1 /* tc-ns32k.h -- Opcode table for National Semi 32k processor
2    Copyright 1987, 1992, 1993, 1994, 1995, 1997, 2000, 2002
3    Free Software Foundation, Inc.
4 
5    This file is part of GAS, the GNU Assembler.
6 
7    GAS 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 2, or (at your option)
10    any later version.
11 
12    GAS 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 GAS; see the file COPYING.  If not, write to the Free
19    Software Foundation, 59 Temple Place - Suite 330, Boston, MA
20    02111-1307, USA.  */
21 
22 #define TC_NS32K
23 
24 #define TARGET_BYTES_BIG_ENDIAN	0
25 
26 #define TC_PCREL_ADJUST(F) md_pcrel_adjust(F)
27 extern int md_pcrel_adjust PARAMS((fragS *fragP));
28 
29 #ifdef BFD_ASSEMBLER
30 #define NO_RELOC BFD_RELOC_NONE
31 
32 #define TARGET_ARCH		bfd_arch_ns32k
33 
34 #ifndef TARGET_FORMAT		/* Maybe defined in te-*.h */
35 #define TARGET_FORMAT		"a.out-pc532-mach"
36 #endif
37 #else
38 #define NO_RELOC 0
39 #endif
40 
41 #define LOCAL_LABELS_FB 1
42 
43 #include "bit_fix.h"
44 
45 #define tc_aout_pre_write_hook(x)	{;}	/* not used */
46 #define tc_crawl_symbol_chain(a)	{;}	/* not used */
47 #define tc_headers_hook(a)		{;}	/* not used */
48 
49 #ifdef SEQUENT_COMPATABILITY
50 #define DEF_MODEC 20
51 #define DEF_MODEL 21
52 #endif
53 
54 #ifndef DEF_MODEC
55 #define DEF_MODEC 20
56 #endif
57 
58 #ifndef DEF_MODEL
59 #define DEF_MODEL 20
60 #endif
61 
62 #define MAX_ARGS 4
63 #define ARG_LEN 50
64 
65 #define TC_CONS_FIX_NEW cons_fix_new_ns32k
66 extern void fix_new_ns32k_exp PARAMS ((fragS *, int, int, expressionS *,
67 				       int, int, bit_fixS *, int, fragS *,
68 				       unsigned int));
69 
70 extern void fix_new_ns32k PARAMS ((fragS *, int, int, symbolS *, long,
71 				   int, int, bit_fixS *, int, fragS *,
72 				   unsigned int));
73 
74 extern void cons_fix_new_ns32k PARAMS ((fragS *, int, int, expressionS *));
75 
76 /* The NS32x32 has a non 0 nop instruction which should be used in aligns.  */
77 #define NOP_OPCODE 0xa2
78 
79 #define md_operand(x)
80 
81 extern const struct relax_type md_relax_table[];
82 #define TC_GENERIC_RELAX_TABLE md_relax_table
83 
84 #define TC_FRAG_TYPE				\
85   struct 					\
86     { 						\
87       fragS *      fr_opcode_fragP;		\
88       unsigned int fr_opcode_offset;		\
89       char         fr_bsr;			\
90     }
91 
92 #define TC_FRAG_INIT(X)				\
93   do						\
94      {						\
95        frag_opcode_frag (X) = NULL;		\
96        frag_opcode_offset (X) = 0;		\
97        frag_bsr (X) = 0;			\
98      }						\
99   while (0)
100 
101 /* Accessor macros for things which may move around.  */
102 #define frag_opcode_frag(X)   (X)->tc_frag_data.fr_opcode_fragP
103 #define frag_opcode_offset(X) (X)->tc_frag_data.fr_opcode_offset
104 #define frag_bsr(X)           (X)->tc_frag_data.fr_bsr
105 
106 #define TC_FIX_TYPE				\
107   struct					\
108     {						\
109       fragS *      opcode_fragP;		\
110       unsigned int opcode_offset;		\
111       unsigned int bsr : 1;			\
112     }
113 
114 /* Accessor macros for things which may move around.
115    See comments in write.h.  */
116 #define fix_im_disp(X)       (X)->fx_im_disp
117 #define fix_bit_fixP(X)      (X)->fx_bit_fixP
118 #define fix_opcode_frag(X)   (X)->tc_fix_data.opcode_fragP
119 #define fix_opcode_offset(X) (X)->tc_fix_data.opcode_offset
120 #define fix_bsr(X)           (X)->tc_fix_data.bsr
121 
122 #define TC_INIT_FIX_DATA(X)			\
123   do						\
124      {						\
125        fix_opcode_frag(X) = NULL;		\
126        fix_opcode_offset(X) = 0;		\
127        fix_bsr(X) = 0;				\
128      }						\
129   while (0)
130 
131 #define TC_FIX_DATA_PRINT(FILE, FIX)					\
132   do									\
133     {									\
134       fprintf ((FILE), "opcode_frag=%ld, operand offset=%d, bsr=%d\n",	\
135 	      (unsigned long) fix_opcode_frag (FIX),			\
136 	      fix_opcode_offset (FIX),					\
137 	      fix_bsr (FIX));						\
138     }									\
139   while (0)
140