1 /* DO NOT EDIT! -*- buffer-read-only: t -*- vi:set ro: */
2 /* Instruction building/extraction support for iq2000. -*- C -*-
4 THIS FILE IS MACHINE GENERATED WITH CGEN: Cpu tools GENerator.
5 - the resultant file is machine generated, cgen-ibld.in isn't
7 Copyright (C) 1996-2020 Free Software Foundation, Inc.
9 This file is part of libopcodes.
11 This library is free software; you can redistribute it and/or modify
12 it under the terms of the GNU General Public License as published by
13 the Free Software Foundation; either version 3, or (at your option)
16 It is distributed in the hope that it will be useful, but WITHOUT
17 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
18 or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public
19 License for more details.
21 You should have received a copy of the GNU General Public License
22 along with this program; if not, write to the Free Software Foundation, Inc.,
23 51 Franklin Street - Fifth Floor, Boston, MA 02110-1301, USA. */
25 /* ??? Eventually more and more of this stuff can go to cpu-independent files.
34 #include "iq2000-desc.h"
35 #include "iq2000-opc.h"
36 #include "cgen/basic-modes.h"
38 #include "safe-ctype.h"
41 #define min(a,b) ((a) < (b) ? (a) : (b))
43 #define max(a,b) ((a) > (b) ? (a) : (b))
45 /* Used by the ifield rtx function. */
46 #define FLD(f) (fields->f)
48 static const char * insert_normal
49 (CGEN_CPU_DESC
, long, unsigned int, unsigned int, unsigned int,
50 unsigned int, unsigned int, unsigned int, CGEN_INSN_BYTES_PTR
);
51 static const char * insert_insn_normal
52 (CGEN_CPU_DESC
, const CGEN_INSN
*,
53 CGEN_FIELDS
*, CGEN_INSN_BYTES_PTR
, bfd_vma
);
54 static int extract_normal
55 (CGEN_CPU_DESC
, CGEN_EXTRACT_INFO
*, CGEN_INSN_INT
,
56 unsigned int, unsigned int, unsigned int, unsigned int,
57 unsigned int, unsigned int, bfd_vma
, long *);
58 static int extract_insn_normal
59 (CGEN_CPU_DESC
, const CGEN_INSN
*, CGEN_EXTRACT_INFO
*,
60 CGEN_INSN_INT
, CGEN_FIELDS
*, bfd_vma
);
62 static void put_insn_int_value
63 (CGEN_CPU_DESC
, CGEN_INSN_BYTES_PTR
, int, int, CGEN_INSN_INT
);
66 static CGEN_INLINE
void insert_1
67 (CGEN_CPU_DESC
, unsigned long, int, int, int, unsigned char *);
68 static CGEN_INLINE
int fill_cache
69 (CGEN_CPU_DESC
, CGEN_EXTRACT_INFO
*, int, int, bfd_vma
);
70 static CGEN_INLINE
long extract_1
71 (CGEN_CPU_DESC
, CGEN_EXTRACT_INFO
*, int, int, int, unsigned char *, bfd_vma
);
74 /* Operand insertion. */
78 /* Subroutine of insert_normal. */
80 static CGEN_INLINE
void
81 insert_1 (CGEN_CPU_DESC cd
,
91 x
= cgen_get_insn_value (cd
, bufp
, word_length
);
93 /* Written this way to avoid undefined behaviour. */
94 mask
= (((1L << (length
- 1)) - 1) << 1) | 1;
96 shift
= (start
+ 1) - length
;
98 shift
= (word_length
- (start
+ length
));
99 x
= (x
& ~(mask
<< shift
)) | ((value
& mask
) << shift
);
101 cgen_put_insn_value (cd
, bufp
, word_length
, (bfd_vma
) x
);
104 #endif /* ! CGEN_INT_INSN_P */
106 /* Default insertion routine.
108 ATTRS is a mask of the boolean attributes.
109 WORD_OFFSET is the offset in bits from the start of the insn of the value.
110 WORD_LENGTH is the length of the word in bits in which the value resides.
111 START is the starting bit number in the word, architecture origin.
112 LENGTH is the length of VALUE in bits.
113 TOTAL_LENGTH is the total length of the insn in bits.
115 The result is an error message or NULL if success. */
117 /* ??? This duplicates functionality with bfd's howto table and
118 bfd_install_relocation. */
119 /* ??? This doesn't handle bfd_vma's. Create another function when
123 insert_normal (CGEN_CPU_DESC cd
,
126 unsigned int word_offset
,
129 unsigned int word_length
,
130 unsigned int total_length
,
131 CGEN_INSN_BYTES_PTR buffer
)
133 static char errbuf
[100];
134 /* Written this way to avoid undefined behaviour. */
135 unsigned long mask
= (((1L << (length
- 1)) - 1) << 1) | 1;
137 /* If LENGTH is zero, this operand doesn't contribute to the value. */
141 if (word_length
> 8 * sizeof (CGEN_INSN_INT
))
144 /* For architectures with insns smaller than the base-insn-bitsize,
145 word_length may be too big. */
146 if (cd
->min_insn_bitsize
< cd
->base_insn_bitsize
)
149 && word_length
> total_length
)
150 word_length
= total_length
;
153 /* Ensure VALUE will fit. */
154 if (CGEN_BOOL_ATTR (attrs
, CGEN_IFLD_SIGN_OPT
))
156 long minval
= - (1L << (length
- 1));
157 unsigned long maxval
= mask
;
159 if ((value
> 0 && (unsigned long) value
> maxval
)
162 /* xgettext:c-format */
164 _("operand out of range (%ld not between %ld and %lu)"),
165 value
, minval
, maxval
);
169 else if (! CGEN_BOOL_ATTR (attrs
, CGEN_IFLD_SIGNED
))
171 unsigned long maxval
= mask
;
172 unsigned long val
= (unsigned long) value
;
174 /* For hosts with a word size > 32 check to see if value has been sign
175 extended beyond 32 bits. If so then ignore these higher sign bits
176 as the user is attempting to store a 32-bit signed value into an
177 unsigned 32-bit field which is allowed. */
178 if (sizeof (unsigned long) > 4 && ((value
>> 32) == -1))
183 /* xgettext:c-format */
185 _("operand out of range (0x%lx not between 0 and 0x%lx)"),
192 if (! cgen_signed_overflow_ok_p (cd
))
194 long minval
= - (1L << (length
- 1));
195 long maxval
= (1L << (length
- 1)) - 1;
197 if (value
< minval
|| value
> maxval
)
200 /* xgettext:c-format */
201 (errbuf
, _("operand out of range (%ld not between %ld and %ld)"),
202 value
, minval
, maxval
);
211 int shift_within_word
, shift_to_word
, shift
;
213 /* How to shift the value to BIT0 of the word. */
214 shift_to_word
= total_length
- (word_offset
+ word_length
);
216 /* How to shift the value to the field within the word. */
217 if (CGEN_INSN_LSB0_P
)
218 shift_within_word
= start
+ 1 - length
;
220 shift_within_word
= word_length
- start
- length
;
222 /* The total SHIFT, then mask in the value. */
223 shift
= shift_to_word
+ shift_within_word
;
224 *buffer
= (*buffer
& ~(mask
<< shift
)) | ((value
& mask
) << shift
);
227 #else /* ! CGEN_INT_INSN_P */
230 unsigned char *bufp
= (unsigned char *) buffer
+ word_offset
/ 8;
232 insert_1 (cd
, value
, start
, length
, word_length
, bufp
);
235 #endif /* ! CGEN_INT_INSN_P */
240 /* Default insn builder (insert handler).
241 The instruction is recorded in CGEN_INT_INSN_P byte order (meaning
242 that if CGEN_INSN_BYTES_PTR is an int * and thus, the value is
243 recorded in host byte order, otherwise BUFFER is an array of bytes
244 and the value is recorded in target byte order).
245 The result is an error message or NULL if success. */
248 insert_insn_normal (CGEN_CPU_DESC cd
,
249 const CGEN_INSN
* insn
,
250 CGEN_FIELDS
* fields
,
251 CGEN_INSN_BYTES_PTR buffer
,
254 const CGEN_SYNTAX
*syntax
= CGEN_INSN_SYNTAX (insn
);
256 const CGEN_SYNTAX_CHAR_TYPE
* syn
;
258 CGEN_INIT_INSERT (cd
);
259 value
= CGEN_INSN_BASE_VALUE (insn
);
261 /* If we're recording insns as numbers (rather than a string of bytes),
262 target byte order handling is deferred until later. */
266 put_insn_int_value (cd
, buffer
, cd
->base_insn_bitsize
,
267 CGEN_FIELDS_BITSIZE (fields
), value
);
271 cgen_put_insn_value (cd
, buffer
, min ((unsigned) cd
->base_insn_bitsize
,
272 (unsigned) CGEN_FIELDS_BITSIZE (fields
)),
275 #endif /* ! CGEN_INT_INSN_P */
277 /* ??? It would be better to scan the format's fields.
278 Still need to be able to insert a value based on the operand though;
279 e.g. storing a branch displacement that got resolved later.
280 Needs more thought first. */
282 for (syn
= CGEN_SYNTAX_STRING (syntax
); * syn
; ++ syn
)
286 if (CGEN_SYNTAX_CHAR_P (* syn
))
289 errmsg
= (* cd
->insert_operand
) (cd
, CGEN_SYNTAX_FIELD (*syn
),
299 /* Cover function to store an insn value into an integral insn. Must go here
300 because it needs <prefix>-desc.h for CGEN_INT_INSN_P. */
303 put_insn_int_value (CGEN_CPU_DESC cd ATTRIBUTE_UNUSED
,
304 CGEN_INSN_BYTES_PTR buf
,
309 /* For architectures with insns smaller than the base-insn-bitsize,
310 length may be too big. */
311 if (length
> insn_length
)
315 int shift
= insn_length
- length
;
316 /* Written this way to avoid undefined behaviour. */
317 CGEN_INSN_INT mask
= (((1L << (length
- 1)) - 1) << 1) | 1;
319 *buf
= (*buf
& ~(mask
<< shift
)) | ((value
& mask
) << shift
);
324 /* Operand extraction. */
326 #if ! CGEN_INT_INSN_P
328 /* Subroutine of extract_normal.
329 Ensure sufficient bytes are cached in EX_INFO.
330 OFFSET is the offset in bytes from the start of the insn of the value.
331 BYTES is the length of the needed value.
332 Returns 1 for success, 0 for failure. */
334 static CGEN_INLINE
int
335 fill_cache (CGEN_CPU_DESC cd ATTRIBUTE_UNUSED
,
336 CGEN_EXTRACT_INFO
*ex_info
,
341 /* It's doubtful that the middle part has already been fetched so
342 we don't optimize that case. kiss. */
344 disassemble_info
*info
= (disassemble_info
*) ex_info
->dis_info
;
346 /* First do a quick check. */
347 mask
= (1 << bytes
) - 1;
348 if (((ex_info
->valid
>> offset
) & mask
) == mask
)
351 /* Search for the first byte we need to read. */
352 for (mask
= 1 << offset
; bytes
> 0; --bytes
, ++offset
, mask
<<= 1)
353 if (! (mask
& ex_info
->valid
))
361 status
= (*info
->read_memory_func
)
362 (pc
, ex_info
->insn_bytes
+ offset
, bytes
, info
);
366 (*info
->memory_error_func
) (status
, pc
, info
);
370 ex_info
->valid
|= ((1 << bytes
) - 1) << offset
;
376 /* Subroutine of extract_normal. */
378 static CGEN_INLINE
long
379 extract_1 (CGEN_CPU_DESC cd
,
380 CGEN_EXTRACT_INFO
*ex_info ATTRIBUTE_UNUSED
,
385 bfd_vma pc ATTRIBUTE_UNUSED
)
390 x
= cgen_get_insn_value (cd
, bufp
, word_length
);
392 if (CGEN_INSN_LSB0_P
)
393 shift
= (start
+ 1) - length
;
395 shift
= (word_length
- (start
+ length
));
399 #endif /* ! CGEN_INT_INSN_P */
401 /* Default extraction routine.
403 INSN_VALUE is the first base_insn_bitsize bits of the insn in host order,
404 or sometimes less for cases like the m32r where the base insn size is 32
405 but some insns are 16 bits.
406 ATTRS is a mask of the boolean attributes. We only need `SIGNED',
407 but for generality we take a bitmask of all of them.
408 WORD_OFFSET is the offset in bits from the start of the insn of the value.
409 WORD_LENGTH is the length of the word in bits in which the value resides.
410 START is the starting bit number in the word, architecture origin.
411 LENGTH is the length of VALUE in bits.
412 TOTAL_LENGTH is the total length of the insn in bits.
414 Returns 1 for success, 0 for failure. */
416 /* ??? The return code isn't properly used. wip. */
418 /* ??? This doesn't handle bfd_vma's. Create another function when
422 extract_normal (CGEN_CPU_DESC cd
,
423 #if ! CGEN_INT_INSN_P
424 CGEN_EXTRACT_INFO
*ex_info
,
426 CGEN_EXTRACT_INFO
*ex_info ATTRIBUTE_UNUSED
,
428 CGEN_INSN_INT insn_value
,
430 unsigned int word_offset
,
433 unsigned int word_length
,
434 unsigned int total_length
,
435 #if ! CGEN_INT_INSN_P
438 bfd_vma pc ATTRIBUTE_UNUSED
,
444 /* If LENGTH is zero, this operand doesn't contribute to the value
445 so give it a standard value of zero. */
452 if (word_length
> 8 * sizeof (CGEN_INSN_INT
))
455 /* For architectures with insns smaller than the insn-base-bitsize,
456 word_length may be too big. */
457 if (cd
->min_insn_bitsize
< cd
->base_insn_bitsize
)
459 if (word_offset
+ word_length
> total_length
)
460 word_length
= total_length
- word_offset
;
463 /* Does the value reside in INSN_VALUE, and at the right alignment? */
465 if (CGEN_INT_INSN_P
|| (word_offset
== 0 && word_length
== total_length
))
467 if (CGEN_INSN_LSB0_P
)
468 value
= insn_value
>> ((word_offset
+ start
+ 1) - length
);
470 value
= insn_value
>> (total_length
- ( word_offset
+ start
+ length
));
473 #if ! CGEN_INT_INSN_P
477 unsigned char *bufp
= ex_info
->insn_bytes
+ word_offset
/ 8;
479 if (word_length
> 8 * sizeof (CGEN_INSN_INT
))
482 if (fill_cache (cd
, ex_info
, word_offset
/ 8, word_length
/ 8, pc
) == 0)
488 value
= extract_1 (cd
, ex_info
, start
, length
, word_length
, bufp
, pc
);
491 #endif /* ! CGEN_INT_INSN_P */
493 /* Written this way to avoid undefined behaviour. */
494 mask
= (((1L << (length
- 1)) - 1) << 1) | 1;
498 if (CGEN_BOOL_ATTR (attrs
, CGEN_IFLD_SIGNED
)
499 && (value
& (1L << (length
- 1))))
507 /* Default insn extractor.
509 INSN_VALUE is the first base_insn_bitsize bits, translated to host order.
510 The extracted fields are stored in FIELDS.
511 EX_INFO is used to handle reading variable length insns.
512 Return the length of the insn in bits, or 0 if no match,
513 or -1 if an error occurs fetching data (memory_error_func will have
517 extract_insn_normal (CGEN_CPU_DESC cd
,
518 const CGEN_INSN
*insn
,
519 CGEN_EXTRACT_INFO
*ex_info
,
520 CGEN_INSN_INT insn_value
,
524 const CGEN_SYNTAX
*syntax
= CGEN_INSN_SYNTAX (insn
);
525 const CGEN_SYNTAX_CHAR_TYPE
*syn
;
527 CGEN_FIELDS_BITSIZE (fields
) = CGEN_INSN_BITSIZE (insn
);
529 CGEN_INIT_EXTRACT (cd
);
531 for (syn
= CGEN_SYNTAX_STRING (syntax
); *syn
; ++syn
)
535 if (CGEN_SYNTAX_CHAR_P (*syn
))
538 length
= (* cd
->extract_operand
) (cd
, CGEN_SYNTAX_FIELD (*syn
),
539 ex_info
, insn_value
, fields
, pc
);
544 /* We recognized and successfully extracted this insn. */
545 return CGEN_INSN_BITSIZE (insn
);
548 /* Machine generated code added here. */
550 const char * iq2000_cgen_insert_operand
551 (CGEN_CPU_DESC
, int, CGEN_FIELDS
*, CGEN_INSN_BYTES_PTR
, bfd_vma
);
553 /* Main entry point for operand insertion.
555 This function is basically just a big switch statement. Earlier versions
556 used tables to look up the function to use, but
557 - if the table contains both assembler and disassembler functions then
558 the disassembler contains much of the assembler and vice-versa,
559 - there's a lot of inlining possibilities as things grow,
560 - using a switch statement avoids the function call overhead.
562 This function could be moved into `parse_insn_normal', but keeping it
563 separate makes clear the interface between `parse_insn_normal' and each of
564 the handlers. It's also needed by GAS to insert operands that couldn't be
565 resolved during parsing. */
568 iq2000_cgen_insert_operand (CGEN_CPU_DESC cd
,
570 CGEN_FIELDS
* fields
,
571 CGEN_INSN_BYTES_PTR buffer
,
572 bfd_vma pc ATTRIBUTE_UNUSED
)
574 const char * errmsg
= NULL
;
575 unsigned int total_length
= CGEN_FIELDS_BITSIZE (fields
);
579 case IQ2000_OPERAND__INDEX
:
580 errmsg
= insert_normal (cd
, fields
->f_index
, 0, 0, 8, 9, 32, total_length
, buffer
);
582 case IQ2000_OPERAND_BASE
:
583 errmsg
= insert_normal (cd
, fields
->f_rs
, 0, 0, 25, 5, 32, total_length
, buffer
);
585 case IQ2000_OPERAND_BASEOFF
:
586 errmsg
= insert_normal (cd
, fields
->f_imm
, 0, 0, 15, 16, 32, total_length
, buffer
);
588 case IQ2000_OPERAND_BITNUM
:
589 errmsg
= insert_normal (cd
, fields
->f_rt
, 0, 0, 20, 5, 32, total_length
, buffer
);
591 case IQ2000_OPERAND_BYTECOUNT
:
592 errmsg
= insert_normal (cd
, fields
->f_bytecount
, 0, 0, 7, 8, 32, total_length
, buffer
);
594 case IQ2000_OPERAND_CAM_Y
:
595 errmsg
= insert_normal (cd
, fields
->f_cam_y
, 0, 0, 2, 3, 32, total_length
, buffer
);
597 case IQ2000_OPERAND_CAM_Z
:
598 errmsg
= insert_normal (cd
, fields
->f_cam_z
, 0, 0, 5, 3, 32, total_length
, buffer
);
600 case IQ2000_OPERAND_CM_3FUNC
:
601 errmsg
= insert_normal (cd
, fields
->f_cm_3func
, 0, 0, 5, 3, 32, total_length
, buffer
);
603 case IQ2000_OPERAND_CM_3Z
:
604 errmsg
= insert_normal (cd
, fields
->f_cm_3z
, 0, 0, 1, 2, 32, total_length
, buffer
);
606 case IQ2000_OPERAND_CM_4FUNC
:
607 errmsg
= insert_normal (cd
, fields
->f_cm_4func
, 0, 0, 5, 4, 32, total_length
, buffer
);
609 case IQ2000_OPERAND_CM_4Z
:
610 errmsg
= insert_normal (cd
, fields
->f_cm_4z
, 0, 0, 2, 3, 32, total_length
, buffer
);
612 case IQ2000_OPERAND_COUNT
:
613 errmsg
= insert_normal (cd
, fields
->f_count
, 0, 0, 15, 7, 32, total_length
, buffer
);
615 case IQ2000_OPERAND_EXECODE
:
616 errmsg
= insert_normal (cd
, fields
->f_excode
, 0, 0, 25, 20, 32, total_length
, buffer
);
618 case IQ2000_OPERAND_HI16
:
619 errmsg
= insert_normal (cd
, fields
->f_imm
, 0, 0, 15, 16, 32, total_length
, buffer
);
621 case IQ2000_OPERAND_IMM
:
622 errmsg
= insert_normal (cd
, fields
->f_imm
, 0, 0, 15, 16, 32, total_length
, buffer
);
624 case IQ2000_OPERAND_JMPTARG
:
626 long value
= fields
->f_jtarg
;
627 value
= ((USI
) (((value
) & (262143))) >> (2));
628 errmsg
= insert_normal (cd
, value
, 0|(1<<CGEN_IFLD_ABS_ADDR
), 0, 15, 16, 32, total_length
, buffer
);
631 case IQ2000_OPERAND_JMPTARGQ10
:
633 long value
= fields
->f_jtargq10
;
634 value
= ((USI
) (((value
) & (8388607))) >> (2));
635 errmsg
= insert_normal (cd
, value
, 0|(1<<CGEN_IFLD_ABS_ADDR
), 0, 20, 21, 32, total_length
, buffer
);
638 case IQ2000_OPERAND_LO16
:
639 errmsg
= insert_normal (cd
, fields
->f_imm
, 0, 0, 15, 16, 32, total_length
, buffer
);
641 case IQ2000_OPERAND_MASK
:
642 errmsg
= insert_normal (cd
, fields
->f_mask
, 0, 0, 9, 4, 32, total_length
, buffer
);
644 case IQ2000_OPERAND_MASKL
:
645 errmsg
= insert_normal (cd
, fields
->f_maskl
, 0, 0, 4, 5, 32, total_length
, buffer
);
647 case IQ2000_OPERAND_MASKQ10
:
648 errmsg
= insert_normal (cd
, fields
->f_maskq10
, 0, 0, 10, 5, 32, total_length
, buffer
);
650 case IQ2000_OPERAND_MASKR
:
651 errmsg
= insert_normal (cd
, fields
->f_rs
, 0, 0, 25, 5, 32, total_length
, buffer
);
653 case IQ2000_OPERAND_MLO16
:
654 errmsg
= insert_normal (cd
, fields
->f_imm
, 0, 0, 15, 16, 32, total_length
, buffer
);
656 case IQ2000_OPERAND_OFFSET
:
658 long value
= fields
->f_offset
;
659 value
= ((SI
) (((value
) - (pc
))) >> (2));
660 errmsg
= insert_normal (cd
, value
, 0|(1<<CGEN_IFLD_SIGNED
)|(1<<CGEN_IFLD_PCREL_ADDR
), 0, 15, 16, 32, total_length
, buffer
);
663 case IQ2000_OPERAND_RD
:
664 errmsg
= insert_normal (cd
, fields
->f_rd
, 0, 0, 15, 5, 32, total_length
, buffer
);
666 case IQ2000_OPERAND_RD_RS
:
669 FLD (f_rd
) = FLD (f_rd_rs
);
670 FLD (f_rs
) = FLD (f_rd_rs
);
672 errmsg
= insert_normal (cd
, fields
->f_rd
, 0, 0, 15, 5, 32, total_length
, buffer
);
675 errmsg
= insert_normal (cd
, fields
->f_rs
, 0, 0, 25, 5, 32, total_length
, buffer
);
680 case IQ2000_OPERAND_RD_RT
:
683 FLD (f_rd
) = FLD (f_rd_rt
);
684 FLD (f_rt
) = FLD (f_rd_rt
);
686 errmsg
= insert_normal (cd
, fields
->f_rd
, 0, 0, 15, 5, 32, total_length
, buffer
);
689 errmsg
= insert_normal (cd
, fields
->f_rt
, 0, 0, 20, 5, 32, total_length
, buffer
);
694 case IQ2000_OPERAND_RS
:
695 errmsg
= insert_normal (cd
, fields
->f_rs
, 0, 0, 25, 5, 32, total_length
, buffer
);
697 case IQ2000_OPERAND_RT
:
698 errmsg
= insert_normal (cd
, fields
->f_rt
, 0, 0, 20, 5, 32, total_length
, buffer
);
700 case IQ2000_OPERAND_RT_RS
:
703 FLD (f_rt
) = FLD (f_rt_rs
);
704 FLD (f_rs
) = FLD (f_rt_rs
);
706 errmsg
= insert_normal (cd
, fields
->f_rt
, 0, 0, 20, 5, 32, total_length
, buffer
);
709 errmsg
= insert_normal (cd
, fields
->f_rs
, 0, 0, 25, 5, 32, total_length
, buffer
);
714 case IQ2000_OPERAND_SHAMT
:
715 errmsg
= insert_normal (cd
, fields
->f_shamt
, 0, 0, 10, 5, 32, total_length
, buffer
);
719 /* xgettext:c-format */
720 opcodes_error_handler
721 (_("internal error: unrecognized field %d while building insn"),
729 int iq2000_cgen_extract_operand
730 (CGEN_CPU_DESC
, int, CGEN_EXTRACT_INFO
*, CGEN_INSN_INT
, CGEN_FIELDS
*, bfd_vma
);
732 /* Main entry point for operand extraction.
733 The result is <= 0 for error, >0 for success.
734 ??? Actual values aren't well defined right now.
736 This function is basically just a big switch statement. Earlier versions
737 used tables to look up the function to use, but
738 - if the table contains both assembler and disassembler functions then
739 the disassembler contains much of the assembler and vice-versa,
740 - there's a lot of inlining possibilities as things grow,
741 - using a switch statement avoids the function call overhead.
743 This function could be moved into `print_insn_normal', but keeping it
744 separate makes clear the interface between `print_insn_normal' and each of
748 iq2000_cgen_extract_operand (CGEN_CPU_DESC cd
,
750 CGEN_EXTRACT_INFO
*ex_info
,
751 CGEN_INSN_INT insn_value
,
752 CGEN_FIELDS
* fields
,
755 /* Assume success (for those operands that are nops). */
757 unsigned int total_length
= CGEN_FIELDS_BITSIZE (fields
);
761 case IQ2000_OPERAND__INDEX
:
762 length
= extract_normal (cd
, ex_info
, insn_value
, 0, 0, 8, 9, 32, total_length
, pc
, & fields
->f_index
);
764 case IQ2000_OPERAND_BASE
:
765 length
= extract_normal (cd
, ex_info
, insn_value
, 0, 0, 25, 5, 32, total_length
, pc
, & fields
->f_rs
);
767 case IQ2000_OPERAND_BASEOFF
:
768 length
= extract_normal (cd
, ex_info
, insn_value
, 0, 0, 15, 16, 32, total_length
, pc
, & fields
->f_imm
);
770 case IQ2000_OPERAND_BITNUM
:
771 length
= extract_normal (cd
, ex_info
, insn_value
, 0, 0, 20, 5, 32, total_length
, pc
, & fields
->f_rt
);
773 case IQ2000_OPERAND_BYTECOUNT
:
774 length
= extract_normal (cd
, ex_info
, insn_value
, 0, 0, 7, 8, 32, total_length
, pc
, & fields
->f_bytecount
);
776 case IQ2000_OPERAND_CAM_Y
:
777 length
= extract_normal (cd
, ex_info
, insn_value
, 0, 0, 2, 3, 32, total_length
, pc
, & fields
->f_cam_y
);
779 case IQ2000_OPERAND_CAM_Z
:
780 length
= extract_normal (cd
, ex_info
, insn_value
, 0, 0, 5, 3, 32, total_length
, pc
, & fields
->f_cam_z
);
782 case IQ2000_OPERAND_CM_3FUNC
:
783 length
= extract_normal (cd
, ex_info
, insn_value
, 0, 0, 5, 3, 32, total_length
, pc
, & fields
->f_cm_3func
);
785 case IQ2000_OPERAND_CM_3Z
:
786 length
= extract_normal (cd
, ex_info
, insn_value
, 0, 0, 1, 2, 32, total_length
, pc
, & fields
->f_cm_3z
);
788 case IQ2000_OPERAND_CM_4FUNC
:
789 length
= extract_normal (cd
, ex_info
, insn_value
, 0, 0, 5, 4, 32, total_length
, pc
, & fields
->f_cm_4func
);
791 case IQ2000_OPERAND_CM_4Z
:
792 length
= extract_normal (cd
, ex_info
, insn_value
, 0, 0, 2, 3, 32, total_length
, pc
, & fields
->f_cm_4z
);
794 case IQ2000_OPERAND_COUNT
:
795 length
= extract_normal (cd
, ex_info
, insn_value
, 0, 0, 15, 7, 32, total_length
, pc
, & fields
->f_count
);
797 case IQ2000_OPERAND_EXECODE
:
798 length
= extract_normal (cd
, ex_info
, insn_value
, 0, 0, 25, 20, 32, total_length
, pc
, & fields
->f_excode
);
800 case IQ2000_OPERAND_HI16
:
801 length
= extract_normal (cd
, ex_info
, insn_value
, 0, 0, 15, 16, 32, total_length
, pc
, & fields
->f_imm
);
803 case IQ2000_OPERAND_IMM
:
804 length
= extract_normal (cd
, ex_info
, insn_value
, 0, 0, 15, 16, 32, total_length
, pc
, & fields
->f_imm
);
806 case IQ2000_OPERAND_JMPTARG
:
809 length
= extract_normal (cd
, ex_info
, insn_value
, 0|(1<<CGEN_IFLD_ABS_ADDR
), 0, 15, 16, 32, total_length
, pc
, & value
);
810 value
= ((((pc
) & (0xf0000000))) | (((value
) << (2))));
811 fields
->f_jtarg
= value
;
814 case IQ2000_OPERAND_JMPTARGQ10
:
817 length
= extract_normal (cd
, ex_info
, insn_value
, 0|(1<<CGEN_IFLD_ABS_ADDR
), 0, 20, 21, 32, total_length
, pc
, & value
);
818 value
= ((((pc
) & (0xf0000000))) | (((value
) << (2))));
819 fields
->f_jtargq10
= value
;
822 case IQ2000_OPERAND_LO16
:
823 length
= extract_normal (cd
, ex_info
, insn_value
, 0, 0, 15, 16, 32, total_length
, pc
, & fields
->f_imm
);
825 case IQ2000_OPERAND_MASK
:
826 length
= extract_normal (cd
, ex_info
, insn_value
, 0, 0, 9, 4, 32, total_length
, pc
, & fields
->f_mask
);
828 case IQ2000_OPERAND_MASKL
:
829 length
= extract_normal (cd
, ex_info
, insn_value
, 0, 0, 4, 5, 32, total_length
, pc
, & fields
->f_maskl
);
831 case IQ2000_OPERAND_MASKQ10
:
832 length
= extract_normal (cd
, ex_info
, insn_value
, 0, 0, 10, 5, 32, total_length
, pc
, & fields
->f_maskq10
);
834 case IQ2000_OPERAND_MASKR
:
835 length
= extract_normal (cd
, ex_info
, insn_value
, 0, 0, 25, 5, 32, total_length
, pc
, & fields
->f_rs
);
837 case IQ2000_OPERAND_MLO16
:
838 length
= extract_normal (cd
, ex_info
, insn_value
, 0, 0, 15, 16, 32, total_length
, pc
, & fields
->f_imm
);
840 case IQ2000_OPERAND_OFFSET
:
843 length
= extract_normal (cd
, ex_info
, insn_value
, 0|(1<<CGEN_IFLD_SIGNED
)|(1<<CGEN_IFLD_PCREL_ADDR
), 0, 15, 16, 32, total_length
, pc
, & value
);
844 value
= ((((value
) * (4))) + (((pc
) + (4))));
845 fields
->f_offset
= value
;
848 case IQ2000_OPERAND_RD
:
849 length
= extract_normal (cd
, ex_info
, insn_value
, 0, 0, 15, 5, 32, total_length
, pc
, & fields
->f_rd
);
851 case IQ2000_OPERAND_RD_RS
:
853 length
= extract_normal (cd
, ex_info
, insn_value
, 0, 0, 15, 5, 32, total_length
, pc
, & fields
->f_rd
);
854 if (length
<= 0) break;
855 length
= extract_normal (cd
, ex_info
, insn_value
, 0, 0, 25, 5, 32, total_length
, pc
, & fields
->f_rs
);
856 if (length
<= 0) break;
858 FLD (f_rd_rs
) = FLD (f_rs
);
862 case IQ2000_OPERAND_RD_RT
:
864 length
= extract_normal (cd
, ex_info
, insn_value
, 0, 0, 15, 5, 32, total_length
, pc
, & fields
->f_rd
);
865 if (length
<= 0) break;
866 length
= extract_normal (cd
, ex_info
, insn_value
, 0, 0, 20, 5, 32, total_length
, pc
, & fields
->f_rt
);
867 if (length
<= 0) break;
869 FLD (f_rd_rt
) = FLD (f_rt
);
873 case IQ2000_OPERAND_RS
:
874 length
= extract_normal (cd
, ex_info
, insn_value
, 0, 0, 25, 5, 32, total_length
, pc
, & fields
->f_rs
);
876 case IQ2000_OPERAND_RT
:
877 length
= extract_normal (cd
, ex_info
, insn_value
, 0, 0, 20, 5, 32, total_length
, pc
, & fields
->f_rt
);
879 case IQ2000_OPERAND_RT_RS
:
881 length
= extract_normal (cd
, ex_info
, insn_value
, 0, 0, 20, 5, 32, total_length
, pc
, & fields
->f_rt
);
882 if (length
<= 0) break;
883 length
= extract_normal (cd
, ex_info
, insn_value
, 0, 0, 25, 5, 32, total_length
, pc
, & fields
->f_rs
);
884 if (length
<= 0) break;
886 FLD (f_rd_rs
) = FLD (f_rs
);
890 case IQ2000_OPERAND_SHAMT
:
891 length
= extract_normal (cd
, ex_info
, insn_value
, 0, 0, 10, 5, 32, total_length
, pc
, & fields
->f_shamt
);
895 /* xgettext:c-format */
896 opcodes_error_handler
897 (_("internal error: unrecognized field %d while decoding insn"),
905 cgen_insert_fn
* const iq2000_cgen_insert_handlers
[] =
910 cgen_extract_fn
* const iq2000_cgen_extract_handlers
[] =
915 int iq2000_cgen_get_int_operand (CGEN_CPU_DESC
, int, const CGEN_FIELDS
*);
916 bfd_vma
iq2000_cgen_get_vma_operand (CGEN_CPU_DESC
, int, const CGEN_FIELDS
*);
918 /* Getting values from cgen_fields is handled by a collection of functions.
919 They are distinguished by the type of the VALUE argument they return.
920 TODO: floating point, inlining support, remove cases where result type
924 iq2000_cgen_get_int_operand (CGEN_CPU_DESC cd ATTRIBUTE_UNUSED
,
926 const CGEN_FIELDS
* fields
)
932 case IQ2000_OPERAND__INDEX
:
933 value
= fields
->f_index
;
935 case IQ2000_OPERAND_BASE
:
936 value
= fields
->f_rs
;
938 case IQ2000_OPERAND_BASEOFF
:
939 value
= fields
->f_imm
;
941 case IQ2000_OPERAND_BITNUM
:
942 value
= fields
->f_rt
;
944 case IQ2000_OPERAND_BYTECOUNT
:
945 value
= fields
->f_bytecount
;
947 case IQ2000_OPERAND_CAM_Y
:
948 value
= fields
->f_cam_y
;
950 case IQ2000_OPERAND_CAM_Z
:
951 value
= fields
->f_cam_z
;
953 case IQ2000_OPERAND_CM_3FUNC
:
954 value
= fields
->f_cm_3func
;
956 case IQ2000_OPERAND_CM_3Z
:
957 value
= fields
->f_cm_3z
;
959 case IQ2000_OPERAND_CM_4FUNC
:
960 value
= fields
->f_cm_4func
;
962 case IQ2000_OPERAND_CM_4Z
:
963 value
= fields
->f_cm_4z
;
965 case IQ2000_OPERAND_COUNT
:
966 value
= fields
->f_count
;
968 case IQ2000_OPERAND_EXECODE
:
969 value
= fields
->f_excode
;
971 case IQ2000_OPERAND_HI16
:
972 value
= fields
->f_imm
;
974 case IQ2000_OPERAND_IMM
:
975 value
= fields
->f_imm
;
977 case IQ2000_OPERAND_JMPTARG
:
978 value
= fields
->f_jtarg
;
980 case IQ2000_OPERAND_JMPTARGQ10
:
981 value
= fields
->f_jtargq10
;
983 case IQ2000_OPERAND_LO16
:
984 value
= fields
->f_imm
;
986 case IQ2000_OPERAND_MASK
:
987 value
= fields
->f_mask
;
989 case IQ2000_OPERAND_MASKL
:
990 value
= fields
->f_maskl
;
992 case IQ2000_OPERAND_MASKQ10
:
993 value
= fields
->f_maskq10
;
995 case IQ2000_OPERAND_MASKR
:
996 value
= fields
->f_rs
;
998 case IQ2000_OPERAND_MLO16
:
999 value
= fields
->f_imm
;
1001 case IQ2000_OPERAND_OFFSET
:
1002 value
= fields
->f_offset
;
1004 case IQ2000_OPERAND_RD
:
1005 value
= fields
->f_rd
;
1007 case IQ2000_OPERAND_RD_RS
:
1008 value
= fields
->f_rd_rs
;
1010 case IQ2000_OPERAND_RD_RT
:
1011 value
= fields
->f_rd_rt
;
1013 case IQ2000_OPERAND_RS
:
1014 value
= fields
->f_rs
;
1016 case IQ2000_OPERAND_RT
:
1017 value
= fields
->f_rt
;
1019 case IQ2000_OPERAND_RT_RS
:
1020 value
= fields
->f_rt_rs
;
1022 case IQ2000_OPERAND_SHAMT
:
1023 value
= fields
->f_shamt
;
1027 /* xgettext:c-format */
1028 opcodes_error_handler
1029 (_("internal error: unrecognized field %d while getting int operand"),
1038 iq2000_cgen_get_vma_operand (CGEN_CPU_DESC cd ATTRIBUTE_UNUSED
,
1040 const CGEN_FIELDS
* fields
)
1046 case IQ2000_OPERAND__INDEX
:
1047 value
= fields
->f_index
;
1049 case IQ2000_OPERAND_BASE
:
1050 value
= fields
->f_rs
;
1052 case IQ2000_OPERAND_BASEOFF
:
1053 value
= fields
->f_imm
;
1055 case IQ2000_OPERAND_BITNUM
:
1056 value
= fields
->f_rt
;
1058 case IQ2000_OPERAND_BYTECOUNT
:
1059 value
= fields
->f_bytecount
;
1061 case IQ2000_OPERAND_CAM_Y
:
1062 value
= fields
->f_cam_y
;
1064 case IQ2000_OPERAND_CAM_Z
:
1065 value
= fields
->f_cam_z
;
1067 case IQ2000_OPERAND_CM_3FUNC
:
1068 value
= fields
->f_cm_3func
;
1070 case IQ2000_OPERAND_CM_3Z
:
1071 value
= fields
->f_cm_3z
;
1073 case IQ2000_OPERAND_CM_4FUNC
:
1074 value
= fields
->f_cm_4func
;
1076 case IQ2000_OPERAND_CM_4Z
:
1077 value
= fields
->f_cm_4z
;
1079 case IQ2000_OPERAND_COUNT
:
1080 value
= fields
->f_count
;
1082 case IQ2000_OPERAND_EXECODE
:
1083 value
= fields
->f_excode
;
1085 case IQ2000_OPERAND_HI16
:
1086 value
= fields
->f_imm
;
1088 case IQ2000_OPERAND_IMM
:
1089 value
= fields
->f_imm
;
1091 case IQ2000_OPERAND_JMPTARG
:
1092 value
= fields
->f_jtarg
;
1094 case IQ2000_OPERAND_JMPTARGQ10
:
1095 value
= fields
->f_jtargq10
;
1097 case IQ2000_OPERAND_LO16
:
1098 value
= fields
->f_imm
;
1100 case IQ2000_OPERAND_MASK
:
1101 value
= fields
->f_mask
;
1103 case IQ2000_OPERAND_MASKL
:
1104 value
= fields
->f_maskl
;
1106 case IQ2000_OPERAND_MASKQ10
:
1107 value
= fields
->f_maskq10
;
1109 case IQ2000_OPERAND_MASKR
:
1110 value
= fields
->f_rs
;
1112 case IQ2000_OPERAND_MLO16
:
1113 value
= fields
->f_imm
;
1115 case IQ2000_OPERAND_OFFSET
:
1116 value
= fields
->f_offset
;
1118 case IQ2000_OPERAND_RD
:
1119 value
= fields
->f_rd
;
1121 case IQ2000_OPERAND_RD_RS
:
1122 value
= fields
->f_rd_rs
;
1124 case IQ2000_OPERAND_RD_RT
:
1125 value
= fields
->f_rd_rt
;
1127 case IQ2000_OPERAND_RS
:
1128 value
= fields
->f_rs
;
1130 case IQ2000_OPERAND_RT
:
1131 value
= fields
->f_rt
;
1133 case IQ2000_OPERAND_RT_RS
:
1134 value
= fields
->f_rt_rs
;
1136 case IQ2000_OPERAND_SHAMT
:
1137 value
= fields
->f_shamt
;
1141 /* xgettext:c-format */
1142 opcodes_error_handler
1143 (_("internal error: unrecognized field %d while getting vma operand"),
1151 void iq2000_cgen_set_int_operand (CGEN_CPU_DESC
, int, CGEN_FIELDS
*, int);
1152 void iq2000_cgen_set_vma_operand (CGEN_CPU_DESC
, int, CGEN_FIELDS
*, bfd_vma
);
1154 /* Stuffing values in cgen_fields is handled by a collection of functions.
1155 They are distinguished by the type of the VALUE argument they accept.
1156 TODO: floating point, inlining support, remove cases where argument type
1160 iq2000_cgen_set_int_operand (CGEN_CPU_DESC cd ATTRIBUTE_UNUSED
,
1162 CGEN_FIELDS
* fields
,
1167 case IQ2000_OPERAND__INDEX
:
1168 fields
->f_index
= value
;
1170 case IQ2000_OPERAND_BASE
:
1171 fields
->f_rs
= value
;
1173 case IQ2000_OPERAND_BASEOFF
:
1174 fields
->f_imm
= value
;
1176 case IQ2000_OPERAND_BITNUM
:
1177 fields
->f_rt
= value
;
1179 case IQ2000_OPERAND_BYTECOUNT
:
1180 fields
->f_bytecount
= value
;
1182 case IQ2000_OPERAND_CAM_Y
:
1183 fields
->f_cam_y
= value
;
1185 case IQ2000_OPERAND_CAM_Z
:
1186 fields
->f_cam_z
= value
;
1188 case IQ2000_OPERAND_CM_3FUNC
:
1189 fields
->f_cm_3func
= value
;
1191 case IQ2000_OPERAND_CM_3Z
:
1192 fields
->f_cm_3z
= value
;
1194 case IQ2000_OPERAND_CM_4FUNC
:
1195 fields
->f_cm_4func
= value
;
1197 case IQ2000_OPERAND_CM_4Z
:
1198 fields
->f_cm_4z
= value
;
1200 case IQ2000_OPERAND_COUNT
:
1201 fields
->f_count
= value
;
1203 case IQ2000_OPERAND_EXECODE
:
1204 fields
->f_excode
= value
;
1206 case IQ2000_OPERAND_HI16
:
1207 fields
->f_imm
= value
;
1209 case IQ2000_OPERAND_IMM
:
1210 fields
->f_imm
= value
;
1212 case IQ2000_OPERAND_JMPTARG
:
1213 fields
->f_jtarg
= value
;
1215 case IQ2000_OPERAND_JMPTARGQ10
:
1216 fields
->f_jtargq10
= value
;
1218 case IQ2000_OPERAND_LO16
:
1219 fields
->f_imm
= value
;
1221 case IQ2000_OPERAND_MASK
:
1222 fields
->f_mask
= value
;
1224 case IQ2000_OPERAND_MASKL
:
1225 fields
->f_maskl
= value
;
1227 case IQ2000_OPERAND_MASKQ10
:
1228 fields
->f_maskq10
= value
;
1230 case IQ2000_OPERAND_MASKR
:
1231 fields
->f_rs
= value
;
1233 case IQ2000_OPERAND_MLO16
:
1234 fields
->f_imm
= value
;
1236 case IQ2000_OPERAND_OFFSET
:
1237 fields
->f_offset
= value
;
1239 case IQ2000_OPERAND_RD
:
1240 fields
->f_rd
= value
;
1242 case IQ2000_OPERAND_RD_RS
:
1243 fields
->f_rd_rs
= value
;
1245 case IQ2000_OPERAND_RD_RT
:
1246 fields
->f_rd_rt
= value
;
1248 case IQ2000_OPERAND_RS
:
1249 fields
->f_rs
= value
;
1251 case IQ2000_OPERAND_RT
:
1252 fields
->f_rt
= value
;
1254 case IQ2000_OPERAND_RT_RS
:
1255 fields
->f_rt_rs
= value
;
1257 case IQ2000_OPERAND_SHAMT
:
1258 fields
->f_shamt
= value
;
1262 /* xgettext:c-format */
1263 opcodes_error_handler
1264 (_("internal error: unrecognized field %d while setting int operand"),
1271 iq2000_cgen_set_vma_operand (CGEN_CPU_DESC cd ATTRIBUTE_UNUSED
,
1273 CGEN_FIELDS
* fields
,
1278 case IQ2000_OPERAND__INDEX
:
1279 fields
->f_index
= value
;
1281 case IQ2000_OPERAND_BASE
:
1282 fields
->f_rs
= value
;
1284 case IQ2000_OPERAND_BASEOFF
:
1285 fields
->f_imm
= value
;
1287 case IQ2000_OPERAND_BITNUM
:
1288 fields
->f_rt
= value
;
1290 case IQ2000_OPERAND_BYTECOUNT
:
1291 fields
->f_bytecount
= value
;
1293 case IQ2000_OPERAND_CAM_Y
:
1294 fields
->f_cam_y
= value
;
1296 case IQ2000_OPERAND_CAM_Z
:
1297 fields
->f_cam_z
= value
;
1299 case IQ2000_OPERAND_CM_3FUNC
:
1300 fields
->f_cm_3func
= value
;
1302 case IQ2000_OPERAND_CM_3Z
:
1303 fields
->f_cm_3z
= value
;
1305 case IQ2000_OPERAND_CM_4FUNC
:
1306 fields
->f_cm_4func
= value
;
1308 case IQ2000_OPERAND_CM_4Z
:
1309 fields
->f_cm_4z
= value
;
1311 case IQ2000_OPERAND_COUNT
:
1312 fields
->f_count
= value
;
1314 case IQ2000_OPERAND_EXECODE
:
1315 fields
->f_excode
= value
;
1317 case IQ2000_OPERAND_HI16
:
1318 fields
->f_imm
= value
;
1320 case IQ2000_OPERAND_IMM
:
1321 fields
->f_imm
= value
;
1323 case IQ2000_OPERAND_JMPTARG
:
1324 fields
->f_jtarg
= value
;
1326 case IQ2000_OPERAND_JMPTARGQ10
:
1327 fields
->f_jtargq10
= value
;
1329 case IQ2000_OPERAND_LO16
:
1330 fields
->f_imm
= value
;
1332 case IQ2000_OPERAND_MASK
:
1333 fields
->f_mask
= value
;
1335 case IQ2000_OPERAND_MASKL
:
1336 fields
->f_maskl
= value
;
1338 case IQ2000_OPERAND_MASKQ10
:
1339 fields
->f_maskq10
= value
;
1341 case IQ2000_OPERAND_MASKR
:
1342 fields
->f_rs
= value
;
1344 case IQ2000_OPERAND_MLO16
:
1345 fields
->f_imm
= value
;
1347 case IQ2000_OPERAND_OFFSET
:
1348 fields
->f_offset
= value
;
1350 case IQ2000_OPERAND_RD
:
1351 fields
->f_rd
= value
;
1353 case IQ2000_OPERAND_RD_RS
:
1354 fields
->f_rd_rs
= value
;
1356 case IQ2000_OPERAND_RD_RT
:
1357 fields
->f_rd_rt
= value
;
1359 case IQ2000_OPERAND_RS
:
1360 fields
->f_rs
= value
;
1362 case IQ2000_OPERAND_RT
:
1363 fields
->f_rt
= value
;
1365 case IQ2000_OPERAND_RT_RS
:
1366 fields
->f_rt_rs
= value
;
1368 case IQ2000_OPERAND_SHAMT
:
1369 fields
->f_shamt
= value
;
1373 /* xgettext:c-format */
1374 opcodes_error_handler
1375 (_("internal error: unrecognized field %d while setting vma operand"),
1381 /* Function to call before using the instruction builder tables. */
1384 iq2000_cgen_init_ibld_table (CGEN_CPU_DESC cd
)
1386 cd
->insert_handlers
= & iq2000_cgen_insert_handlers
[0];
1387 cd
->extract_handlers
= & iq2000_cgen_extract_handlers
[0];
1389 cd
->insert_operand
= iq2000_cgen_insert_operand
;
1390 cd
->extract_operand
= iq2000_cgen_extract_operand
;
1392 cd
->get_int_operand
= iq2000_cgen_get_int_operand
;
1393 cd
->set_int_operand
= iq2000_cgen_set_int_operand
;
1394 cd
->get_vma_operand
= iq2000_cgen_get_vma_operand
;
1395 cd
->set_vma_operand
= iq2000_cgen_set_vma_operand
;