dis.c 41 KB

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  1. /*
  2. * arch/s390/kernel/dis.c
  3. *
  4. * Disassemble s390 instructions.
  5. *
  6. * Copyright IBM Corp. 2007
  7. * Author(s): Martin Schwidefsky (schwidefsky@de.ibm.com),
  8. */
  9. #include <linux/sched.h>
  10. #include <linux/kernel.h>
  11. #include <linux/string.h>
  12. #include <linux/errno.h>
  13. #include <linux/ptrace.h>
  14. #include <linux/timer.h>
  15. #include <linux/mm.h>
  16. #include <linux/smp.h>
  17. #include <linux/smp_lock.h>
  18. #include <linux/init.h>
  19. #include <linux/interrupt.h>
  20. #include <linux/delay.h>
  21. #include <linux/module.h>
  22. #include <linux/kallsyms.h>
  23. #include <linux/reboot.h>
  24. #include <linux/kprobes.h>
  25. #include <linux/kdebug.h>
  26. #include <asm/system.h>
  27. #include <asm/uaccess.h>
  28. #include <asm/io.h>
  29. #include <asm/atomic.h>
  30. #include <asm/mathemu.h>
  31. #include <asm/cpcmd.h>
  32. #include <asm/s390_ext.h>
  33. #include <asm/lowcore.h>
  34. #include <asm/debug.h>
  35. #ifndef CONFIG_64BIT
  36. #define ONELONG "%08lx: "
  37. #else /* CONFIG_64BIT */
  38. #define ONELONG "%016lx: "
  39. #endif /* CONFIG_64BIT */
  40. #define OPERAND_GPR 0x1 /* Operand printed as %rx */
  41. #define OPERAND_FPR 0x2 /* Operand printed as %fx */
  42. #define OPERAND_AR 0x4 /* Operand printed as %ax */
  43. #define OPERAND_CR 0x8 /* Operand printed as %cx */
  44. #define OPERAND_DISP 0x10 /* Operand printed as displacement */
  45. #define OPERAND_BASE 0x20 /* Operand printed as base register */
  46. #define OPERAND_INDEX 0x40 /* Operand printed as index register */
  47. #define OPERAND_PCREL 0x80 /* Operand printed as pc-relative symbol */
  48. #define OPERAND_SIGNED 0x100 /* Operand printed as signed value */
  49. #define OPERAND_LENGTH 0x200 /* Operand printed as length (+1) */
  50. enum {
  51. UNUSED, /* Indicates the end of the operand list */
  52. R_8, /* GPR starting at position 8 */
  53. R_12, /* GPR starting at position 12 */
  54. R_16, /* GPR starting at position 16 */
  55. R_20, /* GPR starting at position 20 */
  56. R_24, /* GPR starting at position 24 */
  57. R_28, /* GPR starting at position 28 */
  58. R_32, /* GPR starting at position 32 */
  59. F_8, /* FPR starting at position 8 */
  60. F_12, /* FPR starting at position 12 */
  61. F_16, /* FPR starting at position 16 */
  62. F_20, /* FPR starting at position 16 */
  63. F_24, /* FPR starting at position 24 */
  64. F_28, /* FPR starting at position 28 */
  65. F_32, /* FPR starting at position 32 */
  66. A_8, /* Access reg. starting at position 8 */
  67. A_12, /* Access reg. starting at position 12 */
  68. A_24, /* Access reg. starting at position 24 */
  69. A_28, /* Access reg. starting at position 28 */
  70. C_8, /* Control reg. starting at position 8 */
  71. C_12, /* Control reg. starting at position 12 */
  72. B_16, /* Base register starting at position 16 */
  73. B_32, /* Base register starting at position 32 */
  74. X_12, /* Index register starting at position 12 */
  75. D_20, /* Displacement starting at position 20 */
  76. D_36, /* Displacement starting at position 36 */
  77. D20_20, /* 20 bit displacement starting at 20 */
  78. L4_8, /* 4 bit length starting at position 8 */
  79. L4_12, /* 4 bit length starting at position 12 */
  80. L8_8, /* 8 bit length starting at position 8 */
  81. U4_8, /* 4 bit unsigned value starting at 8 */
  82. U4_12, /* 4 bit unsigned value starting at 12 */
  83. U4_16, /* 4 bit unsigned value starting at 16 */
  84. U4_20, /* 4 bit unsigned value starting at 20 */
  85. U8_8, /* 8 bit unsigned value starting at 8 */
  86. U8_16, /* 8 bit unsigned value starting at 16 */
  87. I16_16, /* 16 bit signed value starting at 16 */
  88. U16_16, /* 16 bit unsigned value starting at 16 */
  89. J16_16, /* PC relative jump offset at 16 */
  90. J32_16, /* PC relative long offset at 16 */
  91. I32_16, /* 32 bit signed value starting at 16 */
  92. U32_16, /* 32 bit unsigned value starting at 16 */
  93. M_16, /* 4 bit optional mask starting at 16 */
  94. RO_28, /* optional GPR starting at position 28 */
  95. };
  96. /*
  97. * Enumeration of the different instruction formats.
  98. * For details consult the principles of operation.
  99. */
  100. enum {
  101. INSTR_INVALID,
  102. INSTR_E, INSTR_RIE_RRP, INSTR_RIL_RI, INSTR_RIL_RP, INSTR_RIL_RU,
  103. INSTR_RIL_UP, INSTR_RI_RI, INSTR_RI_RP, INSTR_RI_RU, INSTR_RI_UP,
  104. INSTR_RRE_00, INSTR_RRE_0R, INSTR_RRE_AA, INSTR_RRE_AR, INSTR_RRE_F0,
  105. INSTR_RRE_FF, INSTR_RRE_R0, INSTR_RRE_RA, INSTR_RRE_RF, INSTR_RRE_RR,
  106. INSTR_RRE_RR_OPT, INSTR_RRF_F0FF, INSTR_RRF_FUFF, INSTR_RRF_M0RR,
  107. INSTR_RRF_R0RR, INSTR_RRF_RURR, INSTR_RRF_U0FF, INSTR_RRF_U0RF,
  108. INSTR_RR_FF, INSTR_RR_R0, INSTR_RR_RR, INSTR_RR_U0, INSTR_RR_UR,
  109. INSTR_RSE_CCRD, INSTR_RSE_RRRD, INSTR_RSE_RURD, INSTR_RSI_RRP,
  110. INSTR_RSL_R0RD, INSTR_RSY_AARD, INSTR_RSY_CCRD, INSTR_RSY_RRRD,
  111. INSTR_RSY_RURD, INSTR_RS_AARD, INSTR_RS_CCRD, INSTR_RS_R0RD,
  112. INSTR_RS_RRRD, INSTR_RS_RURD, INSTR_RXE_FRRD, INSTR_RXE_RRRD,
  113. INSTR_RXF_FRRDF, INSTR_RXY_FRRD, INSTR_RXY_RRRD, INSTR_RX_FRRD,
  114. INSTR_RX_RRRD, INSTR_RX_URRD, INSTR_SIY_URD, INSTR_SI_URD,
  115. INSTR_SSE_RDRD, INSTR_SSF_RRDRD, INSTR_SS_L0RDRD, INSTR_SS_LIRDRD,
  116. INSTR_SS_LLRDRD, INSTR_SS_RRRDRD, INSTR_SS_RRRDRD2, INSTR_SS_RRRDRD3,
  117. INSTR_S_00, INSTR_S_RD,
  118. };
  119. struct operand {
  120. int bits; /* The number of bits in the operand. */
  121. int shift; /* The number of bits to shift. */
  122. int flags; /* One bit syntax flags. */
  123. };
  124. struct insn {
  125. const char name[5];
  126. unsigned char opfrag;
  127. unsigned char format;
  128. };
  129. static const struct operand operands[] =
  130. {
  131. [UNUSED] = { 0, 0, 0 },
  132. [R_8] = { 4, 8, OPERAND_GPR },
  133. [R_12] = { 4, 12, OPERAND_GPR },
  134. [R_16] = { 4, 16, OPERAND_GPR },
  135. [R_20] = { 4, 20, OPERAND_GPR },
  136. [R_24] = { 4, 24, OPERAND_GPR },
  137. [R_28] = { 4, 28, OPERAND_GPR },
  138. [R_32] = { 4, 32, OPERAND_GPR },
  139. [F_8] = { 4, 8, OPERAND_FPR },
  140. [F_12] = { 4, 12, OPERAND_FPR },
  141. [F_16] = { 4, 16, OPERAND_FPR },
  142. [F_20] = { 4, 16, OPERAND_FPR },
  143. [F_24] = { 4, 24, OPERAND_FPR },
  144. [F_28] = { 4, 28, OPERAND_FPR },
  145. [F_32] = { 4, 32, OPERAND_FPR },
  146. [A_8] = { 4, 8, OPERAND_AR },
  147. [A_12] = { 4, 12, OPERAND_AR },
  148. [A_24] = { 4, 24, OPERAND_AR },
  149. [A_28] = { 4, 28, OPERAND_AR },
  150. [C_8] = { 4, 8, OPERAND_CR },
  151. [C_12] = { 4, 12, OPERAND_CR },
  152. [B_16] = { 4, 16, OPERAND_BASE | OPERAND_GPR },
  153. [B_32] = { 4, 32, OPERAND_BASE | OPERAND_GPR },
  154. [X_12] = { 4, 12, OPERAND_INDEX | OPERAND_GPR },
  155. [D_20] = { 12, 20, OPERAND_DISP },
  156. [D_36] = { 12, 36, OPERAND_DISP },
  157. [D20_20] = { 20, 20, OPERAND_DISP | OPERAND_SIGNED },
  158. [L4_8] = { 4, 8, OPERAND_LENGTH },
  159. [L4_12] = { 4, 12, OPERAND_LENGTH },
  160. [L8_8] = { 8, 8, OPERAND_LENGTH },
  161. [U4_8] = { 4, 8, 0 },
  162. [U4_12] = { 4, 12, 0 },
  163. [U4_16] = { 4, 16, 0 },
  164. [U4_20] = { 4, 20, 0 },
  165. [U8_8] = { 8, 8, 0 },
  166. [U8_16] = { 8, 16, 0 },
  167. [I16_16] = { 16, 16, OPERAND_SIGNED },
  168. [U16_16] = { 16, 16, 0 },
  169. [J16_16] = { 16, 16, OPERAND_PCREL },
  170. [J32_16] = { 32, 16, OPERAND_PCREL },
  171. [I32_16] = { 32, 16, OPERAND_SIGNED },
  172. [U32_16] = { 32, 16, 0 },
  173. [M_16] = { 4, 16, 0 },
  174. [RO_28] = { 4, 28, OPERAND_GPR }
  175. };
  176. static const unsigned char formats[][7] = {
  177. [INSTR_E] = { 0xff, 0,0,0,0,0,0 }, /* e.g. pr */
  178. [INSTR_RIE_RRP] = { 0xff, R_8,R_12,J16_16,0,0,0 }, /* e.g. brxhg */
  179. [INSTR_RIL_RP] = { 0x0f, R_8,J32_16,0,0,0,0 }, /* e.g. brasl */
  180. [INSTR_RIL_UP] = { 0x0f, U4_8,J32_16,0,0,0,0 }, /* e.g. brcl */
  181. [INSTR_RIL_RI] = { 0x0f, R_8,I32_16,0,0,0,0 }, /* e.g. afi */
  182. [INSTR_RIL_RU] = { 0x0f, R_8,U32_16,0,0,0,0 }, /* e.g. alfi */
  183. [INSTR_RI_RI] = { 0x0f, R_8,I16_16,0,0,0,0 }, /* e.g. ahi */
  184. [INSTR_RI_RP] = { 0x0f, R_8,J16_16,0,0,0,0 }, /* e.g. brct */
  185. [INSTR_RI_RU] = { 0x0f, R_8,U16_16,0,0,0,0 }, /* e.g. tml */
  186. [INSTR_RI_UP] = { 0x0f, U4_8,J16_16,0,0,0,0 }, /* e.g. brc */
  187. [INSTR_RRE_00] = { 0xff, 0,0,0,0,0,0 }, /* e.g. palb */
  188. [INSTR_RRE_0R] = { 0xff, R_28,0,0,0,0,0 }, /* e.g. tb */
  189. [INSTR_RRE_AA] = { 0xff, A_24,A_28,0,0,0,0 }, /* e.g. cpya */
  190. [INSTR_RRE_AR] = { 0xff, A_24,R_28,0,0,0,0 }, /* e.g. sar */
  191. [INSTR_RRE_F0] = { 0xff, F_24,0,0,0,0,0 }, /* e.g. sqer */
  192. [INSTR_RRE_FF] = { 0xff, F_24,F_28,0,0,0,0 }, /* e.g. debr */
  193. [INSTR_RRE_R0] = { 0xff, R_24,0,0,0,0,0 }, /* e.g. ipm */
  194. [INSTR_RRE_RA] = { 0xff, R_24,A_28,0,0,0,0 }, /* e.g. ear */
  195. [INSTR_RRE_RF] = { 0xff, R_24,F_28,0,0,0,0 }, /* e.g. cefbr */
  196. [INSTR_RRE_RR] = { 0xff, R_24,R_28,0,0,0,0 }, /* e.g. lura */
  197. [INSTR_RRE_RR_OPT]= { 0xff, R_24,RO_28,0,0,0,0 }, /* efpc, sfpc */
  198. [INSTR_RRF_F0FF] = { 0xff, F_16,F_24,F_28,0,0,0 }, /* e.g. madbr */
  199. [INSTR_RRF_FUFF] = { 0xff, F_24,F_16,F_28,U4_20,0,0 },/* e.g. didbr */
  200. [INSTR_RRF_RURR] = { 0xff, R_24,R_28,R_16,U4_20,0,0 },/* e.g. .insn */
  201. [INSTR_RRF_R0RR] = { 0xff, R_24,R_16,R_28,0,0,0 }, /* e.g. idte */
  202. [INSTR_RRF_U0FF] = { 0xff, F_24,U4_16,F_28,0,0,0 }, /* e.g. fixr */
  203. [INSTR_RRF_U0RF] = { 0xff, R_24,U4_16,F_28,0,0,0 }, /* e.g. cfebr */
  204. [INSTR_RRF_M0RR] = { 0xff, R_24,R_28,M_16,0,0,0 }, /* e.g. sske */
  205. [INSTR_RR_FF] = { 0xff, F_8,F_12,0,0,0,0 }, /* e.g. adr */
  206. [INSTR_RR_R0] = { 0xff, R_8, 0,0,0,0,0 }, /* e.g. spm */
  207. [INSTR_RR_RR] = { 0xff, R_8,R_12,0,0,0,0 }, /* e.g. lr */
  208. [INSTR_RR_U0] = { 0xff, U8_8, 0,0,0,0,0 }, /* e.g. svc */
  209. [INSTR_RR_UR] = { 0xff, U4_8,R_12,0,0,0,0 }, /* e.g. bcr */
  210. [INSTR_RSE_RRRD] = { 0xff, R_8,R_12,D_20,B_16,0,0 }, /* e.g. lmh */
  211. [INSTR_RSE_CCRD] = { 0xff, C_8,C_12,D_20,B_16,0,0 }, /* e.g. lmh */
  212. [INSTR_RSE_RURD] = { 0xff, R_8,U4_12,D_20,B_16,0,0 }, /* e.g. icmh */
  213. [INSTR_RSL_R0RD] = { 0xff, R_8,D_20,B_16,0,0,0 }, /* e.g. tp */
  214. [INSTR_RSI_RRP] = { 0xff, R_8,R_12,J16_16,0,0,0 }, /* e.g. brxh */
  215. [INSTR_RSY_RRRD] = { 0xff, R_8,R_12,D20_20,B_16,0,0 },/* e.g. stmy */
  216. [INSTR_RSY_RURD] = { 0xff, R_8,U4_12,D20_20,B_16,0,0 },
  217. /* e.g. icmh */
  218. [INSTR_RSY_AARD] = { 0xff, A_8,A_12,D20_20,B_16,0,0 },/* e.g. lamy */
  219. [INSTR_RSY_CCRD] = { 0xff, C_8,C_12,D20_20,B_16,0,0 },/* e.g. lamy */
  220. [INSTR_RS_AARD] = { 0xff, A_8,A_12,D_20,B_16,0,0 }, /* e.g. lam */
  221. [INSTR_RS_CCRD] = { 0xff, C_8,C_12,D_20,B_16,0,0 }, /* e.g. lctl */
  222. [INSTR_RS_R0RD] = { 0xff, R_8,D_20,B_16,0,0,0 }, /* e.g. sll */
  223. [INSTR_RS_RRRD] = { 0xff, R_8,R_12,D_20,B_16,0,0 }, /* e.g. cs */
  224. [INSTR_RS_RURD] = { 0xff, R_8,U4_12,D_20,B_16,0,0 }, /* e.g. icm */
  225. [INSTR_RXE_FRRD] = { 0xff, F_8,D_20,X_12,B_16,0,0 }, /* e.g. axbr */
  226. [INSTR_RXE_RRRD] = { 0xff, R_8,D_20,X_12,B_16,0,0 }, /* e.g. lg */
  227. [INSTR_RXF_FRRDF] = { 0xff, F_32,F_8,D_20,X_12,B_16,0 },
  228. /* e.g. madb */
  229. [INSTR_RXY_RRRD] = { 0xff, R_8,D20_20,X_12,B_16,0,0 },/* e.g. ly */
  230. [INSTR_RXY_FRRD] = { 0xff, F_8,D20_20,X_12,B_16,0,0 },/* e.g. ley */
  231. [INSTR_RX_FRRD] = { 0xff, F_8,D_20,X_12,B_16,0,0 }, /* e.g. ae */
  232. [INSTR_RX_RRRD] = { 0xff, R_8,D_20,X_12,B_16,0,0 }, /* e.g. l */
  233. [INSTR_RX_URRD] = { 0xff, U4_8,D_20,X_12,B_16,0,0 }, /* e.g. bc */
  234. [INSTR_SI_URD] = { 0xff, D_20,B_16,U8_8,0,0,0 }, /* e.g. cli */
  235. [INSTR_SIY_URD] = { 0xff, D20_20,B_16,U8_8,0,0,0 }, /* e.g. tmy */
  236. [INSTR_SSE_RDRD] = { 0xff, D_20,B_16,D_36,B_32,0,0 }, /* e.g. mvsdk */
  237. [INSTR_SS_L0RDRD] = { 0xff, D_20,L8_8,B_16,D_36,B_32,0 },
  238. /* e.g. mvc */
  239. [INSTR_SS_LIRDRD] = { 0xff, D_20,L4_8,B_16,D_36,B_32,U4_12 },
  240. /* e.g. srp */
  241. [INSTR_SS_LLRDRD] = { 0xff, D_20,L4_8,B_16,D_36,L4_12,B_32 },
  242. /* e.g. pack */
  243. [INSTR_SS_RRRDRD] = { 0xff, D_20,R_8,B_16,D_36,B_32,R_12 },
  244. /* e.g. mvck */
  245. [INSTR_SS_RRRDRD2]= { 0xff, R_8,D_20,B_16,R_12,D_36,B_32 },
  246. /* e.g. plo */
  247. [INSTR_SS_RRRDRD3]= { 0xff, R_8,R_12,D_20,B_16,D_36,B_32 },
  248. /* e.g. lmd */
  249. [INSTR_S_00] = { 0xff, 0,0,0,0,0,0 }, /* e.g. hsch */
  250. [INSTR_S_RD] = { 0xff, D_20,B_16,0,0,0,0 }, /* e.g. lpsw */
  251. [INSTR_SSF_RRDRD] = { 0x00, D_20,B_16,D_36,B_32,R_8,0 },
  252. /* e.g. mvcos */
  253. };
  254. static struct insn opcode[] = {
  255. #ifdef CONFIG_64BIT
  256. { "lmd", 0xef, INSTR_SS_RRRDRD3 },
  257. #endif
  258. { "spm", 0x04, INSTR_RR_R0 },
  259. { "balr", 0x05, INSTR_RR_RR },
  260. { "bctr", 0x06, INSTR_RR_RR },
  261. { "bcr", 0x07, INSTR_RR_UR },
  262. { "svc", 0x0a, INSTR_RR_U0 },
  263. { "bsm", 0x0b, INSTR_RR_RR },
  264. { "bassm", 0x0c, INSTR_RR_RR },
  265. { "basr", 0x0d, INSTR_RR_RR },
  266. { "mvcl", 0x0e, INSTR_RR_RR },
  267. { "clcl", 0x0f, INSTR_RR_RR },
  268. { "lpr", 0x10, INSTR_RR_RR },
  269. { "lnr", 0x11, INSTR_RR_RR },
  270. { "ltr", 0x12, INSTR_RR_RR },
  271. { "lcr", 0x13, INSTR_RR_RR },
  272. { "nr", 0x14, INSTR_RR_RR },
  273. { "clr", 0x15, INSTR_RR_RR },
  274. { "or", 0x16, INSTR_RR_RR },
  275. { "xr", 0x17, INSTR_RR_RR },
  276. { "lr", 0x18, INSTR_RR_RR },
  277. { "cr", 0x19, INSTR_RR_RR },
  278. { "ar", 0x1a, INSTR_RR_RR },
  279. { "sr", 0x1b, INSTR_RR_RR },
  280. { "mr", 0x1c, INSTR_RR_RR },
  281. { "dr", 0x1d, INSTR_RR_RR },
  282. { "alr", 0x1e, INSTR_RR_RR },
  283. { "slr", 0x1f, INSTR_RR_RR },
  284. { "lpdr", 0x20, INSTR_RR_FF },
  285. { "lndr", 0x21, INSTR_RR_FF },
  286. { "ltdr", 0x22, INSTR_RR_FF },
  287. { "lcdr", 0x23, INSTR_RR_FF },
  288. { "hdr", 0x24, INSTR_RR_FF },
  289. { "ldxr", 0x25, INSTR_RR_FF },
  290. { "lrdr", 0x25, INSTR_RR_FF },
  291. { "mxr", 0x26, INSTR_RR_FF },
  292. { "mxdr", 0x27, INSTR_RR_FF },
  293. { "ldr", 0x28, INSTR_RR_FF },
  294. { "cdr", 0x29, INSTR_RR_FF },
  295. { "adr", 0x2a, INSTR_RR_FF },
  296. { "sdr", 0x2b, INSTR_RR_FF },
  297. { "mdr", 0x2c, INSTR_RR_FF },
  298. { "ddr", 0x2d, INSTR_RR_FF },
  299. { "awr", 0x2e, INSTR_RR_FF },
  300. { "swr", 0x2f, INSTR_RR_FF },
  301. { "lper", 0x30, INSTR_RR_FF },
  302. { "lner", 0x31, INSTR_RR_FF },
  303. { "lter", 0x32, INSTR_RR_FF },
  304. { "lcer", 0x33, INSTR_RR_FF },
  305. { "her", 0x34, INSTR_RR_FF },
  306. { "ledr", 0x35, INSTR_RR_FF },
  307. { "lrer", 0x35, INSTR_RR_FF },
  308. { "axr", 0x36, INSTR_RR_FF },
  309. { "sxr", 0x37, INSTR_RR_FF },
  310. { "ler", 0x38, INSTR_RR_FF },
  311. { "cer", 0x39, INSTR_RR_FF },
  312. { "aer", 0x3a, INSTR_RR_FF },
  313. { "ser", 0x3b, INSTR_RR_FF },
  314. { "mder", 0x3c, INSTR_RR_FF },
  315. { "mer", 0x3c, INSTR_RR_FF },
  316. { "der", 0x3d, INSTR_RR_FF },
  317. { "aur", 0x3e, INSTR_RR_FF },
  318. { "sur", 0x3f, INSTR_RR_FF },
  319. { "sth", 0x40, INSTR_RX_RRRD },
  320. { "la", 0x41, INSTR_RX_RRRD },
  321. { "stc", 0x42, INSTR_RX_RRRD },
  322. { "ic", 0x43, INSTR_RX_RRRD },
  323. { "ex", 0x44, INSTR_RX_RRRD },
  324. { "bal", 0x45, INSTR_RX_RRRD },
  325. { "bct", 0x46, INSTR_RX_RRRD },
  326. { "bc", 0x47, INSTR_RX_URRD },
  327. { "lh", 0x48, INSTR_RX_RRRD },
  328. { "ch", 0x49, INSTR_RX_RRRD },
  329. { "ah", 0x4a, INSTR_RX_RRRD },
  330. { "sh", 0x4b, INSTR_RX_RRRD },
  331. { "mh", 0x4c, INSTR_RX_RRRD },
  332. { "bas", 0x4d, INSTR_RX_RRRD },
  333. { "cvd", 0x4e, INSTR_RX_RRRD },
  334. { "cvb", 0x4f, INSTR_RX_RRRD },
  335. { "st", 0x50, INSTR_RX_RRRD },
  336. { "lae", 0x51, INSTR_RX_RRRD },
  337. { "n", 0x54, INSTR_RX_RRRD },
  338. { "cl", 0x55, INSTR_RX_RRRD },
  339. { "o", 0x56, INSTR_RX_RRRD },
  340. { "x", 0x57, INSTR_RX_RRRD },
  341. { "l", 0x58, INSTR_RX_RRRD },
  342. { "c", 0x59, INSTR_RX_RRRD },
  343. { "a", 0x5a, INSTR_RX_RRRD },
  344. { "s", 0x5b, INSTR_RX_RRRD },
  345. { "m", 0x5c, INSTR_RX_RRRD },
  346. { "d", 0x5d, INSTR_RX_RRRD },
  347. { "al", 0x5e, INSTR_RX_RRRD },
  348. { "sl", 0x5f, INSTR_RX_RRRD },
  349. { "std", 0x60, INSTR_RX_FRRD },
  350. { "mxd", 0x67, INSTR_RX_FRRD },
  351. { "ld", 0x68, INSTR_RX_FRRD },
  352. { "cd", 0x69, INSTR_RX_FRRD },
  353. { "ad", 0x6a, INSTR_RX_FRRD },
  354. { "sd", 0x6b, INSTR_RX_FRRD },
  355. { "md", 0x6c, INSTR_RX_FRRD },
  356. { "dd", 0x6d, INSTR_RX_FRRD },
  357. { "aw", 0x6e, INSTR_RX_FRRD },
  358. { "sw", 0x6f, INSTR_RX_FRRD },
  359. { "ste", 0x70, INSTR_RX_FRRD },
  360. { "ms", 0x71, INSTR_RX_RRRD },
  361. { "le", 0x78, INSTR_RX_FRRD },
  362. { "ce", 0x79, INSTR_RX_FRRD },
  363. { "ae", 0x7a, INSTR_RX_FRRD },
  364. { "se", 0x7b, INSTR_RX_FRRD },
  365. { "mde", 0x7c, INSTR_RX_FRRD },
  366. { "me", 0x7c, INSTR_RX_FRRD },
  367. { "de", 0x7d, INSTR_RX_FRRD },
  368. { "au", 0x7e, INSTR_RX_FRRD },
  369. { "su", 0x7f, INSTR_RX_FRRD },
  370. { "ssm", 0x80, INSTR_S_RD },
  371. { "lpsw", 0x82, INSTR_S_RD },
  372. { "diag", 0x83, INSTR_RS_RRRD },
  373. { "brxh", 0x84, INSTR_RSI_RRP },
  374. { "brxle", 0x85, INSTR_RSI_RRP },
  375. { "bxh", 0x86, INSTR_RS_RRRD },
  376. { "bxle", 0x87, INSTR_RS_RRRD },
  377. { "srl", 0x88, INSTR_RS_R0RD },
  378. { "sll", 0x89, INSTR_RS_R0RD },
  379. { "sra", 0x8a, INSTR_RS_R0RD },
  380. { "sla", 0x8b, INSTR_RS_R0RD },
  381. { "srdl", 0x8c, INSTR_RS_R0RD },
  382. { "sldl", 0x8d, INSTR_RS_R0RD },
  383. { "srda", 0x8e, INSTR_RS_R0RD },
  384. { "slda", 0x8f, INSTR_RS_R0RD },
  385. { "stm", 0x90, INSTR_RS_RRRD },
  386. { "tm", 0x91, INSTR_SI_URD },
  387. { "mvi", 0x92, INSTR_SI_URD },
  388. { "ts", 0x93, INSTR_S_RD },
  389. { "ni", 0x94, INSTR_SI_URD },
  390. { "cli", 0x95, INSTR_SI_URD },
  391. { "oi", 0x96, INSTR_SI_URD },
  392. { "xi", 0x97, INSTR_SI_URD },
  393. { "lm", 0x98, INSTR_RS_RRRD },
  394. { "trace", 0x99, INSTR_RS_RRRD },
  395. { "lam", 0x9a, INSTR_RS_AARD },
  396. { "stam", 0x9b, INSTR_RS_AARD },
  397. { "mvcle", 0xa8, INSTR_RS_RRRD },
  398. { "clcle", 0xa9, INSTR_RS_RRRD },
  399. { "stnsm", 0xac, INSTR_SI_URD },
  400. { "stosm", 0xad, INSTR_SI_URD },
  401. { "sigp", 0xae, INSTR_RS_RRRD },
  402. { "mc", 0xaf, INSTR_SI_URD },
  403. { "lra", 0xb1, INSTR_RX_RRRD },
  404. { "stctl", 0xb6, INSTR_RS_CCRD },
  405. { "lctl", 0xb7, INSTR_RS_CCRD },
  406. { "cs", 0xba, INSTR_RS_RRRD },
  407. { "cds", 0xbb, INSTR_RS_RRRD },
  408. { "clm", 0xbd, INSTR_RS_RURD },
  409. { "stcm", 0xbe, INSTR_RS_RURD },
  410. { "icm", 0xbf, INSTR_RS_RURD },
  411. { "mvn", 0xd1, INSTR_SS_L0RDRD },
  412. { "mvc", 0xd2, INSTR_SS_L0RDRD },
  413. { "mvz", 0xd3, INSTR_SS_L0RDRD },
  414. { "nc", 0xd4, INSTR_SS_L0RDRD },
  415. { "clc", 0xd5, INSTR_SS_L0RDRD },
  416. { "oc", 0xd6, INSTR_SS_L0RDRD },
  417. { "xc", 0xd7, INSTR_SS_L0RDRD },
  418. { "mvck", 0xd9, INSTR_SS_RRRDRD },
  419. { "mvcp", 0xda, INSTR_SS_RRRDRD },
  420. { "mvcs", 0xdb, INSTR_SS_RRRDRD },
  421. { "tr", 0xdc, INSTR_SS_L0RDRD },
  422. { "trt", 0xdd, INSTR_SS_L0RDRD },
  423. { "ed", 0xde, INSTR_SS_L0RDRD },
  424. { "edmk", 0xdf, INSTR_SS_L0RDRD },
  425. { "pku", 0xe1, INSTR_SS_L0RDRD },
  426. { "unpku", 0xe2, INSTR_SS_L0RDRD },
  427. { "mvcin", 0xe8, INSTR_SS_L0RDRD },
  428. { "pka", 0xe9, INSTR_SS_L0RDRD },
  429. { "unpka", 0xea, INSTR_SS_L0RDRD },
  430. { "plo", 0xee, INSTR_SS_RRRDRD2 },
  431. { "srp", 0xf0, INSTR_SS_LIRDRD },
  432. { "mvo", 0xf1, INSTR_SS_LLRDRD },
  433. { "pack", 0xf2, INSTR_SS_LLRDRD },
  434. { "unpk", 0xf3, INSTR_SS_LLRDRD },
  435. { "zap", 0xf8, INSTR_SS_LLRDRD },
  436. { "cp", 0xf9, INSTR_SS_LLRDRD },
  437. { "ap", 0xfa, INSTR_SS_LLRDRD },
  438. { "sp", 0xfb, INSTR_SS_LLRDRD },
  439. { "mp", 0xfc, INSTR_SS_LLRDRD },
  440. { "dp", 0xfd, INSTR_SS_LLRDRD },
  441. { "", 0, INSTR_INVALID }
  442. };
  443. static struct insn opcode_01[] = {
  444. #ifdef CONFIG_64BIT
  445. { "sam64", 0x0e, INSTR_E },
  446. #endif
  447. { "pr", 0x01, INSTR_E },
  448. { "upt", 0x02, INSTR_E },
  449. { "sckpf", 0x07, INSTR_E },
  450. { "tam", 0x0b, INSTR_E },
  451. { "sam24", 0x0c, INSTR_E },
  452. { "sam31", 0x0d, INSTR_E },
  453. { "trap2", 0xff, INSTR_E },
  454. { "", 0, INSTR_INVALID }
  455. };
  456. static struct insn opcode_a5[] = {
  457. #ifdef CONFIG_64BIT
  458. { "iihh", 0x00, INSTR_RI_RU },
  459. { "iihl", 0x01, INSTR_RI_RU },
  460. { "iilh", 0x02, INSTR_RI_RU },
  461. { "iill", 0x03, INSTR_RI_RU },
  462. { "nihh", 0x04, INSTR_RI_RU },
  463. { "nihl", 0x05, INSTR_RI_RU },
  464. { "nilh", 0x06, INSTR_RI_RU },
  465. { "nill", 0x07, INSTR_RI_RU },
  466. { "oihh", 0x08, INSTR_RI_RU },
  467. { "oihl", 0x09, INSTR_RI_RU },
  468. { "oilh", 0x0a, INSTR_RI_RU },
  469. { "oill", 0x0b, INSTR_RI_RU },
  470. { "llihh", 0x0c, INSTR_RI_RU },
  471. { "llihl", 0x0d, INSTR_RI_RU },
  472. { "llilh", 0x0e, INSTR_RI_RU },
  473. { "llill", 0x0f, INSTR_RI_RU },
  474. #endif
  475. { "", 0, INSTR_INVALID }
  476. };
  477. static struct insn opcode_a7[] = {
  478. #ifdef CONFIG_64BIT
  479. { "tmhh", 0x02, INSTR_RI_RU },
  480. { "tmhl", 0x03, INSTR_RI_RU },
  481. { "brctg", 0x07, INSTR_RI_RP },
  482. { "lghi", 0x09, INSTR_RI_RI },
  483. { "aghi", 0x0b, INSTR_RI_RI },
  484. { "mghi", 0x0d, INSTR_RI_RI },
  485. { "cghi", 0x0f, INSTR_RI_RI },
  486. #endif
  487. { "tmlh", 0x00, INSTR_RI_RU },
  488. { "tmll", 0x01, INSTR_RI_RU },
  489. { "brc", 0x04, INSTR_RI_UP },
  490. { "bras", 0x05, INSTR_RI_RP },
  491. { "brct", 0x06, INSTR_RI_RP },
  492. { "lhi", 0x08, INSTR_RI_RI },
  493. { "ahi", 0x0a, INSTR_RI_RI },
  494. { "mhi", 0x0c, INSTR_RI_RI },
  495. { "chi", 0x0e, INSTR_RI_RI },
  496. { "", 0, INSTR_INVALID }
  497. };
  498. static struct insn opcode_b2[] = {
  499. #ifdef CONFIG_64BIT
  500. { "sske", 0x2b, INSTR_RRF_M0RR },
  501. { "stckf", 0x7c, INSTR_S_RD },
  502. { "cu21", 0xa6, INSTR_RRF_M0RR },
  503. { "cuutf", 0xa6, INSTR_RRF_M0RR },
  504. { "cu12", 0xa7, INSTR_RRF_M0RR },
  505. { "cutfu", 0xa7, INSTR_RRF_M0RR },
  506. { "stfle", 0xb0, INSTR_S_RD },
  507. { "lpswe", 0xb2, INSTR_S_RD },
  508. #endif
  509. { "stidp", 0x02, INSTR_S_RD },
  510. { "sck", 0x04, INSTR_S_RD },
  511. { "stck", 0x05, INSTR_S_RD },
  512. { "sckc", 0x06, INSTR_S_RD },
  513. { "stckc", 0x07, INSTR_S_RD },
  514. { "spt", 0x08, INSTR_S_RD },
  515. { "stpt", 0x09, INSTR_S_RD },
  516. { "spka", 0x0a, INSTR_S_RD },
  517. { "ipk", 0x0b, INSTR_S_00 },
  518. { "ptlb", 0x0d, INSTR_S_00 },
  519. { "spx", 0x10, INSTR_S_RD },
  520. { "stpx", 0x11, INSTR_S_RD },
  521. { "stap", 0x12, INSTR_S_RD },
  522. { "sie", 0x14, INSTR_S_RD },
  523. { "pc", 0x18, INSTR_S_RD },
  524. { "sac", 0x19, INSTR_S_RD },
  525. { "cfc", 0x1a, INSTR_S_RD },
  526. { "ipte", 0x21, INSTR_RRE_RR },
  527. { "ipm", 0x22, INSTR_RRE_R0 },
  528. { "ivsk", 0x23, INSTR_RRE_RR },
  529. { "iac", 0x24, INSTR_RRE_R0 },
  530. { "ssar", 0x25, INSTR_RRE_R0 },
  531. { "epar", 0x26, INSTR_RRE_R0 },
  532. { "esar", 0x27, INSTR_RRE_R0 },
  533. { "pt", 0x28, INSTR_RRE_RR },
  534. { "iske", 0x29, INSTR_RRE_RR },
  535. { "rrbe", 0x2a, INSTR_RRE_RR },
  536. { "sske", 0x2b, INSTR_RRE_RR },
  537. { "tb", 0x2c, INSTR_RRE_0R },
  538. { "dxr", 0x2d, INSTR_RRE_F0 },
  539. { "pgin", 0x2e, INSTR_RRE_RR },
  540. { "pgout", 0x2f, INSTR_RRE_RR },
  541. { "csch", 0x30, INSTR_S_00 },
  542. { "hsch", 0x31, INSTR_S_00 },
  543. { "msch", 0x32, INSTR_S_RD },
  544. { "ssch", 0x33, INSTR_S_RD },
  545. { "stsch", 0x34, INSTR_S_RD },
  546. { "tsch", 0x35, INSTR_S_RD },
  547. { "tpi", 0x36, INSTR_S_RD },
  548. { "sal", 0x37, INSTR_S_00 },
  549. { "rsch", 0x38, INSTR_S_00 },
  550. { "stcrw", 0x39, INSTR_S_RD },
  551. { "stcps", 0x3a, INSTR_S_RD },
  552. { "rchp", 0x3b, INSTR_S_00 },
  553. { "schm", 0x3c, INSTR_S_00 },
  554. { "bakr", 0x40, INSTR_RRE_RR },
  555. { "cksm", 0x41, INSTR_RRE_RR },
  556. { "sqdr", 0x44, INSTR_RRE_F0 },
  557. { "sqer", 0x45, INSTR_RRE_F0 },
  558. { "stura", 0x46, INSTR_RRE_RR },
  559. { "msta", 0x47, INSTR_RRE_R0 },
  560. { "palb", 0x48, INSTR_RRE_00 },
  561. { "ereg", 0x49, INSTR_RRE_RR },
  562. { "esta", 0x4a, INSTR_RRE_RR },
  563. { "lura", 0x4b, INSTR_RRE_RR },
  564. { "tar", 0x4c, INSTR_RRE_AR },
  565. { "cpya", 0x4d, INSTR_RRE_AA },
  566. { "sar", 0x4e, INSTR_RRE_AR },
  567. { "ear", 0x4f, INSTR_RRE_RA },
  568. { "csp", 0x50, INSTR_RRE_RR },
  569. { "msr", 0x52, INSTR_RRE_RR },
  570. { "mvpg", 0x54, INSTR_RRE_RR },
  571. { "mvst", 0x55, INSTR_RRE_RR },
  572. { "cuse", 0x57, INSTR_RRE_RR },
  573. { "bsg", 0x58, INSTR_RRE_RR },
  574. { "bsa", 0x5a, INSTR_RRE_RR },
  575. { "clst", 0x5d, INSTR_RRE_RR },
  576. { "srst", 0x5e, INSTR_RRE_RR },
  577. { "cmpsc", 0x63, INSTR_RRE_RR },
  578. { "cmpsc", 0x63, INSTR_RRE_RR },
  579. { "siga", 0x74, INSTR_S_RD },
  580. { "xsch", 0x76, INSTR_S_00 },
  581. { "rp", 0x77, INSTR_S_RD },
  582. { "stcke", 0x78, INSTR_S_RD },
  583. { "sacf", 0x79, INSTR_S_RD },
  584. { "stsi", 0x7d, INSTR_S_RD },
  585. { "srnm", 0x99, INSTR_S_RD },
  586. { "stfpc", 0x9c, INSTR_S_RD },
  587. { "lfpc", 0x9d, INSTR_S_RD },
  588. { "tre", 0xa5, INSTR_RRE_RR },
  589. { "cuutf", 0xa6, INSTR_RRE_RR },
  590. { "cutfu", 0xa7, INSTR_RRE_RR },
  591. { "stfl", 0xb1, INSTR_S_RD },
  592. { "trap4", 0xff, INSTR_S_RD },
  593. { "", 0, INSTR_INVALID }
  594. };
  595. static struct insn opcode_b3[] = {
  596. #ifdef CONFIG_64BIT
  597. { "maylr", 0x38, INSTR_RRF_F0FF },
  598. { "mylr", 0x39, INSTR_RRF_F0FF },
  599. { "mayr", 0x3a, INSTR_RRF_F0FF },
  600. { "myr", 0x3b, INSTR_RRF_F0FF },
  601. { "mayhr", 0x3c, INSTR_RRF_F0FF },
  602. { "myhr", 0x3d, INSTR_RRF_F0FF },
  603. { "cegbr", 0xa4, INSTR_RRE_RR },
  604. { "cdgbr", 0xa5, INSTR_RRE_RR },
  605. { "cxgbr", 0xa6, INSTR_RRE_RR },
  606. { "cgebr", 0xa8, INSTR_RRF_U0RF },
  607. { "cgdbr", 0xa9, INSTR_RRF_U0RF },
  608. { "cgxbr", 0xaa, INSTR_RRF_U0RF },
  609. { "cfer", 0xb8, INSTR_RRF_U0RF },
  610. { "cfdr", 0xb9, INSTR_RRF_U0RF },
  611. { "cfxr", 0xba, INSTR_RRF_U0RF },
  612. { "cegr", 0xc4, INSTR_RRE_RR },
  613. { "cdgr", 0xc5, INSTR_RRE_RR },
  614. { "cxgr", 0xc6, INSTR_RRE_RR },
  615. { "cger", 0xc8, INSTR_RRF_U0RF },
  616. { "cgdr", 0xc9, INSTR_RRF_U0RF },
  617. { "cgxr", 0xca, INSTR_RRF_U0RF },
  618. #endif
  619. { "lpebr", 0x00, INSTR_RRE_FF },
  620. { "lnebr", 0x01, INSTR_RRE_FF },
  621. { "ltebr", 0x02, INSTR_RRE_FF },
  622. { "lcebr", 0x03, INSTR_RRE_FF },
  623. { "ldebr", 0x04, INSTR_RRE_FF },
  624. { "lxdbr", 0x05, INSTR_RRE_FF },
  625. { "lxebr", 0x06, INSTR_RRE_FF },
  626. { "mxdbr", 0x07, INSTR_RRE_FF },
  627. { "kebr", 0x08, INSTR_RRE_FF },
  628. { "cebr", 0x09, INSTR_RRE_FF },
  629. { "aebr", 0x0a, INSTR_RRE_FF },
  630. { "sebr", 0x0b, INSTR_RRE_FF },
  631. { "mdebr", 0x0c, INSTR_RRE_FF },
  632. { "debr", 0x0d, INSTR_RRE_FF },
  633. { "maebr", 0x0e, INSTR_RRF_F0FF },
  634. { "msebr", 0x0f, INSTR_RRF_F0FF },
  635. { "lpdbr", 0x10, INSTR_RRE_FF },
  636. { "lndbr", 0x11, INSTR_RRE_FF },
  637. { "ltdbr", 0x12, INSTR_RRE_FF },
  638. { "lcdbr", 0x13, INSTR_RRE_FF },
  639. { "sqebr", 0x14, INSTR_RRE_FF },
  640. { "sqdbr", 0x15, INSTR_RRE_FF },
  641. { "sqxbr", 0x16, INSTR_RRE_FF },
  642. { "meebr", 0x17, INSTR_RRE_FF },
  643. { "kdbr", 0x18, INSTR_RRE_FF },
  644. { "cdbr", 0x19, INSTR_RRE_FF },
  645. { "adbr", 0x1a, INSTR_RRE_FF },
  646. { "sdbr", 0x1b, INSTR_RRE_FF },
  647. { "mdbr", 0x1c, INSTR_RRE_FF },
  648. { "ddbr", 0x1d, INSTR_RRE_FF },
  649. { "madbr", 0x1e, INSTR_RRF_F0FF },
  650. { "msdbr", 0x1f, INSTR_RRF_F0FF },
  651. { "lder", 0x24, INSTR_RRE_FF },
  652. { "lxdr", 0x25, INSTR_RRE_FF },
  653. { "lxer", 0x26, INSTR_RRE_FF },
  654. { "maer", 0x2e, INSTR_RRF_F0FF },
  655. { "mser", 0x2f, INSTR_RRF_F0FF },
  656. { "sqxr", 0x36, INSTR_RRE_FF },
  657. { "meer", 0x37, INSTR_RRE_FF },
  658. { "madr", 0x3e, INSTR_RRF_F0FF },
  659. { "msdr", 0x3f, INSTR_RRF_F0FF },
  660. { "lpxbr", 0x40, INSTR_RRE_FF },
  661. { "lnxbr", 0x41, INSTR_RRE_FF },
  662. { "ltxbr", 0x42, INSTR_RRE_FF },
  663. { "lcxbr", 0x43, INSTR_RRE_FF },
  664. { "ledbr", 0x44, INSTR_RRE_FF },
  665. { "ldxbr", 0x45, INSTR_RRE_FF },
  666. { "lexbr", 0x46, INSTR_RRE_FF },
  667. { "fixbr", 0x47, INSTR_RRF_U0FF },
  668. { "kxbr", 0x48, INSTR_RRE_FF },
  669. { "cxbr", 0x49, INSTR_RRE_FF },
  670. { "axbr", 0x4a, INSTR_RRE_FF },
  671. { "sxbr", 0x4b, INSTR_RRE_FF },
  672. { "mxbr", 0x4c, INSTR_RRE_FF },
  673. { "dxbr", 0x4d, INSTR_RRE_FF },
  674. { "tbedr", 0x50, INSTR_RRF_U0FF },
  675. { "tbdr", 0x51, INSTR_RRF_U0FF },
  676. { "diebr", 0x53, INSTR_RRF_FUFF },
  677. { "fiebr", 0x57, INSTR_RRF_U0FF },
  678. { "thder", 0x58, INSTR_RRE_RR },
  679. { "thdr", 0x59, INSTR_RRE_RR },
  680. { "didbr", 0x5b, INSTR_RRF_FUFF },
  681. { "fidbr", 0x5f, INSTR_RRF_U0FF },
  682. { "lpxr", 0x60, INSTR_RRE_FF },
  683. { "lnxr", 0x61, INSTR_RRE_FF },
  684. { "ltxr", 0x62, INSTR_RRE_FF },
  685. { "lcxr", 0x63, INSTR_RRE_FF },
  686. { "lxr", 0x65, INSTR_RRE_RR },
  687. { "lexr", 0x66, INSTR_RRE_FF },
  688. { "fixr", 0x67, INSTR_RRF_U0FF },
  689. { "cxr", 0x69, INSTR_RRE_FF },
  690. { "lzer", 0x74, INSTR_RRE_R0 },
  691. { "lzdr", 0x75, INSTR_RRE_R0 },
  692. { "lzxr", 0x76, INSTR_RRE_R0 },
  693. { "fier", 0x77, INSTR_RRF_U0FF },
  694. { "fidr", 0x7f, INSTR_RRF_U0FF },
  695. { "sfpc", 0x84, INSTR_RRE_RR_OPT },
  696. { "efpc", 0x8c, INSTR_RRE_RR_OPT },
  697. { "cefbr", 0x94, INSTR_RRE_RF },
  698. { "cdfbr", 0x95, INSTR_RRE_RF },
  699. { "cxfbr", 0x96, INSTR_RRE_RF },
  700. { "cfebr", 0x98, INSTR_RRF_U0RF },
  701. { "cfdbr", 0x99, INSTR_RRF_U0RF },
  702. { "cfxbr", 0x9a, INSTR_RRF_U0RF },
  703. { "cefr", 0xb4, INSTR_RRE_RF },
  704. { "cdfr", 0xb5, INSTR_RRE_RF },
  705. { "cxfr", 0xb6, INSTR_RRE_RF },
  706. { "", 0, INSTR_INVALID }
  707. };
  708. static struct insn opcode_b9[] = {
  709. #ifdef CONFIG_64BIT
  710. { "lpgr", 0x00, INSTR_RRE_RR },
  711. { "lngr", 0x01, INSTR_RRE_RR },
  712. { "ltgr", 0x02, INSTR_RRE_RR },
  713. { "lcgr", 0x03, INSTR_RRE_RR },
  714. { "lgr", 0x04, INSTR_RRE_RR },
  715. { "lurag", 0x05, INSTR_RRE_RR },
  716. { "lgbr", 0x06, INSTR_RRE_RR },
  717. { "lghr", 0x07, INSTR_RRE_RR },
  718. { "agr", 0x08, INSTR_RRE_RR },
  719. { "sgr", 0x09, INSTR_RRE_RR },
  720. { "algr", 0x0a, INSTR_RRE_RR },
  721. { "slgr", 0x0b, INSTR_RRE_RR },
  722. { "msgr", 0x0c, INSTR_RRE_RR },
  723. { "dsgr", 0x0d, INSTR_RRE_RR },
  724. { "eregg", 0x0e, INSTR_RRE_RR },
  725. { "lrvgr", 0x0f, INSTR_RRE_RR },
  726. { "lpgfr", 0x10, INSTR_RRE_RR },
  727. { "lngfr", 0x11, INSTR_RRE_RR },
  728. { "ltgfr", 0x12, INSTR_RRE_RR },
  729. { "lcgfr", 0x13, INSTR_RRE_RR },
  730. { "lgfr", 0x14, INSTR_RRE_RR },
  731. { "llgfr", 0x16, INSTR_RRE_RR },
  732. { "llgtr", 0x17, INSTR_RRE_RR },
  733. { "agfr", 0x18, INSTR_RRE_RR },
  734. { "sgfr", 0x19, INSTR_RRE_RR },
  735. { "algfr", 0x1a, INSTR_RRE_RR },
  736. { "slgfr", 0x1b, INSTR_RRE_RR },
  737. { "msgfr", 0x1c, INSTR_RRE_RR },
  738. { "dsgfr", 0x1d, INSTR_RRE_RR },
  739. { "cgr", 0x20, INSTR_RRE_RR },
  740. { "clgr", 0x21, INSTR_RRE_RR },
  741. { "sturg", 0x25, INSTR_RRE_RR },
  742. { "lbr", 0x26, INSTR_RRE_RR },
  743. { "lhr", 0x27, INSTR_RRE_RR },
  744. { "cgfr", 0x30, INSTR_RRE_RR },
  745. { "clgfr", 0x31, INSTR_RRE_RR },
  746. { "bctgr", 0x46, INSTR_RRE_RR },
  747. { "ngr", 0x80, INSTR_RRE_RR },
  748. { "ogr", 0x81, INSTR_RRE_RR },
  749. { "xgr", 0x82, INSTR_RRE_RR },
  750. { "flogr", 0x83, INSTR_RRE_RR },
  751. { "llgcr", 0x84, INSTR_RRE_RR },
  752. { "llghr", 0x85, INSTR_RRE_RR },
  753. { "mlgr", 0x86, INSTR_RRE_RR },
  754. { "dlgr", 0x87, INSTR_RRE_RR },
  755. { "alcgr", 0x88, INSTR_RRE_RR },
  756. { "slbgr", 0x89, INSTR_RRE_RR },
  757. { "cspg", 0x8a, INSTR_RRE_RR },
  758. { "idte", 0x8e, INSTR_RRF_R0RR },
  759. { "llcr", 0x94, INSTR_RRE_RR },
  760. { "llhr", 0x95, INSTR_RRE_RR },
  761. { "esea", 0x9d, INSTR_RRE_R0 },
  762. { "lptea", 0xaa, INSTR_RRF_RURR },
  763. { "cu14", 0xb0, INSTR_RRF_M0RR },
  764. { "cu24", 0xb1, INSTR_RRF_M0RR },
  765. { "cu41", 0xb2, INSTR_RRF_M0RR },
  766. { "cu42", 0xb3, INSTR_RRF_M0RR },
  767. #endif
  768. { "kmac", 0x1e, INSTR_RRE_RR },
  769. { "lrvr", 0x1f, INSTR_RRE_RR },
  770. { "km", 0x2e, INSTR_RRE_RR },
  771. { "kmc", 0x2f, INSTR_RRE_RR },
  772. { "kimd", 0x3e, INSTR_RRE_RR },
  773. { "klmd", 0x3f, INSTR_RRE_RR },
  774. { "epsw", 0x8d, INSTR_RRE_RR },
  775. { "trtt", 0x90, INSTR_RRE_RR },
  776. { "trtt", 0x90, INSTR_RRF_M0RR },
  777. { "trto", 0x91, INSTR_RRE_RR },
  778. { "trto", 0x91, INSTR_RRF_M0RR },
  779. { "trot", 0x92, INSTR_RRE_RR },
  780. { "trot", 0x92, INSTR_RRF_M0RR },
  781. { "troo", 0x93, INSTR_RRE_RR },
  782. { "troo", 0x93, INSTR_RRF_M0RR },
  783. { "mlr", 0x96, INSTR_RRE_RR },
  784. { "dlr", 0x97, INSTR_RRE_RR },
  785. { "alcr", 0x98, INSTR_RRE_RR },
  786. { "slbr", 0x99, INSTR_RRE_RR },
  787. { "", 0, INSTR_INVALID }
  788. };
  789. static struct insn opcode_c0[] = {
  790. #ifdef CONFIG_64BIT
  791. { "lgfi", 0x01, INSTR_RIL_RI },
  792. { "xihf", 0x06, INSTR_RIL_RU },
  793. { "xilf", 0x07, INSTR_RIL_RU },
  794. { "iihf", 0x08, INSTR_RIL_RU },
  795. { "iilf", 0x09, INSTR_RIL_RU },
  796. { "nihf", 0x0a, INSTR_RIL_RU },
  797. { "nilf", 0x0b, INSTR_RIL_RU },
  798. { "oihf", 0x0c, INSTR_RIL_RU },
  799. { "oilf", 0x0d, INSTR_RIL_RU },
  800. { "llihf", 0x0e, INSTR_RIL_RU },
  801. { "llilf", 0x0f, INSTR_RIL_RU },
  802. #endif
  803. { "larl", 0x00, INSTR_RIL_RP },
  804. { "brcl", 0x04, INSTR_RIL_UP },
  805. { "brasl", 0x05, INSTR_RIL_RP },
  806. { "", 0, INSTR_INVALID }
  807. };
  808. static struct insn opcode_c2[] = {
  809. #ifdef CONFIG_64BIT
  810. { "slgfi", 0x04, INSTR_RIL_RU },
  811. { "slfi", 0x05, INSTR_RIL_RU },
  812. { "agfi", 0x08, INSTR_RIL_RI },
  813. { "afi", 0x09, INSTR_RIL_RI },
  814. { "algfi", 0x0a, INSTR_RIL_RU },
  815. { "alfi", 0x0b, INSTR_RIL_RU },
  816. { "cgfi", 0x0c, INSTR_RIL_RI },
  817. { "cfi", 0x0d, INSTR_RIL_RI },
  818. { "clgfi", 0x0e, INSTR_RIL_RU },
  819. { "clfi", 0x0f, INSTR_RIL_RU },
  820. #endif
  821. { "", 0, INSTR_INVALID }
  822. };
  823. static struct insn opcode_c8[] = {
  824. #ifdef CONFIG_64BIT
  825. { "mvcos", 0x00, INSTR_SSF_RRDRD },
  826. #endif
  827. { "", 0, INSTR_INVALID }
  828. };
  829. static struct insn opcode_e3[] = {
  830. #ifdef CONFIG_64BIT
  831. { "ltg", 0x02, INSTR_RXY_RRRD },
  832. { "lrag", 0x03, INSTR_RXY_RRRD },
  833. { "lg", 0x04, INSTR_RXY_RRRD },
  834. { "cvby", 0x06, INSTR_RXY_RRRD },
  835. { "ag", 0x08, INSTR_RXY_RRRD },
  836. { "sg", 0x09, INSTR_RXY_RRRD },
  837. { "alg", 0x0a, INSTR_RXY_RRRD },
  838. { "slg", 0x0b, INSTR_RXY_RRRD },
  839. { "msg", 0x0c, INSTR_RXY_RRRD },
  840. { "dsg", 0x0d, INSTR_RXY_RRRD },
  841. { "cvbg", 0x0e, INSTR_RXY_RRRD },
  842. { "lrvg", 0x0f, INSTR_RXY_RRRD },
  843. { "lt", 0x12, INSTR_RXY_RRRD },
  844. { "lray", 0x13, INSTR_RXY_RRRD },
  845. { "lgf", 0x14, INSTR_RXY_RRRD },
  846. { "lgh", 0x15, INSTR_RXY_RRRD },
  847. { "llgf", 0x16, INSTR_RXY_RRRD },
  848. { "llgt", 0x17, INSTR_RXY_RRRD },
  849. { "agf", 0x18, INSTR_RXY_RRRD },
  850. { "sgf", 0x19, INSTR_RXY_RRRD },
  851. { "algf", 0x1a, INSTR_RXY_RRRD },
  852. { "slgf", 0x1b, INSTR_RXY_RRRD },
  853. { "msgf", 0x1c, INSTR_RXY_RRRD },
  854. { "dsgf", 0x1d, INSTR_RXY_RRRD },
  855. { "cg", 0x20, INSTR_RXY_RRRD },
  856. { "clg", 0x21, INSTR_RXY_RRRD },
  857. { "stg", 0x24, INSTR_RXY_RRRD },
  858. { "cvdy", 0x26, INSTR_RXY_RRRD },
  859. { "cvdg", 0x2e, INSTR_RXY_RRRD },
  860. { "strvg", 0x2f, INSTR_RXY_RRRD },
  861. { "cgf", 0x30, INSTR_RXY_RRRD },
  862. { "clgf", 0x31, INSTR_RXY_RRRD },
  863. { "strvh", 0x3f, INSTR_RXY_RRRD },
  864. { "bctg", 0x46, INSTR_RXY_RRRD },
  865. { "sty", 0x50, INSTR_RXY_RRRD },
  866. { "msy", 0x51, INSTR_RXY_RRRD },
  867. { "ny", 0x54, INSTR_RXY_RRRD },
  868. { "cly", 0x55, INSTR_RXY_RRRD },
  869. { "oy", 0x56, INSTR_RXY_RRRD },
  870. { "xy", 0x57, INSTR_RXY_RRRD },
  871. { "ly", 0x58, INSTR_RXY_RRRD },
  872. { "cy", 0x59, INSTR_RXY_RRRD },
  873. { "ay", 0x5a, INSTR_RXY_RRRD },
  874. { "sy", 0x5b, INSTR_RXY_RRRD },
  875. { "aly", 0x5e, INSTR_RXY_RRRD },
  876. { "sly", 0x5f, INSTR_RXY_RRRD },
  877. { "sthy", 0x70, INSTR_RXY_RRRD },
  878. { "lay", 0x71, INSTR_RXY_RRRD },
  879. { "stcy", 0x72, INSTR_RXY_RRRD },
  880. { "icy", 0x73, INSTR_RXY_RRRD },
  881. { "lb", 0x76, INSTR_RXY_RRRD },
  882. { "lgb", 0x77, INSTR_RXY_RRRD },
  883. { "lhy", 0x78, INSTR_RXY_RRRD },
  884. { "chy", 0x79, INSTR_RXY_RRRD },
  885. { "ahy", 0x7a, INSTR_RXY_RRRD },
  886. { "shy", 0x7b, INSTR_RXY_RRRD },
  887. { "ng", 0x80, INSTR_RXY_RRRD },
  888. { "og", 0x81, INSTR_RXY_RRRD },
  889. { "xg", 0x82, INSTR_RXY_RRRD },
  890. { "mlg", 0x86, INSTR_RXY_RRRD },
  891. { "dlg", 0x87, INSTR_RXY_RRRD },
  892. { "alcg", 0x88, INSTR_RXY_RRRD },
  893. { "slbg", 0x89, INSTR_RXY_RRRD },
  894. { "stpq", 0x8e, INSTR_RXY_RRRD },
  895. { "lpq", 0x8f, INSTR_RXY_RRRD },
  896. { "llgc", 0x90, INSTR_RXY_RRRD },
  897. { "llgh", 0x91, INSTR_RXY_RRRD },
  898. { "llc", 0x94, INSTR_RXY_RRRD },
  899. { "llh", 0x95, INSTR_RXY_RRRD },
  900. #endif
  901. { "lrv", 0x1e, INSTR_RXY_RRRD },
  902. { "lrvh", 0x1f, INSTR_RXY_RRRD },
  903. { "strv", 0x3e, INSTR_RXY_RRRD },
  904. { "ml", 0x96, INSTR_RXY_RRRD },
  905. { "dl", 0x97, INSTR_RXY_RRRD },
  906. { "alc", 0x98, INSTR_RXY_RRRD },
  907. { "slb", 0x99, INSTR_RXY_RRRD },
  908. { "", 0, INSTR_INVALID }
  909. };
  910. static struct insn opcode_e5[] = {
  911. #ifdef CONFIG_64BIT
  912. { "strag", 0x02, INSTR_SSE_RDRD },
  913. #endif
  914. { "lasp", 0x00, INSTR_SSE_RDRD },
  915. { "tprot", 0x01, INSTR_SSE_RDRD },
  916. { "mvcsk", 0x0e, INSTR_SSE_RDRD },
  917. { "mvcdk", 0x0f, INSTR_SSE_RDRD },
  918. { "", 0, INSTR_INVALID }
  919. };
  920. static struct insn opcode_eb[] = {
  921. #ifdef CONFIG_64BIT
  922. { "lmg", 0x04, INSTR_RSY_RRRD },
  923. { "srag", 0x0a, INSTR_RSY_RRRD },
  924. { "slag", 0x0b, INSTR_RSY_RRRD },
  925. { "srlg", 0x0c, INSTR_RSY_RRRD },
  926. { "sllg", 0x0d, INSTR_RSY_RRRD },
  927. { "tracg", 0x0f, INSTR_RSY_RRRD },
  928. { "csy", 0x14, INSTR_RSY_RRRD },
  929. { "rllg", 0x1c, INSTR_RSY_RRRD },
  930. { "clmh", 0x20, INSTR_RSY_RURD },
  931. { "clmy", 0x21, INSTR_RSY_RURD },
  932. { "stmg", 0x24, INSTR_RSY_RRRD },
  933. { "stctg", 0x25, INSTR_RSY_CCRD },
  934. { "stmh", 0x26, INSTR_RSY_RRRD },
  935. { "stcmh", 0x2c, INSTR_RSY_RURD },
  936. { "stcmy", 0x2d, INSTR_RSY_RURD },
  937. { "lctlg", 0x2f, INSTR_RSY_CCRD },
  938. { "csg", 0x30, INSTR_RSY_RRRD },
  939. { "cdsy", 0x31, INSTR_RSY_RRRD },
  940. { "cdsg", 0x3e, INSTR_RSY_RRRD },
  941. { "bxhg", 0x44, INSTR_RSY_RRRD },
  942. { "bxleg", 0x45, INSTR_RSY_RRRD },
  943. { "tmy", 0x51, INSTR_SIY_URD },
  944. { "mviy", 0x52, INSTR_SIY_URD },
  945. { "niy", 0x54, INSTR_SIY_URD },
  946. { "cliy", 0x55, INSTR_SIY_URD },
  947. { "oiy", 0x56, INSTR_SIY_URD },
  948. { "xiy", 0x57, INSTR_SIY_URD },
  949. { "icmh", 0x80, INSTR_RSE_RURD },
  950. { "icmh", 0x80, INSTR_RSY_RURD },
  951. { "icmy", 0x81, INSTR_RSY_RURD },
  952. { "clclu", 0x8f, INSTR_RSY_RRRD },
  953. { "stmy", 0x90, INSTR_RSY_RRRD },
  954. { "lmh", 0x96, INSTR_RSY_RRRD },
  955. { "lmy", 0x98, INSTR_RSY_RRRD },
  956. { "lamy", 0x9a, INSTR_RSY_AARD },
  957. { "stamy", 0x9b, INSTR_RSY_AARD },
  958. #endif
  959. { "rll", 0x1d, INSTR_RSY_RRRD },
  960. { "mvclu", 0x8e, INSTR_RSY_RRRD },
  961. { "tp", 0xc0, INSTR_RSL_R0RD },
  962. { "", 0, INSTR_INVALID }
  963. };
  964. static struct insn opcode_ec[] = {
  965. #ifdef CONFIG_64BIT
  966. { "brxhg", 0x44, INSTR_RIE_RRP },
  967. { "brxlg", 0x45, INSTR_RIE_RRP },
  968. #endif
  969. { "", 0, INSTR_INVALID }
  970. };
  971. static struct insn opcode_ed[] = {
  972. #ifdef CONFIG_64BIT
  973. { "mayl", 0x38, INSTR_RXF_FRRDF },
  974. { "myl", 0x39, INSTR_RXF_FRRDF },
  975. { "may", 0x3a, INSTR_RXF_FRRDF },
  976. { "my", 0x3b, INSTR_RXF_FRRDF },
  977. { "mayh", 0x3c, INSTR_RXF_FRRDF },
  978. { "myh", 0x3d, INSTR_RXF_FRRDF },
  979. { "ley", 0x64, INSTR_RXY_FRRD },
  980. { "ldy", 0x65, INSTR_RXY_FRRD },
  981. { "stey", 0x66, INSTR_RXY_FRRD },
  982. { "stdy", 0x67, INSTR_RXY_FRRD },
  983. #endif
  984. { "ldeb", 0x04, INSTR_RXE_FRRD },
  985. { "lxdb", 0x05, INSTR_RXE_FRRD },
  986. { "lxeb", 0x06, INSTR_RXE_FRRD },
  987. { "mxdb", 0x07, INSTR_RXE_FRRD },
  988. { "keb", 0x08, INSTR_RXE_FRRD },
  989. { "ceb", 0x09, INSTR_RXE_FRRD },
  990. { "aeb", 0x0a, INSTR_RXE_FRRD },
  991. { "seb", 0x0b, INSTR_RXE_FRRD },
  992. { "mdeb", 0x0c, INSTR_RXE_FRRD },
  993. { "deb", 0x0d, INSTR_RXE_FRRD },
  994. { "maeb", 0x0e, INSTR_RXF_FRRDF },
  995. { "mseb", 0x0f, INSTR_RXF_FRRDF },
  996. { "tceb", 0x10, INSTR_RXE_FRRD },
  997. { "tcdb", 0x11, INSTR_RXE_FRRD },
  998. { "tcxb", 0x12, INSTR_RXE_FRRD },
  999. { "sqeb", 0x14, INSTR_RXE_FRRD },
  1000. { "sqdb", 0x15, INSTR_RXE_FRRD },
  1001. { "meeb", 0x17, INSTR_RXE_FRRD },
  1002. { "kdb", 0x18, INSTR_RXE_FRRD },
  1003. { "cdb", 0x19, INSTR_RXE_FRRD },
  1004. { "adb", 0x1a, INSTR_RXE_FRRD },
  1005. { "sdb", 0x1b, INSTR_RXE_FRRD },
  1006. { "mdb", 0x1c, INSTR_RXE_FRRD },
  1007. { "ddb", 0x1d, INSTR_RXE_FRRD },
  1008. { "madb", 0x1e, INSTR_RXF_FRRDF },
  1009. { "msdb", 0x1f, INSTR_RXF_FRRDF },
  1010. { "lde", 0x24, INSTR_RXE_FRRD },
  1011. { "lxd", 0x25, INSTR_RXE_FRRD },
  1012. { "lxe", 0x26, INSTR_RXE_FRRD },
  1013. { "mae", 0x2e, INSTR_RXF_FRRDF },
  1014. { "mse", 0x2f, INSTR_RXF_FRRDF },
  1015. { "sqe", 0x34, INSTR_RXE_FRRD },
  1016. { "mee", 0x37, INSTR_RXE_FRRD },
  1017. { "mad", 0x3e, INSTR_RXF_FRRDF },
  1018. { "msd", 0x3f, INSTR_RXF_FRRDF },
  1019. { "", 0, INSTR_INVALID }
  1020. };
  1021. /* Extracts an operand value from an instruction. */
  1022. static unsigned int extract_operand(unsigned char *code,
  1023. const struct operand *operand)
  1024. {
  1025. unsigned int val;
  1026. int bits;
  1027. /* Extract fragments of the operand byte for byte. */
  1028. code += operand->shift / 8;
  1029. bits = (operand->shift & 7) + operand->bits;
  1030. val = 0;
  1031. do {
  1032. val <<= 8;
  1033. val |= (unsigned int) *code++;
  1034. bits -= 8;
  1035. } while (bits > 0);
  1036. val >>= -bits;
  1037. val &= ((1U << (operand->bits - 1)) << 1) - 1;
  1038. /* Check for special long displacement case. */
  1039. if (operand->bits == 20 && operand->shift == 20)
  1040. val = (val & 0xff) << 12 | (val & 0xfff00) >> 8;
  1041. /* Sign extend value if the operand is signed or pc relative. */
  1042. if ((operand->flags & (OPERAND_SIGNED | OPERAND_PCREL)) &&
  1043. (val & (1U << (operand->bits - 1))))
  1044. val |= (-1U << (operand->bits - 1)) << 1;
  1045. /* Double value if the operand is pc relative. */
  1046. if (operand->flags & OPERAND_PCREL)
  1047. val <<= 1;
  1048. /* Length x in an instructions has real length x + 1. */
  1049. if (operand->flags & OPERAND_LENGTH)
  1050. val++;
  1051. return val;
  1052. }
  1053. static inline int insn_length(unsigned char code)
  1054. {
  1055. return ((((int) code + 64) >> 7) + 1) << 1;
  1056. }
  1057. static struct insn *find_insn(unsigned char *code)
  1058. {
  1059. unsigned char opfrag = code[1];
  1060. unsigned char opmask;
  1061. struct insn *table;
  1062. switch (code[0]) {
  1063. case 0x01:
  1064. table = opcode_01;
  1065. break;
  1066. case 0xa5:
  1067. table = opcode_a5;
  1068. break;
  1069. case 0xa7:
  1070. table = opcode_a7;
  1071. break;
  1072. case 0xb2:
  1073. table = opcode_b2;
  1074. break;
  1075. case 0xb3:
  1076. table = opcode_b3;
  1077. break;
  1078. case 0xb9:
  1079. table = opcode_b9;
  1080. break;
  1081. case 0xc0:
  1082. table = opcode_c0;
  1083. break;
  1084. case 0xc2:
  1085. table = opcode_c2;
  1086. break;
  1087. case 0xc8:
  1088. table = opcode_c8;
  1089. break;
  1090. case 0xe3:
  1091. table = opcode_e3;
  1092. opfrag = code[5];
  1093. break;
  1094. case 0xe5:
  1095. table = opcode_e5;
  1096. break;
  1097. case 0xeb:
  1098. table = opcode_eb;
  1099. opfrag = code[5];
  1100. break;
  1101. case 0xec:
  1102. table = opcode_ec;
  1103. opfrag = code[5];
  1104. break;
  1105. case 0xed:
  1106. table = opcode_ed;
  1107. opfrag = code[5];
  1108. break;
  1109. default:
  1110. table = opcode;
  1111. opfrag = code[0];
  1112. break;
  1113. }
  1114. while (table->format != INSTR_INVALID) {
  1115. opmask = formats[table->format][0];
  1116. if (table->opfrag == (opfrag & opmask))
  1117. return table;
  1118. table++;
  1119. }
  1120. return NULL;
  1121. }
  1122. static int print_insn(char *buffer, unsigned char *code, unsigned long addr)
  1123. {
  1124. struct insn *insn;
  1125. const unsigned char *ops;
  1126. const struct operand *operand;
  1127. unsigned int value;
  1128. char separator;
  1129. char *ptr;
  1130. int i;
  1131. ptr = buffer;
  1132. insn = find_insn(code);
  1133. if (insn) {
  1134. ptr += sprintf(ptr, "%.5s\t", insn->name);
  1135. /* Extract the operands. */
  1136. separator = 0;
  1137. for (ops = formats[insn->format] + 1, i = 0;
  1138. *ops != 0 && i < 6; ops++, i++) {
  1139. operand = operands + *ops;
  1140. value = extract_operand(code, operand);
  1141. if ((operand->flags & OPERAND_INDEX) && value == 0)
  1142. continue;
  1143. if ((operand->flags & OPERAND_BASE) &&
  1144. value == 0 && separator == '(') {
  1145. separator = ',';
  1146. continue;
  1147. }
  1148. if (separator)
  1149. ptr += sprintf(ptr, "%c", separator);
  1150. if (operand->flags & OPERAND_GPR)
  1151. ptr += sprintf(ptr, "%%r%i", value);
  1152. else if (operand->flags & OPERAND_FPR)
  1153. ptr += sprintf(ptr, "%%f%i", value);
  1154. else if (operand->flags & OPERAND_AR)
  1155. ptr += sprintf(ptr, "%%a%i", value);
  1156. else if (operand->flags & OPERAND_CR)
  1157. ptr += sprintf(ptr, "%%c%i", value);
  1158. else if (operand->flags & OPERAND_PCREL)
  1159. ptr += sprintf(ptr, "%lx", (signed int) value
  1160. + addr);
  1161. else if (operand->flags & OPERAND_SIGNED)
  1162. ptr += sprintf(ptr, "%i", value);
  1163. else
  1164. ptr += sprintf(ptr, "%u", value);
  1165. if (operand->flags & OPERAND_DISP)
  1166. separator = '(';
  1167. else if (operand->flags & OPERAND_BASE) {
  1168. ptr += sprintf(ptr, ")");
  1169. separator = ',';
  1170. } else
  1171. separator = ',';
  1172. }
  1173. } else
  1174. ptr += sprintf(ptr, "unknown");
  1175. return (int) (ptr - buffer);
  1176. }
  1177. void show_code(struct pt_regs *regs)
  1178. {
  1179. char *mode = (regs->psw.mask & PSW_MASK_PSTATE) ? "User" : "Krnl";
  1180. unsigned char code[64];
  1181. char buffer[64], *ptr;
  1182. mm_segment_t old_fs;
  1183. unsigned long addr;
  1184. int start, end, opsize, hops, i;
  1185. /* Get a snapshot of the 64 bytes surrounding the fault address. */
  1186. old_fs = get_fs();
  1187. set_fs((regs->psw.mask & PSW_MASK_PSTATE) ? USER_DS : KERNEL_DS);
  1188. for (start = 32; start && regs->psw.addr >= 34 - start; start -= 2) {
  1189. addr = regs->psw.addr - 34 + start;
  1190. if (__copy_from_user(code + start - 2,
  1191. (char __user *) addr, 2))
  1192. break;
  1193. }
  1194. for (end = 32; end < 64; end += 2) {
  1195. addr = regs->psw.addr + end - 32;
  1196. if (__copy_from_user(code + end,
  1197. (char __user *) addr, 2))
  1198. break;
  1199. }
  1200. set_fs(old_fs);
  1201. /* Code snapshot useable ? */
  1202. if ((regs->psw.addr & 1) || start >= end) {
  1203. printk("%s Code: Bad PSW.\n", mode);
  1204. return;
  1205. }
  1206. /* Find a starting point for the disassembly. */
  1207. while (start < 32) {
  1208. for (i = 0, hops = 0; start + i < 32 && hops < 3; hops++) {
  1209. if (!find_insn(code + start + i))
  1210. break;
  1211. i += insn_length(code[start + i]);
  1212. }
  1213. if (start + i == 32)
  1214. /* Looks good, sequence ends at PSW. */
  1215. break;
  1216. start += 2;
  1217. }
  1218. /* Decode the instructions. */
  1219. ptr = buffer;
  1220. ptr += sprintf(ptr, "%s Code:", mode);
  1221. hops = 0;
  1222. while (start < end && hops < 8) {
  1223. *ptr++ = (start == 32) ? '>' : ' ';
  1224. addr = regs->psw.addr + start - 32;
  1225. ptr += sprintf(ptr, ONELONG, addr);
  1226. opsize = insn_length(code[start]);
  1227. if (start + opsize >= end)
  1228. break;
  1229. for (i = 0; i < opsize; i++)
  1230. ptr += sprintf(ptr, "%02x", code[start + i]);
  1231. *ptr++ = '\t';
  1232. if (i < 6)
  1233. *ptr++ = '\t';
  1234. ptr += print_insn(ptr, code + start, addr);
  1235. start += opsize;
  1236. printk(buffer);
  1237. ptr = buffer;
  1238. ptr += sprintf(ptr, "\n ");
  1239. hops++;
  1240. }
  1241. printk("\n");
  1242. }