1999-05-03 09:29:11 +02:00
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/* tc-h8500.c -- Assemble code for the Hitachi H8/500
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2000-06-24 10:07:01 +02:00
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Copyright (C) 1993, 94, 95, 98, 2000 Free Software Foundation.
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1999-05-03 09:29:11 +02:00
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This file is part of GAS, the GNU Assembler.
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GAS 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 2, or (at your option)
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any later version.
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GAS 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 GAS; see the file COPYING. If not, write to the Free
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Software Foundation, 59 Temple Place - Suite 330, Boston, MA
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02111-1307, USA. */
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/*
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Written By Steve Chamberlain
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sac@cygnus.com
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*/
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#include <stdio.h>
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#include "as.h"
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#include "bfd.h"
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#include "subsegs.h"
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#define DEFINE_TABLE
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#define ASSEMBLER_TABLE
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#include "opcodes/h8500-opc.h"
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#include <ctype.h>
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const char comment_chars[] = "!";
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const char line_separator_chars[] = ";";
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const char line_comment_chars[] = "!#";
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/* This table describes all the machine specific pseudo-ops the assembler
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has to support. The fields are:
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pseudo-op name without dot
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function to call to execute this pseudo-op
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Integer arg to pass to the function
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*/
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void cons ();
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const pseudo_typeS md_pseudo_table[] =
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{
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{"int", cons, 2},
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{"data.b", cons, 1},
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{"data.w", cons, 2},
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{"data.l", cons, 4},
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{"form", listing_psize, 0},
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{"heading", listing_title, 0},
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{"import", s_ignore, 0},
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{"page", listing_eject, 0},
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{"program", s_ignore, 0},
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{0, 0, 0}
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};
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const int md_reloc_size;
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const char EXP_CHARS[] = "eE";
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/* Chars that mean this number is a floating point constant */
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/* As in 0f12.456 */
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/* or 0d1.2345e12 */
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const char FLT_CHARS[] = "rRsSfFdDxXpP";
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#define C(a,b) ENCODE_RELAX(a,b)
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#define ENCODE_RELAX(what,length) (((what) << 2) + (length))
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#define GET_WHAT(x) ((x>>2))
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#define BYTE_DISP 1
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#define WORD_DISP 2
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#define UNDEF_BYTE_DISP 0
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#define UNDEF_WORD_DISP 3
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#define BRANCH 1
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#define SCB_F 2
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#define SCB_TST 3
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#define END 4
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#define BYTE_F 127
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#define BYTE_B -126
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#define WORD_F 32767
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#define WORD_B 32768
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relax_typeS md_relax_table[C (END, 0)];
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static struct hash_control *opcode_hash_control; /* Opcode mnemonics */
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/*
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This function is called once, at assembler startup time. This should
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2000-06-24 10:07:01 +02:00
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set up all the tables, etc. that the MD part of the assembler needs
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1999-05-03 09:29:11 +02:00
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*/
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void
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md_begin ()
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{
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h8500_opcode_info *opcode;
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char prev_buffer[100];
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int idx = 0;
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register relax_typeS *table;
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opcode_hash_control = hash_new ();
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prev_buffer[0] = 0;
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/* Insert unique names into hash table */
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for (opcode = h8500_table; opcode->name; opcode++)
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{
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if (idx != opcode->idx)
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{
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hash_insert (opcode_hash_control, opcode->name, (char *) opcode);
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idx++;
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}
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}
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/* Initialize the relax table. We use a local variable to avoid
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warnings about modifying a supposedly const data structure. */
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table = (relax_typeS *) md_relax_table;
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table[C (BRANCH, BYTE_DISP)].rlx_forward = BYTE_F;
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table[C (BRANCH, BYTE_DISP)].rlx_backward = BYTE_B;
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table[C (BRANCH, BYTE_DISP)].rlx_length = 2;
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table[C (BRANCH, BYTE_DISP)].rlx_more = C (BRANCH, WORD_DISP);
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table[C (BRANCH, WORD_DISP)].rlx_forward = WORD_F;
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table[C (BRANCH, WORD_DISP)].rlx_backward = WORD_B;
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table[C (BRANCH, WORD_DISP)].rlx_length = 3;
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table[C (BRANCH, WORD_DISP)].rlx_more = 0;
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table[C (SCB_F, BYTE_DISP)].rlx_forward = BYTE_F;
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table[C (SCB_F, BYTE_DISP)].rlx_backward = BYTE_B;
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table[C (SCB_F, BYTE_DISP)].rlx_length = 3;
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table[C (SCB_F, BYTE_DISP)].rlx_more = C (SCB_F, WORD_DISP);
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table[C (SCB_F, WORD_DISP)].rlx_forward = WORD_F;
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table[C (SCB_F, WORD_DISP)].rlx_backward = WORD_B;
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table[C (SCB_F, WORD_DISP)].rlx_length = 8;
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table[C (SCB_F, WORD_DISP)].rlx_more = 0;
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table[C (SCB_TST, BYTE_DISP)].rlx_forward = BYTE_F;
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table[C (SCB_TST, BYTE_DISP)].rlx_backward = BYTE_B;
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table[C (SCB_TST, BYTE_DISP)].rlx_length = 3;
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table[C (SCB_TST, BYTE_DISP)].rlx_more = C (SCB_TST, WORD_DISP);
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table[C (SCB_TST, WORD_DISP)].rlx_forward = WORD_F;
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table[C (SCB_TST, WORD_DISP)].rlx_backward = WORD_B;
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table[C (SCB_TST, WORD_DISP)].rlx_length = 10;
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table[C (SCB_TST, WORD_DISP)].rlx_more = 0;
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}
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static int rn; /* register number used by RN */
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static int rs; /* register number used by RS */
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static int rd; /* register number used by RD */
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static int crb; /* byte size cr */
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static int crw; /* word sized cr */
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static int cr; /* unknown size cr */
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static expressionS displacement;/* displacement expression */
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static int displacement_size; /* and size if given */
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static int immediate_inpage;
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static expressionS immediate; /* immediate expression */
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static int immediate_size; /* and size if given */
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static expressionS absolute; /* absolute expression */
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static int absolute_size; /* and size if given */
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typedef struct
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{
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int type;
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int reg;
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expressionS exp;
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int page;
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}
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h8500_operand_info;
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/* try and parse a reg name, returns number of chars consumed */
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static int
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parse_reg (src, mode, reg)
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char *src;
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int *mode;
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int *reg;
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{
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char *end;
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int len;
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/* Cribbed from get_symbol_end(). */
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if (!is_name_beginner (*src) || *src == '\001')
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return 0;
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end = src+1;
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while (is_part_of_name (*end) || *end == '\001')
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end++;
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len = end - src;
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if (len == 2 && src[0] == 'r')
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{
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if (src[1] >= '0' && src[1] <= '7')
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{
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*mode = RN;
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*reg = (src[1] - '0');
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return len;
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}
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}
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if (len == 2 && src[0] == 's' && src[1] == 'p')
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{
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*mode = RN;
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*reg = 7;
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return len;
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}
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if (len == 3 && src[0] == 'c' && src[1] == 'c' && src[2] == 'r')
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{
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*mode = CRB;
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*reg = 1;
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return len;
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}
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if (len == 2 && src[0] == 's' && src[1] == 'r')
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{
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*mode = CRW;
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*reg = 0;
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return len;
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}
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if (len == 2 && src[0] == 'b' && src[1] == 'r')
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{
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*mode = CRB;
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*reg = 3;
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return len;
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}
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if (len == 2 && src[0] == 'e' && src[1] == 'p')
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{
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*mode = CRB;
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*reg = 4;
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return len;
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}
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if (len == 2 && src[0] == 'd' && src[1] == 'p')
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{
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*mode = CRB;
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*reg = 5;
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return len;
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}
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if (len == 2 && src[0] == 't' && src[1] == 'p')
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{
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*mode = CRB;
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*reg = 7;
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return len;
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}
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if (len == 2 && src[0] == 'f' && src[1] == 'p')
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{
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*mode = RN;
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*reg = 6;
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return len;
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}
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return 0;
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}
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static
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char *
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parse_exp (s, op, page)
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char *s;
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expressionS *op;
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int *page;
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{
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char *save;
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char *new;
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save = input_line_pointer;
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*page = 0;
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if (s[0] == '%')
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{
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if (s[1] == 'p' && s[2] == 'a' && s[3] == 'g' && s[4] == 'e')
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{
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s += 5;
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*page = 'p';
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}
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if (s[1] == 'h' && s[2] == 'i' && s[3] == '1' && s[4] == '6')
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{
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s += 5;
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*page = 'h';
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}
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else if (s[1] == 'o' && s[2] == 'f' && s[3] == 'f')
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{
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s += 4;
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*page = 'o';
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}
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}
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input_line_pointer = s;
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expression (op);
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if (op->X_op == O_absent)
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as_bad (_("missing operand"));
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new = input_line_pointer;
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input_line_pointer = save;
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return new;
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}
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typedef enum
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{
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exp_signed, exp_unsigned, exp_sandu
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} sign_type;
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static char *
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skip_colonthing (sign, ptr, exp, def, size8, size16, size24)
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sign_type sign;
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char *ptr;
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h8500_operand_info *exp;
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int def;
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int size8;
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int size16;
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int size24;
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{
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ptr = parse_exp (ptr, &exp->exp, &exp->page);
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if (*ptr == ':')
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{
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ptr++;
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if (*ptr == '8')
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{
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ptr++;
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exp->type = size8;
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}
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else if (ptr[0] == '1' & ptr[1] == '6')
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{
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ptr += 2;
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exp->type = size16;
|
|
|
|
|
}
|
|
|
|
|
else if (ptr[0] == '2' & ptr[1] == '4')
|
|
|
|
|
{
|
|
|
|
|
if (!size24)
|
|
|
|
|
{
|
|
|
|
|
as_bad (_(":24 not valid for this opcode"));
|
|
|
|
|
}
|
|
|
|
|
ptr += 2;
|
|
|
|
|
exp->type = size24;
|
|
|
|
|
}
|
|
|
|
|
else
|
|
|
|
|
{
|
|
|
|
|
as_bad (_("expect :8,:16 or :24"));
|
|
|
|
|
exp->type = size16;
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
else
|
|
|
|
|
{
|
|
|
|
|
if (exp->page == 'p')
|
|
|
|
|
{
|
|
|
|
|
exp->type = IMM8;
|
|
|
|
|
}
|
|
|
|
|
else if (exp->page == 'h')
|
|
|
|
|
{
|
|
|
|
|
exp->type = IMM16;
|
|
|
|
|
}
|
|
|
|
|
else
|
|
|
|
|
{
|
|
|
|
|
/* Let's work out the size from the context */
|
|
|
|
|
int n = exp->exp.X_add_number;
|
|
|
|
|
if (size8
|
|
|
|
|
&& exp->exp.X_op == O_constant
|
|
|
|
|
&& ((sign == exp_signed && (n >= -128 && n <= 127))
|
|
|
|
|
|| (sign == exp_unsigned && (n >= 0 && (n <= 255)))
|
|
|
|
|
|| (sign == exp_sandu && (n >= -128 && (n <= 255)))))
|
|
|
|
|
{
|
|
|
|
|
exp->type = size8;
|
|
|
|
|
}
|
|
|
|
|
else
|
|
|
|
|
{
|
|
|
|
|
exp->type = def;
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
return ptr;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
static int
|
|
|
|
|
parse_reglist (src, op)
|
|
|
|
|
char *src;
|
|
|
|
|
h8500_operand_info *op;
|
|
|
|
|
{
|
|
|
|
|
int mode;
|
|
|
|
|
int rn;
|
|
|
|
|
int mask = 0;
|
|
|
|
|
int rm;
|
|
|
|
|
int idx = 1; /* skip ( */
|
|
|
|
|
|
|
|
|
|
while (src[idx] && src[idx] != ')')
|
|
|
|
|
{
|
|
|
|
|
int done = parse_reg (src + idx, &mode, &rn);
|
|
|
|
|
|
|
|
|
|
if (done)
|
|
|
|
|
{
|
|
|
|
|
idx += done;
|
|
|
|
|
mask |= 1 << rn;
|
|
|
|
|
}
|
|
|
|
|
else
|
|
|
|
|
{
|
|
|
|
|
as_bad (_("syntax error in reg list"));
|
|
|
|
|
return 0;
|
|
|
|
|
}
|
|
|
|
|
if (src[idx] == '-')
|
|
|
|
|
{
|
|
|
|
|
idx++;
|
|
|
|
|
done = parse_reg (src + idx, &mode, &rm);
|
|
|
|
|
if (done)
|
|
|
|
|
{
|
|
|
|
|
idx += done;
|
|
|
|
|
while (rn <= rm)
|
|
|
|
|
{
|
|
|
|
|
mask |= 1 << rn;
|
|
|
|
|
rn++;
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
else
|
|
|
|
|
{
|
|
|
|
|
as_bad (_("missing final register in range"));
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
if (src[idx] == ',')
|
|
|
|
|
idx++;
|
|
|
|
|
}
|
|
|
|
|
idx++;
|
|
|
|
|
op->exp.X_add_symbol = 0;
|
|
|
|
|
op->exp.X_op_symbol = 0;
|
|
|
|
|
op->exp.X_add_number = mask;
|
|
|
|
|
op->exp.X_op = O_constant;
|
|
|
|
|
op->exp.X_unsigned = 1;
|
|
|
|
|
op->type = IMM8;
|
|
|
|
|
return idx;
|
|
|
|
|
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/* The many forms of operand:
|
|
|
|
|
|
|
|
|
|
Rn Register direct
|
|
|
|
|
@Rn Register indirect
|
|
|
|
|
@(disp[:size], Rn) Register indirect with displacement
|
|
|
|
|
@Rn+
|
|
|
|
|
@-Rn
|
|
|
|
|
@aa[:size] absolute
|
|
|
|
|
#xx[:size] immediate data
|
|
|
|
|
|
|
|
|
|
*/
|
|
|
|
|
|
|
|
|
|
static void
|
|
|
|
|
get_operand (ptr, op, ispage)
|
|
|
|
|
char **ptr;
|
|
|
|
|
h8500_operand_info *op;
|
|
|
|
|
char ispage;
|
|
|
|
|
{
|
|
|
|
|
char *src = *ptr;
|
|
|
|
|
int mode;
|
|
|
|
|
unsigned int num;
|
|
|
|
|
unsigned int len;
|
|
|
|
|
op->page = 0;
|
|
|
|
|
if (src[0] == '(' && src[1] == 'r')
|
|
|
|
|
{
|
|
|
|
|
/* This is a register list */
|
|
|
|
|
*ptr = src + parse_reglist (src, op);
|
|
|
|
|
return;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
len = parse_reg (src, &op->type, &op->reg);
|
|
|
|
|
|
|
|
|
|
if (len)
|
|
|
|
|
{
|
|
|
|
|
*ptr = src + len;
|
|
|
|
|
return;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
if (*src == '@')
|
|
|
|
|
{
|
|
|
|
|
src++;
|
|
|
|
|
if (*src == '-')
|
|
|
|
|
{
|
|
|
|
|
src++;
|
|
|
|
|
len = parse_reg (src, &mode, &num);
|
|
|
|
|
if (len == 0)
|
|
|
|
|
{
|
|
|
|
|
/* Oops, not a reg after all, must be ordinary exp */
|
|
|
|
|
src--;
|
|
|
|
|
/* must be a symbol */
|
|
|
|
|
*ptr = skip_colonthing (exp_unsigned, src,
|
|
|
|
|
op, ABS16, ABS8, ABS16, ABS24);
|
|
|
|
|
return;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
op->type = RNDEC;
|
|
|
|
|
op->reg = num;
|
|
|
|
|
*ptr = src + len;
|
|
|
|
|
return;
|
|
|
|
|
}
|
|
|
|
|
if (*src == '(')
|
|
|
|
|
{
|
|
|
|
|
/* Disp */
|
|
|
|
|
src++;
|
|
|
|
|
|
|
|
|
|
src = skip_colonthing (exp_signed, src,
|
|
|
|
|
op, RNIND_D16, RNIND_D8, RNIND_D16, 0);
|
|
|
|
|
|
|
|
|
|
if (*src != ',')
|
|
|
|
|
{
|
|
|
|
|
as_bad (_("expected @(exp, Rn)"));
|
|
|
|
|
return;
|
|
|
|
|
}
|
|
|
|
|
src++;
|
|
|
|
|
len = parse_reg (src, &mode, &op->reg);
|
|
|
|
|
if (len == 0 || mode != RN)
|
|
|
|
|
{
|
|
|
|
|
as_bad (_("expected @(exp, Rn)"));
|
|
|
|
|
return;
|
|
|
|
|
}
|
|
|
|
|
src += len;
|
|
|
|
|
if (*src != ')')
|
|
|
|
|
{
|
|
|
|
|
as_bad (_("expected @(exp, Rn)"));
|
|
|
|
|
return;
|
|
|
|
|
}
|
|
|
|
|
*ptr = src + 1;
|
|
|
|
|
return;
|
|
|
|
|
}
|
|
|
|
|
len = parse_reg (src, &mode, &num);
|
|
|
|
|
|
|
|
|
|
if (len)
|
|
|
|
|
{
|
|
|
|
|
src += len;
|
|
|
|
|
if (*src == '+')
|
|
|
|
|
{
|
|
|
|
|
src++;
|
|
|
|
|
if (mode != RN)
|
|
|
|
|
{
|
|
|
|
|
as_bad (_("@Rn+ needs word register"));
|
|
|
|
|
return;
|
|
|
|
|
}
|
|
|
|
|
op->type = RNINC;
|
|
|
|
|
op->reg = num;
|
|
|
|
|
*ptr = src;
|
|
|
|
|
return;
|
|
|
|
|
}
|
|
|
|
|
if (mode != RN)
|
|
|
|
|
{
|
|
|
|
|
as_bad (_("@Rn needs word register"));
|
|
|
|
|
return;
|
|
|
|
|
}
|
|
|
|
|
op->type = RNIND;
|
|
|
|
|
op->reg = num;
|
|
|
|
|
*ptr = src;
|
|
|
|
|
return;
|
|
|
|
|
}
|
|
|
|
|
else
|
|
|
|
|
{
|
|
|
|
|
/* must be a symbol */
|
|
|
|
|
*ptr =
|
|
|
|
|
skip_colonthing (exp_unsigned, src, op,
|
|
|
|
|
ispage ? ABS24 : ABS16, ABS8, ABS16, ABS24);
|
|
|
|
|
return;
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
if (*src == '#')
|
|
|
|
|
{
|
|
|
|
|
src++;
|
|
|
|
|
*ptr = skip_colonthing (exp_sandu, src, op, IMM16, IMM8, IMM16, ABS24);
|
|
|
|
|
return;
|
|
|
|
|
}
|
|
|
|
|
else
|
|
|
|
|
{
|
|
|
|
|
*ptr = skip_colonthing (exp_signed, src, op,
|
|
|
|
|
ispage ? ABS24 : PCREL8, PCREL8, PCREL16, ABS24);
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
static
|
|
|
|
|
char *
|
|
|
|
|
get_operands (info, args, operand)
|
|
|
|
|
h8500_opcode_info *info;
|
|
|
|
|
char *args;
|
|
|
|
|
h8500_operand_info *operand;
|
|
|
|
|
|
|
|
|
|
{
|
|
|
|
|
char *ptr = args;
|
|
|
|
|
|
|
|
|
|
switch (info->nargs)
|
|
|
|
|
{
|
|
|
|
|
case 0:
|
|
|
|
|
operand[0].type = 0;
|
|
|
|
|
operand[1].type = 0;
|
|
|
|
|
break;
|
|
|
|
|
|
|
|
|
|
case 1:
|
|
|
|
|
ptr++;
|
|
|
|
|
get_operand (&ptr, operand + 0, info->name[0] == 'p');
|
|
|
|
|
operand[1].type = 0;
|
|
|
|
|
break;
|
|
|
|
|
|
|
|
|
|
case 2:
|
|
|
|
|
ptr++;
|
|
|
|
|
get_operand (&ptr, operand + 0, 0);
|
|
|
|
|
if (*ptr == ',')
|
|
|
|
|
ptr++;
|
|
|
|
|
get_operand (&ptr, operand + 1, 0);
|
|
|
|
|
break;
|
|
|
|
|
|
|
|
|
|
default:
|
|
|
|
|
abort ();
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
return ptr;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/* Passed a pointer to a list of opcodes which use different
|
|
|
|
|
addressing modes, return the opcode which matches the opcodes
|
|
|
|
|
provided
|
|
|
|
|
*/
|
|
|
|
|
|
|
|
|
|
int pcrel8; /* Set when we've seen a pcrel operand */
|
|
|
|
|
|
|
|
|
|
static
|
|
|
|
|
h8500_opcode_info *
|
|
|
|
|
get_specific (opcode, operands)
|
|
|
|
|
h8500_opcode_info *opcode;
|
|
|
|
|
h8500_operand_info *operands;
|
|
|
|
|
{
|
|
|
|
|
h8500_opcode_info *this_try = opcode;
|
|
|
|
|
int found = 0;
|
|
|
|
|
unsigned int noperands = opcode->nargs;
|
|
|
|
|
|
|
|
|
|
unsigned int this_index = opcode->idx;
|
|
|
|
|
|
|
|
|
|
while (this_index == opcode->idx && !found)
|
|
|
|
|
{
|
|
|
|
|
unsigned int i;
|
|
|
|
|
|
|
|
|
|
this_try = opcode++;
|
|
|
|
|
|
|
|
|
|
/* look at both operands needed by the opcodes and provided by
|
|
|
|
|
the user*/
|
|
|
|
|
for (i = 0; i < noperands; i++)
|
|
|
|
|
{
|
|
|
|
|
h8500_operand_info *user = operands + i;
|
|
|
|
|
|
|
|
|
|
switch (this_try->arg_type[i])
|
|
|
|
|
{
|
|
|
|
|
case FPIND_D8:
|
|
|
|
|
/* Opcode needs (disp:8,fp) */
|
|
|
|
|
if (user->type == RNIND_D8 && user->reg == 6)
|
|
|
|
|
{
|
|
|
|
|
displacement = user->exp;
|
|
|
|
|
continue;
|
|
|
|
|
}
|
|
|
|
|
break;
|
|
|
|
|
case RDIND_D16:
|
|
|
|
|
if (user->type == RNIND_D16)
|
|
|
|
|
{
|
|
|
|
|
displacement = user->exp;
|
|
|
|
|
rd = user->reg;
|
|
|
|
|
continue;
|
|
|
|
|
}
|
|
|
|
|
break;
|
|
|
|
|
case RDIND_D8:
|
|
|
|
|
if (user->type == RNIND_D8)
|
|
|
|
|
{
|
|
|
|
|
displacement = user->exp;
|
|
|
|
|
rd = user->reg;
|
|
|
|
|
continue;
|
|
|
|
|
}
|
|
|
|
|
break;
|
|
|
|
|
case RNIND_D16:
|
|
|
|
|
case RNIND_D8:
|
|
|
|
|
if (user->type == this_try->arg_type[i])
|
|
|
|
|
{
|
|
|
|
|
displacement = user->exp;
|
|
|
|
|
rn = user->reg;
|
|
|
|
|
continue;
|
|
|
|
|
}
|
|
|
|
|
break;
|
|
|
|
|
|
|
|
|
|
case SPDEC:
|
|
|
|
|
if (user->type == RNDEC && user->reg == 7)
|
|
|
|
|
{
|
|
|
|
|
continue;
|
|
|
|
|
}
|
|
|
|
|
break;
|
|
|
|
|
case SPINC:
|
|
|
|
|
if (user->type == RNINC && user->reg == 7)
|
|
|
|
|
{
|
|
|
|
|
continue;
|
|
|
|
|
}
|
|
|
|
|
break;
|
|
|
|
|
case ABS16:
|
|
|
|
|
if (user->type == ABS16)
|
|
|
|
|
{
|
|
|
|
|
absolute = user->exp;
|
|
|
|
|
continue;
|
|
|
|
|
}
|
|
|
|
|
break;
|
|
|
|
|
case ABS8:
|
|
|
|
|
if (user->type == ABS8)
|
|
|
|
|
{
|
|
|
|
|
absolute = user->exp;
|
|
|
|
|
continue;
|
|
|
|
|
}
|
|
|
|
|
break;
|
|
|
|
|
case ABS24:
|
|
|
|
|
if (user->type == ABS24)
|
|
|
|
|
{
|
|
|
|
|
absolute = user->exp;
|
|
|
|
|
continue;
|
|
|
|
|
}
|
|
|
|
|
break;
|
|
|
|
|
|
|
|
|
|
case CRB:
|
|
|
|
|
if ((user->type == CRB || user->type == CR) && user->reg != 0)
|
|
|
|
|
{
|
|
|
|
|
crb = user->reg;
|
|
|
|
|
continue;
|
|
|
|
|
}
|
|
|
|
|
break;
|
|
|
|
|
case CRW:
|
|
|
|
|
if ((user->type == CRW || user->type == CR) && user->reg == 0)
|
|
|
|
|
{
|
|
|
|
|
crw = user->reg;
|
|
|
|
|
continue;
|
|
|
|
|
}
|
|
|
|
|
break;
|
|
|
|
|
case DISP16:
|
|
|
|
|
if (user->type == DISP16)
|
|
|
|
|
{
|
|
|
|
|
displacement = user->exp;
|
|
|
|
|
continue;
|
|
|
|
|
}
|
|
|
|
|
break;
|
|
|
|
|
case DISP8:
|
|
|
|
|
if (user->type == DISP8)
|
|
|
|
|
{
|
|
|
|
|
displacement = user->exp;
|
|
|
|
|
continue;
|
|
|
|
|
}
|
|
|
|
|
break;
|
|
|
|
|
case FP:
|
|
|
|
|
if (user->type == RN && user->reg == 6)
|
|
|
|
|
{
|
|
|
|
|
continue;
|
|
|
|
|
}
|
|
|
|
|
break;
|
|
|
|
|
case PCREL16:
|
|
|
|
|
if (user->type == PCREL16)
|
|
|
|
|
{
|
|
|
|
|
displacement = user->exp;
|
|
|
|
|
continue;
|
|
|
|
|
}
|
|
|
|
|
break;
|
|
|
|
|
case PCREL8:
|
|
|
|
|
if (user->type == PCREL8)
|
|
|
|
|
{
|
|
|
|
|
displacement = user->exp;
|
|
|
|
|
pcrel8 = 1;
|
|
|
|
|
continue;
|
|
|
|
|
}
|
|
|
|
|
break;
|
|
|
|
|
|
|
|
|
|
case IMM16:
|
|
|
|
|
if (user->type == IMM16
|
|
|
|
|
|| user->type == IMM8)
|
|
|
|
|
{
|
|
|
|
|
immediate_inpage = user->page;
|
|
|
|
|
immediate = user->exp;
|
|
|
|
|
continue;
|
|
|
|
|
}
|
|
|
|
|
break;
|
|
|
|
|
case RLIST:
|
|
|
|
|
case IMM8:
|
|
|
|
|
if (user->type == IMM8)
|
|
|
|
|
{
|
|
|
|
|
immediate_inpage = user->page;
|
|
|
|
|
immediate = user->exp;
|
|
|
|
|
continue;
|
|
|
|
|
}
|
|
|
|
|
break;
|
|
|
|
|
case IMM4:
|
|
|
|
|
if (user->type == IMM8)
|
|
|
|
|
{
|
|
|
|
|
immediate_inpage = user->page;
|
|
|
|
|
immediate = user->exp;
|
|
|
|
|
continue;
|
|
|
|
|
}
|
|
|
|
|
break;
|
|
|
|
|
case QIM:
|
|
|
|
|
if (user->type == IMM8
|
|
|
|
|
&& user->exp.X_op == O_constant
|
|
|
|
|
&&
|
|
|
|
|
(user->exp.X_add_number == -2
|
|
|
|
|
|| user->exp.X_add_number == -1
|
|
|
|
|
|| user->exp.X_add_number == 1
|
|
|
|
|
|| user->exp.X_add_number == 2))
|
|
|
|
|
{
|
|
|
|
|
immediate_inpage = user->page;
|
|
|
|
|
immediate = user->exp;
|
|
|
|
|
continue;
|
|
|
|
|
}
|
|
|
|
|
break;
|
|
|
|
|
case RD:
|
|
|
|
|
if (user->type == RN)
|
|
|
|
|
{
|
|
|
|
|
rd = user->reg;
|
|
|
|
|
continue;
|
|
|
|
|
}
|
|
|
|
|
break;
|
|
|
|
|
case RS:
|
|
|
|
|
if (user->type == RN)
|
|
|
|
|
{
|
|
|
|
|
rs = user->reg;
|
|
|
|
|
continue;
|
|
|
|
|
}
|
|
|
|
|
break;
|
|
|
|
|
case RDIND:
|
|
|
|
|
if (user->type == RNIND)
|
|
|
|
|
{
|
|
|
|
|
rd = user->reg;
|
|
|
|
|
continue;
|
|
|
|
|
|
|
|
|
|
}
|
|
|
|
|
break;
|
|
|
|
|
case RNINC:
|
|
|
|
|
case RNIND:
|
|
|
|
|
case RNDEC:
|
|
|
|
|
case RN:
|
|
|
|
|
|
|
|
|
|
if (user->type == this_try->arg_type[i])
|
|
|
|
|
{
|
|
|
|
|
rn = user->reg;
|
|
|
|
|
continue;
|
|
|
|
|
}
|
|
|
|
|
break;
|
|
|
|
|
case SP:
|
|
|
|
|
if (user->type == RN && user->reg == 7)
|
|
|
|
|
{
|
|
|
|
|
continue;
|
|
|
|
|
}
|
|
|
|
|
break;
|
|
|
|
|
default:
|
|
|
|
|
printf (_("unhandled %d\n"), this_try->arg_type[i]);
|
|
|
|
|
break;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/* If we get here this didn't work out */
|
|
|
|
|
goto fail;
|
|
|
|
|
}
|
|
|
|
|
found = 1;
|
|
|
|
|
fail:;
|
|
|
|
|
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
if (found)
|
|
|
|
|
return this_try;
|
|
|
|
|
else
|
|
|
|
|
return 0;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
int
|
|
|
|
|
check (operand, low, high)
|
|
|
|
|
expressionS *operand;
|
|
|
|
|
int low;
|
|
|
|
|
int high;
|
|
|
|
|
{
|
|
|
|
|
if (operand->X_op != O_constant
|
|
|
|
|
|| operand->X_add_number < low
|
|
|
|
|
|| operand->X_add_number > high)
|
|
|
|
|
{
|
|
|
|
|
as_bad (_("operand must be absolute in range %d..%d"), low, high);
|
|
|
|
|
}
|
|
|
|
|
return operand->X_add_number;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
static
|
|
|
|
|
void
|
|
|
|
|
insert (output, index, exp, reloc, pcrel)
|
|
|
|
|
char *output;
|
|
|
|
|
int index;
|
|
|
|
|
expressionS *exp;
|
|
|
|
|
int reloc;
|
|
|
|
|
int pcrel;
|
|
|
|
|
{
|
|
|
|
|
fix_new_exp (frag_now,
|
|
|
|
|
output - frag_now->fr_literal + index,
|
|
|
|
|
4, /* always say size is 4, but we know better */
|
|
|
|
|
exp,
|
|
|
|
|
pcrel,
|
|
|
|
|
reloc);
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
void
|
|
|
|
|
build_relaxable_instruction (opcode, operand)
|
|
|
|
|
h8500_opcode_info *opcode;
|
|
|
|
|
h8500_operand_info *operand;
|
|
|
|
|
{
|
|
|
|
|
/* All relaxable instructions start life as two bytes but can become
|
|
|
|
|
three bytes long if a lonely branch and up to 9 bytes if long scb
|
|
|
|
|
*/
|
|
|
|
|
char *p;
|
|
|
|
|
int len;
|
|
|
|
|
int type;
|
|
|
|
|
|
|
|
|
|
if (opcode->bytes[0].contents == 0x01)
|
|
|
|
|
{
|
|
|
|
|
type = SCB_F;
|
|
|
|
|
}
|
|
|
|
|
else if (opcode->bytes[0].contents == 0x06
|
|
|
|
|
|| opcode->bytes[0].contents == 0x07)
|
|
|
|
|
{
|
|
|
|
|
type = SCB_TST;
|
|
|
|
|
}
|
|
|
|
|
else
|
|
|
|
|
{
|
|
|
|
|
type = BRANCH;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
p = frag_var (rs_machine_dependent,
|
|
|
|
|
md_relax_table[C (type, WORD_DISP)].rlx_length,
|
|
|
|
|
len = md_relax_table[C (type, BYTE_DISP)].rlx_length,
|
|
|
|
|
C (type, UNDEF_BYTE_DISP),
|
|
|
|
|
displacement.X_add_symbol,
|
|
|
|
|
displacement.X_add_number,
|
|
|
|
|
0);
|
|
|
|
|
|
|
|
|
|
p[0] = opcode->bytes[0].contents;
|
|
|
|
|
if (type != BRANCH)
|
|
|
|
|
{
|
|
|
|
|
p[1] = opcode->bytes[1].contents | rs;
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
|
2000-06-24 10:07:01 +02:00
|
|
|
|
/* Now we know what sort of opcodes it is, let's build the bytes -
|
1999-05-03 09:29:11 +02:00
|
|
|
|
*/
|
|
|
|
|
static void
|
|
|
|
|
build_bytes (opcode, operand)
|
|
|
|
|
h8500_opcode_info *opcode;
|
|
|
|
|
h8500_operand_info *operand;
|
|
|
|
|
|
|
|
|
|
{
|
|
|
|
|
int index;
|
|
|
|
|
|
|
|
|
|
if (pcrel8)
|
|
|
|
|
{
|
|
|
|
|
pcrel8 = 0;
|
|
|
|
|
build_relaxable_instruction (opcode, operand);
|
|
|
|
|
}
|
|
|
|
|
else
|
|
|
|
|
{
|
|
|
|
|
char *output = frag_more (opcode->length);
|
|
|
|
|
|
|
|
|
|
memset (output, 0, opcode->length);
|
|
|
|
|
for (index = 0; index < opcode->length; index++)
|
|
|
|
|
{
|
|
|
|
|
output[index] = opcode->bytes[index].contents;
|
|
|
|
|
|
|
|
|
|
switch (opcode->bytes[index].insert)
|
|
|
|
|
{
|
|
|
|
|
default:
|
|
|
|
|
printf (_("failed for %d\n"), opcode->bytes[index].insert);
|
|
|
|
|
break;
|
|
|
|
|
case 0:
|
|
|
|
|
break;
|
|
|
|
|
case RN:
|
|
|
|
|
output[index] |= rn;
|
|
|
|
|
break;
|
|
|
|
|
case RD:
|
|
|
|
|
case RDIND:
|
|
|
|
|
|
|
|
|
|
output[index] |= rd;
|
|
|
|
|
break;
|
|
|
|
|
case RS:
|
|
|
|
|
output[index] |= rs;
|
|
|
|
|
break;
|
|
|
|
|
case DISP16:
|
|
|
|
|
insert (output, index, &displacement, R_H8500_IMM16, 0);
|
|
|
|
|
index++;
|
|
|
|
|
break;
|
|
|
|
|
case DISP8:
|
|
|
|
|
case FPIND_D8:
|
|
|
|
|
insert (output, index, &displacement, R_H8500_IMM8, 0);
|
|
|
|
|
break;
|
|
|
|
|
|
|
|
|
|
case IMM16:
|
|
|
|
|
{
|
|
|
|
|
int p;
|
|
|
|
|
switch (immediate_inpage) {
|
|
|
|
|
case 'p':
|
|
|
|
|
p = R_H8500_HIGH16;
|
|
|
|
|
break;
|
|
|
|
|
case 'h':
|
|
|
|
|
p = R_H8500_HIGH16;
|
|
|
|
|
break;
|
|
|
|
|
default:
|
|
|
|
|
p = R_H8500_IMM16;
|
|
|
|
|
break;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
insert (output, index, &immediate,p, 0);
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
index++;
|
|
|
|
|
break;
|
|
|
|
|
case RLIST:
|
|
|
|
|
case IMM8:
|
|
|
|
|
if (immediate_inpage)
|
|
|
|
|
{
|
|
|
|
|
insert (output, index, &immediate, R_H8500_HIGH8, 0);
|
|
|
|
|
}
|
|
|
|
|
else
|
|
|
|
|
{
|
|
|
|
|
insert (output, index, &immediate, R_H8500_IMM8, 0);
|
|
|
|
|
}
|
|
|
|
|
break;
|
|
|
|
|
case PCREL16:
|
|
|
|
|
insert (output, index, &displacement, R_H8500_PCREL16, 1);
|
|
|
|
|
index++;
|
|
|
|
|
break;
|
|
|
|
|
case PCREL8:
|
|
|
|
|
insert (output, index, &displacement, R_H8500_PCREL8, 1);
|
|
|
|
|
break;
|
|
|
|
|
case IMM4:
|
|
|
|
|
output[index] |= check (&immediate, 0, 15);
|
|
|
|
|
break;
|
|
|
|
|
case CR:
|
|
|
|
|
|
|
|
|
|
output[index] |= cr;
|
|
|
|
|
if (cr == 0)
|
|
|
|
|
{
|
|
|
|
|
output[0] |= 0x8;
|
|
|
|
|
}
|
|
|
|
|
else
|
|
|
|
|
{
|
|
|
|
|
output[0] &= ~0x8;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
break;
|
|
|
|
|
|
|
|
|
|
case CRB:
|
|
|
|
|
output[index] |= crb;
|
|
|
|
|
output[0] &= ~0x8;
|
|
|
|
|
break;
|
|
|
|
|
case CRW:
|
|
|
|
|
output[index] |= crw;
|
|
|
|
|
output[0] |= 0x8;
|
|
|
|
|
break;
|
|
|
|
|
case ABS24:
|
|
|
|
|
insert (output, index, &absolute, R_H8500_IMM24, 0);
|
|
|
|
|
index += 2;
|
|
|
|
|
break;
|
|
|
|
|
case ABS16:
|
|
|
|
|
insert (output, index, &absolute, R_H8500_IMM16, 0);
|
|
|
|
|
index++;
|
|
|
|
|
break;
|
|
|
|
|
case ABS8:
|
|
|
|
|
insert (output, index, &absolute, R_H8500_IMM8, 0);
|
|
|
|
|
break;
|
|
|
|
|
case QIM:
|
|
|
|
|
switch (immediate.X_add_number)
|
|
|
|
|
{
|
|
|
|
|
case -2:
|
|
|
|
|
output[index] |= 0x5;
|
|
|
|
|
break;
|
|
|
|
|
case -1:
|
|
|
|
|
output[index] |= 0x4;
|
|
|
|
|
break;
|
|
|
|
|
case 1:
|
|
|
|
|
output[index] |= 0;
|
|
|
|
|
break;
|
|
|
|
|
case 2:
|
|
|
|
|
output[index] |= 1;
|
|
|
|
|
break;
|
|
|
|
|
}
|
|
|
|
|
break;
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/* This is the guts of the machine-dependent assembler. STR points to a
|
2000-06-24 10:07:01 +02:00
|
|
|
|
machine dependent instruction. This function is supposed to emit
|
1999-05-03 09:29:11 +02:00
|
|
|
|
the frags/bytes it assembles to.
|
|
|
|
|
*/
|
|
|
|
|
|
|
|
|
|
void
|
|
|
|
|
DEFUN (md_assemble, (str),
|
|
|
|
|
char *str)
|
|
|
|
|
{
|
|
|
|
|
char *op_start;
|
|
|
|
|
char *op_end;
|
|
|
|
|
h8500_operand_info operand[2];
|
|
|
|
|
h8500_opcode_info *opcode;
|
|
|
|
|
h8500_opcode_info *prev_opcode;
|
|
|
|
|
char name[11];
|
|
|
|
|
|
|
|
|
|
int nlen = 0;
|
|
|
|
|
|
|
|
|
|
/* Drop leading whitespace */
|
|
|
|
|
while (*str == ' ')
|
|
|
|
|
str++;
|
|
|
|
|
|
|
|
|
|
/* find the op code end */
|
|
|
|
|
for (op_start = op_end = str;
|
2000-06-02 04:52:10 +02:00
|
|
|
|
!is_end_of_line[(unsigned char) *op_end] && *op_end != ' ';
|
1999-05-03 09:29:11 +02:00
|
|
|
|
op_end++)
|
|
|
|
|
{
|
|
|
|
|
if ( /**op_end != '.'
|
|
|
|
|
&& *op_end != ':'
|
|
|
|
|
&& */ nlen < 10)
|
|
|
|
|
{
|
|
|
|
|
name[nlen++] = *op_end;
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
name[nlen] = 0;
|
|
|
|
|
|
|
|
|
|
if (op_end == op_start)
|
|
|
|
|
{
|
|
|
|
|
as_bad (_("can't find opcode "));
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
opcode = (h8500_opcode_info *) hash_find (opcode_hash_control, name);
|
|
|
|
|
|
|
|
|
|
if (opcode == NULL)
|
|
|
|
|
{
|
|
|
|
|
as_bad (_("unknown opcode"));
|
|
|
|
|
return;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
get_operands (opcode, op_end, operand);
|
|
|
|
|
prev_opcode = opcode;
|
|
|
|
|
|
|
|
|
|
opcode = get_specific (opcode, operand);
|
|
|
|
|
|
|
|
|
|
if (opcode == 0)
|
|
|
|
|
{
|
|
|
|
|
/* Couldn't find an opcode which matched the operands */
|
|
|
|
|
char *where = frag_more (2);
|
|
|
|
|
|
|
|
|
|
where[0] = 0x0;
|
|
|
|
|
where[1] = 0x0;
|
|
|
|
|
as_bad (_("invalid operands for opcode"));
|
|
|
|
|
return;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
build_bytes (opcode, operand);
|
|
|
|
|
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
void
|
|
|
|
|
DEFUN (tc_crawl_symbol_chain, (headers),
|
|
|
|
|
object_headers * headers)
|
|
|
|
|
{
|
|
|
|
|
printf (_("call to tc_crawl_symbol_chain \n"));
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
symbolS *
|
|
|
|
|
DEFUN (md_undefined_symbol, (name),
|
|
|
|
|
char *name)
|
|
|
|
|
{
|
|
|
|
|
return 0;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
void
|
|
|
|
|
DEFUN (tc_headers_hook, (headers),
|
|
|
|
|
object_headers * headers)
|
|
|
|
|
{
|
|
|
|
|
printf (_("call to tc_headers_hook \n"));
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/* Various routines to kill one day */
|
|
|
|
|
/* Equal to MAX_PRECISION in atof-ieee.c */
|
|
|
|
|
#define MAX_LITTLENUMS 6
|
|
|
|
|
|
|
|
|
|
/* Turn a string in input_line_pointer into a floating point constant of type
|
2000-06-24 10:07:01 +02:00
|
|
|
|
type, and store the appropriate bytes in *LITP. The number of LITTLENUMS
|
|
|
|
|
emitted is stored in *SIZEP . An error message is returned, or NULL on OK.
|
1999-05-03 09:29:11 +02:00
|
|
|
|
*/
|
|
|
|
|
char *
|
|
|
|
|
md_atof (type, litP, sizeP)
|
|
|
|
|
char type;
|
|
|
|
|
char *litP;
|
|
|
|
|
int *sizeP;
|
|
|
|
|
{
|
|
|
|
|
int prec;
|
|
|
|
|
LITTLENUM_TYPE words[MAX_LITTLENUMS];
|
|
|
|
|
LITTLENUM_TYPE *wordP;
|
|
|
|
|
char *t;
|
|
|
|
|
char *atof_ieee ();
|
|
|
|
|
|
|
|
|
|
switch (type)
|
|
|
|
|
{
|
|
|
|
|
case 'f':
|
|
|
|
|
case 'F':
|
|
|
|
|
case 's':
|
|
|
|
|
case 'S':
|
|
|
|
|
prec = 2;
|
|
|
|
|
break;
|
|
|
|
|
|
|
|
|
|
case 'd':
|
|
|
|
|
case 'D':
|
|
|
|
|
case 'r':
|
|
|
|
|
case 'R':
|
|
|
|
|
prec = 4;
|
|
|
|
|
break;
|
|
|
|
|
|
|
|
|
|
case 'x':
|
|
|
|
|
case 'X':
|
|
|
|
|
prec = 6;
|
|
|
|
|
break;
|
|
|
|
|
|
|
|
|
|
case 'p':
|
|
|
|
|
case 'P':
|
|
|
|
|
prec = 6;
|
|
|
|
|
break;
|
|
|
|
|
|
|
|
|
|
default:
|
|
|
|
|
*sizeP = 0;
|
|
|
|
|
return _("Bad call to MD_ATOF()");
|
|
|
|
|
}
|
|
|
|
|
t = atof_ieee (input_line_pointer, type, words);
|
|
|
|
|
if (t)
|
|
|
|
|
input_line_pointer = t;
|
|
|
|
|
|
|
|
|
|
*sizeP = prec * sizeof (LITTLENUM_TYPE);
|
|
|
|
|
for (wordP = words; prec--;)
|
|
|
|
|
{
|
|
|
|
|
md_number_to_chars (litP, (long) (*wordP++), sizeof (LITTLENUM_TYPE));
|
|
|
|
|
litP += sizeof (LITTLENUM_TYPE);
|
|
|
|
|
}
|
|
|
|
|
return 0;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
CONST char *md_shortopts = "";
|
|
|
|
|
struct option md_longopts[] = {
|
|
|
|
|
{NULL, no_argument, NULL, 0}
|
|
|
|
|
};
|
|
|
|
|
size_t md_longopts_size = sizeof(md_longopts);
|
|
|
|
|
|
|
|
|
|
int
|
|
|
|
|
md_parse_option (c, arg)
|
|
|
|
|
int c;
|
|
|
|
|
char *arg;
|
|
|
|
|
{
|
|
|
|
|
return 0;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
void
|
|
|
|
|
md_show_usage (stream)
|
|
|
|
|
FILE *stream;
|
|
|
|
|
{
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
void
|
|
|
|
|
tc_aout_fix_to_chars ()
|
|
|
|
|
{
|
|
|
|
|
printf (_("call to tc_aout_fix_to_chars \n"));
|
|
|
|
|
abort ();
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
static
|
|
|
|
|
void
|
|
|
|
|
wordify_scb (buffer, disp_size, inst_size)
|
|
|
|
|
char *buffer;
|
|
|
|
|
int *disp_size;
|
|
|
|
|
int *inst_size;
|
|
|
|
|
{
|
|
|
|
|
int rn = buffer[1] & 0x7;
|
|
|
|
|
|
|
|
|
|
switch (buffer[0])
|
|
|
|
|
{
|
|
|
|
|
case 0x0e: /* BSR */
|
|
|
|
|
case 0x20:
|
|
|
|
|
case 0x21:
|
|
|
|
|
case 0x22:
|
|
|
|
|
case 0x23:
|
|
|
|
|
case 0x24:
|
|
|
|
|
case 0x25:
|
|
|
|
|
case 0x26:
|
|
|
|
|
case 0x27:
|
|
|
|
|
case 0x28:
|
|
|
|
|
case 0x29:
|
|
|
|
|
case 0x2a:
|
|
|
|
|
case 0x2b:
|
|
|
|
|
case 0x2c:
|
|
|
|
|
case 0x2d:
|
|
|
|
|
case 0x2e:
|
|
|
|
|
case 0x2f:
|
|
|
|
|
buffer[0] |= 0x10;
|
|
|
|
|
buffer[1] = 0;
|
|
|
|
|
buffer[2] = 0;
|
|
|
|
|
*disp_size = 2;
|
|
|
|
|
*inst_size = 1;
|
|
|
|
|
return;
|
|
|
|
|
default:
|
|
|
|
|
abort ();
|
|
|
|
|
|
|
|
|
|
case 0x01:
|
|
|
|
|
*inst_size = 6;
|
|
|
|
|
*disp_size = 2;
|
|
|
|
|
break;
|
|
|
|
|
case 0x06:
|
|
|
|
|
*inst_size = 8;
|
|
|
|
|
*disp_size = 2;
|
|
|
|
|
|
|
|
|
|
*buffer++ = 0x26; /* bne + 8 */
|
|
|
|
|
*buffer++ = 0x08;
|
|
|
|
|
break;
|
|
|
|
|
case 0x07:
|
|
|
|
|
*inst_size = 8;
|
|
|
|
|
*disp_size = 2;
|
|
|
|
|
*buffer++ = 0x27; /* bne + 8 */
|
|
|
|
|
*buffer++ = 0x08;
|
|
|
|
|
break;
|
|
|
|
|
|
|
|
|
|
}
|
|
|
|
|
*buffer++ = 0xa8 | rn; /* addq -1,rn */
|
|
|
|
|
*buffer++ = 0x0c;
|
|
|
|
|
*buffer++ = 0x04; /* cmp #0xff:8, rn */
|
|
|
|
|
*buffer++ = 0xff;
|
|
|
|
|
*buffer++ = 0x70 | rn;
|
|
|
|
|
*buffer++ = 0x36; /* bne ... */
|
|
|
|
|
*buffer++ = 0;
|
|
|
|
|
*buffer++ = 0;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/*
|
|
|
|
|
called after relaxing, change the frags so they know how big they are
|
|
|
|
|
*/
|
|
|
|
|
void
|
|
|
|
|
md_convert_frag (headers, seg, fragP)
|
|
|
|
|
object_headers *headers;
|
|
|
|
|
segT seg;
|
|
|
|
|
fragS *fragP;
|
|
|
|
|
{
|
|
|
|
|
int disp_size = 0;
|
|
|
|
|
int inst_size = 0;
|
|
|
|
|
char *buffer = fragP->fr_fix + fragP->fr_literal;
|
|
|
|
|
|
|
|
|
|
switch (fragP->fr_subtype)
|
|
|
|
|
{
|
|
|
|
|
case C (BRANCH, BYTE_DISP):
|
|
|
|
|
disp_size = 1;
|
|
|
|
|
inst_size = 1;
|
|
|
|
|
break;
|
|
|
|
|
|
|
|
|
|
case C (SCB_F, BYTE_DISP):
|
|
|
|
|
case C (SCB_TST, BYTE_DISP):
|
|
|
|
|
disp_size = 1;
|
|
|
|
|
inst_size = 2;
|
|
|
|
|
break;
|
|
|
|
|
|
|
|
|
|
/* Branches to a known 16 bit displacement */
|
|
|
|
|
|
|
|
|
|
/* Turn on the 16bit bit */
|
|
|
|
|
case C (BRANCH, WORD_DISP):
|
|
|
|
|
case C (SCB_F, WORD_DISP):
|
|
|
|
|
case C (SCB_TST, WORD_DISP):
|
|
|
|
|
wordify_scb (buffer, &disp_size, &inst_size);
|
|
|
|
|
break;
|
|
|
|
|
|
|
|
|
|
case C (BRANCH, UNDEF_WORD_DISP):
|
|
|
|
|
case C (SCB_F, UNDEF_WORD_DISP):
|
|
|
|
|
case C (SCB_TST, UNDEF_WORD_DISP):
|
|
|
|
|
/* This tried to be relaxed, but didn't manage it, it now needs a
|
|
|
|
|
fix */
|
|
|
|
|
wordify_scb (buffer, &disp_size, &inst_size);
|
|
|
|
|
|
|
|
|
|
/* Make a reloc */
|
|
|
|
|
fix_new (fragP,
|
|
|
|
|
fragP->fr_fix + inst_size,
|
|
|
|
|
4,
|
|
|
|
|
fragP->fr_symbol,
|
|
|
|
|
fragP->fr_offset,
|
|
|
|
|
0,
|
|
|
|
|
R_H8500_PCREL16);
|
|
|
|
|
|
|
|
|
|
fragP->fr_fix += disp_size + inst_size;
|
|
|
|
|
fragP->fr_var = 0;
|
|
|
|
|
return;
|
|
|
|
|
break;
|
|
|
|
|
default:
|
|
|
|
|
abort ();
|
|
|
|
|
}
|
|
|
|
|
if (inst_size)
|
|
|
|
|
{
|
|
|
|
|
/* Get the address of the end of the instruction */
|
|
|
|
|
int next_inst = fragP->fr_fix + fragP->fr_address + disp_size + inst_size;
|
|
|
|
|
int targ_addr = (S_GET_VALUE (fragP->fr_symbol) +
|
|
|
|
|
fragP->fr_offset);
|
|
|
|
|
int disp = targ_addr - next_inst;
|
|
|
|
|
|
|
|
|
|
md_number_to_chars (buffer + inst_size, disp, disp_size);
|
|
|
|
|
fragP->fr_fix += disp_size + inst_size;
|
|
|
|
|
fragP->fr_var = 0;
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
valueT
|
|
|
|
|
md_section_align (seg, size)
|
|
|
|
|
segT seg ;
|
|
|
|
|
valueT size;
|
|
|
|
|
{
|
|
|
|
|
return ((size + (1 << section_alignment[(int) seg]) - 1)
|
|
|
|
|
& (-1 << section_alignment[(int) seg]));
|
|
|
|
|
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
void
|
|
|
|
|
md_apply_fix (fixP, val)
|
|
|
|
|
fixS *fixP;
|
|
|
|
|
long val;
|
|
|
|
|
{
|
|
|
|
|
char *buf = fixP->fx_where + fixP->fx_frag->fr_literal;
|
|
|
|
|
|
|
|
|
|
if (fixP->fx_r_type == 0)
|
|
|
|
|
{
|
|
|
|
|
fixP->fx_r_type = fixP->fx_size == 4 ? R_H8500_IMM32 : R_H8500_IMM16;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
switch (fixP->fx_r_type)
|
|
|
|
|
{
|
|
|
|
|
|
|
|
|
|
case R_H8500_IMM8:
|
|
|
|
|
case R_H8500_PCREL8:
|
|
|
|
|
*buf++ = val;
|
|
|
|
|
break;
|
|
|
|
|
case R_H8500_IMM16:
|
|
|
|
|
case R_H8500_LOW16:
|
|
|
|
|
case R_H8500_PCREL16:
|
|
|
|
|
*buf++ = (val >> 8);
|
|
|
|
|
*buf++ = val;
|
|
|
|
|
break;
|
|
|
|
|
case R_H8500_HIGH8:
|
|
|
|
|
*buf++ = val >> 16;
|
|
|
|
|
break;
|
|
|
|
|
case R_H8500_HIGH16:
|
|
|
|
|
*buf++ = val >> 24;
|
|
|
|
|
*buf++ = val >> 16;
|
|
|
|
|
break;
|
|
|
|
|
case R_H8500_IMM24:
|
|
|
|
|
*buf++ = (val >> 16);
|
|
|
|
|
*buf++ = (val >> 8);
|
|
|
|
|
*buf++ = val;
|
|
|
|
|
break;
|
|
|
|
|
case R_H8500_IMM32:
|
|
|
|
|
*buf++ = (val >> 24);
|
|
|
|
|
*buf++ = (val >> 16);
|
|
|
|
|
*buf++ = (val >> 8);
|
|
|
|
|
*buf++ = val;
|
|
|
|
|
break;
|
|
|
|
|
default:
|
|
|
|
|
abort ();
|
|
|
|
|
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/*
|
|
|
|
|
called just before address relaxation, return the length
|
|
|
|
|
by which a fragment must grow to reach it's destination
|
|
|
|
|
*/
|
|
|
|
|
int
|
|
|
|
|
md_estimate_size_before_relax (fragP, segment_type)
|
|
|
|
|
register fragS *fragP;
|
|
|
|
|
register segT segment_type;
|
|
|
|
|
{
|
|
|
|
|
int what = GET_WHAT (fragP->fr_subtype);
|
|
|
|
|
|
|
|
|
|
switch (fragP->fr_subtype)
|
|
|
|
|
{
|
|
|
|
|
default:
|
|
|
|
|
abort ();
|
|
|
|
|
case C (BRANCH, UNDEF_BYTE_DISP):
|
|
|
|
|
case C (SCB_F, UNDEF_BYTE_DISP):
|
|
|
|
|
case C (SCB_TST, UNDEF_BYTE_DISP):
|
|
|
|
|
/* used to be a branch to somewhere which was unknown */
|
|
|
|
|
if (S_GET_SEGMENT (fragP->fr_symbol) == segment_type)
|
|
|
|
|
{
|
|
|
|
|
/* Got a symbol and it's defined in this segment, become byte
|
|
|
|
|
sized - maybe it will fix up */
|
|
|
|
|
fragP->fr_subtype = C (what, BYTE_DISP);
|
|
|
|
|
fragP->fr_var = md_relax_table[C (what, BYTE_DISP)].rlx_length;
|
|
|
|
|
}
|
|
|
|
|
else
|
|
|
|
|
{
|
|
|
|
|
/* Its got a segment, but its not ours, so it will always be long */
|
|
|
|
|
fragP->fr_subtype = C (what, UNDEF_WORD_DISP);
|
|
|
|
|
fragP->fr_var = md_relax_table[C (what, WORD_DISP)].rlx_length;
|
|
|
|
|
return md_relax_table[C (what, WORD_DISP)].rlx_length;
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
return fragP->fr_var;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/* Put number into target byte order */
|
|
|
|
|
|
|
|
|
|
void
|
|
|
|
|
md_number_to_chars (ptr, use, nbytes)
|
|
|
|
|
char *ptr;
|
|
|
|
|
valueT use;
|
|
|
|
|
int nbytes;
|
|
|
|
|
{
|
|
|
|
|
number_to_chars_bigendian (ptr, use, nbytes);
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
long
|
|
|
|
|
md_pcrel_from (fixP)
|
|
|
|
|
fixS *fixP;
|
|
|
|
|
{
|
|
|
|
|
return fixP->fx_size + fixP->fx_where + fixP->fx_frag->fr_address;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/*ARGSUSED*/
|
|
|
|
|
void
|
|
|
|
|
tc_coff_symbol_emit_hook (ignore)
|
|
|
|
|
symbolS *ignore;
|
|
|
|
|
{
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
short
|
|
|
|
|
tc_coff_fix2rtype (fix_ptr)
|
|
|
|
|
fixS *fix_ptr;
|
|
|
|
|
{
|
|
|
|
|
if (fix_ptr->fx_r_type == RELOC_32)
|
|
|
|
|
{
|
|
|
|
|
/* cons likes to create reloc32's whatever the size of the reloc..
|
|
|
|
|
*/
|
|
|
|
|
switch (fix_ptr->fx_size)
|
|
|
|
|
{
|
|
|
|
|
case 2:
|
|
|
|
|
return R_H8500_IMM16;
|
|
|
|
|
break;
|
|
|
|
|
case 1:
|
|
|
|
|
return R_H8500_IMM8;
|
|
|
|
|
break;
|
|
|
|
|
default:
|
|
|
|
|
abort ();
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
return fix_ptr->fx_r_type;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
void
|
|
|
|
|
tc_reloc_mangle (fix_ptr, intr, base)
|
|
|
|
|
fixS *fix_ptr;
|
|
|
|
|
struct internal_reloc *intr;
|
|
|
|
|
bfd_vma base;
|
|
|
|
|
|
|
|
|
|
{
|
|
|
|
|
symbolS *symbol_ptr;
|
|
|
|
|
|
|
|
|
|
symbol_ptr = fix_ptr->fx_addsy;
|
|
|
|
|
|
|
|
|
|
/* If this relocation is attached to a symbol then it's ok
|
|
|
|
|
to output it */
|
|
|
|
|
if (fix_ptr->fx_r_type == RELOC_32)
|
|
|
|
|
{
|
|
|
|
|
/* cons likes to create reloc32's whatever the size of the reloc..
|
|
|
|
|
*/
|
|
|
|
|
switch (fix_ptr->fx_size)
|
|
|
|
|
{
|
|
|
|
|
case 2:
|
|
|
|
|
intr->r_type = R_IMM16;
|
|
|
|
|
break;
|
|
|
|
|
case 1:
|
|
|
|
|
intr->r_type = R_IMM8;
|
|
|
|
|
break;
|
|
|
|
|
default:
|
|
|
|
|
abort ();
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
else
|
|
|
|
|
{
|
|
|
|
|
intr->r_type = fix_ptr->fx_r_type;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
intr->r_vaddr = fix_ptr->fx_frag->fr_address + fix_ptr->fx_where + base;
|
|
|
|
|
intr->r_offset = fix_ptr->fx_offset;
|
|
|
|
|
|
|
|
|
|
/* Turn the segment of the symbol into an offset. */
|
|
|
|
|
if (symbol_ptr)
|
|
|
|
|
{
|
|
|
|
|
symbolS *dot;
|
|
|
|
|
|
|
|
|
|
dot = segment_info[S_GET_SEGMENT (symbol_ptr)].dot;
|
|
|
|
|
if (dot)
|
|
|
|
|
{
|
|
|
|
|
/* intr->r_offset -=
|
|
|
|
|
segment_info[S_GET_SEGMENT(symbol_ptr)].scnhdr.s_paddr;*/
|
|
|
|
|
intr->r_offset += S_GET_VALUE (symbol_ptr);
|
|
|
|
|
intr->r_symndx = dot->sy_number;
|
|
|
|
|
}
|
|
|
|
|
else
|
|
|
|
|
{
|
|
|
|
|
intr->r_symndx = symbol_ptr->sy_number;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
}
|
|
|
|
|
else
|
|
|
|
|
{
|
|
|
|
|
intr->r_symndx = -1;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
int
|
|
|
|
|
start_label (ptr)
|
|
|
|
|
char *ptr;
|
|
|
|
|
{
|
|
|
|
|
/* Check for :s.w */
|
|
|
|
|
if (isalpha (ptr[1]) && ptr[2] == '.')
|
|
|
|
|
return 0;
|
|
|
|
|
/* Check for :s */
|
|
|
|
|
if (isalpha (ptr[1]) && !isalpha (ptr[2]))
|
|
|
|
|
return 0;
|
|
|
|
|
return 1;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
int
|
|
|
|
|
tc_coff_sizemachdep (frag)
|
|
|
|
|
fragS *frag;
|
|
|
|
|
{
|
|
|
|
|
return md_relax_table[frag->fr_subtype].rlx_length;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/* end of tc-h8500.c */
|
|
|
|
|
|