1 /* this is tc-z80.h 2 Copyright (C) 2005-2016 Free Software Foundation, Inc. 3 4 Contributed by Arnold Metselaar <arnold_m (at) operamail.com> 5 6 This file is part of GAS, the GNU Assembler. 7 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 3, or (at your option) 11 any later version. 12 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. 17 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, 51 Franklin Street - Fifth Floor, Boston, MA 21 02110-1301, USA. */ 22 23 #ifndef TC_Z80 24 #define TC_Z80 25 26 #define TARGET_ARCH bfd_arch_z80 27 #define BFD_ARCH TARGET_ARCH 28 #define COFF_MAGIC 0x5A80 29 #define TARGET_MACH 0 30 #define TARGET_BYTES_BIG_ENDIAN 0 31 32 /* If you define this macro, GAS will warn about the 33 use of nonstandard escape sequences in a string. */ 34 #define ONLY_STANDARD_ESCAPES 35 36 /* GAS will call this function for any expression that can not be 37 recognized. When the function is called, `input_line_pointer' 38 will point to the start of the expression. */ 39 #define md_operand(x) 40 41 /* This should just call either `number_to_chars_bigendian' or 42 `number_to_chars_littleendian', whichever is appropriate. On 43 targets like the MIPS which support options to change the 44 endianness, which function to call is a runtime decision. On 45 other targets, `md_number_to_chars' can be a simple macro. */ 46 #define md_number_to_chars number_to_chars_littleendian 47 48 #define TC_COUNT_RELOC(x) 1 49 50 #define TC_COFF_FIX2RTYPE(fixP) tc_coff_fix2rtype (fixP) 51 #define md_convert_frag(b,s,f) as_fatal ("convert_frag called\n") 52 #define md_estimate_size_before_relax(f,s) \ 53 (as_fatal (_("estimate_size_before_relax called")), 1) 54 55 /* Define some functions to be called by generic code. */ 56 #define md_end z80_md_end 57 #define md_start_line_hook() { if (z80_start_line_hook ()) continue; } 58 #define TC_CONS_FIX_NEW(f,w,s,e,r) z80_cons_fix_new ((f), (w), (s), (e)) 59 60 extern void z80_md_end (void); 61 extern int z80_start_line_hook (void); 62 extern void z80_cons_fix_new (fragS *, int, int, expressionS *); 63 64 #define WORKING_DOT_WORD 65 66 /* If you define this macro, it means that `tc_gen_reloc' may return 67 multiple relocation entries for a single fixup. In this case, the 68 return value of `tc_gen_reloc' is a pointer to a null terminated 69 array. */ 70 #undef RELOC_EXPANSION_POSSIBLE 71 72 /* No shared lib support, so we don't need to ensure 73 externally visible symbols can be overridden. */ 74 #define EXTERN_FORCE_RELOC 0 75 76 /* Values passed to md_apply_fix3 don't include the symbol value. */ 77 #define MD_APPLY_SYM_VALUE(FIX) 0 78 79 #define LISTING_WORD_SIZE 2 80 81 /* A single '=' is accepted as a comparison operator. */ 82 #define O_SINGLE_EQ O_eq 83 84 /* A '$' is used to refer to the current location or as a hex. prefix. */ 85 #define DOLLAR_DOT 86 #define DOLLAR_AMBIGU 1 87 #define LOCAL_LABELS_FB 1 88 #define LITERAL_PREFIXPERCENT_BIN 89 #define NUMBERS_WITH_SUFFIX 1 90 #define NO_PSEUDO_DOT 1 91 /* We allow single quotes to delimit character constants as 92 well, but it is cleaner to handle that in tc-z80.c. */ 93 #define SINGLE_QUOTE_STRINGS 94 #define NO_STRING_ESCAPES 95 96 /* An `.lcomm' directive with no explicit alignment parameter will 97 use this macro to set P2VAR to the alignment that a request for 98 SIZE bytes will have. The alignment is expressed as a power of 99 two. If no alignment should take place, the macro definition 100 should do nothing. Some targets define a `.bss' directive that is 101 also affected by this macro. The default definition will set 102 P2VAR to the truncated power of two of sizes up to eight bytes. */ 103 #define TC_IMPLICIT_LCOMM_ALIGNMENT(SIZE, P2VAR) (P2VAR) = 0 104 105 /* It does not make any sense to perform arithmetic on the numbers 106 we use to identify registers. */ 107 #define md_register_arithmetic 0 108 109 #endif 110
