Commit | Line | Data |
---|---|---|
252b5132 | 1 | /* tc-z8k.c -- Assemble code for the Zilog Z800n |
f87a1e0c CG |
2 | Copyright 1992, 1993, 1994, 1995, 1996, 1998, 2000, 2001, 2002, 2003, |
3 | 2005 Free Software Foundation, Inc. | |
252b5132 RH |
4 | |
5 | This file is part of GAS, the GNU Assembler. | |
6 | ||
7 | GAS is free software; you can redistribute it and/or modify | |
8 | it under the terms of the GNU General Public License as published by | |
9 | the Free Software Foundation; either version 2, or (at your option) | |
10 | any later version. | |
11 | ||
12 | GAS is distributed in the hope that it will be useful, | |
13 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
14 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
15 | GNU General Public License for more details. | |
16 | ||
17 | You should have received a copy of the GNU General Public License | |
18 | along with GAS; see the file COPYING. If not, write to the Free | |
19 | Software Foundation, 59 Temple Place - Suite 330, Boston, MA | |
20 | 02111-1307, USA. */ | |
21 | ||
e0c6ed95 AM |
22 | /* Written By Steve Chamberlain <sac@cygnus.com>. */ |
23 | ||
252b5132 RH |
24 | #define DEFINE_TABLE |
25 | #include <stdio.h> | |
26 | ||
252b5132 RH |
27 | #include "as.h" |
28 | #include "bfd.h" | |
3882b010 | 29 | #include "safe-ctype.h" |
a5d2034a | 30 | #include "opcodes/z8k-opc.h" |
252b5132 | 31 | |
63a0b638 AM |
32 | const char comment_chars[] = "!"; |
33 | const char line_comment_chars[] = "#"; | |
34 | const char line_separator_chars[] = ";"; | |
252b5132 RH |
35 | |
36 | extern int machine; | |
37 | extern int coff_flags; | |
38 | int segmented_mode; | |
39 | const int md_reloc_size; | |
40 | ||
7f31df7c CG |
41 | /* This is non-zero if target was set from the command line. */ |
42 | static int z8k_target_from_cmdline; | |
43 | ||
78a33af2 | 44 | static void |
464800ca | 45 | s_segm (int segm) |
252b5132 | 46 | { |
7f31df7c CG |
47 | if (segm) |
48 | { | |
d5bf5799 CG |
49 | segmented_mode = 1; |
50 | machine = bfd_mach_z8001; | |
51 | coff_flags = F_Z8001; | |
7f31df7c CG |
52 | } |
53 | else | |
54 | { | |
d5bf5799 CG |
55 | segmented_mode = 0; |
56 | machine = bfd_mach_z8002; | |
57 | coff_flags = F_Z8002; | |
7f31df7c | 58 | } |
252b5132 RH |
59 | } |
60 | ||
e0c6ed95 | 61 | static void |
464800ca | 62 | even (int ignore ATTRIBUTE_UNUSED) |
252b5132 RH |
63 | { |
64 | frag_align (1, 0, 0); | |
65 | record_alignment (now_seg, 1); | |
66 | } | |
67 | ||
78a33af2 | 68 | static int |
464800ca | 69 | tohex (int c) |
252b5132 | 70 | { |
3882b010 | 71 | if (ISDIGIT (c)) |
252b5132 | 72 | return c - '0'; |
3882b010 | 73 | if (ISLOWER (c)) |
252b5132 RH |
74 | return c - 'a' + 10; |
75 | return c - 'A' + 10; | |
76 | } | |
77 | ||
78a33af2 | 78 | static void |
464800ca | 79 | sval (int ignore ATTRIBUTE_UNUSED) |
252b5132 | 80 | { |
252b5132 RH |
81 | SKIP_WHITESPACE (); |
82 | if (*input_line_pointer == '\'') | |
83 | { | |
84 | int c; | |
85 | input_line_pointer++; | |
86 | c = *input_line_pointer++; | |
87 | while (c != '\'') | |
88 | { | |
89 | if (c == '%') | |
90 | { | |
91 | c = (tohex (input_line_pointer[0]) << 4) | |
92 | | tohex (input_line_pointer[1]); | |
93 | input_line_pointer += 2; | |
94 | } | |
95 | FRAG_APPEND_1_CHAR (c); | |
96 | c = *input_line_pointer++; | |
97 | } | |
98 | demand_empty_rest_of_line (); | |
99 | } | |
252b5132 | 100 | } |
e0c6ed95 AM |
101 | |
102 | /* This table describes all the machine specific pseudo-ops the assembler | |
103 | has to support. The fields are: | |
104 | pseudo-op name without dot | |
105 | function to call to execute this pseudo-op | |
106 | Integer arg to pass to the function | |
107 | */ | |
108 | ||
109 | const pseudo_typeS md_pseudo_table[] = { | |
110 | {"int" , cons , 2}, | |
111 | {"data.b" , cons , 1}, | |
112 | {"data.w" , cons , 2}, | |
113 | {"data.l" , cons , 4}, | |
114 | {"form" , listing_psize , 0}, | |
115 | {"heading", listing_title , 0}, | |
116 | {"import" , s_ignore , 0}, | |
117 | {"page" , listing_eject , 0}, | |
118 | {"program", s_ignore , 0}, | |
7f31df7c CG |
119 | {"z8001" , s_segm , 1}, |
120 | {"z8002" , s_segm , 0}, | |
e0c6ed95 | 121 | |
7f31df7c CG |
122 | {"segm" , s_segm , 1}, |
123 | {"unsegm" , s_segm , 0}, | |
124 | {"unseg" , s_segm , 0}, | |
e0c6ed95 AM |
125 | {"name" , s_app_file , 0}, |
126 | {"global" , s_globl , 0}, | |
127 | {"wval" , cons , 2}, | |
128 | {"lval" , cons , 4}, | |
129 | {"bval" , cons , 1}, | |
130 | {"sval" , sval , 0}, | |
131 | {"rsect" , obj_coff_section, 0}, | |
132 | {"sect" , obj_coff_section, 0}, | |
133 | {"block" , s_space , 0}, | |
134 | {"even" , even , 0}, | |
135 | {0 , 0 , 0} | |
252b5132 RH |
136 | }; |
137 | ||
138 | const char EXP_CHARS[] = "eE"; | |
139 | ||
e0c6ed95 AM |
140 | /* Chars that mean this number is a floating point constant. |
141 | As in 0f12.456 | |
142 | or 0d1.2345e12 */ | |
252b5132 RH |
143 | const char FLT_CHARS[] = "rRsSfFdDxXpP"; |
144 | ||
e0c6ed95 AM |
145 | /* Opcode mnemonics. */ |
146 | static struct hash_control *opcode_hash_control; | |
252b5132 RH |
147 | |
148 | void | |
464800ca | 149 | md_begin (void) |
252b5132 | 150 | { |
78a33af2 AM |
151 | const opcode_entry_type *opcode; |
152 | int idx = -1; | |
252b5132 RH |
153 | |
154 | opcode_hash_control = hash_new (); | |
155 | ||
156 | for (opcode = z8k_table; opcode->name; opcode++) | |
157 | { | |
e0c6ed95 | 158 | /* Only enter unique codes into the table. */ |
78a33af2 AM |
159 | if (idx != opcode->idx) |
160 | hash_insert (opcode_hash_control, opcode->name, (char *) opcode); | |
161 | idx = opcode->idx; | |
252b5132 RH |
162 | } |
163 | ||
e0c6ed95 | 164 | /* Default to z8002. */ |
7f31df7c CG |
165 | if (! z8k_target_from_cmdline) |
166 | s_segm (0); | |
252b5132 | 167 | |
e0c6ed95 | 168 | /* Insert the pseudo ops, too. */ |
252b5132 RH |
169 | for (idx = 0; md_pseudo_table[idx].poc_name; idx++) |
170 | { | |
171 | opcode_entry_type *fake_opcode; | |
172 | fake_opcode = (opcode_entry_type *) malloc (sizeof (opcode_entry_type)); | |
879db8be NC |
173 | fake_opcode->name = md_pseudo_table[idx].poc_name; |
174 | fake_opcode->func = (void *) (md_pseudo_table + idx); | |
252b5132 RH |
175 | fake_opcode->opcode = 250; |
176 | hash_insert (opcode_hash_control, fake_opcode->name, fake_opcode); | |
177 | } | |
252b5132 RH |
178 | } |
179 | ||
19d63e5d | 180 | typedef struct z8k_op { |
f590b86e CG |
181 | /* CLASS_REG_xxx. */ |
182 | int regsize; | |
e0c6ed95 AM |
183 | |
184 | /* 0 .. 15. */ | |
185 | unsigned int reg; | |
252b5132 RH |
186 | |
187 | int mode; | |
188 | ||
e0c6ed95 AM |
189 | /* Any other register associated with the mode. */ |
190 | unsigned int x_reg; | |
191 | ||
192 | /* Any expression. */ | |
193 | expressionS exp; | |
19d63e5d | 194 | } op_type; |
252b5132 RH |
195 | |
196 | static expressionS *da_operand; | |
197 | static expressionS *imm_operand; | |
198 | ||
464800ca CG |
199 | static int reg[16]; |
200 | static int the_cc; | |
201 | static int the_ctrl; | |
202 | static int the_flags; | |
203 | static int the_interrupt; | |
78a33af2 AM |
204 | |
205 | static char * | |
464800ca | 206 | whatreg (int *reg, char *src) |
252b5132 | 207 | { |
3882b010 | 208 | if (ISDIGIT (src[1])) |
252b5132 RH |
209 | { |
210 | *reg = (src[0] - '0') * 10 + src[1] - '0'; | |
211 | return src + 2; | |
212 | } | |
213 | else | |
214 | { | |
215 | *reg = (src[0] - '0'); | |
216 | return src + 1; | |
217 | } | |
218 | } | |
219 | ||
e0c6ed95 | 220 | /* Parse operands |
252b5132 | 221 | |
e0c6ed95 AM |
222 | rh0-rh7, rl0-rl7 |
223 | r0-r15 | |
224 | rr0-rr14 | |
225 | rq0--rq12 | |
226 | WREG r0,r1,r2,r3,r4,r5,r6,r7,fp,sp | |
227 | r0l,r0h,..r7l,r7h | |
228 | @WREG | |
229 | @WREG+ | |
230 | @-WREG | |
231 | #const | |
232 | */ | |
252b5132 | 233 | |
bc0d738a NC |
234 | /* Try to parse a reg name. Return a pointer to the first character |
235 | in SRC after the reg name. */ | |
236 | ||
78a33af2 | 237 | static char * |
464800ca | 238 | parse_reg (char *src, int *mode, unsigned int *reg) |
252b5132 RH |
239 | { |
240 | char *res = 0; | |
241 | char regno; | |
242 | ||
f69532ae CG |
243 | /* Check for stack pointer "sp" alias. */ |
244 | if ((src[0] == 's' || src[0] == 'S') | |
245 | && (src[1] == 'p' || src[1] == 'P') | |
246 | && (src[2] == 0 || src[2] == ',')) | |
252b5132 RH |
247 | { |
248 | if (segmented_mode) | |
e0c6ed95 AM |
249 | { |
250 | *mode = CLASS_REG_LONG; | |
251 | *reg = 14; | |
252 | } | |
252b5132 | 253 | else |
e0c6ed95 AM |
254 | { |
255 | *mode = CLASS_REG_WORD; | |
256 | *reg = 15; | |
257 | } | |
252b5132 RH |
258 | return src + 2; |
259 | } | |
f69532ae CG |
260 | |
261 | if (src[0] == 'r' || src[0] == 'R') | |
252b5132 | 262 | { |
f69532ae | 263 | if (src[1] == 'r' || src[1] == 'R') |
e0c6ed95 | 264 | { |
28bab82b NC |
265 | if (src[2] < '0' || src[2] > '9') |
266 | return res; /* Assume no register name but a label starting with 'rr'. */ | |
e0c6ed95 AM |
267 | *mode = CLASS_REG_LONG; |
268 | res = whatreg (reg, src + 2); | |
252b5132 RH |
269 | regno = *reg; |
270 | if (regno > 14) | |
f590b86e CG |
271 | as_bad (_("register rr%d out of range"), regno); |
272 | if (regno & 1) | |
273 | as_bad (_("register rr%d does not exist"), regno); | |
e0c6ed95 | 274 | } |
f69532ae | 275 | else if (src[1] == 'h' || src[1] == 'H') |
e0c6ed95 | 276 | { |
28bab82b NC |
277 | if (src[2] < '0' || src[2] > '9') |
278 | return res; /* Assume no register name but a label starting with 'rh'. */ | |
e0c6ed95 AM |
279 | *mode = CLASS_REG_BYTE; |
280 | res = whatreg (reg, src + 2); | |
252b5132 RH |
281 | regno = *reg; |
282 | if (regno > 7) | |
f590b86e | 283 | as_bad (_("register rh%d out of range"), regno); |
e0c6ed95 | 284 | } |
f69532ae | 285 | else if (src[1] == 'l' || src[1] == 'L') |
e0c6ed95 | 286 | { |
28bab82b NC |
287 | if (src[2] < '0' || src[2] > '9') |
288 | return res; /* Assume no register name but a label starting with 'rl'. */ | |
e0c6ed95 AM |
289 | *mode = CLASS_REG_BYTE; |
290 | res = whatreg (reg, src + 2); | |
252b5132 RH |
291 | regno = *reg; |
292 | if (regno > 7) | |
f590b86e | 293 | as_bad (_("register rl%d out of range"), regno); |
e0c6ed95 AM |
294 | *reg += 8; |
295 | } | |
f69532ae | 296 | else if (src[1] == 'q' || src[1] == 'Q') |
e0c6ed95 | 297 | { |
28bab82b NC |
298 | if (src[2] < '0' || src[2] > '9') |
299 | return res; /* Assume no register name but a label starting with 'rq'. */ | |
e0c6ed95 AM |
300 | *mode = CLASS_REG_QUAD; |
301 | res = whatreg (reg, src + 2); | |
252b5132 RH |
302 | regno = *reg; |
303 | if (regno > 12) | |
f590b86e CG |
304 | as_bad (_("register rq%d out of range"), regno); |
305 | if (regno & 3) | |
306 | as_bad (_("register rq%d does not exist"), regno); | |
e0c6ed95 | 307 | } |
252b5132 | 308 | else |
e0c6ed95 | 309 | { |
28bab82b NC |
310 | if (src[1] < '0' || src[1] > '9') |
311 | return res; /* Assume no register name but a label starting with 'r'. */ | |
e0c6ed95 AM |
312 | *mode = CLASS_REG_WORD; |
313 | res = whatreg (reg, src + 1); | |
252b5132 RH |
314 | regno = *reg; |
315 | if (regno > 15) | |
f590b86e | 316 | as_bad (_("register r%d out of range"), regno); |
e0c6ed95 | 317 | } |
252b5132 RH |
318 | } |
319 | return res; | |
252b5132 RH |
320 | } |
321 | ||
78a33af2 | 322 | static char * |
464800ca | 323 | parse_exp (char *s, expressionS *op) |
252b5132 RH |
324 | { |
325 | char *save = input_line_pointer; | |
326 | char *new; | |
327 | ||
328 | input_line_pointer = s; | |
329 | expression (op); | |
330 | if (op->X_op == O_absent) | |
331 | as_bad (_("missing operand")); | |
332 | new = input_line_pointer; | |
333 | input_line_pointer = save; | |
334 | return new; | |
335 | } | |
336 | ||
337 | /* The many forms of operand: | |
338 | ||
339 | <rb> | |
340 | <r> | |
341 | <rr> | |
342 | <rq> | |
343 | @r | |
344 | #exp | |
345 | exp | |
346 | exp(r) | |
347 | r(#exp) | |
348 | r(r) | |
252b5132 RH |
349 | */ |
350 | ||
e0c6ed95 | 351 | static char * |
464800ca | 352 | checkfor (char *ptr, char what) |
252b5132 RH |
353 | { |
354 | if (*ptr == what) | |
355 | ptr++; | |
356 | else | |
e0c6ed95 AM |
357 | as_bad (_("expected %c"), what); |
358 | ||
252b5132 RH |
359 | return ptr; |
360 | } | |
361 | ||
e0c6ed95 AM |
362 | /* Make sure the mode supplied is the size of a word. */ |
363 | ||
252b5132 | 364 | static void |
464800ca | 365 | regword (int mode, char *string) |
252b5132 RH |
366 | { |
367 | int ok; | |
368 | ||
369 | ok = CLASS_REG_WORD; | |
370 | if (ok != mode) | |
371 | { | |
372 | as_bad (_("register is wrong size for a word %s"), string); | |
373 | } | |
374 | } | |
375 | ||
e0c6ed95 AM |
376 | /* Make sure the mode supplied is the size of an address. */ |
377 | ||
252b5132 | 378 | static void |
464800ca | 379 | regaddr (int mode, char *string) |
252b5132 RH |
380 | { |
381 | int ok; | |
382 | ||
383 | ok = segmented_mode ? CLASS_REG_LONG : CLASS_REG_WORD; | |
384 | if (ok != mode) | |
385 | { | |
386 | as_bad (_("register is wrong size for address %s"), string); | |
387 | } | |
388 | } | |
389 | ||
19d63e5d | 390 | struct ctrl_names { |
e0c6ed95 AM |
391 | int value; |
392 | char *name; | |
252b5132 RH |
393 | }; |
394 | ||
464800ca | 395 | static struct ctrl_names ctrl_table[] = { |
bb5737a7 CG |
396 | { 0x1, "flags" }, /* ldctlb only. */ |
397 | { 0x2, "fcw" }, /* ldctl only. Applies to all remaining control registers. */ | |
879db8be NC |
398 | { 0x3, "refresh" }, |
399 | { 0x4, "psapseg" }, | |
400 | { 0x5, "psapoff" }, | |
401 | { 0x5, "psap" }, | |
402 | { 0x6, "nspseg" }, | |
403 | { 0x7, "nspoff" }, | |
404 | { 0x7, "nsp" }, | |
405 | { 0 , 0 } | |
252b5132 | 406 | }; |
e0c6ed95 | 407 | |
252b5132 | 408 | static void |
464800ca | 409 | get_ctrl_operand (char **ptr, struct z8k_op *mode, unsigned int dst ATTRIBUTE_UNUSED) |
252b5132 RH |
410 | { |
411 | char *src = *ptr; | |
f69532ae | 412 | int i, l; |
252b5132 RH |
413 | |
414 | while (*src == ' ') | |
415 | src++; | |
416 | ||
417 | mode->mode = CLASS_CTRL; | |
418 | for (i = 0; ctrl_table[i].name; i++) | |
419 | { | |
f69532ae CG |
420 | l = strlen (ctrl_table[i].name); |
421 | if (! strncasecmp (ctrl_table[i].name, src, l)) | |
422 | { | |
423 | the_ctrl = ctrl_table[i].value; | |
424 | if (*(src + l) && *(src + l) != ',') | |
425 | break; | |
426 | *ptr = src + l; /* Valid control name found: "consume" it. */ | |
427 | return; | |
428 | } | |
252b5132 RH |
429 | } |
430 | the_ctrl = 0; | |
252b5132 RH |
431 | } |
432 | ||
19d63e5d | 433 | struct flag_names { |
252b5132 RH |
434 | int value; |
435 | char *name; | |
252b5132 RH |
436 | }; |
437 | ||
464800ca | 438 | static struct flag_names flag_table[] = { |
bb5737a7 CG |
439 | { 0x1, "P" }, |
440 | { 0x1, "V" }, | |
441 | { 0x2, "S" }, | |
442 | { 0x4, "Z" }, | |
443 | { 0x8, "C" }, | |
879db8be | 444 | { 0x0, "+" }, |
bb5737a7 | 445 | { 0x0, "," }, |
879db8be | 446 | { 0, 0 } |
252b5132 RH |
447 | }; |
448 | ||
449 | static void | |
464800ca | 450 | get_flags_operand (char **ptr, struct z8k_op *mode, unsigned int dst ATTRIBUTE_UNUSED) |
252b5132 RH |
451 | { |
452 | char *src = *ptr; | |
bb5737a7 | 453 | char c; |
252b5132 RH |
454 | int i; |
455 | int j; | |
456 | ||
457 | while (*src == ' ') | |
458 | src++; | |
459 | ||
460 | mode->mode = CLASS_FLAGS; | |
461 | the_flags = 0; | |
462 | for (j = 0; j <= 9; j++) | |
463 | { | |
e0c6ed95 | 464 | if (!src[j]) |
252b5132 | 465 | goto done; |
bb5737a7 | 466 | c = TOUPPER(src[j]); |
e0c6ed95 AM |
467 | for (i = 0; flag_table[i].name; i++) |
468 | { | |
bb5737a7 | 469 | if (flag_table[i].name[0] == c) |
e0c6ed95 AM |
470 | { |
471 | the_flags = the_flags | flag_table[i].value; | |
472 | goto match; | |
473 | } | |
474 | } | |
252b5132 RH |
475 | goto done; |
476 | match: | |
e0c6ed95 | 477 | ; |
252b5132 | 478 | } |
e0c6ed95 | 479 | done: |
252b5132 | 480 | *ptr = src + j; |
252b5132 RH |
481 | } |
482 | ||
19d63e5d | 483 | struct interrupt_names { |
252b5132 RH |
484 | int value; |
485 | char *name; | |
252b5132 RH |
486 | }; |
487 | ||
464800ca | 488 | static struct interrupt_names intr_table[] = { |
879db8be NC |
489 | { 0x1, "nvi" }, |
490 | { 0x2, "vi" }, | |
491 | { 0x3, "both" }, | |
492 | { 0x3, "all" }, | |
493 | { 0, 0 } | |
252b5132 RH |
494 | }; |
495 | ||
496 | static void | |
464800ca | 497 | get_interrupt_operand (char **ptr, struct z8k_op *mode, unsigned int dst ATTRIBUTE_UNUSED) |
252b5132 RH |
498 | { |
499 | char *src = *ptr; | |
bb5737a7 | 500 | int i, l; |
252b5132 RH |
501 | |
502 | while (*src == ' ') | |
503 | src++; | |
504 | ||
505 | mode->mode = CLASS_IMM; | |
bb5737a7 | 506 | the_interrupt = 0; |
252b5132 | 507 | |
bb5737a7 CG |
508 | while (*src) |
509 | { | |
510 | for (i = 0; intr_table[i].name; i++) | |
511 | { | |
512 | l = strlen (intr_table[i].name); | |
513 | if (! strncasecmp (intr_table[i].name, src, l)) | |
514 | { | |
515 | the_interrupt |= intr_table[i].value; | |
516 | if (*(src + l) && *(src + l) != ',') | |
517 | { | |
518 | *ptr = src + l; | |
519 | invalid: | |
520 | as_bad (_("unknown interrupt %s"), src); | |
521 | while (**ptr && ! is_end_of_line[(unsigned char) **ptr]) | |
522 | (*ptr)++; /* Consume rest of line. */ | |
523 | return; | |
524 | } | |
525 | src += l; | |
526 | if (! *src) | |
527 | { | |
528 | *ptr = src; | |
529 | return; | |
530 | } | |
531 | } | |
532 | } | |
533 | if (*src == ',') | |
534 | src++; | |
535 | else | |
e0c6ed95 | 536 | { |
bb5737a7 CG |
537 | *ptr = src; |
538 | goto invalid; | |
e0c6ed95 | 539 | } |
252b5132 | 540 | } |
bb5737a7 | 541 | |
7f31df7c | 542 | /* No interrupt type specified, opcode won't do anything. */ |
f590b86e | 543 | as_warn (_("opcode has no effect")); |
252b5132 | 544 | the_interrupt = 0x0; |
252b5132 RH |
545 | } |
546 | ||
19d63e5d | 547 | struct cc_names { |
252b5132 RH |
548 | int value; |
549 | char *name; | |
252b5132 RH |
550 | }; |
551 | ||
464800ca | 552 | static struct cc_names table[] = { |
879db8be NC |
553 | { 0x0, "f" }, |
554 | { 0x1, "lt" }, | |
555 | { 0x2, "le" }, | |
556 | { 0x3, "ule" }, | |
d5bf5799 | 557 | { 0x4, "ov/pe" }, |
879db8be | 558 | { 0x4, "ov" }, |
d5bf5799 | 559 | { 0x4, "pe/ov" }, |
879db8be NC |
560 | { 0x4, "pe" }, |
561 | { 0x5, "mi" }, | |
562 | { 0x6, "eq" }, | |
563 | { 0x6, "z" }, | |
d5bf5799 | 564 | { 0x7, "c/ult" }, |
879db8be | 565 | { 0x7, "c" }, |
d5bf5799 | 566 | { 0x7, "ult/c" }, |
879db8be NC |
567 | { 0x7, "ult" }, |
568 | { 0x8, "t" }, | |
569 | { 0x9, "ge" }, | |
570 | { 0xa, "gt" }, | |
571 | { 0xb, "ugt" }, | |
d5bf5799 | 572 | { 0xc, "nov/po" }, |
879db8be | 573 | { 0xc, "nov" }, |
d5bf5799 | 574 | { 0xc, "po/nov" }, |
879db8be NC |
575 | { 0xc, "po" }, |
576 | { 0xd, "pl" }, | |
577 | { 0xe, "ne" }, | |
578 | { 0xe, "nz" }, | |
d5bf5799 | 579 | { 0xf, "nc/uge" }, |
879db8be | 580 | { 0xf, "nc" }, |
d5bf5799 | 581 | { 0xf, "uge/nc" }, |
879db8be NC |
582 | { 0xf, "uge" }, |
583 | { 0 , 0 } | |
252b5132 RH |
584 | }; |
585 | ||
586 | static void | |
464800ca | 587 | get_cc_operand (char **ptr, struct z8k_op *mode, unsigned int dst ATTRIBUTE_UNUSED) |
252b5132 RH |
588 | { |
589 | char *src = *ptr; | |
d5bf5799 | 590 | int i, l; |
252b5132 RH |
591 | |
592 | while (*src == ' ') | |
593 | src++; | |
594 | ||
595 | mode->mode = CLASS_CC; | |
596 | for (i = 0; table[i].name; i++) | |
597 | { | |
d5bf5799 CG |
598 | l = strlen (table[i].name); |
599 | if (! strncasecmp (table[i].name, src, l)) | |
600 | { | |
601 | the_cc = table[i].value; | |
602 | if (*(src + l) && *(src + l) != ',') | |
603 | break; | |
604 | *ptr = src + l; /* Valid cc found: "consume" it. */ | |
605 | return; | |
606 | } | |
252b5132 | 607 | } |
d5bf5799 | 608 | the_cc = 0x8; /* Not recognizing the cc defaults to t. (Assuming no cc present.) */ |
252b5132 RH |
609 | } |
610 | ||
611 | static void | |
464800ca | 612 | get_operand (char **ptr, struct z8k_op *mode, unsigned int dst ATTRIBUTE_UNUSED) |
252b5132 RH |
613 | { |
614 | char *src = *ptr; | |
615 | char *end; | |
252b5132 RH |
616 | |
617 | mode->mode = 0; | |
618 | ||
619 | while (*src == ' ') | |
620 | src++; | |
621 | if (*src == '#') | |
622 | { | |
623 | mode->mode = CLASS_IMM; | |
624 | imm_operand = &(mode->exp); | |
625 | src = parse_exp (src + 1, &(mode->exp)); | |
626 | } | |
627 | else if (*src == '@') | |
628 | { | |
252b5132 | 629 | mode->mode = CLASS_IR; |
f590b86e | 630 | src = parse_reg (src + 1, &mode->regsize, &mode->reg); |
252b5132 RH |
631 | } |
632 | else | |
633 | { | |
634 | int regn; | |
635 | ||
636 | end = parse_reg (src, &mode->mode, ®n); | |
637 | ||
638 | if (end) | |
639 | { | |
640 | int nw, nr; | |
641 | ||
642 | src = end; | |
643 | if (*src == '(') | |
644 | { | |
645 | src++; | |
646 | end = parse_reg (src, &nw, &nr); | |
647 | if (end) | |
648 | { | |
e0c6ed95 | 649 | /* Got Ra(Rb). */ |
252b5132 RH |
650 | src = end; |
651 | ||
652 | if (*src != ')') | |
e0c6ed95 | 653 | as_bad (_("Missing ) in ra(rb)")); |
252b5132 | 654 | else |
e0c6ed95 | 655 | src++; |
252b5132 RH |
656 | |
657 | regaddr (mode->mode, "ra(rb) ra"); | |
252b5132 RH |
658 | mode->mode = CLASS_BX; |
659 | mode->reg = regn; | |
660 | mode->x_reg = nr; | |
661 | reg[ARG_RX] = nr; | |
662 | } | |
663 | else | |
664 | { | |
e0c6ed95 | 665 | /* Got Ra(disp). */ |
252b5132 RH |
666 | if (*src == '#') |
667 | src++; | |
668 | src = parse_exp (src, &(mode->exp)); | |
669 | src = checkfor (src, ')'); | |
670 | mode->mode = CLASS_BA; | |
671 | mode->reg = regn; | |
672 | mode->x_reg = 0; | |
673 | imm_operand = &(mode->exp); | |
674 | } | |
675 | } | |
676 | else | |
677 | { | |
678 | mode->reg = regn; | |
679 | mode->x_reg = 0; | |
680 | } | |
681 | } | |
682 | else | |
683 | { | |
e0c6ed95 | 684 | /* No initial reg. */ |
252b5132 RH |
685 | src = parse_exp (src, &(mode->exp)); |
686 | if (*src == '(') | |
687 | { | |
688 | src++; | |
689 | end = parse_reg (src, &(mode->mode), ®n); | |
690 | regword (mode->mode, "addr(Ra) ra"); | |
691 | mode->mode = CLASS_X; | |
692 | mode->reg = regn; | |
693 | mode->x_reg = 0; | |
694 | da_operand = &(mode->exp); | |
695 | src = checkfor (end, ')'); | |
696 | } | |
697 | else | |
698 | { | |
e0c6ed95 | 699 | /* Just an address. */ |
252b5132 RH |
700 | mode->mode = CLASS_DA; |
701 | mode->reg = 0; | |
702 | mode->x_reg = 0; | |
703 | da_operand = &(mode->exp); | |
704 | } | |
705 | } | |
706 | } | |
707 | *ptr = src; | |
708 | } | |
709 | ||
e0c6ed95 | 710 | static char * |
464800ca | 711 | get_operands (const opcode_entry_type *opcode, char *op_end, op_type *operand) |
252b5132 RH |
712 | { |
713 | char *ptr = op_end; | |
e0c6ed95 AM |
714 | char *savptr; |
715 | ||
252b5132 RH |
716 | switch (opcode->noperands) |
717 | { | |
718 | case 0: | |
719 | operand[0].mode = 0; | |
720 | operand[1].mode = 0; | |
d5bf5799 CG |
721 | while (*ptr == ' ') |
722 | ptr++; | |
252b5132 RH |
723 | break; |
724 | ||
725 | case 1: | |
252b5132 | 726 | if (opcode->arg_info[0] == CLASS_CC) |
d5bf5799 CG |
727 | { |
728 | get_cc_operand (&ptr, operand + 0, 0); | |
729 | while (*ptr == ' ') | |
730 | ptr++; | |
731 | if (*ptr && ! is_end_of_line[(unsigned char) *ptr]) | |
732 | { | |
733 | as_bad (_("invalid condition code '%s'"), ptr); | |
734 | while (*ptr && ! is_end_of_line[(unsigned char) *ptr]) | |
735 | ptr++; /* Consume rest of line. */ | |
736 | } | |
737 | } | |
252b5132 | 738 | else if (opcode->arg_info[0] == CLASS_FLAGS) |
bb5737a7 CG |
739 | { |
740 | get_flags_operand (&ptr, operand + 0, 0); | |
741 | while (*ptr == ' ') | |
742 | ptr++; | |
743 | if (*ptr && ! is_end_of_line[(unsigned char) *ptr]) | |
744 | { | |
745 | as_bad (_("invalid flag '%s'"), ptr); | |
746 | while (*ptr && ! is_end_of_line[(unsigned char) *ptr]) | |
747 | ptr++; /* Consume rest of line. */ | |
748 | } | |
749 | } | |
e0c6ed95 | 750 | else if (opcode->arg_info[0] == (CLASS_IMM + (ARG_IMM2))) |
14899840 | 751 | get_interrupt_operand (&ptr, operand + 0, 0); |
252b5132 | 752 | else |
14899840 NC |
753 | get_operand (&ptr, operand + 0, 0); |
754 | ||
252b5132 RH |
755 | operand[1].mode = 0; |
756 | break; | |
757 | ||
758 | case 2: | |
252b5132 RH |
759 | savptr = ptr; |
760 | if (opcode->arg_info[0] == CLASS_CC) | |
d5bf5799 CG |
761 | { |
762 | get_cc_operand (&ptr, operand + 0, 0); | |
763 | while (*ptr == ' ') | |
764 | ptr++; | |
765 | if (*ptr != ',' && strchr (ptr + 1, ',')) | |
766 | { | |
767 | savptr = ptr; | |
768 | while (*ptr != ',') | |
769 | ptr++; | |
770 | *ptr = 0; | |
771 | ptr++; | |
772 | as_bad (_("invalid condition code '%s'"), savptr); | |
773 | } | |
774 | } | |
252b5132 | 775 | else if (opcode->arg_info[0] == CLASS_CTRL) |
e0c6ed95 AM |
776 | { |
777 | get_ctrl_operand (&ptr, operand + 0, 0); | |
14899840 | 778 | |
e0c6ed95 AM |
779 | if (the_ctrl == 0) |
780 | { | |
781 | ptr = savptr; | |
782 | get_operand (&ptr, operand + 0, 0); | |
14899840 | 783 | |
e0c6ed95 | 784 | if (ptr == 0) |
879db8be | 785 | return NULL; |
e0c6ed95 AM |
786 | if (*ptr == ',') |
787 | ptr++; | |
788 | get_ctrl_operand (&ptr, operand + 1, 1); | |
bb5737a7 CG |
789 | if (the_ctrl == 0) |
790 | return NULL; | |
e0c6ed95 AM |
791 | return ptr; |
792 | } | |
793 | } | |
252b5132 | 794 | else |
14899840 NC |
795 | get_operand (&ptr, operand + 0, 0); |
796 | ||
252b5132 | 797 | if (ptr == 0) |
879db8be | 798 | return NULL; |
252b5132 | 799 | if (*ptr == ',') |
e0c6ed95 | 800 | ptr++; |
252b5132 RH |
801 | get_operand (&ptr, operand + 1, 1); |
802 | break; | |
803 | ||
804 | case 3: | |
252b5132 RH |
805 | get_operand (&ptr, operand + 0, 0); |
806 | if (*ptr == ',') | |
807 | ptr++; | |
808 | get_operand (&ptr, operand + 1, 1); | |
809 | if (*ptr == ',') | |
810 | ptr++; | |
811 | get_operand (&ptr, operand + 2, 2); | |
812 | break; | |
813 | ||
814 | case 4: | |
252b5132 RH |
815 | get_operand (&ptr, operand + 0, 0); |
816 | if (*ptr == ',') | |
817 | ptr++; | |
818 | get_operand (&ptr, operand + 1, 1); | |
819 | if (*ptr == ',') | |
820 | ptr++; | |
821 | get_operand (&ptr, operand + 2, 2); | |
822 | if (*ptr == ',') | |
823 | ptr++; | |
824 | get_cc_operand (&ptr, operand + 3, 3); | |
825 | break; | |
e0c6ed95 | 826 | |
252b5132 RH |
827 | default: |
828 | abort (); | |
829 | } | |
830 | ||
831 | return ptr; | |
832 | } | |
833 | ||
834 | /* Passed a pointer to a list of opcodes which use different | |
e0c6ed95 AM |
835 | addressing modes. Return the opcode which matches the opcodes |
836 | provided. */ | |
252b5132 | 837 | |
e0c6ed95 | 838 | static opcode_entry_type * |
464800ca | 839 | get_specific (opcode_entry_type *opcode, op_type *operands) |
252b5132 RH |
840 | { |
841 | opcode_entry_type *this_try = opcode; | |
842 | int found = 0; | |
843 | unsigned int noperands = opcode->noperands; | |
844 | ||
879db8be | 845 | int this_index = opcode->idx; |
252b5132 RH |
846 | |
847 | while (this_index == opcode->idx && !found) | |
848 | { | |
849 | unsigned int i; | |
850 | ||
851 | this_try = opcode++; | |
852 | for (i = 0; i < noperands; i++) | |
853 | { | |
879db8be | 854 | unsigned int mode = operands[i].mode; |
252b5132 | 855 | |
f590b86e CG |
856 | if (((mode & CLASS_MASK) == CLASS_IR) && ((this_try->arg_info[i] & CLASS_MASK) == CLASS_IRO)) |
857 | { | |
858 | mode = operands[i].mode = (operands[i].mode & ~CLASS_MASK) | CLASS_IRO; | |
859 | } | |
860 | ||
252b5132 RH |
861 | if ((mode & CLASS_MASK) != (this_try->arg_info[i] & CLASS_MASK)) |
862 | { | |
c03099e6 | 863 | /* It could be a pc rel operand, if this is a da mode |
e0c6ed95 | 864 | and we like disps, then insert it. */ |
252b5132 RH |
865 | |
866 | if (mode == CLASS_DA && this_try->arg_info[i] == CLASS_DISP) | |
867 | { | |
e0c6ed95 | 868 | /* This is the case. */ |
252b5132 RH |
869 | operands[i].mode = CLASS_DISP; |
870 | } | |
871 | else if (mode == CLASS_BA && this_try->arg_info[i]) | |
872 | { | |
e0c6ed95 AM |
873 | /* Can't think of a way to turn what we've been |
874 | given into something that's OK. */ | |
252b5132 RH |
875 | goto fail; |
876 | } | |
877 | else if (this_try->arg_info[i] & CLASS_PR) | |
878 | { | |
879 | if (mode == CLASS_REG_LONG && segmented_mode) | |
880 | { | |
e0c6ed95 | 881 | /* OK. */ |
252b5132 RH |
882 | } |
883 | else if (mode == CLASS_REG_WORD && !segmented_mode) | |
884 | { | |
e0c6ed95 | 885 | /* OK. */ |
252b5132 RH |
886 | } |
887 | else | |
888 | goto fail; | |
889 | } | |
890 | else | |
891 | goto fail; | |
892 | } | |
893 | switch (mode & CLASS_MASK) | |
894 | { | |
895 | default: | |
896 | break; | |
f590b86e CG |
897 | case CLASS_IRO: |
898 | if (operands[i].regsize != CLASS_REG_WORD) | |
899 | as_bad (_("invalid indirect register size")); | |
900 | reg[this_try->arg_info[i] & ARG_MASK] = operands[i].reg; | |
901 | break; | |
252b5132 | 902 | case CLASS_IR: |
f590b86e CG |
903 | if ((segmented_mode && operands[i].regsize != CLASS_REG_LONG) |
904 | || (!segmented_mode && operands[i].regsize != CLASS_REG_WORD)) | |
905 | as_bad (_("invalid indirect register size")); | |
906 | reg[this_try->arg_info[i] & ARG_MASK] = operands[i].reg; | |
907 | break; | |
908 | case CLASS_X: | |
252b5132 RH |
909 | case CLASS_BA: |
910 | case CLASS_BX: | |
911 | case CLASS_DISP: | |
912 | case CLASS_REG: | |
913 | case CLASS_REG_WORD: | |
914 | case CLASS_REG_BYTE: | |
915 | case CLASS_REG_QUAD: | |
916 | case CLASS_REG_LONG: | |
917 | case CLASS_REGN0: | |
918 | reg[this_try->arg_info[i] & ARG_MASK] = operands[i].reg; | |
919 | break; | |
bb5737a7 CG |
920 | case CLASS_CTRL: |
921 | if (this_try->opcode == OPC_ldctlb && the_ctrl != 1) | |
922 | as_bad (_("invalid control register name")); | |
923 | break; | |
252b5132 RH |
924 | } |
925 | } | |
926 | ||
927 | found = 1; | |
e0c6ed95 AM |
928 | fail: |
929 | ; | |
252b5132 RH |
930 | } |
931 | if (found) | |
932 | return this_try; | |
933 | else | |
934 | return 0; | |
935 | } | |
936 | ||
252b5132 RH |
937 | static char buffer[20]; |
938 | ||
939 | static void | |
464800ca | 940 | newfix (int ptr, int type, int size, expressionS *operand) |
252b5132 | 941 | { |
a72d6b4e CG |
942 | int is_pcrel = 0; |
943 | ||
464800ca CG |
944 | /* size is in nibbles. */ |
945 | ||
252b5132 RH |
946 | if (operand->X_add_symbol |
947 | || operand->X_op_symbol | |
948 | || operand->X_add_number) | |
949 | { | |
a72d6b4e CG |
950 | switch(type) |
951 | { | |
952 | case R_JR: | |
953 | case R_DISP7: | |
954 | case R_CALLR: | |
955 | is_pcrel = 1; | |
956 | } | |
252b5132 RH |
957 | fix_new_exp (frag_now, |
958 | ptr, | |
7f31df7c | 959 | size / 2, |
252b5132 | 960 | operand, |
a72d6b4e | 961 | is_pcrel, |
252b5132 RH |
962 | type); |
963 | } | |
964 | } | |
965 | ||
966 | static char * | |
464800ca | 967 | apply_fix (char *ptr, int type, expressionS *operand, int size) |
252b5132 | 968 | { |
7f31df7c | 969 | long n = operand->X_add_number; |
252b5132 | 970 | |
464800ca CG |
971 | /* size is in nibbles. */ |
972 | ||
7f31df7c | 973 | newfix ((ptr - buffer) / 2, type, size + 1, operand); |
252b5132 RH |
974 | switch (size) |
975 | { | |
879db8be | 976 | case 8: /* 8 nibbles == 32 bits. */ |
252b5132 RH |
977 | *ptr++ = n >> 28; |
978 | *ptr++ = n >> 24; | |
979 | *ptr++ = n >> 20; | |
980 | *ptr++ = n >> 16; | |
879db8be | 981 | case 4: /* 4 nibbles == 16 bits. */ |
252b5132 RH |
982 | *ptr++ = n >> 12; |
983 | *ptr++ = n >> 8; | |
984 | case 2: | |
985 | *ptr++ = n >> 4; | |
986 | case 1: | |
987 | *ptr++ = n >> 0; | |
988 | break; | |
989 | } | |
252b5132 | 990 | return ptr; |
252b5132 RH |
991 | } |
992 | ||
e0c6ed95 AM |
993 | /* Now we know what sort of opcodes it is. Let's build the bytes. */ |
994 | ||
252b5132 | 995 | static void |
464800ca | 996 | build_bytes (opcode_entry_type *this_try, struct z8k_op *operand ATTRIBUTE_UNUSED) |
252b5132 | 997 | { |
252b5132 | 998 | char *output_ptr = buffer; |
252b5132 | 999 | int c; |
252b5132 RH |
1000 | int nibble; |
1001 | unsigned int *class_ptr; | |
1002 | ||
1003 | frag_wane (frag_now); | |
1004 | frag_new (0); | |
1005 | ||
25d3fb58 | 1006 | memset (buffer, 0, sizeof (buffer)); |
252b5132 | 1007 | class_ptr = this_try->byte_info; |
252b5132 | 1008 | |
879db8be | 1009 | for (nibble = 0; (c = *class_ptr++); nibble++) |
252b5132 RH |
1010 | { |
1011 | ||
1012 | switch (c & CLASS_MASK) | |
1013 | { | |
1014 | default: | |
252b5132 | 1015 | abort (); |
e0c6ed95 | 1016 | |
252b5132 | 1017 | case CLASS_ADDRESS: |
e0c6ed95 | 1018 | /* Direct address, we don't cope with the SS mode right now. */ |
252b5132 RH |
1019 | if (segmented_mode) |
1020 | { | |
879db8be | 1021 | /* da_operand->X_add_number |= 0x80000000; -- Now set at relocation time. */ |
252b5132 RH |
1022 | output_ptr = apply_fix (output_ptr, R_IMM32, da_operand, 8); |
1023 | } | |
1024 | else | |
1025 | { | |
1026 | output_ptr = apply_fix (output_ptr, R_IMM16, da_operand, 4); | |
1027 | } | |
1028 | da_operand = 0; | |
1029 | break; | |
1030 | case CLASS_DISP8: | |
e0c6ed95 | 1031 | /* pc rel 8 bit */ |
252b5132 RH |
1032 | output_ptr = apply_fix (output_ptr, R_JR, da_operand, 2); |
1033 | da_operand = 0; | |
1034 | break; | |
1035 | ||
1036 | case CLASS_0DISP7: | |
e0c6ed95 | 1037 | /* pc rel 7 bit */ |
252b5132 RH |
1038 | *output_ptr = 0; |
1039 | output_ptr = apply_fix (output_ptr, R_DISP7, da_operand, 2); | |
1040 | da_operand = 0; | |
1041 | break; | |
1042 | ||
1043 | case CLASS_1DISP7: | |
e0c6ed95 | 1044 | /* pc rel 7 bit */ |
252b5132 RH |
1045 | *output_ptr = 0x80; |
1046 | output_ptr = apply_fix (output_ptr, R_DISP7, da_operand, 2); | |
e0c6ed95 | 1047 | output_ptr[-2] = 0x8; |
252b5132 RH |
1048 | da_operand = 0; |
1049 | break; | |
1050 | ||
1051 | case CLASS_BIT_1OR2: | |
1052 | *output_ptr = c & 0xf; | |
1053 | if (imm_operand) | |
1054 | { | |
1055 | if (imm_operand->X_add_number == 2) | |
e0c6ed95 | 1056 | *output_ptr |= 2; |
252b5132 | 1057 | else if (imm_operand->X_add_number != 1) |
e0c6ed95 | 1058 | as_bad (_("immediate must be 1 or 2")); |
252b5132 RH |
1059 | } |
1060 | else | |
e0c6ed95 | 1061 | as_bad (_("immediate 1 or 2 expected")); |
252b5132 RH |
1062 | output_ptr++; |
1063 | break; | |
1064 | case CLASS_CC: | |
1065 | *output_ptr++ = the_cc; | |
1066 | break; | |
e0c6ed95 | 1067 | case CLASS_0CCC: |
bb5737a7 CG |
1068 | if (the_ctrl < 2 || the_ctrl > 7) |
1069 | as_bad (_("invalid control register name")); | |
e0c6ed95 AM |
1070 | *output_ptr++ = the_ctrl; |
1071 | break; | |
1072 | case CLASS_1CCC: | |
bb5737a7 CG |
1073 | if (the_ctrl < 2 || the_ctrl > 7) |
1074 | as_bad (_("invalid control register name")); | |
e0c6ed95 AM |
1075 | *output_ptr++ = the_ctrl | 0x8; |
1076 | break; | |
1077 | case CLASS_00II: | |
1078 | *output_ptr++ = (~the_interrupt & 0x3); | |
1079 | break; | |
1080 | case CLASS_01II: | |
1081 | *output_ptr++ = (~the_interrupt & 0x3) | 0x4; | |
1082 | break; | |
1083 | case CLASS_FLAGS: | |
1084 | *output_ptr++ = the_flags; | |
1085 | break; | |
3c25c5f6 | 1086 | case CLASS_IGNORE: |
252b5132 RH |
1087 | case CLASS_BIT: |
1088 | *output_ptr++ = c & 0xf; | |
1089 | break; | |
1090 | case CLASS_REGN0: | |
1091 | if (reg[c & 0xf] == 0) | |
e0c6ed95 AM |
1092 | as_bad (_("can't use R0 here")); |
1093 | /* Fall through. */ | |
252b5132 RH |
1094 | case CLASS_REG: |
1095 | case CLASS_REG_BYTE: | |
1096 | case CLASS_REG_WORD: | |
1097 | case CLASS_REG_LONG: | |
1098 | case CLASS_REG_QUAD: | |
e0c6ed95 | 1099 | /* Insert bit mattern of right reg. */ |
252b5132 RH |
1100 | *output_ptr++ = reg[c & 0xf]; |
1101 | break; | |
1102 | case CLASS_DISP: | |
6840198f NC |
1103 | switch (c & ARG_MASK) |
1104 | { | |
1105 | case ARG_DISP12: | |
1106 | output_ptr = apply_fix (output_ptr, R_CALLR, da_operand, 4); | |
1107 | break; | |
1108 | case ARG_DISP16: | |
879db8be NC |
1109 | output_ptr = apply_fix (output_ptr, R_REL16, da_operand, 4); |
1110 | break; | |
1111 | default: | |
1112 | output_ptr = apply_fix (output_ptr, R_IMM16, da_operand, 4); | |
1113 | } | |
252b5132 RH |
1114 | da_operand = 0; |
1115 | break; | |
1116 | ||
1117 | case CLASS_IMM: | |
1118 | { | |
252b5132 RH |
1119 | switch (c & ARG_MASK) |
1120 | { | |
3c25c5f6 | 1121 | case ARG_NIM4: |
7f31df7c CG |
1122 | if (imm_operand->X_add_number > 15) |
1123 | { | |
1124 | as_bad (_("immediate value out of range")); | |
1125 | } | |
3c25c5f6 | 1126 | imm_operand->X_add_number = -imm_operand->X_add_number; |
252b5132 RH |
1127 | output_ptr = apply_fix (output_ptr, R_IMM4L, imm_operand, 1); |
1128 | break; | |
7f31df7c | 1129 | /*case ARG_IMMNMINUS1: not used. */ |
252b5132 RH |
1130 | case ARG_IMM4M1: |
1131 | imm_operand->X_add_number--; | |
7f31df7c CG |
1132 | /* Drop through. */ |
1133 | case ARG_IMM4: | |
1134 | if (imm_operand->X_add_number > 15) | |
1135 | { | |
1136 | as_bad (_("immediate value out of range")); | |
1137 | } | |
252b5132 RH |
1138 | output_ptr = apply_fix (output_ptr, R_IMM4L, imm_operand, 1); |
1139 | break; | |
1140 | case ARG_NIM8: | |
1141 | imm_operand->X_add_number = -imm_operand->X_add_number; | |
7f31df7c | 1142 | /* Drop through. */ |
252b5132 RH |
1143 | case ARG_IMM8: |
1144 | output_ptr = apply_fix (output_ptr, R_IMM8, imm_operand, 2); | |
1145 | break; | |
1146 | case ARG_IMM16: | |
1147 | output_ptr = apply_fix (output_ptr, R_IMM16, imm_operand, 4); | |
1148 | break; | |
252b5132 RH |
1149 | case ARG_IMM32: |
1150 | output_ptr = apply_fix (output_ptr, R_IMM32, imm_operand, 8); | |
1151 | break; | |
252b5132 RH |
1152 | default: |
1153 | abort (); | |
1154 | } | |
1155 | } | |
1156 | } | |
1157 | } | |
1158 | ||
e0c6ed95 | 1159 | /* Copy from the nibble buffer into the frag. */ |
252b5132 RH |
1160 | { |
1161 | int length = (output_ptr - buffer) / 2; | |
1162 | char *src = buffer; | |
1163 | char *fragp = frag_more (length); | |
1164 | ||
1165 | while (src < output_ptr) | |
1166 | { | |
1167 | *fragp = (src[0] << 4) | src[1]; | |
1168 | src += 2; | |
1169 | fragp++; | |
1170 | } | |
252b5132 | 1171 | } |
252b5132 RH |
1172 | } |
1173 | ||
1174 | /* This is the guts of the machine-dependent assembler. STR points to a | |
1994a7c7 NC |
1175 | machine dependent instruction. This function is supposed to emit |
1176 | the frags/bytes it assembles to. */ | |
252b5132 RH |
1177 | |
1178 | void | |
464800ca | 1179 | md_assemble (char *str) |
252b5132 | 1180 | { |
879db8be | 1181 | char c; |
252b5132 RH |
1182 | char *op_start; |
1183 | char *op_end; | |
252b5132 RH |
1184 | struct z8k_op operand[3]; |
1185 | opcode_entry_type *opcode; | |
252b5132 | 1186 | |
e0c6ed95 | 1187 | /* Drop leading whitespace. */ |
252b5132 RH |
1188 | while (*str == ' ') |
1189 | str++; | |
1190 | ||
e0c6ed95 | 1191 | /* Find the op code end. */ |
252b5132 | 1192 | for (op_start = op_end = str; |
d5bf5799 | 1193 | *op_end != 0 && *op_end != ' ' && ! is_end_of_line[(unsigned char) *op_end]; |
252b5132 | 1194 | op_end++) |
e0c6ed95 | 1195 | ; |
252b5132 RH |
1196 | |
1197 | if (op_end == op_start) | |
1198 | { | |
1199 | as_bad (_("can't find opcode ")); | |
1200 | } | |
1201 | c = *op_end; | |
1202 | ||
d5bf5799 | 1203 | *op_end = 0; /* Zero-terminate op code string for hash_find() call. */ |
252b5132 | 1204 | |
e0c6ed95 | 1205 | opcode = (opcode_entry_type *) hash_find (opcode_hash_control, op_start); |
252b5132 RH |
1206 | |
1207 | if (opcode == NULL) | |
1208 | { | |
1209 | as_bad (_("unknown opcode")); | |
1210 | return; | |
1211 | } | |
1212 | ||
d5bf5799 CG |
1213 | *op_end = c; /* Restore original string. */ |
1214 | ||
252b5132 RH |
1215 | if (opcode->opcode == 250) |
1216 | { | |
252b5132 RH |
1217 | pseudo_typeS *p; |
1218 | char oc; | |
252b5132 | 1219 | char *old = input_line_pointer; |
252b5132 | 1220 | |
3c25c5f6 NC |
1221 | /* Was really a pseudo op. */ |
1222 | ||
252b5132 RH |
1223 | input_line_pointer = op_end; |
1224 | ||
1225 | oc = *old; | |
1226 | *old = '\n'; | |
1227 | while (*input_line_pointer == ' ') | |
1228 | input_line_pointer++; | |
1229 | p = (pseudo_typeS *) (opcode->func); | |
1230 | ||
1231 | (p->poc_handler) (p->poc_val); | |
1232 | input_line_pointer = old; | |
1233 | *old = oc; | |
1234 | } | |
1235 | else | |
1236 | { | |
3c25c5f6 NC |
1237 | char *new_input_line_pointer; |
1238 | ||
1239 | new_input_line_pointer = get_operands (opcode, op_end, operand); | |
1240 | if (new_input_line_pointer) | |
7af0dfc7 CG |
1241 | { |
1242 | input_line_pointer = new_input_line_pointer; | |
1243 | opcode = get_specific (opcode, operand); | |
1244 | } | |
252b5132 | 1245 | |
7af0dfc7 | 1246 | if (new_input_line_pointer == NULL || opcode == NULL) |
252b5132 | 1247 | { |
e0c6ed95 | 1248 | /* Couldn't find an opcode which matched the operands. */ |
252b5132 RH |
1249 | char *where = frag_more (2); |
1250 | ||
1251 | where[0] = 0x0; | |
1252 | where[1] = 0x0; | |
1253 | ||
1254 | as_bad (_("Can't find opcode to match operands")); | |
1255 | return; | |
1256 | } | |
1257 | ||
1258 | build_bytes (opcode, operand); | |
1259 | } | |
1260 | } | |
1261 | ||
1262 | void | |
464800ca | 1263 | tc_crawl_symbol_chain (object_headers *headers ATTRIBUTE_UNUSED) |
252b5132 RH |
1264 | { |
1265 | printf (_("call to tc_crawl_symbol_chain \n")); | |
1266 | } | |
1267 | ||
7f31df7c CG |
1268 | /* We have no need to default values of symbols. */ |
1269 | ||
252b5132 | 1270 | symbolS * |
464800ca | 1271 | md_undefined_symbol (char *name ATTRIBUTE_UNUSED) |
252b5132 RH |
1272 | { |
1273 | return 0; | |
1274 | } | |
1275 | ||
1276 | void | |
464800ca | 1277 | tc_headers_hook (object_headers *headers ATTRIBUTE_UNUSED) |
252b5132 RH |
1278 | { |
1279 | printf (_("call to tc_headers_hook \n")); | |
1280 | } | |
1281 | ||
e0c6ed95 AM |
1282 | /* Various routines to kill one day. */ |
1283 | /* Equal to MAX_PRECISION in atof-ieee.c. */ | |
252b5132 RH |
1284 | #define MAX_LITTLENUMS 6 |
1285 | ||
e0c6ed95 AM |
1286 | /* Turn a string in input_line_pointer into a floating point constant |
1287 | of type TYPE, and store the appropriate bytes in *LITP. The number | |
1288 | of LITTLENUMS emitted is stored in *SIZEP. An error message is | |
1289 | returned, or NULL on OK. */ | |
1290 | ||
252b5132 | 1291 | char * |
464800ca | 1292 | md_atof (int type, char *litP, int *sizeP) |
252b5132 RH |
1293 | { |
1294 | int prec; | |
1295 | LITTLENUM_TYPE words[MAX_LITTLENUMS]; | |
1296 | LITTLENUM_TYPE *wordP; | |
1297 | char *t; | |
252b5132 RH |
1298 | |
1299 | switch (type) | |
1300 | { | |
1301 | case 'f': | |
1302 | case 'F': | |
1303 | case 's': | |
1304 | case 'S': | |
1305 | prec = 2; | |
1306 | break; | |
1307 | ||
1308 | case 'd': | |
1309 | case 'D': | |
1310 | case 'r': | |
1311 | case 'R': | |
1312 | prec = 4; | |
1313 | break; | |
1314 | ||
1315 | case 'x': | |
1316 | case 'X': | |
1317 | prec = 6; | |
1318 | break; | |
1319 | ||
1320 | case 'p': | |
1321 | case 'P': | |
1322 | prec = 6; | |
1323 | break; | |
1324 | ||
1325 | default: | |
1326 | *sizeP = 0; | |
1327 | return _("Bad call to MD_ATOF()"); | |
1328 | } | |
1329 | t = atof_ieee (input_line_pointer, type, words); | |
1330 | if (t) | |
1331 | input_line_pointer = t; | |
1332 | ||
1333 | *sizeP = prec * sizeof (LITTLENUM_TYPE); | |
1334 | for (wordP = words; prec--;) | |
1335 | { | |
1336 | md_number_to_chars (litP, (long) (*wordP++), sizeof (LITTLENUM_TYPE)); | |
1337 | litP += sizeof (LITTLENUM_TYPE); | |
1338 | } | |
1339 | return 0; | |
1340 | } | |
1341 | \f | |
5a38dc70 | 1342 | const char *md_shortopts = "z:"; |
e0c6ed95 | 1343 | |
3c25c5f6 NC |
1344 | struct option md_longopts[] = |
1345 | { | |
7f31df7c CG |
1346 | #define OPTION_RELAX (OPTION_MD_BASE) |
1347 | {"linkrelax", no_argument, NULL, OPTION_RELAX}, | |
3c25c5f6 NC |
1348 | {NULL, no_argument, NULL, 0} |
1349 | }; | |
e0c6ed95 AM |
1350 | |
1351 | size_t md_longopts_size = sizeof (md_longopts); | |
252b5132 RH |
1352 | |
1353 | int | |
464800ca | 1354 | md_parse_option (int c, char *arg) |
252b5132 RH |
1355 | { |
1356 | switch (c) | |
1357 | { | |
1358 | case 'z': | |
1359 | if (!strcmp (arg, "8001")) | |
7f31df7c | 1360 | s_segm (1); |
252b5132 | 1361 | else if (!strcmp (arg, "8002")) |
7f31df7c | 1362 | s_segm (0); |
252b5132 RH |
1363 | else |
1364 | { | |
1365 | as_bad (_("invalid architecture -z%s"), arg); | |
1366 | return 0; | |
1367 | } | |
7f31df7c CG |
1368 | z8k_target_from_cmdline = 1; |
1369 | break; | |
1370 | ||
1371 | case OPTION_RELAX: | |
1372 | linkrelax = 1; | |
252b5132 RH |
1373 | break; |
1374 | ||
1375 | default: | |
1376 | return 0; | |
1377 | } | |
1378 | ||
1379 | return 1; | |
1380 | } | |
1381 | ||
1382 | void | |
464800ca | 1383 | md_show_usage (FILE *stream) |
252b5132 | 1384 | { |
e0c6ed95 | 1385 | fprintf (stream, _("\ |
7f31df7c CG |
1386 | Z8K options:\n\ |
1387 | -z8001 generate segmented code\n\ | |
1388 | -z8002 generate unsegmented code\n\ | |
1389 | -linkrelax create linker relaxable code\n")); | |
252b5132 RH |
1390 | } |
1391 | \f | |
252b5132 | 1392 | void |
464800ca CG |
1393 | md_convert_frag (object_headers *headers ATTRIBUTE_UNUSED, |
1394 | segT seg ATTRIBUTE_UNUSED, | |
1395 | fragS *fragP ATTRIBUTE_UNUSED) | |
252b5132 | 1396 | { |
7f31df7c | 1397 | printf (_("call to md_convert_frag\n")); |
252b5132 RH |
1398 | abort (); |
1399 | } | |
1400 | ||
1401 | valueT | |
464800ca | 1402 | md_section_align (segT seg, valueT size) |
252b5132 | 1403 | { |
e0c6ed95 AM |
1404 | return ((size + (1 << section_alignment[(int) seg]) - 1) |
1405 | & (-1 << section_alignment[(int) seg])); | |
252b5132 RH |
1406 | } |
1407 | ||
a72d6b4e CG |
1408 | /* Attempt to simplify or eliminate a fixup. To indicate that a fixup |
1409 | has been eliminated, set fix->fx_done. If fix->fx_addsy is non-NULL, | |
1410 | we will have to generate a reloc entry. */ | |
252b5132 | 1411 | void |
464800ca | 1412 | md_apply_fix3 (fixS *fixP, valueT *valP, segT segment ATTRIBUTE_UNUSED) |
252b5132 | 1413 | { |
94f592af | 1414 | long val = * (long *) valP; |
252b5132 RH |
1415 | char *buf = fixP->fx_where + fixP->fx_frag->fr_literal; |
1416 | ||
1417 | switch (fixP->fx_r_type) | |
1418 | { | |
1419 | case R_IMM4L: | |
7f31df7c | 1420 | buf[0] = (buf[0] & 0xf0) | (val & 0xf); |
252b5132 RH |
1421 | break; |
1422 | ||
1423 | case R_JR: | |
a72d6b4e CG |
1424 | if (fixP->fx_addsy) |
1425 | { | |
1426 | fixP->fx_no_overflow = 1; | |
1427 | fixP->fx_done = 0; | |
1428 | } | |
1429 | else | |
1430 | { | |
f87a1e0c CG |
1431 | if (val & 1) |
1432 | as_bad_where (fixP->fx_file, fixP->fx_line, | |
1433 | _("cannot branch to odd address")); | |
1434 | val /= 2; | |
1435 | if (val > 127 || val < -128) | |
befd69ef CG |
1436 | as_bad_where (fixP->fx_file, fixP->fx_line, |
1437 | _("relative jump out of range")); | |
f87a1e0c CG |
1438 | *buf++ = val; |
1439 | fixP->fx_no_overflow = 1; | |
a72d6b4e CG |
1440 | fixP->fx_done = 1; |
1441 | } | |
252b5132 RH |
1442 | break; |
1443 | ||
1444 | case R_DISP7: | |
a72d6b4e CG |
1445 | if (fixP->fx_addsy) |
1446 | { | |
1447 | fixP->fx_no_overflow = 1; | |
1448 | fixP->fx_done = 0; | |
1449 | } | |
1450 | else | |
1451 | { | |
d5bf5799 | 1452 | if (val & 1) |
f87a1e0c CG |
1453 | as_bad_where (fixP->fx_file, fixP->fx_line, |
1454 | _("cannot branch to odd address")); | |
d5bf5799 | 1455 | val /= 2; |
a72d6b4e | 1456 | if (val > 0 || val < -127) |
f87a1e0c CG |
1457 | as_bad_where (fixP->fx_file, fixP->fx_line, |
1458 | _("relative jump out of range")); | |
a72d6b4e | 1459 | *buf = (*buf & 0x80) | (-val & 0x7f); |
d5bf5799 | 1460 | fixP->fx_no_overflow = 1; |
a72d6b4e CG |
1461 | fixP->fx_done = 1; |
1462 | } | |
7f31df7c | 1463 | break; |
252b5132 | 1464 | |
7f31df7c | 1465 | case R_CALLR: |
a72d6b4e CG |
1466 | if (fixP->fx_addsy) |
1467 | { | |
1468 | fixP->fx_no_overflow = 1; | |
1469 | fixP->fx_done = 0; | |
1470 | } | |
1471 | else | |
1472 | { | |
1473 | if (val & 1) | |
f87a1e0c CG |
1474 | as_bad_where (fixP->fx_file, fixP->fx_line, |
1475 | _("cannot branch to odd address")); | |
a72d6b4e | 1476 | if (val > 4096 || val < -4095) |
f87a1e0c CG |
1477 | as_bad_where (fixP->fx_file, fixP->fx_line, |
1478 | _("relative call out of range")); | |
a72d6b4e | 1479 | val = -val / 2; |
d5bf5799 CG |
1480 | *buf = (*buf & 0xf0) | ((val >> 8) & 0xf); |
1481 | buf++; | |
1482 | *buf++ = val & 0xff; | |
a72d6b4e CG |
1483 | fixP->fx_no_overflow = 1; |
1484 | fixP->fx_done = 1; | |
1485 | } | |
252b5132 RH |
1486 | break; |
1487 | ||
1488 | case R_IMM8: | |
7f31df7c | 1489 | *buf++ = val; |
252b5132 | 1490 | break; |
7f31df7c | 1491 | |
252b5132 RH |
1492 | case R_IMM16: |
1493 | *buf++ = (val >> 8); | |
1494 | *buf++ = val; | |
1495 | break; | |
7f31df7c | 1496 | |
252b5132 RH |
1497 | case R_IMM32: |
1498 | *buf++ = (val >> 24); | |
1499 | *buf++ = (val >> 16); | |
1500 | *buf++ = (val >> 8); | |
1501 | *buf++ = val; | |
1502 | break; | |
7f31df7c CG |
1503 | |
1504 | case R_REL16: | |
1505 | val = val - fixP->fx_frag->fr_address + fixP->fx_where - fixP->fx_size; | |
1506 | if (val > 32767 || val < -32768) | |
f87a1e0c CG |
1507 | as_bad_where (fixP->fx_file, fixP->fx_line, |
1508 | _("relative address out of range")); | |
7f31df7c CG |
1509 | *buf++ = (val >> 8); |
1510 | *buf++ = val; | |
1511 | fixP->fx_no_overflow = 1; | |
1512 | break; | |
1513 | ||
252b5132 RH |
1514 | case 0: |
1515 | md_number_to_chars (buf, val, fixP->fx_size); | |
1516 | break; | |
1517 | ||
1518 | default: | |
7f31df7c | 1519 | printf(_("md_apply_fix3: unknown r_type 0x%x\n"), fixP->fx_r_type); |
252b5132 | 1520 | abort (); |
252b5132 | 1521 | } |
94f592af NC |
1522 | |
1523 | if (fixP->fx_addsy == NULL && fixP->fx_pcrel == 0) | |
1524 | fixP->fx_done = 1; | |
252b5132 RH |
1525 | } |
1526 | ||
1527 | int | |
464800ca CG |
1528 | md_estimate_size_before_relax (fragS *fragP ATTRIBUTE_UNUSED, |
1529 | segT segment_type ATTRIBUTE_UNUSED) | |
252b5132 | 1530 | { |
7f31df7c | 1531 | printf (_("call to md_estimate_size_before_relax\n")); |
252b5132 RH |
1532 | abort (); |
1533 | } | |
1534 | ||
e0c6ed95 | 1535 | /* Put number into target byte order. */ |
252b5132 RH |
1536 | |
1537 | void | |
464800ca | 1538 | md_number_to_chars (char *ptr, valueT use, int nbytes) |
252b5132 RH |
1539 | { |
1540 | number_to_chars_bigendian (ptr, use, nbytes); | |
1541 | } | |
e0c6ed95 | 1542 | |
a72d6b4e CG |
1543 | /* On the Z8000, a PC-relative offset is relative to the address of the |
1544 | instruction plus its size. */ | |
252b5132 | 1545 | long |
464800ca | 1546 | md_pcrel_from (fixS *fixP) |
252b5132 | 1547 | { |
a72d6b4e | 1548 | return fixP->fx_size + fixP->fx_where + fixP->fx_frag->fr_address; |
252b5132 RH |
1549 | } |
1550 | ||
1551 | void | |
464800ca | 1552 | tc_coff_symbol_emit_hook (symbolS *s ATTRIBUTE_UNUSED) |
252b5132 RH |
1553 | { |
1554 | } | |
1555 | ||
1556 | void | |
464800ca | 1557 | tc_reloc_mangle (fixS *fix_ptr, struct internal_reloc *intr, bfd_vma base) |
252b5132 RH |
1558 | { |
1559 | symbolS *symbol_ptr; | |
1560 | ||
e0c6ed95 AM |
1561 | if (fix_ptr->fx_addsy |
1562 | && fix_ptr->fx_subsy) | |
252b5132 RH |
1563 | { |
1564 | symbolS *add = fix_ptr->fx_addsy; | |
1565 | symbolS *sub = fix_ptr->fx_subsy; | |
e0c6ed95 AM |
1566 | |
1567 | if (S_GET_SEGMENT (add) != S_GET_SEGMENT (sub)) | |
1568 | as_bad (_("Can't subtract symbols in different sections %s %s"), | |
1569 | S_GET_NAME (add), S_GET_NAME (sub)); | |
1570 | else | |
252b5132 | 1571 | { |
e0c6ed95 AM |
1572 | int diff = S_GET_VALUE (add) - S_GET_VALUE (sub); |
1573 | ||
1574 | fix_ptr->fx_addsy = 0; | |
1575 | fix_ptr->fx_subsy = 0; | |
1576 | fix_ptr->fx_offset += diff; | |
252b5132 | 1577 | } |
252b5132 RH |
1578 | } |
1579 | symbol_ptr = fix_ptr->fx_addsy; | |
1580 | ||
1581 | /* If this relocation is attached to a symbol then it's ok | |
e0c6ed95 | 1582 | to output it. */ |
252b5132 RH |
1583 | if (fix_ptr->fx_r_type == 0) |
1584 | { | |
e0c6ed95 | 1585 | /* cons likes to create reloc32's whatever the size of the reloc. */ |
252b5132 RH |
1586 | switch (fix_ptr->fx_size) |
1587 | { | |
1588 | case 2: | |
1589 | intr->r_type = R_IMM16; | |
1590 | break; | |
1591 | case 1: | |
1592 | intr->r_type = R_IMM8; | |
1593 | break; | |
1594 | case 4: | |
1595 | intr->r_type = R_IMM32; | |
1596 | break; | |
1597 | default: | |
1598 | abort (); | |
1599 | } | |
252b5132 RH |
1600 | } |
1601 | else | |
e0c6ed95 | 1602 | intr->r_type = fix_ptr->fx_r_type; |
252b5132 RH |
1603 | |
1604 | intr->r_vaddr = fix_ptr->fx_frag->fr_address + fix_ptr->fx_where + base; | |
1605 | intr->r_offset = fix_ptr->fx_offset; | |
1606 | ||
1607 | if (symbol_ptr) | |
1608 | intr->r_symndx = symbol_ptr->sy_number; | |
1609 | else | |
1610 | intr->r_symndx = -1; | |
1611 | } |