--- /dev/null
+/* Instruction building/extraction support for lm32. -*- C -*-
+
+ THIS FILE IS MACHINE GENERATED WITH CGEN: Cpu tools GENerator.
+ - the resultant file is machine generated, cgen-ibld.in isn't
+
+ Copyright 1996, 1997, 1998, 1999, 2000, 2001, 2005, 2006, 2007,
+ 2008 Free Software Foundation, Inc.
+
+ This file is part of libopcodes.
+
+ This library is free software; you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation; either version 3, or (at your option)
+ any later version.
+
+ It is distributed in the hope that it will be useful, but WITHOUT
+ ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
+ or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public
+ License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with this program; if not, write to the Free Software Foundation, Inc.,
+ 51 Franklin Street - Fifth Floor, Boston, MA 02110-1301, USA. */
+
+/* ??? Eventually more and more of this stuff can go to cpu-independent files.
+ Keep that in mind. */
+
+#include "sysdep.h"
+#include <stdio.h>
+#include "ansidecl.h"
+#include "dis-asm.h"
+#include "bfd.h"
+#include "symcat.h"
+#include "lm32-desc.h"
+#include "lm32-opc.h"
+#include "opintl.h"
+#include "safe-ctype.h"
+
+#undef min
+#define min(a,b) ((a) < (b) ? (a) : (b))
+#undef max
+#define max(a,b) ((a) > (b) ? (a) : (b))
+
+/* Used by the ifield rtx function. */
+#define FLD(f) (fields->f)
+
+static const char * insert_normal
+ (CGEN_CPU_DESC, long, unsigned int, unsigned int, unsigned int,
+ unsigned int, unsigned int, unsigned int, CGEN_INSN_BYTES_PTR);
+static const char * insert_insn_normal
+ (CGEN_CPU_DESC, const CGEN_INSN *,
+ CGEN_FIELDS *, CGEN_INSN_BYTES_PTR, bfd_vma);
+static int extract_normal
+ (CGEN_CPU_DESC, CGEN_EXTRACT_INFO *, CGEN_INSN_INT,
+ unsigned int, unsigned int, unsigned int, unsigned int,
+ unsigned int, unsigned int, bfd_vma, long *);
+static int extract_insn_normal
+ (CGEN_CPU_DESC, const CGEN_INSN *, CGEN_EXTRACT_INFO *,
+ CGEN_INSN_INT, CGEN_FIELDS *, bfd_vma);
+#if CGEN_INT_INSN_P
+static void put_insn_int_value
+ (CGEN_CPU_DESC, CGEN_INSN_BYTES_PTR, int, int, CGEN_INSN_INT);
+#endif
+#if ! CGEN_INT_INSN_P
+static CGEN_INLINE void insert_1
+ (CGEN_CPU_DESC, unsigned long, int, int, int, unsigned char *);
+static CGEN_INLINE int fill_cache
+ (CGEN_CPU_DESC, CGEN_EXTRACT_INFO *, int, int, bfd_vma);
+static CGEN_INLINE long extract_1
+ (CGEN_CPU_DESC, CGEN_EXTRACT_INFO *, int, int, int, unsigned char *, bfd_vma);
+#endif
+\f
+/* Operand insertion. */
+
+#if ! CGEN_INT_INSN_P
+
+/* Subroutine of insert_normal. */
+
+static CGEN_INLINE void
+insert_1 (CGEN_CPU_DESC cd,
+ unsigned long value,
+ int start,
+ int length,
+ int word_length,
+ unsigned char *bufp)
+{
+ unsigned long x,mask;
+ int shift;
+
+ x = cgen_get_insn_value (cd, bufp, word_length);
+
+ /* Written this way to avoid undefined behaviour. */
+ mask = (((1L << (length - 1)) - 1) << 1) | 1;
+ if (CGEN_INSN_LSB0_P)
+ shift = (start + 1) - length;
+ else
+ shift = (word_length - (start + length));
+ x = (x & ~(mask << shift)) | ((value & mask) << shift);
+
+ cgen_put_insn_value (cd, bufp, word_length, (bfd_vma) x);
+}
+
+#endif /* ! CGEN_INT_INSN_P */
+
+/* Default insertion routine.
+
+ ATTRS is a mask of the boolean attributes.
+ WORD_OFFSET is the offset in bits from the start of the insn of the value.
+ WORD_LENGTH is the length of the word in bits in which the value resides.
+ START is the starting bit number in the word, architecture origin.
+ LENGTH is the length of VALUE in bits.
+ TOTAL_LENGTH is the total length of the insn in bits.
+
+ The result is an error message or NULL if success. */
+
+/* ??? This duplicates functionality with bfd's howto table and
+ bfd_install_relocation. */
+/* ??? This doesn't handle bfd_vma's. Create another function when
+ necessary. */
+
+static const char *
+insert_normal (CGEN_CPU_DESC cd,
+ long value,
+ unsigned int attrs,
+ unsigned int word_offset,
+ unsigned int start,
+ unsigned int length,
+ unsigned int word_length,
+ unsigned int total_length,
+ CGEN_INSN_BYTES_PTR buffer)
+{
+ static char errbuf[100];
+ /* Written this way to avoid undefined behaviour. */
+ unsigned long mask = (((1L << (length - 1)) - 1) << 1) | 1;
+
+ /* If LENGTH is zero, this operand doesn't contribute to the value. */
+ if (length == 0)
+ return NULL;
+
+ if (word_length > 32)
+ abort ();
+
+ /* For architectures with insns smaller than the base-insn-bitsize,
+ word_length may be too big. */
+ if (cd->min_insn_bitsize < cd->base_insn_bitsize)
+ {
+ if (word_offset == 0
+ && word_length > total_length)
+ word_length = total_length;
+ }
+
+ /* Ensure VALUE will fit. */
+ if (CGEN_BOOL_ATTR (attrs, CGEN_IFLD_SIGN_OPT))
+ {
+ long minval = - (1L << (length - 1));
+ unsigned long maxval = mask;
+
+ if ((value > 0 && (unsigned long) value > maxval)
+ || value < minval)
+ {
+ /* xgettext:c-format */
+ sprintf (errbuf,
+ _("operand out of range (%ld not between %ld and %lu)"),
+ value, minval, maxval);
+ return errbuf;
+ }
+ }
+ else if (! CGEN_BOOL_ATTR (attrs, CGEN_IFLD_SIGNED))
+ {
+ unsigned long maxval = mask;
+ unsigned long val = (unsigned long) value;
+
+ /* For hosts with a word size > 32 check to see if value has been sign
+ extended beyond 32 bits. If so then ignore these higher sign bits
+ as the user is attempting to store a 32-bit signed value into an
+ unsigned 32-bit field which is allowed. */
+ if (sizeof (unsigned long) > 4 && ((value >> 32) == -1))
+ val &= 0xFFFFFFFF;
+
+ if (val > maxval)
+ {
+ /* xgettext:c-format */
+ sprintf (errbuf,
+ _("operand out of range (0x%lx not between 0 and 0x%lx)"),
+ val, maxval);
+ return errbuf;
+ }
+ }
+ else
+ {
+ if (! cgen_signed_overflow_ok_p (cd))
+ {
+ long minval = - (1L << (length - 1));
+ long maxval = (1L << (length - 1)) - 1;
+
+ if (value < minval || value > maxval)
+ {
+ sprintf
+ /* xgettext:c-format */
+ (errbuf, _("operand out of range (%ld not between %ld and %ld)"),
+ value, minval, maxval);
+ return errbuf;
+ }
+ }
+ }
+
+#if CGEN_INT_INSN_P
+
+ {
+ int shift;
+
+ if (CGEN_INSN_LSB0_P)
+ shift = (word_offset + start + 1) - length;
+ else
+ shift = total_length - (word_offset + start + length);
+ *buffer = (*buffer & ~(mask << shift)) | ((value & mask) << shift);
+ }
+
+#else /* ! CGEN_INT_INSN_P */
+
+ {
+ unsigned char *bufp = (unsigned char *) buffer + word_offset / 8;
+
+ insert_1 (cd, value, start, length, word_length, bufp);
+ }
+
+#endif /* ! CGEN_INT_INSN_P */
+
+ return NULL;
+}
+
+/* Default insn builder (insert handler).
+ The instruction is recorded in CGEN_INT_INSN_P byte order (meaning
+ that if CGEN_INSN_BYTES_PTR is an int * and thus, the value is
+ recorded in host byte order, otherwise BUFFER is an array of bytes
+ and the value is recorded in target byte order).
+ The result is an error message or NULL if success. */
+
+static const char *
+insert_insn_normal (CGEN_CPU_DESC cd,
+ const CGEN_INSN * insn,
+ CGEN_FIELDS * fields,
+ CGEN_INSN_BYTES_PTR buffer,
+ bfd_vma pc)
+{
+ const CGEN_SYNTAX *syntax = CGEN_INSN_SYNTAX (insn);
+ unsigned long value;
+ const CGEN_SYNTAX_CHAR_TYPE * syn;
+
+ CGEN_INIT_INSERT (cd);
+ value = CGEN_INSN_BASE_VALUE (insn);
+
+ /* If we're recording insns as numbers (rather than a string of bytes),
+ target byte order handling is deferred until later. */
+
+#if CGEN_INT_INSN_P
+
+ put_insn_int_value (cd, buffer, cd->base_insn_bitsize,
+ CGEN_FIELDS_BITSIZE (fields), value);
+
+#else
+
+ cgen_put_insn_value (cd, buffer, min ((unsigned) cd->base_insn_bitsize,
+ (unsigned) CGEN_FIELDS_BITSIZE (fields)),
+ value);
+
+#endif /* ! CGEN_INT_INSN_P */
+
+ /* ??? It would be better to scan the format's fields.
+ Still need to be able to insert a value based on the operand though;
+ e.g. storing a branch displacement that got resolved later.
+ Needs more thought first. */
+
+ for (syn = CGEN_SYNTAX_STRING (syntax); * syn; ++ syn)
+ {
+ const char *errmsg;
+
+ if (CGEN_SYNTAX_CHAR_P (* syn))
+ continue;
+
+ errmsg = (* cd->insert_operand) (cd, CGEN_SYNTAX_FIELD (*syn),
+ fields, buffer, pc);
+ if (errmsg)
+ return errmsg;
+ }
+
+ return NULL;
+}
+
+#if CGEN_INT_INSN_P
+/* Cover function to store an insn value into an integral insn. Must go here
+ because it needs <prefix>-desc.h for CGEN_INT_INSN_P. */
+
+static void
+put_insn_int_value (CGEN_CPU_DESC cd ATTRIBUTE_UNUSED,
+ CGEN_INSN_BYTES_PTR buf,
+ int length,
+ int insn_length,
+ CGEN_INSN_INT value)
+{
+ /* For architectures with insns smaller than the base-insn-bitsize,
+ length may be too big. */
+ if (length > insn_length)
+ *buf = value;
+ else
+ {
+ int shift = insn_length - length;
+ /* Written this way to avoid undefined behaviour. */
+ CGEN_INSN_INT mask = (((1L << (length - 1)) - 1) << 1) | 1;
+
+ *buf = (*buf & ~(mask << shift)) | ((value & mask) << shift);
+ }
+}
+#endif
+\f
+/* Operand extraction. */
+
+#if ! CGEN_INT_INSN_P
+
+/* Subroutine of extract_normal.
+ Ensure sufficient bytes are cached in EX_INFO.
+ OFFSET is the offset in bytes from the start of the insn of the value.
+ BYTES is the length of the needed value.
+ Returns 1 for success, 0 for failure. */
+
+static CGEN_INLINE int
+fill_cache (CGEN_CPU_DESC cd ATTRIBUTE_UNUSED,
+ CGEN_EXTRACT_INFO *ex_info,
+ int offset,
+ int bytes,
+ bfd_vma pc)
+{
+ /* It's doubtful that the middle part has already been fetched so
+ we don't optimize that case. kiss. */
+ unsigned int mask;
+ disassemble_info *info = (disassemble_info *) ex_info->dis_info;
+
+ /* First do a quick check. */
+ mask = (1 << bytes) - 1;
+ if (((ex_info->valid >> offset) & mask) == mask)
+ return 1;
+
+ /* Search for the first byte we need to read. */
+ for (mask = 1 << offset; bytes > 0; --bytes, ++offset, mask <<= 1)
+ if (! (mask & ex_info->valid))
+ break;
+
+ if (bytes)
+ {
+ int status;
+
+ pc += offset;
+ status = (*info->read_memory_func)
+ (pc, ex_info->insn_bytes + offset, bytes, info);
+
+ if (status != 0)
+ {
+ (*info->memory_error_func) (status, pc, info);
+ return 0;
+ }
+
+ ex_info->valid |= ((1 << bytes) - 1) << offset;
+ }
+
+ return 1;
+}
+
+/* Subroutine of extract_normal. */
+
+static CGEN_INLINE long
+extract_1 (CGEN_CPU_DESC cd,
+ CGEN_EXTRACT_INFO *ex_info ATTRIBUTE_UNUSED,
+ int start,
+ int length,
+ int word_length,
+ unsigned char *bufp,
+ bfd_vma pc ATTRIBUTE_UNUSED)
+{
+ unsigned long x;
+ int shift;
+
+ x = cgen_get_insn_value (cd, bufp, word_length);
+
+ if (CGEN_INSN_LSB0_P)
+ shift = (start + 1) - length;
+ else
+ shift = (word_length - (start + length));
+ return x >> shift;
+}
+
+#endif /* ! CGEN_INT_INSN_P */
+
+/* Default extraction routine.
+
+ INSN_VALUE is the first base_insn_bitsize bits of the insn in host order,
+ or sometimes less for cases like the m32r where the base insn size is 32
+ but some insns are 16 bits.
+ ATTRS is a mask of the boolean attributes. We only need `SIGNED',
+ but for generality we take a bitmask of all of them.
+ WORD_OFFSET is the offset in bits from the start of the insn of the value.
+ WORD_LENGTH is the length of the word in bits in which the value resides.
+ START is the starting bit number in the word, architecture origin.
+ LENGTH is the length of VALUE in bits.
+ TOTAL_LENGTH is the total length of the insn in bits.
+
+ Returns 1 for success, 0 for failure. */
+
+/* ??? The return code isn't properly used. wip. */
+
+/* ??? This doesn't handle bfd_vma's. Create another function when
+ necessary. */
+
+static int
+extract_normal (CGEN_CPU_DESC cd,
+#if ! CGEN_INT_INSN_P
+ CGEN_EXTRACT_INFO *ex_info,
+#else
+ CGEN_EXTRACT_INFO *ex_info ATTRIBUTE_UNUSED,
+#endif
+ CGEN_INSN_INT insn_value,
+ unsigned int attrs,
+ unsigned int word_offset,
+ unsigned int start,
+ unsigned int length,
+ unsigned int word_length,
+ unsigned int total_length,
+#if ! CGEN_INT_INSN_P
+ bfd_vma pc,
+#else
+ bfd_vma pc ATTRIBUTE_UNUSED,
+#endif
+ long *valuep)
+{
+ long value, mask;
+
+ /* If LENGTH is zero, this operand doesn't contribute to the value
+ so give it a standard value of zero. */
+ if (length == 0)
+ {
+ *valuep = 0;
+ return 1;
+ }
+
+ if (word_length > 32)
+ abort ();
+
+ /* For architectures with insns smaller than the insn-base-bitsize,
+ word_length may be too big. */
+ if (cd->min_insn_bitsize < cd->base_insn_bitsize)
+ {
+ if (word_offset + word_length > total_length)
+ word_length = total_length - word_offset;
+ }
+
+ /* Does the value reside in INSN_VALUE, and at the right alignment? */
+
+ if (CGEN_INT_INSN_P || (word_offset == 0 && word_length == total_length))
+ {
+ if (CGEN_INSN_LSB0_P)
+ value = insn_value >> ((word_offset + start + 1) - length);
+ else
+ value = insn_value >> (total_length - ( word_offset + start + length));
+ }
+
+#if ! CGEN_INT_INSN_P
+
+ else
+ {
+ unsigned char *bufp = ex_info->insn_bytes + word_offset / 8;
+
+ if (word_length > 32)
+ abort ();
+
+ if (fill_cache (cd, ex_info, word_offset / 8, word_length / 8, pc) == 0)
+ return 0;
+
+ value = extract_1 (cd, ex_info, start, length, word_length, bufp, pc);
+ }
+
+#endif /* ! CGEN_INT_INSN_P */
+
+ /* Written this way to avoid undefined behaviour. */
+ mask = (((1L << (length - 1)) - 1) << 1) | 1;
+
+ value &= mask;
+ /* sign extend? */
+ if (CGEN_BOOL_ATTR (attrs, CGEN_IFLD_SIGNED)
+ && (value & (1L << (length - 1))))
+ value |= ~mask;
+
+ *valuep = value;
+
+ return 1;
+}
+
+/* Default insn extractor.
+
+ INSN_VALUE is the first base_insn_bitsize bits, translated to host order.
+ The extracted fields are stored in FIELDS.
+ EX_INFO is used to handle reading variable length insns.
+ Return the length of the insn in bits, or 0 if no match,
+ or -1 if an error occurs fetching data (memory_error_func will have
+ been called). */
+
+static int
+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);
+}
+\f
+/* Machine generated code added here. */
+
+const char * lm32_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 *
+lm32_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 LM32_OPERAND_BRANCH :
+ {
+ long value = fields->f_branch;
+ value = ((int) (((value) - (pc))) >> (2));
+ errmsg = insert_normal (cd, value, 0|(1<<CGEN_IFLD_SIGNED)|(1<<CGEN_IFLD_PCREL_ADDR), 0, 15, 16, 32, total_length, buffer);
+ }
+ break;
+ case LM32_OPERAND_CALL :
+ {
+ long value = fields->f_call;
+ value = ((int) (((value) - (pc))) >> (2));
+ errmsg = insert_normal (cd, value, 0|(1<<CGEN_IFLD_SIGNED)|(1<<CGEN_IFLD_PCREL_ADDR), 0, 25, 26, 32, total_length, buffer);
+ }
+ break;
+ case LM32_OPERAND_CSR :
+ errmsg = insert_normal (cd, fields->f_csr, 0, 0, 25, 5, 32, total_length, buffer);
+ break;
+ case LM32_OPERAND_EXCEPTION :
+ errmsg = insert_normal (cd, fields->f_exception, 0, 0, 25, 26, 32, total_length, buffer);
+ break;
+ case LM32_OPERAND_GOT16 :
+ errmsg = insert_normal (cd, fields->f_imm, 0|(1<<CGEN_IFLD_SIGNED), 0, 15, 16, 32, total_length, buffer);
+ break;
+ case LM32_OPERAND_GOTOFFHI16 :
+ errmsg = insert_normal (cd, fields->f_imm, 0|(1<<CGEN_IFLD_SIGNED), 0, 15, 16, 32, total_length, buffer);
+ break;
+ case LM32_OPERAND_GOTOFFLO16 :
+ errmsg = insert_normal (cd, fields->f_imm, 0|(1<<CGEN_IFLD_SIGNED), 0, 15, 16, 32, total_length, buffer);
+ break;
+ case LM32_OPERAND_GP16 :
+ errmsg = insert_normal (cd, fields->f_imm, 0|(1<<CGEN_IFLD_SIGNED), 0, 15, 16, 32, total_length, buffer);
+ break;
+ case LM32_OPERAND_HI16 :
+ errmsg = insert_normal (cd, fields->f_uimm, 0, 0, 15, 16, 32, total_length, buffer);
+ break;
+ case LM32_OPERAND_IMM :
+ errmsg = insert_normal (cd, fields->f_imm, 0|(1<<CGEN_IFLD_SIGNED), 0, 15, 16, 32, total_length, buffer);
+ break;
+ case LM32_OPERAND_LO16 :
+ errmsg = insert_normal (cd, fields->f_uimm, 0, 0, 15, 16, 32, total_length, buffer);
+ break;
+ case LM32_OPERAND_R0 :
+ errmsg = insert_normal (cd, fields->f_r0, 0, 0, 25, 5, 32, total_length, buffer);
+ break;
+ case LM32_OPERAND_R1 :
+ errmsg = insert_normal (cd, fields->f_r1, 0, 0, 20, 5, 32, total_length, buffer);
+ break;
+ case LM32_OPERAND_R2 :
+ errmsg = insert_normal (cd, fields->f_r2, 0, 0, 15, 5, 32, total_length, buffer);
+ break;
+ case LM32_OPERAND_SHIFT :
+ errmsg = insert_normal (cd, fields->f_shift, 0, 0, 4, 5, 32, total_length, buffer);
+ break;
+ case LM32_OPERAND_UIMM :
+ errmsg = insert_normal (cd, fields->f_uimm, 0, 0, 15, 16, 32, total_length, buffer);
+ break;
+ case LM32_OPERAND_USER :
+ errmsg = insert_normal (cd, fields->f_user, 0, 0, 10, 11, 32, total_length, buffer);
+ break;
+
+ default :
+ /* xgettext:c-format */
+ fprintf (stderr, _("Unrecognized field %d while building insn.\n"),
+ opindex);
+ abort ();
+ }
+
+ return errmsg;
+}
+
+int lm32_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
+lm32_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 LM32_OPERAND_BRANCH :
+ {
+ long value;
+ 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);
+ value = ((pc) + (((int) (((value) << (16))) >> (14))));
+ fields->f_branch = value;
+ }
+ break;
+ case LM32_OPERAND_CALL :
+ {
+ long value;
+ length = extract_normal (cd, ex_info, insn_value, 0|(1<<CGEN_IFLD_SIGNED)|(1<<CGEN_IFLD_PCREL_ADDR), 0, 25, 26, 32, total_length, pc, & value);
+ value = ((pc) + (((int) (((value) << (6))) >> (4))));
+ fields->f_call = value;
+ }
+ break;
+ case LM32_OPERAND_CSR :
+ length = extract_normal (cd, ex_info, insn_value, 0, 0, 25, 5, 32, total_length, pc, & fields->f_csr);
+ break;
+ case LM32_OPERAND_EXCEPTION :
+ length = extract_normal (cd, ex_info, insn_value, 0, 0, 25, 26, 32, total_length, pc, & fields->f_exception);
+ break;
+ case LM32_OPERAND_GOT16 :
+ length = extract_normal (cd, ex_info, insn_value, 0|(1<<CGEN_IFLD_SIGNED), 0, 15, 16, 32, total_length, pc, & fields->f_imm);
+ break;
+ case LM32_OPERAND_GOTOFFHI16 :
+ length = extract_normal (cd, ex_info, insn_value, 0|(1<<CGEN_IFLD_SIGNED), 0, 15, 16, 32, total_length, pc, & fields->f_imm);
+ break;
+ case LM32_OPERAND_GOTOFFLO16 :
+ length = extract_normal (cd, ex_info, insn_value, 0|(1<<CGEN_IFLD_SIGNED), 0, 15, 16, 32, total_length, pc, & fields->f_imm);
+ break;
+ case LM32_OPERAND_GP16 :
+ length = extract_normal (cd, ex_info, insn_value, 0|(1<<CGEN_IFLD_SIGNED), 0, 15, 16, 32, total_length, pc, & fields->f_imm);
+ break;
+ case LM32_OPERAND_HI16 :
+ length = extract_normal (cd, ex_info, insn_value, 0, 0, 15, 16, 32, total_length, pc, & fields->f_uimm);
+ break;
+ case LM32_OPERAND_IMM :
+ length = extract_normal (cd, ex_info, insn_value, 0|(1<<CGEN_IFLD_SIGNED), 0, 15, 16, 32, total_length, pc, & fields->f_imm);
+ break;
+ case LM32_OPERAND_LO16 :
+ length = extract_normal (cd, ex_info, insn_value, 0, 0, 15, 16, 32, total_length, pc, & fields->f_uimm);
+ break;
+ case LM32_OPERAND_R0 :
+ length = extract_normal (cd, ex_info, insn_value, 0, 0, 25, 5, 32, total_length, pc, & fields->f_r0);
+ break;
+ case LM32_OPERAND_R1 :
+ length = extract_normal (cd, ex_info, insn_value, 0, 0, 20, 5, 32, total_length, pc, & fields->f_r1);
+ break;
+ case LM32_OPERAND_R2 :
+ length = extract_normal (cd, ex_info, insn_value, 0, 0, 15, 5, 32, total_length, pc, & fields->f_r2);
+ break;
+ case LM32_OPERAND_SHIFT :
+ length = extract_normal (cd, ex_info, insn_value, 0, 0, 4, 5, 32, total_length, pc, & fields->f_shift);
+ break;
+ case LM32_OPERAND_UIMM :
+ length = extract_normal (cd, ex_info, insn_value, 0, 0, 15, 16, 32, total_length, pc, & fields->f_uimm);
+ break;
+ case LM32_OPERAND_USER :
+ length = extract_normal (cd, ex_info, insn_value, 0, 0, 10, 11, 32, total_length, pc, & fields->f_user);
+ break;
+
+ default :
+ /* xgettext:c-format */
+ fprintf (stderr, _("Unrecognized field %d while decoding insn.\n"),
+ opindex);
+ abort ();
+ }
+
+ return length;
+}
+
+cgen_insert_fn * const lm32_cgen_insert_handlers[] =
+{
+ insert_insn_normal,
+};
+
+cgen_extract_fn * const lm32_cgen_extract_handlers[] =
+{
+ extract_insn_normal,
+};
+
+int lm32_cgen_get_int_operand (CGEN_CPU_DESC, int, const CGEN_FIELDS *);
+bfd_vma lm32_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
+lm32_cgen_get_int_operand (CGEN_CPU_DESC cd ATTRIBUTE_UNUSED,
+ int opindex,
+ const CGEN_FIELDS * fields)
+{
+ int value;
+
+ switch (opindex)
+ {
+ case LM32_OPERAND_BRANCH :
+ value = fields->f_branch;
+ break;
+ case LM32_OPERAND_CALL :
+ value = fields->f_call;
+ break;
+ case LM32_OPERAND_CSR :
+ value = fields->f_csr;
+ break;
+ case LM32_OPERAND_EXCEPTION :
+ value = fields->f_exception;
+ break;
+ case LM32_OPERAND_GOT16 :
+ value = fields->f_imm;
+ break;
+ case LM32_OPERAND_GOTOFFHI16 :
+ value = fields->f_imm;
+ break;
+ case LM32_OPERAND_GOTOFFLO16 :
+ value = fields->f_imm;
+ break;
+ case LM32_OPERAND_GP16 :
+ value = fields->f_imm;
+ break;
+ case LM32_OPERAND_HI16 :
+ value = fields->f_uimm;
+ break;
+ case LM32_OPERAND_IMM :
+ value = fields->f_imm;
+ break;
+ case LM32_OPERAND_LO16 :
+ value = fields->f_uimm;
+ break;
+ case LM32_OPERAND_R0 :
+ value = fields->f_r0;
+ break;
+ case LM32_OPERAND_R1 :
+ value = fields->f_r1;
+ break;
+ case LM32_OPERAND_R2 :
+ value = fields->f_r2;
+ break;
+ case LM32_OPERAND_SHIFT :
+ value = fields->f_shift;
+ break;
+ case LM32_OPERAND_UIMM :
+ value = fields->f_uimm;
+ break;
+ case LM32_OPERAND_USER :
+ value = fields->f_user;
+ break;
+
+ default :
+ /* xgettext:c-format */
+ fprintf (stderr, _("Unrecognized field %d while getting int operand.\n"),
+ opindex);
+ abort ();
+ }
+
+ return value;
+}
+
+bfd_vma
+lm32_cgen_get_vma_operand (CGEN_CPU_DESC cd ATTRIBUTE_UNUSED,
+ int opindex,
+ const CGEN_FIELDS * fields)
+{
+ bfd_vma value;
+
+ switch (opindex)
+ {
+ case LM32_OPERAND_BRANCH :
+ value = fields->f_branch;
+ break;
+ case LM32_OPERAND_CALL :
+ value = fields->f_call;
+ break;
+ case LM32_OPERAND_CSR :
+ value = fields->f_csr;
+ break;
+ case LM32_OPERAND_EXCEPTION :
+ value = fields->f_exception;
+ break;
+ case LM32_OPERAND_GOT16 :
+ value = fields->f_imm;
+ break;
+ case LM32_OPERAND_GOTOFFHI16 :
+ value = fields->f_imm;
+ break;
+ case LM32_OPERAND_GOTOFFLO16 :
+ value = fields->f_imm;
+ break;
+ case LM32_OPERAND_GP16 :
+ value = fields->f_imm;
+ break;
+ case LM32_OPERAND_HI16 :
+ value = fields->f_uimm;
+ break;
+ case LM32_OPERAND_IMM :
+ value = fields->f_imm;
+ break;
+ case LM32_OPERAND_LO16 :
+ value = fields->f_uimm;
+ break;
+ case LM32_OPERAND_R0 :
+ value = fields->f_r0;
+ break;
+ case LM32_OPERAND_R1 :
+ value = fields->f_r1;
+ break;
+ case LM32_OPERAND_R2 :
+ value = fields->f_r2;
+ break;
+ case LM32_OPERAND_SHIFT :
+ value = fields->f_shift;
+ break;
+ case LM32_OPERAND_UIMM :
+ value = fields->f_uimm;
+ break;
+ case LM32_OPERAND_USER :
+ value = fields->f_user;
+ break;
+
+ default :
+ /* xgettext:c-format */
+ fprintf (stderr, _("Unrecognized field %d while getting vma operand.\n"),
+ opindex);
+ abort ();
+ }
+
+ return value;
+}
+
+void lm32_cgen_set_int_operand (CGEN_CPU_DESC, int, CGEN_FIELDS *, int);
+void lm32_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
+lm32_cgen_set_int_operand (CGEN_CPU_DESC cd ATTRIBUTE_UNUSED,
+ int opindex,
+ CGEN_FIELDS * fields,
+ int value)
+{
+ switch (opindex)
+ {
+ case LM32_OPERAND_BRANCH :
+ fields->f_branch = value;
+ break;
+ case LM32_OPERAND_CALL :
+ fields->f_call = value;
+ break;
+ case LM32_OPERAND_CSR :
+ fields->f_csr = value;
+ break;
+ case LM32_OPERAND_EXCEPTION :
+ fields->f_exception = value;
+ break;
+ case LM32_OPERAND_GOT16 :
+ fields->f_imm = value;
+ break;
+ case LM32_OPERAND_GOTOFFHI16 :
+ fields->f_imm = value;
+ break;
+ case LM32_OPERAND_GOTOFFLO16 :
+ fields->f_imm = value;
+ break;
+ case LM32_OPERAND_GP16 :
+ fields->f_imm = value;
+ break;
+ case LM32_OPERAND_HI16 :
+ fields->f_uimm = value;
+ break;
+ case LM32_OPERAND_IMM :
+ fields->f_imm = value;
+ break;
+ case LM32_OPERAND_LO16 :
+ fields->f_uimm = value;
+ break;
+ case LM32_OPERAND_R0 :
+ fields->f_r0 = value;
+ break;
+ case LM32_OPERAND_R1 :
+ fields->f_r1 = value;
+ break;
+ case LM32_OPERAND_R2 :
+ fields->f_r2 = value;
+ break;
+ case LM32_OPERAND_SHIFT :
+ fields->f_shift = value;
+ break;
+ case LM32_OPERAND_UIMM :
+ fields->f_uimm = value;
+ break;
+ case LM32_OPERAND_USER :
+ fields->f_user = value;
+ break;
+
+ default :
+ /* xgettext:c-format */
+ fprintf (stderr, _("Unrecognized field %d while setting int operand.\n"),
+ opindex);
+ abort ();
+ }
+}
+
+void
+lm32_cgen_set_vma_operand (CGEN_CPU_DESC cd ATTRIBUTE_UNUSED,
+ int opindex,
+ CGEN_FIELDS * fields,
+ bfd_vma value)
+{
+ switch (opindex)
+ {
+ case LM32_OPERAND_BRANCH :
+ fields->f_branch = value;
+ break;
+ case LM32_OPERAND_CALL :
+ fields->f_call = value;
+ break;
+ case LM32_OPERAND_CSR :
+ fields->f_csr = value;
+ break;
+ case LM32_OPERAND_EXCEPTION :
+ fields->f_exception = value;
+ break;
+ case LM32_OPERAND_GOT16 :
+ fields->f_imm = value;
+ break;
+ case LM32_OPERAND_GOTOFFHI16 :
+ fields->f_imm = value;
+ break;
+ case LM32_OPERAND_GOTOFFLO16 :
+ fields->f_imm = value;
+ break;
+ case LM32_OPERAND_GP16 :
+ fields->f_imm = value;
+ break;
+ case LM32_OPERAND_HI16 :
+ fields->f_uimm = value;
+ break;
+ case LM32_OPERAND_IMM :
+ fields->f_imm = value;
+ break;
+ case LM32_OPERAND_LO16 :
+ fields->f_uimm = value;
+ break;
+ case LM32_OPERAND_R0 :
+ fields->f_r0 = value;
+ break;
+ case LM32_OPERAND_R1 :
+ fields->f_r1 = value;
+ break;
+ case LM32_OPERAND_R2 :
+ fields->f_r2 = value;
+ break;
+ case LM32_OPERAND_SHIFT :
+ fields->f_shift = value;
+ break;
+ case LM32_OPERAND_UIMM :
+ fields->f_uimm = value;
+ break;
+ case LM32_OPERAND_USER :
+ fields->f_user = value;
+ break;
+
+ default :
+ /* xgettext:c-format */
+ fprintf (stderr, _("Unrecognized field %d while setting vma operand.\n"),
+ opindex);
+ abort ();
+ }
+}
+
+/* Function to call before using the instruction builder tables. */
+
+void
+lm32_cgen_init_ibld_table (CGEN_CPU_DESC cd)
+{
+ cd->insert_handlers = & lm32_cgen_insert_handlers[0];
+ cd->extract_handlers = & lm32_cgen_extract_handlers[0];
+
+ cd->insert_operand = lm32_cgen_insert_operand;
+ cd->extract_operand = lm32_cgen_extract_operand;
+
+ cd->get_int_operand = lm32_cgen_get_int_operand;
+ cd->set_int_operand = lm32_cgen_set_int_operand;
+ cd->get_vma_operand = lm32_cgen_get_vma_operand;
+ cd->set_vma_operand = lm32_cgen_set_vma_operand;
+}
projects / msp430-binutils.git / blobdiff