/* Lattice Mico32 opcode support. -*- C -*-
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/* Lattice Mico32 opcode support. -*- C -*-
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Copyright 2008, 2009 Free Software Foundation, Inc.
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Copyright 2008, 2009 Free Software Foundation, Inc.
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Contributed by Jon Beniston
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Contributed by Jon Beniston
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This file is part of the GNU Binutils.
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This file is part of the GNU Binutils.
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This program is free software; you can redistribute it and/or modify
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This program 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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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 3 of the License, or
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the Free Software Foundation; either version 3 of the License, or
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(at your option) any later version.
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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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
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along with this program; if not, write to the Free Software
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Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston,
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Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston,
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MA 02110-1301, USA. */
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MA 02110-1301, USA. */
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/* -- opc.h */
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/* -- opc.h */
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/* Allows reason codes to be output when assembler errors occur. */
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/* Allows reason codes to be output when assembler errors occur. */
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#define CGEN_VERBOSE_ASSEMBLER_ERRORS
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#define CGEN_VERBOSE_ASSEMBLER_ERRORS
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#define CGEN_DIS_HASH_SIZE 64
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#define CGEN_DIS_HASH_SIZE 64
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#define CGEN_DIS_HASH(buf,value) ((value >> 26) & 0x3f)
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#define CGEN_DIS_HASH(buf,value) ((value >> 26) & 0x3f)
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/* -- asm.c */
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/* -- asm.c */
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/* Handle signed/unsigned literal. */
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/* Handle signed/unsigned literal. */
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static const char *
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static const char *
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parse_imm (CGEN_CPU_DESC cd,
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parse_imm (CGEN_CPU_DESC cd,
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const char **strp,
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const char **strp,
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int opindex,
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int opindex,
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unsigned long *valuep)
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unsigned long *valuep)
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{
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{
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const char *errmsg;
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const char *errmsg;
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signed long value;
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signed long value;
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errmsg = cgen_parse_signed_integer (cd, strp, opindex, & value);
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errmsg = cgen_parse_signed_integer (cd, strp, opindex, & value);
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if (errmsg == NULL)
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if (errmsg == NULL)
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{
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{
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unsigned long x = value & 0xFFFF0000;
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unsigned long x = value & 0xFFFF0000;
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if (x != 0 && x != 0xFFFF0000)
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if (x != 0 && x != 0xFFFF0000)
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errmsg = _("immediate value out of range");
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errmsg = _("immediate value out of range");
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else
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else
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*valuep = (value & 0xFFFF);
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*valuep = (value & 0xFFFF);
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}
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}
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return errmsg;
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return errmsg;
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}
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}
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/* Handle hi() */
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/* Handle hi() */
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static const char *
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static const char *
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parse_hi16 (CGEN_CPU_DESC cd,
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parse_hi16 (CGEN_CPU_DESC cd,
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const char **strp,
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const char **strp,
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int opindex,
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int opindex,
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unsigned long *valuep)
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unsigned long *valuep)
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{
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{
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if (strncasecmp (*strp, "hi(", 3) == 0)
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if (strncasecmp (*strp, "hi(", 3) == 0)
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{
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{
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enum cgen_parse_operand_result result_type;
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enum cgen_parse_operand_result result_type;
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bfd_vma value;
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bfd_vma value;
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const char *errmsg;
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const char *errmsg;
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*strp += 3;
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*strp += 3;
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errmsg = cgen_parse_address (cd, strp, opindex, BFD_RELOC_HI16,
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errmsg = cgen_parse_address (cd, strp, opindex, BFD_RELOC_HI16,
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&result_type, &value);
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&result_type, &value);
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if (**strp != ')')
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if (**strp != ')')
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return _("missing `)'");
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return _("missing `)'");
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++*strp;
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++*strp;
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if (errmsg == NULL
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if (errmsg == NULL
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&& result_type == CGEN_PARSE_OPERAND_RESULT_NUMBER)
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&& result_type == CGEN_PARSE_OPERAND_RESULT_NUMBER)
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value = (value >> 16) & 0xffff;
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value = (value >> 16) & 0xffff;
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*valuep = value;
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*valuep = value;
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return errmsg;
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return errmsg;
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}
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}
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return parse_imm (cd, strp, opindex, valuep);
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return parse_imm (cd, strp, opindex, valuep);
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}
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}
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/* Handle lo() */
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/* Handle lo() */
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static const char *
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static const char *
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parse_lo16 (CGEN_CPU_DESC cd,
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parse_lo16 (CGEN_CPU_DESC cd,
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const char **strp,
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const char **strp,
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int opindex,
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int opindex,
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unsigned long *valuep)
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unsigned long *valuep)
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{
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{
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if (strncasecmp (*strp, "lo(", 3) == 0)
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if (strncasecmp (*strp, "lo(", 3) == 0)
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{
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{
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const char *errmsg;
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const char *errmsg;
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enum cgen_parse_operand_result result_type;
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enum cgen_parse_operand_result result_type;
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bfd_vma value;
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bfd_vma value;
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*strp += 3;
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*strp += 3;
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errmsg = cgen_parse_address (cd, strp, opindex, BFD_RELOC_LO16,
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errmsg = cgen_parse_address (cd, strp, opindex, BFD_RELOC_LO16,
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&result_type, &value);
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&result_type, &value);
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if (**strp != ')')
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if (**strp != ')')
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return _("missing `)'");
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return _("missing `)'");
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++*strp;
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++*strp;
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if (errmsg == NULL
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if (errmsg == NULL
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&& result_type == CGEN_PARSE_OPERAND_RESULT_NUMBER)
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&& result_type == CGEN_PARSE_OPERAND_RESULT_NUMBER)
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value &= 0xffff;
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value &= 0xffff;
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*valuep = value;
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*valuep = value;
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return errmsg;
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return errmsg;
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}
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}
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return parse_imm (cd, strp, opindex, valuep);
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return parse_imm (cd, strp, opindex, valuep);
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}
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}
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/* Handle gp() */
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/* Handle gp() */
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static const char *
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static const char *
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parse_gp16 (CGEN_CPU_DESC cd,
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parse_gp16 (CGEN_CPU_DESC cd,
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const char **strp,
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const char **strp,
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int opindex,
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int opindex,
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long *valuep)
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long *valuep)
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{
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{
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if (strncasecmp (*strp, "gp(", 3) == 0)
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if (strncasecmp (*strp, "gp(", 3) == 0)
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{
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{
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const char *errmsg;
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const char *errmsg;
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enum cgen_parse_operand_result result_type;
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enum cgen_parse_operand_result result_type;
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bfd_vma value;
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bfd_vma value;
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*strp += 3;
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*strp += 3;
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errmsg = cgen_parse_address (cd, strp, opindex, BFD_RELOC_GPREL16,
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errmsg = cgen_parse_address (cd, strp, opindex, BFD_RELOC_GPREL16,
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& result_type, & value);
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& result_type, & value);
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if (**strp != ')')
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if (**strp != ')')
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return _("missing `)'");
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return _("missing `)'");
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++*strp;
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++*strp;
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if (errmsg == NULL
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if (errmsg == NULL
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&& result_type == CGEN_PARSE_OPERAND_RESULT_NUMBER)
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&& result_type == CGEN_PARSE_OPERAND_RESULT_NUMBER)
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value &= 0xffff;
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value &= 0xffff;
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*valuep = value;
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*valuep = value;
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return errmsg;
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return errmsg;
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}
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}
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return _("expecting gp relative address: gp(symbol)");
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return _("expecting gp relative address: gp(symbol)");
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}
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}
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/* Handle got() */
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/* Handle got() */
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static const char *
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static const char *
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parse_got16 (CGEN_CPU_DESC cd,
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parse_got16 (CGEN_CPU_DESC cd,
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const char **strp,
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const char **strp,
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int opindex,
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int opindex,
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long *valuep)
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long *valuep)
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{
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{
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if (strncasecmp (*strp, "got(", 4) == 0)
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if (strncasecmp (*strp, "got(", 4) == 0)
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{
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{
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const char *errmsg;
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const char *errmsg;
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enum cgen_parse_operand_result result_type;
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enum cgen_parse_operand_result result_type;
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bfd_vma value;
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bfd_vma value;
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*strp += 4;
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*strp += 4;
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errmsg = cgen_parse_address (cd, strp, opindex, BFD_RELOC_LM32_16_GOT,
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errmsg = cgen_parse_address (cd, strp, opindex, BFD_RELOC_LM32_16_GOT,
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& result_type, & value);
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& result_type, & value);
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if (**strp != ')')
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if (**strp != ')')
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return _("missing `)'");
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return _("missing `)'");
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++*strp;
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++*strp;
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if (errmsg == NULL
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if (errmsg == NULL
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&& result_type == CGEN_PARSE_OPERAND_RESULT_NUMBER)
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&& result_type == CGEN_PARSE_OPERAND_RESULT_NUMBER)
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value &= 0xffff;
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value &= 0xffff;
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*valuep = value;
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*valuep = value;
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return errmsg;
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return errmsg;
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}
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}
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return _("expecting got relative address: got(symbol)");
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return _("expecting got relative address: got(symbol)");
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}
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}
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/* Handle gotoffhi16() */
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/* Handle gotoffhi16() */
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static const char *
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static const char *
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parse_gotoff_hi16 (CGEN_CPU_DESC cd,
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parse_gotoff_hi16 (CGEN_CPU_DESC cd,
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const char **strp,
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const char **strp,
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int opindex,
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int opindex,
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long *valuep)
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long *valuep)
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{
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{
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if (strncasecmp (*strp, "gotoffhi16(", 11) == 0)
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if (strncasecmp (*strp, "gotoffhi16(", 11) == 0)
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{
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{
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const char *errmsg;
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const char *errmsg;
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enum cgen_parse_operand_result result_type;
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enum cgen_parse_operand_result result_type;
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bfd_vma value;
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bfd_vma value;
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*strp += 11;
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*strp += 11;
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errmsg = cgen_parse_address (cd, strp, opindex, BFD_RELOC_LM32_GOTOFF_HI16,
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errmsg = cgen_parse_address (cd, strp, opindex, BFD_RELOC_LM32_GOTOFF_HI16,
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& result_type, & value);
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& result_type, & value);
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if (**strp != ')')
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if (**strp != ')')
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return _("missing `)'");
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return _("missing `)'");
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++*strp;
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++*strp;
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if (errmsg == NULL
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if (errmsg == NULL
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&& result_type == CGEN_PARSE_OPERAND_RESULT_NUMBER)
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&& result_type == CGEN_PARSE_OPERAND_RESULT_NUMBER)
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value &= 0xffff;
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value &= 0xffff;
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*valuep = value;
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*valuep = value;
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return errmsg;
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return errmsg;
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}
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}
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return _("expecting got relative address: gotoffhi16(symbol)");
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return _("expecting got relative address: gotoffhi16(symbol)");
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}
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}
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/* Handle gotofflo16() */
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/* Handle gotofflo16() */
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static const char *
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static const char *
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parse_gotoff_lo16 (CGEN_CPU_DESC cd,
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parse_gotoff_lo16 (CGEN_CPU_DESC cd,
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const char **strp,
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const char **strp,
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int opindex,
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int opindex,
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long *valuep)
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long *valuep)
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{
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{
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if (strncasecmp (*strp, "gotofflo16(", 11) == 0)
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if (strncasecmp (*strp, "gotofflo16(", 11) == 0)
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{
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{
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const char *errmsg;
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const char *errmsg;
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enum cgen_parse_operand_result result_type;
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enum cgen_parse_operand_result result_type;
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bfd_vma value;
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bfd_vma value;
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*strp += 11;
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*strp += 11;
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errmsg = cgen_parse_address (cd, strp, opindex, BFD_RELOC_LM32_GOTOFF_LO16,
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errmsg = cgen_parse_address (cd, strp, opindex, BFD_RELOC_LM32_GOTOFF_LO16,
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&result_type, &value);
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&result_type, &value);
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if (**strp != ')')
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if (**strp != ')')
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return _("missing `)'");
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return _("missing `)'");
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++*strp;
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++*strp;
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if (errmsg == NULL
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if (errmsg == NULL
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&& result_type == CGEN_PARSE_OPERAND_RESULT_NUMBER)
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&& result_type == CGEN_PARSE_OPERAND_RESULT_NUMBER)
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value &= 0xffff;
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value &= 0xffff;
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*valuep = value;
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*valuep = value;
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return errmsg;
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return errmsg;
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}
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}
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return _("expecting got relative address: gotofflo16(symbol)");
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return _("expecting got relative address: gotofflo16(symbol)");
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}
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}
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