xref: /netbsd-src/external/gpl3/binutils.old/dist/bfd/cpu-z80.c (revision e992f068c547fd6e84b3f104dc2340adcc955732)
1 /* BFD library support routines for the Z80 architecture.
2    Copyright (C) 2005-2022 Free Software Foundation, Inc.
3    Contributed by Arnold Metselaar <arnold_m@operamail.com>
4 
5    This file is part of BFD, the Binary File Descriptor library.
6 
7    This program is free software; you can redistribute it and/or modify
8    it under the terms of the GNU General Public License as published by
9    the Free Software Foundation; either version 3 of the License, or
10    (at your option) any later version.
11 
12    This program is distributed in the hope that it will be useful,
13    but WITHOUT ANY WARRANTY; without even the implied warranty of
14    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
15    GNU General Public License for more details.
16 
17    You should have received a copy of the GNU General Public License
18    along with this program; if not, write to the Free Software
19    Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston,
20    MA 02110-1301, USA.  */
21 
22 #include "sysdep.h"
23 #include "bfd.h"
24 #include "libbfd.h"
25 
26 const bfd_arch_info_type bfd_z80_arch;
27 
28 /* This routine is provided two arch_infos and
29    returns whether they'd be compatible.  */
30 
31 static const bfd_arch_info_type *
compatible(const bfd_arch_info_type * a,const bfd_arch_info_type * b)32 compatible (const bfd_arch_info_type *a, const bfd_arch_info_type *b)
33 {
34   if (a->arch != b->arch || a->arch != bfd_arch_z80)
35     return NULL;
36 
37   if (a->mach == b->mach)
38     return a;
39   switch (a->mach)
40     {
41     case bfd_mach_z80:
42     case bfd_mach_z80full:
43     case bfd_mach_z80strict:
44       switch (b->mach)
45 	{
46 	case bfd_mach_z80:
47 	case bfd_mach_z80full:
48 	case bfd_mach_z80strict:
49 	  return & bfd_z80_arch;
50 	case bfd_mach_z180:
51 	case bfd_mach_ez80_z80:
52 	case bfd_mach_ez80_adl:
53 	case bfd_mach_z80n:
54 	case bfd_mach_r800:
55 	  return b;
56 	}
57       break;
58     case bfd_mach_z80n:
59     case bfd_mach_r800:
60       switch (b->mach)
61 	{
62 	case bfd_mach_z80:
63 	case bfd_mach_z80full:
64 	case bfd_mach_z80strict:
65 	  return a;
66 	}
67       break;
68     case bfd_mach_z180:
69       switch (b->mach)
70 	{
71 	case bfd_mach_z80:
72 	case bfd_mach_z80full:
73 	case bfd_mach_z80strict:
74 	  return a;
75 	case bfd_mach_ez80_z80:
76 	case bfd_mach_ez80_adl:
77 	  return b;
78 	}
79       break;
80     case bfd_mach_ez80_z80:
81     case bfd_mach_ez80_adl:
82       switch (b->mach)
83 	{
84 	case bfd_mach_z80:
85 	case bfd_mach_z80full:
86 	case bfd_mach_z80strict:
87 	case bfd_mach_z180:
88 	case bfd_mach_ez80_z80:
89 	  return a;
90 	case bfd_mach_ez80_adl:
91 	  return b;
92 	}
93       break;
94     case bfd_mach_gbz80:
95        return NULL;
96     }
97 
98   return NULL;
99 }
100 
101 #define N(name,print,bits,default,next)  \
102  { 16, bits, 8, bfd_arch_z80, name, "z80", print, 0, default, \
103    compatible, bfd_default_scan, bfd_arch_default_fill, next, 0 }
104 
105 #define M(n) &arch_info_struct[n]
106 
107 static const bfd_arch_info_type arch_info_struct[] =
108 {
109   N (bfd_mach_z80,	 "z80",        16, true,  M(1)),
110   N (bfd_mach_z80strict, "z80-strict", 16, false, M(2)),
111   N (bfd_mach_z80full,	 "z80-full",   16, false, M(3)),
112   N (bfd_mach_r800,	 "r800",       16, false, M(4)),
113   N (bfd_mach_gbz80,	 "gbz80",      16, false, M(5)),
114   N (bfd_mach_z180,	 "z180",       16, false, M(6)),
115   N (bfd_mach_z80n,	 "z80n",       16, false, M(7)),
116   N (bfd_mach_ez80_z80,	 "ez80-z80",   16, false, M(8)),
117   N (bfd_mach_ez80_adl,	 "ez80-adl",   24, false, NULL)
118 };
119 
120 const bfd_arch_info_type bfd_z80_arch =
121   N (bfd_mach_z80,   "z80",   16, true,  M(1));
122