956 lines
26 KiB
C
956 lines
26 KiB
C
/* DO NOT EDIT! -*- buffer-read-only: t -*- vi:set ro: */
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/* Instruction building/extraction support for ip2k. -*- C -*-
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THIS FILE IS MACHINE GENERATED WITH CGEN: Cpu tools GENerator.
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- the resultant file is machine generated, cgen-ibld.in isn't
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Copyright (C) 1996-2022 Free Software Foundation, Inc.
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This file is part of libopcodes.
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This library is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 3, or (at your option)
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any later version.
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It is distributed in the hope that it will be useful, but WITHOUT
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ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
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or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public
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License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software Foundation, Inc.,
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51 Franklin Street - Fifth Floor, Boston, MA 02110-1301, USA. */
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/* ??? Eventually more and more of this stuff can go to cpu-independent files.
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Keep that in mind. */
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#include "sysdep.h"
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#include <stdio.h>
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#include "ansidecl.h"
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#include "dis-asm.h"
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#include "bfd.h"
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#include "symcat.h"
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#include "ip2k-desc.h"
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#include "ip2k-opc.h"
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#include "cgen/basic-modes.h"
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#include "opintl.h"
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#include "safe-ctype.h"
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#undef min
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#define min(a,b) ((a) < (b) ? (a) : (b))
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#undef max
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#define max(a,b) ((a) > (b) ? (a) : (b))
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/* Used by the ifield rtx function. */
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#define FLD(f) (fields->f)
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static const char * insert_normal
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(CGEN_CPU_DESC, long, unsigned int, unsigned int, unsigned int,
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unsigned int, unsigned int, unsigned int, CGEN_INSN_BYTES_PTR);
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static const char * insert_insn_normal
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(CGEN_CPU_DESC, const CGEN_INSN *,
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CGEN_FIELDS *, CGEN_INSN_BYTES_PTR, bfd_vma);
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static int extract_normal
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(CGEN_CPU_DESC, CGEN_EXTRACT_INFO *, CGEN_INSN_INT,
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unsigned int, unsigned int, unsigned int, unsigned int,
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unsigned int, unsigned int, bfd_vma, long *);
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static int extract_insn_normal
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(CGEN_CPU_DESC, const CGEN_INSN *, CGEN_EXTRACT_INFO *,
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CGEN_INSN_INT, CGEN_FIELDS *, bfd_vma);
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#if CGEN_INT_INSN_P
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static void put_insn_int_value
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(CGEN_CPU_DESC, CGEN_INSN_BYTES_PTR, int, int, CGEN_INSN_INT);
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#endif
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#if ! CGEN_INT_INSN_P
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static CGEN_INLINE void insert_1
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(CGEN_CPU_DESC, unsigned long, int, int, int, unsigned char *);
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static CGEN_INLINE int fill_cache
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(CGEN_CPU_DESC, CGEN_EXTRACT_INFO *, int, int, bfd_vma);
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static CGEN_INLINE long extract_1
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(CGEN_CPU_DESC, CGEN_EXTRACT_INFO *, int, int, int, unsigned char *, bfd_vma);
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#endif
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/* Operand insertion. */
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#if ! CGEN_INT_INSN_P
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/* Subroutine of insert_normal. */
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static CGEN_INLINE void
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insert_1 (CGEN_CPU_DESC cd,
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unsigned long value,
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int start,
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int length,
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int word_length,
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unsigned char *bufp)
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{
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unsigned long x, mask;
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int shift;
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x = cgen_get_insn_value (cd, bufp, word_length, cd->endian);
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/* Written this way to avoid undefined behaviour. */
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mask = (1UL << (length - 1) << 1) - 1;
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if (CGEN_INSN_LSB0_P)
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shift = (start + 1) - length;
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else
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shift = (word_length - (start + length));
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x = (x & ~(mask << shift)) | ((value & mask) << shift);
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cgen_put_insn_value (cd, bufp, word_length, (bfd_vma) x, cd->endian);
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}
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#endif /* ! CGEN_INT_INSN_P */
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/* Default insertion routine.
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ATTRS is a mask of the boolean attributes.
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WORD_OFFSET is the offset in bits from the start of the insn of the value.
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WORD_LENGTH is the length of the word in bits in which the value resides.
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START is the starting bit number in the word, architecture origin.
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LENGTH is the length of VALUE in bits.
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TOTAL_LENGTH is the total length of the insn in bits.
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The result is an error message or NULL if success. */
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/* ??? This duplicates functionality with bfd's howto table and
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bfd_install_relocation. */
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/* ??? This doesn't handle bfd_vma's. Create another function when
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necessary. */
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static const char *
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insert_normal (CGEN_CPU_DESC cd,
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long value,
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unsigned int attrs,
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unsigned int word_offset,
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unsigned int start,
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unsigned int length,
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unsigned int word_length,
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unsigned int total_length,
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CGEN_INSN_BYTES_PTR buffer)
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{
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static char errbuf[100];
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unsigned long mask;
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/* If LENGTH is zero, this operand doesn't contribute to the value. */
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if (length == 0)
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return NULL;
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/* Written this way to avoid undefined behaviour. */
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mask = (1UL << (length - 1) << 1) - 1;
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if (word_length > 8 * sizeof (CGEN_INSN_INT))
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abort ();
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/* For architectures with insns smaller than the base-insn-bitsize,
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word_length may be too big. */
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if (cd->min_insn_bitsize < cd->base_insn_bitsize)
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{
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if (word_offset == 0
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&& word_length > total_length)
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word_length = total_length;
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}
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/* Ensure VALUE will fit. */
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if (CGEN_BOOL_ATTR (attrs, CGEN_IFLD_SIGN_OPT))
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{
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long minval = - (1UL << (length - 1));
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unsigned long maxval = mask;
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if ((value > 0 && (unsigned long) value > maxval)
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|| value < minval)
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{
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/* xgettext:c-format */
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sprintf (errbuf,
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_("operand out of range (%ld not between %ld and %lu)"),
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value, minval, maxval);
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return errbuf;
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}
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}
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else if (! CGEN_BOOL_ATTR (attrs, CGEN_IFLD_SIGNED))
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{
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unsigned long maxval = mask;
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unsigned long val = (unsigned long) value;
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/* For hosts with a word size > 32 check to see if value has been sign
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extended beyond 32 bits. If so then ignore these higher sign bits
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as the user is attempting to store a 32-bit signed value into an
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unsigned 32-bit field which is allowed. */
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if (sizeof (unsigned long) > 4 && ((value >> 32) == -1))
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val &= 0xFFFFFFFF;
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if (val > maxval)
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{
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/* xgettext:c-format */
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sprintf (errbuf,
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_("operand out of range (0x%lx not between 0 and 0x%lx)"),
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val, maxval);
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return errbuf;
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}
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}
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else
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{
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if (! cgen_signed_overflow_ok_p (cd))
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{
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long minval = - (1UL << (length - 1));
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long maxval = (1UL << (length - 1)) - 1;
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if (value < minval || value > maxval)
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{
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sprintf
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/* xgettext:c-format */
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(errbuf, _("operand out of range (%ld not between %ld and %ld)"),
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value, minval, maxval);
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return errbuf;
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}
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}
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}
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#if CGEN_INT_INSN_P
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{
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int shift_within_word, shift_to_word, shift;
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/* How to shift the value to BIT0 of the word. */
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shift_to_word = total_length - (word_offset + word_length);
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/* How to shift the value to the field within the word. */
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if (CGEN_INSN_LSB0_P)
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shift_within_word = start + 1 - length;
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else
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shift_within_word = word_length - start - length;
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/* The total SHIFT, then mask in the value. */
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shift = shift_to_word + shift_within_word;
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*buffer = (*buffer & ~(mask << shift)) | ((value & mask) << shift);
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}
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#else /* ! CGEN_INT_INSN_P */
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{
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unsigned char *bufp = (unsigned char *) buffer + word_offset / 8;
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insert_1 (cd, value, start, length, word_length, bufp);
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}
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#endif /* ! CGEN_INT_INSN_P */
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return NULL;
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}
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/* Default insn builder (insert handler).
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The instruction is recorded in CGEN_INT_INSN_P byte order (meaning
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that if CGEN_INSN_BYTES_PTR is an int * and thus, the value is
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recorded in host byte order, otherwise BUFFER is an array of bytes
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and the value is recorded in target byte order).
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The result is an error message or NULL if success. */
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static const char *
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insert_insn_normal (CGEN_CPU_DESC cd,
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const CGEN_INSN * insn,
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CGEN_FIELDS * fields,
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CGEN_INSN_BYTES_PTR buffer,
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bfd_vma pc)
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{
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const CGEN_SYNTAX *syntax = CGEN_INSN_SYNTAX (insn);
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unsigned long value;
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const CGEN_SYNTAX_CHAR_TYPE * syn;
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CGEN_INIT_INSERT (cd);
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value = CGEN_INSN_BASE_VALUE (insn);
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/* If we're recording insns as numbers (rather than a string of bytes),
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target byte order handling is deferred until later. */
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#if CGEN_INT_INSN_P
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put_insn_int_value (cd, buffer, cd->base_insn_bitsize,
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CGEN_FIELDS_BITSIZE (fields), value);
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#else
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cgen_put_insn_value (cd, buffer, min ((unsigned) cd->base_insn_bitsize,
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(unsigned) CGEN_FIELDS_BITSIZE (fields)),
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value, cd->insn_endian);
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#endif /* ! CGEN_INT_INSN_P */
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/* ??? It would be better to scan the format's fields.
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Still need to be able to insert a value based on the operand though;
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e.g. storing a branch displacement that got resolved later.
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Needs more thought first. */
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for (syn = CGEN_SYNTAX_STRING (syntax); * syn; ++ syn)
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{
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const char *errmsg;
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if (CGEN_SYNTAX_CHAR_P (* syn))
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continue;
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errmsg = (* cd->insert_operand) (cd, CGEN_SYNTAX_FIELD (*syn),
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fields, buffer, pc);
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if (errmsg)
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return errmsg;
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}
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return NULL;
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}
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#if CGEN_INT_INSN_P
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/* Cover function to store an insn value into an integral insn. Must go here
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because it needs <prefix>-desc.h for CGEN_INT_INSN_P. */
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static void
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put_insn_int_value (CGEN_CPU_DESC cd ATTRIBUTE_UNUSED,
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CGEN_INSN_BYTES_PTR buf,
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int length,
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int insn_length,
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CGEN_INSN_INT value)
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{
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/* For architectures with insns smaller than the base-insn-bitsize,
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length may be too big. */
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if (length > insn_length)
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*buf = value;
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else
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{
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int shift = insn_length - length;
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/* Written this way to avoid undefined behaviour. */
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CGEN_INSN_INT mask = length == 0 ? 0 : (1UL << (length - 1) << 1) - 1;
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*buf = (*buf & ~(mask << shift)) | ((value & mask) << shift);
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}
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}
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#endif
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/* Operand extraction. */
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#if ! CGEN_INT_INSN_P
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/* Subroutine of extract_normal.
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Ensure sufficient bytes are cached in EX_INFO.
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OFFSET is the offset in bytes from the start of the insn of the value.
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BYTES is the length of the needed value.
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Returns 1 for success, 0 for failure. */
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static CGEN_INLINE int
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fill_cache (CGEN_CPU_DESC cd ATTRIBUTE_UNUSED,
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CGEN_EXTRACT_INFO *ex_info,
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int offset,
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int bytes,
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bfd_vma pc)
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{
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/* It's doubtful that the middle part has already been fetched so
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we don't optimize that case. kiss. */
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unsigned int mask;
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disassemble_info *info = (disassemble_info *) ex_info->dis_info;
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/* First do a quick check. */
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mask = (1 << bytes) - 1;
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if (((ex_info->valid >> offset) & mask) == mask)
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return 1;
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/* Search for the first byte we need to read. */
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for (mask = 1 << offset; bytes > 0; --bytes, ++offset, mask <<= 1)
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if (! (mask & ex_info->valid))
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break;
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if (bytes)
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{
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int status;
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pc += offset;
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status = (*info->read_memory_func)
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(pc, ex_info->insn_bytes + offset, bytes, info);
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if (status != 0)
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{
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(*info->memory_error_func) (status, pc, info);
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return 0;
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}
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ex_info->valid |= ((1 << bytes) - 1) << offset;
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}
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return 1;
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}
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/* Subroutine of extract_normal. */
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static CGEN_INLINE long
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extract_1 (CGEN_CPU_DESC cd,
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CGEN_EXTRACT_INFO *ex_info ATTRIBUTE_UNUSED,
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int start,
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int length,
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int word_length,
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unsigned char *bufp,
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bfd_vma pc ATTRIBUTE_UNUSED)
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{
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unsigned long x;
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int shift;
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x = cgen_get_insn_value (cd, bufp, word_length, cd->endian);
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if (CGEN_INSN_LSB0_P)
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shift = (start + 1) - length;
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else
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shift = (word_length - (start + length));
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return x >> shift;
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}
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#endif /* ! CGEN_INT_INSN_P */
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/* Default extraction routine.
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INSN_VALUE is the first base_insn_bitsize bits of the insn in host order,
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or sometimes less for cases like the m32r where the base insn size is 32
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but some insns are 16 bits.
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ATTRS is a mask of the boolean attributes. We only need `SIGNED',
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but for generality we take a bitmask of all of them.
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WORD_OFFSET is the offset in bits from the start of the insn of the value.
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WORD_LENGTH is the length of the word in bits in which the value resides.
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START is the starting bit number in the word, architecture origin.
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LENGTH is the length of VALUE in bits.
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TOTAL_LENGTH is the total length of the insn in bits.
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Returns 1 for success, 0 for failure. */
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/* ??? The return code isn't properly used. wip. */
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/* ??? This doesn't handle bfd_vma's. Create another function when
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necessary. */
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static int
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extract_normal (CGEN_CPU_DESC cd,
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#if ! CGEN_INT_INSN_P
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CGEN_EXTRACT_INFO *ex_info,
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#else
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CGEN_EXTRACT_INFO *ex_info ATTRIBUTE_UNUSED,
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#endif
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CGEN_INSN_INT insn_value,
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unsigned int attrs,
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unsigned int word_offset,
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unsigned int start,
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unsigned int length,
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unsigned int word_length,
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unsigned int total_length,
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#if ! CGEN_INT_INSN_P
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bfd_vma pc,
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#else
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bfd_vma pc ATTRIBUTE_UNUSED,
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#endif
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long *valuep)
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{
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long value, mask;
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/* If LENGTH is zero, this operand doesn't contribute to the value
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so give it a standard value of zero. */
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if (length == 0)
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{
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*valuep = 0;
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return 1;
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}
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if (word_length > 8 * sizeof (CGEN_INSN_INT))
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abort ();
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/* For architectures with insns smaller than the insn-base-bitsize,
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word_length may be too big. */
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if (cd->min_insn_bitsize < cd->base_insn_bitsize)
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{
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if (word_offset + word_length > total_length)
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word_length = total_length - word_offset;
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}
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/* Does the value reside in INSN_VALUE, and at the right alignment? */
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if (CGEN_INT_INSN_P || (word_offset == 0 && word_length == total_length))
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{
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if (CGEN_INSN_LSB0_P)
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value = insn_value >> ((word_offset + start + 1) - length);
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else
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value = insn_value >> (total_length - ( word_offset + start + length));
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}
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#if ! CGEN_INT_INSN_P
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else
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{
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unsigned char *bufp = ex_info->insn_bytes + word_offset / 8;
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if (word_length > 8 * sizeof (CGEN_INSN_INT))
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abort ();
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if (fill_cache (cd, ex_info, word_offset / 8, word_length / 8, pc) == 0)
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{
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*valuep = 0;
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return 0;
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}
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value = extract_1 (cd, ex_info, start, length, word_length, bufp, pc);
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}
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#endif /* ! CGEN_INT_INSN_P */
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/* Written this way to avoid undefined behaviour. */
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mask = (1UL << (length - 1) << 1) - 1;
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value &= mask;
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/* sign extend? */
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if (CGEN_BOOL_ATTR (attrs, CGEN_IFLD_SIGNED)
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&& (value & (1UL << (length - 1))))
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value |= ~mask;
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*valuep = value;
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return 1;
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}
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/* Default insn extractor.
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INSN_VALUE is the first base_insn_bitsize bits, translated to host order.
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The extracted fields are stored in FIELDS.
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EX_INFO is used to handle reading variable length insns.
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Return the length of the insn in bits, or 0 if no match,
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or -1 if an error occurs fetching data (memory_error_func will have
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been called). */
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static int
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extract_insn_normal (CGEN_CPU_DESC cd,
|
||
const CGEN_INSN *insn,
|
||
CGEN_EXTRACT_INFO *ex_info,
|
||
CGEN_INSN_INT insn_value,
|
||
CGEN_FIELDS *fields,
|
||
bfd_vma pc)
|
||
{
|
||
const CGEN_SYNTAX *syntax = CGEN_INSN_SYNTAX (insn);
|
||
const CGEN_SYNTAX_CHAR_TYPE *syn;
|
||
|
||
CGEN_FIELDS_BITSIZE (fields) = CGEN_INSN_BITSIZE (insn);
|
||
|
||
CGEN_INIT_EXTRACT (cd);
|
||
|
||
for (syn = CGEN_SYNTAX_STRING (syntax); *syn; ++syn)
|
||
{
|
||
int length;
|
||
|
||
if (CGEN_SYNTAX_CHAR_P (*syn))
|
||
continue;
|
||
|
||
length = (* cd->extract_operand) (cd, CGEN_SYNTAX_FIELD (*syn),
|
||
ex_info, insn_value, fields, pc);
|
||
if (length <= 0)
|
||
return length;
|
||
}
|
||
|
||
/* We recognized and successfully extracted this insn. */
|
||
return CGEN_INSN_BITSIZE (insn);
|
||
}
|
||
|
||
/* Machine generated code added here. */
|
||
|
||
const char * ip2k_cgen_insert_operand
|
||
(CGEN_CPU_DESC, int, CGEN_FIELDS *, CGEN_INSN_BYTES_PTR, bfd_vma);
|
||
|
||
/* Main entry point for operand insertion.
|
||
|
||
This function is basically just a big switch statement. Earlier versions
|
||
used tables to look up the function to use, but
|
||
- if the table contains both assembler and disassembler functions then
|
||
the disassembler contains much of the assembler and vice-versa,
|
||
- there's a lot of inlining possibilities as things grow,
|
||
- using a switch statement avoids the function call overhead.
|
||
|
||
This function could be moved into `parse_insn_normal', but keeping it
|
||
separate makes clear the interface between `parse_insn_normal' and each of
|
||
the handlers. It's also needed by GAS to insert operands that couldn't be
|
||
resolved during parsing. */
|
||
|
||
const char *
|
||
ip2k_cgen_insert_operand (CGEN_CPU_DESC cd,
|
||
int opindex,
|
||
CGEN_FIELDS * fields,
|
||
CGEN_INSN_BYTES_PTR buffer,
|
||
bfd_vma pc ATTRIBUTE_UNUSED)
|
||
{
|
||
const char * errmsg = NULL;
|
||
unsigned int total_length = CGEN_FIELDS_BITSIZE (fields);
|
||
|
||
switch (opindex)
|
||
{
|
||
case IP2K_OPERAND_ADDR16CJP :
|
||
errmsg = insert_normal (cd, fields->f_addr16cjp, 0|(1<<CGEN_IFLD_ABS_ADDR), 0, 12, 13, 16, total_length, buffer);
|
||
break;
|
||
case IP2K_OPERAND_ADDR16H :
|
||
errmsg = insert_normal (cd, fields->f_imm8, 0, 0, 7, 8, 16, total_length, buffer);
|
||
break;
|
||
case IP2K_OPERAND_ADDR16L :
|
||
errmsg = insert_normal (cd, fields->f_imm8, 0, 0, 7, 8, 16, total_length, buffer);
|
||
break;
|
||
case IP2K_OPERAND_ADDR16P :
|
||
errmsg = insert_normal (cd, fields->f_page3, 0, 0, 2, 3, 16, total_length, buffer);
|
||
break;
|
||
case IP2K_OPERAND_BITNO :
|
||
errmsg = insert_normal (cd, fields->f_bitno, 0, 0, 11, 3, 16, total_length, buffer);
|
||
break;
|
||
case IP2K_OPERAND_CBIT :
|
||
break;
|
||
case IP2K_OPERAND_DCBIT :
|
||
break;
|
||
case IP2K_OPERAND_FR :
|
||
errmsg = insert_normal (cd, fields->f_reg, 0|(1<<CGEN_IFLD_ABS_ADDR), 0, 8, 9, 16, total_length, buffer);
|
||
break;
|
||
case IP2K_OPERAND_LIT8 :
|
||
errmsg = insert_normal (cd, fields->f_imm8, 0, 0, 7, 8, 16, total_length, buffer);
|
||
break;
|
||
case IP2K_OPERAND_PABITS :
|
||
break;
|
||
case IP2K_OPERAND_RETI3 :
|
||
errmsg = insert_normal (cd, fields->f_reti3, 0, 0, 2, 3, 16, total_length, buffer);
|
||
break;
|
||
case IP2K_OPERAND_ZBIT :
|
||
break;
|
||
|
||
default :
|
||
/* xgettext:c-format */
|
||
opcodes_error_handler
|
||
(_("internal error: unrecognized field %d while building insn"),
|
||
opindex);
|
||
abort ();
|
||
}
|
||
|
||
return errmsg;
|
||
}
|
||
|
||
int ip2k_cgen_extract_operand
|
||
(CGEN_CPU_DESC, int, CGEN_EXTRACT_INFO *, CGEN_INSN_INT, CGEN_FIELDS *, bfd_vma);
|
||
|
||
/* Main entry point for operand extraction.
|
||
The result is <= 0 for error, >0 for success.
|
||
??? Actual values aren't well defined right now.
|
||
|
||
This function is basically just a big switch statement. Earlier versions
|
||
used tables to look up the function to use, but
|
||
- if the table contains both assembler and disassembler functions then
|
||
the disassembler contains much of the assembler and vice-versa,
|
||
- there's a lot of inlining possibilities as things grow,
|
||
- using a switch statement avoids the function call overhead.
|
||
|
||
This function could be moved into `print_insn_normal', but keeping it
|
||
separate makes clear the interface between `print_insn_normal' and each of
|
||
the handlers. */
|
||
|
||
int
|
||
ip2k_cgen_extract_operand (CGEN_CPU_DESC cd,
|
||
int opindex,
|
||
CGEN_EXTRACT_INFO *ex_info,
|
||
CGEN_INSN_INT insn_value,
|
||
CGEN_FIELDS * fields,
|
||
bfd_vma pc)
|
||
{
|
||
/* Assume success (for those operands that are nops). */
|
||
int length = 1;
|
||
unsigned int total_length = CGEN_FIELDS_BITSIZE (fields);
|
||
|
||
switch (opindex)
|
||
{
|
||
case IP2K_OPERAND_ADDR16CJP :
|
||
length = extract_normal (cd, ex_info, insn_value, 0|(1<<CGEN_IFLD_ABS_ADDR), 0, 12, 13, 16, total_length, pc, & fields->f_addr16cjp);
|
||
break;
|
||
case IP2K_OPERAND_ADDR16H :
|
||
length = extract_normal (cd, ex_info, insn_value, 0, 0, 7, 8, 16, total_length, pc, & fields->f_imm8);
|
||
break;
|
||
case IP2K_OPERAND_ADDR16L :
|
||
length = extract_normal (cd, ex_info, insn_value, 0, 0, 7, 8, 16, total_length, pc, & fields->f_imm8);
|
||
break;
|
||
case IP2K_OPERAND_ADDR16P :
|
||
length = extract_normal (cd, ex_info, insn_value, 0, 0, 2, 3, 16, total_length, pc, & fields->f_page3);
|
||
break;
|
||
case IP2K_OPERAND_BITNO :
|
||
length = extract_normal (cd, ex_info, insn_value, 0, 0, 11, 3, 16, total_length, pc, & fields->f_bitno);
|
||
break;
|
||
case IP2K_OPERAND_CBIT :
|
||
break;
|
||
case IP2K_OPERAND_DCBIT :
|
||
break;
|
||
case IP2K_OPERAND_FR :
|
||
length = extract_normal (cd, ex_info, insn_value, 0|(1<<CGEN_IFLD_ABS_ADDR), 0, 8, 9, 16, total_length, pc, & fields->f_reg);
|
||
break;
|
||
case IP2K_OPERAND_LIT8 :
|
||
length = extract_normal (cd, ex_info, insn_value, 0, 0, 7, 8, 16, total_length, pc, & fields->f_imm8);
|
||
break;
|
||
case IP2K_OPERAND_PABITS :
|
||
break;
|
||
case IP2K_OPERAND_RETI3 :
|
||
length = extract_normal (cd, ex_info, insn_value, 0, 0, 2, 3, 16, total_length, pc, & fields->f_reti3);
|
||
break;
|
||
case IP2K_OPERAND_ZBIT :
|
||
break;
|
||
|
||
default :
|
||
/* xgettext:c-format */
|
||
opcodes_error_handler
|
||
(_("internal error: unrecognized field %d while decoding insn"),
|
||
opindex);
|
||
abort ();
|
||
}
|
||
|
||
return length;
|
||
}
|
||
|
||
cgen_insert_fn * const ip2k_cgen_insert_handlers[] =
|
||
{
|
||
insert_insn_normal,
|
||
};
|
||
|
||
cgen_extract_fn * const ip2k_cgen_extract_handlers[] =
|
||
{
|
||
extract_insn_normal,
|
||
};
|
||
|
||
int ip2k_cgen_get_int_operand (CGEN_CPU_DESC, int, const CGEN_FIELDS *);
|
||
bfd_vma ip2k_cgen_get_vma_operand (CGEN_CPU_DESC, int, const CGEN_FIELDS *);
|
||
|
||
/* Getting values from cgen_fields is handled by a collection of functions.
|
||
They are distinguished by the type of the VALUE argument they return.
|
||
TODO: floating point, inlining support, remove cases where result type
|
||
not appropriate. */
|
||
|
||
int
|
||
ip2k_cgen_get_int_operand (CGEN_CPU_DESC cd ATTRIBUTE_UNUSED,
|
||
int opindex,
|
||
const CGEN_FIELDS * fields)
|
||
{
|
||
int value;
|
||
|
||
switch (opindex)
|
||
{
|
||
case IP2K_OPERAND_ADDR16CJP :
|
||
value = fields->f_addr16cjp;
|
||
break;
|
||
case IP2K_OPERAND_ADDR16H :
|
||
value = fields->f_imm8;
|
||
break;
|
||
case IP2K_OPERAND_ADDR16L :
|
||
value = fields->f_imm8;
|
||
break;
|
||
case IP2K_OPERAND_ADDR16P :
|
||
value = fields->f_page3;
|
||
break;
|
||
case IP2K_OPERAND_BITNO :
|
||
value = fields->f_bitno;
|
||
break;
|
||
case IP2K_OPERAND_CBIT :
|
||
value = 0;
|
||
break;
|
||
case IP2K_OPERAND_DCBIT :
|
||
value = 0;
|
||
break;
|
||
case IP2K_OPERAND_FR :
|
||
value = fields->f_reg;
|
||
break;
|
||
case IP2K_OPERAND_LIT8 :
|
||
value = fields->f_imm8;
|
||
break;
|
||
case IP2K_OPERAND_PABITS :
|
||
value = 0;
|
||
break;
|
||
case IP2K_OPERAND_RETI3 :
|
||
value = fields->f_reti3;
|
||
break;
|
||
case IP2K_OPERAND_ZBIT :
|
||
value = 0;
|
||
break;
|
||
|
||
default :
|
||
/* xgettext:c-format */
|
||
opcodes_error_handler
|
||
(_("internal error: unrecognized field %d while getting int operand"),
|
||
opindex);
|
||
abort ();
|
||
}
|
||
|
||
return value;
|
||
}
|
||
|
||
bfd_vma
|
||
ip2k_cgen_get_vma_operand (CGEN_CPU_DESC cd ATTRIBUTE_UNUSED,
|
||
int opindex,
|
||
const CGEN_FIELDS * fields)
|
||
{
|
||
bfd_vma value;
|
||
|
||
switch (opindex)
|
||
{
|
||
case IP2K_OPERAND_ADDR16CJP :
|
||
value = fields->f_addr16cjp;
|
||
break;
|
||
case IP2K_OPERAND_ADDR16H :
|
||
value = fields->f_imm8;
|
||
break;
|
||
case IP2K_OPERAND_ADDR16L :
|
||
value = fields->f_imm8;
|
||
break;
|
||
case IP2K_OPERAND_ADDR16P :
|
||
value = fields->f_page3;
|
||
break;
|
||
case IP2K_OPERAND_BITNO :
|
||
value = fields->f_bitno;
|
||
break;
|
||
case IP2K_OPERAND_CBIT :
|
||
value = 0;
|
||
break;
|
||
case IP2K_OPERAND_DCBIT :
|
||
value = 0;
|
||
break;
|
||
case IP2K_OPERAND_FR :
|
||
value = fields->f_reg;
|
||
break;
|
||
case IP2K_OPERAND_LIT8 :
|
||
value = fields->f_imm8;
|
||
break;
|
||
case IP2K_OPERAND_PABITS :
|
||
value = 0;
|
||
break;
|
||
case IP2K_OPERAND_RETI3 :
|
||
value = fields->f_reti3;
|
||
break;
|
||
case IP2K_OPERAND_ZBIT :
|
||
value = 0;
|
||
break;
|
||
|
||
default :
|
||
/* xgettext:c-format */
|
||
opcodes_error_handler
|
||
(_("internal error: unrecognized field %d while getting vma operand"),
|
||
opindex);
|
||
abort ();
|
||
}
|
||
|
||
return value;
|
||
}
|
||
|
||
void ip2k_cgen_set_int_operand (CGEN_CPU_DESC, int, CGEN_FIELDS *, int);
|
||
void ip2k_cgen_set_vma_operand (CGEN_CPU_DESC, int, CGEN_FIELDS *, bfd_vma);
|
||
|
||
/* Stuffing values in cgen_fields is handled by a collection of functions.
|
||
They are distinguished by the type of the VALUE argument they accept.
|
||
TODO: floating point, inlining support, remove cases where argument type
|
||
not appropriate. */
|
||
|
||
void
|
||
ip2k_cgen_set_int_operand (CGEN_CPU_DESC cd ATTRIBUTE_UNUSED,
|
||
int opindex,
|
||
CGEN_FIELDS * fields,
|
||
int value)
|
||
{
|
||
switch (opindex)
|
||
{
|
||
case IP2K_OPERAND_ADDR16CJP :
|
||
fields->f_addr16cjp = value;
|
||
break;
|
||
case IP2K_OPERAND_ADDR16H :
|
||
fields->f_imm8 = value;
|
||
break;
|
||
case IP2K_OPERAND_ADDR16L :
|
||
fields->f_imm8 = value;
|
||
break;
|
||
case IP2K_OPERAND_ADDR16P :
|
||
fields->f_page3 = value;
|
||
break;
|
||
case IP2K_OPERAND_BITNO :
|
||
fields->f_bitno = value;
|
||
break;
|
||
case IP2K_OPERAND_CBIT :
|
||
break;
|
||
case IP2K_OPERAND_DCBIT :
|
||
break;
|
||
case IP2K_OPERAND_FR :
|
||
fields->f_reg = value;
|
||
break;
|
||
case IP2K_OPERAND_LIT8 :
|
||
fields->f_imm8 = value;
|
||
break;
|
||
case IP2K_OPERAND_PABITS :
|
||
break;
|
||
case IP2K_OPERAND_RETI3 :
|
||
fields->f_reti3 = value;
|
||
break;
|
||
case IP2K_OPERAND_ZBIT :
|
||
break;
|
||
|
||
default :
|
||
/* xgettext:c-format */
|
||
opcodes_error_handler
|
||
(_("internal error: unrecognized field %d while setting int operand"),
|
||
opindex);
|
||
abort ();
|
||
}
|
||
}
|
||
|
||
void
|
||
ip2k_cgen_set_vma_operand (CGEN_CPU_DESC cd ATTRIBUTE_UNUSED,
|
||
int opindex,
|
||
CGEN_FIELDS * fields,
|
||
bfd_vma value)
|
||
{
|
||
switch (opindex)
|
||
{
|
||
case IP2K_OPERAND_ADDR16CJP :
|
||
fields->f_addr16cjp = value;
|
||
break;
|
||
case IP2K_OPERAND_ADDR16H :
|
||
fields->f_imm8 = value;
|
||
break;
|
||
case IP2K_OPERAND_ADDR16L :
|
||
fields->f_imm8 = value;
|
||
break;
|
||
case IP2K_OPERAND_ADDR16P :
|
||
fields->f_page3 = value;
|
||
break;
|
||
case IP2K_OPERAND_BITNO :
|
||
fields->f_bitno = value;
|
||
break;
|
||
case IP2K_OPERAND_CBIT :
|
||
break;
|
||
case IP2K_OPERAND_DCBIT :
|
||
break;
|
||
case IP2K_OPERAND_FR :
|
||
fields->f_reg = value;
|
||
break;
|
||
case IP2K_OPERAND_LIT8 :
|
||
fields->f_imm8 = value;
|
||
break;
|
||
case IP2K_OPERAND_PABITS :
|
||
break;
|
||
case IP2K_OPERAND_RETI3 :
|
||
fields->f_reti3 = value;
|
||
break;
|
||
case IP2K_OPERAND_ZBIT :
|
||
break;
|
||
|
||
default :
|
||
/* xgettext:c-format */
|
||
opcodes_error_handler
|
||
(_("internal error: unrecognized field %d while setting vma operand"),
|
||
opindex);
|
||
abort ();
|
||
}
|
||
}
|
||
|
||
/* Function to call before using the instruction builder tables. */
|
||
|
||
void
|
||
ip2k_cgen_init_ibld_table (CGEN_CPU_DESC cd)
|
||
{
|
||
cd->insert_handlers = & ip2k_cgen_insert_handlers[0];
|
||
cd->extract_handlers = & ip2k_cgen_extract_handlers[0];
|
||
|
||
cd->insert_operand = ip2k_cgen_insert_operand;
|
||
cd->extract_operand = ip2k_cgen_extract_operand;
|
||
|
||
cd->get_int_operand = ip2k_cgen_get_int_operand;
|
||
cd->set_int_operand = ip2k_cgen_set_int_operand;
|
||
cd->get_vma_operand = ip2k_cgen_get_vma_operand;
|
||
cd->set_vma_operand = ip2k_cgen_set_vma_operand;
|
||
}
|