1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
|
/* this is tc-z80.h
Copyright (C) 2005-2024 Free Software Foundation, Inc.
Contributed by Arnold Metselaar <arnold_m@operamail.com>
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 3, 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, 51 Franklin Street - Fifth Floor, Boston, MA
02110-1301, USA. */
#ifndef TC_Z80
#define TC_Z80
#define TARGET_ARCH bfd_arch_z80
#ifndef OBJ_COFF
#define TARGET_FORMAT "elf32-z80"
#endif
#define BFD_ARCH TARGET_ARCH
#define TARGET_BYTES_BIG_ENDIAN 0
/* If you define this macro, GAS will warn about the
use of nonstandard escape sequences in a string. */
#define ONLY_STANDARD_ESCAPES
/* GAS will call this function for any expression that can not be
recognized. When the function is called, `input_line_pointer'
will point to the start of the expression. */
#define md_operand(x)
/* This should just call either `number_to_chars_bigendian' or
`number_to_chars_littleendian', whichever is appropriate. On
targets like the MIPS which support options to change the
endianness, which function to call is a runtime decision. On
other targets, `md_number_to_chars' can be a simple macro. */
#define md_number_to_chars number_to_chars_littleendian
#define TC_COUNT_RELOC(x) 1
#define TC_COFF_FIX2RTYPE(fixP) tc_coff_fix2rtype (fixP)
#define md_convert_frag(b,s,f) as_fatal ("convert_frag called\n")
#define md_estimate_size_before_relax(f,s) \
(as_fatal (_("estimate_size_before_relax called")), 1)
/* Define some functions to be called by generic code. */
#define md_finish z80_md_finish
#define md_start_line_hook() { if (z80_start_line_hook ()) continue; }
#define TC_CONS_FIX_NEW(f,w,s,e,r) z80_cons_fix_new ((f), (w), (s), (e))
extern void z80_md_finish (void);
extern int z80_start_line_hook (void);
extern void z80_cons_fix_new (fragS *, int, int, expressionS *);
#define WORKING_DOT_WORD
/* If you define this macro, it means that `tc_gen_reloc' may return
multiple relocation entries for a single fixup. In this case, the
return value of `tc_gen_reloc' is a pointer to a null terminated
array. */
#undef RELOC_EXPANSION_POSSIBLE
/* No shared lib support, so we don't need to ensure
externally visible symbols can be overridden. */
#define EXTERN_FORCE_RELOC 0
/* Values passed to md_apply_fix3 don't include the symbol value. */
#define MD_APPLY_SYM_VALUE(FIX) 0
#define LISTING_WORD_SIZE 1
/* A single '=' is accepted as a comparison operator. */
#define O_SINGLE_EQ O_eq
/* A '$' is used to refer to the current location or as a hex. prefix. */
#define DOLLAR_DOT
#define DOLLAR_AMBIGU 1
#define LOCAL_LABEL_PREFIX '.'
#define LOCAL_LABELS_FB 1
#define LOCAL_LABELS_DOLLAR 1
#define LITERAL_PREFIXPERCENT_BIN
#define NUMBERS_WITH_SUFFIX 1
#define NO_PSEUDO_DOT 1
/* We allow single quotes to delimit character constants as
well, but it is cleaner to handle that in tc-z80.c. */
#define SINGLE_QUOTE_STRINGS
#define LABELS_WITHOUT_COLONS (z80_tc_labels_without_colon())
extern int z80_tc_labels_without_colon (void);
/* An `.lcomm' directive with no explicit alignment parameter will
use this macro to set P2VAR to the alignment that a request for
SIZE bytes will have. The alignment is expressed as a power of
two. If no alignment should take place, the macro definition
should do nothing. Some targets define a `.bss' directive that is
also affected by this macro. The default definition will set
P2VAR to the truncated power of two of sizes up to eight bytes. */
#define TC_IMPLICIT_LCOMM_ALIGNMENT(SIZE, P2VAR) (P2VAR) = 0
/* It does not make any sense to perform arithmetic on the numbers
we use to identify registers. */
#define md_register_arithmetic 0
#define TC_LABEL_IS_LOCAL z80_tc_label_is_local
extern int z80_tc_label_is_local (const char *name);
#define elf_tc_final_processing z80_elf_final_processing
extern void z80_elf_final_processing (void);
/* Define the column that represents the PC. */
#define DWARF2_DEFAULT_RETURN_COLUMN 5
/* The stack grows down, and is only byte aligned. */
#define DWARF2_CIE_DATA_ALIGNMENT -1
/* Z80 instructions are 1 or 4 bytes long. */
#define DWARF2_LINE_MIN_INSN_LENGTH 1
/* 16 bits addresses are used on Z80. */
#define DWARF2_ADDR_SIZE(bfd) z80_dwarf2_addr_size(bfd)
extern int z80_dwarf2_addr_size (const bfd *abfd);
/* CFI hooks. */
#define tc_cfi_frame_initial_instructions z80_tc_frame_initial_instructions
extern void z80_tc_frame_initial_instructions (void);
#define tc_regname_to_dw2regnum z80_tc_regname_to_dw2regnum
extern int z80_tc_regname_to_dw2regnum (const char *regname);
#endif
|
