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