1/* Declarations for SH64 opcodes.
2   Copyright (C) 2000, 2001, 2002 Free Software Foundation, Inc.
3
4This program is free software; you can redistribute it and/or modify
5it under the terms of the GNU General Public License as published by
6the Free Software Foundation; either version 2 of the License, or
7(at your option) any later version.
8
9This program is distributed in the hope that it will be useful,
10but WITHOUT ANY WARRANTY; without even the implied warranty of
11MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
12GNU General Public License for more details.
13
14You should have received a copy of the GNU General Public License
15along with this program; if not, write to the Free Software
16Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, MA 02110-1301, USA.  */
17
18#ifndef _SH64_OPC_INCLUDED_H
19#define _SH64_OPC_INCLUDED_H
20
21typedef enum
22{
23  /* A placeholder.  */
24  OFFSET_NONE = 0,
25
26  /* Bit number for where to insert operand.  */
27  OFFSET_4  = 4,
28  OFFSET_9  = 9,
29  OFFSET_10 = 10,
30  OFFSET_20 = 20
31} shmedia_nibble_type;
32
33typedef enum {
34  /* First a placeholder.  */
35  A_NONE = 0,
36
37  /* Registers.  */
38  A_GREG_M,
39  A_GREG_N,
40  A_GREG_D,
41  A_FREG_G,
42  A_FREG_H,
43  A_FREG_F,
44  A_DREG_G,
45  A_DREG_H,
46  A_DREG_F,
47  A_FVREG_G,
48  A_FVREG_H,
49  A_FVREG_F,
50  A_FMREG_G,
51  A_FMREG_H,
52  A_FMREG_F,
53  A_FPREG_G,
54  A_FPREG_H,
55  A_FPREG_F,
56  A_TREG_A,
57  A_TREG_B,
58  A_CREG_K,
59  A_CREG_J,
60
61  /* This one is only used in a shmedia_get_operand.  */
62  A_IMMM,
63
64  /* Copy of previous register.  */
65  A_REUSE_PREV,
66
67  /* Unsigned 5-bit operand.  */
68  A_IMMU5,
69
70  /* Signed 6-bit operand.  */
71  A_IMMS6,
72
73  /* Signed operand, 6 bits << 5.  */
74  A_IMMS6BY32,
75
76  /* Unsigned 6-bit operand.  */
77  A_IMMU6,
78
79  /* Signed 10-bit operand.  */
80  A_IMMS10,
81
82  /* Signed operand, 10 bits << 0.  */
83  A_IMMS10BY1,
84
85  /* Signed operand, 10 bits << 1.  */
86  A_IMMS10BY2,
87
88  /* Signed operand, 10 bits << 2.  */
89  A_IMMS10BY4,
90
91  /* Signed operand, 10 bits << 3.  */
92  A_IMMS10BY8,
93
94  /* Signed 16-bit operand.  */
95  A_IMMS16,
96
97  /* Unsigned 16-bit operand.  */
98  A_IMMU16,
99
100  /* PC-relative signed operand, 16 bits << 2, for PTA and PTB insns.  */
101  A_PCIMMS16BY4,
102
103  /* PC relative signed operand, 16 bits << 2, for PT insns.  Also adjusts
104     the opcode to be PTA or PTB.  */
105  A_PCIMMS16BY4_PT,
106} shmedia_arg_type;
107
108typedef struct {
109  char *name;
110  shmedia_arg_type arg[4];
111  shmedia_nibble_type nibbles[4];
112  unsigned long opcode_base;
113} shmedia_opcode_info;
114
115extern const shmedia_opcode_info shmedia_table[];
116
117typedef struct {
118  int cregno;
119  char *name;
120} shmedia_creg_info;
121
122extern const shmedia_creg_info shmedia_creg_table[];
123
124#define SHMEDIA_LIKELY_BIT    0x00000200
125#define SHMEDIA_PT_OPC 	      0xe8000000
126#define SHMEDIA_PTB_BIT	      0x04000000
127#define SHMEDIA_PTA_OPC       0xe8000000
128#define SHMEDIA_PTB_OPC       0xec000000
129
130/* Note that this is ptrel/u.  "Or" in SHMEDIA_LIKELY_BIT for ptrel/l.  */
131#define SHMEDIA_PTREL_OPC     0x6bf50000
132#define SHMEDIA_MOVI_OPC      0xcc000000
133#define SHMEDIA_SHORI_OPC     0xc8000000
134#define SHMEDIA_ADDI_OPC      0xd0000000
135#define SHMEDIA_ADD_OPC       0x00090000
136#define SHMEDIA_NOP_OPC	      0x6ff0fff0
137#define SHMEDIA_TEMP_REG      25
138
139#endif /* _SH64_OPC_INCLUDED_H */
140