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 | |
4b4da160 NC |
19 | Software Foundation, 51 Franklin Street - Fifth Floor, Boston, MA |
20 | 02110-1301, USA. */ | |
252b5132 | 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; | |
252b5132 | 39 | |
7f31df7c CG |
40 | /* This is non-zero if target was set from the command line. */ |
41 | static int z8k_target_from_cmdline; | |
42 | ||
78a33af2 | 43 | static void |
464800ca | 44 | s_segm (int segm) |
252b5132 | 45 | { |
7f31df7c CG |
46 | if (segm) |
47 | { | |
d5bf5799 CG |
48 | segmented_mode = 1; |
49 | machine = bfd_mach_z8001; | |
50 | coff_flags = F_Z8001; | |
7f31df7c CG |
51 | } |
52 | else | |
53 | { | |
d5bf5799 CG |
54 | segmented_mode = 0; |
55 | machine = bfd_mach_z8002; | |
56 | coff_flags = F_Z8002; | |
7f31df7c | 57 | } |
252b5132 RH |
58 | } |
59 | ||
e0c6ed95 | 60 | static void |
464800ca | 61 | even (int ignore ATTRIBUTE_UNUSED) |
252b5132 RH |
62 | { |
63 | frag_align (1, 0, 0); | |
64 | record_alignment (now_seg, 1); | |
65 | } | |
66 | ||
78a33af2 | 67 | static int |
464800ca | 68 | tohex (int c) |
252b5132 | 69 | { |
3882b010 | 70 | if (ISDIGIT (c)) |
252b5132 | 71 | return c - '0'; |
3882b010 | 72 | if (ISLOWER (c)) |
252b5132 RH |
73 | return c - 'a' + 10; |
74 | return c - 'A' + 10; | |
75 | } | |
76 | ||
78a33af2 | 77 | static void |
464800ca | 78 | sval (int ignore ATTRIBUTE_UNUSED) |
252b5132 | 79 | { |
252b5132 RH |
80 | SKIP_WHITESPACE (); |
81 | if (*input_line_pointer == '\'') | |
82 | { | |
83 | int c; | |
84 | input_line_pointer++; | |
85 | c = *input_line_pointer++; | |
86 | while (c != '\'') | |
87 | { | |
88 | if (c == '%') | |
89 | { | |
90 | c = (tohex (input_line_pointer[0]) << 4) | |
91 | | tohex (input_line_pointer[1]); | |
92 | input_line_pointer += 2; | |
93 | } | |
94 | FRAG_APPEND_1_CHAR (c); | |
95 | c = *input_line_pointer++; | |
96 | } | |
97 | demand_empty_rest_of_line (); | |
98 | } | |
252b5132 | 99 | } |
e0c6ed95 AM |
100 | |
101 | /* This table describes all the machine specific pseudo-ops the assembler | |
102 | has to support. The fields are: | |
103 | pseudo-op name without dot | |
104 | function to call to execute this pseudo-op | |
105 | Integer arg to pass to the function | |
106 | */ | |
107 | ||
108 | const pseudo_typeS md_pseudo_table[] = { | |
109 | {"int" , cons , 2}, | |
110 | {"data.b" , cons , 1}, | |
111 | {"data.w" , cons , 2}, | |
112 | {"data.l" , cons , 4}, | |
113 | {"form" , listing_psize , 0}, | |
114 | {"heading", listing_title , 0}, | |
115 | {"import" , s_ignore , 0}, | |
116 | {"page" , listing_eject , 0}, | |
117 | {"program", s_ignore , 0}, | |
7f31df7c CG |
118 | {"z8001" , s_segm , 1}, |
119 | {"z8002" , s_segm , 0}, | |
e0c6ed95 | 120 | |
7f31df7c CG |
121 | {"segm" , s_segm , 1}, |
122 | {"unsegm" , s_segm , 0}, | |
123 | {"unseg" , s_segm , 0}, | |
e0c6ed95 AM |
124 | {"name" , s_app_file , 0}, |
125 | {"global" , s_globl , 0}, | |
126 | {"wval" , cons , 2}, | |
127 | {"lval" , cons , 4}, | |
128 | {"bval" , cons , 1}, | |
129 | {"sval" , sval , 0}, | |
130 | {"rsect" , obj_coff_section, 0}, | |
131 | {"sect" , obj_coff_section, 0}, | |
132 | {"block" , s_space , 0}, | |
133 | {"even" , even , 0}, | |
134 | {0 , 0 , 0} | |
252b5132 RH |
135 | }; |
136 | ||
137 | const char EXP_CHARS[] = "eE"; | |
138 | ||
e0c6ed95 AM |
139 | /* Chars that mean this number is a floating point constant. |
140 | As in 0f12.456 | |
141 | or 0d1.2345e12 */ | |
252b5132 RH |
142 | const char FLT_CHARS[] = "rRsSfFdDxXpP"; |
143 | ||
e0c6ed95 AM |
144 | /* Opcode mnemonics. */ |
145 | static struct hash_control *opcode_hash_control; | |
252b5132 RH |
146 | |
147 | void | |
464800ca | 148 | md_begin (void) |
252b5132 | 149 | { |
78a33af2 AM |
150 | const opcode_entry_type *opcode; |
151 | int idx = -1; | |
252b5132 RH |
152 | |
153 | opcode_hash_control = hash_new (); | |
154 | ||
155 | for (opcode = z8k_table; opcode->name; opcode++) | |
156 | { | |
e0c6ed95 | 157 | /* Only enter unique codes into the table. */ |
78a33af2 AM |
158 | if (idx != opcode->idx) |
159 | hash_insert (opcode_hash_control, opcode->name, (char *) opcode); | |
160 | idx = opcode->idx; | |
252b5132 RH |
161 | } |
162 | ||
e0c6ed95 | 163 | /* Default to z8002. */ |
7f31df7c CG |
164 | if (! z8k_target_from_cmdline) |
165 | s_segm (0); | |
252b5132 | 166 | |
e0c6ed95 | 167 | /* Insert the pseudo ops, too. */ |
252b5132 RH |
168 | for (idx = 0; md_pseudo_table[idx].poc_name; idx++) |
169 | { | |
170 | opcode_entry_type *fake_opcode; | |
171 | fake_opcode = (opcode_entry_type *) malloc (sizeof (opcode_entry_type)); | |
879db8be NC |
172 | fake_opcode->name = md_pseudo_table[idx].poc_name; |
173 | fake_opcode->func = (void *) (md_pseudo_table + idx); | |
252b5132 RH |
174 | fake_opcode->opcode = 250; |
175 | hash_insert (opcode_hash_control, fake_opcode->name, fake_opcode); | |
176 | } | |
252b5132 RH |
177 | } |
178 | ||
19d63e5d | 179 | typedef struct z8k_op { |
f590b86e CG |
180 | /* CLASS_REG_xxx. */ |
181 | int regsize; | |
e0c6ed95 AM |
182 | |
183 | /* 0 .. 15. */ | |
184 | unsigned int reg; | |
252b5132 RH |
185 | |
186 | int mode; | |
187 | ||
e0c6ed95 AM |
188 | /* Any other register associated with the mode. */ |
189 | unsigned int x_reg; | |
190 | ||
191 | /* Any expression. */ | |
192 | expressionS exp; | |
19d63e5d | 193 | } op_type; |
252b5132 RH |
194 | |
195 | static expressionS *da_operand; | |
196 | static expressionS *imm_operand; | |
197 | ||
464800ca CG |
198 | static int reg[16]; |
199 | static int the_cc; | |
200 | static int the_ctrl; | |
201 | static int the_flags; | |
202 | static int the_interrupt; | |
78a33af2 AM |
203 | |
204 | static char * | |
2132e3a3 | 205 | whatreg (unsigned int *reg, char *src) |
252b5132 | 206 | { |
3882b010 | 207 | if (ISDIGIT (src[1])) |
252b5132 RH |
208 | { |
209 | *reg = (src[0] - '0') * 10 + src[1] - '0'; | |
210 | return src + 2; | |
211 | } | |
212 | else | |
213 | { | |
214 | *reg = (src[0] - '0'); | |
215 | return src + 1; | |
216 | } | |
217 | } | |
218 | ||
e0c6ed95 | 219 | /* Parse operands |
252b5132 | 220 | |
e0c6ed95 AM |
221 | rh0-rh7, rl0-rl7 |
222 | r0-r15 | |
223 | rr0-rr14 | |
224 | rq0--rq12 | |
225 | WREG r0,r1,r2,r3,r4,r5,r6,r7,fp,sp | |
226 | r0l,r0h,..r7l,r7h | |
227 | @WREG | |
228 | @WREG+ | |
229 | @-WREG | |
230 | #const | |
231 | */ | |
252b5132 | 232 | |
bc0d738a NC |
233 | /* Try to parse a reg name. Return a pointer to the first character |
234 | in SRC after the reg name. */ | |
235 | ||
78a33af2 | 236 | static char * |
464800ca | 237 | parse_reg (char *src, int *mode, unsigned int *reg) |
252b5132 RH |
238 | { |
239 | char *res = 0; | |
240 | char regno; | |
241 | ||
f69532ae CG |
242 | /* Check for stack pointer "sp" alias. */ |
243 | if ((src[0] == 's' || src[0] == 'S') | |
244 | && (src[1] == 'p' || src[1] == 'P') | |
245 | && (src[2] == 0 || src[2] == ',')) | |
252b5132 RH |
246 | { |
247 | if (segmented_mode) | |
e0c6ed95 AM |
248 | { |
249 | *mode = CLASS_REG_LONG; | |
250 | *reg = 14; | |
251 | } | |
252b5132 | 252 | else |
e0c6ed95 AM |
253 | { |
254 | *mode = CLASS_REG_WORD; | |
255 | *reg = 15; | |
256 | } | |
252b5132 RH |
257 | return src + 2; |
258 | } | |
f69532ae CG |
259 | |
260 | if (src[0] == 'r' || src[0] == 'R') | |
252b5132 | 261 | { |
f69532ae | 262 | if (src[1] == 'r' || src[1] == 'R') |
e0c6ed95 | 263 | { |
28bab82b NC |
264 | if (src[2] < '0' || src[2] > '9') |
265 | return res; /* Assume no register name but a label starting with 'rr'. */ | |
e0c6ed95 AM |
266 | *mode = CLASS_REG_LONG; |
267 | res = whatreg (reg, src + 2); | |
252b5132 RH |
268 | regno = *reg; |
269 | if (regno > 14) | |
f590b86e CG |
270 | as_bad (_("register rr%d out of range"), regno); |
271 | if (regno & 1) | |
272 | as_bad (_("register rr%d does not exist"), regno); | |
e0c6ed95 | 273 | } |
f69532ae | 274 | else if (src[1] == 'h' || src[1] == 'H') |
e0c6ed95 | 275 | { |
28bab82b NC |
276 | if (src[2] < '0' || src[2] > '9') |
277 | return res; /* Assume no register name but a label starting with 'rh'. */ | |
e0c6ed95 AM |
278 | *mode = CLASS_REG_BYTE; |
279 | res = whatreg (reg, src + 2); | |
252b5132 RH |
280 | regno = *reg; |
281 | if (regno > 7) | |
f590b86e | 282 | as_bad (_("register rh%d out of range"), regno); |
e0c6ed95 | 283 | } |
f69532ae | 284 | else if (src[1] == 'l' || src[1] == 'L') |
e0c6ed95 | 285 | { |
28bab82b NC |
286 | if (src[2] < '0' || src[2] > '9') |
287 | return res; /* Assume no register name but a label starting with 'rl'. */ | |
e0c6ed95 AM |
288 | *mode = CLASS_REG_BYTE; |
289 | res = whatreg (reg, src + 2); | |
252b5132 RH |
290 | regno = *reg; |
291 | if (regno > 7) | |
f590b86e | 292 | as_bad (_("register rl%d out of range"), regno); |
e0c6ed95 AM |
293 | *reg += 8; |
294 | } | |
f69532ae | 295 | else if (src[1] == 'q' || src[1] == 'Q') |
e0c6ed95 | 296 | { |
28bab82b NC |
297 | if (src[2] < '0' || src[2] > '9') |
298 | return res; /* Assume no register name but a label starting with 'rq'. */ | |
e0c6ed95 AM |
299 | *mode = CLASS_REG_QUAD; |
300 | res = whatreg (reg, src + 2); | |
252b5132 RH |
301 | regno = *reg; |
302 | if (regno > 12) | |
f590b86e CG |
303 | as_bad (_("register rq%d out of range"), regno); |
304 | if (regno & 3) | |
305 | as_bad (_("register rq%d does not exist"), regno); | |
e0c6ed95 | 306 | } |
252b5132 | 307 | else |
e0c6ed95 | 308 | { |
28bab82b NC |
309 | if (src[1] < '0' || src[1] > '9') |
310 | return res; /* Assume no register name but a label starting with 'r'. */ | |
e0c6ed95 AM |
311 | *mode = CLASS_REG_WORD; |
312 | res = whatreg (reg, src + 1); | |
252b5132 RH |
313 | regno = *reg; |
314 | if (regno > 15) | |
f590b86e | 315 | as_bad (_("register r%d out of range"), regno); |
e0c6ed95 | 316 | } |
252b5132 RH |
317 | } |
318 | return res; | |
252b5132 RH |
319 | } |
320 | ||
78a33af2 | 321 | static char * |
464800ca | 322 | parse_exp (char *s, expressionS *op) |
252b5132 RH |
323 | { |
324 | char *save = input_line_pointer; | |
325 | char *new; | |
326 | ||
327 | input_line_pointer = s; | |
328 | expression (op); | |
329 | if (op->X_op == O_absent) | |
330 | as_bad (_("missing operand")); | |
331 | new = input_line_pointer; | |
332 | input_line_pointer = save; | |
333 | return new; | |
334 | } | |
335 | ||
336 | /* The many forms of operand: | |
337 | ||
338 | <rb> | |
339 | <r> | |
340 | <rr> | |
341 | <rq> | |
342 | @r | |
343 | #exp | |
344 | exp | |
345 | exp(r) | |
346 | r(#exp) | |
347 | r(r) | |
252b5132 RH |
348 | */ |
349 | ||
e0c6ed95 | 350 | static char * |
464800ca | 351 | checkfor (char *ptr, char what) |
252b5132 RH |
352 | { |
353 | if (*ptr == what) | |
354 | ptr++; | |
355 | else | |
e0c6ed95 AM |
356 | as_bad (_("expected %c"), what); |
357 | ||
252b5132 RH |
358 | return ptr; |
359 | } | |
360 | ||
e0c6ed95 AM |
361 | /* Make sure the mode supplied is the size of a word. */ |
362 | ||
252b5132 | 363 | static void |
464800ca | 364 | regword (int mode, char *string) |
252b5132 RH |
365 | { |
366 | int ok; | |
367 | ||
368 | ok = CLASS_REG_WORD; | |
369 | if (ok != mode) | |
370 | { | |
371 | as_bad (_("register is wrong size for a word %s"), string); | |
372 | } | |
373 | } | |
374 | ||
e0c6ed95 AM |
375 | /* Make sure the mode supplied is the size of an address. */ |
376 | ||
252b5132 | 377 | static void |
464800ca | 378 | regaddr (int mode, char *string) |
252b5132 RH |
379 | { |
380 | int ok; | |
381 | ||
382 | ok = segmented_mode ? CLASS_REG_LONG : CLASS_REG_WORD; | |
383 | if (ok != mode) | |
384 | { | |
385 | as_bad (_("register is wrong size for address %s"), string); | |
386 | } | |
387 | } | |
388 | ||
19d63e5d | 389 | struct ctrl_names { |
e0c6ed95 AM |
390 | int value; |
391 | char *name; | |
252b5132 RH |
392 | }; |
393 | ||
464800ca | 394 | static struct ctrl_names ctrl_table[] = { |
bb5737a7 CG |
395 | { 0x1, "flags" }, /* ldctlb only. */ |
396 | { 0x2, "fcw" }, /* ldctl only. Applies to all remaining control registers. */ | |
879db8be NC |
397 | { 0x3, "refresh" }, |
398 | { 0x4, "psapseg" }, | |
399 | { 0x5, "psapoff" }, | |
400 | { 0x5, "psap" }, | |
401 | { 0x6, "nspseg" }, | |
402 | { 0x7, "nspoff" }, | |
403 | { 0x7, "nsp" }, | |
404 | { 0 , 0 } | |
252b5132 | 405 | }; |
e0c6ed95 | 406 | |
252b5132 | 407 | static void |
464800ca | 408 | get_ctrl_operand (char **ptr, struct z8k_op *mode, unsigned int dst ATTRIBUTE_UNUSED) |
252b5132 RH |
409 | { |
410 | char *src = *ptr; | |
f69532ae | 411 | int i, l; |
252b5132 RH |
412 | |
413 | while (*src == ' ') | |
414 | src++; | |
415 | ||
416 | mode->mode = CLASS_CTRL; | |
417 | for (i = 0; ctrl_table[i].name; i++) | |
418 | { | |
f69532ae CG |
419 | l = strlen (ctrl_table[i].name); |
420 | if (! strncasecmp (ctrl_table[i].name, src, l)) | |
421 | { | |
422 | the_ctrl = ctrl_table[i].value; | |
423 | if (*(src + l) && *(src + l) != ',') | |
424 | break; | |
425 | *ptr = src + l; /* Valid control name found: "consume" it. */ | |
426 | return; | |
427 | } | |
252b5132 RH |
428 | } |
429 | the_ctrl = 0; | |
252b5132 RH |
430 | } |
431 | ||
19d63e5d | 432 | struct flag_names { |
252b5132 RH |
433 | int value; |
434 | char *name; | |
252b5132 RH |
435 | }; |
436 | ||
464800ca | 437 | static struct flag_names flag_table[] = { |
bb5737a7 CG |
438 | { 0x1, "P" }, |
439 | { 0x1, "V" }, | |
440 | { 0x2, "S" }, | |
441 | { 0x4, "Z" }, | |
442 | { 0x8, "C" }, | |
879db8be | 443 | { 0x0, "+" }, |
bb5737a7 | 444 | { 0x0, "," }, |
879db8be | 445 | { 0, 0 } |
252b5132 RH |
446 | }; |
447 | ||
448 | static void | |
464800ca | 449 | get_flags_operand (char **ptr, struct z8k_op *mode, unsigned int dst ATTRIBUTE_UNUSED) |
252b5132 RH |
450 | { |
451 | char *src = *ptr; | |
bb5737a7 | 452 | char c; |
252b5132 RH |
453 | int i; |
454 | int j; | |
455 | ||
456 | while (*src == ' ') | |
457 | src++; | |
458 | ||
459 | mode->mode = CLASS_FLAGS; | |
460 | the_flags = 0; | |
461 | for (j = 0; j <= 9; j++) | |
462 | { | |
e0c6ed95 | 463 | if (!src[j]) |
252b5132 | 464 | goto done; |
bb5737a7 | 465 | c = TOUPPER(src[j]); |
e0c6ed95 AM |
466 | for (i = 0; flag_table[i].name; i++) |
467 | { | |
bb5737a7 | 468 | if (flag_table[i].name[0] == c) |
e0c6ed95 AM |
469 | { |
470 | the_flags = the_flags | flag_table[i].value; | |
471 | goto match; | |
472 | } | |
473 | } | |
252b5132 RH |
474 | goto done; |
475 | match: | |
e0c6ed95 | 476 | ; |
252b5132 | 477 | } |
e0c6ed95 | 478 | done: |
252b5132 | 479 | *ptr = src + j; |
252b5132 RH |
480 | } |
481 | ||
19d63e5d | 482 | struct interrupt_names { |
252b5132 RH |
483 | int value; |
484 | char *name; | |
252b5132 RH |
485 | }; |
486 | ||
464800ca | 487 | static struct interrupt_names intr_table[] = { |
879db8be NC |
488 | { 0x1, "nvi" }, |
489 | { 0x2, "vi" }, | |
490 | { 0x3, "both" }, | |
491 | { 0x3, "all" }, | |
492 | { 0, 0 } | |
252b5132 RH |
493 | }; |
494 | ||
495 | static void | |
464800ca | 496 | get_interrupt_operand (char **ptr, struct z8k_op *mode, unsigned int dst ATTRIBUTE_UNUSED) |
252b5132 RH |
497 | { |
498 | char *src = *ptr; | |
bb5737a7 | 499 | int i, l; |
252b5132 RH |
500 | |
501 | while (*src == ' ') | |
502 | src++; | |
503 | ||
504 | mode->mode = CLASS_IMM; | |
bb5737a7 | 505 | the_interrupt = 0; |
252b5132 | 506 | |
bb5737a7 CG |
507 | while (*src) |
508 | { | |
509 | for (i = 0; intr_table[i].name; i++) | |
510 | { | |
511 | l = strlen (intr_table[i].name); | |
512 | if (! strncasecmp (intr_table[i].name, src, l)) | |
513 | { | |
514 | the_interrupt |= intr_table[i].value; | |
515 | if (*(src + l) && *(src + l) != ',') | |
516 | { | |
517 | *ptr = src + l; | |
518 | invalid: | |
519 | as_bad (_("unknown interrupt %s"), src); | |
520 | while (**ptr && ! is_end_of_line[(unsigned char) **ptr]) | |
521 | (*ptr)++; /* Consume rest of line. */ | |
522 | return; | |
523 | } | |
524 | src += l; | |
525 | if (! *src) | |
526 | { | |
527 | *ptr = src; | |
528 | return; | |
529 | } | |
530 | } | |
531 | } | |
532 | if (*src == ',') | |
533 | src++; | |
534 | else | |
e0c6ed95 | 535 | { |
bb5737a7 CG |
536 | *ptr = src; |
537 | goto invalid; | |
e0c6ed95 | 538 | } |
252b5132 | 539 | } |
bb5737a7 | 540 | |
7f31df7c | 541 | /* No interrupt type specified, opcode won't do anything. */ |
f590b86e | 542 | as_warn (_("opcode has no effect")); |
252b5132 | 543 | the_interrupt = 0x0; |
252b5132 RH |
544 | } |
545 | ||
19d63e5d | 546 | struct cc_names { |
252b5132 RH |
547 | int value; |
548 | char *name; | |
252b5132 RH |
549 | }; |
550 | ||
464800ca | 551 | static struct cc_names table[] = { |
879db8be NC |
552 | { 0x0, "f" }, |
553 | { 0x1, "lt" }, | |
554 | { 0x2, "le" }, | |
555 | { 0x3, "ule" }, | |
d5bf5799 | 556 | { 0x4, "ov/pe" }, |
879db8be | 557 | { 0x4, "ov" }, |
d5bf5799 | 558 | { 0x4, "pe/ov" }, |
879db8be NC |
559 | { 0x4, "pe" }, |
560 | { 0x5, "mi" }, | |
561 | { 0x6, "eq" }, | |
562 | { 0x6, "z" }, | |
d5bf5799 | 563 | { 0x7, "c/ult" }, |
879db8be | 564 | { 0x7, "c" }, |
d5bf5799 | 565 | { 0x7, "ult/c" }, |
879db8be NC |
566 | { 0x7, "ult" }, |
567 | { 0x8, "t" }, | |
568 | { 0x9, "ge" }, | |
569 | { 0xa, "gt" }, | |
570 | { 0xb, "ugt" }, | |
d5bf5799 | 571 | { 0xc, "nov/po" }, |
879db8be | 572 | { 0xc, "nov" }, |
d5bf5799 | 573 | { 0xc, "po/nov" }, |
879db8be NC |
574 | { 0xc, "po" }, |
575 | { 0xd, "pl" }, | |
576 | { 0xe, "ne" }, | |
577 | { 0xe, "nz" }, | |
d5bf5799 | 578 | { 0xf, "nc/uge" }, |
879db8be | 579 | { 0xf, "nc" }, |
d5bf5799 | 580 | { 0xf, "uge/nc" }, |
879db8be NC |
581 | { 0xf, "uge" }, |
582 | { 0 , 0 } | |
252b5132 RH |
583 | }; |
584 | ||
585 | static void | |
464800ca | 586 | get_cc_operand (char **ptr, struct z8k_op *mode, unsigned int dst ATTRIBUTE_UNUSED) |
252b5132 RH |
587 | { |
588 | char *src = *ptr; | |
d5bf5799 | 589 | int i, l; |
252b5132 RH |
590 | |
591 | while (*src == ' ') | |
592 | src++; | |
593 | ||
594 | mode->mode = CLASS_CC; | |
595 | for (i = 0; table[i].name; i++) | |
596 | { | |
d5bf5799 CG |
597 | l = strlen (table[i].name); |
598 | if (! strncasecmp (table[i].name, src, l)) | |
599 | { | |
600 | the_cc = table[i].value; | |
601 | if (*(src + l) && *(src + l) != ',') | |
602 | break; | |
603 | *ptr = src + l; /* Valid cc found: "consume" it. */ | |
604 | return; | |
605 | } | |
252b5132 | 606 | } |
d5bf5799 | 607 | the_cc = 0x8; /* Not recognizing the cc defaults to t. (Assuming no cc present.) */ |
252b5132 RH |
608 | } |
609 | ||
610 | static void | |
464800ca | 611 | get_operand (char **ptr, struct z8k_op *mode, unsigned int dst ATTRIBUTE_UNUSED) |
252b5132 RH |
612 | { |
613 | char *src = *ptr; | |
614 | char *end; | |
252b5132 RH |
615 | |
616 | mode->mode = 0; | |
617 | ||
618 | while (*src == ' ') | |
619 | src++; | |
620 | if (*src == '#') | |
621 | { | |
622 | mode->mode = CLASS_IMM; | |
623 | imm_operand = &(mode->exp); | |
624 | src = parse_exp (src + 1, &(mode->exp)); | |
625 | } | |
626 | else if (*src == '@') | |
627 | { | |
252b5132 | 628 | mode->mode = CLASS_IR; |
f590b86e | 629 | src = parse_reg (src + 1, &mode->regsize, &mode->reg); |
252b5132 RH |
630 | } |
631 | else | |
632 | { | |
2132e3a3 | 633 | unsigned int regn; |
252b5132 RH |
634 | |
635 | end = parse_reg (src, &mode->mode, ®n); | |
636 | ||
637 | if (end) | |
638 | { | |
2132e3a3 AM |
639 | int nw; |
640 | unsigned int nr; | |
252b5132 RH |
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; | |
d8cbebfd | 1184 | struct z8k_op operand[4]; |
252b5132 | 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 | ||
7f31df7c CG |
1262 | /* We have no need to default values of symbols. */ |
1263 | ||
252b5132 | 1264 | symbolS * |
464800ca | 1265 | md_undefined_symbol (char *name ATTRIBUTE_UNUSED) |
252b5132 RH |
1266 | { |
1267 | return 0; | |
1268 | } | |
1269 | ||
e0c6ed95 AM |
1270 | /* Various routines to kill one day. */ |
1271 | /* Equal to MAX_PRECISION in atof-ieee.c. */ | |
252b5132 RH |
1272 | #define MAX_LITTLENUMS 6 |
1273 | ||
e0c6ed95 AM |
1274 | /* Turn a string in input_line_pointer into a floating point constant |
1275 | of type TYPE, and store the appropriate bytes in *LITP. The number | |
1276 | of LITTLENUMS emitted is stored in *SIZEP. An error message is | |
1277 | returned, or NULL on OK. */ | |
1278 | ||
252b5132 | 1279 | char * |
464800ca | 1280 | md_atof (int type, char *litP, int *sizeP) |
252b5132 RH |
1281 | { |
1282 | int prec; | |
1283 | LITTLENUM_TYPE words[MAX_LITTLENUMS]; | |
1284 | LITTLENUM_TYPE *wordP; | |
1285 | char *t; | |
252b5132 RH |
1286 | |
1287 | switch (type) | |
1288 | { | |
1289 | case 'f': | |
1290 | case 'F': | |
1291 | case 's': | |
1292 | case 'S': | |
1293 | prec = 2; | |
1294 | break; | |
1295 | ||
1296 | case 'd': | |
1297 | case 'D': | |
1298 | case 'r': | |
1299 | case 'R': | |
1300 | prec = 4; | |
1301 | break; | |
1302 | ||
1303 | case 'x': | |
1304 | case 'X': | |
1305 | prec = 6; | |
1306 | break; | |
1307 | ||
1308 | case 'p': | |
1309 | case 'P': | |
1310 | prec = 6; | |
1311 | break; | |
1312 | ||
1313 | default: | |
1314 | *sizeP = 0; | |
1315 | return _("Bad call to MD_ATOF()"); | |
1316 | } | |
1317 | t = atof_ieee (input_line_pointer, type, words); | |
1318 | if (t) | |
1319 | input_line_pointer = t; | |
1320 | ||
1321 | *sizeP = prec * sizeof (LITTLENUM_TYPE); | |
1322 | for (wordP = words; prec--;) | |
1323 | { | |
1324 | md_number_to_chars (litP, (long) (*wordP++), sizeof (LITTLENUM_TYPE)); | |
1325 | litP += sizeof (LITTLENUM_TYPE); | |
1326 | } | |
1327 | return 0; | |
1328 | } | |
1329 | \f | |
5a38dc70 | 1330 | const char *md_shortopts = "z:"; |
e0c6ed95 | 1331 | |
3c25c5f6 NC |
1332 | struct option md_longopts[] = |
1333 | { | |
7f31df7c CG |
1334 | #define OPTION_RELAX (OPTION_MD_BASE) |
1335 | {"linkrelax", no_argument, NULL, OPTION_RELAX}, | |
3c25c5f6 NC |
1336 | {NULL, no_argument, NULL, 0} |
1337 | }; | |
e0c6ed95 AM |
1338 | |
1339 | size_t md_longopts_size = sizeof (md_longopts); | |
252b5132 RH |
1340 | |
1341 | int | |
464800ca | 1342 | md_parse_option (int c, char *arg) |
252b5132 RH |
1343 | { |
1344 | switch (c) | |
1345 | { | |
1346 | case 'z': | |
1347 | if (!strcmp (arg, "8001")) | |
7f31df7c | 1348 | s_segm (1); |
252b5132 | 1349 | else if (!strcmp (arg, "8002")) |
7f31df7c | 1350 | s_segm (0); |
252b5132 RH |
1351 | else |
1352 | { | |
1353 | as_bad (_("invalid architecture -z%s"), arg); | |
1354 | return 0; | |
1355 | } | |
7f31df7c CG |
1356 | z8k_target_from_cmdline = 1; |
1357 | break; | |
1358 | ||
1359 | case OPTION_RELAX: | |
1360 | linkrelax = 1; | |
252b5132 RH |
1361 | break; |
1362 | ||
1363 | default: | |
1364 | return 0; | |
1365 | } | |
1366 | ||
1367 | return 1; | |
1368 | } | |
1369 | ||
1370 | void | |
464800ca | 1371 | md_show_usage (FILE *stream) |
252b5132 | 1372 | { |
e0c6ed95 | 1373 | fprintf (stream, _("\ |
7f31df7c CG |
1374 | Z8K options:\n\ |
1375 | -z8001 generate segmented code\n\ | |
1376 | -z8002 generate unsegmented code\n\ | |
1377 | -linkrelax create linker relaxable code\n")); | |
252b5132 RH |
1378 | } |
1379 | \f | |
252b5132 | 1380 | void |
464800ca CG |
1381 | md_convert_frag (object_headers *headers ATTRIBUTE_UNUSED, |
1382 | segT seg ATTRIBUTE_UNUSED, | |
1383 | fragS *fragP ATTRIBUTE_UNUSED) | |
252b5132 | 1384 | { |
7f31df7c | 1385 | printf (_("call to md_convert_frag\n")); |
252b5132 RH |
1386 | abort (); |
1387 | } | |
1388 | ||
1389 | valueT | |
464800ca | 1390 | md_section_align (segT seg, valueT size) |
252b5132 | 1391 | { |
e0c6ed95 AM |
1392 | return ((size + (1 << section_alignment[(int) seg]) - 1) |
1393 | & (-1 << section_alignment[(int) seg])); | |
252b5132 RH |
1394 | } |
1395 | ||
a72d6b4e CG |
1396 | /* Attempt to simplify or eliminate a fixup. To indicate that a fixup |
1397 | has been eliminated, set fix->fx_done. If fix->fx_addsy is non-NULL, | |
1398 | we will have to generate a reloc entry. */ | |
252b5132 | 1399 | void |
55cf6793 | 1400 | md_apply_fix (fixS *fixP, valueT *valP, segT segment ATTRIBUTE_UNUSED) |
252b5132 | 1401 | { |
94f592af | 1402 | long val = * (long *) valP; |
252b5132 RH |
1403 | char *buf = fixP->fx_where + fixP->fx_frag->fr_literal; |
1404 | ||
1405 | switch (fixP->fx_r_type) | |
1406 | { | |
1407 | case R_IMM4L: | |
7f31df7c | 1408 | buf[0] = (buf[0] & 0xf0) | (val & 0xf); |
252b5132 RH |
1409 | break; |
1410 | ||
1411 | case R_JR: | |
a72d6b4e CG |
1412 | if (fixP->fx_addsy) |
1413 | { | |
1414 | fixP->fx_no_overflow = 1; | |
1415 | fixP->fx_done = 0; | |
1416 | } | |
1417 | else | |
1418 | { | |
f87a1e0c CG |
1419 | if (val & 1) |
1420 | as_bad_where (fixP->fx_file, fixP->fx_line, | |
1421 | _("cannot branch to odd address")); | |
1422 | val /= 2; | |
1423 | if (val > 127 || val < -128) | |
befd69ef CG |
1424 | as_bad_where (fixP->fx_file, fixP->fx_line, |
1425 | _("relative jump out of range")); | |
f87a1e0c CG |
1426 | *buf++ = val; |
1427 | fixP->fx_no_overflow = 1; | |
a72d6b4e CG |
1428 | fixP->fx_done = 1; |
1429 | } | |
252b5132 RH |
1430 | break; |
1431 | ||
1432 | case R_DISP7: | |
a72d6b4e CG |
1433 | if (fixP->fx_addsy) |
1434 | { | |
1435 | fixP->fx_no_overflow = 1; | |
1436 | fixP->fx_done = 0; | |
1437 | } | |
1438 | else | |
1439 | { | |
d5bf5799 | 1440 | if (val & 1) |
f87a1e0c CG |
1441 | as_bad_where (fixP->fx_file, fixP->fx_line, |
1442 | _("cannot branch to odd address")); | |
d5bf5799 | 1443 | val /= 2; |
a72d6b4e | 1444 | if (val > 0 || val < -127) |
f87a1e0c CG |
1445 | as_bad_where (fixP->fx_file, fixP->fx_line, |
1446 | _("relative jump out of range")); | |
a72d6b4e | 1447 | *buf = (*buf & 0x80) | (-val & 0x7f); |
d5bf5799 | 1448 | fixP->fx_no_overflow = 1; |
a72d6b4e CG |
1449 | fixP->fx_done = 1; |
1450 | } | |
7f31df7c | 1451 | break; |
252b5132 | 1452 | |
7f31df7c | 1453 | case R_CALLR: |
a72d6b4e CG |
1454 | if (fixP->fx_addsy) |
1455 | { | |
1456 | fixP->fx_no_overflow = 1; | |
1457 | fixP->fx_done = 0; | |
1458 | } | |
1459 | else | |
1460 | { | |
1461 | if (val & 1) | |
f87a1e0c CG |
1462 | as_bad_where (fixP->fx_file, fixP->fx_line, |
1463 | _("cannot branch to odd address")); | |
a72d6b4e | 1464 | if (val > 4096 || val < -4095) |
f87a1e0c CG |
1465 | as_bad_where (fixP->fx_file, fixP->fx_line, |
1466 | _("relative call out of range")); | |
a72d6b4e | 1467 | val = -val / 2; |
d5bf5799 CG |
1468 | *buf = (*buf & 0xf0) | ((val >> 8) & 0xf); |
1469 | buf++; | |
1470 | *buf++ = val & 0xff; | |
a72d6b4e CG |
1471 | fixP->fx_no_overflow = 1; |
1472 | fixP->fx_done = 1; | |
1473 | } | |
252b5132 RH |
1474 | break; |
1475 | ||
1476 | case R_IMM8: | |
7f31df7c | 1477 | *buf++ = val; |
252b5132 | 1478 | break; |
7f31df7c | 1479 | |
252b5132 RH |
1480 | case R_IMM16: |
1481 | *buf++ = (val >> 8); | |
1482 | *buf++ = val; | |
1483 | break; | |
7f31df7c | 1484 | |
252b5132 RH |
1485 | case R_IMM32: |
1486 | *buf++ = (val >> 24); | |
1487 | *buf++ = (val >> 16); | |
1488 | *buf++ = (val >> 8); | |
1489 | *buf++ = val; | |
1490 | break; | |
7f31df7c CG |
1491 | |
1492 | case R_REL16: | |
1493 | val = val - fixP->fx_frag->fr_address + fixP->fx_where - fixP->fx_size; | |
1494 | if (val > 32767 || val < -32768) | |
f87a1e0c CG |
1495 | as_bad_where (fixP->fx_file, fixP->fx_line, |
1496 | _("relative address out of range")); | |
7f31df7c CG |
1497 | *buf++ = (val >> 8); |
1498 | *buf++ = val; | |
1499 | fixP->fx_no_overflow = 1; | |
1500 | break; | |
1501 | ||
252b5132 RH |
1502 | case 0: |
1503 | md_number_to_chars (buf, val, fixP->fx_size); | |
1504 | break; | |
1505 | ||
1506 | default: | |
55cf6793 | 1507 | printf(_("md_apply_fix: unknown r_type 0x%x\n"), fixP->fx_r_type); |
252b5132 | 1508 | abort (); |
252b5132 | 1509 | } |
94f592af NC |
1510 | |
1511 | if (fixP->fx_addsy == NULL && fixP->fx_pcrel == 0) | |
1512 | fixP->fx_done = 1; | |
252b5132 RH |
1513 | } |
1514 | ||
1515 | int | |
464800ca CG |
1516 | md_estimate_size_before_relax (fragS *fragP ATTRIBUTE_UNUSED, |
1517 | segT segment_type ATTRIBUTE_UNUSED) | |
252b5132 | 1518 | { |
7f31df7c | 1519 | printf (_("call to md_estimate_size_before_relax\n")); |
252b5132 RH |
1520 | abort (); |
1521 | } | |
1522 | ||
e0c6ed95 | 1523 | /* Put number into target byte order. */ |
252b5132 RH |
1524 | |
1525 | void | |
464800ca | 1526 | md_number_to_chars (char *ptr, valueT use, int nbytes) |
252b5132 RH |
1527 | { |
1528 | number_to_chars_bigendian (ptr, use, nbytes); | |
1529 | } | |
e0c6ed95 | 1530 | |
a72d6b4e CG |
1531 | /* On the Z8000, a PC-relative offset is relative to the address of the |
1532 | instruction plus its size. */ | |
252b5132 | 1533 | long |
464800ca | 1534 | md_pcrel_from (fixS *fixP) |
252b5132 | 1535 | { |
a72d6b4e | 1536 | return fixP->fx_size + fixP->fx_where + fixP->fx_frag->fr_address; |
252b5132 RH |
1537 | } |
1538 | ||
1539 | void | |
464800ca | 1540 | tc_coff_symbol_emit_hook (symbolS *s ATTRIBUTE_UNUSED) |
252b5132 RH |
1541 | { |
1542 | } |