xref: /openbmc/linux/arch/s390/kernel/dis.c (revision 05bcf503)
1 /*
2  * Disassemble s390 instructions.
3  *
4  * Copyright IBM Corp. 2007
5  * Author(s): Martin Schwidefsky (schwidefsky@de.ibm.com),
6  */
7 
8 #include <linux/sched.h>
9 #include <linux/kernel.h>
10 #include <linux/string.h>
11 #include <linux/errno.h>
12 #include <linux/ptrace.h>
13 #include <linux/timer.h>
14 #include <linux/mm.h>
15 #include <linux/smp.h>
16 #include <linux/init.h>
17 #include <linux/interrupt.h>
18 #include <linux/delay.h>
19 #include <linux/module.h>
20 #include <linux/kallsyms.h>
21 #include <linux/reboot.h>
22 #include <linux/kprobes.h>
23 #include <linux/kdebug.h>
24 
25 #include <asm/uaccess.h>
26 #include <asm/io.h>
27 #include <linux/atomic.h>
28 #include <asm/mathemu.h>
29 #include <asm/cpcmd.h>
30 #include <asm/lowcore.h>
31 #include <asm/debug.h>
32 #include <asm/irq.h>
33 
34 #ifndef CONFIG_64BIT
35 #define ONELONG "%08lx: "
36 #else /* CONFIG_64BIT */
37 #define ONELONG "%016lx: "
38 #endif /* CONFIG_64BIT */
39 
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 
51 enum {
52 	UNUSED,	/* Indicates the end of the operand list */
53 	R_8,	/* GPR starting at position 8 */
54 	R_12,	/* GPR starting at position 12 */
55 	R_16,	/* GPR starting at position 16 */
56 	R_20,	/* GPR starting at position 20 */
57 	R_24,	/* GPR starting at position 24 */
58 	R_28,	/* GPR starting at position 28 */
59 	R_32,	/* GPR starting at position 32 */
60 	F_8,	/* FPR starting at position 8 */
61 	F_12,	/* FPR starting at position 12 */
62 	F_16,	/* FPR starting at position 16 */
63 	F_20,	/* FPR starting at position 16 */
64 	F_24,	/* FPR starting at position 24 */
65 	F_28,	/* FPR starting at position 28 */
66 	F_32,	/* FPR starting at position 32 */
67 	A_8,	/* Access reg. starting at position 8 */
68 	A_12,	/* Access reg. starting at position 12 */
69 	A_24,	/* Access reg. starting at position 24 */
70 	A_28,	/* Access reg. starting at position 28 */
71 	C_8,	/* Control reg. starting at position 8 */
72 	C_12,	/* Control reg. starting at position 12 */
73 	B_16,	/* Base register starting at position 16 */
74 	B_32,	/* Base register starting at position 32 */
75 	X_12,	/* Index register starting at position 12 */
76 	D_20,	/* Displacement starting at position 20 */
77 	D_36,	/* Displacement starting at position 36 */
78 	D20_20,	/* 20 bit displacement starting at 20 */
79 	L4_8,	/* 4 bit length starting at position 8 */
80 	L4_12,	/* 4 bit length starting at position 12 */
81 	L8_8,	/* 8 bit length starting at position 8 */
82 	U4_8,	/* 4 bit unsigned value starting at 8 */
83 	U4_12,	/* 4 bit unsigned value starting at 12 */
84 	U4_16,	/* 4 bit unsigned value starting at 16 */
85 	U4_20,	/* 4 bit unsigned value starting at 20 */
86 	U4_32,	/* 4 bit unsigned value starting at 32 */
87 	U8_8,	/* 8 bit unsigned value starting at 8 */
88 	U8_16,	/* 8 bit unsigned value starting at 16 */
89 	U8_24,	/* 8 bit unsigned value starting at 24 */
90 	U8_32,	/* 8 bit unsigned value starting at 32 */
91 	I8_8,	/* 8 bit signed value starting at 8 */
92 	I8_32,	/* 8 bit signed value starting at 32 */
93 	I16_16,	/* 16 bit signed value starting at 16 */
94 	I16_32,	/* 32 bit signed value starting at 16 */
95 	U16_16,	/* 16 bit unsigned value starting at 16 */
96 	U16_32,	/* 32 bit unsigned value starting at 16 */
97 	J16_16,	/* PC relative jump offset at 16 */
98 	J32_16,	/* PC relative long offset at 16 */
99 	I32_16,	/* 32 bit signed value starting at 16 */
100 	U32_16,	/* 32 bit unsigned value starting at 16 */
101 	M_16,	/* 4 bit optional mask starting at 16 */
102 	RO_28,	/* optional GPR starting at position 28 */
103 };
104 
105 /*
106  * Enumeration of the different instruction formats.
107  * For details consult the principles of operation.
108  */
109 enum {
110 	INSTR_INVALID,
111 	INSTR_E,
112 	INSTR_RIE_R0IU, INSTR_RIE_R0UU, INSTR_RIE_RRP, INSTR_RIE_RRPU,
113 	INSTR_RIE_RRUUU, INSTR_RIE_RUPI, INSTR_RIE_RUPU, INSTR_RIE_RRI0,
114 	INSTR_RIL_RI, INSTR_RIL_RP, INSTR_RIL_RU, INSTR_RIL_UP,
115 	INSTR_RIS_R0RDU, INSTR_RIS_R0UU, INSTR_RIS_RURDI, INSTR_RIS_RURDU,
116 	INSTR_RI_RI, INSTR_RI_RP, INSTR_RI_RU, INSTR_RI_UP,
117 	INSTR_RRE_00, INSTR_RRE_0R, INSTR_RRE_AA, INSTR_RRE_AR, INSTR_RRE_F0,
118 	INSTR_RRE_FF, INSTR_RRE_FR, INSTR_RRE_R0, INSTR_RRE_RA, INSTR_RRE_RF,
119 	INSTR_RRE_RR, INSTR_RRE_RR_OPT,
120 	INSTR_RRF_0UFF, INSTR_RRF_F0FF, INSTR_RRF_F0FF2, INSTR_RRF_F0FR,
121 	INSTR_RRF_FFRU, INSTR_RRF_FUFF, INSTR_RRF_M0RR, INSTR_RRF_R0RR,
122 	INSTR_RRF_R0RR2, INSTR_RRF_RURR, INSTR_RRF_U0FF, INSTR_RRF_U0RF,
123 	INSTR_RRF_U0RR, INSTR_RRF_UUFF, INSTR_RRR_F0FF, INSTR_RRS_RRRDU,
124 	INSTR_RR_FF, INSTR_RR_R0, INSTR_RR_RR, INSTR_RR_U0, INSTR_RR_UR,
125 	INSTR_RSE_CCRD, INSTR_RSE_RRRD, INSTR_RSE_RURD,
126 	INSTR_RSI_RRP,
127 	INSTR_RSL_R0RD,
128 	INSTR_RSY_AARD, INSTR_RSY_CCRD, INSTR_RSY_RRRD, INSTR_RSY_RURD,
129 	INSTR_RSY_RDRM,
130 	INSTR_RS_AARD, INSTR_RS_CCRD, INSTR_RS_R0RD, INSTR_RS_RRRD,
131 	INSTR_RS_RURD,
132 	INSTR_RXE_FRRD, INSTR_RXE_RRRD,
133 	INSTR_RXF_FRRDF,
134 	INSTR_RXY_FRRD, INSTR_RXY_RRRD, INSTR_RXY_URRD,
135 	INSTR_RX_FRRD, INSTR_RX_RRRD, INSTR_RX_URRD,
136 	INSTR_SIL_RDI, INSTR_SIL_RDU,
137 	INSTR_SIY_IRD, INSTR_SIY_URD,
138 	INSTR_SI_URD,
139 	INSTR_SSE_RDRD,
140 	INSTR_SSF_RRDRD, INSTR_SSF_RRDRD2,
141 	INSTR_SS_L0RDRD, INSTR_SS_LIRDRD, INSTR_SS_LLRDRD, INSTR_SS_RRRDRD,
142 	INSTR_SS_RRRDRD2, INSTR_SS_RRRDRD3,
143 	INSTR_S_00, INSTR_S_RD,
144 };
145 
146 struct operand {
147 	int bits;		/* The number of bits in the operand. */
148 	int shift;		/* The number of bits to shift. */
149 	int flags;		/* One bit syntax flags. */
150 };
151 
152 struct insn {
153 	const char name[5];
154 	unsigned char opfrag;
155 	unsigned char format;
156 };
157 
158 static const struct operand operands[] =
159 {
160 	[UNUSED]  = { 0, 0, 0 },
161 	[R_8]	 = {  4,  8, OPERAND_GPR },
162 	[R_12]	 = {  4, 12, OPERAND_GPR },
163 	[R_16]	 = {  4, 16, OPERAND_GPR },
164 	[R_20]	 = {  4, 20, OPERAND_GPR },
165 	[R_24]	 = {  4, 24, OPERAND_GPR },
166 	[R_28]	 = {  4, 28, OPERAND_GPR },
167 	[R_32]	 = {  4, 32, OPERAND_GPR },
168 	[F_8]	 = {  4,  8, OPERAND_FPR },
169 	[F_12]	 = {  4, 12, OPERAND_FPR },
170 	[F_16]	 = {  4, 16, OPERAND_FPR },
171 	[F_20]	 = {  4, 16, OPERAND_FPR },
172 	[F_24]	 = {  4, 24, OPERAND_FPR },
173 	[F_28]	 = {  4, 28, OPERAND_FPR },
174 	[F_32]	 = {  4, 32, OPERAND_FPR },
175 	[A_8]	 = {  4,  8, OPERAND_AR },
176 	[A_12]	 = {  4, 12, OPERAND_AR },
177 	[A_24]	 = {  4, 24, OPERAND_AR },
178 	[A_28]	 = {  4, 28, OPERAND_AR },
179 	[C_8]	 = {  4,  8, OPERAND_CR },
180 	[C_12]	 = {  4, 12, OPERAND_CR },
181 	[B_16]	 = {  4, 16, OPERAND_BASE | OPERAND_GPR },
182 	[B_32]	 = {  4, 32, OPERAND_BASE | OPERAND_GPR },
183 	[X_12]	 = {  4, 12, OPERAND_INDEX | OPERAND_GPR },
184 	[D_20]	 = { 12, 20, OPERAND_DISP },
185 	[D_36]	 = { 12, 36, OPERAND_DISP },
186 	[D20_20] = { 20, 20, OPERAND_DISP | OPERAND_SIGNED },
187 	[L4_8]	 = {  4,  8, OPERAND_LENGTH },
188 	[L4_12]  = {  4, 12, OPERAND_LENGTH },
189 	[L8_8]	 = {  8,  8, OPERAND_LENGTH },
190 	[U4_8]	 = {  4,  8, 0 },
191 	[U4_12]  = {  4, 12, 0 },
192 	[U4_16]  = {  4, 16, 0 },
193 	[U4_20]  = {  4, 20, 0 },
194 	[U4_32]  = {  4, 32, 0 },
195 	[U8_8]	 = {  8,  8, 0 },
196 	[U8_16]  = {  8, 16, 0 },
197 	[U8_24]  = {  8, 24, 0 },
198 	[U8_32]  = {  8, 32, 0 },
199 	[I16_16] = { 16, 16, OPERAND_SIGNED },
200 	[U16_16] = { 16, 16, 0 },
201 	[U16_32] = { 16, 32, 0 },
202 	[J16_16] = { 16, 16, OPERAND_PCREL },
203 	[I16_32] = { 16, 32, OPERAND_SIGNED },
204 	[J32_16] = { 32, 16, OPERAND_PCREL },
205 	[I32_16] = { 32, 16, OPERAND_SIGNED },
206 	[U32_16] = { 32, 16, 0 },
207 	[M_16]	 = {  4, 16, 0 },
208 	[RO_28]  = {  4, 28, OPERAND_GPR }
209 };
210 
211 static const unsigned char formats[][7] = {
212 	[INSTR_E]	  = { 0xff, 0,0,0,0,0,0 },
213 	[INSTR_RIE_R0UU]  = { 0xff, R_8,U16_16,U4_32,0,0,0 },
214 	[INSTR_RIE_RRPU]  = { 0xff, R_8,R_12,U4_32,J16_16,0,0 },
215 	[INSTR_RIE_RRP]	  = { 0xff, R_8,R_12,J16_16,0,0,0 },
216 	[INSTR_RIE_RRUUU] = { 0xff, R_8,R_12,U8_16,U8_24,U8_32,0 },
217 	[INSTR_RIE_RUPI]  = { 0xff, R_8,I8_32,U4_12,J16_16,0,0 },
218 	[INSTR_RIE_RRI0]  = { 0xff, R_8,R_12,I16_16,0,0,0 },
219 	[INSTR_RIL_RI]	  = { 0x0f, R_8,I32_16,0,0,0,0 },
220 	[INSTR_RIL_RP]	  = { 0x0f, R_8,J32_16,0,0,0,0 },
221 	[INSTR_RIL_RU]	  = { 0x0f, R_8,U32_16,0,0,0,0 },
222 	[INSTR_RIL_UP]	  = { 0x0f, U4_8,J32_16,0,0,0,0 },
223 	[INSTR_RIS_R0RDU] = { 0xff, R_8,U8_32,D_20,B_16,0,0 },
224 	[INSTR_RIS_RURDI] = { 0xff, R_8,I8_32,U4_12,D_20,B_16,0 },
225 	[INSTR_RIS_RURDU] = { 0xff, R_8,U8_32,U4_12,D_20,B_16,0 },
226 	[INSTR_RI_RI]	  = { 0x0f, R_8,I16_16,0,0,0,0 },
227 	[INSTR_RI_RP]	  = { 0x0f, R_8,J16_16,0,0,0,0 },
228 	[INSTR_RI_RU]	  = { 0x0f, R_8,U16_16,0,0,0,0 },
229 	[INSTR_RI_UP]	  = { 0x0f, U4_8,J16_16,0,0,0,0 },
230 	[INSTR_RRE_00]	  = { 0xff, 0,0,0,0,0,0 },
231 	[INSTR_RRE_0R]	  = { 0xff, R_28,0,0,0,0,0 },
232 	[INSTR_RRE_AA]	  = { 0xff, A_24,A_28,0,0,0,0 },
233 	[INSTR_RRE_AR]	  = { 0xff, A_24,R_28,0,0,0,0 },
234 	[INSTR_RRE_F0]	  = { 0xff, F_24,0,0,0,0,0 },
235 	[INSTR_RRE_FF]	  = { 0xff, F_24,F_28,0,0,0,0 },
236 	[INSTR_RRE_FR]	  = { 0xff, F_24,R_28,0,0,0,0 },
237 	[INSTR_RRE_R0]	  = { 0xff, R_24,0,0,0,0,0 },
238 	[INSTR_RRE_RA]	  = { 0xff, R_24,A_28,0,0,0,0 },
239 	[INSTR_RRE_RF]	  = { 0xff, R_24,F_28,0,0,0,0 },
240 	[INSTR_RRE_RR]	  = { 0xff, R_24,R_28,0,0,0,0 },
241 	[INSTR_RRE_RR_OPT]= { 0xff, R_24,RO_28,0,0,0,0 },
242 	[INSTR_RRF_0UFF]  = { 0xff, F_24,F_28,U4_20,0,0,0 },
243 	[INSTR_RRF_F0FF2] = { 0xff, F_24,F_16,F_28,0,0,0 },
244 	[INSTR_RRF_F0FF]  = { 0xff, F_16,F_24,F_28,0,0,0 },
245 	[INSTR_RRF_F0FR]  = { 0xff, F_24,F_16,R_28,0,0,0 },
246 	[INSTR_RRF_FFRU]  = { 0xff, F_24,F_16,R_28,U4_20,0,0 },
247 	[INSTR_RRF_FUFF]  = { 0xff, F_24,F_16,F_28,U4_20,0,0 },
248 	[INSTR_RRF_M0RR]  = { 0xff, R_24,R_28,M_16,0,0,0 },
249 	[INSTR_RRF_R0RR]  = { 0xff, R_24,R_16,R_28,0,0,0 },
250 	[INSTR_RRF_R0RR2] = { 0xff, R_24,R_28,R_16,0,0,0 },
251 	[INSTR_RRF_RURR]  = { 0xff, R_24,R_28,R_16,U4_20,0,0 },
252 	[INSTR_RRF_U0FF]  = { 0xff, F_24,U4_16,F_28,0,0,0 },
253 	[INSTR_RRF_U0RF]  = { 0xff, R_24,U4_16,F_28,0,0,0 },
254 	[INSTR_RRF_U0RR]  = { 0xff, R_24,R_28,U4_16,0,0,0 },
255 	[INSTR_RRF_UUFF]  = { 0xff, F_24,U4_16,F_28,U4_20,0,0 },
256 	[INSTR_RRR_F0FF]  = { 0xff, F_24,F_28,F_16,0,0,0 },
257 	[INSTR_RRS_RRRDU] = { 0xff, R_8,R_12,U4_32,D_20,B_16,0 },
258 	[INSTR_RR_FF]	  = { 0xff, F_8,F_12,0,0,0,0 },
259 	[INSTR_RR_R0]	  = { 0xff, R_8, 0,0,0,0,0 },
260 	[INSTR_RR_RR]	  = { 0xff, R_8,R_12,0,0,0,0 },
261 	[INSTR_RR_U0]	  = { 0xff, U8_8, 0,0,0,0,0 },
262 	[INSTR_RR_UR]	  = { 0xff, U4_8,R_12,0,0,0,0 },
263 	[INSTR_RSE_CCRD]  = { 0xff, C_8,C_12,D_20,B_16,0,0 },
264 	[INSTR_RSE_RRRD]  = { 0xff, R_8,R_12,D_20,B_16,0,0 },
265 	[INSTR_RSE_RURD]  = { 0xff, R_8,U4_12,D_20,B_16,0,0 },
266 	[INSTR_RSI_RRP]	  = { 0xff, R_8,R_12,J16_16,0,0,0 },
267 	[INSTR_RSL_R0RD]  = { 0xff, D_20,L4_8,B_16,0,0,0 },
268 	[INSTR_RSY_AARD]  = { 0xff, A_8,A_12,D20_20,B_16,0,0 },
269 	[INSTR_RSY_CCRD]  = { 0xff, C_8,C_12,D20_20,B_16,0,0 },
270 	[INSTR_RSY_RRRD]  = { 0xff, R_8,R_12,D20_20,B_16,0,0 },
271 	[INSTR_RSY_RURD]  = { 0xff, R_8,U4_12,D20_20,B_16,0,0 },
272 	[INSTR_RSY_RDRM]  = { 0xff, R_8,D20_20,B_16,U4_12,0,0 },
273 	[INSTR_RS_AARD]	  = { 0xff, A_8,A_12,D_20,B_16,0,0 },
274 	[INSTR_RS_CCRD]	  = { 0xff, C_8,C_12,D_20,B_16,0,0 },
275 	[INSTR_RS_R0RD]	  = { 0xff, R_8,D_20,B_16,0,0,0 },
276 	[INSTR_RS_RRRD]	  = { 0xff, R_8,R_12,D_20,B_16,0,0 },
277 	[INSTR_RS_RURD]	  = { 0xff, R_8,U4_12,D_20,B_16,0,0 },
278 	[INSTR_RXE_FRRD]  = { 0xff, F_8,D_20,X_12,B_16,0,0 },
279 	[INSTR_RXE_RRRD]  = { 0xff, R_8,D_20,X_12,B_16,0,0 },
280 	[INSTR_RXF_FRRDF] = { 0xff, F_32,F_8,D_20,X_12,B_16,0 },
281 	[INSTR_RXY_FRRD]  = { 0xff, F_8,D20_20,X_12,B_16,0,0 },
282 	[INSTR_RXY_RRRD]  = { 0xff, R_8,D20_20,X_12,B_16,0,0 },
283 	[INSTR_RXY_URRD]  = { 0xff, U4_8,D20_20,X_12,B_16,0,0 },
284 	[INSTR_RX_FRRD]	  = { 0xff, F_8,D_20,X_12,B_16,0,0 },
285 	[INSTR_RX_RRRD]	  = { 0xff, R_8,D_20,X_12,B_16,0,0 },
286 	[INSTR_RX_URRD]	  = { 0xff, U4_8,D_20,X_12,B_16,0,0 },
287 	[INSTR_SIL_RDI]   = { 0xff, D_20,B_16,I16_32,0,0,0 },
288 	[INSTR_SIL_RDU]   = { 0xff, D_20,B_16,U16_32,0,0,0 },
289 	[INSTR_SIY_IRD]   = { 0xff, D20_20,B_16,I8_8,0,0,0 },
290 	[INSTR_SIY_URD]	  = { 0xff, D20_20,B_16,U8_8,0,0,0 },
291 	[INSTR_SI_URD]	  = { 0xff, D_20,B_16,U8_8,0,0,0 },
292 	[INSTR_SSE_RDRD]  = { 0xff, D_20,B_16,D_36,B_32,0,0 },
293 	[INSTR_SSF_RRDRD] = { 0x00, D_20,B_16,D_36,B_32,R_8,0 },
294 	[INSTR_SSF_RRDRD2]= { 0x00, R_8,D_20,B_16,D_36,B_32,0 },
295 	[INSTR_SS_L0RDRD] = { 0xff, D_20,L8_8,B_16,D_36,B_32,0 },
296 	[INSTR_SS_LIRDRD] = { 0xff, D_20,L4_8,B_16,D_36,B_32,U4_12 },
297 	[INSTR_SS_LLRDRD] = { 0xff, D_20,L4_8,B_16,D_36,L4_12,B_32 },
298 	[INSTR_SS_RRRDRD2]= { 0xff, R_8,D_20,B_16,R_12,D_36,B_32 },
299 	[INSTR_SS_RRRDRD3]= { 0xff, R_8,R_12,D_20,B_16,D_36,B_32 },
300 	[INSTR_SS_RRRDRD] = { 0xff, D_20,R_8,B_16,D_36,B_32,R_12 },
301 	[INSTR_S_00]	  = { 0xff, 0,0,0,0,0,0 },
302 	[INSTR_S_RD]	  = { 0xff, D_20,B_16,0,0,0,0 },
303 };
304 
305 enum {
306 	LONG_INSN_ALGHSIK,
307 	LONG_INSN_ALHSIK,
308 	LONG_INSN_CLFHSI,
309 	LONG_INSN_CLGFRL,
310 	LONG_INSN_CLGHRL,
311 	LONG_INSN_CLGHSI,
312 	LONG_INSN_CLHHSI,
313 	LONG_INSN_LLGFRL,
314 	LONG_INSN_LLGHRL,
315 	LONG_INSN_POPCNT,
316 	LONG_INSN_RISBHG,
317 	LONG_INSN_RISBLG,
318 	LONG_INSN_RINEXT,
319 	LONG_INSN_RIEMIT,
320 	LONG_INSN_TABORT,
321 	LONG_INSN_TBEGIN,
322 	LONG_INSN_TBEGINC,
323 };
324 
325 static char *long_insn_name[] = {
326 	[LONG_INSN_ALGHSIK] = "alghsik",
327 	[LONG_INSN_ALHSIK] = "alhsik",
328 	[LONG_INSN_CLFHSI] = "clfhsi",
329 	[LONG_INSN_CLGFRL] = "clgfrl",
330 	[LONG_INSN_CLGHRL] = "clghrl",
331 	[LONG_INSN_CLGHSI] = "clghsi",
332 	[LONG_INSN_CLHHSI] = "clhhsi",
333 	[LONG_INSN_LLGFRL] = "llgfrl",
334 	[LONG_INSN_LLGHRL] = "llghrl",
335 	[LONG_INSN_POPCNT] = "popcnt",
336 	[LONG_INSN_RISBHG] = "risbhg",
337 	[LONG_INSN_RISBLG] = "risblg",
338 	[LONG_INSN_RINEXT] = "rinext",
339 	[LONG_INSN_RIEMIT] = "riemit",
340 	[LONG_INSN_TABORT] = "tabort",
341 	[LONG_INSN_TBEGIN] = "tbegin",
342 	[LONG_INSN_TBEGINC] = "tbeginc",
343 };
344 
345 static struct insn opcode[] = {
346 #ifdef CONFIG_64BIT
347 	{ "lmd", 0xef, INSTR_SS_RRRDRD3 },
348 #endif
349 	{ "spm", 0x04, INSTR_RR_R0 },
350 	{ "balr", 0x05, INSTR_RR_RR },
351 	{ "bctr", 0x06, INSTR_RR_RR },
352 	{ "bcr", 0x07, INSTR_RR_UR },
353 	{ "svc", 0x0a, INSTR_RR_U0 },
354 	{ "bsm", 0x0b, INSTR_RR_RR },
355 	{ "bassm", 0x0c, INSTR_RR_RR },
356 	{ "basr", 0x0d, INSTR_RR_RR },
357 	{ "mvcl", 0x0e, INSTR_RR_RR },
358 	{ "clcl", 0x0f, INSTR_RR_RR },
359 	{ "lpr", 0x10, INSTR_RR_RR },
360 	{ "lnr", 0x11, INSTR_RR_RR },
361 	{ "ltr", 0x12, INSTR_RR_RR },
362 	{ "lcr", 0x13, INSTR_RR_RR },
363 	{ "nr", 0x14, INSTR_RR_RR },
364 	{ "clr", 0x15, INSTR_RR_RR },
365 	{ "or", 0x16, INSTR_RR_RR },
366 	{ "xr", 0x17, INSTR_RR_RR },
367 	{ "lr", 0x18, INSTR_RR_RR },
368 	{ "cr", 0x19, INSTR_RR_RR },
369 	{ "ar", 0x1a, INSTR_RR_RR },
370 	{ "sr", 0x1b, INSTR_RR_RR },
371 	{ "mr", 0x1c, INSTR_RR_RR },
372 	{ "dr", 0x1d, INSTR_RR_RR },
373 	{ "alr", 0x1e, INSTR_RR_RR },
374 	{ "slr", 0x1f, INSTR_RR_RR },
375 	{ "lpdr", 0x20, INSTR_RR_FF },
376 	{ "lndr", 0x21, INSTR_RR_FF },
377 	{ "ltdr", 0x22, INSTR_RR_FF },
378 	{ "lcdr", 0x23, INSTR_RR_FF },
379 	{ "hdr", 0x24, INSTR_RR_FF },
380 	{ "ldxr", 0x25, INSTR_RR_FF },
381 	{ "lrdr", 0x25, INSTR_RR_FF },
382 	{ "mxr", 0x26, INSTR_RR_FF },
383 	{ "mxdr", 0x27, INSTR_RR_FF },
384 	{ "ldr", 0x28, INSTR_RR_FF },
385 	{ "cdr", 0x29, INSTR_RR_FF },
386 	{ "adr", 0x2a, INSTR_RR_FF },
387 	{ "sdr", 0x2b, INSTR_RR_FF },
388 	{ "mdr", 0x2c, INSTR_RR_FF },
389 	{ "ddr", 0x2d, INSTR_RR_FF },
390 	{ "awr", 0x2e, INSTR_RR_FF },
391 	{ "swr", 0x2f, INSTR_RR_FF },
392 	{ "lper", 0x30, INSTR_RR_FF },
393 	{ "lner", 0x31, INSTR_RR_FF },
394 	{ "lter", 0x32, INSTR_RR_FF },
395 	{ "lcer", 0x33, INSTR_RR_FF },
396 	{ "her", 0x34, INSTR_RR_FF },
397 	{ "ledr", 0x35, INSTR_RR_FF },
398 	{ "lrer", 0x35, INSTR_RR_FF },
399 	{ "axr", 0x36, INSTR_RR_FF },
400 	{ "sxr", 0x37, INSTR_RR_FF },
401 	{ "ler", 0x38, INSTR_RR_FF },
402 	{ "cer", 0x39, INSTR_RR_FF },
403 	{ "aer", 0x3a, INSTR_RR_FF },
404 	{ "ser", 0x3b, INSTR_RR_FF },
405 	{ "mder", 0x3c, INSTR_RR_FF },
406 	{ "mer", 0x3c, INSTR_RR_FF },
407 	{ "der", 0x3d, INSTR_RR_FF },
408 	{ "aur", 0x3e, INSTR_RR_FF },
409 	{ "sur", 0x3f, INSTR_RR_FF },
410 	{ "sth", 0x40, INSTR_RX_RRRD },
411 	{ "la", 0x41, INSTR_RX_RRRD },
412 	{ "stc", 0x42, INSTR_RX_RRRD },
413 	{ "ic", 0x43, INSTR_RX_RRRD },
414 	{ "ex", 0x44, INSTR_RX_RRRD },
415 	{ "bal", 0x45, INSTR_RX_RRRD },
416 	{ "bct", 0x46, INSTR_RX_RRRD },
417 	{ "bc", 0x47, INSTR_RX_URRD },
418 	{ "lh", 0x48, INSTR_RX_RRRD },
419 	{ "ch", 0x49, INSTR_RX_RRRD },
420 	{ "ah", 0x4a, INSTR_RX_RRRD },
421 	{ "sh", 0x4b, INSTR_RX_RRRD },
422 	{ "mh", 0x4c, INSTR_RX_RRRD },
423 	{ "bas", 0x4d, INSTR_RX_RRRD },
424 	{ "cvd", 0x4e, INSTR_RX_RRRD },
425 	{ "cvb", 0x4f, INSTR_RX_RRRD },
426 	{ "st", 0x50, INSTR_RX_RRRD },
427 	{ "lae", 0x51, INSTR_RX_RRRD },
428 	{ "n", 0x54, INSTR_RX_RRRD },
429 	{ "cl", 0x55, INSTR_RX_RRRD },
430 	{ "o", 0x56, INSTR_RX_RRRD },
431 	{ "x", 0x57, INSTR_RX_RRRD },
432 	{ "l", 0x58, INSTR_RX_RRRD },
433 	{ "c", 0x59, INSTR_RX_RRRD },
434 	{ "a", 0x5a, INSTR_RX_RRRD },
435 	{ "s", 0x5b, INSTR_RX_RRRD },
436 	{ "m", 0x5c, INSTR_RX_RRRD },
437 	{ "d", 0x5d, INSTR_RX_RRRD },
438 	{ "al", 0x5e, INSTR_RX_RRRD },
439 	{ "sl", 0x5f, INSTR_RX_RRRD },
440 	{ "std", 0x60, INSTR_RX_FRRD },
441 	{ "mxd", 0x67, INSTR_RX_FRRD },
442 	{ "ld", 0x68, INSTR_RX_FRRD },
443 	{ "cd", 0x69, INSTR_RX_FRRD },
444 	{ "ad", 0x6a, INSTR_RX_FRRD },
445 	{ "sd", 0x6b, INSTR_RX_FRRD },
446 	{ "md", 0x6c, INSTR_RX_FRRD },
447 	{ "dd", 0x6d, INSTR_RX_FRRD },
448 	{ "aw", 0x6e, INSTR_RX_FRRD },
449 	{ "sw", 0x6f, INSTR_RX_FRRD },
450 	{ "ste", 0x70, INSTR_RX_FRRD },
451 	{ "ms", 0x71, INSTR_RX_RRRD },
452 	{ "le", 0x78, INSTR_RX_FRRD },
453 	{ "ce", 0x79, INSTR_RX_FRRD },
454 	{ "ae", 0x7a, INSTR_RX_FRRD },
455 	{ "se", 0x7b, INSTR_RX_FRRD },
456 	{ "mde", 0x7c, INSTR_RX_FRRD },
457 	{ "me", 0x7c, INSTR_RX_FRRD },
458 	{ "de", 0x7d, INSTR_RX_FRRD },
459 	{ "au", 0x7e, INSTR_RX_FRRD },
460 	{ "su", 0x7f, INSTR_RX_FRRD },
461 	{ "ssm", 0x80, INSTR_S_RD },
462 	{ "lpsw", 0x82, INSTR_S_RD },
463 	{ "diag", 0x83, INSTR_RS_RRRD },
464 	{ "brxh", 0x84, INSTR_RSI_RRP },
465 	{ "brxle", 0x85, INSTR_RSI_RRP },
466 	{ "bxh", 0x86, INSTR_RS_RRRD },
467 	{ "bxle", 0x87, INSTR_RS_RRRD },
468 	{ "srl", 0x88, INSTR_RS_R0RD },
469 	{ "sll", 0x89, INSTR_RS_R0RD },
470 	{ "sra", 0x8a, INSTR_RS_R0RD },
471 	{ "sla", 0x8b, INSTR_RS_R0RD },
472 	{ "srdl", 0x8c, INSTR_RS_R0RD },
473 	{ "sldl", 0x8d, INSTR_RS_R0RD },
474 	{ "srda", 0x8e, INSTR_RS_R0RD },
475 	{ "slda", 0x8f, INSTR_RS_R0RD },
476 	{ "stm", 0x90, INSTR_RS_RRRD },
477 	{ "tm", 0x91, INSTR_SI_URD },
478 	{ "mvi", 0x92, INSTR_SI_URD },
479 	{ "ts", 0x93, INSTR_S_RD },
480 	{ "ni", 0x94, INSTR_SI_URD },
481 	{ "cli", 0x95, INSTR_SI_URD },
482 	{ "oi", 0x96, INSTR_SI_URD },
483 	{ "xi", 0x97, INSTR_SI_URD },
484 	{ "lm", 0x98, INSTR_RS_RRRD },
485 	{ "trace", 0x99, INSTR_RS_RRRD },
486 	{ "lam", 0x9a, INSTR_RS_AARD },
487 	{ "stam", 0x9b, INSTR_RS_AARD },
488 	{ "mvcle", 0xa8, INSTR_RS_RRRD },
489 	{ "clcle", 0xa9, INSTR_RS_RRRD },
490 	{ "stnsm", 0xac, INSTR_SI_URD },
491 	{ "stosm", 0xad, INSTR_SI_URD },
492 	{ "sigp", 0xae, INSTR_RS_RRRD },
493 	{ "mc", 0xaf, INSTR_SI_URD },
494 	{ "lra", 0xb1, INSTR_RX_RRRD },
495 	{ "stctl", 0xb6, INSTR_RS_CCRD },
496 	{ "lctl", 0xb7, INSTR_RS_CCRD },
497 	{ "cs", 0xba, INSTR_RS_RRRD },
498 	{ "cds", 0xbb, INSTR_RS_RRRD },
499 	{ "clm", 0xbd, INSTR_RS_RURD },
500 	{ "stcm", 0xbe, INSTR_RS_RURD },
501 	{ "icm", 0xbf, INSTR_RS_RURD },
502 	{ "mvn", 0xd1, INSTR_SS_L0RDRD },
503 	{ "mvc", 0xd2, INSTR_SS_L0RDRD },
504 	{ "mvz", 0xd3, INSTR_SS_L0RDRD },
505 	{ "nc", 0xd4, INSTR_SS_L0RDRD },
506 	{ "clc", 0xd5, INSTR_SS_L0RDRD },
507 	{ "oc", 0xd6, INSTR_SS_L0RDRD },
508 	{ "xc", 0xd7, INSTR_SS_L0RDRD },
509 	{ "mvck", 0xd9, INSTR_SS_RRRDRD },
510 	{ "mvcp", 0xda, INSTR_SS_RRRDRD },
511 	{ "mvcs", 0xdb, INSTR_SS_RRRDRD },
512 	{ "tr", 0xdc, INSTR_SS_L0RDRD },
513 	{ "trt", 0xdd, INSTR_SS_L0RDRD },
514 	{ "ed", 0xde, INSTR_SS_L0RDRD },
515 	{ "edmk", 0xdf, INSTR_SS_L0RDRD },
516 	{ "pku", 0xe1, INSTR_SS_L0RDRD },
517 	{ "unpku", 0xe2, INSTR_SS_L0RDRD },
518 	{ "mvcin", 0xe8, INSTR_SS_L0RDRD },
519 	{ "pka", 0xe9, INSTR_SS_L0RDRD },
520 	{ "unpka", 0xea, INSTR_SS_L0RDRD },
521 	{ "plo", 0xee, INSTR_SS_RRRDRD2 },
522 	{ "srp", 0xf0, INSTR_SS_LIRDRD },
523 	{ "mvo", 0xf1, INSTR_SS_LLRDRD },
524 	{ "pack", 0xf2, INSTR_SS_LLRDRD },
525 	{ "unpk", 0xf3, INSTR_SS_LLRDRD },
526 	{ "zap", 0xf8, INSTR_SS_LLRDRD },
527 	{ "cp", 0xf9, INSTR_SS_LLRDRD },
528 	{ "ap", 0xfa, INSTR_SS_LLRDRD },
529 	{ "sp", 0xfb, INSTR_SS_LLRDRD },
530 	{ "mp", 0xfc, INSTR_SS_LLRDRD },
531 	{ "dp", 0xfd, INSTR_SS_LLRDRD },
532 	{ "", 0, INSTR_INVALID }
533 };
534 
535 static struct insn opcode_01[] = {
536 #ifdef CONFIG_64BIT
537 	{ "sam64", 0x0e, INSTR_E },
538 	{ "pfpo", 0x0a, INSTR_E },
539 	{ "ptff", 0x04, INSTR_E },
540 #endif
541 	{ "pr", 0x01, INSTR_E },
542 	{ "upt", 0x02, INSTR_E },
543 	{ "sckpf", 0x07, INSTR_E },
544 	{ "tam", 0x0b, INSTR_E },
545 	{ "sam24", 0x0c, INSTR_E },
546 	{ "sam31", 0x0d, INSTR_E },
547 	{ "trap2", 0xff, INSTR_E },
548 	{ "", 0, INSTR_INVALID }
549 };
550 
551 static struct insn opcode_a5[] = {
552 #ifdef CONFIG_64BIT
553 	{ "iihh", 0x00, INSTR_RI_RU },
554 	{ "iihl", 0x01, INSTR_RI_RU },
555 	{ "iilh", 0x02, INSTR_RI_RU },
556 	{ "iill", 0x03, INSTR_RI_RU },
557 	{ "nihh", 0x04, INSTR_RI_RU },
558 	{ "nihl", 0x05, INSTR_RI_RU },
559 	{ "nilh", 0x06, INSTR_RI_RU },
560 	{ "nill", 0x07, INSTR_RI_RU },
561 	{ "oihh", 0x08, INSTR_RI_RU },
562 	{ "oihl", 0x09, INSTR_RI_RU },
563 	{ "oilh", 0x0a, INSTR_RI_RU },
564 	{ "oill", 0x0b, INSTR_RI_RU },
565 	{ "llihh", 0x0c, INSTR_RI_RU },
566 	{ "llihl", 0x0d, INSTR_RI_RU },
567 	{ "llilh", 0x0e, INSTR_RI_RU },
568 	{ "llill", 0x0f, INSTR_RI_RU },
569 #endif
570 	{ "", 0, INSTR_INVALID }
571 };
572 
573 static struct insn opcode_a7[] = {
574 #ifdef CONFIG_64BIT
575 	{ "tmhh", 0x02, INSTR_RI_RU },
576 	{ "tmhl", 0x03, INSTR_RI_RU },
577 	{ "brctg", 0x07, INSTR_RI_RP },
578 	{ "lghi", 0x09, INSTR_RI_RI },
579 	{ "aghi", 0x0b, INSTR_RI_RI },
580 	{ "mghi", 0x0d, INSTR_RI_RI },
581 	{ "cghi", 0x0f, INSTR_RI_RI },
582 #endif
583 	{ "tmlh", 0x00, INSTR_RI_RU },
584 	{ "tmll", 0x01, INSTR_RI_RU },
585 	{ "brc", 0x04, INSTR_RI_UP },
586 	{ "bras", 0x05, INSTR_RI_RP },
587 	{ "brct", 0x06, INSTR_RI_RP },
588 	{ "lhi", 0x08, INSTR_RI_RI },
589 	{ "ahi", 0x0a, INSTR_RI_RI },
590 	{ "mhi", 0x0c, INSTR_RI_RI },
591 	{ "chi", 0x0e, INSTR_RI_RI },
592 	{ "", 0, INSTR_INVALID }
593 };
594 
595 static struct insn opcode_aa[] = {
596 #ifdef CONFIG_64BIT
597 	{ { 0, LONG_INSN_RINEXT }, 0x00, INSTR_RI_RI },
598 	{ "rion", 0x01, INSTR_RI_RI },
599 	{ "tric", 0x02, INSTR_RI_RI },
600 	{ "rioff", 0x03, INSTR_RI_RI },
601 	{ { 0, LONG_INSN_RIEMIT }, 0x04, INSTR_RI_RI },
602 #endif
603 	{ "", 0, INSTR_INVALID }
604 };
605 
606 static struct insn opcode_b2[] = {
607 #ifdef CONFIG_64BIT
608 	{ "sske", 0x2b, INSTR_RRF_M0RR },
609 	{ "stckf", 0x7c, INSTR_S_RD },
610 	{ "cu21", 0xa6, INSTR_RRF_M0RR },
611 	{ "cuutf", 0xa6, INSTR_RRF_M0RR },
612 	{ "cu12", 0xa7, INSTR_RRF_M0RR },
613 	{ "cutfu", 0xa7, INSTR_RRF_M0RR },
614 	{ "stfle", 0xb0, INSTR_S_RD },
615 	{ "lpswe", 0xb2, INSTR_S_RD },
616 	{ "srnmt", 0xb9, INSTR_S_RD },
617 	{ "lfas", 0xbd, INSTR_S_RD },
618 	{ "etndg", 0xec, INSTR_RRE_R0 },
619 	{ { 0, LONG_INSN_TABORT }, 0xfc, INSTR_S_RD },
620 	{ "tend", 0xf8, INSTR_S_RD },
621 #endif
622 	{ "stidp", 0x02, INSTR_S_RD },
623 	{ "sck", 0x04, INSTR_S_RD },
624 	{ "stck", 0x05, INSTR_S_RD },
625 	{ "sckc", 0x06, INSTR_S_RD },
626 	{ "stckc", 0x07, INSTR_S_RD },
627 	{ "spt", 0x08, INSTR_S_RD },
628 	{ "stpt", 0x09, INSTR_S_RD },
629 	{ "spka", 0x0a, INSTR_S_RD },
630 	{ "ipk", 0x0b, INSTR_S_00 },
631 	{ "ptlb", 0x0d, INSTR_S_00 },
632 	{ "spx", 0x10, INSTR_S_RD },
633 	{ "stpx", 0x11, INSTR_S_RD },
634 	{ "stap", 0x12, INSTR_S_RD },
635 	{ "sie", 0x14, INSTR_S_RD },
636 	{ "pc", 0x18, INSTR_S_RD },
637 	{ "sac", 0x19, INSTR_S_RD },
638 	{ "servc", 0x20, INSTR_RRE_RR },
639 	{ "cfc", 0x1a, INSTR_S_RD },
640 	{ "ipte", 0x21, INSTR_RRE_RR },
641 	{ "ipm", 0x22, INSTR_RRE_R0 },
642 	{ "ivsk", 0x23, INSTR_RRE_RR },
643 	{ "iac", 0x24, INSTR_RRE_R0 },
644 	{ "ssar", 0x25, INSTR_RRE_R0 },
645 	{ "epar", 0x26, INSTR_RRE_R0 },
646 	{ "esar", 0x27, INSTR_RRE_R0 },
647 	{ "pt", 0x28, INSTR_RRE_RR },
648 	{ "iske", 0x29, INSTR_RRE_RR },
649 	{ "rrbe", 0x2a, INSTR_RRE_RR },
650 	{ "sske", 0x2b, INSTR_RRE_RR },
651 	{ "tb", 0x2c, INSTR_RRE_0R },
652 	{ "dxr", 0x2d, INSTR_RRE_F0 },
653 	{ "pgin", 0x2e, INSTR_RRE_RR },
654 	{ "pgout", 0x2f, INSTR_RRE_RR },
655 	{ "csch", 0x30, INSTR_S_00 },
656 	{ "hsch", 0x31, INSTR_S_00 },
657 	{ "msch", 0x32, INSTR_S_RD },
658 	{ "ssch", 0x33, INSTR_S_RD },
659 	{ "stsch", 0x34, INSTR_S_RD },
660 	{ "tsch", 0x35, INSTR_S_RD },
661 	{ "tpi", 0x36, INSTR_S_RD },
662 	{ "sal", 0x37, INSTR_S_00 },
663 	{ "rsch", 0x38, INSTR_S_00 },
664 	{ "stcrw", 0x39, INSTR_S_RD },
665 	{ "stcps", 0x3a, INSTR_S_RD },
666 	{ "rchp", 0x3b, INSTR_S_00 },
667 	{ "schm", 0x3c, INSTR_S_00 },
668 	{ "bakr", 0x40, INSTR_RRE_RR },
669 	{ "cksm", 0x41, INSTR_RRE_RR },
670 	{ "sqdr", 0x44, INSTR_RRE_F0 },
671 	{ "sqer", 0x45, INSTR_RRE_F0 },
672 	{ "stura", 0x46, INSTR_RRE_RR },
673 	{ "msta", 0x47, INSTR_RRE_R0 },
674 	{ "palb", 0x48, INSTR_RRE_00 },
675 	{ "ereg", 0x49, INSTR_RRE_RR },
676 	{ "esta", 0x4a, INSTR_RRE_RR },
677 	{ "lura", 0x4b, INSTR_RRE_RR },
678 	{ "tar", 0x4c, INSTR_RRE_AR },
679 	{ "cpya", 0x4d, INSTR_RRE_AA },
680 	{ "sar", 0x4e, INSTR_RRE_AR },
681 	{ "ear", 0x4f, INSTR_RRE_RA },
682 	{ "csp", 0x50, INSTR_RRE_RR },
683 	{ "msr", 0x52, INSTR_RRE_RR },
684 	{ "mvpg", 0x54, INSTR_RRE_RR },
685 	{ "mvst", 0x55, INSTR_RRE_RR },
686 	{ "cuse", 0x57, INSTR_RRE_RR },
687 	{ "bsg", 0x58, INSTR_RRE_RR },
688 	{ "bsa", 0x5a, INSTR_RRE_RR },
689 	{ "clst", 0x5d, INSTR_RRE_RR },
690 	{ "srst", 0x5e, INSTR_RRE_RR },
691 	{ "cmpsc", 0x63, INSTR_RRE_RR },
692 	{ "siga", 0x74, INSTR_S_RD },
693 	{ "xsch", 0x76, INSTR_S_00 },
694 	{ "rp", 0x77, INSTR_S_RD },
695 	{ "stcke", 0x78, INSTR_S_RD },
696 	{ "sacf", 0x79, INSTR_S_RD },
697 	{ "spp", 0x80, INSTR_S_RD },
698 	{ "stsi", 0x7d, INSTR_S_RD },
699 	{ "srnm", 0x99, INSTR_S_RD },
700 	{ "stfpc", 0x9c, INSTR_S_RD },
701 	{ "lfpc", 0x9d, INSTR_S_RD },
702 	{ "tre", 0xa5, INSTR_RRE_RR },
703 	{ "cuutf", 0xa6, INSTR_RRE_RR },
704 	{ "cutfu", 0xa7, INSTR_RRE_RR },
705 	{ "stfl", 0xb1, INSTR_S_RD },
706 	{ "trap4", 0xff, INSTR_S_RD },
707 	{ "", 0, INSTR_INVALID }
708 };
709 
710 static struct insn opcode_b3[] = {
711 #ifdef CONFIG_64BIT
712 	{ "maylr", 0x38, INSTR_RRF_F0FF },
713 	{ "mylr", 0x39, INSTR_RRF_F0FF },
714 	{ "mayr", 0x3a, INSTR_RRF_F0FF },
715 	{ "myr", 0x3b, INSTR_RRF_F0FF },
716 	{ "mayhr", 0x3c, INSTR_RRF_F0FF },
717 	{ "myhr", 0x3d, INSTR_RRF_F0FF },
718 	{ "cegbr", 0xa4, INSTR_RRE_RR },
719 	{ "cdgbr", 0xa5, INSTR_RRE_RR },
720 	{ "cxgbr", 0xa6, INSTR_RRE_RR },
721 	{ "cgebr", 0xa8, INSTR_RRF_U0RF },
722 	{ "cgdbr", 0xa9, INSTR_RRF_U0RF },
723 	{ "cgxbr", 0xaa, INSTR_RRF_U0RF },
724 	{ "cfer", 0xb8, INSTR_RRF_U0RF },
725 	{ "cfdr", 0xb9, INSTR_RRF_U0RF },
726 	{ "cfxr", 0xba, INSTR_RRF_U0RF },
727 	{ "cegr", 0xc4, INSTR_RRE_RR },
728 	{ "cdgr", 0xc5, INSTR_RRE_RR },
729 	{ "cxgr", 0xc6, INSTR_RRE_RR },
730 	{ "cger", 0xc8, INSTR_RRF_U0RF },
731 	{ "cgdr", 0xc9, INSTR_RRF_U0RF },
732 	{ "cgxr", 0xca, INSTR_RRF_U0RF },
733 	{ "lpdfr", 0x70, INSTR_RRE_FF },
734 	{ "lndfr", 0x71, INSTR_RRE_FF },
735 	{ "cpsdr", 0x72, INSTR_RRF_F0FF2 },
736 	{ "lcdfr", 0x73, INSTR_RRE_FF },
737 	{ "ldgr", 0xc1, INSTR_RRE_FR },
738 	{ "lgdr", 0xcd, INSTR_RRE_RF },
739 	{ "adtr", 0xd2, INSTR_RRR_F0FF },
740 	{ "axtr", 0xda, INSTR_RRR_F0FF },
741 	{ "cdtr", 0xe4, INSTR_RRE_FF },
742 	{ "cxtr", 0xec, INSTR_RRE_FF },
743 	{ "kdtr", 0xe0, INSTR_RRE_FF },
744 	{ "kxtr", 0xe8, INSTR_RRE_FF },
745 	{ "cedtr", 0xf4, INSTR_RRE_FF },
746 	{ "cextr", 0xfc, INSTR_RRE_FF },
747 	{ "cdgtr", 0xf1, INSTR_RRE_FR },
748 	{ "cxgtr", 0xf9, INSTR_RRE_FR },
749 	{ "cdstr", 0xf3, INSTR_RRE_FR },
750 	{ "cxstr", 0xfb, INSTR_RRE_FR },
751 	{ "cdutr", 0xf2, INSTR_RRE_FR },
752 	{ "cxutr", 0xfa, INSTR_RRE_FR },
753 	{ "cgdtr", 0xe1, INSTR_RRF_U0RF },
754 	{ "cgxtr", 0xe9, INSTR_RRF_U0RF },
755 	{ "csdtr", 0xe3, INSTR_RRE_RF },
756 	{ "csxtr", 0xeb, INSTR_RRE_RF },
757 	{ "cudtr", 0xe2, INSTR_RRE_RF },
758 	{ "cuxtr", 0xea, INSTR_RRE_RF },
759 	{ "ddtr", 0xd1, INSTR_RRR_F0FF },
760 	{ "dxtr", 0xd9, INSTR_RRR_F0FF },
761 	{ "eedtr", 0xe5, INSTR_RRE_RF },
762 	{ "eextr", 0xed, INSTR_RRE_RF },
763 	{ "esdtr", 0xe7, INSTR_RRE_RF },
764 	{ "esxtr", 0xef, INSTR_RRE_RF },
765 	{ "iedtr", 0xf6, INSTR_RRF_F0FR },
766 	{ "iextr", 0xfe, INSTR_RRF_F0FR },
767 	{ "ltdtr", 0xd6, INSTR_RRE_FF },
768 	{ "ltxtr", 0xde, INSTR_RRE_FF },
769 	{ "fidtr", 0xd7, INSTR_RRF_UUFF },
770 	{ "fixtr", 0xdf, INSTR_RRF_UUFF },
771 	{ "ldetr", 0xd4, INSTR_RRF_0UFF },
772 	{ "lxdtr", 0xdc, INSTR_RRF_0UFF },
773 	{ "ledtr", 0xd5, INSTR_RRF_UUFF },
774 	{ "ldxtr", 0xdd, INSTR_RRF_UUFF },
775 	{ "mdtr", 0xd0, INSTR_RRR_F0FF },
776 	{ "mxtr", 0xd8, INSTR_RRR_F0FF },
777 	{ "qadtr", 0xf5, INSTR_RRF_FUFF },
778 	{ "qaxtr", 0xfd, INSTR_RRF_FUFF },
779 	{ "rrdtr", 0xf7, INSTR_RRF_FFRU },
780 	{ "rrxtr", 0xff, INSTR_RRF_FFRU },
781 	{ "sfasr", 0x85, INSTR_RRE_R0 },
782 	{ "sdtr", 0xd3, INSTR_RRR_F0FF },
783 	{ "sxtr", 0xdb, INSTR_RRR_F0FF },
784 #endif
785 	{ "lpebr", 0x00, INSTR_RRE_FF },
786 	{ "lnebr", 0x01, INSTR_RRE_FF },
787 	{ "ltebr", 0x02, INSTR_RRE_FF },
788 	{ "lcebr", 0x03, INSTR_RRE_FF },
789 	{ "ldebr", 0x04, INSTR_RRE_FF },
790 	{ "lxdbr", 0x05, INSTR_RRE_FF },
791 	{ "lxebr", 0x06, INSTR_RRE_FF },
792 	{ "mxdbr", 0x07, INSTR_RRE_FF },
793 	{ "kebr", 0x08, INSTR_RRE_FF },
794 	{ "cebr", 0x09, INSTR_RRE_FF },
795 	{ "aebr", 0x0a, INSTR_RRE_FF },
796 	{ "sebr", 0x0b, INSTR_RRE_FF },
797 	{ "mdebr", 0x0c, INSTR_RRE_FF },
798 	{ "debr", 0x0d, INSTR_RRE_FF },
799 	{ "maebr", 0x0e, INSTR_RRF_F0FF },
800 	{ "msebr", 0x0f, INSTR_RRF_F0FF },
801 	{ "lpdbr", 0x10, INSTR_RRE_FF },
802 	{ "lndbr", 0x11, INSTR_RRE_FF },
803 	{ "ltdbr", 0x12, INSTR_RRE_FF },
804 	{ "lcdbr", 0x13, INSTR_RRE_FF },
805 	{ "sqebr", 0x14, INSTR_RRE_FF },
806 	{ "sqdbr", 0x15, INSTR_RRE_FF },
807 	{ "sqxbr", 0x16, INSTR_RRE_FF },
808 	{ "meebr", 0x17, INSTR_RRE_FF },
809 	{ "kdbr", 0x18, INSTR_RRE_FF },
810 	{ "cdbr", 0x19, INSTR_RRE_FF },
811 	{ "adbr", 0x1a, INSTR_RRE_FF },
812 	{ "sdbr", 0x1b, INSTR_RRE_FF },
813 	{ "mdbr", 0x1c, INSTR_RRE_FF },
814 	{ "ddbr", 0x1d, INSTR_RRE_FF },
815 	{ "madbr", 0x1e, INSTR_RRF_F0FF },
816 	{ "msdbr", 0x1f, INSTR_RRF_F0FF },
817 	{ "lder", 0x24, INSTR_RRE_FF },
818 	{ "lxdr", 0x25, INSTR_RRE_FF },
819 	{ "lxer", 0x26, INSTR_RRE_FF },
820 	{ "maer", 0x2e, INSTR_RRF_F0FF },
821 	{ "mser", 0x2f, INSTR_RRF_F0FF },
822 	{ "sqxr", 0x36, INSTR_RRE_FF },
823 	{ "meer", 0x37, INSTR_RRE_FF },
824 	{ "madr", 0x3e, INSTR_RRF_F0FF },
825 	{ "msdr", 0x3f, INSTR_RRF_F0FF },
826 	{ "lpxbr", 0x40, INSTR_RRE_FF },
827 	{ "lnxbr", 0x41, INSTR_RRE_FF },
828 	{ "ltxbr", 0x42, INSTR_RRE_FF },
829 	{ "lcxbr", 0x43, INSTR_RRE_FF },
830 	{ "ledbr", 0x44, INSTR_RRE_FF },
831 	{ "ldxbr", 0x45, INSTR_RRE_FF },
832 	{ "lexbr", 0x46, INSTR_RRE_FF },
833 	{ "fixbr", 0x47, INSTR_RRF_U0FF },
834 	{ "kxbr", 0x48, INSTR_RRE_FF },
835 	{ "cxbr", 0x49, INSTR_RRE_FF },
836 	{ "axbr", 0x4a, INSTR_RRE_FF },
837 	{ "sxbr", 0x4b, INSTR_RRE_FF },
838 	{ "mxbr", 0x4c, INSTR_RRE_FF },
839 	{ "dxbr", 0x4d, INSTR_RRE_FF },
840 	{ "tbedr", 0x50, INSTR_RRF_U0FF },
841 	{ "tbdr", 0x51, INSTR_RRF_U0FF },
842 	{ "diebr", 0x53, INSTR_RRF_FUFF },
843 	{ "fiebr", 0x57, INSTR_RRF_U0FF },
844 	{ "thder", 0x58, INSTR_RRE_RR },
845 	{ "thdr", 0x59, INSTR_RRE_RR },
846 	{ "didbr", 0x5b, INSTR_RRF_FUFF },
847 	{ "fidbr", 0x5f, INSTR_RRF_U0FF },
848 	{ "lpxr", 0x60, INSTR_RRE_FF },
849 	{ "lnxr", 0x61, INSTR_RRE_FF },
850 	{ "ltxr", 0x62, INSTR_RRE_FF },
851 	{ "lcxr", 0x63, INSTR_RRE_FF },
852 	{ "lxr", 0x65, INSTR_RRE_RR },
853 	{ "lexr", 0x66, INSTR_RRE_FF },
854 	{ "fixr", 0x67, INSTR_RRF_U0FF },
855 	{ "cxr", 0x69, INSTR_RRE_FF },
856 	{ "lzer", 0x74, INSTR_RRE_R0 },
857 	{ "lzdr", 0x75, INSTR_RRE_R0 },
858 	{ "lzxr", 0x76, INSTR_RRE_R0 },
859 	{ "fier", 0x77, INSTR_RRF_U0FF },
860 	{ "fidr", 0x7f, INSTR_RRF_U0FF },
861 	{ "sfpc", 0x84, INSTR_RRE_RR_OPT },
862 	{ "efpc", 0x8c, INSTR_RRE_RR_OPT },
863 	{ "cefbr", 0x94, INSTR_RRE_RF },
864 	{ "cdfbr", 0x95, INSTR_RRE_RF },
865 	{ "cxfbr", 0x96, INSTR_RRE_RF },
866 	{ "cfebr", 0x98, INSTR_RRF_U0RF },
867 	{ "cfdbr", 0x99, INSTR_RRF_U0RF },
868 	{ "cfxbr", 0x9a, INSTR_RRF_U0RF },
869 	{ "cefr", 0xb4, INSTR_RRE_RF },
870 	{ "cdfr", 0xb5, INSTR_RRE_RF },
871 	{ "cxfr", 0xb6, INSTR_RRE_RF },
872 	{ "", 0, INSTR_INVALID }
873 };
874 
875 static struct insn opcode_b9[] = {
876 #ifdef CONFIG_64BIT
877 	{ "lpgr", 0x00, INSTR_RRE_RR },
878 	{ "lngr", 0x01, INSTR_RRE_RR },
879 	{ "ltgr", 0x02, INSTR_RRE_RR },
880 	{ "lcgr", 0x03, INSTR_RRE_RR },
881 	{ "lgr", 0x04, INSTR_RRE_RR },
882 	{ "lurag", 0x05, INSTR_RRE_RR },
883 	{ "lgbr", 0x06, INSTR_RRE_RR },
884 	{ "lghr", 0x07, INSTR_RRE_RR },
885 	{ "agr", 0x08, INSTR_RRE_RR },
886 	{ "sgr", 0x09, INSTR_RRE_RR },
887 	{ "algr", 0x0a, INSTR_RRE_RR },
888 	{ "slgr", 0x0b, INSTR_RRE_RR },
889 	{ "msgr", 0x0c, INSTR_RRE_RR },
890 	{ "dsgr", 0x0d, INSTR_RRE_RR },
891 	{ "eregg", 0x0e, INSTR_RRE_RR },
892 	{ "lrvgr", 0x0f, INSTR_RRE_RR },
893 	{ "lpgfr", 0x10, INSTR_RRE_RR },
894 	{ "lngfr", 0x11, INSTR_RRE_RR },
895 	{ "ltgfr", 0x12, INSTR_RRE_RR },
896 	{ "lcgfr", 0x13, INSTR_RRE_RR },
897 	{ "lgfr", 0x14, INSTR_RRE_RR },
898 	{ "llgfr", 0x16, INSTR_RRE_RR },
899 	{ "llgtr", 0x17, INSTR_RRE_RR },
900 	{ "agfr", 0x18, INSTR_RRE_RR },
901 	{ "sgfr", 0x19, INSTR_RRE_RR },
902 	{ "algfr", 0x1a, INSTR_RRE_RR },
903 	{ "slgfr", 0x1b, INSTR_RRE_RR },
904 	{ "msgfr", 0x1c, INSTR_RRE_RR },
905 	{ "dsgfr", 0x1d, INSTR_RRE_RR },
906 	{ "cgr", 0x20, INSTR_RRE_RR },
907 	{ "clgr", 0x21, INSTR_RRE_RR },
908 	{ "sturg", 0x25, INSTR_RRE_RR },
909 	{ "lbr", 0x26, INSTR_RRE_RR },
910 	{ "lhr", 0x27, INSTR_RRE_RR },
911 	{ "cgfr", 0x30, INSTR_RRE_RR },
912 	{ "clgfr", 0x31, INSTR_RRE_RR },
913 	{ "bctgr", 0x46, INSTR_RRE_RR },
914 	{ "ngr", 0x80, INSTR_RRE_RR },
915 	{ "ogr", 0x81, INSTR_RRE_RR },
916 	{ "xgr", 0x82, INSTR_RRE_RR },
917 	{ "flogr", 0x83, INSTR_RRE_RR },
918 	{ "llgcr", 0x84, INSTR_RRE_RR },
919 	{ "llghr", 0x85, INSTR_RRE_RR },
920 	{ "mlgr", 0x86, INSTR_RRE_RR },
921 	{ "dlgr", 0x87, INSTR_RRE_RR },
922 	{ "alcgr", 0x88, INSTR_RRE_RR },
923 	{ "slbgr", 0x89, INSTR_RRE_RR },
924 	{ "cspg", 0x8a, INSTR_RRE_RR },
925 	{ "idte", 0x8e, INSTR_RRF_R0RR },
926 	{ "llcr", 0x94, INSTR_RRE_RR },
927 	{ "llhr", 0x95, INSTR_RRE_RR },
928 	{ "esea", 0x9d, INSTR_RRE_R0 },
929 	{ "lptea", 0xaa, INSTR_RRF_RURR },
930 	{ "cu14", 0xb0, INSTR_RRF_M0RR },
931 	{ "cu24", 0xb1, INSTR_RRF_M0RR },
932 	{ "cu41", 0xb2, INSTR_RRF_M0RR },
933 	{ "cu42", 0xb3, INSTR_RRF_M0RR },
934 	{ "crt", 0x72, INSTR_RRF_U0RR },
935 	{ "cgrt", 0x60, INSTR_RRF_U0RR },
936 	{ "clrt", 0x73, INSTR_RRF_U0RR },
937 	{ "clgrt", 0x61, INSTR_RRF_U0RR },
938 	{ "ptf", 0xa2, INSTR_RRE_R0 },
939 	{ "pfmf", 0xaf, INSTR_RRE_RR },
940 	{ "trte", 0xbf, INSTR_RRF_M0RR },
941 	{ "trtre", 0xbd, INSTR_RRF_M0RR },
942 	{ "ahhhr", 0xc8, INSTR_RRF_R0RR2 },
943 	{ "shhhr", 0xc9, INSTR_RRF_R0RR2 },
944 	{ "alhhh", 0xca, INSTR_RRF_R0RR2 },
945 	{ "alhhl", 0xca, INSTR_RRF_R0RR2 },
946 	{ "slhhh", 0xcb, INSTR_RRF_R0RR2 },
947 	{ "chhr ", 0xcd, INSTR_RRE_RR },
948 	{ "clhhr", 0xcf, INSTR_RRE_RR },
949 	{ "ahhlr", 0xd8, INSTR_RRF_R0RR2 },
950 	{ "shhlr", 0xd9, INSTR_RRF_R0RR2 },
951 	{ "slhhl", 0xdb, INSTR_RRF_R0RR2 },
952 	{ "chlr", 0xdd, INSTR_RRE_RR },
953 	{ "clhlr", 0xdf, INSTR_RRE_RR },
954 	{ { 0, LONG_INSN_POPCNT }, 0xe1, INSTR_RRE_RR },
955 	{ "locgr", 0xe2, INSTR_RRF_M0RR },
956 	{ "ngrk", 0xe4, INSTR_RRF_R0RR2 },
957 	{ "ogrk", 0xe6, INSTR_RRF_R0RR2 },
958 	{ "xgrk", 0xe7, INSTR_RRF_R0RR2 },
959 	{ "agrk", 0xe8, INSTR_RRF_R0RR2 },
960 	{ "sgrk", 0xe9, INSTR_RRF_R0RR2 },
961 	{ "algrk", 0xea, INSTR_RRF_R0RR2 },
962 	{ "slgrk", 0xeb, INSTR_RRF_R0RR2 },
963 	{ "locr", 0xf2, INSTR_RRF_M0RR },
964 	{ "nrk", 0xf4, INSTR_RRF_R0RR2 },
965 	{ "ork", 0xf6, INSTR_RRF_R0RR2 },
966 	{ "xrk", 0xf7, INSTR_RRF_R0RR2 },
967 	{ "ark", 0xf8, INSTR_RRF_R0RR2 },
968 	{ "srk", 0xf9, INSTR_RRF_R0RR2 },
969 	{ "alrk", 0xfa, INSTR_RRF_R0RR2 },
970 	{ "slrk", 0xfb, INSTR_RRF_R0RR2 },
971 #endif
972 	{ "kmac", 0x1e, INSTR_RRE_RR },
973 	{ "lrvr", 0x1f, INSTR_RRE_RR },
974 	{ "km", 0x2e, INSTR_RRE_RR },
975 	{ "kmc", 0x2f, INSTR_RRE_RR },
976 	{ "kimd", 0x3e, INSTR_RRE_RR },
977 	{ "klmd", 0x3f, INSTR_RRE_RR },
978 	{ "epsw", 0x8d, INSTR_RRE_RR },
979 	{ "trtt", 0x90, INSTR_RRE_RR },
980 	{ "trtt", 0x90, INSTR_RRF_M0RR },
981 	{ "trto", 0x91, INSTR_RRE_RR },
982 	{ "trto", 0x91, INSTR_RRF_M0RR },
983 	{ "trot", 0x92, INSTR_RRE_RR },
984 	{ "trot", 0x92, INSTR_RRF_M0RR },
985 	{ "troo", 0x93, INSTR_RRE_RR },
986 	{ "troo", 0x93, INSTR_RRF_M0RR },
987 	{ "mlr", 0x96, INSTR_RRE_RR },
988 	{ "dlr", 0x97, INSTR_RRE_RR },
989 	{ "alcr", 0x98, INSTR_RRE_RR },
990 	{ "slbr", 0x99, INSTR_RRE_RR },
991 	{ "", 0, INSTR_INVALID }
992 };
993 
994 static struct insn opcode_c0[] = {
995 #ifdef CONFIG_64BIT
996 	{ "lgfi", 0x01, INSTR_RIL_RI },
997 	{ "xihf", 0x06, INSTR_RIL_RU },
998 	{ "xilf", 0x07, INSTR_RIL_RU },
999 	{ "iihf", 0x08, INSTR_RIL_RU },
1000 	{ "iilf", 0x09, INSTR_RIL_RU },
1001 	{ "nihf", 0x0a, INSTR_RIL_RU },
1002 	{ "nilf", 0x0b, INSTR_RIL_RU },
1003 	{ "oihf", 0x0c, INSTR_RIL_RU },
1004 	{ "oilf", 0x0d, INSTR_RIL_RU },
1005 	{ "llihf", 0x0e, INSTR_RIL_RU },
1006 	{ "llilf", 0x0f, INSTR_RIL_RU },
1007 #endif
1008 	{ "larl", 0x00, INSTR_RIL_RP },
1009 	{ "brcl", 0x04, INSTR_RIL_UP },
1010 	{ "brasl", 0x05, INSTR_RIL_RP },
1011 	{ "", 0, INSTR_INVALID }
1012 };
1013 
1014 static struct insn opcode_c2[] = {
1015 #ifdef CONFIG_64BIT
1016 	{ "slgfi", 0x04, INSTR_RIL_RU },
1017 	{ "slfi", 0x05, INSTR_RIL_RU },
1018 	{ "agfi", 0x08, INSTR_RIL_RI },
1019 	{ "afi", 0x09, INSTR_RIL_RI },
1020 	{ "algfi", 0x0a, INSTR_RIL_RU },
1021 	{ "alfi", 0x0b, INSTR_RIL_RU },
1022 	{ "cgfi", 0x0c, INSTR_RIL_RI },
1023 	{ "cfi", 0x0d, INSTR_RIL_RI },
1024 	{ "clgfi", 0x0e, INSTR_RIL_RU },
1025 	{ "clfi", 0x0f, INSTR_RIL_RU },
1026 	{ "msfi", 0x01, INSTR_RIL_RI },
1027 	{ "msgfi", 0x00, INSTR_RIL_RI },
1028 #endif
1029 	{ "", 0, INSTR_INVALID }
1030 };
1031 
1032 static struct insn opcode_c4[] = {
1033 #ifdef CONFIG_64BIT
1034 	{ "lrl", 0x0d, INSTR_RIL_RP },
1035 	{ "lgrl", 0x08, INSTR_RIL_RP },
1036 	{ "lgfrl", 0x0c, INSTR_RIL_RP },
1037 	{ "lhrl", 0x05, INSTR_RIL_RP },
1038 	{ "lghrl", 0x04, INSTR_RIL_RP },
1039 	{ { 0, LONG_INSN_LLGFRL }, 0x0e, INSTR_RIL_RP },
1040 	{ "llhrl", 0x02, INSTR_RIL_RP },
1041 	{ { 0, LONG_INSN_LLGHRL }, 0x06, INSTR_RIL_RP },
1042 	{ "strl", 0x0f, INSTR_RIL_RP },
1043 	{ "stgrl", 0x0b, INSTR_RIL_RP },
1044 	{ "sthrl", 0x07, INSTR_RIL_RP },
1045 #endif
1046 	{ "", 0, INSTR_INVALID }
1047 };
1048 
1049 static struct insn opcode_c6[] = {
1050 #ifdef CONFIG_64BIT
1051 	{ "crl", 0x0d, INSTR_RIL_RP },
1052 	{ "cgrl", 0x08, INSTR_RIL_RP },
1053 	{ "cgfrl", 0x0c, INSTR_RIL_RP },
1054 	{ "chrl", 0x05, INSTR_RIL_RP },
1055 	{ "cghrl", 0x04, INSTR_RIL_RP },
1056 	{ "clrl", 0x0f, INSTR_RIL_RP },
1057 	{ "clgrl", 0x0a, INSTR_RIL_RP },
1058 	{ { 0, LONG_INSN_CLGFRL }, 0x0e, INSTR_RIL_RP },
1059 	{ "clhrl", 0x07, INSTR_RIL_RP },
1060 	{ { 0, LONG_INSN_CLGHRL }, 0x06, INSTR_RIL_RP },
1061 	{ "pfdrl", 0x02, INSTR_RIL_UP },
1062 	{ "exrl", 0x00, INSTR_RIL_RP },
1063 #endif
1064 	{ "", 0, INSTR_INVALID }
1065 };
1066 
1067 static struct insn opcode_c8[] = {
1068 #ifdef CONFIG_64BIT
1069 	{ "mvcos", 0x00, INSTR_SSF_RRDRD },
1070 	{ "ectg", 0x01, INSTR_SSF_RRDRD },
1071 	{ "csst", 0x02, INSTR_SSF_RRDRD },
1072 	{ "lpd", 0x04, INSTR_SSF_RRDRD2 },
1073 	{ "lpdg ", 0x05, INSTR_SSF_RRDRD2 },
1074 #endif
1075 	{ "", 0, INSTR_INVALID }
1076 };
1077 
1078 static struct insn opcode_cc[] = {
1079 #ifdef CONFIG_64BIT
1080 	{ "brcth", 0x06, INSTR_RIL_RP },
1081 	{ "aih", 0x08, INSTR_RIL_RI },
1082 	{ "alsih", 0x0a, INSTR_RIL_RI },
1083 	{ "alsih", 0x0b, INSTR_RIL_RI },
1084 	{ "cih", 0x0d, INSTR_RIL_RI },
1085 	{ "clih ", 0x0f, INSTR_RIL_RI },
1086 #endif
1087 	{ "", 0, INSTR_INVALID }
1088 };
1089 
1090 static struct insn opcode_e3[] = {
1091 #ifdef CONFIG_64BIT
1092 	{ "ltg", 0x02, INSTR_RXY_RRRD },
1093 	{ "lrag", 0x03, INSTR_RXY_RRRD },
1094 	{ "lg", 0x04, INSTR_RXY_RRRD },
1095 	{ "cvby", 0x06, INSTR_RXY_RRRD },
1096 	{ "ag", 0x08, INSTR_RXY_RRRD },
1097 	{ "sg", 0x09, INSTR_RXY_RRRD },
1098 	{ "alg", 0x0a, INSTR_RXY_RRRD },
1099 	{ "slg", 0x0b, INSTR_RXY_RRRD },
1100 	{ "msg", 0x0c, INSTR_RXY_RRRD },
1101 	{ "dsg", 0x0d, INSTR_RXY_RRRD },
1102 	{ "cvbg", 0x0e, INSTR_RXY_RRRD },
1103 	{ "lrvg", 0x0f, INSTR_RXY_RRRD },
1104 	{ "lt", 0x12, INSTR_RXY_RRRD },
1105 	{ "lray", 0x13, INSTR_RXY_RRRD },
1106 	{ "lgf", 0x14, INSTR_RXY_RRRD },
1107 	{ "lgh", 0x15, INSTR_RXY_RRRD },
1108 	{ "llgf", 0x16, INSTR_RXY_RRRD },
1109 	{ "llgt", 0x17, INSTR_RXY_RRRD },
1110 	{ "agf", 0x18, INSTR_RXY_RRRD },
1111 	{ "sgf", 0x19, INSTR_RXY_RRRD },
1112 	{ "algf", 0x1a, INSTR_RXY_RRRD },
1113 	{ "slgf", 0x1b, INSTR_RXY_RRRD },
1114 	{ "msgf", 0x1c, INSTR_RXY_RRRD },
1115 	{ "dsgf", 0x1d, INSTR_RXY_RRRD },
1116 	{ "cg", 0x20, INSTR_RXY_RRRD },
1117 	{ "clg", 0x21, INSTR_RXY_RRRD },
1118 	{ "stg", 0x24, INSTR_RXY_RRRD },
1119 	{ "cvdy", 0x26, INSTR_RXY_RRRD },
1120 	{ "cvdg", 0x2e, INSTR_RXY_RRRD },
1121 	{ "strvg", 0x2f, INSTR_RXY_RRRD },
1122 	{ "cgf", 0x30, INSTR_RXY_RRRD },
1123 	{ "clgf", 0x31, INSTR_RXY_RRRD },
1124 	{ "strvh", 0x3f, INSTR_RXY_RRRD },
1125 	{ "bctg", 0x46, INSTR_RXY_RRRD },
1126 	{ "sty", 0x50, INSTR_RXY_RRRD },
1127 	{ "msy", 0x51, INSTR_RXY_RRRD },
1128 	{ "ny", 0x54, INSTR_RXY_RRRD },
1129 	{ "cly", 0x55, INSTR_RXY_RRRD },
1130 	{ "oy", 0x56, INSTR_RXY_RRRD },
1131 	{ "xy", 0x57, INSTR_RXY_RRRD },
1132 	{ "ly", 0x58, INSTR_RXY_RRRD },
1133 	{ "cy", 0x59, INSTR_RXY_RRRD },
1134 	{ "ay", 0x5a, INSTR_RXY_RRRD },
1135 	{ "sy", 0x5b, INSTR_RXY_RRRD },
1136 	{ "aly", 0x5e, INSTR_RXY_RRRD },
1137 	{ "sly", 0x5f, INSTR_RXY_RRRD },
1138 	{ "sthy", 0x70, INSTR_RXY_RRRD },
1139 	{ "lay", 0x71, INSTR_RXY_RRRD },
1140 	{ "stcy", 0x72, INSTR_RXY_RRRD },
1141 	{ "icy", 0x73, INSTR_RXY_RRRD },
1142 	{ "lb", 0x76, INSTR_RXY_RRRD },
1143 	{ "lgb", 0x77, INSTR_RXY_RRRD },
1144 	{ "lhy", 0x78, INSTR_RXY_RRRD },
1145 	{ "chy", 0x79, INSTR_RXY_RRRD },
1146 	{ "ahy", 0x7a, INSTR_RXY_RRRD },
1147 	{ "shy", 0x7b, INSTR_RXY_RRRD },
1148 	{ "ng", 0x80, INSTR_RXY_RRRD },
1149 	{ "og", 0x81, INSTR_RXY_RRRD },
1150 	{ "xg", 0x82, INSTR_RXY_RRRD },
1151 	{ "mlg", 0x86, INSTR_RXY_RRRD },
1152 	{ "dlg", 0x87, INSTR_RXY_RRRD },
1153 	{ "alcg", 0x88, INSTR_RXY_RRRD },
1154 	{ "slbg", 0x89, INSTR_RXY_RRRD },
1155 	{ "stpq", 0x8e, INSTR_RXY_RRRD },
1156 	{ "lpq", 0x8f, INSTR_RXY_RRRD },
1157 	{ "llgc", 0x90, INSTR_RXY_RRRD },
1158 	{ "llgh", 0x91, INSTR_RXY_RRRD },
1159 	{ "llc", 0x94, INSTR_RXY_RRRD },
1160 	{ "llh", 0x95, INSTR_RXY_RRRD },
1161 	{ "cgh", 0x34, INSTR_RXY_RRRD },
1162 	{ "laey", 0x75, INSTR_RXY_RRRD },
1163 	{ "ltgf", 0x32, INSTR_RXY_RRRD },
1164 	{ "mfy", 0x5c, INSTR_RXY_RRRD },
1165 	{ "mhy", 0x7c, INSTR_RXY_RRRD },
1166 	{ "pfd", 0x36, INSTR_RXY_URRD },
1167 	{ "lbh", 0xc0, INSTR_RXY_RRRD },
1168 	{ "llch", 0xc2, INSTR_RXY_RRRD },
1169 	{ "stch", 0xc3, INSTR_RXY_RRRD },
1170 	{ "lhh", 0xc4, INSTR_RXY_RRRD },
1171 	{ "llhh", 0xc6, INSTR_RXY_RRRD },
1172 	{ "sthh", 0xc7, INSTR_RXY_RRRD },
1173 	{ "lfh", 0xca, INSTR_RXY_RRRD },
1174 	{ "stfh", 0xcb, INSTR_RXY_RRRD },
1175 	{ "chf", 0xcd, INSTR_RXY_RRRD },
1176 	{ "clhf", 0xcf, INSTR_RXY_RRRD },
1177 	{ "ntstg", 0x25, INSTR_RXY_RRRD },
1178 #endif
1179 	{ "lrv", 0x1e, INSTR_RXY_RRRD },
1180 	{ "lrvh", 0x1f, INSTR_RXY_RRRD },
1181 	{ "strv", 0x3e, INSTR_RXY_RRRD },
1182 	{ "ml", 0x96, INSTR_RXY_RRRD },
1183 	{ "dl", 0x97, INSTR_RXY_RRRD },
1184 	{ "alc", 0x98, INSTR_RXY_RRRD },
1185 	{ "slb", 0x99, INSTR_RXY_RRRD },
1186 	{ "", 0, INSTR_INVALID }
1187 };
1188 
1189 static struct insn opcode_e5[] = {
1190 #ifdef CONFIG_64BIT
1191 	{ "strag", 0x02, INSTR_SSE_RDRD },
1192 	{ "chhsi", 0x54, INSTR_SIL_RDI },
1193 	{ "chsi", 0x5c, INSTR_SIL_RDI },
1194 	{ "cghsi", 0x58, INSTR_SIL_RDI },
1195 	{ { 0, LONG_INSN_CLHHSI }, 0x55, INSTR_SIL_RDU },
1196 	{ { 0, LONG_INSN_CLFHSI }, 0x5d, INSTR_SIL_RDU },
1197 	{ { 0, LONG_INSN_CLGHSI }, 0x59, INSTR_SIL_RDU },
1198 	{ "mvhhi", 0x44, INSTR_SIL_RDI },
1199 	{ "mvhi", 0x4c, INSTR_SIL_RDI },
1200 	{ "mvghi", 0x48, INSTR_SIL_RDI },
1201 	{ { 0, LONG_INSN_TBEGIN }, 0x60, INSTR_SIL_RDU },
1202 	{ { 0, LONG_INSN_TBEGINC }, 0x61, INSTR_SIL_RDU },
1203 #endif
1204 	{ "lasp", 0x00, INSTR_SSE_RDRD },
1205 	{ "tprot", 0x01, INSTR_SSE_RDRD },
1206 	{ "mvcsk", 0x0e, INSTR_SSE_RDRD },
1207 	{ "mvcdk", 0x0f, INSTR_SSE_RDRD },
1208 	{ "", 0, INSTR_INVALID }
1209 };
1210 
1211 static struct insn opcode_eb[] = {
1212 #ifdef CONFIG_64BIT
1213 	{ "lmg", 0x04, INSTR_RSY_RRRD },
1214 	{ "srag", 0x0a, INSTR_RSY_RRRD },
1215 	{ "slag", 0x0b, INSTR_RSY_RRRD },
1216 	{ "srlg", 0x0c, INSTR_RSY_RRRD },
1217 	{ "sllg", 0x0d, INSTR_RSY_RRRD },
1218 	{ "tracg", 0x0f, INSTR_RSY_RRRD },
1219 	{ "csy", 0x14, INSTR_RSY_RRRD },
1220 	{ "rllg", 0x1c, INSTR_RSY_RRRD },
1221 	{ "clmh", 0x20, INSTR_RSY_RURD },
1222 	{ "clmy", 0x21, INSTR_RSY_RURD },
1223 	{ "stmg", 0x24, INSTR_RSY_RRRD },
1224 	{ "stctg", 0x25, INSTR_RSY_CCRD },
1225 	{ "stmh", 0x26, INSTR_RSY_RRRD },
1226 	{ "stcmh", 0x2c, INSTR_RSY_RURD },
1227 	{ "stcmy", 0x2d, INSTR_RSY_RURD },
1228 	{ "lctlg", 0x2f, INSTR_RSY_CCRD },
1229 	{ "csg", 0x30, INSTR_RSY_RRRD },
1230 	{ "cdsy", 0x31, INSTR_RSY_RRRD },
1231 	{ "cdsg", 0x3e, INSTR_RSY_RRRD },
1232 	{ "bxhg", 0x44, INSTR_RSY_RRRD },
1233 	{ "bxleg", 0x45, INSTR_RSY_RRRD },
1234 	{ "tmy", 0x51, INSTR_SIY_URD },
1235 	{ "mviy", 0x52, INSTR_SIY_URD },
1236 	{ "niy", 0x54, INSTR_SIY_URD },
1237 	{ "cliy", 0x55, INSTR_SIY_URD },
1238 	{ "oiy", 0x56, INSTR_SIY_URD },
1239 	{ "xiy", 0x57, INSTR_SIY_URD },
1240 	{ "lric", 0x60, INSTR_RSY_RDRM },
1241 	{ "stric", 0x61, INSTR_RSY_RDRM },
1242 	{ "mric", 0x62, INSTR_RSY_RDRM },
1243 	{ "icmh", 0x80, INSTR_RSE_RURD },
1244 	{ "icmh", 0x80, INSTR_RSY_RURD },
1245 	{ "icmy", 0x81, INSTR_RSY_RURD },
1246 	{ "clclu", 0x8f, INSTR_RSY_RRRD },
1247 	{ "stmy", 0x90, INSTR_RSY_RRRD },
1248 	{ "lmh", 0x96, INSTR_RSY_RRRD },
1249 	{ "lmy", 0x98, INSTR_RSY_RRRD },
1250 	{ "lamy", 0x9a, INSTR_RSY_AARD },
1251 	{ "stamy", 0x9b, INSTR_RSY_AARD },
1252 	{ "asi", 0x6a, INSTR_SIY_IRD },
1253 	{ "agsi", 0x7a, INSTR_SIY_IRD },
1254 	{ "alsi", 0x6e, INSTR_SIY_IRD },
1255 	{ "algsi", 0x7e, INSTR_SIY_IRD },
1256 	{ "ecag", 0x4c, INSTR_RSY_RRRD },
1257 	{ "srak", 0xdc, INSTR_RSY_RRRD },
1258 	{ "slak", 0xdd, INSTR_RSY_RRRD },
1259 	{ "srlk", 0xde, INSTR_RSY_RRRD },
1260 	{ "sllk", 0xdf, INSTR_RSY_RRRD },
1261 	{ "locg", 0xe2, INSTR_RSY_RDRM },
1262 	{ "stocg", 0xe3, INSTR_RSY_RDRM },
1263 	{ "lang", 0xe4, INSTR_RSY_RRRD },
1264 	{ "laog", 0xe6, INSTR_RSY_RRRD },
1265 	{ "laxg", 0xe7, INSTR_RSY_RRRD },
1266 	{ "laag", 0xe8, INSTR_RSY_RRRD },
1267 	{ "laalg", 0xea, INSTR_RSY_RRRD },
1268 	{ "loc", 0xf2, INSTR_RSY_RDRM },
1269 	{ "stoc", 0xf3, INSTR_RSY_RDRM },
1270 	{ "lan", 0xf4, INSTR_RSY_RRRD },
1271 	{ "lao", 0xf6, INSTR_RSY_RRRD },
1272 	{ "lax", 0xf7, INSTR_RSY_RRRD },
1273 	{ "laa", 0xf8, INSTR_RSY_RRRD },
1274 	{ "laal", 0xfa, INSTR_RSY_RRRD },
1275 #endif
1276 	{ "rll", 0x1d, INSTR_RSY_RRRD },
1277 	{ "mvclu", 0x8e, INSTR_RSY_RRRD },
1278 	{ "tp", 0xc0, INSTR_RSL_R0RD },
1279 	{ "", 0, INSTR_INVALID }
1280 };
1281 
1282 static struct insn opcode_ec[] = {
1283 #ifdef CONFIG_64BIT
1284 	{ "brxhg", 0x44, INSTR_RIE_RRP },
1285 	{ "brxlg", 0x45, INSTR_RIE_RRP },
1286 	{ "crb", 0xf6, INSTR_RRS_RRRDU },
1287 	{ "cgrb", 0xe4, INSTR_RRS_RRRDU },
1288 	{ "crj", 0x76, INSTR_RIE_RRPU },
1289 	{ "cgrj", 0x64, INSTR_RIE_RRPU },
1290 	{ "cib", 0xfe, INSTR_RIS_RURDI },
1291 	{ "cgib", 0xfc, INSTR_RIS_RURDI },
1292 	{ "cij", 0x7e, INSTR_RIE_RUPI },
1293 	{ "cgij", 0x7c, INSTR_RIE_RUPI },
1294 	{ "cit", 0x72, INSTR_RIE_R0IU },
1295 	{ "cgit", 0x70, INSTR_RIE_R0IU },
1296 	{ "clrb", 0xf7, INSTR_RRS_RRRDU },
1297 	{ "clgrb", 0xe5, INSTR_RRS_RRRDU },
1298 	{ "clrj", 0x77, INSTR_RIE_RRPU },
1299 	{ "clgrj", 0x65, INSTR_RIE_RRPU },
1300 	{ "clib", 0xff, INSTR_RIS_RURDU },
1301 	{ "clgib", 0xfd, INSTR_RIS_RURDU },
1302 	{ "clij", 0x7f, INSTR_RIE_RUPU },
1303 	{ "clgij", 0x7d, INSTR_RIE_RUPU },
1304 	{ "clfit", 0x73, INSTR_RIE_R0UU },
1305 	{ "clgit", 0x71, INSTR_RIE_R0UU },
1306 	{ "rnsbg", 0x54, INSTR_RIE_RRUUU },
1307 	{ "rxsbg", 0x57, INSTR_RIE_RRUUU },
1308 	{ "rosbg", 0x56, INSTR_RIE_RRUUU },
1309 	{ "risbg", 0x55, INSTR_RIE_RRUUU },
1310 	{ { 0, LONG_INSN_RISBLG }, 0x51, INSTR_RIE_RRUUU },
1311 	{ { 0, LONG_INSN_RISBHG }, 0x5D, INSTR_RIE_RRUUU },
1312 	{ "ahik", 0xd8, INSTR_RIE_RRI0 },
1313 	{ "aghik", 0xd9, INSTR_RIE_RRI0 },
1314 	{ { 0, LONG_INSN_ALHSIK }, 0xda, INSTR_RIE_RRI0 },
1315 	{ { 0, LONG_INSN_ALGHSIK }, 0xdb, INSTR_RIE_RRI0 },
1316 #endif
1317 	{ "", 0, INSTR_INVALID }
1318 };
1319 
1320 static struct insn opcode_ed[] = {
1321 #ifdef CONFIG_64BIT
1322 	{ "mayl", 0x38, INSTR_RXF_FRRDF },
1323 	{ "myl", 0x39, INSTR_RXF_FRRDF },
1324 	{ "may", 0x3a, INSTR_RXF_FRRDF },
1325 	{ "my", 0x3b, INSTR_RXF_FRRDF },
1326 	{ "mayh", 0x3c, INSTR_RXF_FRRDF },
1327 	{ "myh", 0x3d, INSTR_RXF_FRRDF },
1328 	{ "ley", 0x64, INSTR_RXY_FRRD },
1329 	{ "ldy", 0x65, INSTR_RXY_FRRD },
1330 	{ "stey", 0x66, INSTR_RXY_FRRD },
1331 	{ "stdy", 0x67, INSTR_RXY_FRRD },
1332 	{ "sldt", 0x40, INSTR_RXF_FRRDF },
1333 	{ "slxt", 0x48, INSTR_RXF_FRRDF },
1334 	{ "srdt", 0x41, INSTR_RXF_FRRDF },
1335 	{ "srxt", 0x49, INSTR_RXF_FRRDF },
1336 	{ "tdcet", 0x50, INSTR_RXE_FRRD },
1337 	{ "tdcdt", 0x54, INSTR_RXE_FRRD },
1338 	{ "tdcxt", 0x58, INSTR_RXE_FRRD },
1339 	{ "tdget", 0x51, INSTR_RXE_FRRD },
1340 	{ "tdgdt", 0x55, INSTR_RXE_FRRD },
1341 	{ "tdgxt", 0x59, INSTR_RXE_FRRD },
1342 #endif
1343 	{ "ldeb", 0x04, INSTR_RXE_FRRD },
1344 	{ "lxdb", 0x05, INSTR_RXE_FRRD },
1345 	{ "lxeb", 0x06, INSTR_RXE_FRRD },
1346 	{ "mxdb", 0x07, INSTR_RXE_FRRD },
1347 	{ "keb", 0x08, INSTR_RXE_FRRD },
1348 	{ "ceb", 0x09, INSTR_RXE_FRRD },
1349 	{ "aeb", 0x0a, INSTR_RXE_FRRD },
1350 	{ "seb", 0x0b, INSTR_RXE_FRRD },
1351 	{ "mdeb", 0x0c, INSTR_RXE_FRRD },
1352 	{ "deb", 0x0d, INSTR_RXE_FRRD },
1353 	{ "maeb", 0x0e, INSTR_RXF_FRRDF },
1354 	{ "mseb", 0x0f, INSTR_RXF_FRRDF },
1355 	{ "tceb", 0x10, INSTR_RXE_FRRD },
1356 	{ "tcdb", 0x11, INSTR_RXE_FRRD },
1357 	{ "tcxb", 0x12, INSTR_RXE_FRRD },
1358 	{ "sqeb", 0x14, INSTR_RXE_FRRD },
1359 	{ "sqdb", 0x15, INSTR_RXE_FRRD },
1360 	{ "meeb", 0x17, INSTR_RXE_FRRD },
1361 	{ "kdb", 0x18, INSTR_RXE_FRRD },
1362 	{ "cdb", 0x19, INSTR_RXE_FRRD },
1363 	{ "adb", 0x1a, INSTR_RXE_FRRD },
1364 	{ "sdb", 0x1b, INSTR_RXE_FRRD },
1365 	{ "mdb", 0x1c, INSTR_RXE_FRRD },
1366 	{ "ddb", 0x1d, INSTR_RXE_FRRD },
1367 	{ "madb", 0x1e, INSTR_RXF_FRRDF },
1368 	{ "msdb", 0x1f, INSTR_RXF_FRRDF },
1369 	{ "lde", 0x24, INSTR_RXE_FRRD },
1370 	{ "lxd", 0x25, INSTR_RXE_FRRD },
1371 	{ "lxe", 0x26, INSTR_RXE_FRRD },
1372 	{ "mae", 0x2e, INSTR_RXF_FRRDF },
1373 	{ "mse", 0x2f, INSTR_RXF_FRRDF },
1374 	{ "sqe", 0x34, INSTR_RXE_FRRD },
1375 	{ "sqd", 0x35, INSTR_RXE_FRRD },
1376 	{ "mee", 0x37, INSTR_RXE_FRRD },
1377 	{ "mad", 0x3e, INSTR_RXF_FRRDF },
1378 	{ "msd", 0x3f, INSTR_RXF_FRRDF },
1379 	{ "", 0, INSTR_INVALID }
1380 };
1381 
1382 /* Extracts an operand value from an instruction.  */
1383 static unsigned int extract_operand(unsigned char *code,
1384 				    const struct operand *operand)
1385 {
1386 	unsigned int val;
1387 	int bits;
1388 
1389 	/* Extract fragments of the operand byte for byte.  */
1390 	code += operand->shift / 8;
1391 	bits = (operand->shift & 7) + operand->bits;
1392 	val = 0;
1393 	do {
1394 		val <<= 8;
1395 		val |= (unsigned int) *code++;
1396 		bits -= 8;
1397 	} while (bits > 0);
1398 	val >>= -bits;
1399 	val &= ((1U << (operand->bits - 1)) << 1) - 1;
1400 
1401 	/* Check for special long displacement case.  */
1402 	if (operand->bits == 20 && operand->shift == 20)
1403 		val = (val & 0xff) << 12 | (val & 0xfff00) >> 8;
1404 
1405 	/* Sign extend value if the operand is signed or pc relative.  */
1406 	if ((operand->flags & (OPERAND_SIGNED | OPERAND_PCREL)) &&
1407 	    (val & (1U << (operand->bits - 1))))
1408 		val |= (-1U << (operand->bits - 1)) << 1;
1409 
1410 	/* Double value if the operand is pc relative.	*/
1411 	if (operand->flags & OPERAND_PCREL)
1412 		val <<= 1;
1413 
1414 	/* Length x in an instructions has real length x + 1.  */
1415 	if (operand->flags & OPERAND_LENGTH)
1416 		val++;
1417 	return val;
1418 }
1419 
1420 static inline int insn_length(unsigned char code)
1421 {
1422 	return ((((int) code + 64) >> 7) + 1) << 1;
1423 }
1424 
1425 static struct insn *find_insn(unsigned char *code)
1426 {
1427 	unsigned char opfrag = code[1];
1428 	unsigned char opmask;
1429 	struct insn *table;
1430 
1431 	switch (code[0]) {
1432 	case 0x01:
1433 		table = opcode_01;
1434 		break;
1435 	case 0xa5:
1436 		table = opcode_a5;
1437 		break;
1438 	case 0xa7:
1439 		table = opcode_a7;
1440 		break;
1441 	case 0xaa:
1442 		table = opcode_aa;
1443 		break;
1444 	case 0xb2:
1445 		table = opcode_b2;
1446 		break;
1447 	case 0xb3:
1448 		table = opcode_b3;
1449 		break;
1450 	case 0xb9:
1451 		table = opcode_b9;
1452 		break;
1453 	case 0xc0:
1454 		table = opcode_c0;
1455 		break;
1456 	case 0xc2:
1457 		table = opcode_c2;
1458 		break;
1459 	case 0xc4:
1460 		table = opcode_c4;
1461 		break;
1462 	case 0xc6:
1463 		table = opcode_c6;
1464 		break;
1465 	case 0xc8:
1466 		table = opcode_c8;
1467 		break;
1468 	case 0xcc:
1469 		table = opcode_cc;
1470 		break;
1471 	case 0xe3:
1472 		table = opcode_e3;
1473 		opfrag = code[5];
1474 		break;
1475 	case 0xe5:
1476 		table = opcode_e5;
1477 		break;
1478 	case 0xeb:
1479 		table = opcode_eb;
1480 		opfrag = code[5];
1481 		break;
1482 	case 0xec:
1483 		table = opcode_ec;
1484 		opfrag = code[5];
1485 		break;
1486 	case 0xed:
1487 		table = opcode_ed;
1488 		opfrag = code[5];
1489 		break;
1490 	default:
1491 		table = opcode;
1492 		opfrag = code[0];
1493 		break;
1494 	}
1495 	while (table->format != INSTR_INVALID) {
1496 		opmask = formats[table->format][0];
1497 		if (table->opfrag == (opfrag & opmask))
1498 			return table;
1499 		table++;
1500 	}
1501 	return NULL;
1502 }
1503 
1504 /**
1505  * insn_to_mnemonic - decode an s390 instruction
1506  * @instruction: instruction to decode
1507  * @buf: buffer to fill with mnemonic
1508  *
1509  * Decode the instruction at @instruction and store the corresponding
1510  * mnemonic into @buf.
1511  * @buf is left unchanged if the instruction could not be decoded.
1512  * Returns:
1513  *  %0 on success, %-ENOENT if the instruction was not found.
1514  */
1515 int insn_to_mnemonic(unsigned char *instruction, char buf[8])
1516 {
1517 	struct insn *insn;
1518 
1519 	insn = find_insn(instruction);
1520 	if (!insn)
1521 		return -ENOENT;
1522 	if (insn->name[0] == '\0')
1523 		snprintf(buf, sizeof(buf), "%s",
1524 			 long_insn_name[(int) insn->name[1]]);
1525 	else
1526 		snprintf(buf, sizeof(buf), "%.5s", insn->name);
1527 	return 0;
1528 }
1529 EXPORT_SYMBOL_GPL(insn_to_mnemonic);
1530 
1531 static int print_insn(char *buffer, unsigned char *code, unsigned long addr)
1532 {
1533 	struct insn *insn;
1534 	const unsigned char *ops;
1535 	const struct operand *operand;
1536 	unsigned int value;
1537 	char separator;
1538 	char *ptr;
1539 	int i;
1540 
1541 	ptr = buffer;
1542 	insn = find_insn(code);
1543 	if (insn) {
1544 		if (insn->name[0] == '\0')
1545 			ptr += sprintf(ptr, "%s\t",
1546 				       long_insn_name[(int) insn->name[1]]);
1547 		else
1548 			ptr += sprintf(ptr, "%.5s\t", insn->name);
1549 		/* Extract the operands. */
1550 		separator = 0;
1551 		for (ops = formats[insn->format] + 1, i = 0;
1552 		     *ops != 0 && i < 6; ops++, i++) {
1553 			operand = operands + *ops;
1554 			value = extract_operand(code, operand);
1555 			if ((operand->flags & OPERAND_INDEX)  && value == 0)
1556 				continue;
1557 			if ((operand->flags & OPERAND_BASE) &&
1558 			    value == 0 && separator == '(') {
1559 				separator = ',';
1560 				continue;
1561 			}
1562 			if (separator)
1563 				ptr += sprintf(ptr, "%c", separator);
1564 			if (operand->flags & OPERAND_GPR)
1565 				ptr += sprintf(ptr, "%%r%i", value);
1566 			else if (operand->flags & OPERAND_FPR)
1567 				ptr += sprintf(ptr, "%%f%i", value);
1568 			else if (operand->flags & OPERAND_AR)
1569 				ptr += sprintf(ptr, "%%a%i", value);
1570 			else if (operand->flags & OPERAND_CR)
1571 				ptr += sprintf(ptr, "%%c%i", value);
1572 			else if (operand->flags & OPERAND_PCREL)
1573 				ptr += sprintf(ptr, "%lx", (signed int) value
1574 								      + addr);
1575 			else if (operand->flags & OPERAND_SIGNED)
1576 				ptr += sprintf(ptr, "%i", value);
1577 			else
1578 				ptr += sprintf(ptr, "%u", value);
1579 			if (operand->flags & OPERAND_DISP)
1580 				separator = '(';
1581 			else if (operand->flags & OPERAND_BASE) {
1582 				ptr += sprintf(ptr, ")");
1583 				separator = ',';
1584 			} else
1585 				separator = ',';
1586 		}
1587 	} else
1588 		ptr += sprintf(ptr, "unknown");
1589 	return (int) (ptr - buffer);
1590 }
1591 
1592 void show_code(struct pt_regs *regs)
1593 {
1594 	char *mode = user_mode(regs) ? "User" : "Krnl";
1595 	unsigned char code[64];
1596 	char buffer[64], *ptr;
1597 	mm_segment_t old_fs;
1598 	unsigned long addr;
1599 	int start, end, opsize, hops, i;
1600 
1601 	/* Get a snapshot of the 64 bytes surrounding the fault address. */
1602 	old_fs = get_fs();
1603 	set_fs(user_mode(regs) ? USER_DS : KERNEL_DS);
1604 	for (start = 32; start && regs->psw.addr >= 34 - start; start -= 2) {
1605 		addr = regs->psw.addr - 34 + start;
1606 		if (__copy_from_user(code + start - 2,
1607 				     (char __user *) addr, 2))
1608 			break;
1609 	}
1610 	for (end = 32; end < 64; end += 2) {
1611 		addr = regs->psw.addr + end - 32;
1612 		if (__copy_from_user(code + end,
1613 				     (char __user *) addr, 2))
1614 			break;
1615 	}
1616 	set_fs(old_fs);
1617 	/* Code snapshot useable ? */
1618 	if ((regs->psw.addr & 1) || start >= end) {
1619 		printk("%s Code: Bad PSW.\n", mode);
1620 		return;
1621 	}
1622 	/* Find a starting point for the disassembly. */
1623 	while (start < 32) {
1624 		for (i = 0, hops = 0; start + i < 32 && hops < 3; hops++) {
1625 			if (!find_insn(code + start + i))
1626 				break;
1627 			i += insn_length(code[start + i]);
1628 		}
1629 		if (start + i == 32)
1630 			/* Looks good, sequence ends at PSW. */
1631 			break;
1632 		start += 2;
1633 	}
1634 	/* Decode the instructions. */
1635 	ptr = buffer;
1636 	ptr += sprintf(ptr, "%s Code:", mode);
1637 	hops = 0;
1638 	while (start < end && hops < 8) {
1639 		opsize = insn_length(code[start]);
1640 		if  (start + opsize == 32)
1641 			*ptr++ = '#';
1642 		else if (start == 32)
1643 			*ptr++ = '>';
1644 		else
1645 			*ptr++ = ' ';
1646 		addr = regs->psw.addr + start - 32;
1647 		ptr += sprintf(ptr, ONELONG, addr);
1648 		if (start + opsize >= end)
1649 			break;
1650 		for (i = 0; i < opsize; i++)
1651 			ptr += sprintf(ptr, "%02x", code[start + i]);
1652 		*ptr++ = '\t';
1653 		if (i < 6)
1654 			*ptr++ = '\t';
1655 		ptr += print_insn(ptr, code + start, addr);
1656 		start += opsize;
1657 		printk(buffer);
1658 		ptr = buffer;
1659 		ptr += sprintf(ptr, "\n          ");
1660 		hops++;
1661 	}
1662 	printk("\n");
1663 }
1664 
1665 void print_fn_code(unsigned char *code, unsigned long len)
1666 {
1667 	char buffer[64], *ptr;
1668 	int opsize, i;
1669 
1670 	while (len) {
1671 		ptr = buffer;
1672 		opsize = insn_length(*code);
1673 		ptr += sprintf(ptr, "%p: ", code);
1674 		for (i = 0; i < opsize; i++)
1675 			ptr += sprintf(ptr, "%02x", code[i]);
1676 		*ptr++ = '\t';
1677 		if (i < 4)
1678 			*ptr++ = '\t';
1679 		ptr += print_insn(ptr, code, (unsigned long) code);
1680 		*ptr++ = '\n';
1681 		*ptr++ = 0;
1682 		printk(buffer);
1683 		code += opsize;
1684 		len -= opsize;
1685 	}
1686 }
1687