422 lines
12 KiB
Text
422 lines
12 KiB
Text
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/* OpenRISC 1000 opcode support. -*- C -*-
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Copyright 2000-2014 Free Software Foundation, Inc.
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Originally ontributed for OR32 by Red Hat Inc;
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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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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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(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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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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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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along with this program; if not, see <http://www.gnu.org/licenses/>. */
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/* This file is an addendum to or1k.cpu. Heavy use of C code isn't
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appropriate in .cpu files, so it resides here. This especially applies
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to assembly/disassembly where parsing/printing can be quite involved.
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Such things aren't really part of the specification of the cpu, per se,
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so .cpu files provide the general framework and .opc files handle the
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nitty-gritty details as necessary.
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Each section is delimited with start and end markers.
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<arch>-opc.h additions use: "-- opc.h"
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<arch>-opc.c additions use: "-- opc.c"
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<arch>-asm.c additions use: "-- asm.c"
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<arch>-dis.c additions use: "-- dis.c"
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<arch>-ibd.h additions use: "-- ibd.h" */
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/* -- opc.h */
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#undef CGEN_DIS_HASH_SIZE
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#define CGEN_DIS_HASH_SIZE 256
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#undef CGEN_DIS_HASH
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#define CGEN_DIS_HASH(buffer, value) (((unsigned char *) (buffer))[0] >> 2)
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/* -- */
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/* -- opc.c */
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/* -- */
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/* -- asm.c */
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static const char * MISSING_CLOSING_PARENTHESIS = N_("missing `)'");
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#define CGEN_VERBOSE_ASSEMBLER_ERRORS
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static const char *
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parse_disp26 (CGEN_CPU_DESC cd,
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const char ** strp,
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int opindex,
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int opinfo,
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enum cgen_parse_operand_result * resultp,
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bfd_vma * valuep)
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{
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const char *errmsg = NULL;
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enum cgen_parse_operand_result result_type;
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if (strncasecmp (*strp, "plt(", 4) == 0)
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{
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bfd_vma value;
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*strp += 4;
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errmsg = cgen_parse_address (cd, strp, opindex, BFD_RELOC_OR1K_PLT26,
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& result_type, & value);
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if (**strp != ')')
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return MISSING_CLOSING_PARENTHESIS;
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++*strp;
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if (errmsg == NULL
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&& result_type == CGEN_PARSE_OPERAND_RESULT_NUMBER)
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value = (value >> 2) & 0xffff;
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*valuep = value;
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return errmsg;
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}
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return cgen_parse_address (cd, strp, opindex, opinfo, resultp, valuep);
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}
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static const char *
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parse_simm16 (CGEN_CPU_DESC cd, const char ** strp, int opindex, long * valuep)
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{
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const char *errmsg;
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enum cgen_parse_operand_result result_type;
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long ret;
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if (**strp == '#')
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++*strp;
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if (strncasecmp (*strp, "hi(", 3) == 0)
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{
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bfd_vma value;
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*strp += 3;
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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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if (**strp != ')')
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errmsg = MISSING_CLOSING_PARENTHESIS;
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++*strp;
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ret = value;
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if (errmsg == NULL
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&& result_type == CGEN_PARSE_OPERAND_RESULT_NUMBER)
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{
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ret >>= 16;
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ret &= 0xffff;
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ret = (ret ^ 0x8000) - 0x8000;
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}
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}
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else if (strncasecmp (*strp, "lo(", 3) == 0)
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{
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bfd_vma value;
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*strp += 3;
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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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if (**strp != ')')
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return MISSING_CLOSING_PARENTHESIS;
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++*strp;
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ret = value;
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if (result_type == CGEN_PARSE_OPERAND_RESULT_NUMBER)
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{
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ret &= 0xffff;
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ret = (ret ^ 0x8000) - 0x8000;
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}
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}
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else if (strncasecmp (*strp, "got(", 4) == 0)
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{
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bfd_vma value;
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*strp += 4;
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errmsg = cgen_parse_address (cd, strp, opindex, BFD_RELOC_OR1K_GOT16,
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& result_type, & value);
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if (**strp != ')')
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return MISSING_CLOSING_PARENTHESIS;
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++*strp;
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if (errmsg == NULL
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&& result_type == CGEN_PARSE_OPERAND_RESULT_NUMBER)
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value &= 0xffff;
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*valuep = value;
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return errmsg;
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}
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else if (strncasecmp (*strp, "gotpchi(", 8) == 0)
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{
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bfd_vma value;
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*strp += 8;
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errmsg = cgen_parse_address (cd, strp, opindex,
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BFD_RELOC_OR1K_GOTPC_HI16,
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& result_type, & value);
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if (**strp != ')')
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return MISSING_CLOSING_PARENTHESIS;
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++*strp;
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if (errmsg == NULL
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&& result_type == CGEN_PARSE_OPERAND_RESULT_NUMBER)
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value = (value >> 16) & 0xffff;
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*valuep = value;
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return errmsg;
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}
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else if (strncasecmp (*strp, "gotpclo(", 8) == 0)
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{
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bfd_vma value;
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*strp += 8;
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errmsg = cgen_parse_address (cd, strp, opindex,
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BFD_RELOC_OR1K_GOTPC_LO16,
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&result_type, &value);
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if (**strp != ')')
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return MISSING_CLOSING_PARENTHESIS;
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++*strp;
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if (errmsg == NULL
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&& result_type == CGEN_PARSE_OPERAND_RESULT_NUMBER)
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value &= 0xffff;
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*valuep = value;
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return errmsg;
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}
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else if (strncasecmp (*strp, "gotoffhi(", 9) == 0)
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{
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bfd_vma value;
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*strp += 9;
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errmsg = cgen_parse_address (cd, strp, opindex,
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BFD_RELOC_OR1K_GOTOFF_HI16,
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& result_type, & value);
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if (**strp != ')')
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return MISSING_CLOSING_PARENTHESIS;
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++*strp;
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if (errmsg == NULL
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&& result_type == CGEN_PARSE_OPERAND_RESULT_NUMBER)
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value = (value >> 16) & 0xffff;
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*valuep = value;
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return errmsg;
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}
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else if (strncasecmp (*strp, "gotofflo(", 9) == 0)
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{
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bfd_vma value;
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*strp += 9;
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errmsg = cgen_parse_address (cd, strp, opindex,
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BFD_RELOC_OR1K_GOTOFF_LO16,
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&result_type, &value);
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if (**strp != ')')
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return MISSING_CLOSING_PARENTHESIS;
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++*strp;
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if (errmsg == NULL
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&& result_type == CGEN_PARSE_OPERAND_RESULT_NUMBER)
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value &= 0xffff;
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*valuep = value;
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return errmsg;
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}
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else if (strncasecmp (*strp, "tlsgdhi(", 8) == 0)
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{
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bfd_vma value;
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*strp += 8;
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errmsg = cgen_parse_address (cd, strp, opindex,
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BFD_RELOC_OR1K_TLS_GD_HI16,
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& result_type, & value);
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if (**strp != ')')
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return MISSING_CLOSING_PARENTHESIS;
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++*strp;
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if (errmsg == NULL
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&& result_type == CGEN_PARSE_OPERAND_RESULT_NUMBER)
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value = (value >> 16) & 0xffff;
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*valuep = value;
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return errmsg;
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}
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else if (strncasecmp (*strp, "tlsgdlo(", 8) == 0)
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{
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bfd_vma value;
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*strp += 8;
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errmsg = cgen_parse_address (cd, strp, opindex,
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BFD_RELOC_OR1K_TLS_GD_LO16,
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&result_type, &value);
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if (**strp != ')')
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return MISSING_CLOSING_PARENTHESIS;
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++*strp;
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if (errmsg == NULL
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&& result_type == CGEN_PARSE_OPERAND_RESULT_NUMBER)
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value &= 0xffff;
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*valuep = value;
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return errmsg;
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}
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else if (strncasecmp (*strp, "tlsldmhi(", 9) == 0)
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{
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bfd_vma value;
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*strp += 9;
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errmsg = cgen_parse_address (cd, strp, opindex,
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BFD_RELOC_OR1K_TLS_LDM_HI16,
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& result_type, & value);
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if (**strp != ')')
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return MISSING_CLOSING_PARENTHESIS;
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++*strp;
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if (errmsg == NULL
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&& result_type == CGEN_PARSE_OPERAND_RESULT_NUMBER)
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value = (value >> 16) & 0xffff;
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*valuep = value;
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return errmsg;
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}
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else if (strncasecmp (*strp, "tlsldmlo(", 9) == 0)
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{
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bfd_vma value;
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*strp += 9;
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errmsg = cgen_parse_address (cd, strp, opindex,
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BFD_RELOC_OR1K_TLS_LDM_LO16,
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&result_type, &value);
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if (**strp != ')')
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return MISSING_CLOSING_PARENTHESIS;
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++*strp;
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if (errmsg == NULL
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&& result_type == CGEN_PARSE_OPERAND_RESULT_NUMBER)
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value &= 0xffff;
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*valuep = value;
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return errmsg;
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}
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else if (strncasecmp (*strp, "dtpoffhi(", 9) == 0)
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{
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bfd_vma value;
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*strp += 9;
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errmsg = cgen_parse_address (cd, strp, opindex,
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BFD_RELOC_OR1K_TLS_LDO_HI16,
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& result_type, & value);
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if (**strp != ')')
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return MISSING_CLOSING_PARENTHESIS;
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++*strp;
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if (errmsg == NULL
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&& result_type == CGEN_PARSE_OPERAND_RESULT_NUMBER)
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value = (value >> 16) & 0xffff;
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*valuep = value;
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return errmsg;
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}
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else if (strncasecmp (*strp, "dtpofflo(", 9) == 0)
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{
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bfd_vma value;
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*strp += 9;
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errmsg = cgen_parse_address (cd, strp, opindex,
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BFD_RELOC_OR1K_TLS_LDO_LO16,
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&result_type, &value);
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if (**strp != ')')
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return MISSING_CLOSING_PARENTHESIS;
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++*strp;
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if (errmsg == NULL
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&& result_type == CGEN_PARSE_OPERAND_RESULT_NUMBER)
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value &= 0xffff;
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*valuep = value;
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return errmsg;
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}
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else if (strncasecmp (*strp, "gottpoffhi(", 11) == 0)
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{
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bfd_vma value;
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*strp += 11;
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errmsg = cgen_parse_address (cd, strp, opindex,
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BFD_RELOC_OR1K_TLS_IE_HI16,
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& result_type, & value);
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if (**strp != ')')
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return MISSING_CLOSING_PARENTHESIS;
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++*strp;
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if (errmsg == NULL
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&& result_type == CGEN_PARSE_OPERAND_RESULT_NUMBER)
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value = (value >> 16) & 0xffff;
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*valuep = value;
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return errmsg;
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}
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else if (strncasecmp (*strp, "gottpofflo(", 11) == 0)
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{
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bfd_vma value;
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*strp += 11;
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errmsg = cgen_parse_address (cd, strp, opindex,
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BFD_RELOC_OR1K_TLS_IE_LO16,
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&result_type, &value);
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if (**strp != ')')
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return MISSING_CLOSING_PARENTHESIS;
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++*strp;
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if (errmsg == NULL
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&& result_type == CGEN_PARSE_OPERAND_RESULT_NUMBER)
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value &= 0xffff;
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*valuep = value;
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return errmsg;
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}
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else if (strncasecmp (*strp, "tpoffhi(", 8) == 0)
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{
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bfd_vma value;
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*strp += 8;
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errmsg = cgen_parse_address (cd, strp, opindex,
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BFD_RELOC_OR1K_TLS_LE_HI16,
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& result_type, & value);
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if (**strp != ')')
|
||
|
|
return MISSING_CLOSING_PARENTHESIS;
|
||
|
|
++*strp;
|
||
|
|
if (errmsg == NULL
|
||
|
|
&& result_type == CGEN_PARSE_OPERAND_RESULT_NUMBER)
|
||
|
|
value = (value >> 16) & 0xffff;
|
||
|
|
*valuep = value;
|
||
|
|
return errmsg;
|
||
|
|
}
|
||
|
|
else if (strncasecmp (*strp, "tpofflo(", 8) == 0)
|
||
|
|
{
|
||
|
|
bfd_vma value;
|
||
|
|
|
||
|
|
*strp += 8;
|
||
|
|
errmsg = cgen_parse_address (cd, strp, opindex,
|
||
|
|
BFD_RELOC_OR1K_TLS_LE_LO16,
|
||
|
|
&result_type, &value);
|
||
|
|
if (**strp != ')')
|
||
|
|
return MISSING_CLOSING_PARENTHESIS;
|
||
|
|
++*strp;
|
||
|
|
if (errmsg == NULL
|
||
|
|
&& result_type == CGEN_PARSE_OPERAND_RESULT_NUMBER)
|
||
|
|
value &= 0xffff;
|
||
|
|
*valuep = value;
|
||
|
|
return errmsg;
|
||
|
|
}
|
||
|
|
else
|
||
|
|
{
|
||
|
|
long value;
|
||
|
|
errmsg = cgen_parse_signed_integer (cd, strp, opindex, &value);
|
||
|
|
ret = value;
|
||
|
|
}
|
||
|
|
|
||
|
|
if (errmsg == NULL)
|
||
|
|
*valuep = ret;
|
||
|
|
|
||
|
|
return errmsg;
|
||
|
|
}
|
||
|
|
|
||
|
|
static const char *
|
||
|
|
parse_uimm16 (CGEN_CPU_DESC cd, const char ** strp, int opindex, unsigned long * valuep)
|
||
|
|
{
|
||
|
|
const char *errmsg = parse_simm16(cd, strp, opindex, (long *) valuep);
|
||
|
|
|
||
|
|
if (errmsg == NULL)
|
||
|
|
*valuep &= 0xffff;
|
||
|
|
return errmsg;
|
||
|
|
}
|
||
|
|
|
||
|
|
/* -- */
|
||
|
|
|
||
|
|
/* -- ibd.h */
|
||
|
|
|
||
|
|
/* -- */
|