1 /* This file is tc-msp430.h
2 Copyright (C) 2002 Free Software Foundation, Inc.
4 Contributed by Dmitry Diky <diwil@mail.ru>
6 This file is part of GAS, the GNU Assembler.
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)
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.
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 the Free
20 Software Foundation, 59 Temple Place - Suite 330, Boston, MA
24 #error MSP430 support requires BFD_ASSEMBLER
28 /* By convention, you should define this macro in the `.h' file. For
29 example, `tc-m68k.h' defines `TC_M68K'. You might have to use this
30 if it is necessary to add CPU specific code to the object format
33 #define TARGET_FORMAT "elf32-msp430"
34 /* This macro is the BFD target name to use when creating the output
35 file. This will normally depend upon the `OBJ_FMT' macro. */
37 #define TARGET_ARCH bfd_arch_msp430
38 /* This macro is the BFD architecture to pass to `bfd_set_arch_mach'. */
41 /* This macro is the BFD machine number to pass to
42 `bfd_set_arch_mach'. If it is not defined, GAS will use 0. */
44 #define TARGET_BYTES_BIG_ENDIAN 0
45 /* You should define this macro to be non-zero if the target is big
46 endian, and zero if the target is little endian. */
48 #define ONLY_STANDARD_ESCAPES
49 /* If you define this macro, GAS will warn about the use of
50 nonstandard escape sequences in a string. */
53 /* GAS will call this function for any expression that can not be
54 recognized. When the function is called, `input_line_pointer'
55 will point to the start of the expression. */
57 #define md_number_to_chars number_to_chars_littleendian
58 /* This should just call either `number_to_chars_bigendian' or
59 `number_to_chars_littleendian', whichever is appropriate. On
60 targets like the MIPS which support options to change the
61 endianness, which function to call is a runtime decision. On
62 other targets, `md_number_to_chars' can be a simple macro. */
64 #define WORKING_DOT_WORD
68 `md_create_short_jump'
70 If `WORKING_DOT_WORD' is defined, GAS will not do broken word
71 processing (*note Broken words::.). Otherwise, you should set
72 `md_short_jump_size' to the size of a short jump (a jump that is
73 just long enough to jump around a long jmp) and
74 `md_long_jump_size' to the size of a long jump (a jump that can go
75 anywhere in the function), You should define
76 `md_create_short_jump' to create a short jump around a long jump,
77 and define `md_create_long_jump' to create a long jump. */
81 #define TC_HANDLES_FX_DONE
83 #undef RELOC_EXPANSION_POSSIBLE
84 /* If you define this macro, it means that `tc_gen_reloc' may return
85 multiple relocation entries for a single fixup. In this case, the
86 return value of `tc_gen_reloc' is a pointer to a null terminated
89 #define MD_PCREL_FROM_SECTION(FIXP, SEC) md_pcrel_from_section(FIXP, SEC)
90 /* If you define this macro, it should return the offset between the
91 address of a PC relative fixup and the position from which the PC
92 relative adjustment should be made. On many processors, the base
93 of a PC relative instruction is the next instruction, so this
94 macro would return the length of an instruction. */
96 extern long md_pcrel_from_section
PARAMS ((struct fix
*, segT
));
98 #define LISTING_WORD_SIZE 2
99 /* The number of bytes to put into a word in a listing. This affects
100 the way the bytes are clumped together in the listing. For
101 example, a value of 2 might print `1234 5678' where a value of 1
102 would print `12 34 56 78'. The default value is 4. */
105 /* MSP430 port does not use `$' as a logical line separator */
107 #define TC_IMPLICIT_LCOMM_ALIGNMENT(SIZE, P2VAR) (P2VAR) = 0
108 /* An `.lcomm' directive with no explicit alignment parameter will
109 use this macro to set P2VAR to the alignment that a request for
110 SIZE bytes will have. The alignment is expressed as a power of
111 two. If no alignment should take place, the macro definition
112 should do nothing. Some targets define a `.bss' directive that is
113 also affected by this macro. The default definition will set
114 P2VAR to the truncated power of two of sizes up to eight bytes. */
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