1 /*
2 * Disassemble SuperH instructions.
3 *
4 * Copyright (C) 1999 kaz Kojima
5 * Copyright (C) 2008 Paul Mundt
6 *
7 * This file is subject to the terms and conditions of the GNU General Public
8 * License. See the file "COPYING" in the main directory of this archive
9 * for more details.
10 */
11 #include <linux/kernel.h>
12 #include <linux/string.h>
13 #include <linux/uaccess.h>
14
15 /*
16 * Format of an instruction in memory.
17 */
18 typedef enum {
19 HEX_0, HEX_1, HEX_2, HEX_3, HEX_4, HEX_5, HEX_6, HEX_7,
20 HEX_8, HEX_9, HEX_A, HEX_B, HEX_C, HEX_D, HEX_E, HEX_F,
21 REG_N, REG_M, REG_NM, REG_B,
22 BRANCH_12, BRANCH_8,
23 DISP_8, DISP_4,
24 IMM_4, IMM_4BY2, IMM_4BY4, PCRELIMM_8BY2, PCRELIMM_8BY4,
25 IMM_8, IMM_8BY2, IMM_8BY4,
26 } sh_nibble_type;
27
28 typedef enum {
29 A_END, A_BDISP12, A_BDISP8,
30 A_DEC_M, A_DEC_N,
31 A_DISP_GBR, A_DISP_PC, A_DISP_REG_M, A_DISP_REG_N,
32 A_GBR,
33 A_IMM,
34 A_INC_M, A_INC_N,
35 A_IND_M, A_IND_N, A_IND_R0_REG_M, A_IND_R0_REG_N,
36 A_MACH, A_MACL,
37 A_PR, A_R0, A_R0_GBR, A_REG_M, A_REG_N, A_REG_B,
38 A_SR, A_VBR, A_SSR, A_SPC, A_SGR, A_DBR,
39 F_REG_N, F_REG_M, D_REG_N, D_REG_M,
40 X_REG_N, /* Only used for argument parsing */
41 X_REG_M, /* Only used for argument parsing */
42 DX_REG_N, DX_REG_M, V_REG_N, V_REG_M,
43 FD_REG_N,
44 XMTRX_M4,
45 F_FR0,
46 FPUL_N, FPUL_M, FPSCR_N, FPSCR_M,
47 } sh_arg_type;
48
49 static struct sh_opcode_info {
50 char *name;
51 sh_arg_type arg[7];
52 sh_nibble_type nibbles[4];
53 } sh_table[] = {
54 {"add",{A_IMM,A_REG_N},{HEX_7,REG_N,IMM_8}},
55 {"add",{ A_REG_M,A_REG_N},{HEX_3,REG_N,REG_M,HEX_C}},
56 {"addc",{ A_REG_M,A_REG_N},{HEX_3,REG_N,REG_M,HEX_E}},
57 {"addv",{ A_REG_M,A_REG_N},{HEX_3,REG_N,REG_M,HEX_F}},
58 {"and",{A_IMM,A_R0},{HEX_C,HEX_9,IMM_8}},
59 {"and",{ A_REG_M,A_REG_N},{HEX_2,REG_N,REG_M,HEX_9}},
60 {"and.b",{A_IMM,A_R0_GBR},{HEX_C,HEX_D,IMM_8}},
61 {"bra",{A_BDISP12},{HEX_A,BRANCH_12}},
62 {"bsr",{A_BDISP12},{HEX_B,BRANCH_12}},
63 {"bt",{A_BDISP8},{HEX_8,HEX_9,BRANCH_8}},
64 {"bf",{A_BDISP8},{HEX_8,HEX_B,BRANCH_8}},
65 {"bt.s",{A_BDISP8},{HEX_8,HEX_D,BRANCH_8}},
66 {"bt/s",{A_BDISP8},{HEX_8,HEX_D,BRANCH_8}},
67 {"bf.s",{A_BDISP8},{HEX_8,HEX_F,BRANCH_8}},
68 {"bf/s",{A_BDISP8},{HEX_8,HEX_F,BRANCH_8}},
69 {"clrmac",{0},{HEX_0,HEX_0,HEX_2,HEX_8}},
70 {"clrs",{0},{HEX_0,HEX_0,HEX_4,HEX_8}},
71 {"clrt",{0},{HEX_0,HEX_0,HEX_0,HEX_8}},
72 {"cmp/eq",{A_IMM,A_R0},{HEX_8,HEX_8,IMM_8}},
73 {"cmp/eq",{ A_REG_M,A_REG_N},{HEX_3,REG_N,REG_M,HEX_0}},
74 {"cmp/ge",{ A_REG_M,A_REG_N},{HEX_3,REG_N,REG_M,HEX_3}},
75 {"cmp/gt",{ A_REG_M,A_REG_N},{HEX_3,REG_N,REG_M,HEX_7}},
76 {"cmp/hi",{ A_REG_M,A_REG_N},{HEX_3,REG_N,REG_M,HEX_6}},
77 {"cmp/hs",{ A_REG_M,A_REG_N},{HEX_3,REG_N,REG_M,HEX_2}},
78 {"cmp/pl",{A_REG_N},{HEX_4,REG_N,HEX_1,HEX_5}},
79 {"cmp/pz",{A_REG_N},{HEX_4,REG_N,HEX_1,HEX_1}},
80 {"cmp/str",{ A_REG_M,A_REG_N},{HEX_2,REG_N,REG_M,HEX_C}},
81 {"div0s",{ A_REG_M,A_REG_N},{HEX_2,REG_N,REG_M,HEX_7}},
82 {"div0u",{0},{HEX_0,HEX_0,HEX_1,HEX_9}},
83 {"div1",{ A_REG_M,A_REG_N},{HEX_3,REG_N,REG_M,HEX_4}},
84 {"exts.b",{ A_REG_M,A_REG_N},{HEX_6,REG_N,REG_M,HEX_E}},
85 {"exts.w",{ A_REG_M,A_REG_N},{HEX_6,REG_N,REG_M,HEX_F}},
86 {"extu.b",{ A_REG_M,A_REG_N},{HEX_6,REG_N,REG_M,HEX_C}},
87 {"extu.w",{ A_REG_M,A_REG_N},{HEX_6,REG_N,REG_M,HEX_D}},
88 {"jmp",{A_IND_N},{HEX_4,REG_N,HEX_2,HEX_B}},
89 {"jsr",{A_IND_N},{HEX_4,REG_N,HEX_0,HEX_B}},
90 {"ldc",{A_REG_N,A_SR},{HEX_4,REG_N,HEX_0,HEX_E}},
91 {"ldc",{A_REG_N,A_GBR},{HEX_4,REG_N,HEX_1,HEX_E}},
92 {"ldc",{A_REG_N,A_VBR},{HEX_4,REG_N,HEX_2,HEX_E}},
93 {"ldc",{A_REG_N,A_SSR},{HEX_4,REG_N,HEX_3,HEX_E}},
94 {"ldc",{A_REG_N,A_SPC},{HEX_4,REG_N,HEX_4,HEX_E}},
95 {"ldc",{A_REG_N,A_DBR},{HEX_4,REG_N,HEX_7,HEX_E}},
96 {"ldc",{A_REG_N,A_REG_B},{HEX_4,REG_N,REG_B,HEX_E}},
97 {"ldc.l",{A_INC_N,A_SR},{HEX_4,REG_N,HEX_0,HEX_7}},
98 {"ldc.l",{A_INC_N,A_GBR},{HEX_4,REG_N,HEX_1,HEX_7}},
99 {"ldc.l",{A_INC_N,A_VBR},{HEX_4,REG_N,HEX_2,HEX_7}},
100 {"ldc.l",{A_INC_N,A_SSR},{HEX_4,REG_N,HEX_3,HEX_7}},
101 {"ldc.l",{A_INC_N,A_SPC},{HEX_4,REG_N,HEX_4,HEX_7}},
102 {"ldc.l",{A_INC_N,A_DBR},{HEX_4,REG_N,HEX_7,HEX_7}},
103 {"ldc.l",{A_INC_N,A_REG_B},{HEX_4,REG_N,REG_B,HEX_7}},
104 {"lds",{A_REG_N,A_MACH},{HEX_4,REG_N,HEX_0,HEX_A}},
105 {"lds",{A_REG_N,A_MACL},{HEX_4,REG_N,HEX_1,HEX_A}},
106 {"lds",{A_REG_N,A_PR},{HEX_4,REG_N,HEX_2,HEX_A}},
107 {"lds",{A_REG_M,FPUL_N},{HEX_4,REG_M,HEX_5,HEX_A}},
108 {"lds",{A_REG_M,FPSCR_N},{HEX_4,REG_M,HEX_6,HEX_A}},
109 {"lds.l",{A_INC_N,A_MACH},{HEX_4,REG_N,HEX_0,HEX_6}},
110 {"lds.l",{A_INC_N,A_MACL},{HEX_4,REG_N,HEX_1,HEX_6}},
111 {"lds.l",{A_INC_N,A_PR},{HEX_4,REG_N,HEX_2,HEX_6}},
112 {"lds.l",{A_INC_M,FPUL_N},{HEX_4,REG_M,HEX_5,HEX_6}},
113 {"lds.l",{A_INC_M,FPSCR_N},{HEX_4,REG_M,HEX_6,HEX_6}},
114 {"ldtlb",{0},{HEX_0,HEX_0,HEX_3,HEX_8}},
115 {"mac.w",{A_INC_M,A_INC_N},{HEX_4,REG_N,REG_M,HEX_F}},
116 {"mov",{A_IMM,A_REG_N},{HEX_E,REG_N,IMM_8}},
117 {"mov",{ A_REG_M,A_REG_N},{HEX_6,REG_N,REG_M,HEX_3}},
118 {"mov.b",{ A_REG_M,A_IND_R0_REG_N},{HEX_0,REG_N,REG_M,HEX_4}},
119 {"mov.b",{ A_REG_M,A_DEC_N},{HEX_2,REG_N,REG_M,HEX_4}},
120 {"mov.b",{ A_REG_M,A_IND_N},{HEX_2,REG_N,REG_M,HEX_0}},
121 {"mov.b",{A_DISP_REG_M,A_R0},{HEX_8,HEX_4,REG_M,IMM_4}},
122 {"mov.b",{A_DISP_GBR,A_R0},{HEX_C,HEX_4,IMM_8}},
123 {"mov.b",{A_IND_R0_REG_M,A_REG_N},{HEX_0,REG_N,REG_M,HEX_C}},
124 {"mov.b",{A_INC_M,A_REG_N},{HEX_6,REG_N,REG_M,HEX_4}},
125 {"mov.b",{A_IND_M,A_REG_N},{HEX_6,REG_N,REG_M,HEX_0}},
126 {"mov.b",{A_R0,A_DISP_REG_M},{HEX_8,HEX_0,REG_M,IMM_4}},
127 {"mov.b",{A_R0,A_DISP_GBR},{HEX_C,HEX_0,IMM_8}},
128 {"mov.l",{ A_REG_M,A_DISP_REG_N},{HEX_1,REG_N,REG_M,IMM_4BY4}},
129 {"mov.l",{ A_REG_M,A_IND_R0_REG_N},{HEX_0,REG_N,REG_M,HEX_6}},
130 {"mov.l",{ A_REG_M,A_DEC_N},{HEX_2,REG_N,REG_M,HEX_6}},
131 {"mov.l",{ A_REG_M,A_IND_N},{HEX_2,REG_N,REG_M,HEX_2}},
132 {"mov.l",{A_DISP_REG_M,A_REG_N},{HEX_5,REG_N,REG_M,IMM_4BY4}},
133 {"mov.l",{A_DISP_GBR,A_R0},{HEX_C,HEX_6,IMM_8BY4}},
134 {"mov.l",{A_DISP_PC,A_REG_N},{HEX_D,REG_N,PCRELIMM_8BY4}},
135 {"mov.l",{A_IND_R0_REG_M,A_REG_N},{HEX_0,REG_N,REG_M,HEX_E}},
136 {"mov.l",{A_INC_M,A_REG_N},{HEX_6,REG_N,REG_M,HEX_6}},
137 {"mov.l",{A_IND_M,A_REG_N},{HEX_6,REG_N,REG_M,HEX_2}},
138 {"mov.l",{A_R0,A_DISP_GBR},{HEX_C,HEX_2,IMM_8BY4}},
139 {"mov.w",{ A_REG_M,A_IND_R0_REG_N},{HEX_0,REG_N,REG_M,HEX_5}},
140 {"mov.w",{ A_REG_M,A_DEC_N},{HEX_2,REG_N,REG_M,HEX_5}},
141 {"mov.w",{ A_REG_M,A_IND_N},{HEX_2,REG_N,REG_M,HEX_1}},
142 {"mov.w",{A_DISP_REG_M,A_R0},{HEX_8,HEX_5,REG_M,IMM_4BY2}},
143 {"mov.w",{A_DISP_GBR,A_R0},{HEX_C,HEX_5,IMM_8BY2}},
144 {"mov.w",{A_DISP_PC,A_REG_N},{HEX_9,REG_N,PCRELIMM_8BY2}},
145 {"mov.w",{A_IND_R0_REG_M,A_REG_N},{HEX_0,REG_N,REG_M,HEX_D}},
146 {"mov.w",{A_INC_M,A_REG_N},{HEX_6,REG_N,REG_M,HEX_5}},
147 {"mov.w",{A_IND_M,A_REG_N},{HEX_6,REG_N,REG_M,HEX_1}},
148 {"mov.w",{A_R0,A_DISP_REG_M},{HEX_8,HEX_1,REG_M,IMM_4BY2}},
149 {"mov.w",{A_R0,A_DISP_GBR},{HEX_C,HEX_1,IMM_8BY2}},
150 {"mova",{A_DISP_PC,A_R0},{HEX_C,HEX_7,PCRELIMM_8BY4}},
151 {"movca.l",{A_R0,A_IND_N},{HEX_0,REG_N,HEX_C,HEX_3}},
152 {"movt",{A_REG_N},{HEX_0,REG_N,HEX_2,HEX_9}},
153 {"muls",{ A_REG_M,A_REG_N},{HEX_2,REG_N,REG_M,HEX_F}},
154 {"mul.l",{ A_REG_M,A_REG_N},{HEX_0,REG_N,REG_M,HEX_7}},
155 {"mulu",{ A_REG_M,A_REG_N},{HEX_2,REG_N,REG_M,HEX_E}},
156 {"neg",{ A_REG_M,A_REG_N},{HEX_6,REG_N,REG_M,HEX_B}},
157 {"negc",{ A_REG_M,A_REG_N},{HEX_6,REG_N,REG_M,HEX_A}},
158 {"nop",{0},{HEX_0,HEX_0,HEX_0,HEX_9}},
159 {"not",{ A_REG_M,A_REG_N},{HEX_6,REG_N,REG_M,HEX_7}},
160 {"ocbi",{A_IND_N},{HEX_0,REG_N,HEX_9,HEX_3}},
161 {"ocbp",{A_IND_N},{HEX_0,REG_N,HEX_A,HEX_3}},
162 {"ocbwb",{A_IND_N},{HEX_0,REG_N,HEX_B,HEX_3}},
163 {"or",{A_IMM,A_R0},{HEX_C,HEX_B,IMM_8}},
164 {"or",{ A_REG_M,A_REG_N},{HEX_2,REG_N,REG_M,HEX_B}},
165 {"or.b",{A_IMM,A_R0_GBR},{HEX_C,HEX_F,IMM_8}},
166 {"pref",{A_IND_N},{HEX_0,REG_N,HEX_8,HEX_3}},
167 {"rotcl",{A_REG_N},{HEX_4,REG_N,HEX_2,HEX_4}},
168 {"rotcr",{A_REG_N},{HEX_4,REG_N,HEX_2,HEX_5}},
169 {"rotl",{A_REG_N},{HEX_4,REG_N,HEX_0,HEX_4}},
170 {"rotr",{A_REG_N},{HEX_4,REG_N,HEX_0,HEX_5}},
171 {"rte",{0},{HEX_0,HEX_0,HEX_2,HEX_B}},
172 {"rts",{0},{HEX_0,HEX_0,HEX_0,HEX_B}},
173 {"sets",{0},{HEX_0,HEX_0,HEX_5,HEX_8}},
174 {"sett",{0},{HEX_0,HEX_0,HEX_1,HEX_8}},
175 {"shad",{ A_REG_M,A_REG_N},{HEX_4,REG_N,REG_M,HEX_C}},
176 {"shld",{ A_REG_M,A_REG_N},{HEX_4,REG_N,REG_M,HEX_D}},
177 {"shal",{A_REG_N},{HEX_4,REG_N,HEX_2,HEX_0}},
178 {"shar",{A_REG_N},{HEX_4,REG_N,HEX_2,HEX_1}},
179 {"shll",{A_REG_N},{HEX_4,REG_N,HEX_0,HEX_0}},
180 {"shll16",{A_REG_N},{HEX_4,REG_N,HEX_2,HEX_8}},
181 {"shll2",{A_REG_N},{HEX_4,REG_N,HEX_0,HEX_8}},
182 {"shll8",{A_REG_N},{HEX_4,REG_N,HEX_1,HEX_8}},
183 {"shlr",{A_REG_N},{HEX_4,REG_N,HEX_0,HEX_1}},
184 {"shlr16",{A_REG_N},{HEX_4,REG_N,HEX_2,HEX_9}},
185 {"shlr2",{A_REG_N},{HEX_4,REG_N,HEX_0,HEX_9}},
186 {"shlr8",{A_REG_N},{HEX_4,REG_N,HEX_1,HEX_9}},
187 {"sleep",{0},{HEX_0,HEX_0,HEX_1,HEX_B}},
188 {"stc",{A_SR,A_REG_N},{HEX_0,REG_N,HEX_0,HEX_2}},
189 {"stc",{A_GBR,A_REG_N},{HEX_0,REG_N,HEX_1,HEX_2}},
190 {"stc",{A_VBR,A_REG_N},{HEX_0,REG_N,HEX_2,HEX_2}},
191 {"stc",{A_SSR,A_REG_N},{HEX_0,REG_N,HEX_3,HEX_2}},
192 {"stc",{A_SPC,A_REG_N},{HEX_0,REG_N,HEX_4,HEX_2}},
193 {"stc",{A_SGR,A_REG_N},{HEX_0,REG_N,HEX_6,HEX_2}},
194 {"stc",{A_DBR,A_REG_N},{HEX_0,REG_N,HEX_7,HEX_2}},
195 {"stc",{A_REG_B,A_REG_N},{HEX_0,REG_N,REG_B,HEX_2}},
196 {"stc.l",{A_SR,A_DEC_N},{HEX_4,REG_N,HEX_0,HEX_3}},
197 {"stc.l",{A_GBR,A_DEC_N},{HEX_4,REG_N,HEX_1,HEX_3}},
198 {"stc.l",{A_VBR,A_DEC_N},{HEX_4,REG_N,HEX_2,HEX_3}},
199 {"stc.l",{A_SSR,A_DEC_N},{HEX_4,REG_N,HEX_3,HEX_3}},
200 {"stc.l",{A_SPC,A_DEC_N},{HEX_4,REG_N,HEX_4,HEX_3}},
201 {"stc.l",{A_SGR,A_DEC_N},{HEX_4,REG_N,HEX_6,HEX_3}},
202 {"stc.l",{A_DBR,A_DEC_N},{HEX_4,REG_N,HEX_7,HEX_3}},
203 {"stc.l",{A_REG_B,A_DEC_N},{HEX_4,REG_N,REG_B,HEX_3}},
204 {"sts",{A_MACH,A_REG_N},{HEX_0,REG_N,HEX_0,HEX_A}},
205 {"sts",{A_MACL,A_REG_N},{HEX_0,REG_N,HEX_1,HEX_A}},
206 {"sts",{A_PR,A_REG_N},{HEX_0,REG_N,HEX_2,HEX_A}},
207 {"sts",{FPUL_M,A_REG_N},{HEX_0,REG_N,HEX_5,HEX_A}},
208 {"sts",{FPSCR_M,A_REG_N},{HEX_0,REG_N,HEX_6,HEX_A}},
209 {"sts.l",{A_MACH,A_DEC_N},{HEX_4,REG_N,HEX_0,HEX_2}},
210 {"sts.l",{A_MACL,A_DEC_N},{HEX_4,REG_N,HEX_1,HEX_2}},
211 {"sts.l",{A_PR,A_DEC_N},{HEX_4,REG_N,HEX_2,HEX_2}},
212 {"sts.l",{FPUL_M,A_DEC_N},{HEX_4,REG_N,HEX_5,HEX_2}},
213 {"sts.l",{FPSCR_M,A_DEC_N},{HEX_4,REG_N,HEX_6,HEX_2}},
214 {"sub",{ A_REG_M,A_REG_N},{HEX_3,REG_N,REG_M,HEX_8}},
215 {"subc",{ A_REG_M,A_REG_N},{HEX_3,REG_N,REG_M,HEX_A}},
216 {"subv",{ A_REG_M,A_REG_N},{HEX_3,REG_N,REG_M,HEX_B}},
217 {"swap.b",{ A_REG_M,A_REG_N},{HEX_6,REG_N,REG_M,HEX_8}},
218 {"swap.w",{ A_REG_M,A_REG_N},{HEX_6,REG_N,REG_M,HEX_9}},
219 {"tas.b",{A_IND_N},{HEX_4,REG_N,HEX_1,HEX_B}},
220 {"trapa",{A_IMM},{HEX_C,HEX_3,IMM_8}},
221 {"tst",{A_IMM,A_R0},{HEX_C,HEX_8,IMM_8}},
222 {"tst",{ A_REG_M,A_REG_N},{HEX_2,REG_N,REG_M,HEX_8}},
223 {"tst.b",{A_IMM,A_R0_GBR},{HEX_C,HEX_C,IMM_8}},
224 {"xor",{A_IMM,A_R0},{HEX_C,HEX_A,IMM_8}},
225 {"xor",{ A_REG_M,A_REG_N},{HEX_2,REG_N,REG_M,HEX_A}},
226 {"xor.b",{A_IMM,A_R0_GBR},{HEX_C,HEX_E,IMM_8}},
227 {"xtrct",{ A_REG_M,A_REG_N},{HEX_2,REG_N,REG_M,HEX_D}},
228 {"mul.l",{ A_REG_M,A_REG_N},{HEX_0,REG_N,REG_M,HEX_7}},
229 {"dt",{A_REG_N},{HEX_4,REG_N,HEX_1,HEX_0}},
230 {"dmuls.l",{ A_REG_M,A_REG_N},{HEX_3,REG_N,REG_M,HEX_D}},
231 {"dmulu.l",{ A_REG_M,A_REG_N},{HEX_3,REG_N,REG_M,HEX_5}},
232 {"mac.l",{A_INC_M,A_INC_N},{HEX_0,REG_N,REG_M,HEX_F}},
233 {"braf",{A_REG_N},{HEX_0,REG_N,HEX_2,HEX_3}},
234 {"bsrf",{A_REG_N},{HEX_0,REG_N,HEX_0,HEX_3}},
235 {"fabs",{FD_REG_N},{HEX_F,REG_N,HEX_5,HEX_D}},
236 {"fadd",{F_REG_M,F_REG_N},{HEX_F,REG_N,REG_M,HEX_0}},
237 {"fadd",{D_REG_M,D_REG_N},{HEX_F,REG_N,REG_M,HEX_0}},
238 {"fcmp/eq",{F_REG_M,F_REG_N},{HEX_F,REG_N,REG_M,HEX_4}},
239 {"fcmp/eq",{D_REG_M,D_REG_N},{HEX_F,REG_N,REG_M,HEX_4}},
240 {"fcmp/gt",{F_REG_M,F_REG_N},{HEX_F,REG_N,REG_M,HEX_5}},
241 {"fcmp/gt",{D_REG_M,D_REG_N},{HEX_F,REG_N,REG_M,HEX_5}},
242 {"fcnvds",{D_REG_N,FPUL_M},{HEX_F,REG_N,HEX_B,HEX_D}},
243 {"fcnvsd",{FPUL_M,D_REG_N},{HEX_F,REG_N,HEX_A,HEX_D}},
244 {"fdiv",{F_REG_M,F_REG_N},{HEX_F,REG_N,REG_M,HEX_3}},
245 {"fdiv",{D_REG_M,D_REG_N},{HEX_F,REG_N,REG_M,HEX_3}},
246 {"fipr",{V_REG_M,V_REG_N},{HEX_F,REG_NM,HEX_E,HEX_D}},
247 {"fldi0",{F_REG_N},{HEX_F,REG_N,HEX_8,HEX_D}},
248 {"fldi1",{F_REG_N},{HEX_F,REG_N,HEX_9,HEX_D}},
249 {"flds",{F_REG_N,FPUL_M},{HEX_F,REG_N,HEX_1,HEX_D}},
250 {"float",{FPUL_M,FD_REG_N},{HEX_F,REG_N,HEX_2,HEX_D}},
251 {"fmac",{F_FR0,F_REG_M,F_REG_N},{HEX_F,REG_N,REG_M,HEX_E}},
252 {"fmov",{F_REG_M,F_REG_N},{HEX_F,REG_N,REG_M,HEX_C}},
253 {"fmov",{DX_REG_M,DX_REG_N},{HEX_F,REG_N,REG_M,HEX_C}},
254 {"fmov",{A_IND_M,F_REG_N},{HEX_F,REG_N,REG_M,HEX_8}},
255 {"fmov",{A_IND_M,DX_REG_N},{HEX_F,REG_N,REG_M,HEX_8}},
256 {"fmov",{F_REG_M,A_IND_N},{HEX_F,REG_N,REG_M,HEX_A}},
257 {"fmov",{DX_REG_M,A_IND_N},{HEX_F,REG_N,REG_M,HEX_A}},
258 {"fmov",{A_INC_M,F_REG_N},{HEX_F,REG_N,REG_M,HEX_9}},
259 {"fmov",{A_INC_M,DX_REG_N},{HEX_F,REG_N,REG_M,HEX_9}},
260 {"fmov",{F_REG_M,A_DEC_N},{HEX_F,REG_N,REG_M,HEX_B}},
261 {"fmov",{DX_REG_M,A_DEC_N},{HEX_F,REG_N,REG_M,HEX_B}},
262 {"fmov",{A_IND_R0_REG_M,F_REG_N},{HEX_F,REG_N,REG_M,HEX_6}},
263 {"fmov",{A_IND_R0_REG_M,DX_REG_N},{HEX_F,REG_N,REG_M,HEX_6}},
264 {"fmov",{F_REG_M,A_IND_R0_REG_N},{HEX_F,REG_N,REG_M,HEX_7}},
265 {"fmov",{DX_REG_M,A_IND_R0_REG_N},{HEX_F,REG_N,REG_M,HEX_7}},
266 {"fmov.d",{A_IND_M,DX_REG_N},{HEX_F,REG_N,REG_M,HEX_8}},
267 {"fmov.d",{DX_REG_M,A_IND_N},{HEX_F,REG_N,REG_M,HEX_A}},
268 {"fmov.d",{A_INC_M,DX_REG_N},{HEX_F,REG_N,REG_M,HEX_9}},
269 {"fmov.d",{DX_REG_M,A_DEC_N},{HEX_F,REG_N,REG_M,HEX_B}},
270 {"fmov.d",{A_IND_R0_REG_M,DX_REG_N},{HEX_F,REG_N,REG_M,HEX_6}},
271 {"fmov.d",{DX_REG_M,A_IND_R0_REG_N},{HEX_F,REG_N,REG_M,HEX_7}},
272 {"fmov.s",{A_IND_M,F_REG_N},{HEX_F,REG_N,REG_M,HEX_8}},
273 {"fmov.s",{F_REG_M,A_IND_N},{HEX_F,REG_N,REG_M,HEX_A}},
274 {"fmov.s",{A_INC_M,F_REG_N},{HEX_F,REG_N,REG_M,HEX_9}},
275 {"fmov.s",{F_REG_M,A_DEC_N},{HEX_F,REG_N,REG_M,HEX_B}},
276 {"fmov.s",{A_IND_R0_REG_M,F_REG_N},{HEX_F,REG_N,REG_M,HEX_6}},
277 {"fmov.s",{F_REG_M,A_IND_R0_REG_N},{HEX_F,REG_N,REG_M,HEX_7}},
278 {"fmul",{F_REG_M,F_REG_N},{HEX_F,REG_N,REG_M,HEX_2}},
279 {"fmul",{D_REG_M,D_REG_N},{HEX_F,REG_N,REG_M,HEX_2}},
280 {"fneg",{FD_REG_N},{HEX_F,REG_N,HEX_4,HEX_D}},
281 {"frchg",{0},{HEX_F,HEX_B,HEX_F,HEX_D}},
282 {"fschg",{0},{HEX_F,HEX_3,HEX_F,HEX_D}},
283 {"fsqrt",{FD_REG_N},{HEX_F,REG_N,HEX_6,HEX_D}},
284 {"fsts",{FPUL_M,F_REG_N},{HEX_F,REG_N,HEX_0,HEX_D}},
285 {"fsub",{F_REG_M,F_REG_N},{HEX_F,REG_N,REG_M,HEX_1}},
286 {"fsub",{D_REG_M,D_REG_N},{HEX_F,REG_N,REG_M,HEX_1}},
287 {"ftrc",{FD_REG_N,FPUL_M},{HEX_F,REG_N,HEX_3,HEX_D}},
288 {"ftrv",{XMTRX_M4,V_REG_N},{HEX_F,REG_NM,HEX_F,HEX_D}},
289 { 0 },
290 };
291
print_sh_insn(u32 memaddr,u16 insn)292 static void print_sh_insn(u32 memaddr, u16 insn)
293 {
294 int relmask = ~0;
295 int nibs[4] = { (insn >> 12) & 0xf, (insn >> 8) & 0xf, (insn >> 4) & 0xf, insn & 0xf};
296 int lastsp;
297 struct sh_opcode_info *op = sh_table;
298
299 for (; op->name; op++) {
300 int n;
301 int imm = 0;
302 int rn = 0;
303 int rm = 0;
304 int rb = 0;
305 int disp_pc;
306 int disp_pc_addr = 0;
307
308 for (n = 0; n < 4; n++) {
309 int i = op->nibbles[n];
310
311 if (i < 16) {
312 if (nibs[n] == i)
313 continue;
314 goto fail;
315 }
316 switch (i) {
317 case BRANCH_8:
318 imm = (nibs[2] << 4) | (nibs[3]);
319 if (imm & 0x80)
320 imm |= ~0xff;
321 imm = ((char)imm) * 2 + 4 ;
322 goto ok;
323 case BRANCH_12:
324 imm = ((nibs[1]) << 8) | (nibs[2] << 4) | (nibs[3]);
325 if (imm & 0x800)
326 imm |= ~0xfff;
327 imm = imm * 2 + 4;
328 goto ok;
329 case IMM_4:
330 imm = nibs[3];
331 goto ok;
332 case IMM_4BY2:
333 imm = nibs[3] <<1;
334 goto ok;
335 case IMM_4BY4:
336 imm = nibs[3] <<2;
337 goto ok;
338 case IMM_8:
339 imm = (nibs[2] << 4) | nibs[3];
340 goto ok;
341 case PCRELIMM_8BY2:
342 imm = ((nibs[2] << 4) | nibs[3]) <<1;
343 relmask = ~1;
344 goto ok;
345 case PCRELIMM_8BY4:
346 imm = ((nibs[2] << 4) | nibs[3]) <<2;
347 relmask = ~3;
348 goto ok;
349 case IMM_8BY2:
350 imm = ((nibs[2] << 4) | nibs[3]) <<1;
351 goto ok;
352 case IMM_8BY4:
353 imm = ((nibs[2] << 4) | nibs[3]) <<2;
354 goto ok;
355 case DISP_8:
356 imm = (nibs[2] << 4) | (nibs[3]);
357 goto ok;
358 case DISP_4:
359 imm = nibs[3];
360 goto ok;
361 case REG_N:
362 rn = nibs[n];
363 break;
364 case REG_M:
365 rm = nibs[n];
366 break;
367 case REG_NM:
368 rn = (nibs[n] & 0xc) >> 2;
369 rm = (nibs[n] & 0x3);
370 break;
371 case REG_B:
372 rb = nibs[n] & 0x07;
373 break;
374 default:
375 return;
376 }
377 }
378
379 ok:
380 printk("%-8s ", op->name);
381 lastsp = (op->arg[0] == A_END);
382 disp_pc = 0;
383 for (n = 0; n < 6 && op->arg[n] != A_END; n++) {
384 if (n && op->arg[1] != A_END)
385 printk(", ");
386 switch (op->arg[n]) {
387 case A_IMM:
388 printk("#%d", (char)(imm));
389 break;
390 case A_R0:
391 printk("r0");
392 break;
393 case A_REG_N:
394 printk("r%d", rn);
395 break;
396 case A_INC_N:
397 printk("@r%d+", rn);
398 break;
399 case A_DEC_N:
400 printk("@-r%d", rn);
401 break;
402 case A_IND_N:
403 printk("@r%d", rn);
404 break;
405 case A_DISP_REG_N:
406 printk("@(%d,r%d)", imm, rn);
407 break;
408 case A_REG_M:
409 printk("r%d", rm);
410 break;
411 case A_INC_M:
412 printk("@r%d+", rm);
413 break;
414 case A_DEC_M:
415 printk("@-r%d", rm);
416 break;
417 case A_IND_M:
418 printk("@r%d", rm);
419 break;
420 case A_DISP_REG_M:
421 printk("@(%d,r%d)", imm, rm);
422 break;
423 case A_REG_B:
424 printk("r%d_bank", rb);
425 break;
426 case A_DISP_PC:
427 disp_pc = 1;
428 disp_pc_addr = imm + 4 + (memaddr & relmask);
429 printk("%08x <%pS>", disp_pc_addr,
430 (void *)disp_pc_addr);
431 break;
432 case A_IND_R0_REG_N:
433 printk("@(r0,r%d)", rn);
434 break;
435 case A_IND_R0_REG_M:
436 printk("@(r0,r%d)", rm);
437 break;
438 case A_DISP_GBR:
439 printk("@(%d,gbr)",imm);
440 break;
441 case A_R0_GBR:
442 printk("@(r0,gbr)");
443 break;
444 case A_BDISP12:
445 case A_BDISP8:
446 printk("%08x", imm + memaddr);
447 break;
448 case A_SR:
449 printk("sr");
450 break;
451 case A_GBR:
452 printk("gbr");
453 break;
454 case A_VBR:
455 printk("vbr");
456 break;
457 case A_SSR:
458 printk("ssr");
459 break;
460 case A_SPC:
461 printk("spc");
462 break;
463 case A_MACH:
464 printk("mach");
465 break;
466 case A_MACL:
467 printk("macl");
468 break;
469 case A_PR:
470 printk("pr");
471 break;
472 case A_SGR:
473 printk("sgr");
474 break;
475 case A_DBR:
476 printk("dbr");
477 break;
478 case FD_REG_N:
479 if (0)
480 goto d_reg_n;
481 case F_REG_N:
482 printk("fr%d", rn);
483 break;
484 case F_REG_M:
485 printk("fr%d", rm);
486 break;
487 case DX_REG_N:
488 if (rn & 1) {
489 printk("xd%d", rn & ~1);
490 break;
491 }
492 d_reg_n:
493 case D_REG_N:
494 printk("dr%d", rn);
495 break;
496 case DX_REG_M:
497 if (rm & 1) {
498 printk("xd%d", rm & ~1);
499 break;
500 }
501 case D_REG_M:
502 printk("dr%d", rm);
503 break;
504 case FPSCR_M:
505 case FPSCR_N:
506 printk("fpscr");
507 break;
508 case FPUL_M:
509 case FPUL_N:
510 printk("fpul");
511 break;
512 case F_FR0:
513 printk("fr0");
514 break;
515 case V_REG_N:
516 printk("fv%d", rn*4);
517 break;
518 case V_REG_M:
519 printk("fv%d", rm*4);
520 break;
521 case XMTRX_M4:
522 printk("xmtrx");
523 break;
524 default:
525 return;
526 }
527 }
528
529 if (disp_pc && strcmp(op->name, "mova") != 0) {
530 u32 val;
531
532 if (relmask == ~1)
533 __get_user(val, (u16 *)disp_pc_addr);
534 else
535 __get_user(val, (u32 *)disp_pc_addr);
536
537 printk(" ! %08x <%pS>", val, (void *)val);
538 }
539
540 return;
541 fail:
542 ;
543
544 }
545
546 printk(".word 0x%x%x%x%x", nibs[0], nibs[1], nibs[2], nibs[3]);
547 }
548
show_code(struct pt_regs * regs)549 void show_code(struct pt_regs *regs)
550 {
551 unsigned short *pc = (unsigned short *)regs->pc;
552 long i;
553
554 if (regs->pc & 0x1)
555 return;
556
557 printk("Code:\n");
558
559 for (i = -3 ; i < 6 ; i++) {
560 unsigned short insn;
561
562 if (__get_user(insn, pc + i)) {
563 printk(" (Bad address in pc)\n");
564 break;
565 }
566
567 printk("%s%08lx: ", (i ? " ": "->"), (unsigned long)(pc + i));
568 print_sh_insn((unsigned long)(pc + i), insn);
569 printk("\n");
570 }
571
572 printk("\n");
573 }
574