[deliverable/binutils-gdb.git] / gas / config / tc-tic4x.h

/* tc-tic4x.h -- Assemble for the Texas TMS320C[34]X.
   Copyright (C) 1997, 2002, 2003 Free Software Foundation.
   
   Contributed by Michael P. Hayes (m.hayes@elec.canterbury.ac.nz)

   This file is part of GAS, the GNU Assembler.

   GAS is free software; you can redistribute it and/or modify
   it under the terms of the GNU General Public License as published by
   the Free Software Foundation; either version 2, or (at your option)
   any later version.

   GAS is distributed in the hope that it will be useful,
   but WITHOUT ANY WARRANTY; without even the implied warranty of
   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
   GNU General Public License for more details.

   You should have received a copy of the GNU General Public License
   along with GAS; see the file COPYING.  If not, write to
   the Free Software Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.  */

#define TC_TIC4X
#define TIC4X

#ifndef BFD_ASSEMBLER
#error TMS320C4x requires BFD_ASSEMBLER
#endif

#define TARGET_ARCH bfd_arch_tic4x

#define WORKING_DOT_WORD

/* There are a number of different formats used for local labels.  gas
   expects local labels either of the form `10$:' or `n:', where n is
   a single digit.  When LOCAL_LABEL_DOLLARS is defined labels of the
   form `10$:' are expected.  When LOCAL_LABEL_FB is defined labels of
   the form `n:' are expected.  The latter are expected to be referred
   to using `nf' for a forward reference of `nb' for a backward
   reference.

   The local labels expected by the TI tools are of the form `$n:',
   where the colon is optional.  Now the $ character is considered to
   be valid symbol name character, so gas doesn't recognise our local
   symbols by default.  Defining LEX_DOLLAR to be 1 means that gas
   won't allow labels starting with $ and thus the hook
   tc_unrecognized_line() will be called from read.c.  We can thus
   parse lines starting with $n as having local labels.

   The other problem is the forward reference of local labels.  If a
   symbol is undefined, symbol_make() calls the md_undefined_symbol()
   hook where we create a local label if recognised.  */

/* Don't stick labels starting with 'L' into symbol table of COFF file. */
#define LOCAL_LABEL(name) ((name)[0] == '$' || (name)[0] == 'L')

#define TARGET_BYTES_BIG_ENDIAN	0
#define OCTETS_PER_BYTE_POWER 	2

#define TARGET_ARCH		bfd_arch_tic4x
#define BFD_ARCH                TARGET_ARCH

#define TC_COUNT_RELOC(x) 	(x->fx_addsy)
#define TC_CONS_RELOC 		RELOC_32
#define TC_COFF_FIX2RTYPE(fixP) tc_coff_fix2rtype (fixP)
#define TC_COFF_SIZEMACHDEP(frag) tc_coff_sizemachdep (frag)
#define NEED_FX_R_TYPE

#define NOP_OPCODE              0x0c800000

#define reloc_type 		int

#define NO_RELOC 		0

/* '||' denotes parallel instruction */
#define DOUBLEBAR_PARALLEL      1

/* Labels are not required to have a colon for a suffix.  */
#define LABELS_WITHOUT_COLONS 	1

/* Use $ as the section program counter (SPC). */
#define DOLLAR_DOT

/* Accept numbers with a suffix, e.g. 0ffffh, 1010b.  */
#define NUMBERS_WITH_SUFFIX 	1

extern int tic4x_unrecognized_line PARAMS ((int));
#define tc_unrecognized_line(c) tic4x_unrecognized_line (c)

#define md_number_to_chars number_to_chars_littleendian

extern int tic4x_do_align PARAMS ((int, const char *, int, int));
#define md_do_align(n,fill,len,max,label) if( tic4x_do_align (n,fill,len,max) ) goto label;

/* Start of line hook to remove parallel instruction operator || */
extern void tic4x_start_line PARAMS ((void));
#define md_start_line_hook() tic4x_start_line()

extern void tic4x_cleanup PARAMS ((void));
#define md_cleanup() tic4x_cleanup()

extern void tic4x_end PARAMS ((void));
#define md_end() tic4x_end()
Commit	Line	Data
026df7c5	1	/* tc-tic4x.h -- Assemble for the Texas TMS320C[34]X.
be33c5dd	2	Copyright (C) 1997, 2002, 2003 Free Software Foundation.
026df7c5 NC	3
	4	Contributed by Michael P. Hayes (m.hayes@elec.canterbury.ac.nz)
	5
	6	This file is part of GAS, the GNU Assembler.
	7
	8	GAS is free software; you can redistribute it and/or modify
	9	it under the terms of the GNU General Public License as published by
	10	the Free Software Foundation; either version 2, or (at your option)
	11	any later version.
	12
	13	GAS is distributed in the hope that it will be useful,
	14	but WITHOUT ANY WARRANTY; without even the implied warranty of
	15	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
	16	GNU General Public License for more details.
	17
	18	You should have received a copy of the GNU General Public License
	19	along with GAS; see the file COPYING. If not, write to
	20	the Free Software Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
	21
	22	#define TC_TIC4X
be33c5dd	23	#define TIC4X
026df7c5 NC	24
	25	#ifndef BFD_ASSEMBLER
	26	#error TMS320C4x requires BFD_ASSEMBLER
	27	#endif
	28
	29	#define TARGET_ARCH bfd_arch_tic4x
	30
	31	#define WORKING_DOT_WORD
	32
	33	/* There are a number of different formats used for local labels. gas
	34	expects local labels either of the form `10$:' or `n:', where n is
	35	a single digit. When LOCAL_LABEL_DOLLARS is defined labels of the
	36	form `10$:' are expected. When LOCAL_LABEL_FB is defined labels of
	37	the form `n:' are expected. The latter are expected to be referred
	38	to using `nf' for a forward reference of `nb' for a backward
	39	reference.
	40
	41	The local labels expected by the TI tools are of the form `$n:',
	42	where the colon is optional. Now the $ character is considered to
	43	be valid symbol name character, so gas doesn't recognise our local
	44	symbols by default. Defining LEX_DOLLAR to be 1 means that gas
	45	won't allow labels starting with $ and thus the hook
	46	tc_unrecognized_line() will be called from read.c. We can thus
	47	parse lines starting with $n as having local labels.
	48
	49	The other problem is the forward reference of local labels. If a
	50	symbol is undefined, symbol_make() calls the md_undefined_symbol()
	51	hook where we create a local label if recognised. */
	52
	53	/* Don't stick labels starting with 'L' into symbol table of COFF file. */
	54	#define LOCAL_LABEL(name) ((name)[0] == '$' \|\| (name)[0] == 'L')
	55
	56	#define TARGET_BYTES_BIG_ENDIAN 0
	57	#define OCTETS_PER_BYTE_POWER 2
	58
	59	#define TARGET_ARCH bfd_arch_tic4x
	60	#define BFD_ARCH TARGET_ARCH
	61
	62	#define TC_COUNT_RELOC(x) (x->fx_addsy)
	63	#define TC_CONS_RELOC RELOC_32
	64	#define TC_COFF_FIX2RTYPE(fixP) tc_coff_fix2rtype (fixP)
	65	#define TC_COFF_SIZEMACHDEP(frag) tc_coff_sizemachdep (frag)
	66	#define NEED_FX_R_TYPE
	67
247b1fe6 SS	68	#define NOP_OPCODE 0x0c800000
247b1fe6 SS	69
026df7c5 NC	70	#define reloc_type int
	71
	72	#define NO_RELOC 0
	73
a1f3c24c SS	74	/* '\|\|' denotes parallel instruction */
	75	#define DOUBLEBAR_PARALLEL 1
	76
026df7c5 NC	77	/* Labels are not required to have a colon for a suffix. */
	78	#define LABELS_WITHOUT_COLONS 1
	79
	80	/* Use $ as the section program counter (SPC). */
	81	#define DOLLAR_DOT
	82
	83	/* Accept numbers with a suffix, e.g. 0ffffh, 1010b. */
	84	#define NUMBERS_WITH_SUFFIX 1
	85
be33c5dd SS	86	extern int tic4x_unrecognized_line PARAMS ((int));
be33c5dd SS	87	#define tc_unrecognized_line(c) tic4x_unrecognized_line (c)
026df7c5 NC	88
	89	#define md_number_to_chars number_to_chars_littleendian
	90
be33c5dd SS	91	extern int tic4x_do_align PARAMS ((int, const char *, int, int));
be33c5dd SS	92	#define md_do_align(n,fill,len,max,label) if( tic4x_do_align (n,fill,len,max) ) goto label;
026df7c5 NC	93
026df7c5 NC	94	/* Start of line hook to remove parallel instruction operator \|\| */
be33c5dd SS	95	extern void tic4x_start_line PARAMS ((void));
be33c5dd SS	96	#define md_start_line_hook() tic4x_start_line()
026df7c5	97
be33c5dd SS	98	extern void tic4x_cleanup PARAMS ((void));
be33c5dd SS	99	#define md_cleanup() tic4x_cleanup()
026df7c5	100
be33c5dd SS	101	extern void tic4x_end PARAMS ((void));
be33c5dd SS	102	#define md_end() tic4x_end()
026df7c5	103