1 /* tc-ns32k.h -- Opcode table for National Semi 32k processor
2    Copyright (C) 1987-2021 Free Software Foundation, Inc.
3 
4    This file is part of GAS, the GNU Assembler.
5 
6    GAS is free software; you can redistribute it and/or modify
7    it under the terms of the GNU General Public License as published by
8    the Free Software Foundation; either version 3, or (at your option)
9    any later version.
10 
11    GAS is distributed in the hope that it will be useful,
12    but WITHOUT ANY WARRANTY; without even the implied warranty of
13    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
14    GNU General Public License for more details.
15 
16    You should have received a copy of the GNU General Public License
17    along with GAS; see the file COPYING.  If not, write to the Free
18    Software Foundation, 51 Franklin Street - Fifth Floor, Boston, MA
19    02110-1301, USA.  */
20 
21 #define TC_NS32K
22 
23 #define TARGET_BYTES_BIG_ENDIAN	0
24 
25 #define TC_PCREL_ADJUST(F) md_pcrel_adjust(F)
26 extern int md_pcrel_adjust (fragS *);
27 
28 #define NO_RELOC BFD_RELOC_NONE
29 
30 #define TARGET_ARCH		bfd_arch_ns32k
31 
32 #ifndef TARGET_FORMAT		/* Maybe defined in te-*.h.  */
33 #define TARGET_FORMAT		"a.out-pc532-mach"
34 #endif
35 
36 #define LOCAL_LABELS_FB 1
37 
38 #include "bit_fix.h"
39 
40 #ifdef SEQUENT_COMPATABILITY
41 #define DEF_MODEC 20
42 #define DEF_MODEL 21
43 #endif
44 
45 #ifndef DEF_MODEC
46 #define DEF_MODEC 20
47 #endif
48 
49 #ifndef DEF_MODEL
50 #define DEF_MODEL 20
51 #endif
52 
53 #define MAX_ARGS 4
54 #define ARG_LEN 50
55 
56 #define TC_CONS_FIX_NEW cons_fix_new_ns32k
57 extern void cons_fix_new_ns32k (fragS *, int, int, expressionS *,
58 				bfd_reloc_code_real_type);
59 
60 /* The NS32x32 has a non 0 nop instruction which should be used in aligns.  */
61 #define NOP_OPCODE 0xa2
62 
63 #define md_operand(x)
64 
65 extern const struct relax_type md_relax_table[];
66 #define TC_GENERIC_RELAX_TABLE md_relax_table
67 
68 #define TC_FRAG_TYPE				\
69   struct 					\
70     { 						\
71       fragS *      fr_opcode_fragP;		\
72       unsigned int fr_opcode_offset;		\
73       char         fr_bsr;			\
74     }
75 
76 #define TC_FRAG_INIT(X, MAX_BYTES)		\
77   do						\
78      {						\
79        frag_opcode_frag (X) = NULL;		\
80        frag_opcode_offset (X) = 0;		\
81        frag_bsr (X) = 0;			\
82      }						\
83   while (0)
84 
85 /* Accessor macros for things which may move around.  */
86 #define frag_opcode_frag(X)   (X)->tc_frag_data.fr_opcode_fragP
87 #define frag_opcode_offset(X) (X)->tc_frag_data.fr_opcode_offset
88 #define frag_bsr(X)           (X)->tc_frag_data.fr_bsr
89 
90 #define TC_FIX_TYPE				\
91   struct					\
92     {						\
93       fragS *      opcode_fragP;		\
94       bit_fixS *   fx_bit_fixP;			\
95       unsigned int opcode_offset;		\
96       unsigned int bsr : 1;			\
97       unsigned int fx_im_disp : 2;		\
98     }
99 
100 /* Accessor macros for things which may move around.
101    See comments in write.h.  */
102 #define fix_im_disp(X)       (X)->tc_fix_data.fx_im_disp
103 #define fix_bit_fixP(X)      (X)->tc_fix_data.fx_bit_fixP
104 #define fix_opcode_frag(X)   (X)->tc_fix_data.opcode_fragP
105 #define fix_opcode_offset(X) (X)->tc_fix_data.opcode_offset
106 #define fix_bsr(X)           (X)->tc_fix_data.bsr
107 
108 #define TC_INIT_FIX_DATA(X)			\
109   do						\
110      {						\
111        fix_opcode_frag(X) = NULL;		\
112        fix_opcode_offset(X) = 0;		\
113        fix_bit_fixP(X) = NULL;			\
114        fix_bsr(X) = 0;				\
115        fix_im_disp(X) = 0;			\
116      }						\
117   while (0)
118 
119 #define TC_FIX_DATA_PRINT(FILE, FIX)					\
120   do									\
121     {									\
122       fprintf ((FILE), "opcode_frag=%ld, operand offset=%d, bsr=%d, "	\
123 	       "im_disp=%d\n",						\
124 	       (unsigned long) fix_opcode_frag (FIX),			\
125 	       fix_opcode_offset (FIX),					\
126 	       fix_bsr (FIX),						\
127 	       fix_im_disp (FIX));					\
128     }									\
129   while (0)
130