gas/config/tc-maxq.h

   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 */