1 /* tc-maxq.h -- Header file for the asssembler(MAXQ) 2 3 Copyright 2004, 2005 Free Software Foundation, Inc. 4 5 Contributed by HCL Technologies Pvt. Ltd. 6 7 Written by Vineet Sharma(vineets@noida.hcltech.com) Inderpreet 8 S.(inderpreetb@noida.hcltech.com) 9 10 This file is part of GAS. 11 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 2, or (at your option) any later version. 15 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 19 details. 20 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. */ 24 25 #ifndef _TC_MAXQ_H_ 26 #define _TC_MAXQ_H_ 27 28 #ifndef NO_RELOC 29 #define NO_RELOC 0 30 #endif 31 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 42 { 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. */ 48 EXTERNAL_RELOC = 8, 49 INTERSEGMENT_RELOC 50 } 51 RELOC_ENUM; 52 53 #ifndef MAX_STACK 54 #define MAX_STACK 0xf 55 #endif 56 57 #ifndef TC_MAXQ20 58 #define TC_MAXQ20 1 59 #endif 60 61 #ifndef MAX_OPERAND_SIZE 62 #define MAX_OPERAND_SIZE 255 63 #endif 64 65 #ifndef MAXQ_INSTRUCTION_SIZE 66 #define MAXQ_INSTRUCTION_SIZE 2 /* 16 - BITS */ 67 #endif 68 69 #if MAXQ_INSTRUCTION_SIZE 70 #define MAXQ_OCTETS_PER_BYTE MAXQ_INSTRUCTION_SIZE 71 #else 72 #define MAXQ_OCTETS_PER_BYTE OCTETS_PER_BYTE 73 #endif 74 75 /* if this macro is defined gas will use this instead of comment_chars. */ 76 #define tc_comments_chars maxq20_comment_chars 77 78 #define tc_coff_symbol_emit_hook(a) ; /* not used */ 79 80 #define md_section_align(SEGMENT, SIZE) (SIZE) 81 82 /* Locally defined symbol shoudnot be adjusted to section symbol. */ 83 #define tc_fix_adjustable(FIX) 0 84 85 /* This specifies that the target has been defined as little endian - 86 default. */ 87 #define TARGET_BYTES_BIG_ENDIAN 0 88 89 #define MAX_MEM_NAME_SIZE 12 90 #define MAX_REG_NAME_SIZE 7 91 #define MAX_MNEM_SIZE 8 92 93 #define END_OF_INSN '\0' 94 95 /* This macro is the BFD archetectureto pass to 'bfd_set_arch_mach'. */ 96 #define TARGET_ARCH bfd_arch_maxq 97 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); 102 103 #ifndef LEX_AT 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 *); 107 #endif 108 109 /* 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 114 a simple macro. */ 115 #define md_number_to_chars maxq_number_to_chars 116 extern void maxq_number_to_chars (char *, valueT, int); 117 118 /* If this macro is defined, it is a pointer to a NULL terminated list of 119 chracters which may appear in an operand. GAS already assumes that all 120 alphanumeric chracters, and '$', '.', and '_' may appear in an 121 operand("symbol_char"in app.c). This macro may be defined to treat 122 additional chracters 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 125 126 /* 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) 130 131 #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. */ 134 135 /* 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 '#' 138 139 #define ABSOLUTE_PREFIX '@' 140 141 /* 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 145 146 #define SIZE_OF_PM sizeof(pmodule) /* Size of the structure. */ 147 148 #endif /* TC_MAXQ_H */ 149