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Diffstat (limited to 'gas/config/tc-m88k.h')
| -rw-r--r-- | gas/config/tc-m88k.h | 108 |
1 files changed, 108 insertions, 0 deletions
diff --git a/gas/config/tc-m88k.h b/gas/config/tc-m88k.h new file mode 100644 index 0000000000..426b697280 --- /dev/null +++ b/gas/config/tc-m88k.h @@ -0,0 +1,108 @@ +/* m88k.h -- Assembler for the Motorola 88000 + Contributed by Devon Bowen of Buffalo University + and Torbjorn Granlund of the Swedish Institute of Computer Science. + Copyright (C) 1989, 90, 91, 92, 93, 94, 95, 96, 1997 + Free Software Foundation, Inc. + +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 2, 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, 59 Temple Place - Suite 330, Boston, MA +02111-1307, USA. */ + +#define TC_M88K + +#define TARGET_BYTES_BIG_ENDIAN 1 + +#ifdef M88KCOFF +#define COFF_MAGIC MC88OMAGIC +#define BFD_ARCH bfd_arch_m88k +#define COFF_FLAGS F_AR32W +#endif + +#define NEED_FX_R_TYPE +#define TC_KEEP_FX_OFFSET +#define TC_CONS_RELOC RELOC_32 + +/* different type of relocation available in the m88k */ + +enum reloc_type +{ + RELOC_LO16, /* lo16(sym) */ + RELOC_HI16, /* hi16(sym) */ + RELOC_PC16, /* bb0, bb1, bcnd */ + RELOC_PC26, /* br, bsr */ + RELOC_32, /* jump tables, etc */ + RELOC_IW16, /* global access through linker regs 28 */ + NO_RELOC +}; + +struct reloc_info_m88k +{ + unsigned long int r_address; + unsigned int r_symbolnum:24; + unsigned int r_extern:1; + unsigned int r_pad:3; + enum reloc_type r_type:4; + long int r_addend; +}; + +#define relocation_info reloc_info_m88k + +/* The m88k uses '@' to start local labels. */ +#define LEX_AT (LEX_BEGIN_NAME | LEX_NAME) + +#ifndef BFD_ASSEMBLER +#define LOCAL_LABEL(name) \ + ((name[0] =='@' && (name [1] == 'L' || name [1] == '.')) \ + || (name[0] == 'L' && name[1] == '0' && name[2] == '\001')) +#endif + +/* The m88k uses pseudo-ops with no leading period. */ +#define NO_PSEUDO_DOT + +/* Don't warn on word overflow; it happens on %hi relocs. */ +#undef WARN_SIGNED_OVERFLOW_WORD + +#define md_convert_frag(b,s,f) {as_fatal (_("m88k convert_frag\n"));} + +/* We don't need to do anything special for undefined symbols. */ +#define md_undefined_symbol(s) 0 + +/* We have no special operand handling. */ +#define md_operand(e) + +#ifdef M88KCOFF + +/* Whether a reloc should be output. */ +#define TC_COUNT_RELOC(fixp) ((fixp)->fx_addsy != NULL) + +/* Get the BFD reloc type to use for a gas fixS structure. */ +#define TC_COFF_FIX2RTYPE(fixp) tc_coff_fix2rtype (fixp) + +/* No special hook needed for symbols. */ +#define tc_coff_symbol_emit_hook(s) + +/* Align sections to a four byte boundary. */ +#ifndef max +#define max(a,b) (((a) > (b)) ? (a) : (b)) +#endif +#define SUB_SEGMENT_ALIGN(SEG) max (section_alignment[(int) (SEG)], 4) + +/* We use a special alignment function to insert the correct nop + pattern in .init. */ +extern int m88k_do_align PARAMS ((int, const char *, int, int)); +#define md_do_align(n,fill,len,max,l) if (m88k_do_align(n,fill,max,len)) goto l + +#endif /* M88KCOFF */ |