9497f5ac6b
- allowing true forward references (which will always assume the referenced symbols have at the point of use) through the new .eqv pseudo-op and the new == operator - disallowing changing .equiv-generated equates (so that the protection this provides is both forward and backward) - snapshotting equates when their value gets changed so that previous uses don't get affected by the new value. - allowing expressions in places where absolute expressions (or register names) are needed which were not completely resolvable at the point of their definition but which are fully resolvable at the point of use In addition it fixes PR/288.
127 lines
4.2 KiB
C
127 lines
4.2 KiB
C
/* tc-tic54x.h -- Header file for tc-tic54x.c
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Copyright 1999, 2000, 2001 Free Software Foundation, Inc.
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Contributed by Timothy Wall (twall@alum.mit.edu)
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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, 51 Franklin Street - Fifth Floor, Boston, MA
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02110-1301, USA. */
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#ifndef _TC_TIC54X_H_
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#define _TC_TIC54X_H_
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/* select the proper coff format (see obj-coff.h) */
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#define TC_TIC54X
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#define TARGET_BYTES_BIG_ENDIAN 0
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#define OCTETS_PER_BYTE_POWER 1
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#define TARGET_ARCH bfd_arch_tic54x
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#define WORKING_DOT_WORD 1
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#define MAX_OPERANDS 4
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#define PARALLEL_SEPARATOR '|'
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#define LABELS_WITHOUT_COLONS 1
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/* accept 0FFFFh, 1010b, etc. */
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#define NUMBERS_WITH_SUFFIX 1
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/* $ is section program counter */
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#define DOLLAR_DOT 1
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/* accept parallel lines like
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add #1,a || ld #1, b
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(may also be split across lines)
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*/
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#define DOUBLEBAR_PARALLEL 1
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/* affects preprocessor */
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#define KEEP_WHITE_AROUND_COLON 1
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struct bit_info
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{
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segT seg;
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#define TYPE_SPACE 0
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#define TYPE_BES 1
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#define TYPE_FIELD 2
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int type;
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symbolS *sym;
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valueT value;
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char *where;
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int offset;
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};
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/* We sometimes need to keep track of bit offsets within words */
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#define TC_FRAG_TYPE int
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#define TC_FRAG_INIT(FRAGP) do {(FRAGP)->tc_frag_data = 0;}while (0)
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/* tell GAS whether the given token is indeed a code label */
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#define TC_START_LABEL_WITHOUT_COLON(c,ptr) tic54x_start_label(c,ptr)
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extern int tic54x_start_label PARAMS((int, char *));
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/* custom handling for relocations in cons expressions */
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#define TC_CONS_FIX_NEW(FRAG,OFF,LEN,EXP) tic54x_cons_fix_new(FRAG,OFF,LEN,EXP)
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extern void tic54x_cons_fix_new PARAMS((fragS *,int,int,expressionS *));
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/* Define md_number_to_chars as the appropriate standard big endian or
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little endian function. Mostly littleendian, but longwords and floats are
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stored MS word first.
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*/
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#define md_number_to_chars tic54x_number_to_chars
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extern void tic54x_number_to_chars (char *, valueT, int);
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#define tc_adjust_symtab() tic54x_adjust_symtab()
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extern void tic54x_adjust_symtab (void);
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#define tc_unrecognized_line(ch) tic54x_unrecognized_line(ch)
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extern int tic54x_unrecognized_line (int ch);
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#define md_parse_name(s,e,m,c) tic54x_parse_name(s,e)
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extern int tic54x_parse_name (char *name, expressionS *e);
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#define md_undefined_symbol(s) tic54x_undefined_symbol(s)
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extern symbolS *tic54x_undefined_symbol (char *name);
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#define md_macro_start() tic54x_macro_start()
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extern void tic54x_macro_start (void);
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#define md_macro_end() tic54x_macro_end()
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extern void tic54x_macro_end (void);
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#define md_macro_info(args) tic54x_macro_info(args)
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struct macro_struct;
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extern void tic54x_macro_info PARAMS((const struct macro_struct *));
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#define tc_frob_label(sym) tic54x_define_label (sym)
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extern void tic54x_define_label PARAMS((symbolS *));
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#define md_start_line_hook() tic54x_start_line_hook()
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extern void tic54x_start_line_hook (void);
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#define md_estimate_size_before_relax(f,s) \
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tic54x_estimate_size_before_relax(f,s)
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extern int tic54x_estimate_size_before_relax(fragS *, segT);
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#define md_relax_frag(seg, f,s) tic54x_relax_frag(f,s)
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extern int tic54x_relax_frag(fragS *, long);
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#define md_convert_frag(b,s,f) tic54x_convert_frag(b,s,f)
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extern void tic54x_convert_frag(bfd *, segT, fragS *);
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/* Other things we don't support... */
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/* Define away the call to md_operand in the expression parsing code.
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This is called whenever the expression parser can't parse the input
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and gives the assembler backend a chance to deal with it instead. */
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#define md_operand(X)
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/* spruce up the listing output */
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#define LISTING_WORD_SIZE 2
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extern void tic54x_global (int);
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#endif
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