1 /* tc-maxq.h -- Header file for the assembler(MAXQ)
3 Copyright 2004, 2005, 2006, 2007 Free Software Foundation, Inc.
5 Contributed by HCL Technologies Pvt. Ltd.
7 Written by Vineet Sharma(vineets@noida.hcltech.com) Inderpreet
8 S.(inderpreetb@noida.hcltech.com)
10 This file is part of GAS.
12 GAS is free software; you can redistribute it and/or modify it under the
13 terms of the GNU General Public License as published by the Free Software
14 Foundation; either version 3, or (at your option) any later version.
16 GAS is distributed in the hope that it will be useful, but WITHOUT ANY
17 WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
18 FOR A PARTICULAR PURPOSE. See the GNU General Public License for more
21 You should have received a copy of the GNU General Public License along
22 with GAS; see the file COPYING. If not, write to the Free Software
23 Foundation, 51 Franklin Street - Fifth Floor, Boston, MA 02110-1301, USA. */
32 /* `md_short_jump_size' `md_long_jump_size' `md_create_short_jump'
33 `md_create_long_jump' If `WORKING_DOT_WORD' is defined, GAS will not do
34 broken word processing (*note Broken words::.). Otherwise, you should set
35 `md_short_jump_size' to the size of a short jump (a jump that is just long
36 enough to jump around a long jmp) and `md_long_jump_size' to the size of a
37 long jump (a jump that can go anywhere in the function), You should define
38 `md_create_short_jump' to create a short jump around a long jump, and
39 define `md_create_long_jump' to create a long jump. */
40 #define WORKING_DOT_WORD
41 typedef enum _RELOC_ENUM
43 MAXQ_WORDDATA
= 5, /* Word+n. */
44 MAXQ_LONGDATA
= 2, /* Long+n. */
45 MAXQ_INTERSEGMENT
= 4, /* Text to any other segment. */
46 MAXQ_SHORTJUMP
= BFD_RELOC_16_PCREL_S2
, /* PC Relative. */
47 MAXQ_LONGJUMP
= 6, /* Absolute Jump. */
61 #ifndef MAX_OPERAND_SIZE
62 #define MAX_OPERAND_SIZE 255
65 #ifndef MAXQ_INSTRUCTION_SIZE
66 #define MAXQ_INSTRUCTION_SIZE 2 /* 16 - BITS */
69 #if MAXQ_INSTRUCTION_SIZE
70 #define MAXQ_OCTETS_PER_BYTE MAXQ_INSTRUCTION_SIZE
72 #define MAXQ_OCTETS_PER_BYTE OCTETS_PER_BYTE
75 /* if this macro is defined gas will use this instead of comment_chars. */
76 #define tc_comments_chars maxq20_comment_chars
78 #define tc_coff_symbol_emit_hook(a) ; /* not used */
80 #define md_section_align(SEGMENT, SIZE) (SIZE)
82 /* Locally defined symbol shoudnot be adjusted to section symbol. */
83 #define tc_fix_adjustable(FIX) 0
85 /* This specifies that the target has been defined as little endian -
87 #define TARGET_BYTES_BIG_ENDIAN 0
89 #define MAX_MEM_NAME_SIZE 12
90 #define MAX_REG_NAME_SIZE 7
91 #define MAX_MNEM_SIZE 8
93 #define END_OF_INSN '\0'
95 /* This macro is the BFD archetectureto pass to 'bfd_set_arch_mach'. */
96 #define TARGET_ARCH bfd_arch_maxq
98 /* This macro is the BFD machine number to pass to 'bfd_set_arch_mach'.
99 If not defines GAS will use 0. */
100 #define TARGET_MACH maxq20_mach ()
101 extern unsigned long maxq20_mach (void);
104 /* We define this macro to generate a fixup for a data allocation pseudo-op. */
105 #define TC_CONS_FIX_NEW(FRAG,OFF,LEN,EXP) maxq20_cons_fix_new (FRAG,OFF,LEN,EXP)
106 extern void maxq20_cons_fix_new (fragS
*, unsigned int, unsigned int, expressionS
*);
109 /* Define md_number_to_chars as the appropriate standard big endian or This
110 should just call either `number_to_chars_bigendian' or
111 `number_to_chars_littleendian', whichever is appropriate. On targets like
112 the MIPS which support options to change the endianness, which function to
113 call is a runtime decision. On other targets, `md_number_to_chars' can be
115 #define md_number_to_chars maxq_number_to_chars
116 extern void maxq_number_to_chars (char *, valueT
, int);
118 /* If this macro is defined, it is a pointer to a NULL terminated list of
119 characters which may appear in an operand. GAS already assumes that all
120 alphanumeric characters, and '$', '.', and '_' may appear in an
121 operand("symbol_char"in app.c). This macro may be defined to treat
122 additional characters as appearing in an operand. This affects the way in
123 which GAS removes whitespaces before passing the string to md_assemble. */
124 #define tc_symbol_chars_extra_symbol_chars
126 /* Define away the call to md_operand in the expression parsing code. This is
127 called whenever the expression parser can't parse the input and gives the
128 assembler backend a chance to deal with it instead. */
129 #define md_operand(x)
131 #define MAX_OPERANDS 2 /* Max operands per instruction. */
132 #define MAX_IMMEDIATE_OPERANDS 1 /* Max immediate operands per instruction. */
133 #define MAX_MEMORY_OPERANDS 1 /* Max memory operands per instruction. */
135 /* Define the prefix we are using while trying to use an immediate value in
136 an instruction. e.g move A[0], #03h. */
137 #define IMMEDIATE_PREFIX '#'
139 #define ABSOLUTE_PREFIX '@'
141 /* This here defines the opcode of the nop operation on the MAXQ. We did
142 declare it here when we tried to fill the align bites with nop's but GAS
143 only expects nop's to be single byte instruction. */
144 #define NOP_OPCODE (char)0xDA3A
146 #define SIZE_OF_PM sizeof(pmodule) /* Size of the structure. */
148 #endif /* TC_MAXQ_H */
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