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1 | /* ia64.h -- Header file for ia64 opcode table |
2 | Copyright (C) 1998, 1999 David Mosberger-Tang <davidm@hpl.hp.com> | |
3 | ||
4 | See the file HP-COPYRIGHT for additional information. */ | |
5 | ||
6 | #ifndef opcode_ia64_h | |
7 | #define opcode_ia64_h | |
8 | ||
9 | #include <sys/types.h> | |
10 | ||
11 | #include <bfd.h> | |
12 | ||
13 | ||
14 | typedef BFD_HOST_U_64_BIT ia64_insn; | |
15 | ||
16 | enum ia64_insn_type | |
17 | { | |
18 | IA64_TYPE_NIL = 0, /* illegal type */ | |
19 | IA64_TYPE_A, /* integer alu (I- or M-unit) */ | |
20 | IA64_TYPE_I, /* non-alu integer (I-unit) */ | |
21 | IA64_TYPE_M, /* memory (M-unit) */ | |
22 | IA64_TYPE_B, /* branch (B-unit) */ | |
23 | IA64_TYPE_F, /* floating-point (F-unit) */ | |
24 | IA64_TYPE_X, /* long encoding (X-unit) */ | |
25 | IA64_TYPE_DYN, /* Dynamic opcode */ | |
26 | IA64_NUM_TYPES | |
27 | }; | |
28 | ||
29 | enum ia64_unit | |
30 | { | |
31 | IA64_UNIT_NIL = 0, /* illegal unit */ | |
32 | IA64_UNIT_I, /* integer unit */ | |
33 | IA64_UNIT_M, /* memory unit */ | |
34 | IA64_UNIT_B, /* branching unit */ | |
35 | IA64_UNIT_F, /* floating-point unit */ | |
36 | IA64_UNIT_L, /* long "unit" */ | |
37 | IA64_UNIT_X, /* may be integer or branch unit */ | |
38 | IA64_NUM_UNITS | |
39 | }; | |
40 | ||
41 | /* Changes to this enumeration must be propagated to the operand table in | |
42 | bfd/cpu-ia64-opc.c | |
43 | */ | |
44 | enum ia64_opnd | |
45 | { | |
46 | IA64_OPND_NIL, /* no operand---MUST BE FIRST!*/ | |
47 | ||
48 | /* constants */ | |
49 | IA64_OPND_AR_CCV, /* application register ccv (ar.ccv) */ | |
50 | IA64_OPND_AR_PFS, /* application register pfs (ar.pfs) */ | |
51 | IA64_OPND_C1, /* the constant 1 */ | |
52 | IA64_OPND_C8, /* the constant 8 */ | |
53 | IA64_OPND_C16, /* the constant 16 */ | |
54 | IA64_OPND_GR0, /* gr0 */ | |
55 | IA64_OPND_IP, /* instruction pointer (ip) */ | |
56 | IA64_OPND_PR, /* predicate register (pr) */ | |
57 | IA64_OPND_PR_ROT, /* rotating predicate register (pr.rot) */ | |
58 | IA64_OPND_PSR, /* processor status register (psr) */ | |
59 | IA64_OPND_PSR_L, /* processor status register L (psr.l) */ | |
60 | IA64_OPND_PSR_UM, /* processor status register UM (psr.um) */ | |
61 | ||
62 | /* register operands: */ | |
63 | IA64_OPND_AR3, /* third application register # (bits 20-26) */ | |
64 | IA64_OPND_B1, /* branch register # (bits 6-8) */ | |
65 | IA64_OPND_B2, /* branch register # (bits 13-15) */ | |
66 | IA64_OPND_CR3, /* third control register # (bits 20-26) */ | |
67 | IA64_OPND_F1, /* first floating-point register # */ | |
68 | IA64_OPND_F2, /* second floating-point register # */ | |
69 | IA64_OPND_F3, /* third floating-point register # */ | |
70 | IA64_OPND_F4, /* fourth floating-point register # */ | |
71 | IA64_OPND_P1, /* first predicate # */ | |
72 | IA64_OPND_P2, /* second predicate # */ | |
73 | IA64_OPND_R1, /* first register # */ | |
74 | IA64_OPND_R2, /* second register # */ | |
75 | IA64_OPND_R3, /* third register # */ | |
76 | IA64_OPND_R3_2, /* third register # (limited to gr0-gr3) */ | |
77 | ||
78 | /* indirect operands: */ | |
79 | IA64_OPND_CPUID_R3, /* cpuid[reg] */ | |
80 | IA64_OPND_DBR_R3, /* dbr[reg] */ | |
81 | IA64_OPND_DTR_R3, /* dtr[reg] */ | |
82 | IA64_OPND_ITR_R3, /* itr[reg] */ | |
83 | IA64_OPND_IBR_R3, /* ibr[reg] */ | |
84 | IA64_OPND_MR3, /* memory at addr of third register # */ | |
85 | IA64_OPND_MSR_R3, /* msr[reg] */ | |
86 | IA64_OPND_PKR_R3, /* pkr[reg] */ | |
87 | IA64_OPND_PMC_R3, /* pmc[reg] */ | |
88 | IA64_OPND_PMD_R3, /* pmd[reg] */ | |
89 | IA64_OPND_RR_R3, /* rr[reg] */ | |
90 | ||
91 | /* immediate operands: */ | |
92 | IA64_OPND_CCNT5, /* 5-bit count (31 - bits 20-24) */ | |
93 | IA64_OPND_CNT2a, /* 2-bit count (1 + bits 27-28) */ | |
94 | IA64_OPND_CNT2b, /* 2-bit count (bits 27-28): 1, 2, 3 */ | |
95 | IA64_OPND_CNT2c, /* 2-bit count (bits 30-31): 0, 7, 15, or 16 */ | |
96 | IA64_OPND_CNT5, /* 5-bit count (bits 14-18) */ | |
97 | IA64_OPND_CNT6, /* 6-bit count (bits 27-32) */ | |
98 | IA64_OPND_CPOS6a, /* 6-bit count (63 - bits 20-25) */ | |
99 | IA64_OPND_CPOS6b, /* 6-bit count (63 - bits 14-19) */ | |
100 | IA64_OPND_CPOS6c, /* 6-bit count (63 - bits 31-36) */ | |
101 | IA64_OPND_IMM1, /* signed 1-bit immediate (bit 36) */ | |
102 | IA64_OPND_IMMU2, /* unsigned 2-bit immediate (bits 13-14) */ | |
103 | IA64_OPND_IMMU7a, /* unsigned 7-bit immediate (bits 13-19) */ | |
104 | IA64_OPND_IMMU7b, /* unsigned 7-bit immediate (bits 20-26) */ | |
105 | IA64_OPND_SOF, /* 8-bit stack frame size */ | |
106 | IA64_OPND_SOL, /* 8-bit size of locals */ | |
107 | IA64_OPND_SOR, /* 6-bit number of rotating registers (scaled by 8) */ | |
108 | IA64_OPND_IMM8, /* signed 8-bit immediate (bits 13-19 & 36) */ | |
109 | IA64_OPND_IMM8U4, /* cmp4*u signed 8-bit immediate (bits 13-19 & 36) */ | |
110 | IA64_OPND_IMM8M1, /* signed 8-bit immediate -1 (bits 13-19 & 36) */ | |
111 | IA64_OPND_IMM8M1U4, /* cmp4*u signed 8-bit immediate -1 (bits 13-19 & 36)*/ | |
112 | IA64_OPND_IMM8M1U8, /* cmp*u signed 8-bit immediate -1 (bits 13-19 & 36) */ | |
113 | IA64_OPND_IMMU9, /* unsigned 9-bit immediate (bits 33-34, 20-26) */ | |
114 | IA64_OPND_IMM9a, /* signed 9-bit immediate (bits 6-12, 27, 36) */ | |
115 | IA64_OPND_IMM9b, /* signed 9-bit immediate (bits 13-19, 27, 36) */ | |
116 | IA64_OPND_IMM14, /* signed 14-bit immediate (bits 13-19, 27-32, 36) */ | |
117 | IA64_OPND_IMM17, /* signed 17-bit immediate (2*bits 6-12, 24-31, 36) */ | |
118 | IA64_OPND_IMMU21, /* unsigned 21-bit immediate (bits 6-25, 36) */ | |
119 | IA64_OPND_IMM22, /* signed 22-bit immediate (bits 13-19, 22-36) */ | |
120 | IA64_OPND_IMMU24, /* unsigned 24-bit immediate (bits 6-26, 31-32, 36) */ | |
121 | IA64_OPND_IMM44, /* signed 44-bit immediate (2^16*bits 6-32, 36) */ | |
122 | IA64_OPND_IMMU62, /* unsigned 62-bit immediate */ | |
123 | IA64_OPND_IMMU64, /* unsigned 64-bit immediate (lotsa bits...) */ | |
124 | IA64_OPND_INC3, /* signed 3-bit (bits 13-15): +/-1, 4, 8, 16 */ | |
125 | IA64_OPND_LEN4, /* 4-bit count (bits 27-30 + 1) */ | |
126 | IA64_OPND_LEN6, /* 6-bit count (bits 27-32 + 1) */ | |
127 | IA64_OPND_MBTYPE4, /* 4-bit mux type (bits 20-23) */ | |
128 | IA64_OPND_MHTYPE8, /* 8-bit mux type (bits 20-27) */ | |
129 | IA64_OPND_POS6, /* 6-bit count (bits 14-19) */ | |
130 | IA64_OPND_TAG13, /* signed 13-bit tag (ip + 16*bits 6-12, 33-34) */ | |
131 | IA64_OPND_TAG13b, /* signed 13-bit tag (ip + 16*bits 24-32) */ | |
132 | IA64_OPND_TGT25, /* signed 25-bit (ip + 16*bits 6-25, 36) */ | |
133 | IA64_OPND_TGT25b, /* signed 25-bit (ip + 16*bits 6-12, 20-32, 36) */ | |
134 | IA64_OPND_TGT25c, /* signed 25-bit (ip + 16*bits 13-32, 36) */ | |
135 | IA64_OPND_TGT64, /* 64-bit (ip + 16*bits 13-32, 36, 2-40(L)) */ | |
136 | ||
137 | IA64_OPND_COUNT /* # of operand types (MUST BE LAST!) */ | |
138 | }; | |
139 | ||
140 | enum ia64_dependency_mode | |
141 | { | |
142 | IA64_DV_RAW, | |
143 | IA64_DV_WAW, | |
144 | IA64_DV_WAR, | |
145 | }; | |
146 | ||
147 | enum ia64_dependency_semantics | |
148 | { | |
149 | IA64_DVS_NONE, | |
150 | IA64_DVS_IMPLIED, | |
151 | IA64_DVS_IMPLIEDF, | |
152 | IA64_DVS_DATA, | |
153 | IA64_DVS_INSTR, | |
154 | IA64_DVS_SPECIFIC, | |
139368c9 | 155 | IA64_DVS_STOP, |
800eeca4 JW |
156 | IA64_DVS_OTHER, |
157 | }; | |
158 | ||
159 | enum ia64_resource_specifier | |
160 | { | |
161 | IA64_RS_ANY, | |
162 | IA64_RS_AR_K, | |
163 | IA64_RS_AR_UNAT, | |
164 | IA64_RS_AR, /* 8-15, 20, 22-23, 31, 33-35, 37-39, 41-43, 45-47, 67-111 */ | |
165 | IA64_RS_ARb, /* 48-63, 112-127 */ | |
166 | IA64_RS_BR, | |
167 | IA64_RS_CFM, | |
168 | IA64_RS_CPUID, | |
169 | IA64_RS_CR_IRR, | |
170 | IA64_RS_CR_LRR, | |
171 | IA64_RS_CR, /* 3-7,10-15,18,26-63,75-79,82-127 */ | |
172 | IA64_RS_DBR, | |
173 | IA64_RS_FR, | |
174 | IA64_RS_FRb, | |
175 | IA64_RS_GR0, | |
176 | IA64_RS_GR, | |
177 | IA64_RS_IBR, | |
178 | IA64_RS_INSERVICE, /* CR[EOI] or CR[IVR] */ | |
179 | IA64_RS_MSR, | |
180 | IA64_RS_PKR, | |
181 | IA64_RS_PMC, | |
182 | IA64_RS_PMD, | |
139368c9 JW |
183 | IA64_RS_PR, /* non-rotating, 1-15 */ |
184 | IA64_RS_PRr, /* rotating, 16-62 */ | |
800eeca4 JW |
185 | IA64_RS_PR63, |
186 | IA64_RS_RR, | |
187 | ||
188 | IA64_RS_ARX, /* ARs not in RS_AR or RS_ARb */ | |
189 | IA64_RS_CRX, /* CRs not in RS_CR */ | |
190 | IA64_RS_PSR, /* PSR bits */ | |
191 | IA64_RS_RSE, /* implementation-specific RSE resources */ | |
192 | IA64_RS_AR_FPSR, | |
193 | }; | |
194 | ||
195 | enum ia64_rse_resource | |
196 | { | |
197 | IA64_RSE_N_STACKED_PHYS, | |
198 | IA64_RSE_BOF, | |
199 | IA64_RSE_STORE_REG, | |
200 | IA64_RSE_LOAD_REG, | |
201 | IA64_RSE_BSPLOAD, | |
202 | IA64_RSE_RNATBITINDEX, | |
203 | IA64_RSE_CFLE, | |
204 | IA64_RSE_NDIRTY, | |
205 | }; | |
206 | ||
207 | /* Information about a given resource dependency */ | |
208 | struct ia64_dependency | |
209 | { | |
210 | /* Name of the resource */ | |
211 | const char *name; | |
212 | /* Does this dependency need further specification? */ | |
213 | enum ia64_resource_specifier specifier; | |
214 | /* Mode of dependency */ | |
215 | enum ia64_dependency_mode mode; | |
216 | /* Dependency semantics */ | |
217 | enum ia64_dependency_semantics semantics; | |
218 | /* Register index, if applicable (distinguishes AR, CR, and PSR deps) */ | |
219 | #define REG_NONE (-1) | |
220 | int regindex; | |
221 | /* Special info on semantics */ | |
222 | const char *info; | |
223 | }; | |
224 | ||
225 | /* Two arrays of indexes into the ia64_dependency table. | |
226 | chks are dependencies to check for conflicts when an opcode is | |
227 | encountered; regs are dependencies to register (mark as used) when an | |
228 | opcode is used. chks correspond to readers (RAW) or writers (WAW or | |
229 | WAR) of a resource, while regs correspond to writers (RAW or WAW) and | |
230 | readers (WAR) of a resource. */ | |
231 | struct ia64_opcode_dependency | |
232 | { | |
233 | int nchks; | |
234 | const unsigned short *chks; | |
235 | int nregs; | |
236 | const unsigned short *regs; | |
237 | }; | |
238 | ||
239 | /* encode/extract the note/index for a dependency */ | |
240 | #define RDEP(N,X) (((N)<<11)|(X)) | |
241 | #define NOTE(X) (((X)>>11)&0x1F) | |
242 | #define DEP(X) ((X)&0x7FF) | |
243 | ||
244 | /* A template descriptor describes the execution units that are active | |
245 | for each of the three slots. It also specifies the location of | |
246 | instruction group boundaries that may be present between two slots. */ | |
247 | struct ia64_templ_desc | |
248 | { | |
249 | int group_boundary; /* 0=no boundary, 1=between slot 0 & 1, etc. */ | |
250 | enum ia64_unit exec_unit[3]; | |
251 | const char *name; | |
252 | }; | |
253 | ||
254 | /* The opcode table is an array of struct ia64_opcode. */ | |
255 | ||
256 | struct ia64_opcode | |
257 | { | |
258 | /* The opcode name. */ | |
259 | const char *name; | |
260 | ||
261 | /* The type of the instruction: */ | |
262 | enum ia64_insn_type type; | |
263 | ||
264 | /* Number of output operands: */ | |
265 | int num_outputs; | |
266 | ||
267 | /* The opcode itself. Those bits which will be filled in with | |
268 | operands are zeroes. */ | |
269 | ia64_insn opcode; | |
270 | ||
271 | /* The opcode mask. This is used by the disassembler. This is a | |
272 | mask containing ones indicating those bits which must match the | |
273 | opcode field, and zeroes indicating those bits which need not | |
274 | match (and are presumably filled in by operands). */ | |
275 | ia64_insn mask; | |
276 | ||
277 | /* An array of operand codes. Each code is an index into the | |
278 | operand table. They appear in the order which the operands must | |
279 | appear in assembly code, and are terminated by a zero. */ | |
280 | enum ia64_opnd operands[5]; | |
281 | ||
282 | /* One bit flags for the opcode. These are primarily used to | |
283 | indicate specific processors and environments support the | |
284 | instructions. The defined values are listed below. */ | |
285 | unsigned int flags; | |
286 | ||
287 | /* Used by ia64_find_next_opcode (). */ | |
288 | short ent_index; | |
289 | ||
290 | /* Opcode dependencies. */ | |
291 | const struct ia64_opcode_dependency *dependencies; | |
292 | }; | |
293 | ||
294 | /* Values defined for the flags field of a struct ia64_opcode. */ | |
295 | ||
296 | #define IA64_OPCODE_FIRST (1<<0) /* must be first in an insn group */ | |
297 | #define IA64_OPCODE_X_IN_MLX (1<<1) /* insn is allowed in X slot of MLX */ | |
298 | #define IA64_OPCODE_LAST (1<<2) /* must be last in an insn group */ | |
299 | #define IA64_OPCODE_PRIV (1<<3) /* privileged instruct */ | |
300 | #define IA64_OPCODE_SLOT2 (1<<4) /* insn allowed in slot 2 only */ | |
301 | #define IA64_OPCODE_NO_PRED (1<<5) /* insn cannot be predicated */ | |
302 | #define IA64_OPCODE_PSEUDO (1<<6) /* insn is a pseudo-op */ | |
303 | #define IA64_OPCODE_F2_EQ_F3 (1<<7) /* constraint: F2 == F3 */ | |
304 | #define IA64_OPCODE_LEN_EQ_64MCNT (1<<8) /* constraint: LEN == 64-CNT */ | |
50b81f19 JW |
305 | #define IA64_OPCODE_MOD_RRBS (1<<9) /* modifies all rrbs in CFM */ |
306 | #define IA64_OPCODE_POSTINC (1<<10) /* postincrement MR3 operand */ | |
800eeca4 JW |
307 | |
308 | /* A macro to extract the major opcode from an instruction. */ | |
309 | #define IA64_OP(i) (((i) >> 37) & 0xf) | |
310 | ||
311 | enum ia64_operand_class | |
312 | { | |
313 | IA64_OPND_CLASS_CST, /* constant */ | |
314 | IA64_OPND_CLASS_REG, /* register */ | |
315 | IA64_OPND_CLASS_IND, /* indirect register */ | |
316 | IA64_OPND_CLASS_ABS, /* absolute value */ | |
317 | IA64_OPND_CLASS_REL, /* IP-relative value */ | |
318 | }; | |
319 | ||
320 | /* The operands table is an array of struct ia64_operand. */ | |
321 | ||
322 | struct ia64_operand | |
323 | { | |
324 | enum ia64_operand_class class; | |
325 | ||
326 | /* Set VALUE as the operand bits for the operand of type SELF in the | |
327 | instruction pointed to by CODE. If an error occurs, *CODE is not | |
328 | modified and the returned string describes the cause of the | |
329 | error. If no error occurs, NULL is returned. */ | |
330 | const char *(*insert) (const struct ia64_operand *self, ia64_insn value, | |
331 | ia64_insn *code); | |
332 | ||
333 | /* Extract the operand bits for an operand of type SELF from | |
334 | instruction CODE store them in *VALUE. If an error occurs, the | |
335 | cause of the error is described by the string returned. If no | |
336 | error occurs, NULL is returned. */ | |
337 | const char *(*extract) (const struct ia64_operand *self, ia64_insn code, | |
338 | ia64_insn *value); | |
339 | ||
340 | /* A string whose meaning depends on the operand class. */ | |
341 | ||
342 | const char *str; | |
343 | ||
344 | struct bit_field | |
345 | { | |
346 | /* The number of bits in the operand. */ | |
347 | int bits; | |
348 | ||
349 | /* How far the operand is left shifted in the instruction. */ | |
350 | int shift; | |
351 | } | |
352 | field[4]; /* no operand has more than this many bit-fields */ | |
353 | ||
354 | unsigned int flags; | |
355 | ||
356 | const char *desc; /* brief description */ | |
357 | }; | |
358 | ||
359 | /* Values defined for the flags field of a struct ia64_operand. */ | |
360 | ||
361 | /* Disassemble as signed decimal (instead of hex): */ | |
362 | #define IA64_OPND_FLAG_DECIMAL_SIGNED (1<<0) | |
363 | /* Disassemble as unsigned decimal (instead of hex): */ | |
364 | #define IA64_OPND_FLAG_DECIMAL_UNSIGNED (1<<1) | |
365 | ||
366 | extern const struct ia64_templ_desc ia64_templ_desc[16]; | |
367 | ||
368 | /* The tables are sorted by major opcode number and are otherwise in | |
369 | the order in which the disassembler should consider instructions. */ | |
370 | extern struct ia64_opcode ia64_opcodes_a[]; | |
371 | extern struct ia64_opcode ia64_opcodes_i[]; | |
372 | extern struct ia64_opcode ia64_opcodes_m[]; | |
373 | extern struct ia64_opcode ia64_opcodes_b[]; | |
374 | extern struct ia64_opcode ia64_opcodes_f[]; | |
375 | extern struct ia64_opcode ia64_opcodes_d[]; | |
376 | ||
377 | ||
378 | extern struct ia64_opcode *ia64_find_opcode (const char *name); | |
379 | extern struct ia64_opcode *ia64_find_next_opcode (struct ia64_opcode *ent); | |
380 | ||
381 | extern struct ia64_opcode *ia64_dis_opcode (ia64_insn insn, | |
382 | enum ia64_insn_type type); | |
383 | ||
384 | extern void ia64_free_opcode (struct ia64_opcode *ent); | |
385 | extern const struct ia64_dependency *ia64_find_dependency (int index); | |
386 | ||
387 | /* To avoid circular library dependencies, this array is implemented | |
388 | in bfd/cpu-ia64-opc.c: */ | |
389 | extern const struct ia64_operand elf64_ia64_operands[IA64_OPND_COUNT]; | |
390 | ||
391 | #endif /* opcode_ia64_h */ |