1 /* Declarations for SH64 opcodes.
2    Copyright (C) 2000, 2001 Free Software Foundation, Inc.
3 
4 This program is free software; you can redistribute it and/or modify
5 it under the terms of the GNU General Public License as published by
6 the Free Software Foundation; either version 2 of the License, or
7 (at your option) any later version.
8 
9 This program is distributed in the hope that it will be useful,
10 but WITHOUT ANY WARRANTY; without even the implied warranty of
11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
12 GNU General Public License for more details.
13 
14 You should have received a copy of the GNU General Public License
15 along with this program; if not, write to the Free Software
16 Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.  */
17 
18 #ifndef _SH64_OPC_INCLUDED_H
19 #define _SH64_OPC_INCLUDED_H
20 
21 typedef 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 
33 typedef 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 
108 typedef 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 
115 extern const shmedia_opcode_info shmedia_table[];
116 
117 typedef struct {
118   int cregno;
119   char *name;
120 } shmedia_creg_info;
121 
122 extern 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