1 // SPDX-License-Identifier: GPL-2.0 2 /* 3 * Disassemble SuperH instructions. 4 * 5 * Copyright (C) 1999 kaz Kojima 6 * Copyright (C) 2008 Paul Mundt 7 */ 8 #include <linux/kernel.h> 9 #include <linux/string.h> 10 #include <linux/uaccess.h> 11 12 #include <asm/ptrace.h> 13 14 /* 15 * Format of an instruction in memory. 16 */ 17 typedef enum { 18 HEX_0, HEX_1, HEX_2, HEX_3, HEX_4, HEX_5, HEX_6, HEX_7, 19 HEX_8, HEX_9, HEX_A, HEX_B, HEX_C, HEX_D, HEX_E, HEX_F, 20 REG_N, REG_M, REG_NM, REG_B, 21 BRANCH_12, BRANCH_8, 22 DISP_8, DISP_4, 23 IMM_4, IMM_4BY2, IMM_4BY4, PCRELIMM_8BY2, PCRELIMM_8BY4, 24 IMM_8, IMM_8BY2, IMM_8BY4, 25 } sh_nibble_type; 26 27 typedef enum { 28 A_END, A_BDISP12, A_BDISP8, 29 A_DEC_M, A_DEC_N, 30 A_DISP_GBR, A_DISP_PC, A_DISP_REG_M, A_DISP_REG_N, 31 A_GBR, 32 A_IMM, 33 A_INC_M, A_INC_N, 34 A_IND_M, A_IND_N, A_IND_R0_REG_M, A_IND_R0_REG_N, 35 A_MACH, A_MACL, 36 A_PR, A_R0, A_R0_GBR, A_REG_M, A_REG_N, A_REG_B, 37 A_SR, A_VBR, A_SSR, A_SPC, A_SGR, A_DBR, 38 F_REG_N, F_REG_M, D_REG_N, D_REG_M, 39 X_REG_N, /* Only used for argument parsing */ 40 X_REG_M, /* Only used for argument parsing */ 41 DX_REG_N, DX_REG_M, V_REG_N, V_REG_M, 42 FD_REG_N, 43 XMTRX_M4, 44 F_FR0, 45 FPUL_N, FPUL_M, FPSCR_N, FPSCR_M, 46 } sh_arg_type; 47 48 static struct sh_opcode_info { 49 char *name; 50 sh_arg_type arg[7]; 51 sh_nibble_type nibbles[4]; 52 } sh_table[] = { 53 {"add",{A_IMM,A_REG_N},{HEX_7,REG_N,IMM_8}}, 54 {"add",{ A_REG_M,A_REG_N},{HEX_3,REG_N,REG_M,HEX_C}}, 55 {"addc",{ A_REG_M,A_REG_N},{HEX_3,REG_N,REG_M,HEX_E}}, 56 {"addv",{ A_REG_M,A_REG_N},{HEX_3,REG_N,REG_M,HEX_F}}, 57 {"and",{A_IMM,A_R0},{HEX_C,HEX_9,IMM_8}}, 58 {"and",{ A_REG_M,A_REG_N},{HEX_2,REG_N,REG_M,HEX_9}}, 59 {"and.b",{A_IMM,A_R0_GBR},{HEX_C,HEX_D,IMM_8}}, 60 {"bra",{A_BDISP12},{HEX_A,BRANCH_12}}, 61 {"bsr",{A_BDISP12},{HEX_B,BRANCH_12}}, 62 {"bt",{A_BDISP8},{HEX_8,HEX_9,BRANCH_8}}, 63 {"bf",{A_BDISP8},{HEX_8,HEX_B,BRANCH_8}}, 64 {"bt.s",{A_BDISP8},{HEX_8,HEX_D,BRANCH_8}}, 65 {"bt/s",{A_BDISP8},{HEX_8,HEX_D,BRANCH_8}}, 66 {"bf.s",{A_BDISP8},{HEX_8,HEX_F,BRANCH_8}}, 67 {"bf/s",{A_BDISP8},{HEX_8,HEX_F,BRANCH_8}}, 68 {"clrmac",{0},{HEX_0,HEX_0,HEX_2,HEX_8}}, 69 {"clrs",{0},{HEX_0,HEX_0,HEX_4,HEX_8}}, 70 {"clrt",{0},{HEX_0,HEX_0,HEX_0,HEX_8}}, 71 {"cmp/eq",{A_IMM,A_R0},{HEX_8,HEX_8,IMM_8}}, 72 {"cmp/eq",{ A_REG_M,A_REG_N},{HEX_3,REG_N,REG_M,HEX_0}}, 73 {"cmp/ge",{ A_REG_M,A_REG_N},{HEX_3,REG_N,REG_M,HEX_3}}, 74 {"cmp/gt",{ A_REG_M,A_REG_N},{HEX_3,REG_N,REG_M,HEX_7}}, 75 {"cmp/hi",{ A_REG_M,A_REG_N},{HEX_3,REG_N,REG_M,HEX_6}}, 76 {"cmp/hs",{ A_REG_M,A_REG_N},{HEX_3,REG_N,REG_M,HEX_2}}, 77 {"cmp/pl",{A_REG_N},{HEX_4,REG_N,HEX_1,HEX_5}}, 78 {"cmp/pz",{A_REG_N},{HEX_4,REG_N,HEX_1,HEX_1}}, 79 {"cmp/str",{ A_REG_M,A_REG_N},{HEX_2,REG_N,REG_M,HEX_C}}, 80 {"div0s",{ A_REG_M,A_REG_N},{HEX_2,REG_N,REG_M,HEX_7}}, 81 {"div0u",{0},{HEX_0,HEX_0,HEX_1,HEX_9}}, 82 {"div1",{ A_REG_M,A_REG_N},{HEX_3,REG_N,REG_M,HEX_4}}, 83 {"exts.b",{ A_REG_M,A_REG_N},{HEX_6,REG_N,REG_M,HEX_E}}, 84 {"exts.w",{ A_REG_M,A_REG_N},{HEX_6,REG_N,REG_M,HEX_F}}, 85 {"extu.b",{ A_REG_M,A_REG_N},{HEX_6,REG_N,REG_M,HEX_C}}, 86 {"extu.w",{ A_REG_M,A_REG_N},{HEX_6,REG_N,REG_M,HEX_D}}, 87 {"jmp",{A_IND_N},{HEX_4,REG_N,HEX_2,HEX_B}}, 88 {"jsr",{A_IND_N},{HEX_4,REG_N,HEX_0,HEX_B}}, 89 {"ldc",{A_REG_N,A_SR},{HEX_4,REG_N,HEX_0,HEX_E}}, 90 {"ldc",{A_REG_N,A_GBR},{HEX_4,REG_N,HEX_1,HEX_E}}, 91 {"ldc",{A_REG_N,A_VBR},{HEX_4,REG_N,HEX_2,HEX_E}}, 92 {"ldc",{A_REG_N,A_SSR},{HEX_4,REG_N,HEX_3,HEX_E}}, 93 {"ldc",{A_REG_N,A_SPC},{HEX_4,REG_N,HEX_4,HEX_E}}, 94 {"ldc",{A_REG_N,A_DBR},{HEX_4,REG_N,HEX_7,HEX_E}}, 95 {"ldc",{A_REG_N,A_REG_B},{HEX_4,REG_N,REG_B,HEX_E}}, 96 {"ldc.l",{A_INC_N,A_SR},{HEX_4,REG_N,HEX_0,HEX_7}}, 97 {"ldc.l",{A_INC_N,A_GBR},{HEX_4,REG_N,HEX_1,HEX_7}}, 98 {"ldc.l",{A_INC_N,A_VBR},{HEX_4,REG_N,HEX_2,HEX_7}}, 99 {"ldc.l",{A_INC_N,A_SSR},{HEX_4,REG_N,HEX_3,HEX_7}}, 100 {"ldc.l",{A_INC_N,A_SPC},{HEX_4,REG_N,HEX_4,HEX_7}}, 101 {"ldc.l",{A_INC_N,A_DBR},{HEX_4,REG_N,HEX_7,HEX_7}}, 102 {"ldc.l",{A_INC_N,A_REG_B},{HEX_4,REG_N,REG_B,HEX_7}}, 103 {"lds",{A_REG_N,A_MACH},{HEX_4,REG_N,HEX_0,HEX_A}}, 104 {"lds",{A_REG_N,A_MACL},{HEX_4,REG_N,HEX_1,HEX_A}}, 105 {"lds",{A_REG_N,A_PR},{HEX_4,REG_N,HEX_2,HEX_A}}, 106 {"lds",{A_REG_M,FPUL_N},{HEX_4,REG_M,HEX_5,HEX_A}}, 107 {"lds",{A_REG_M,FPSCR_N},{HEX_4,REG_M,HEX_6,HEX_A}}, 108 {"lds.l",{A_INC_N,A_MACH},{HEX_4,REG_N,HEX_0,HEX_6}}, 109 {"lds.l",{A_INC_N,A_MACL},{HEX_4,REG_N,HEX_1,HEX_6}}, 110 {"lds.l",{A_INC_N,A_PR},{HEX_4,REG_N,HEX_2,HEX_6}}, 111 {"lds.l",{A_INC_M,FPUL_N},{HEX_4,REG_M,HEX_5,HEX_6}}, 112 {"lds.l",{A_INC_M,FPSCR_N},{HEX_4,REG_M,HEX_6,HEX_6}}, 113 {"ldtlb",{0},{HEX_0,HEX_0,HEX_3,HEX_8}}, 114 {"mac.w",{A_INC_M,A_INC_N},{HEX_4,REG_N,REG_M,HEX_F}}, 115 {"mov",{A_IMM,A_REG_N},{HEX_E,REG_N,IMM_8}}, 116 {"mov",{ A_REG_M,A_REG_N},{HEX_6,REG_N,REG_M,HEX_3}}, 117 {"mov.b",{ A_REG_M,A_IND_R0_REG_N},{HEX_0,REG_N,REG_M,HEX_4}}, 118 {"mov.b",{ A_REG_M,A_DEC_N},{HEX_2,REG_N,REG_M,HEX_4}}, 119 {"mov.b",{ A_REG_M,A_IND_N},{HEX_2,REG_N,REG_M,HEX_0}}, 120 {"mov.b",{A_DISP_REG_M,A_R0},{HEX_8,HEX_4,REG_M,IMM_4}}, 121 {"mov.b",{A_DISP_GBR,A_R0},{HEX_C,HEX_4,IMM_8}}, 122 {"mov.b",{A_IND_R0_REG_M,A_REG_N},{HEX_0,REG_N,REG_M,HEX_C}}, 123 {"mov.b",{A_INC_M,A_REG_N},{HEX_6,REG_N,REG_M,HEX_4}}, 124 {"mov.b",{A_IND_M,A_REG_N},{HEX_6,REG_N,REG_M,HEX_0}}, 125 {"mov.b",{A_R0,A_DISP_REG_M},{HEX_8,HEX_0,REG_M,IMM_4}}, 126 {"mov.b",{A_R0,A_DISP_GBR},{HEX_C,HEX_0,IMM_8}}, 127 {"mov.l",{ A_REG_M,A_DISP_REG_N},{HEX_1,REG_N,REG_M,IMM_4BY4}}, 128 {"mov.l",{ A_REG_M,A_IND_R0_REG_N},{HEX_0,REG_N,REG_M,HEX_6}}, 129 {"mov.l",{ A_REG_M,A_DEC_N},{HEX_2,REG_N,REG_M,HEX_6}}, 130 {"mov.l",{ A_REG_M,A_IND_N},{HEX_2,REG_N,REG_M,HEX_2}}, 131 {"mov.l",{A_DISP_REG_M,A_REG_N},{HEX_5,REG_N,REG_M,IMM_4BY4}}, 132 {"mov.l",{A_DISP_GBR,A_R0},{HEX_C,HEX_6,IMM_8BY4}}, 133 {"mov.l",{A_DISP_PC,A_REG_N},{HEX_D,REG_N,PCRELIMM_8BY4}}, 134 {"mov.l",{A_IND_R0_REG_M,A_REG_N},{HEX_0,REG_N,REG_M,HEX_E}}, 135 {"mov.l",{A_INC_M,A_REG_N},{HEX_6,REG_N,REG_M,HEX_6}}, 136 {"mov.l",{A_IND_M,A_REG_N},{HEX_6,REG_N,REG_M,HEX_2}}, 137 {"mov.l",{A_R0,A_DISP_GBR},{HEX_C,HEX_2,IMM_8BY4}}, 138 {"mov.w",{ A_REG_M,A_IND_R0_REG_N},{HEX_0,REG_N,REG_M,HEX_5}}, 139 {"mov.w",{ A_REG_M,A_DEC_N},{HEX_2,REG_N,REG_M,HEX_5}}, 140 {"mov.w",{ A_REG_M,A_IND_N},{HEX_2,REG_N,REG_M,HEX_1}}, 141 {"mov.w",{A_DISP_REG_M,A_R0},{HEX_8,HEX_5,REG_M,IMM_4BY2}}, 142 {"mov.w",{A_DISP_GBR,A_R0},{HEX_C,HEX_5,IMM_8BY2}}, 143 {"mov.w",{A_DISP_PC,A_REG_N},{HEX_9,REG_N,PCRELIMM_8BY2}}, 144 {"mov.w",{A_IND_R0_REG_M,A_REG_N},{HEX_0,REG_N,REG_M,HEX_D}}, 145 {"mov.w",{A_INC_M,A_REG_N},{HEX_6,REG_N,REG_M,HEX_5}}, 146 {"mov.w",{A_IND_M,A_REG_N},{HEX_6,REG_N,REG_M,HEX_1}}, 147 {"mov.w",{A_R0,A_DISP_REG_M},{HEX_8,HEX_1,REG_M,IMM_4BY2}}, 148 {"mov.w",{A_R0,A_DISP_GBR},{HEX_C,HEX_1,IMM_8BY2}}, 149 {"mova",{A_DISP_PC,A_R0},{HEX_C,HEX_7,PCRELIMM_8BY4}}, 150 {"movca.l",{A_R0,A_IND_N},{HEX_0,REG_N,HEX_C,HEX_3}}, 151 {"movt",{A_REG_N},{HEX_0,REG_N,HEX_2,HEX_9}}, 152 {"muls",{ A_REG_M,A_REG_N},{HEX_2,REG_N,REG_M,HEX_F}}, 153 {"mul.l",{ A_REG_M,A_REG_N},{HEX_0,REG_N,REG_M,HEX_7}}, 154 {"mulu",{ A_REG_M,A_REG_N},{HEX_2,REG_N,REG_M,HEX_E}}, 155 {"neg",{ A_REG_M,A_REG_N},{HEX_6,REG_N,REG_M,HEX_B}}, 156 {"negc",{ A_REG_M,A_REG_N},{HEX_6,REG_N,REG_M,HEX_A}}, 157 {"nop",{0},{HEX_0,HEX_0,HEX_0,HEX_9}}, 158 {"not",{ A_REG_M,A_REG_N},{HEX_6,REG_N,REG_M,HEX_7}}, 159 {"ocbi",{A_IND_N},{HEX_0,REG_N,HEX_9,HEX_3}}, 160 {"ocbp",{A_IND_N},{HEX_0,REG_N,HEX_A,HEX_3}}, 161 {"ocbwb",{A_IND_N},{HEX_0,REG_N,HEX_B,HEX_3}}, 162 {"or",{A_IMM,A_R0},{HEX_C,HEX_B,IMM_8}}, 163 {"or",{ A_REG_M,A_REG_N},{HEX_2,REG_N,REG_M,HEX_B}}, 164 {"or.b",{A_IMM,A_R0_GBR},{HEX_C,HEX_F,IMM_8}}, 165 {"pref",{A_IND_N},{HEX_0,REG_N,HEX_8,HEX_3}}, 166 {"rotcl",{A_REG_N},{HEX_4,REG_N,HEX_2,HEX_4}}, 167 {"rotcr",{A_REG_N},{HEX_4,REG_N,HEX_2,HEX_5}}, 168 {"rotl",{A_REG_N},{HEX_4,REG_N,HEX_0,HEX_4}}, 169 {"rotr",{A_REG_N},{HEX_4,REG_N,HEX_0,HEX_5}}, 170 {"rte",{0},{HEX_0,HEX_0,HEX_2,HEX_B}}, 171 {"rts",{0},{HEX_0,HEX_0,HEX_0,HEX_B}}, 172 {"sets",{0},{HEX_0,HEX_0,HEX_5,HEX_8}}, 173 {"sett",{0},{HEX_0,HEX_0,HEX_1,HEX_8}}, 174 {"shad",{ A_REG_M,A_REG_N},{HEX_4,REG_N,REG_M,HEX_C}}, 175 {"shld",{ A_REG_M,A_REG_N},{HEX_4,REG_N,REG_M,HEX_D}}, 176 {"shal",{A_REG_N},{HEX_4,REG_N,HEX_2,HEX_0}}, 177 {"shar",{A_REG_N},{HEX_4,REG_N,HEX_2,HEX_1}}, 178 {"shll",{A_REG_N},{HEX_4,REG_N,HEX_0,HEX_0}}, 179 {"shll16",{A_REG_N},{HEX_4,REG_N,HEX_2,HEX_8}}, 180 {"shll2",{A_REG_N},{HEX_4,REG_N,HEX_0,HEX_8}}, 181 {"shll8",{A_REG_N},{HEX_4,REG_N,HEX_1,HEX_8}}, 182 {"shlr",{A_REG_N},{HEX_4,REG_N,HEX_0,HEX_1}}, 183 {"shlr16",{A_REG_N},{HEX_4,REG_N,HEX_2,HEX_9}}, 184 {"shlr2",{A_REG_N},{HEX_4,REG_N,HEX_0,HEX_9}}, 185 {"shlr8",{A_REG_N},{HEX_4,REG_N,HEX_1,HEX_9}}, 186 {"sleep",{0},{HEX_0,HEX_0,HEX_1,HEX_B}}, 187 {"stc",{A_SR,A_REG_N},{HEX_0,REG_N,HEX_0,HEX_2}}, 188 {"stc",{A_GBR,A_REG_N},{HEX_0,REG_N,HEX_1,HEX_2}}, 189 {"stc",{A_VBR,A_REG_N},{HEX_0,REG_N,HEX_2,HEX_2}}, 190 {"stc",{A_SSR,A_REG_N},{HEX_0,REG_N,HEX_3,HEX_2}}, 191 {"stc",{A_SPC,A_REG_N},{HEX_0,REG_N,HEX_4,HEX_2}}, 192 {"stc",{A_SGR,A_REG_N},{HEX_0,REG_N,HEX_6,HEX_2}}, 193 {"stc",{A_DBR,A_REG_N},{HEX_0,REG_N,HEX_7,HEX_2}}, 194 {"stc",{A_REG_B,A_REG_N},{HEX_0,REG_N,REG_B,HEX_2}}, 195 {"stc.l",{A_SR,A_DEC_N},{HEX_4,REG_N,HEX_0,HEX_3}}, 196 {"stc.l",{A_GBR,A_DEC_N},{HEX_4,REG_N,HEX_1,HEX_3}}, 197 {"stc.l",{A_VBR,A_DEC_N},{HEX_4,REG_N,HEX_2,HEX_3}}, 198 {"stc.l",{A_SSR,A_DEC_N},{HEX_4,REG_N,HEX_3,HEX_3}}, 199 {"stc.l",{A_SPC,A_DEC_N},{HEX_4,REG_N,HEX_4,HEX_3}}, 200 {"stc.l",{A_SGR,A_DEC_N},{HEX_4,REG_N,HEX_6,HEX_3}}, 201 {"stc.l",{A_DBR,A_DEC_N},{HEX_4,REG_N,HEX_7,HEX_3}}, 202 {"stc.l",{A_REG_B,A_DEC_N},{HEX_4,REG_N,REG_B,HEX_3}}, 203 {"sts",{A_MACH,A_REG_N},{HEX_0,REG_N,HEX_0,HEX_A}}, 204 {"sts",{A_MACL,A_REG_N},{HEX_0,REG_N,HEX_1,HEX_A}}, 205 {"sts",{A_PR,A_REG_N},{HEX_0,REG_N,HEX_2,HEX_A}}, 206 {"sts",{FPUL_M,A_REG_N},{HEX_0,REG_N,HEX_5,HEX_A}}, 207 {"sts",{FPSCR_M,A_REG_N},{HEX_0,REG_N,HEX_6,HEX_A}}, 208 {"sts.l",{A_MACH,A_DEC_N},{HEX_4,REG_N,HEX_0,HEX_2}}, 209 {"sts.l",{A_MACL,A_DEC_N},{HEX_4,REG_N,HEX_1,HEX_2}}, 210 {"sts.l",{A_PR,A_DEC_N},{HEX_4,REG_N,HEX_2,HEX_2}}, 211 {"sts.l",{FPUL_M,A_DEC_N},{HEX_4,REG_N,HEX_5,HEX_2}}, 212 {"sts.l",{FPSCR_M,A_DEC_N},{HEX_4,REG_N,HEX_6,HEX_2}}, 213 {"sub",{ A_REG_M,A_REG_N},{HEX_3,REG_N,REG_M,HEX_8}}, 214 {"subc",{ A_REG_M,A_REG_N},{HEX_3,REG_N,REG_M,HEX_A}}, 215 {"subv",{ A_REG_M,A_REG_N},{HEX_3,REG_N,REG_M,HEX_B}}, 216 {"swap.b",{ A_REG_M,A_REG_N},{HEX_6,REG_N,REG_M,HEX_8}}, 217 {"swap.w",{ A_REG_M,A_REG_N},{HEX_6,REG_N,REG_M,HEX_9}}, 218 {"tas.b",{A_IND_N},{HEX_4,REG_N,HEX_1,HEX_B}}, 219 {"trapa",{A_IMM},{HEX_C,HEX_3,IMM_8}}, 220 {"tst",{A_IMM,A_R0},{HEX_C,HEX_8,IMM_8}}, 221 {"tst",{ A_REG_M,A_REG_N},{HEX_2,REG_N,REG_M,HEX_8}}, 222 {"tst.b",{A_IMM,A_R0_GBR},{HEX_C,HEX_C,IMM_8}}, 223 {"xor",{A_IMM,A_R0},{HEX_C,HEX_A,IMM_8}}, 224 {"xor",{ A_REG_M,A_REG_N},{HEX_2,REG_N,REG_M,HEX_A}}, 225 {"xor.b",{A_IMM,A_R0_GBR},{HEX_C,HEX_E,IMM_8}}, 226 {"xtrct",{ A_REG_M,A_REG_N},{HEX_2,REG_N,REG_M,HEX_D}}, 227 {"mul.l",{ A_REG_M,A_REG_N},{HEX_0,REG_N,REG_M,HEX_7}}, 228 {"dt",{A_REG_N},{HEX_4,REG_N,HEX_1,HEX_0}}, 229 {"dmuls.l",{ A_REG_M,A_REG_N},{HEX_3,REG_N,REG_M,HEX_D}}, 230 {"dmulu.l",{ A_REG_M,A_REG_N},{HEX_3,REG_N,REG_M,HEX_5}}, 231 {"mac.l",{A_INC_M,A_INC_N},{HEX_0,REG_N,REG_M,HEX_F}}, 232 {"braf",{A_REG_N},{HEX_0,REG_N,HEX_2,HEX_3}}, 233 {"bsrf",{A_REG_N},{HEX_0,REG_N,HEX_0,HEX_3}}, 234 {"fabs",{FD_REG_N},{HEX_F,REG_N,HEX_5,HEX_D}}, 235 {"fadd",{F_REG_M,F_REG_N},{HEX_F,REG_N,REG_M,HEX_0}}, 236 {"fadd",{D_REG_M,D_REG_N},{HEX_F,REG_N,REG_M,HEX_0}}, 237 {"fcmp/eq",{F_REG_M,F_REG_N},{HEX_F,REG_N,REG_M,HEX_4}}, 238 {"fcmp/eq",{D_REG_M,D_REG_N},{HEX_F,REG_N,REG_M,HEX_4}}, 239 {"fcmp/gt",{F_REG_M,F_REG_N},{HEX_F,REG_N,REG_M,HEX_5}}, 240 {"fcmp/gt",{D_REG_M,D_REG_N},{HEX_F,REG_N,REG_M,HEX_5}}, 241 {"fcnvds",{D_REG_N,FPUL_M},{HEX_F,REG_N,HEX_B,HEX_D}}, 242 {"fcnvsd",{FPUL_M,D_REG_N},{HEX_F,REG_N,HEX_A,HEX_D}}, 243 {"fdiv",{F_REG_M,F_REG_N},{HEX_F,REG_N,REG_M,HEX_3}}, 244 {"fdiv",{D_REG_M,D_REG_N},{HEX_F,REG_N,REG_M,HEX_3}}, 245 {"fipr",{V_REG_M,V_REG_N},{HEX_F,REG_NM,HEX_E,HEX_D}}, 246 {"fldi0",{F_REG_N},{HEX_F,REG_N,HEX_8,HEX_D}}, 247 {"fldi1",{F_REG_N},{HEX_F,REG_N,HEX_9,HEX_D}}, 248 {"flds",{F_REG_N,FPUL_M},{HEX_F,REG_N,HEX_1,HEX_D}}, 249 {"float",{FPUL_M,FD_REG_N},{HEX_F,REG_N,HEX_2,HEX_D}}, 250 {"fmac",{F_FR0,F_REG_M,F_REG_N},{HEX_F,REG_N,REG_M,HEX_E}}, 251 {"fmov",{F_REG_M,F_REG_N},{HEX_F,REG_N,REG_M,HEX_C}}, 252 {"fmov",{DX_REG_M,DX_REG_N},{HEX_F,REG_N,REG_M,HEX_C}}, 253 {"fmov",{A_IND_M,F_REG_N},{HEX_F,REG_N,REG_M,HEX_8}}, 254 {"fmov",{A_IND_M,DX_REG_N},{HEX_F,REG_N,REG_M,HEX_8}}, 255 {"fmov",{F_REG_M,A_IND_N},{HEX_F,REG_N,REG_M,HEX_A}}, 256 {"fmov",{DX_REG_M,A_IND_N},{HEX_F,REG_N,REG_M,HEX_A}}, 257 {"fmov",{A_INC_M,F_REG_N},{HEX_F,REG_N,REG_M,HEX_9}}, 258 {"fmov",{A_INC_M,DX_REG_N},{HEX_F,REG_N,REG_M,HEX_9}}, 259 {"fmov",{F_REG_M,A_DEC_N},{HEX_F,REG_N,REG_M,HEX_B}}, 260 {"fmov",{DX_REG_M,A_DEC_N},{HEX_F,REG_N,REG_M,HEX_B}}, 261 {"fmov",{A_IND_R0_REG_M,F_REG_N},{HEX_F,REG_N,REG_M,HEX_6}}, 262 {"fmov",{A_IND_R0_REG_M,DX_REG_N},{HEX_F,REG_N,REG_M,HEX_6}}, 263 {"fmov",{F_REG_M,A_IND_R0_REG_N},{HEX_F,REG_N,REG_M,HEX_7}}, 264 {"fmov",{DX_REG_M,A_IND_R0_REG_N},{HEX_F,REG_N,REG_M,HEX_7}}, 265 {"fmov.d",{A_IND_M,DX_REG_N},{HEX_F,REG_N,REG_M,HEX_8}}, 266 {"fmov.d",{DX_REG_M,A_IND_N},{HEX_F,REG_N,REG_M,HEX_A}}, 267 {"fmov.d",{A_INC_M,DX_REG_N},{HEX_F,REG_N,REG_M,HEX_9}}, 268 {"fmov.d",{DX_REG_M,A_DEC_N},{HEX_F,REG_N,REG_M,HEX_B}}, 269 {"fmov.d",{A_IND_R0_REG_M,DX_REG_N},{HEX_F,REG_N,REG_M,HEX_6}}, 270 {"fmov.d",{DX_REG_M,A_IND_R0_REG_N},{HEX_F,REG_N,REG_M,HEX_7}}, 271 {"fmov.s",{A_IND_M,F_REG_N},{HEX_F,REG_N,REG_M,HEX_8}}, 272 {"fmov.s",{F_REG_M,A_IND_N},{HEX_F,REG_N,REG_M,HEX_A}}, 273 {"fmov.s",{A_INC_M,F_REG_N},{HEX_F,REG_N,REG_M,HEX_9}}, 274 {"fmov.s",{F_REG_M,A_DEC_N},{HEX_F,REG_N,REG_M,HEX_B}}, 275 {"fmov.s",{A_IND_R0_REG_M,F_REG_N},{HEX_F,REG_N,REG_M,HEX_6}}, 276 {"fmov.s",{F_REG_M,A_IND_R0_REG_N},{HEX_F,REG_N,REG_M,HEX_7}}, 277 {"fmul",{F_REG_M,F_REG_N},{HEX_F,REG_N,REG_M,HEX_2}}, 278 {"fmul",{D_REG_M,D_REG_N},{HEX_F,REG_N,REG_M,HEX_2}}, 279 {"fneg",{FD_REG_N},{HEX_F,REG_N,HEX_4,HEX_D}}, 280 {"frchg",{0},{HEX_F,HEX_B,HEX_F,HEX_D}}, 281 {"fschg",{0},{HEX_F,HEX_3,HEX_F,HEX_D}}, 282 {"fsqrt",{FD_REG_N},{HEX_F,REG_N,HEX_6,HEX_D}}, 283 {"fsts",{FPUL_M,F_REG_N},{HEX_F,REG_N,HEX_0,HEX_D}}, 284 {"fsub",{F_REG_M,F_REG_N},{HEX_F,REG_N,REG_M,HEX_1}}, 285 {"fsub",{D_REG_M,D_REG_N},{HEX_F,REG_N,REG_M,HEX_1}}, 286 {"ftrc",{FD_REG_N,FPUL_M},{HEX_F,REG_N,HEX_3,HEX_D}}, 287 {"ftrv",{XMTRX_M4,V_REG_N},{HEX_F,REG_NM,HEX_F,HEX_D}}, 288 { 0 }, 289 }; 290 291 static void print_sh_insn(u32 memaddr, u16 insn) 292 { 293 int relmask = ~0; 294 int nibs[4] = { (insn >> 12) & 0xf, (insn >> 8) & 0xf, (insn >> 4) & 0xf, insn & 0xf}; 295 int lastsp; 296 struct sh_opcode_info *op = sh_table; 297 298 for (; op->name; op++) { 299 int n; 300 int imm = 0; 301 int rn = 0; 302 int rm = 0; 303 int rb = 0; 304 int disp_pc; 305 int disp_pc_addr = 0; 306 307 for (n = 0; n < 4; n++) { 308 int i = op->nibbles[n]; 309 310 if (i < 16) { 311 if (nibs[n] == i) 312 continue; 313 goto fail; 314 } 315 switch (i) { 316 case BRANCH_8: 317 imm = (nibs[2] << 4) | (nibs[3]); 318 if (imm & 0x80) 319 imm |= ~0xff; 320 imm = ((char)imm) * 2 + 4 ; 321 goto ok; 322 case BRANCH_12: 323 imm = ((nibs[1]) << 8) | (nibs[2] << 4) | (nibs[3]); 324 if (imm & 0x800) 325 imm |= ~0xfff; 326 imm = imm * 2 + 4; 327 goto ok; 328 case IMM_4: 329 imm = nibs[3]; 330 goto ok; 331 case IMM_4BY2: 332 imm = nibs[3] <<1; 333 goto ok; 334 case IMM_4BY4: 335 imm = nibs[3] <<2; 336 goto ok; 337 case IMM_8: 338 imm = (nibs[2] << 4) | nibs[3]; 339 goto ok; 340 case PCRELIMM_8BY2: 341 imm = ((nibs[2] << 4) | nibs[3]) <<1; 342 relmask = ~1; 343 goto ok; 344 case PCRELIMM_8BY4: 345 imm = ((nibs[2] << 4) | nibs[3]) <<2; 346 relmask = ~3; 347 goto ok; 348 case IMM_8BY2: 349 imm = ((nibs[2] << 4) | nibs[3]) <<1; 350 goto ok; 351 case IMM_8BY4: 352 imm = ((nibs[2] << 4) | nibs[3]) <<2; 353 goto ok; 354 case DISP_8: 355 imm = (nibs[2] << 4) | (nibs[3]); 356 goto ok; 357 case DISP_4: 358 imm = nibs[3]; 359 goto ok; 360 case REG_N: 361 rn = nibs[n]; 362 break; 363 case REG_M: 364 rm = nibs[n]; 365 break; 366 case REG_NM: 367 rn = (nibs[n] & 0xc) >> 2; 368 rm = (nibs[n] & 0x3); 369 break; 370 case REG_B: 371 rb = nibs[n] & 0x07; 372 break; 373 default: 374 return; 375 } 376 } 377 378 ok: 379 printk("%-8s ", op->name); 380 lastsp = (op->arg[0] == A_END); 381 disp_pc = 0; 382 for (n = 0; n < 6 && op->arg[n] != A_END; n++) { 383 if (n && op->arg[1] != A_END) 384 printk(", "); 385 switch (op->arg[n]) { 386 case A_IMM: 387 printk("#%d", (char)(imm)); 388 break; 389 case A_R0: 390 printk("r0"); 391 break; 392 case A_REG_N: 393 printk("r%d", rn); 394 break; 395 case A_INC_N: 396 printk("@r%d+", rn); 397 break; 398 case A_DEC_N: 399 printk("@-r%d", rn); 400 break; 401 case A_IND_N: 402 printk("@r%d", rn); 403 break; 404 case A_DISP_REG_N: 405 printk("@(%d,r%d)", imm, rn); 406 break; 407 case A_REG_M: 408 printk("r%d", rm); 409 break; 410 case A_INC_M: 411 printk("@r%d+", rm); 412 break; 413 case A_DEC_M: 414 printk("@-r%d", rm); 415 break; 416 case A_IND_M: 417 printk("@r%d", rm); 418 break; 419 case A_DISP_REG_M: 420 printk("@(%d,r%d)", imm, rm); 421 break; 422 case A_REG_B: 423 printk("r%d_bank", rb); 424 break; 425 case A_DISP_PC: 426 disp_pc = 1; 427 disp_pc_addr = imm + 4 + (memaddr & relmask); 428 printk("%08x <%pS>", disp_pc_addr, 429 (void *)disp_pc_addr); 430 break; 431 case A_IND_R0_REG_N: 432 printk("@(r0,r%d)", rn); 433 break; 434 case A_IND_R0_REG_M: 435 printk("@(r0,r%d)", rm); 436 break; 437 case A_DISP_GBR: 438 printk("@(%d,gbr)",imm); 439 break; 440 case A_R0_GBR: 441 printk("@(r0,gbr)"); 442 break; 443 case A_BDISP12: 444 case A_BDISP8: 445 printk("%08x", imm + memaddr); 446 break; 447 case A_SR: 448 printk("sr"); 449 break; 450 case A_GBR: 451 printk("gbr"); 452 break; 453 case A_VBR: 454 printk("vbr"); 455 break; 456 case A_SSR: 457 printk("ssr"); 458 break; 459 case A_SPC: 460 printk("spc"); 461 break; 462 case A_MACH: 463 printk("mach"); 464 break; 465 case A_MACL: 466 printk("macl"); 467 break; 468 case A_PR: 469 printk("pr"); 470 break; 471 case A_SGR: 472 printk("sgr"); 473 break; 474 case A_DBR: 475 printk("dbr"); 476 break; 477 case FD_REG_N: 478 if (0) 479 goto d_reg_n; 480 case F_REG_N: 481 printk("fr%d", rn); 482 break; 483 case F_REG_M: 484 printk("fr%d", rm); 485 break; 486 case DX_REG_N: 487 if (rn & 1) { 488 printk("xd%d", rn & ~1); 489 break; 490 } 491 d_reg_n: 492 case D_REG_N: 493 printk("dr%d", rn); 494 break; 495 case DX_REG_M: 496 if (rm & 1) { 497 printk("xd%d", rm & ~1); 498 break; 499 } 500 case D_REG_M: 501 printk("dr%d", rm); 502 break; 503 case FPSCR_M: 504 case FPSCR_N: 505 printk("fpscr"); 506 break; 507 case FPUL_M: 508 case FPUL_N: 509 printk("fpul"); 510 break; 511 case F_FR0: 512 printk("fr0"); 513 break; 514 case V_REG_N: 515 printk("fv%d", rn*4); 516 break; 517 case V_REG_M: 518 printk("fv%d", rm*4); 519 break; 520 case XMTRX_M4: 521 printk("xmtrx"); 522 break; 523 default: 524 return; 525 } 526 } 527 528 if (disp_pc && strcmp(op->name, "mova") != 0) { 529 u32 val; 530 531 if (relmask == ~1) 532 __get_user(val, (u16 *)disp_pc_addr); 533 else 534 __get_user(val, (u32 *)disp_pc_addr); 535 536 printk(" ! %08x <%pS>", val, (void *)val); 537 } 538 539 return; 540 fail: 541 ; 542 543 } 544 545 printk(".word 0x%x%x%x%x", nibs[0], nibs[1], nibs[2], nibs[3]); 546 } 547 548 void show_code(struct pt_regs *regs) 549 { 550 unsigned short *pc = (unsigned short *)regs->pc; 551 long i; 552 553 if (regs->pc & 0x1) 554 return; 555 556 printk("Code:\n"); 557 558 for (i = -3 ; i < 6 ; i++) { 559 unsigned short insn; 560 561 if (__get_user(insn, pc + i)) { 562 printk(" (Bad address in pc)\n"); 563 break; 564 } 565 566 printk("%s%08lx: ", (i ? " ": "->"), (unsigned long)(pc + i)); 567 print_sh_insn((unsigned long)(pc + i), insn); 568 printk("\n"); 569 } 570 571 printk("\n"); 572 } 573