong thing, and instances of | |
1272 | `tc_gen_reloc' have been written to work around the problems, which | |
1273 | in turns makes it difficult to fix `bfd_install_relocation'. */ | |
adde6300 AM |
1274 | |
1275 | /* If while processing a fixup, a reloc really needs to be created | |
1276 | then it is done here. */ | |
1277 | ||
1278 | arelent * | |
dc191a8f NC |
1279 | tc_gen_reloc (asection *seg ATTRIBUTE_UNUSED, |
1280 | fixS *fixp) | |
adde6300 AM |
1281 | { |
1282 | arelent *reloc; | |
1283 | ||
df406460 NC |
1284 | if (fixp->fx_addsy && fixp->fx_subsy) |
1285 | { | |
1286 | long value = 0; | |
1287 | ||
1288 | if ((S_GET_SEGMENT (fixp->fx_addsy) != S_GET_SEGMENT (fixp->fx_subsy)) | |
1289 | || S_GET_SEGMENT (fixp->fx_addsy) == undefined_section) | |
1290 | { | |
1291 | as_bad_where (fixp->fx_file, fixp->fx_line, | |
1292 | "Difference of symbols in different sections is not supported"); | |
1293 | return NULL; | |
1294 | } | |
1295 | ||
28c9d252 | 1296 | /* We are dealing with two symbols defined in the same section. |
df406460 NC |
1297 | Let us fix-up them here. */ |
1298 | value += S_GET_VALUE (fixp->fx_addsy); | |
1299 | value -= S_GET_VALUE (fixp->fx_subsy); | |
1300 | ||
1301 | /* When fx_addsy and fx_subsy both are zero, md_apply_fix | |
1302 | only takes it's second operands for the fixup value. */ | |
1303 | fixp->fx_addsy = NULL; | |
1304 | fixp->fx_subsy = NULL; | |
1305 | md_apply_fix (fixp, (valueT *) &value, NULL); | |
1306 | ||
1307 | return NULL; | |
1308 | } | |
1309 | ||
dc191a8f | 1310 | reloc = xmalloc (sizeof (arelent)); |
adde6300 | 1311 | |
dc191a8f | 1312 | reloc->sym_ptr_ptr = xmalloc (sizeof (asymbol *)); |
adde6300 AM |
1313 | *reloc->sym_ptr_ptr = symbol_get_bfdsym (fixp->fx_addsy); |
1314 | ||
1315 | reloc->address = fixp->fx_frag->fr_address + fixp->fx_where; | |
1316 | reloc->howto = bfd_reloc_type_lookup (stdoutput, fixp->fx_r_type); | |
1317 | if (reloc->howto == (reloc_howto_type *) NULL) | |
1318 | { | |
1319 | as_bad_where (fixp->fx_file, fixp->fx_line, | |
c6a7ab1f NC |
1320 | _("reloc %d not supported by object file format"), |
1321 | (int) fixp->fx_r_type); | |
adde6300 AM |
1322 | return NULL; |
1323 | } | |
1324 | ||
1325 | if (fixp->fx_r_type == BFD_RELOC_VTABLE_INHERIT | |
1326 | || fixp->fx_r_type == BFD_RELOC_VTABLE_ENTRY) | |
1327 | reloc->address = fixp->fx_offset; | |
1328 | ||
1329 | reloc->addend = fixp->fx_offset; | |
1330 | ||
1331 | return reloc; | |
1332 | } | |
1333 | ||
adde6300 | 1334 | void |
dc191a8f | 1335 | md_assemble (char *str) |
adde6300 | 1336 | { |
c6a7ab1f | 1337 | struct avr_opcodes_s *opcode; |
adde6300 AM |
1338 | char op[11]; |
1339 | ||
c6a7ab1f | 1340 | str = skip_space (extract_word (str, op, sizeof (op))); |
adde6300 AM |
1341 | |
1342 | if (!op[0]) | |
00d2865b | 1343 | as_bad (_("can't find opcode ")); |
adde6300 AM |
1344 | |
1345 | opcode = (struct avr_opcodes_s *) hash_find (avr_hash, op); | |
1346 | ||
1347 | if (opcode == NULL) | |
1348 | { | |
00d2865b | 1349 | as_bad (_("unknown opcode `%s'"), op); |
adde6300 AM |
1350 | return; |
1351 | } | |
1352 | ||
b170af93 | 1353 | /* Special case for opcodes with optional operands (lpm, elpm) - |
1188e082 | 1354 | version with operands exists in avr_opcodes[] in the next entry. */ |
c6a7ab1f | 1355 | |
1188e082 DC |
1356 | if (*str && *opcode->constraints == '?') |
1357 | ++opcode; | |
b170af93 | 1358 | |
00d2865b NC |
1359 | if (!avr_opt.all_opcodes && (opcode->isa & avr_mcu->isa) != opcode->isa) |
1360 | as_bad (_("illegal opcode %s for mcu %s"), opcode->name, avr_mcu->name); | |
adde6300 AM |
1361 | |
1362 | /* We used to set input_line_pointer to the result of get_operands, | |
1363 | but that is wrong. Our caller assumes we don't change it. */ | |
1364 | { | |
1365 | char *t = input_line_pointer; | |
dc191a8f | 1366 | |
adde6300 | 1367 | avr_operands (opcode, &str); |
b170af93 | 1368 | if (*skip_space (str)) |
00d2865b | 1369 | as_bad (_("garbage at end of line")); |
adde6300 AM |
1370 | input_line_pointer = t; |
1371 | } | |
1372 | } | |
1373 | ||
adde6300 | 1374 | /* Flag to pass `pm' mode between `avr_parse_cons_expression' and |
c6a7ab1f | 1375 | `avr_cons_fix_new'. */ |
adde6300 AM |
1376 | static int exp_mod_pm = 0; |
1377 | ||
1378 | /* Parse special CONS expression: pm (expression) | |
28c9d252 NC |
1379 | or alternatively: gs (expression). |
1380 | These are used for addressing program memory. | |
c6a7ab1f NC |
1381 | Relocation: BFD_RELOC_AVR_16_PM. */ |
1382 | ||
adde6300 | 1383 | void |
dc191a8f | 1384 | avr_parse_cons_expression (expressionS *exp, int nbytes) |
adde6300 | 1385 | { |
c6a7ab1f | 1386 | char *tmp; |
adde6300 AM |
1387 | |
1388 | exp_mod_pm = 0; | |
1389 | ||
1390 | tmp = input_line_pointer = skip_space (input_line_pointer); | |
1391 | ||
1392 | if (nbytes == 2) | |
1393 | { | |
28c9d252 NC |
1394 | char *pm_name1 = "pm"; |
1395 | char *pm_name2 = "gs"; | |
1396 | int len = strlen (pm_name1); | |
1397 | /* len must be the same for both pm identifiers. */ | |
1dab94dd | 1398 | |
28c9d252 NC |
1399 | if (strncasecmp (input_line_pointer, pm_name1, len) == 0 |
1400 | || strncasecmp (input_line_pointer, pm_name2, len) == 0) | |
adde6300 AM |
1401 | { |
1402 | input_line_pointer = skip_space (input_line_pointer + len); | |
1dab94dd | 1403 | |
adde6300 AM |
1404 | if (*input_line_pointer == '(') |
1405 | { | |
1406 | input_line_pointer = skip_space (input_line_pointer + 1); | |
1407 | exp_mod_pm = 1; | |
1408 | expression (exp); | |
1dab94dd | 1409 | |
adde6300 AM |
1410 | if (*input_line_pointer == ')') |
1411 | ++input_line_pointer; | |
1412 | else | |
1413 | { | |
00d2865b | 1414 | as_bad (_("`)' required")); |
adde6300 AM |
1415 | exp_mod_pm = 0; |
1416 | } | |
1dab94dd | 1417 | |
adde6300 AM |
1418 | return; |
1419 | } | |
1dab94dd | 1420 | |
adde6300 AM |
1421 | input_line_pointer = tmp; |
1422 | } | |
1423 | } | |
1dab94dd | 1424 | |
adde6300 AM |
1425 | expression (exp); |
1426 | } | |
1427 | ||
1428 | void | |
dc191a8f NC |
1429 | avr_cons_fix_new (fragS *frag, |
1430 | int where, | |
1431 | int nbytes, | |
1432 | expressionS *exp) | |
adde6300 AM |
1433 | { |
1434 | if (exp_mod_pm == 0) | |
1435 | { | |
1436 | if (nbytes == 2) | |
b34976b6 | 1437 | fix_new_exp (frag, where, nbytes, exp, FALSE, BFD_RELOC_16); |
adde6300 | 1438 | else if (nbytes == 4) |
b34976b6 | 1439 | fix_new_exp (frag, where, nbytes, exp, FALSE, BFD_RELOC_32); |
adde6300 | 1440 | else |
00d2865b | 1441 | as_bad (_("illegal %srelocation size: %d"), "", nbytes); |
adde6300 AM |
1442 | } |
1443 | else | |
1444 | { | |
1445 | if (nbytes == 2) | |
b34976b6 | 1446 | fix_new_exp (frag, where, nbytes, exp, FALSE, BFD_RELOC_AVR_16_PM); |
adde6300 | 1447 | else |
00d2865b | 1448 | as_bad (_("illegal %srelocation size: %d"), "`pm' ", nbytes); |
adde6300 AM |
1449 | exp_mod_pm = 0; |
1450 | } | |
1451 | } |