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

/* tc-tic4x.h -- Assemble for the Texas TMS320C[34]X.
   Copyright (C) 1997, 2002, 2003, 2005, 2007, 2008
   Free Software Foundation. Inc.
   
   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 3, 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, 51 Franklin Street - Fifth Floor,
   Boston, MA 02110-1301, USA.  */

#define TC_TIC4X
#define TIC4X

#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 TIC_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 (int);
#define tc_unrecognized_line(c) tic4x_unrecognized_line (c)

#define md_number_to_chars number_to_chars_littleendian

extern int tic4x_do_align (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 (void);
#define md_start_line_hook() tic4x_start_line()

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

extern void tic4x_end (void);
#define md_end() tic4x_end()
Commit	Line	Data
	1	/* tc-tic4x.h -- Assemble for the Texas TMS320C[34]X.
	2	Copyright (C) 1997, 2002, 2003, 2005, 2007, 2008
	3	Free Software Foundation. Inc.
	4
	5	Contributed by Michael P. Hayes (m.hayes@elec.canterbury.ac.nz)
	6
	7	This file is part of GAS, the GNU Assembler.
	8
	9	GAS is free software; you can redistribute it and/or modify
	10	it under the terms of the GNU General Public License as published by
	11	the Free Software Foundation; either version 3, or (at your option)
	12	any later version.
	13
	14	GAS is distributed in the hope that it will be useful,
	15	but WITHOUT ANY WARRANTY; without even the implied warranty of
	16	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
	17	GNU General Public License for more details.
	18
	19	You should have received a copy of the GNU General Public License
	20	along with GAS; see the file COPYING. If not, write to
	21	the Free Software Foundation, 51 Franklin Street - Fifth Floor,
	22	Boston, MA 02110-1301, USA. */
	23
	24	#define TC_TIC4X
	25	#define TIC4X
	26
	27	#define TARGET_ARCH bfd_arch_tic4x
	28
	29	#define WORKING_DOT_WORD
	30
	31	/* There are a number of different formats used for local labels. gas
	32	expects local labels either of the form `10$:' or `n:', where n is
	33	a single digit. When LOCAL_LABEL_DOLLARS is defined labels of the
	34	form `10$:' are expected. When LOCAL_LABEL_FB is defined labels of
	35	the form `n:' are expected. The latter are expected to be referred
	36	to using `nf' for a forward reference of `nb' for a backward
	37	reference.
	38
	39	The local labels expected by the TI tools are of the form `$n:',
	40	where the colon is optional. Now the $ character is considered to
	41	be valid symbol name character, so gas doesn't recognise our local
	42	symbols by default. Defining LEX_DOLLAR to be 1 means that gas
	43	won't allow labels starting with $ and thus the hook
	44	tc_unrecognized_line() will be called from read.c. We can thus
	45	parse lines starting with $n as having local labels.
	46
	47	The other problem is the forward reference of local labels. If a
	48	symbol is undefined, symbol_make() calls the md_undefined_symbol()
	49	hook where we create a local label if recognised. */
	50
	51	/* Don't stick labels starting with 'L' into symbol table of COFF file. */
	52	#define LOCAL_LABEL(name) ((name)[0] == '$' \|\| (name)[0] == 'L')
	53
	54	#define TARGET_BYTES_BIG_ENDIAN 0
	55	#define OCTETS_PER_BYTE_POWER 2
	56
	57	#define TARGET_ARCH bfd_arch_tic4x
	58
	59	#define TIC_NOP_OPCODE 0x0c800000
	60
	61	#define reloc_type int
	62
	63	#define NO_RELOC 0
	64
	65	/* '\|\|' denotes parallel instruction */
	66	#define DOUBLEBAR_PARALLEL 1
	67
	68	/* Labels are not required to have a colon for a suffix. */
	69	#define LABELS_WITHOUT_COLONS 1
	70
	71	/* Use $ as the section program counter (SPC). */
	72	#define DOLLAR_DOT
	73
	74	/* Accept numbers with a suffix, e.g. 0ffffh, 1010b. */
	75	#define NUMBERS_WITH_SUFFIX 1
	76
	77	extern int tic4x_unrecognized_line (int);
	78	#define tc_unrecognized_line(c) tic4x_unrecognized_line (c)
	79
	80	#define md_number_to_chars number_to_chars_littleendian
	81
	82	extern int tic4x_do_align (int, const char *, int, int);
	83	#define md_do_align(n,fill,len,max,label) if( tic4x_do_align (n,fill,len,max) ) goto label;
	84
	85	/* Start of line hook to remove parallel instruction operator \|\| */
	86	extern void tic4x_start_line (void);
	87	#define md_start_line_hook() tic4x_start_line()
	88
	89	extern void tic4x_cleanup (void);
	90	#define md_cleanup() tic4x_cleanup()
	91
	92	extern void tic4x_end (void);
	93	#define md_end() tic4x_end()
	94