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3c9b82ba | 1 | /* this is tc-z80.h |
d87bef3a | 2 | Copyright (C) 2005-2023 Free Software Foundation, Inc. |
3c9b82ba NC |
3 | |
4 | Contributed by Arnold Metselaar <arnold_m@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 | |
ec2655a6 | 10 | the Free Software Foundation; either version 3, or (at your option) |
3c9b82ba NC |
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 | |
6655dba2 SB |
27 | #ifndef OBJ_COFF |
28 | #define TARGET_FORMAT "elf32-z80" | |
29 | #endif | |
3c9b82ba | 30 | #define BFD_ARCH TARGET_ARCH |
3c9b82ba NC |
31 | #define TARGET_BYTES_BIG_ENDIAN 0 |
32 | ||
33 | /* If you define this macro, GAS will warn about the | |
34 | use of nonstandard escape sequences in a string. */ | |
35 | #define ONLY_STANDARD_ESCAPES | |
36 | ||
37 | /* GAS will call this function for any expression that can not be | |
38 | recognized. When the function is called, `input_line_pointer' | |
39 | will point to the start of the expression. */ | |
40 | #define md_operand(x) | |
41 | ||
42 | /* This should just call either `number_to_chars_bigendian' or | |
43 | `number_to_chars_littleendian', whichever is appropriate. On | |
44 | targets like the MIPS which support options to change the | |
45 | endianness, which function to call is a runtime decision. On | |
46 | other targets, `md_number_to_chars' can be a simple macro. */ | |
47 | #define md_number_to_chars number_to_chars_littleendian | |
48 | ||
49 | #define TC_COUNT_RELOC(x) 1 | |
50 | ||
51 | #define TC_COFF_FIX2RTYPE(fixP) tc_coff_fix2rtype (fixP) | |
52 | #define md_convert_frag(b,s,f) as_fatal ("convert_frag called\n") | |
53 | #define md_estimate_size_before_relax(f,s) \ | |
54 | (as_fatal (_("estimate_size_before_relax called")), 1) | |
55 | ||
56 | /* Define some functions to be called by generic code. */ | |
ed2917de | 57 | #define md_finish z80_md_finish |
3c9b82ba | 58 | #define md_start_line_hook() { if (z80_start_line_hook ()) continue; } |
00c06fdc | 59 | #define TC_CONS_FIX_NEW(f,w,s,e,r) z80_cons_fix_new ((f), (w), (s), (e)) |
3c9b82ba | 60 | |
ed2917de | 61 | extern void z80_md_finish (void); |
3c9b82ba | 62 | extern int z80_start_line_hook (void); |
134dcee5 | 63 | extern void z80_cons_fix_new (fragS *, int, int, expressionS *); |
3c9b82ba NC |
64 | |
65 | #define WORKING_DOT_WORD | |
66 | ||
67 | /* If you define this macro, it means that `tc_gen_reloc' may return | |
68 | multiple relocation entries for a single fixup. In this case, the | |
69 | return value of `tc_gen_reloc' is a pointer to a null terminated | |
70 | array. */ | |
71 | #undef RELOC_EXPANSION_POSSIBLE | |
72 | ||
73 | /* No shared lib support, so we don't need to ensure | |
74 | externally visible symbols can be overridden. */ | |
75 | #define EXTERN_FORCE_RELOC 0 | |
76 | ||
77 | /* Values passed to md_apply_fix3 don't include the symbol value. */ | |
78 | #define MD_APPLY_SYM_VALUE(FIX) 0 | |
79 | ||
6655dba2 | 80 | #define LISTING_WORD_SIZE 1 |
3c9b82ba | 81 | |
fb7ccfc1 AM |
82 | /* A single '=' is accepted as a comparison operator. */ |
83 | #define O_SINGLE_EQ O_eq | |
84 | ||
3c9b82ba NC |
85 | /* A '$' is used to refer to the current location or as a hex. prefix. */ |
86 | #define DOLLAR_DOT | |
87 | #define DOLLAR_AMBIGU 1 | |
6655dba2 | 88 | #define LOCAL_LABEL_PREFIX '.' |
3c9b82ba | 89 | #define LOCAL_LABELS_FB 1 |
6655dba2 | 90 | #define LOCAL_LABELS_DOLLAR 1 |
3c9b82ba NC |
91 | #define LITERAL_PREFIXPERCENT_BIN |
92 | #define NUMBERS_WITH_SUFFIX 1 | |
93 | #define NO_PSEUDO_DOT 1 | |
94 | /* We allow single quotes to delimit character constants as | |
95 | well, but it is cleaner to handle that in tc-z80.c. */ | |
96 | #define SINGLE_QUOTE_STRINGS | |
3c9b82ba | 97 | |
68e52bc7 SB |
98 | #define LABELS_WITHOUT_COLONS (z80_tc_labels_without_colon()) |
99 | extern int z80_tc_labels_without_colon (void); | |
100 | ||
3c9b82ba NC |
101 | /* An `.lcomm' directive with no explicit alignment parameter will |
102 | use this macro to set P2VAR to the alignment that a request for | |
103 | SIZE bytes will have. The alignment is expressed as a power of | |
104 | two. If no alignment should take place, the macro definition | |
105 | should do nothing. Some targets define a `.bss' directive that is | |
106 | also affected by this macro. The default definition will set | |
107 | P2VAR to the truncated power of two of sizes up to eight bytes. */ | |
108 | #define TC_IMPLICIT_LCOMM_ALIGNMENT(SIZE, P2VAR) (P2VAR) = 0 | |
109 | ||
3739860c | 110 | /* It does not make any sense to perform arithmetic on the numbers |
25045f79 AM |
111 | we use to identify registers. */ |
112 | #define md_register_arithmetic 0 | |
113 | ||
6655dba2 SB |
114 | #define TC_LABEL_IS_LOCAL z80_tc_label_is_local |
115 | extern int z80_tc_label_is_local (const char *name); | |
116 | ||
117 | #define elf_tc_final_processing z80_elf_final_processing | |
118 | extern void z80_elf_final_processing (void); | |
119 | ||
9fc0b501 SB |
120 | /* Define the column that represents the PC. */ |
121 | #define DWARF2_DEFAULT_RETURN_COLUMN 5 | |
122 | ||
123 | /* The stack grows down, and is only byte aligned. */ | |
124 | #define DWARF2_CIE_DATA_ALIGNMENT -1 | |
125 | ||
126 | /* Z80 instructions are 1 or 4 bytes long. */ | |
127 | #define DWARF2_LINE_MIN_INSN_LENGTH 1 | |
128 | ||
129 | /* 16 bits addresses are used on Z80. */ | |
130 | #define DWARF2_ADDR_SIZE(bfd) z80_dwarf2_addr_size(bfd) | |
131 | extern int z80_dwarf2_addr_size (const bfd *abfd); | |
132 | ||
133 | /* CFI hooks. */ | |
134 | #define tc_cfi_frame_initial_instructions z80_tc_frame_initial_instructions | |
135 | extern void z80_tc_frame_initial_instructions (void); | |
136 | ||
137 | #define tc_regname_to_dw2regnum z80_tc_regname_to_dw2regnum | |
138 | extern int z80_tc_regname_to_dw2regnum (const char *regname); | |
139 | ||
3c9b82ba | 140 | #endif |