[S390] Improved oops output.

This patch adds two improvements to the oops output. First it adds an
additional line after the PSW which decodes the different fields of it.
Second a disassembler is added that decodes the instructions surrounding
the faulting PSW. The output of a test oops now looks like this:

kernel BUG at init/main.c:419
illegal operation: 0001 [#1]
CPU:    0    Not tainted
Process swapper (pid: 0, task: 0000000000464968, ksp: 00000000004be000)
Krnl PSW : 0700000180000000 00000000000120b6 (rest_init+0x36/0x38)
           R:0 T:1 IO:1 EX:1 Key:0 M:0 W:0 P:0 AS:0 CC:0 PM:0 EA:3
Krnl GPRS: 0000000000000003 00000000004ba017 0000000000000022 0000000000000001
           000000000003a5f6 0000000000000000 00000000004be6a8 0000000000000000
           0000000000000000 00000000004b8200 0000000000003a50 0000000000008000
           0000000000516368 000000000033d008 00000000000120b2 00000000004bdee0
Krnl Code: 00000000000120a6: e3e0f0980024       stg     %r14,152(%r15)
           00000000000120ac: c0e500014296       brasl   %r14,3a5d8
           00000000000120b2: a7f40001           brc     15,120b4
          >00000000000120b6: 0707               bcr     0,%r7
           00000000000120b8: eb7ff0500024       stmg    %r7,%r15,80(%r15)
           00000000000120be: c0d000195825       larl    %r13,33d108
           00000000000120c4: a7f13f00           tmll    %r15,16128
           00000000000120c8: a7840001           brc     8,120ca
Call Trace:
([<00000000000120b2>] rest_init+0x32/0x38)
 [<00000000004be614>] start_kernel+0x37c/0x410
 [<0000000000012020>] _ehead+0x20/0x80

Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>

4 files changed, 1297 insertions, 39 deletions

diff --git a/arch/s390/kernel/Makefile b/arch/s390/kernel/Makefile
index 5492d25d7d69..3195d375bd51 100644
--- a/arch/s390/kernel/Makefile
+++ b/arch/s390/kernel/Makefile
@@ -6,7 +6,7 @@ EXTRA_AFLAGS	:= -traditional
 
 obj-y	:=  bitmap.o traps.o time.o process.o base.o early.o \
             setup.o sys_s390.o ptrace.o signal.o cpcmd.o ebcdic.o \
-	    semaphore.o s390_ext.o debug.o irq.o ipl.o
+	    semaphore.o s390_ext.o debug.o irq.o ipl.o dis.o
 
 obj-y	+= $(if $(CONFIG_64BIT),entry64.o,entry.o)
 obj-y	+= $(if $(CONFIG_64BIT),reipl64.o,reipl.o)
diff --git a/arch/s390/kernel/dis.c b/arch/s390/kernel/dis.c
new file mode 100644
index 000000000000..dabaf98943d0
--- /dev/null
+++ b/arch/s390/kernel/dis.c
@@ -0,0 +1,1278 @@
+/*
+ * arch/s390/kernel/dis.c
+ *
+ * Disassemble s390 instructions.
+ *
+ * Copyright IBM Corp. 2007
+ * Author(s): Martin Schwidefsky (schwidefsky@de.ibm.com),
+ */
+
+#include <linux/sched.h>
+#include <linux/kernel.h>
+#include <linux/string.h>
+#include <linux/errno.h>
+#include <linux/ptrace.h>
+#include <linux/timer.h>
+#include <linux/mm.h>
+#include <linux/smp.h>
+#include <linux/smp_lock.h>
+#include <linux/init.h>
+#include <linux/interrupt.h>
+#include <linux/delay.h>
+#include <linux/module.h>
+#include <linux/kallsyms.h>
+#include <linux/reboot.h>
+#include <linux/kprobes.h>
+
+#include <asm/system.h>
+#include <asm/uaccess.h>
+#include <asm/io.h>
+#include <asm/atomic.h>
+#include <asm/mathemu.h>
+#include <asm/cpcmd.h>
+#include <asm/s390_ext.h>
+#include <asm/lowcore.h>
+#include <asm/debug.h>
+#include <asm/kdebug.h>
+
+#ifndef CONFIG_64BIT
+#define ONELONG "%08lx: "
+#else /* CONFIG_64BIT */
+#define ONELONG "%016lx: "
+#endif /* CONFIG_64BIT */
+
+#define OPERAND_GPR	0x1	/* Operand printed as %rx */
+#define OPERAND_FPR	0x2	/* Operand printed as %fx */
+#define OPERAND_AR	0x4	/* Operand printed as %ax */
+#define OPERAND_CR	0x8	/* Operand printed as %cx */
+#define OPERAND_DISP	0x10	/* Operand printed as displacement */
+#define OPERAND_BASE	0x20	/* Operand printed as base register */
+#define OPERAND_INDEX	0x40	/* Operand printed as index register */
+#define OPERAND_PCREL	0x80	/* Operand printed as pc-relative symbol */
+#define OPERAND_SIGNED	0x100	/* Operand printed as signed value */
+#define OPERAND_LENGTH	0x200	/* Operand printed as length (+1) */
+
+enum {
+	UNUSED,	/* Indicates the end of the operand list */
+	R_8,	/* GPR starting at position 8 */
+	R_12,	/* GPR starting at position 12 */
+	R_16,	/* GPR starting at position 16 */
+	R_20,	/* GPR starting at position 20 */
+	R_24,	/* GPR starting at position 24 */
+	R_28,	/* GPR starting at position 28 */
+	R_32,	/* GPR starting at position 32 */
+	F_8,	/* FPR starting at position 8 */
+	F_12,	/* FPR starting at position 12 */
+	F_16,	/* FPR starting at position 16 */
+	F_20,	/* FPR starting at position 16 */
+	F_24,	/* FPR starting at position 24 */
+	F_28,	/* FPR starting at position 28 */
+	F_32,	/* FPR starting at position 32 */
+	A_8,	/* Access reg. starting at position 8 */
+	A_12,	/* Access reg. starting at position 12 */
+	A_24,	/* Access reg. starting at position 24 */
+	A_28,	/* Access reg. starting at position 28 */
+	C_8,	/* Control reg. starting at position 8 */
+	C_12,	/* Control reg. starting at position 12 */
+	B_16,	/* Base register starting at position 16 */
+	B_32,	/* Base register starting at position 32 */
+	X_12,	/* Index register starting at position 12 */
+	D_20,	/* Displacement starting at position 20 */
+	D_36,	/* Displacement starting at position 36 */
+	D20_20,	/* 20 bit displacement starting at 20 */
+	L4_8,	/* 4 bit length starting at position 8 */
+	L4_12,	/* 4 bit length starting at position 12 */
+	L8_8,	/* 8 bit length starting at position 8 */
+	U4_8,	/* 4 bit unsigned value starting at 8 */
+	U4_12,	/* 4 bit unsigned value starting at 12 */
+	U4_16,	/* 4 bit unsigned value starting at 16 */
+	U4_20,	/* 4 bit unsigned value starting at 20 */
+	U8_8,	/* 8 bit unsigned value starting at 8 */
+	U8_16,	/* 8 bit unsigned value starting at 16 */
+	I16_16,	/* 16 bit signed value starting at 16 */
+	U16_16,	/* 16 bit unsigned value starting at 16 */
+	J16_16,	/* PC relative jump offset at 16 */
+	J32_16,	/* PC relative long offset at 16 */
+	I32_16,	/* 32 bit signed value starting at 16 */
+	U32_16,	/* 32 bit unsigned value starting at 16 */
+	M_16,	/* 4 bit optional mask starting at 16 */
+	RO_28,	/* optional GPR starting at position 28 */
+};
+
+/*
+ * Enumeration of the different instruction formats.
+ * For details consult the principles of operation.
+ */
+enum {
+	INSTR_INVALID,
+	INSTR_E, INSTR_RIE_RRP, INSTR_RIL_RI, INSTR_RIL_RP, INSTR_RIL_RU,
+	INSTR_RIL_UP, INSTR_RI_RI, INSTR_RI_RP, INSTR_RI_RU, INSTR_RI_UP,
+	INSTR_RRE_00, INSTR_RRE_0R, INSTR_RRE_AA, INSTR_RRE_AR, INSTR_RRE_F0,
+	INSTR_RRE_FF, INSTR_RRE_R0, INSTR_RRE_RA, INSTR_RRE_RF, INSTR_RRE_RR,
+	INSTR_RRE_RR_OPT, INSTR_RRF_F0FF, INSTR_RRF_FUFF, INSTR_RRF_M0RR,
+	INSTR_RRF_R0RR, INSTR_RRF_RURR, INSTR_RRF_U0FF, INSTR_RRF_U0RF,
+	INSTR_RR_FF, INSTR_RR_R0, INSTR_RR_RR, INSTR_RR_U0, INSTR_RR_UR,
+	INSTR_RSE_CCRD, INSTR_RSE_RRRD, INSTR_RSE_RURD, INSTR_RSI_RRP,
+	INSTR_RSL_R0RD, INSTR_RSY_AARD, INSTR_RSY_CCRD, INSTR_RSY_RRRD,
+	INSTR_RSY_RURD, INSTR_RS_AARD, INSTR_RS_CCRD, INSTR_RS_R0RD,
+	INSTR_RS_RRRD, INSTR_RS_RURD, INSTR_RXE_FRRD, INSTR_RXE_RRRD,
+	INSTR_RXF_FRRDF, INSTR_RXY_FRRD, INSTR_RXY_RRRD, INSTR_RX_FRRD,
+	INSTR_RX_RRRD, INSTR_RX_URRD, INSTR_SIY_URD, INSTR_SI_URD,
+	INSTR_SSE_RDRD, INSTR_SSF_RRDRD, INSTR_SS_L0RDRD, INSTR_SS_LIRDRD,
+	INSTR_SS_LLRDRD, INSTR_SS_RRRDRD, INSTR_SS_RRRDRD2, INSTR_SS_RRRDRD3,
+	INSTR_S_00, INSTR_S_RD,
+};
+
+struct operand {
+	int bits;		/* The number of bits in the operand. */
+	int shift;		/* The number of bits to shift. */
+	int flags;		/* One bit syntax flags. */
+};
+
+struct insn {
+	const char name[5];
+	unsigned char opfrag;
+	unsigned char format;
+};
+
+static const struct operand operands[] =
+{
+	[UNUSED]  = { 0, 0, 0 },
+	[R_8]	 = {  4,  8, OPERAND_GPR },
+	[R_12]	 = {  4, 12, OPERAND_GPR },
+	[R_16]	 = {  4, 16, OPERAND_GPR },
+	[R_20]	 = {  4, 20, OPERAND_GPR },
+	[R_24]	 = {  4, 24, OPERAND_GPR },
+	[R_28]	 = {  4, 28, OPERAND_GPR },
+	[R_32]	 = {  4, 32, OPERAND_GPR },
+	[F_8]	 = {  4,  8, OPERAND_FPR },
+	[F_12]	 = {  4, 12, OPERAND_FPR },
+	[F_16]	 = {  4, 16, OPERAND_FPR },
+	[F_20]	 = {  4, 16, OPERAND_FPR },
+	[F_24]	 = {  4, 24, OPERAND_FPR },
+	[F_28]	 = {  4, 28, OPERAND_FPR },
+	[F_32]	 = {  4, 32, OPERAND_FPR },
+	[A_8]	 = {  4,  8, OPERAND_AR },
+	[A_12]	 = {  4, 12, OPERAND_AR },
+	[A_24]	 = {  4, 24, OPERAND_AR },
+	[A_28]	 = {  4, 28, OPERAND_AR },
+	[C_8]	 = {  4,  8, OPERAND_CR },
+	[C_12]	 = {  4, 12, OPERAND_CR },
+	[B_16]	 = {  4, 16, OPERAND_BASE | OPERAND_GPR },
+	[B_32]	 = {  4, 32, OPERAND_BASE | OPERAND_GPR },
+	[X_12]	 = {  4, 12, OPERAND_INDEX | OPERAND_GPR },
+	[D_20]	 = { 12, 20, OPERAND_DISP },
+	[D_36]	 = { 12, 36, OPERAND_DISP },
+	[D20_20] = { 20, 20, OPERAND_DISP | OPERAND_SIGNED },
+	[L4_8]	 = {  4,  8, OPERAND_LENGTH },
+	[L4_12]  = {  4, 12, OPERAND_LENGTH },
+	[L8_8]	 = {  8,  8, OPERAND_LENGTH },
+	[U4_8]	 = {  4,  8, 0 },
+	[U4_12]  = {  4, 12, 0 },
+	[U4_16]  = {  4, 16, 0 },
+	[U4_20]  = {  4, 20, 0 },
+	[U8_8]	 = {  8,  8, 0 },
+	[U8_16]  = {  8, 16, 0 },
+	[I16_16] = { 16, 16, OPERAND_SIGNED },
+	[U16_16] = { 16, 16, 0 },
+	[J16_16] = { 16, 16, OPERAND_PCREL },
+	[J32_16] = { 32, 16, OPERAND_PCREL },
+	[I32_16] = { 32, 16, OPERAND_SIGNED },
+	[U32_16] = { 32, 16, 0 },
+	[M_16]	 = {  4, 16, 0 },
+	[RO_28]  = {  4, 28, OPERAND_GPR }
+};
+
+static const unsigned char formats[][7] = {
+	[INSTR_E]	  = { 0xff, 0,0,0,0,0,0 },	       /* e.g. pr    */
+	[INSTR_RIE_RRP]	  = { 0xff, R_8,R_12,J16_16,0,0,0 },   /* e.g. brxhg */
+	[INSTR_RIL_RP]	  = { 0x0f, R_8,J32_16,0,0,0,0 },      /* e.g. brasl */
+	[INSTR_RIL_UP]	  = { 0x0f, U4_8,J32_16,0,0,0,0 },     /* e.g. brcl  */
+	[INSTR_RIL_RI]	  = { 0x0f, R_8,I32_16,0,0,0,0 },      /* e.g. afi   */
+	[INSTR_RIL_RU]	  = { 0x0f, R_8,U32_16,0,0,0,0 },      /* e.g. alfi  */
+	[INSTR_RI_RI]	  = { 0x0f, R_8,I16_16,0,0,0,0 },      /* e.g. ahi   */
+	[INSTR_RI_RP]	  = { 0x0f, R_8,J16_16,0,0,0,0 },      /* e.g. brct  */
+	[INSTR_RI_RU]	  = { 0x0f, R_8,U16_16,0,0,0,0 },      /* e.g. tml   */
+	[INSTR_RI_UP]	  = { 0x0f, U4_8,J16_16,0,0,0,0 },     /* e.g. brc   */
+	[INSTR_RRE_00]	  = { 0xff, 0,0,0,0,0,0 },	       /* e.g. palb  */
+	[INSTR_RRE_0R]	  = { 0xff, R_28,0,0,0,0,0 },	       /* e.g. tb    */
+	[INSTR_RRE_AA]	  = { 0xff, A_24,A_28,0,0,0,0 },       /* e.g. cpya  */
+	[INSTR_RRE_AR]	  = { 0xff, A_24,R_28,0,0,0,0 },       /* e.g. sar   */
+	[INSTR_RRE_F0]	  = { 0xff, F_24,0,0,0,0,0 },	       /* e.g. sqer  */
+	[INSTR_RRE_FF]	  = { 0xff, F_24,F_28,0,0,0,0 },       /* e.g. debr  */
+	[INSTR_RRE_R0]	  = { 0xff, R_24,0,0,0,0,0 },	       /* e.g. ipm   */
+	[INSTR_RRE_RA]	  = { 0xff, R_24,A_28,0,0,0,0 },       /* e.g. ear   */
+	[INSTR_RRE_RF]	  = { 0xff, R_24,F_28,0,0,0,0 },       /* e.g. cefbr */
+	[INSTR_RRE_RR]	  = { 0xff, R_24,R_28,0,0,0,0 },       /* e.g. lura  */
+	[INSTR_RRE_RR_OPT]= { 0xff, R_24,RO_28,0,0,0,0 },      /* efpc, sfpc */
+	[INSTR_RRF_F0FF]  = { 0xff, F_16,F_24,F_28,0,0,0 },    /* e.g. madbr */
+	[INSTR_RRF_FUFF]  = { 0xff, F_24,F_16,F_28,U4_20,0,0 },/* e.g. didbr */
+	[INSTR_RRF_RURR]  = { 0xff, R_24,R_28,R_16,U4_20,0,0 },/* e.g. .insn */
+	[INSTR_RRF_R0RR]  = { 0xff, R_24,R_28,R_16,0,0,0 },    /* e.g. idte  */
+	[INSTR_RRF_U0FF]  = { 0xff, F_24,U4_16,F_28,0,0,0 },   /* e.g. fixr  */
+	[INSTR_RRF_U0RF]  = { 0xff, R_24,U4_16,F_28,0,0,0 },   /* e.g. cfebr */
+	[INSTR_RRF_M0RR]  = { 0xff, R_24,R_28,M_16,0,0,0 },    /* e.g. sske  */
+	[INSTR_RR_FF]	  = { 0xff, F_8,F_12,0,0,0,0 },        /* e.g. adr   */
+	[INSTR_RR_R0]	  = { 0xff, R_8, 0,0,0,0,0 },	       /* e.g. spm   */
+	[INSTR_RR_RR]	  = { 0xff, R_8,R_12,0,0,0,0 },        /* e.g. lr    */
+	[INSTR_RR_U0]	  = { 0xff, U8_8, 0,0,0,0,0 },	       /* e.g. svc   */
+	[INSTR_RR_UR]	  = { 0xff, U4_8,R_12,0,0,0,0 },       /* e.g. bcr   */
+	[INSTR_RSE_RRRD]  = { 0xff, R_8,R_12,D_20,B_16,0,0 },  /* e.g. lmh   */
+	[INSTR_RSE_CCRD]  = { 0xff, C_8,C_12,D_20,B_16,0,0 },  /* e.g. lmh   */
+	[INSTR_RSE_RURD]  = { 0xff, R_8,U4_12,D_20,B_16,0,0 }, /* e.g. icmh  */
+	[INSTR_RSL_R0RD]  = { 0xff, R_8,D_20,B_16,0,0,0 },     /* e.g. tp    */
+	[INSTR_RSI_RRP]	  = { 0xff, R_8,R_12,J16_16,0,0,0 },   /* e.g. brxh  */
+	[INSTR_RSY_RRRD]  = { 0xff, R_8,R_12,D20_20,B_16,0,0 },/* e.g. stmy  */
+	[INSTR_RSY_RURD]  = { 0xff, R_8,U4_12,D20_20,B_16,0,0 },
+							       /* e.g. icmh  */
+	[INSTR_RSY_AARD]  = { 0xff, A_8,A_12,D20_20,B_16,0,0 },/* e.g. lamy  */
+	[INSTR_RSY_CCRD]  = { 0xff, C_8,C_12,D20_20,B_16,0,0 },/* e.g. lamy  */
+	[INSTR_RS_AARD]	  = { 0xff, A_8,A_12,D_20,B_16,0,0 },  /* e.g. lam   */
+	[INSTR_RS_CCRD]	  = { 0xff, C_8,C_12,D_20,B_16,0,0 },  /* e.g. lctl  */
+	[INSTR_RS_R0RD]	  = { 0xff, R_8,D_20,B_16,0,0,0 },     /* e.g. sll   */
+	[INSTR_RS_RRRD]	  = { 0xff, R_8,R_12,D_20,B_16,0,0 },  /* e.g. cs    */
+	[INSTR_RS_RURD]	  = { 0xff, R_8,U4_12,D_20,B_16,0,0 }, /* e.g. icm   */
+	[INSTR_RXE_FRRD]  = { 0xff, F_8,D_20,X_12,B_16,0,0 },  /* e.g. axbr  */
+	[INSTR_RXE_RRRD]  = { 0xff, R_8,D_20,X_12,B_16,0,0 },  /* e.g. lg    */
+	[INSTR_RXF_FRRDF] = { 0xff, F_32,F_8,D_20,X_12,B_16,0 },
+							       /* e.g. madb  */
+	[INSTR_RXY_RRRD]  = { 0xff, R_8,D20_20,X_12,B_16,0,0 },/* e.g. ly    */
+	[INSTR_RXY_FRRD]  = { 0xff, F_8,D20_20,X_12,B_16,0,0 },/* e.g. ley   */
+	[INSTR_RX_FRRD]	  = { 0xff, F_8,D_20,X_12,B_16,0,0 },  /* e.g. ae    */
+	[INSTR_RX_RRRD]	  = { 0xff, R_8,D_20,X_12,B_16,0,0 },  /* e.g. l     */
+	[INSTR_RX_URRD]	  = { 0x00, U4_8,D_20,X_12,B_16,0,0 }, /* e.g. bc    */
+	[INSTR_SI_URD]	  = { 0x00, D_20,B_16,U8_8,0,0,0 },    /* e.g. cli   */
+	[INSTR_SIY_URD]	  = { 0xff, D20_20,B_16,U8_8,0,0,0 },  /* e.g. tmy   */
+	[INSTR_SSE_RDRD]  = { 0xff, D_20,B_16,D_36,B_32,0,0 }, /* e.g. mvsdk */
+	[INSTR_SS_L0RDRD] = { 0xff, D_20,L8_8,B_16,D_36,B_32,0 },
+							       /* e.g. mvc   */
+	[INSTR_SS_LIRDRD] = { 0xff, D_20,L4_8,B_16,D_36,B_32,U4_12 },
+							       /* e.g. srp   */
+	[INSTR_SS_LLRDRD] = { 0xff, D_20,L4_8,B_16,D_36,L4_12,B_32 },
+							       /* e.g. pack  */
+	[INSTR_SS_RRRDRD] = { 0xff, D_20,R_8,B_16,D_36,B_32,R_12 },
+							       /* e.g. mvck  */
+	[INSTR_SS_RRRDRD2]= { 0xff, R_8,D_20,B_16,R_12,D_36,B_32 },
+							       /* e.g. plo   */
+	[INSTR_SS_RRRDRD3]= { 0xff, R_8,R_12,D_20,B_16,D_36,B_32 },
+							       /* e.g. lmd   */
+	[INSTR_S_00]	  = { 0xff, 0,0,0,0,0,0 },	       /* e.g. hsch  */
+	[INSTR_S_RD]	  = { 0xff, D_20,B_16,0,0,0,0 },       /* e.g. lpsw  */
+	[INSTR_SSF_RRDRD] = { 0x00, D_20,B_16,D_36,B_32,R_8,0 },
+							       /* e.g. mvcos */
+};
+
+static struct insn opcode[] = {
+#ifdef CONFIG_64BIT
+	{ "lmd", 0xef, INSTR_SS_RRRDRD3 },
+#endif
+	{ "spm", 0x04, INSTR_RR_R0 },
+	{ "balr", 0x05, INSTR_RR_RR },
+	{ "bctr", 0x06, INSTR_RR_RR },
+	{ "bcr", 0x07, INSTR_RR_UR },
+	{ "svc", 0x0a, INSTR_RR_U0 },
+	{ "bsm", 0x0b, INSTR_RR_RR },
+	{ "bassm", 0x0c, INSTR_RR_RR },
+	{ "basr", 0x0d, INSTR_RR_RR },
+	{ "mvcl", 0x0e, INSTR_RR_RR },
+	{ "clcl", 0x0f, INSTR_RR_RR },
+	{ "lpr", 0x10, INSTR_RR_RR },
+	{ "lnr", 0x11, INSTR_RR_RR },
+	{ "ltr", 0x12, INSTR_RR_RR },
+	{ "lcr", 0x13, INSTR_RR_RR },
+	{ "nr", 0x14, INSTR_RR_RR },
+	{ "clr", 0x15, INSTR_RR_RR },
+	{ "or", 0x16, INSTR_RR_RR },
+	{ "xr", 0x17, INSTR_RR_RR },
+	{ "lr", 0x18, INSTR_RR_RR },
+	{ "cr", 0x19, INSTR_RR_RR },
+	{ "ar", 0x1a, INSTR_RR_RR },
+	{ "sr", 0x1b, INSTR_RR_RR },
+	{ "mr", 0x1c, INSTR_RR_RR },
+	{ "dr", 0x1d, INSTR_RR_RR },
+	{ "alr", 0x1e, INSTR_RR_RR },
+	{ "slr", 0x1f, INSTR_RR_RR },
+	{ "lpdr", 0x20, INSTR_RR_FF },
+	{ "lndr", 0x21, INSTR_RR_FF },
+	{ "ltdr", 0x22, INSTR_RR_FF },
+	{ "lcdr", 0x23, INSTR_RR_FF },
+	{ "hdr", 0x24, INSTR_RR_FF },
+	{ "ldxr", 0x25, INSTR_RR_FF },
+	{ "lrdr", 0x25, INSTR_RR_FF },
+	{ "mxr", 0x26, INSTR_RR_FF },
+	{ "mxdr", 0x27, INSTR_RR_FF },
+	{ "ldr", 0x28, INSTR_RR_FF },
+	{ "cdr", 0x29, INSTR_RR_FF },
+	{ "adr", 0x2a, INSTR_RR_FF },
+	{ "sdr", 0x2b, INSTR_RR_FF },
+	{ "mdr", 0x2c, INSTR_RR_FF },
+	{ "ddr", 0x2d, INSTR_RR_FF },
+	{ "awr", 0x2e, INSTR_RR_FF },
+	{ "swr", 0x2f, INSTR_RR_FF },
+	{ "lper", 0x30, INSTR_RR_FF },
+	{ "lner", 0x31, INSTR_RR_FF },
+	{ "lter", 0x32, INSTR_RR_FF },
+	{ "lcer", 0x33, INSTR_RR_FF },
+	{ "her", 0x34, INSTR_RR_FF },
+	{ "ledr", 0x35, INSTR_RR_FF },
+	{ "lrer", 0x35, INSTR_RR_FF },
+	{ "axr", 0x36, INSTR_RR_FF },
+	{ "sxr", 0x37, INSTR_RR_FF },
+	{ "ler", 0x38, INSTR_RR_FF },
+	{ "cer", 0x39, INSTR_RR_FF },
+	{ "aer", 0x3a, INSTR_RR_FF },
+	{ "ser", 0x3b, INSTR_RR_FF },
+	{ "mder", 0x3c, INSTR_RR_FF },
+	{ "mer", 0x3c, INSTR_RR_FF },
+	{ "der", 0x3d, INSTR_RR_FF },
+	{ "aur", 0x3e, INSTR_RR_FF },
+	{ "sur", 0x3f, INSTR_RR_FF },
+	{ "sth", 0x40, INSTR_RX_RRRD },
+	{ "la", 0x41, INSTR_RX_RRRD },
+	{ "stc", 0x42, INSTR_RX_RRRD },
+	{ "ic", 0x43, INSTR_RX_RRRD },
+	{ "ex", 0x44, INSTR_RX_RRRD },
+	{ "bal", 0x45, INSTR_RX_RRRD },
+	{ "bct", 0x46, INSTR_RX_RRRD },
+	{ "bc", 0x47, INSTR_RX_URRD },
+	{ "lh", 0x48, INSTR_RX_RRRD },
+	{ "ch", 0x49, INSTR_RX_RRRD },
+	{ "ah", 0x4a, INSTR_RX_RRRD },
+	{ "sh", 0x4b, INSTR_RX_RRRD },
+	{ "mh", 0x4c, INSTR_RX_RRRD },
+	{ "bas", 0x4d, INSTR_RX_RRRD },
+	{ "cvd", 0x4e, INSTR_RX_RRRD },
+	{ "cvb", 0x4f, INSTR_RX_RRRD },
+	{ "st", 0x50, INSTR_RX_RRRD },
+	{ "lae", 0x51, INSTR_RX_RRRD },
+	{ "n", 0x54, INSTR_RX_RRRD },
+	{ "cl", 0x55, INSTR_RX_RRRD },
+	{ "o", 0x56, INSTR_RX_RRRD },
+	{ "x", 0x57, INSTR_RX_RRRD },
+	{ "l", 0x58, INSTR_RX_RRRD },
+	{ "c", 0x59, INSTR_RX_RRRD },
+	{ "a", 0x5a, INSTR_RX_RRRD },
+	{ "s", 0x5b, INSTR_RX_RRRD },
+	{ "m", 0x5c, INSTR_RX_RRRD },
+	{ "d", 0x5d, INSTR_RX_RRRD },
+	{ "al", 0x5e, INSTR_RX_RRRD },
+	{ "sl", 0x5f, INSTR_RX_RRRD },
+	{ "std", 0x60, INSTR_RX_FRRD },
+	{ "mxd", 0x67, INSTR_RX_FRRD },
+	{ "ld", 0x68, INSTR_RX_FRRD },
+	{ "cd", 0x69, INSTR_RX_FRRD },
+	{ "ad", 0x6a, INSTR_RX_FRRD },
+	{ "sd", 0x6b, INSTR_RX_FRRD },
+	{ "md", 0x6c, INSTR_RX_FRRD },
+	{ "dd", 0x6d, INSTR_RX_FRRD },
+	{ "aw", 0x6e, INSTR_RX_FRRD },
+	{ "sw", 0x6f, INSTR_RX_FRRD },
+	{ "ste", 0x70, INSTR_RX_FRRD },
+	{ "ms", 0x71, INSTR_RX_RRRD },
+	{ "le", 0x78, INSTR_RX_FRRD },
+	{ "ce", 0x79, INSTR_RX_FRRD },
+	{ "ae", 0x7a, INSTR_RX_FRRD },
+	{ "se", 0x7b, INSTR_RX_FRRD },
+	{ "mde", 0x7c, INSTR_RX_FRRD },
+	{ "me", 0x7c, INSTR_RX_FRRD },
+	{ "de", 0x7d, INSTR_RX_FRRD },
+	{ "au", 0x7e, INSTR_RX_FRRD },
+	{ "su", 0x7f, INSTR_RX_FRRD },
+	{ "ssm", 0x80, INSTR_S_RD },
+	{ "lpsw", 0x82, INSTR_S_RD },
+	{ "diag", 0x83, INSTR_RS_RRRD },
+	{ "brxh", 0x84, INSTR_RSI_RRP },
+	{ "brxle", 0x85, INSTR_RSI_RRP },
+	{ "bxh", 0x86, INSTR_RS_RRRD },
+	{ "bxle", 0x87, INSTR_RS_RRRD },
+	{ "srl", 0x88, INSTR_RS_R0RD },
+	{ "sll", 0x89, INSTR_RS_R0RD },
+	{ "sra", 0x8a, INSTR_RS_R0RD },
+	{ "sla", 0x8b, INSTR_RS_R0RD },
+	{ "srdl", 0x8c, INSTR_RS_R0RD },
+	{ "sldl", 0x8d, INSTR_RS_R0RD },
+	{ "srda", 0x8e, INSTR_RS_R0RD },
+	{ "slda", 0x8f, INSTR_RS_R0RD },
+	{ "stm", 0x90, INSTR_RS_RRRD },
+	{ "tm", 0x91, INSTR_SI_URD },
+	{ "mvi", 0x92, INSTR_SI_URD },
+	{ "ts", 0x93, INSTR_S_RD },
+	{ "ni", 0x94, INSTR_SI_URD },
+	{ "cli", 0x95, INSTR_SI_URD },
+	{ "oi", 0x96, INSTR_SI_URD },
+	{ "xi", 0x97, INSTR_SI_URD },
+	{ "lm", 0x98, INSTR_RS_RRRD },
+	{ "trace", 0x99, INSTR_RS_RRRD },
+	{ "lam", 0x9a, INSTR_RS_AARD },
+	{ "stam", 0x9b, INSTR_RS_AARD },
+	{ "mvcle", 0xa8, INSTR_RS_RRRD },
+	{ "clcle", 0xa9, INSTR_RS_RRRD },
+	{ "stnsm", 0xac, INSTR_SI_URD },
+	{ "stosm", 0xad, INSTR_SI_URD },
+	{ "sigp", 0xae, INSTR_RS_RRRD },
+	{ "mc", 0xaf, INSTR_SI_URD },
+	{ "lra", 0xb1, INSTR_RX_RRRD },
+	{ "stctl", 0xb6, INSTR_RS_CCRD },
+	{ "lctl", 0xb7, INSTR_RS_CCRD },
+	{ "cs", 0xba, INSTR_RS_RRRD },
+	{ "cds", 0xbb, INSTR_RS_RRRD },
+	{ "clm", 0xbd, INSTR_RS_RURD },
+	{ "stcm", 0xbe, INSTR_RS_RURD },
+	{ "icm", 0xbf, INSTR_RS_RURD },
+	{ "mvn", 0xd1, INSTR_SS_L0RDRD },
+	{ "mvc", 0xd2, INSTR_SS_L0RDRD },
+	{ "mvz", 0xd3, INSTR_SS_L0RDRD },
+	{ "nc", 0xd4, INSTR_SS_L0RDRD },
+	{ "clc", 0xd5, INSTR_SS_L0RDRD },
+	{ "oc", 0xd6, INSTR_SS_L0RDRD },
+	{ "xc", 0xd7, INSTR_SS_L0RDRD },
+	{ "mvck", 0xd9, INSTR_SS_RRRDRD },
+	{ "mvcp", 0xda, INSTR_SS_RRRDRD },
+	{ "mvcs", 0xdb, INSTR_SS_RRRDRD },
+	{ "tr", 0xdc, INSTR_SS_L0RDRD },
+	{ "trt", 0xdd, INSTR_SS_L0RDRD },
+	{ "ed", 0xde, INSTR_SS_L0RDRD },
+	{ "edmk", 0xdf, INSTR_SS_L0RDRD },
+	{ "pku", 0xe1, INSTR_SS_L0RDRD },
+	{ "unpku", 0xe2, INSTR_SS_L0RDRD },
+	{ "mvcin", 0xe8, INSTR_SS_L0RDRD },
+	{ "pka", 0xe9, INSTR_SS_L0RDRD },
+	{ "unpka", 0xea, INSTR_SS_L0RDRD },
+	{ "plo", 0xee, INSTR_SS_RRRDRD2 },
+	{ "srp", 0xf0, INSTR_SS_LIRDRD },
+	{ "mvo", 0xf1, INSTR_SS_LLRDRD },
+	{ "pack", 0xf2, INSTR_SS_LLRDRD },
+	{ "unpk", 0xf3, INSTR_SS_LLRDRD },
+	{ "zap", 0xf8, INSTR_SS_LLRDRD },
+	{ "cp", 0xf9, INSTR_SS_LLRDRD },
+	{ "ap", 0xfa, INSTR_SS_LLRDRD },
+	{ "sp", 0xfb, INSTR_SS_LLRDRD },
+	{ "mp", 0xfc, INSTR_SS_LLRDRD },
+	{ "dp", 0xfd, INSTR_SS_LLRDRD },
+	{ "", 0, INSTR_INVALID }
+};
+
+static struct insn opcode_01[] = {
+#ifdef CONFIG_64BIT
+	{ "sam64", 0x0e, INSTR_E },
+#endif
+	{ "pr", 0x01, INSTR_E },
+	{ "upt", 0x02, INSTR_E },
+	{ "sckpf", 0x07, INSTR_E },
+	{ "tam", 0x0b, INSTR_E },
+	{ "sam24", 0x0c, INSTR_E },
+	{ "sam31", 0x0d, INSTR_E },
+	{ "trap2", 0xff, INSTR_E },
+	{ "", 0, INSTR_INVALID }
+};
+
+static struct insn opcode_a5[] = {
+#ifdef CONFIG_64BIT
+	{ "iihh", 0x00, INSTR_RI_RU },
+	{ "iihl", 0x01, INSTR_RI_RU },
+	{ "iilh", 0x02, INSTR_RI_RU },
+	{ "iill", 0x03, INSTR_RI_RU },
+	{ "nihh", 0x04, INSTR_RI_RU },
+	{ "nihl", 0x05, INSTR_RI_RU },
+	{ "nilh", 0x06, INSTR_RI_RU },
+	{ "nill", 0x07, INSTR_RI_RU },
+	{ "oihh", 0x08, INSTR_RI_RU },
+	{ "oihl", 0x09, INSTR_RI_RU },
+	{ "oilh", 0x0a, INSTR_RI_RU },
+	{ "oill", 0x0b, INSTR_RI_RU },
+	{ "llihh", 0x0c, INSTR_RI_RU },
+	{ "llihl", 0x0d, INSTR_RI_RU },
+	{ "llilh", 0x0e, INSTR_RI_RU },
+	{ "llill", 0x0f, INSTR_RI_RU },
+#endif
+	{ "", 0, INSTR_INVALID }
+};
+
+static struct insn opcode_a7[] = {
+#ifdef CONFIG_64BIT
+	{ "tmhh", 0x02, INSTR_RI_RU },
+	{ "tmhl", 0x03, INSTR_RI_RU },
+	{ "brctg", 0x07, INSTR_RI_RP },
+	{ "lghi", 0x09, INSTR_RI_RI },
+	{ "aghi", 0x0b, INSTR_RI_RI },
+	{ "mghi", 0x0d, INSTR_RI_RI },
+	{ "cghi", 0x0f, INSTR_RI_RI },
+#endif
+	{ "tmlh", 0x00, INSTR_RI_RU },
+	{ "tmll", 0x01, INSTR_RI_RU },
+	{ "brc", 0x04, INSTR_RI_UP },
+	{ "bras", 0x05, INSTR_RI_RP },
+	{ "brct", 0x06, INSTR_RI_RP },
+	{ "lhi", 0x08, INSTR_RI_RI },
+	{ "ahi", 0x0a, INSTR_RI_RI },
+	{ "mhi", 0x0c, INSTR_RI_RI },
+	{ "chi", 0x0e, INSTR_RI_RI },
+	{ "", 0, INSTR_INVALID }
+};
+
+static struct insn opcode_b2[] = {
+#ifdef CONFIG_64BIT
+	{ "sske", 0x2b, INSTR_RRF_M0RR },
+	{ "stckf", 0x7c, INSTR_S_RD },
+	{ "cu21", 0xa6, INSTR_RRF_M0RR },
+	{ "cuutf", 0xa6, INSTR_RRF_M0RR },
+	{ "cu12", 0xa7, INSTR_RRF_M0RR },
+	{ "cutfu", 0xa7, INSTR_RRF_M0RR },
+	{ "stfle", 0xb0, INSTR_S_RD },
+	{ "lpswe", 0xb2, INSTR_S_RD },
+#endif
+	{ "stidp", 0x02, INSTR_S_RD },
+	{ "sck", 0x04, INSTR_S_RD },
+	{ "stck", 0x05, INSTR_S_RD },
+	{ "sckc", 0x06, INSTR_S_RD },
+	{ "stckc", 0x07, INSTR_S_RD },
+	{ "spt", 0x08, INSTR_S_RD },
+	{ "stpt", 0x09, INSTR_S_RD },
+	{ "spka", 0x0a, INSTR_S_RD },
+	{ "ipk", 0x0b, INSTR_S_00 },
+	{ "ptlb", 0x0d, INSTR_S_00 },
+	{ "spx", 0x10, INSTR_S_RD },
+	{ "stpx", 0x11, INSTR_S_RD },
+	{ "stap", 0x12, INSTR_S_RD },
+	{ "sie", 0x14, INSTR_S_RD },
+	{ "pc", 0x18, INSTR_S_RD },
+	{ "sac", 0x19, INSTR_S_RD },
+	{ "cfc", 0x1a, INSTR_S_RD },
+	{ "ipte", 0x21, INSTR_RRE_RR },
+	{ "ipm", 0x22, INSTR_RRE_R0 },
+	{ "ivsk", 0x23, INSTR_RRE_RR },
+	{ "iac", 0x24, INSTR_RRE_R0 },
+	{ "ssar", 0x25, INSTR_RRE_R0 },
+	{ "epar", 0x26, INSTR_RRE_R0 },
+	{ "esar", 0x27, INSTR_RRE_R0 },
+	{ "pt", 0x28, INSTR_RRE_RR },
+	{ "iske", 0x29, INSTR_RRE_RR },
+	{ "rrbe", 0x2a, INSTR_RRE_RR },
+	{ "sske", 0x2b, INSTR_RRE_RR },
+	{ "tb", 0x2c, INSTR_RRE_0R },
+	{ "dxr", 0x2d, INSTR_RRE_F0 },
+	{ "pgin", 0x2e, INSTR_RRE_RR },
+	{ "pgout", 0x2f, INSTR_RRE_RR },
+	{ "csch", 0x30, INSTR_S_00 },
+	{ "hsch", 0x31, INSTR_S_00 },
+	{ "msch", 0x32, INSTR_S_RD },
+	{ "ssch", 0x33, INSTR_S_RD },
+	{ "stsch", 0x34, INSTR_S_RD },
+	{ "tsch", 0x35, INSTR_S_RD },
+	{ "tpi", 0x36, INSTR_S_RD },
+	{ "sal", 0x37, INSTR_S_00 },
+	{ "rsch", 0x38, INSTR_S_00 },
+	{ "stcrw", 0x39, INSTR_S_RD },
+	{ "stcps", 0x3a, INSTR_S_RD },
+	{ "rchp", 0x3b, INSTR_S_00 },
+	{ "schm", 0x3c, INSTR_S_00 },
+	{ "bakr", 0x40, INSTR_RRE_RR },
+	{ "cksm", 0x41, INSTR_RRE_RR },
+	{ "sqdr", 0x44, INSTR_RRE_F0 },
+	{ "sqer", 0x45, INSTR_RRE_F0 },
+	{ "stura", 0x46, INSTR_RRE_RR },
+	{ "msta", 0x47, INSTR_RRE_R0 },
+	{ "palb", 0x48, INSTR_RRE_00 },
+	{ "ereg", 0x49, INSTR_RRE_RR },
+	{ "esta", 0x4a, INSTR_RRE_RR },
+	{ "lura", 0x4b, INSTR_RRE_RR },
+	{ "tar", 0x4c, INSTR_RRE_AR },
+	{ "cpya", INSTR_RRE_AA },
+	{ "sar", 0x4e, INSTR_RRE_AR },
+	{ "ear", 0x4f, INSTR_RRE_RA },
+	{ "csp", 0x50, INSTR_RRE_RR },
+	{ "msr", 0x52, INSTR_RRE_RR },
+	{ "mvpg", 0x54, INSTR_RRE_RR },
+	{ "mvst", 0x55, INSTR_RRE_RR },
+	{ "cuse", 0x57, INSTR_RRE_RR },
+	{ "bsg", 0x58, INSTR_RRE_RR },
+	{ "bsa", 0x5a, INSTR_RRE_RR },
+	{ "clst", 0x5d, INSTR_RRE_RR },
+	{ "srst", 0x5e, INSTR_RRE_RR },
+	{ "cmpsc", 0x63, INSTR_RRE_RR },
+	{ "cmpsc", 0x63, INSTR_RRE_RR },
+	{ "siga", 0x74, INSTR_S_RD },
+	{ "xsch", 0x76, INSTR_S_00 },
+	{ "rp", 0x77, INSTR_S_RD },
+	{ "stcke", 0x78, INSTR_S_RD },
+	{ "sacf", 0x79, INSTR_S_RD },
+	{ "stsi", 0x7d, INSTR_S_RD },
+	{ "srnm", 0x99, INSTR_S_RD },
+	{ "stfpc", 0x9c, INSTR_S_RD },
+	{ "lfpc", 0x9d, INSTR_S_RD },
+	{ "tre", 0xa5, INSTR_RRE_RR },
+	{ "cuutf", 0xa6, INSTR_RRE_RR },
+	{ "cutfu", 0xa7, INSTR_RRE_RR },
+	{ "stfl", 0xb1, INSTR_S_RD },
+	{ "trap4", 0xff, INSTR_S_RD },
+	{ "", 0, INSTR_INVALID }
+};
+
+static struct insn opcode_b3[] = {
+#ifdef CONFIG_64BIT
+	{ "maylr", 0x38, INSTR_RRF_F0FF },
+	{ "mylr", 0x39, INSTR_RRF_F0FF },
+	{ "mayr", 0x3a, INSTR_RRF_F0FF },
+	{ "myr", 0x3b, INSTR_RRF_F0FF },
+	{ "mayhr", 0x3c, INSTR_RRF_F0FF },
+	{ "myhr", 0x3d, INSTR_RRF_F0FF },
+	{ "cegbr", 0xa4, INSTR_RRE_RR },
+	{ "cdgbr", 0xa5, INSTR_RRE_RR },
+	{ "cxgbr", 0xa6, INSTR_RRE_RR },
+	{ "cgebr", 0xa8, INSTR_RRF_U0RF },
+	{ "cgdbr", 0xa9, INSTR_RRF_U0RF },
+	{ "cgxbr", 0xaa, INSTR_RRF_U0RF },
+	{ "cfer", 0xb8, INSTR_RRF_U0RF },
+	{ "cfdr", 0xb9, INSTR_RRF_U0RF },
+	{ "cfxr", 0xba, INSTR_RRF_U0RF },
+	{ "cegr", 0xc4, INSTR_RRE_RR },
+	{ "cdgr", 0xc5, INSTR_RRE_RR },
+	{ "cxgr", 0xc6, INSTR_RRE_RR },
+	{ "cger", 0xc8, INSTR_RRF_U0RF },
+	{ "cgdr", 0xc9, INSTR_RRF_U0RF },
+	{ "cgxr", 0xca, INSTR_RRF_U0RF },
+#endif
+	{ "lpebr", 0x00, INSTR_RRE_FF },
+	{ "lnebr", 0x01, INSTR_RRE_FF },
+	{ "ltebr", 0x02, INSTR_RRE_FF },
+	{ "lcebr", 0x03, INSTR_RRE_FF },
+	{ "ldebr", 0x04, INSTR_RRE_FF },
+	{ "lxdbr", 0x05, INSTR_RRE_FF },
+	{ "lxebr", 0x06, INSTR_RRE_FF },
+	{ "mxdbr", 0x07, INSTR_RRE_FF },
+	{ "kebr", 0x08, INSTR_RRE_FF },
+	{ "cebr", 0x09, INSTR_RRE_FF },
+	{ "aebr", 0x0a, INSTR_RRE_FF },
+	{ "sebr", 0x0b, INSTR_RRE_FF },
+	{ "mdebr", 0x0c, INSTR_RRE_FF },
+	{ "debr", 0x0d, INSTR_RRE_FF },
+	{ "maebr", 0x0e, INSTR_RRF_F0FF },
+	{ "msebr", 0x0f, INSTR_RRF_F0FF },
+	{ "lpdbr", 0x10, INSTR_RRE_FF },
+	{ "lndbr", 0x11, INSTR_RRE_FF },
+	{ "ltdbr", 0x12, INSTR_RRE_FF },
+	{ "lcdbr", 0x13, INSTR_RRE_FF },
+	{ "sqebr", 0x14, INSTR_RRE_FF },
+	{ "sqdbr", 0x15, INSTR_RRE_FF },
+	{ "sqxbr", 0x16, INSTR_RRE_FF },
+	{ "meebr", 0x17, INSTR_RRE_FF },
+	{ "kdbr", 0x18, INSTR_RRE_FF },
+	{ "cdbr", 0x19, INSTR_RRE_FF },
+	{ "adbr", 0x1a, INSTR_RRE_FF },
+	{ "sdbr", 0x1b, INSTR_RRE_FF },
+	{ "mdbr", 0x1c, INSTR_RRE_FF },
+	{ "ddbr", 0x1d, INSTR_RRE_FF },
+	{ "madbr", 0x1e, INSTR_RRF_F0FF },
+	{ "msdbr", 0x1f, INSTR_RRF_F0FF },
+	{ "lder", 0x24, INSTR_RRE_FF },
+	{ "lxdr", 0x25, INSTR_RRE_FF },
+	{ "lxer", 0x26, INSTR_RRE_FF },
+	{ "maer", 0x2e, INSTR_RRF_F0FF },
+	{ "mser", 0x2f, INSTR_RRF_F0FF },
+	{ "sqxr", 0x36, INSTR_RRE_FF },
+	{ "meer", 0x37, INSTR_RRE_FF },
+	{ "madr", 0x3e, INSTR_RRF_F0FF },
+	{ "msdr", 0x3f, INSTR_RRF_F0FF },
+	{ "lpxbr", 0x40, INSTR_RRE_FF },
+	{ "lnxbr", 0x41, INSTR_RRE_FF },
+	{ "ltxbr", 0x42, INSTR_RRE_FF },
+	{ "lcxbr", 0x43, INSTR_RRE_FF },
+	{ "ledbr", 0x44, INSTR_RRE_FF },
+	{ "ldxbr", 0x45, INSTR_RRE_FF },
+	{ "lexbr", 0x46, INSTR_RRE_FF },
+	{ "fixbr", 0x47, INSTR_RRF_U0FF },
+	{ "kxbr", 0x48, INSTR_RRE_FF },
+	{ "cxbr", 0x49, INSTR_RRE_FF },
+	{ "axbr", 0x4a, INSTR_RRE_FF },
+	{ "sxbr", 0x4b, INSTR_RRE_FF },
+	{ "mxbr", 0x4c, INSTR_RRE_FF },
+	{ "dxbr", 0x4d, INSTR_RRE_FF },
+	{ "tbedr", 0x50, INSTR_RRF_U0FF },
+	{ "tbdr", 0x51, INSTR_RRF_U0FF },
+	{ "diebr", 0x53, INSTR_RRF_FUFF },
+	{ "fiebr", 0x57, INSTR_RRF_U0FF },
+	{ "thder", 0x58, INSTR_RRE_RR },
+	{ "thdr", 0x59, INSTR_RRE_RR },
+	{ "didbr", 0x5b, INSTR_RRF_FUFF },
+	{ "fidbr", 0x5f, INSTR_RRF_U0FF },
+	{ "lpxr", 0x60, INSTR_RRE_FF },
+	{ "lnxr", 0x61, INSTR_RRE_FF },
+	{ "ltxr", 0x62, INSTR_RRE_FF },
+	{ "lcxr", 0x63, INSTR_RRE_FF },
+	{ "lxr", 0x65, INSTR_RRE_RR },
+	{ "lexr", 0x66, INSTR_RRE_FF },
+	{ "fixr", 0x67, INSTR_RRF_U0FF },
+	{ "cxr", 0x69, INSTR_RRE_FF },
+	{ "lzer", 0x74, INSTR_RRE_R0 },
+	{ "lzdr", 0x75, INSTR_RRE_R0 },
+	{ "lzxr", 0x76, INSTR_RRE_R0 },
+	{ "fier", 0x77, INSTR_RRF_U0FF },
+	{ "fidr", 0x7f, INSTR_RRF_U0FF },
+	{ "sfpc", 0x84, INSTR_RRE_RR_OPT },
+	{ "efpc", 0x8c, INSTR_RRE_RR_OPT },
+	{ "cefbr", 0x94, INSTR_RRE_RF },
+	{ "cdfbr", 0x95, INSTR_RRE_RF },
+	{ "cxfbr", 0x96, INSTR_RRE_RF },
+	{ "cfebr", 0x98, INSTR_RRF_U0RF },
+	{ "cfdbr", 0x99, INSTR_RRF_U0RF },
+	{ "cfxbr", 0x9a, INSTR_RRF_U0RF },
+	{ "cefr", 0xb4, INSTR_RRE_RF },
+	{ "cdfr", 0xb5, INSTR_RRE_RF },
+	{ "cxfr", 0xb6, INSTR_RRE_RF },
+	{ "", 0, INSTR_INVALID }
+};
+
+static struct insn opcode_b9[] = {
+#ifdef CONFIG_64BIT
+	{ "lpgr", 0x00, INSTR_RRE_RR },
+	{ "lngr", 0x01, INSTR_RRE_RR },
+	{ "ltgr", 0x02, INSTR_RRE_RR },
+	{ "lcgr", 0x03, INSTR_RRE_RR },
+	{ "lgr", 0x04, INSTR_RRE_RR },
+	{ "lurag", 0x05, INSTR_RRE_RR },
+	{ "lgbr", 0x06, INSTR_RRE_RR },
+	{ "lghr", 0x07, INSTR_RRE_RR },
+	{ "agr", 0x08, INSTR_RRE_RR },
+	{ "sgr", 0x09, INSTR_RRE_RR },
+	{ "algr", 0x0a, INSTR_RRE_RR },
+	{ "slgr", 0x0b, INSTR_RRE_RR },
+	{ "msgr", 0x0c, INSTR_RRE_RR },
+	{ "dsgr", 0x0d, INSTR_RRE_RR },
+	{ "eregg", 0x0e, INSTR_RRE_RR },
+	{ "lrvgr", 0x0f, INSTR_RRE_RR },
+	{ "lpgfr", 0x10, INSTR_RRE_RR },
+	{ "lngfr", 0x11, INSTR_RRE_RR },
+	{ "ltgfr", 0x12, INSTR_RRE_RR },
+	{ "lcgfr", 0x13, INSTR_RRE_RR },
+	{ "lgfr", 0x14, INSTR_RRE_RR },
+	{ "llgfr", 0x16, INSTR_RRE_RR },
+	{ "llgtr", 0x17, INSTR_RRE_RR },
+	{ "agfr", 0x18, INSTR_RRE_RR },
+	{ "sgfr", 0x19, INSTR_RRE_RR },
+	{ "algfr", 0x1a, INSTR_RRE_RR },
+	{ "slgfr", 0x1b, INSTR_RRE_RR },
+	{ "msgfr", 0x1c, INSTR_RRE_RR },
+	{ "dsgfr", 0x1d, INSTR_RRE_RR },
+	{ "cgr", 0x20, INSTR_RRE_RR },
+	{ "clgr", 0x21, INSTR_RRE_RR },
+	{ "sturg", 0x25, INSTR_RRE_RR },
+	{ "lbr", 0x26, INSTR_RRE_RR },
+	{ "lhr", 0x27, INSTR_RRE_RR },
+	{ "cgfr", 0x30, INSTR_RRE_RR },
+	{ "clgfr", 0x31, INSTR_RRE_RR },
+	{ "bctgr", 0x46, INSTR_RRE_RR },
+	{ "ngr", 0x80, INSTR_RRE_RR },
+	{ "ogr", 0x81, INSTR_RRE_RR },
+	{ "xgr", 0x82, INSTR_RRE_RR },
+	{ "flogr", 0x83, INSTR_RRE_RR },
+	{ "llgcr", 0x84, INSTR_RRE_RR },
+	{ "llghr", 0x85, INSTR_RRE_RR },
+	{ "mlgr", 0x86, INSTR_RRE_RR },
+	{ "dlgr", 0x87, INSTR_RRE_RR },
+	{ "alcgr", 0x88, INSTR_RRE_RR },
+	{ "slbgr", 0x89, INSTR_RRE_RR },
+	{ "cspg", 0x8a, INSTR_RRE_RR },
+	{ "idte", 0x8e, INSTR_RRF_R0RR },
+	{ "llcr", 0x94, INSTR_RRE_RR },
+	{ "llhr", 0x95, INSTR_RRE_RR },
+	{ "esea", 0x9d, INSTR_RRE_R0 },
+	{ "lptea", 0xaa, INSTR_RRF_RURR },
+	{ "cu14", 0xb0, INSTR_RRF_M0RR },
+	{ "cu24", 0xb1, INSTR_RRF_M0RR },
+	{ "cu41", 0xb2, INSTR_RRF_M0RR },
+	{ "cu42", 0xb3, INSTR_RRF_M0RR },
+#endif
+	{ "kmac", 0x1e, INSTR_RRE_RR },
+	{ "lrvr", 0x1f, INSTR_RRE_RR },
+	{ "km", 0x2e, INSTR_RRE_RR },
+	{ "kmc", 0x2f, INSTR_RRE_RR },
+	{ "kimd", 0x3e, INSTR_RRE_RR },
+	{ "klmd", 0x3f, INSTR_RRE_RR },
+	{ "epsw", 0x8d, INSTR_RRE_RR },
+	{ "trtt", 0x90, INSTR_RRE_RR },
+	{ "trtt", 0x90, INSTR_RRF_M0RR },
+	{ "trto", 0x91, INSTR_RRE_RR },
+	{ "trto", 0x91, INSTR_RRF_M0RR },
+	{ "trot", 0x92, INSTR_RRE_RR },
+	{ "trot", 0x92, INSTR_RRF_M0RR },
+	{ "troo", 0x93, INSTR_RRE_RR },
+	{ "troo", 0x93, INSTR_RRF_M0RR },
+	{ "mlr", 0x96, INSTR_RRE_RR },
+	{ "dlr", 0x97, INSTR_RRE_RR },
+	{ "alcr", 0x98, INSTR_RRE_RR },
+	{ "slbr", 0x99, INSTR_RRE_RR },
+	{ "", 0, INSTR_INVALID }
+};
+
+static struct insn opcode_c0[] = {
+#ifdef CONFIG_64BIT
+	{ "lgfi", 0x01, INSTR_RIL_RI },
+	{ "xihf", 0x06, INSTR_RIL_RU },
+	{ "xilf", 0x07, INSTR_RIL_RU },
+	{ "iihf", 0x08, INSTR_RIL_RU },
+	{ "iilf", 0x09, INSTR_RIL_RU },
+	{ "nihf", 0x0a, INSTR_RIL_RU },
+	{ "nilf", 0x0b, INSTR_RIL_RU },
+	{ "oihf", 0x0c, INSTR_RIL_RU },
+	{ "oilf", 0x0d, INSTR_RIL_RU },
+	{ "llihf", 0x0e, INSTR_RIL_RU },
+	{ "llilf", 0x0f, INSTR_RIL_RU },
+#endif
+	{ "larl", 0x00, INSTR_RIL_RP },
+	{ "brcl", 0x04, INSTR_RIL_UP },
+	{ "brasl", 0x05, INSTR_RIL_RP },
+	{ "", 0, INSTR_INVALID }
+};
+
+static struct insn opcode_c2[] = {
+#ifdef CONFIG_64BIT
+	{ "slgfi", 0x04, INSTR_RIL_RU },
+	{ "slfi", 0x05, INSTR_RIL_RU },
+	{ "agfi", 0x08, INSTR_RIL_RI },
+	{ "afi", 0x09, INSTR_RIL_RI },
+	{ "algfi", 0x0a, INSTR_RIL_RU },
+	{ "alfi", 0x0b, INSTR_RIL_RU },
+	{ "cgfi", 0x0c, INSTR_RIL_RI },
+	{ "cfi", 0x0d, INSTR_RIL_RI },
+	{ "clgfi", 0x0e, INSTR_RIL_RU },
+	{ "clfi", 0x0f, INSTR_RIL_RU },
+#endif
+	{ "", 0, INSTR_INVALID }
+};
+
+static struct insn opcode_c8[] = {
+#ifdef CONFIG_64BIT
+	{ "mvcos", 0x00, INSTR_SSF_RRDRD },
+#endif
+	{ "", 0, INSTR_INVALID }
+};
+
+static struct insn opcode_e3[] = {
+#ifdef CONFIG_64BIT
+	{ "ltg", 0x02, INSTR_RXY_RRRD },
+	{ "lrag", 0x03, INSTR_RXY_RRRD },
+	{ "lg", 0x04, INSTR_RXY_RRRD },
+	{ "cvby", 0x06, INSTR_RXY_RRRD },
+	{ "ag", 0x08, INSTR_RXY_RRRD },
+	{ "sg", 0x09, INSTR_RXY_RRRD },
+	{ "alg", 0x0a, INSTR_RXY_RRRD },
+	{ "slg", 0x0b, INSTR_RXY_RRRD },
+	{ "msg", 0x0c, INSTR_RXY_RRRD },
+	{ "dsg", 0x0d, INSTR_RXY_RRRD },
+	{ "cvbg", 0x0e, INSTR_RXY_RRRD },
+	{ "lrvg", 0x0f, INSTR_RXY_RRRD },
+	{ "lt", 0x12, INSTR_RXY_RRRD },
+	{ "lray", 0x13, INSTR_RXY_RRRD },
+	{ "lgf", 0x14, INSTR_RXY_RRRD },
+	{ "lgh", 0x15, INSTR_RXY_RRRD },
+	{ "llgf", 0x16, INSTR_RXY_RRRD },
+	{ "llgt", 0x17, INSTR_RXY_RRRD },
+	{ "agf", 0x18, INSTR_RXY_RRRD },
+	{ "sgf", 0x19, INSTR_RXY_RRRD },
+	{ "algf", 0x1a, INSTR_RXY_RRRD },
+	{ "slgf", 0x1b, INSTR_RXY_RRRD },
+	{ "msgf", 0x1c, INSTR_RXY_RRRD },
+	{ "dsgf", 0x1d, INSTR_RXY_RRRD },
+	{ "cg", 0x20, INSTR_RXY_RRRD },
+	{ "clg", 0x21, INSTR_RXY_RRRD },
+	{ "stg", 0x24, INSTR_RXY_RRRD },
+	{ "cvdy", 0x26, INSTR_RXY_RRRD },
+	{ "cvdg", 0x2e, INSTR_RXY_RRRD },
+	{ "strvg", 0x2f, INSTR_RXY_RRRD },
+	{ "cgf", 0x30, INSTR_RXY_RRRD },
+	{ "clgf", 0x31, INSTR_RXY_RRRD },
+	{ "strvh", 0x3f, INSTR_RXY_RRRD },
+	{ "bctg", 0x46, INSTR_RXY_RRRD },
+	{ "sty", 0x50, INSTR_RXY_RRRD },
+	{ "msy", 0x51, INSTR_RXY_RRRD },
+	{ "ny", 0x54, INSTR_RXY_RRRD },
+	{ "cly", 0x55, INSTR_RXY_RRRD },
+	{ "oy", 0x56, INSTR_RXY_RRRD },
+	{ "xy", 0x57, INSTR_RXY_RRRD },
+	{ "ly", 0x58, INSTR_RXY_RRRD },
+	{ "cy", 0x59, INSTR_RXY_RRRD },
+	{ "ay", 0x5a, INSTR_RXY_RRRD },
+	{ "sy", 0x5b, INSTR_RXY_RRRD },
+	{ "aly", 0x5e, INSTR_RXY_RRRD },
+	{ "sly", 0x5f, INSTR_RXY_RRRD },
+	{ "sthy", 0x70, INSTR_RXY_RRRD },
+	{ "lay", 0x71, INSTR_RXY_RRRD },
+	{ "stcy", 0x72, INSTR_RXY_RRRD },
+	{ "icy", 0x73, INSTR_RXY_RRRD },
+	{ "lb", 0x76, INSTR_RXY_RRRD },
+	{ "lgb", 0x77, INSTR_RXY_RRRD },
+	{ "lhy", 0x78, INSTR_RXY_RRRD },
+	{ "chy", 0x79, INSTR_RXY_RRRD },
+	{ "ahy", 0x7a, INSTR_RXY_RRRD },
+	{ "shy", 0x7b, INSTR_RXY_RRRD },
+	{ "ng", 0x80, INSTR_RXY_RRRD },
+	{ "og", 0x81, INSTR_RXY_RRRD },
+	{ "xg", 0x82, INSTR_RXY_RRRD },
+	{ "mlg", 0x86, INSTR_RXY_RRRD },
+	{ "dlg", 0x87, INSTR_RXY_RRRD },
+	{ "alcg", 0x88, INSTR_RXY_RRRD },
+	{ "slbg", 0x89, INSTR_RXY_RRRD },
+	{ "stpq", 0x8e, INSTR_RXY_RRRD },
+	{ "lpq", 0x8f, INSTR_RXY_RRRD },
+	{ "llgc", 0x90, INSTR_RXY_RRRD },
+	{ "llgh", 0x91, INSTR_RXY_RRRD },
+	{ "llc", 0x94, INSTR_RXY_RRRD },
+	{ "llh", 0x95, INSTR_RXY_RRRD },
+#endif
+	{ "lrv", 0x1e, INSTR_RXY_RRRD },
+	{ "lrvh", 0x1f, INSTR_RXY_RRRD },
+	{ "strv", 0x3e, INSTR_RXY_RRRD },
+	{ "ml", 0x96, INSTR_RXY_RRRD },
+	{ "dl", 0x97, INSTR_RXY_RRRD },
+	{ "alc", 0x98, INSTR_RXY_RRRD },
+	{ "slb", 0x99, INSTR_RXY_RRRD },
+	{ "", 0, INSTR_INVALID }
+};
+
+static struct insn opcode_e5[] = {
+#ifdef CONFIG_64BIT
+	{ "strag", 0x02, INSTR_SSE_RDRD },
+#endif
+	{ "lasp", 0x00, INSTR_SSE_RDRD },
+	{ "tprot", 0x01, INSTR_SSE_RDRD },
+	{ "mvcsk", 0x0e, INSTR_SSE_RDRD },
+	{ "mvcdk", 0x0f, INSTR_SSE_RDRD },
+	{ "", 0, INSTR_INVALID }
+};
+
+static struct insn opcode_eb[] = {
+#ifdef CONFIG_64BIT
+	{ "lmg", 0x04, INSTR_RSY_RRRD },
+	{ "srag", 0x0a, INSTR_RSY_RRRD },
+	{ "slag", 0x0b, INSTR_RSY_RRRD },
+	{ "srlg", 0x0c, INSTR_RSY_RRRD },
+	{ "sllg", 0x0d, INSTR_RSY_RRRD },
+	{ "tracg", 0x0f, INSTR_RSY_RRRD },
+	{ "csy", 0x14, INSTR_RSY_RRRD },
+	{ "rllg", 0x1c, INSTR_RSY_RRRD },
+	{ "clmh", 0x20, INSTR_RSY_RURD },
+	{ "clmy", 0x21, INSTR_RSY_RURD },
+	{ "stmg", 0x24, INSTR_RSY_RRRD },
+	{ "stctg", 0x25, INSTR_RSY_CCRD },
+	{ "stmh", 0x26, INSTR_RSY_RRRD },
+	{ "stcmh", 0x2c, INSTR_RSY_RURD },
+	{ "stcmy", 0x2d, INSTR_RSY_RURD },
+	{ "lctlg", 0x2f, INSTR_RSY_CCRD },
+	{ "csg", 0x30, INSTR_RSY_RRRD },
+	{ "cdsy", 0x31, INSTR_RSY_RRRD },
+	{ "cdsg", 0x3e, INSTR_RSY_RRRD },
+	{ "bxhg", 0x44, INSTR_RSY_RRRD },
+	{ "bxleg", 0x45, INSTR_RSY_RRRD },
+	{ "tmy", 0x51, INSTR_SIY_URD },
+	{ "mviy", 0x52, INSTR_SIY_URD },
+	{ "niy", 0x54, INSTR_SIY_URD },
+	{ "cliy", 0x55, INSTR_SIY_URD },
+	{ "oiy", 0x56, INSTR_SIY_URD },
+	{ "xiy", 0x57, INSTR_SIY_URD },
+	{ "icmh", 0x80, INSTR_RSE_RURD },
+	{ "icmh", 0x80, INSTR_RSY_RURD },
+	{ "icmy", 0x81, INSTR_RSY_RURD },
+	{ "clclu", 0x8f, INSTR_RSY_RRRD },
+	{ "stmy", 0x90, INSTR_RSY_RRRD },
+	{ "lmh", 0x96, INSTR_RSY_RRRD },
+	{ "lmy", 0x98, INSTR_RSY_RRRD },
+	{ "lamy", 0x9a, INSTR_RSY_AARD },
+	{ "stamy", 0x9b, INSTR_RSY_AARD },
+#endif
+	{ "rll", 0x1d, INSTR_RSY_RRRD },
+	{ "mvclu", 0x8e, INSTR_RSY_RRRD },
+	{ "tp", 0xc0, INSTR_RSL_R0RD },
+	{ "", 0, INSTR_INVALID }
+};
+
+static struct insn opcode_ec[] = {
+#ifdef CONFIG_64BIT
+	{ "brxhg", 0x44, INSTR_RIE_RRP },
+	{ "brxlg", 0x45, INSTR_RIE_RRP },
+#endif
+	{ "", 0, INSTR_INVALID }
+};
+
+static struct insn opcode_ed[] = {
+#ifdef CONFIG_64BIT
+	{ "mayl", 0x38, INSTR_RXF_FRRDF },
+	{ "myl", 0x39, INSTR_RXF_FRRDF },
+	{ "may", 0x3a, INSTR_RXF_FRRDF },
+	{ "my", 0x3b, INSTR_RXF_FRRDF },
+	{ "mayh", 0x3c, INSTR_RXF_FRRDF },
+	{ "myh", 0x3d, INSTR_RXF_FRRDF },
+	{ "ley", 0x64, INSTR_RXY_FRRD },
+	{ "ldy", 0x65, INSTR_RXY_FRRD },
+	{ "stey", 0x66, INSTR_RXY_FRRD },
+	{ "stdy", 0x67, INSTR_RXY_FRRD },
+#endif
+	{ "ldeb", 0x04, INSTR_RXE_FRRD },
+	{ "lxdb", 0x05, INSTR_RXE_FRRD },
+	{ "lxeb", 0x06, INSTR_RXE_FRRD },
+	{ "mxdb", 0x07, INSTR_RXE_FRRD },
+	{ "keb", 0x08, INSTR_RXE_FRRD },
+	{ "ceb", 0x09, INSTR_RXE_FRRD },
+	{ "aeb", 0x0a, INSTR_RXE_FRRD },
+	{ "seb", 0x0b, INSTR_RXE_FRRD },
+	{ "mdeb", 0x0c, INSTR_RXE_FRRD },
+	{ "deb", 0x0d, INSTR_RXE_FRRD },
+	{ "maeb", 0x0e, INSTR_RXF_FRRDF },
+	{ "mseb", 0x0f, INSTR_RXF_FRRDF },
+	{ "tceb", 0x10, INSTR_RXE_FRRD },
+	{ "tcdb", 0x11, INSTR_RXE_FRRD },
+	{ "tcxb", 0x12, INSTR_RXE_FRRD },
+	{ "sqeb", 0x14, INSTR_RXE_FRRD },
+	{ "sqdb", 0x15, INSTR_RXE_FRRD },
+	{ "meeb", 0x17, INSTR_RXE_FRRD },
+	{ "kdb", 0x18, INSTR_RXE_FRRD },
+	{ "cdb", 0x19, INSTR_RXE_FRRD },
+	{ "adb", 0x1a, INSTR_RXE_FRRD },
+	{ "sdb", 0x1b, INSTR_RXE_FRRD },
+	{ "mdb", 0x1c, INSTR_RXE_FRRD },
+	{ "ddb", 0x1d, INSTR_RXE_FRRD },
+	{ "madb", 0x1e, INSTR_RXF_FRRDF },
+	{ "msdb", 0x1f, INSTR_RXF_FRRDF },
+	{ "lde", 0x24, INSTR_RXE_FRRD },
+	{ "lxd", 0x25, INSTR_RXE_FRRD },
+	{ "lxe", 0x26, INSTR_RXE_FRRD },
+	{ "mae", 0x2e, INSTR_RXF_FRRDF },
+	{ "mse", 0x2f, INSTR_RXF_FRRDF },
+	{ "sqe", 0x34, INSTR_RXE_FRRD },
+	{ "mee", 0x37, INSTR_RXE_FRRD },
+	{ "mad", 0x3e, INSTR_RXF_FRRDF },
+	{ "msd", 0x3f, INSTR_RXF_FRRDF },
+	{ "", 0, INSTR_INVALID }
+};
+
+/* Extracts an operand value from an instruction.  */
+static unsigned int extract_operand(unsigned char *code,
+				    const struct operand *operand)
+{
+	unsigned int val;
+	int bits;
+
+	/* Extract fragments of the operand byte for byte.  */
+	code += operand->shift / 8;
+	bits = (operand->shift & 7) + operand->bits;
+	val = 0;
+	do {
+		val <<= 8;
+		val |= (unsigned int) *code++;
+		bits -= 8;
+	} while (bits > 0);
+	val >>= -bits;
+	val &= ((1U << (operand->bits - 1)) << 1) - 1;
+
+	/* Check for special long displacement case.  */
+	if (operand->bits == 20 && operand->shift == 20)
+		val = (val & 0xff) << 12 | (val & 0xfff00) >> 8;
+
+	/* Sign extend value if the operand is signed or pc relative.  */
+	if ((operand->flags & (OPERAND_SIGNED | OPERAND_PCREL)) &&
+	    (val & (1U << (operand->bits - 1))))
+		val |= (-1U << (operand->bits - 1)) << 1;
+
+	/* Double value if the operand is pc relative.	*/
+	if (operand->flags & OPERAND_PCREL)
+		val <<= 1;
+
+	/* Length x in an instructions has real length x + 1.  */
+	if (operand->flags & OPERAND_LENGTH)
+		val++;
+	return val;
+}
+
+static inline int insn_length(unsigned char code)
+{
+	return ((((int) code + 64) >> 7) + 1) << 1;
+}
+
+static struct insn *find_insn(unsigned char *code)
+{
+	unsigned char opfrag = code[1];
+	unsigned char opmask;
+	struct insn *table;
+
+	switch (code[0]) {
+	case 0x01:
+		table = opcode_01;
+		break;
+	case 0xa5:
+		table = opcode_a5;
+		break;
+	case 0xa7:
+		table = opcode_a7;
+		break;
+	case 0xb2:
+		table = opcode_b2;
+		break;
+	case 0xb3:
+		table = opcode_b3;
+		break;
+	case 0xb9:
+		table = opcode_b9;
+		break;
+	case 0xc0:
+		table = opcode_c0;
+		break;
+	case 0xc2:
+		table = opcode_c2;
+		break;
+	case 0xc8:
+		table = opcode_c8;
+		break;
+	case 0xe3:
+		table = opcode_e3;
+		opfrag = code[5];
+		break;
+	case 0xe5:
+		table = opcode_e5;
+		break;
+	case 0xeb:
+		table = opcode_eb;
+		opfrag = code[5];
+		break;
+	case 0xec:
+		table = opcode_ec;
+		opfrag = code[5];
+		break;
+	case 0xed:
+		table = opcode_ed;
+		opfrag = code[5];
+		break;
+	default:
+		table = opcode;
+		opfrag = code[0];
+		break;
+	}
+	while (table->format != INSTR_INVALID) {
+		opmask = formats[table->format][0];
+		if (table->opfrag == (opfrag & opmask))
+			return table;
+		table++;
+	}
+	return NULL;
+}
+
+static int print_insn(char *buffer, unsigned char *code, unsigned long addr)
+{
+	struct insn *insn;
+	const unsigned char *ops;
+	const struct operand *operand;
+	unsigned int value;
+	char separator;
+	char *ptr;
+
+	ptr = buffer;
+	insn = find_insn(code);
+	if (insn) {
+		ptr += sprintf(ptr, "%.5s\t", insn->name);
+		/* Extract the operands. */
+		separator = 0;
+		for (ops = formats[insn->format] + 1; *ops != 0; ops++) {
+			operand = operands + *ops;
+			value = extract_operand(code, operand);
+			if ((operand->flags & OPERAND_INDEX)  && value == 0)
+				continue;
+			if ((operand->flags & OPERAND_BASE) &&
+			    value == 0 && separator == '(') {
+				separator = ',';
+				continue;
+			}
+			if (separator)
+				ptr += sprintf(ptr, "%c", separator);
+			if (operand->flags & OPERAND_GPR)
+				ptr += sprintf(ptr, "%%r%i", value);
+			else if (operand->flags & OPERAND_FPR)
+				ptr += sprintf(ptr, "%%f%i", value);
+			else if (operand->flags & OPERAND_AR)
+				ptr += sprintf(ptr, "%%a%i", value);
+			else if (operand->flags & OPERAND_CR)
+				ptr += sprintf(ptr, "%%c%i", value);
+			else if (operand->flags & OPERAND_PCREL)
+				ptr += sprintf(ptr, "%lx", value + addr);
+			else if (operand->flags & OPERAND_SIGNED)
+				ptr += sprintf(ptr, "%i", value);
+			else
+				ptr += sprintf(ptr, "%u", value);
+			if (operand->flags & OPERAND_DISP)
+				separator = '(';
+			else if (operand->flags & OPERAND_BASE) {
+				ptr += sprintf(ptr, ")");
+				separator = ',';
+			} else
+				separator = ',';
+		}
+	} else
+		ptr += sprintf(ptr, "unknown");
+	return (int) (ptr - buffer);
+}
+
+void show_code(struct pt_regs *regs)
+{
+	char *mode = (regs->psw.mask & PSW_MASK_PSTATE) ? "User" : "Krnl";
+	unsigned char code[64];
+	char buffer[64], *ptr;
+	mm_segment_t old_fs;
+	unsigned long addr;
+	int start, end, opsize, hops, i;
+
+	/* Get a snapshot of the 64 bytes surrounding the fault address. */
+	old_fs = get_fs();
+	set_fs((regs->psw.mask & PSW_MASK_PSTATE) ? USER_DS : KERNEL_DS);
+	for (start = 32; start && regs->psw.addr >= 34 - start; start -= 2) {
+		addr = regs->psw.addr - 34 + start;
+		if (__copy_from_user(code + start - 2,
+				     (char __user *) addr, 2))
+			break;
+	}
+	for (end = 32; end < 64; end += 2) {
+		addr = regs->psw.addr + end - 32;
+		if (__copy_from_user(code + end,
+				     (char __user *) addr, 2))
+			break;
+	}
+	set_fs(old_fs);
+	/* Code snapshot useable ? */
+	if ((regs->psw.addr & 1) || start >= end) {
+		printk("%s Code: Bad PSW.\n", mode);
+		return;
+	}
+	/* Find a starting point for the disassembly. */
+	while (start < 32) {
+		hops = 0;
+		for (i = 0, hops = 0; start + i < 32 && hops < 3; hops++) {
+			if (!find_insn(code + start + i))
+				break;
+			i += insn_length(code[start + i]);
+		}
+		if (start + i == 32)
+			/* Looks good, sequence ends at PSW. */
+			break;
+		start += 2;
+	}
+	/* Decode the instructions. */
+	ptr = buffer;
+	ptr += sprintf(ptr, "%s Code:", mode);
+	hops = 0;
+	while (start < end && hops < 8) {
+		*ptr++ = (start == 32) ? '>' : ' ';
+		addr = regs->psw.addr + start - 32;
+		ptr += sprintf(ptr, ONELONG, addr);
+		opsize = insn_length(code[start]);
+		if (start + opsize >= end)
+			break;
+		for (i = 0; i < opsize; i++)
+			ptr += sprintf(ptr, "%02x", code[start + i]);
+		*ptr++ = '\t';
+		if (i < 6)
+			*ptr++ = '\t';
+		ptr += print_insn(ptr, code + start, addr);
+		start += opsize;
+		printk(buffer);
+		ptr = buffer;
+		ptr += sprintf(ptr, "\n          ");
+		hops++;
+	}
+	printk("\n");
+}
diff --git a/arch/s390/kernel/traps.c b/arch/s390/kernel/traps.c
index f0e5a320e2ec..a6540940190b 100644
--- a/arch/s390/kernel/traps.c
+++ b/arch/s390/kernel/traps.c
@@ -188,18 +188,31 @@ void dump_stack(void)
 
 EXPORT_SYMBOL(dump_stack);
 
+static inline int mask_bits(struct pt_regs *regs, unsigned long bits)
+{
+	return (regs->psw.mask & bits) / ((~bits + 1) & bits);
+}
+
 void show_registers(struct pt_regs *regs)
 {
-	mm_segment_t old_fs;
 	char *mode;
-	int i;
 
 	mode = (regs->psw.mask & PSW_MASK_PSTATE) ? "User" : "Krnl";
 	printk("%s PSW : %p %p",
 	       mode, (void *) regs->psw.mask,
 	       (void *) regs->psw.addr);
 	print_symbol(" (%s)\n", regs->psw.addr & PSW_ADDR_INSN);
-	printk("%s GPRS: " FOURLONG, mode,
+	printk("           R:%x T:%x IO:%x EX:%x Key:%x M:%x W:%x "
+	       "P:%x AS:%x CC:%x PM:%x", mask_bits(regs, PSW_MASK_PER),
+	       mask_bits(regs, PSW_MASK_DAT), mask_bits(regs, PSW_MASK_IO),
+	       mask_bits(regs, PSW_MASK_EXT), mask_bits(regs, PSW_MASK_KEY),
+	       mask_bits(regs, PSW_MASK_MCHECK), mask_bits(regs, PSW_MASK_WAIT),
+	       mask_bits(regs, PSW_MASK_PSTATE), mask_bits(regs, PSW_MASK_ASC),
+	       mask_bits(regs, PSW_MASK_CC), mask_bits(regs, PSW_MASK_PM));
+#ifdef CONFIG_64BIT
+	printk(" EA:%x", mask_bits(regs, PSW_BASE_BITS));
+#endif
+	printk("\n%s GPRS: " FOURLONG, mode,
 	       regs->gprs[0], regs->gprs[1], regs->gprs[2], regs->gprs[3]);
 	printk("           " FOURLONG,
 	       regs->gprs[4], regs->gprs[5], regs->gprs[6], regs->gprs[7]);
@@ -208,41 +221,7 @@ void show_registers(struct pt_regs *regs)
 	printk("           " FOURLONG,
 	       regs->gprs[12], regs->gprs[13], regs->gprs[14], regs->gprs[15]);
 
-#if 0
-	/* FIXME: this isn't needed any more but it changes the ksymoops
-	 * input. To remove or not to remove ... */
-	save_access_regs(regs->acrs);
-	printk("%s ACRS: %08x %08x %08x %08x\n", mode,
-	       regs->acrs[0], regs->acrs[1], regs->acrs[2], regs->acrs[3]);
-	printk("           %08x %08x %08x %08x\n",
-	       regs->acrs[4], regs->acrs[5], regs->acrs[6], regs->acrs[7]);
-	printk("           %08x %08x %08x %08x\n",
-	       regs->acrs[8], regs->acrs[9], regs->acrs[10], regs->acrs[11]);
-	printk("           %08x %08x %08x %08x\n",
-	       regs->acrs[12], regs->acrs[13], regs->acrs[14], regs->acrs[15]);
-#endif
-
-	/*
-	 * Print the first 20 byte of the instruction stream at the
-	 * time of the fault.
-	 */
-	old_fs = get_fs();
-	if (regs->psw.mask & PSW_MASK_PSTATE)
-		set_fs(USER_DS);
-	else
-		set_fs(KERNEL_DS);
-	printk("%s Code: ", mode);
-	for (i = 0; i < 20; i++) {
-		unsigned char c;
-		if (__get_user(c, (char __user *)(regs->psw.addr + i))) {
-			printk(" Bad PSW.");
-			break;
-		}
-		printk("%02x ", c);
-	}
-	set_fs(old_fs);
-
-	printk("\n");
+	show_code(regs);
 }	
 
 /* This is called from fs/proc/array.c */
diff --git a/include/asm-s390/processor.h b/include/asm-s390/processor.h
index 33b80ced4bc1..96a6f80953a9 100644
--- a/include/asm-s390/processor.h
+++ b/include/asm-s390/processor.h
@@ -196,6 +196,7 @@ extern unsigned long thread_saved_pc(struct task_struct *t);
 extern char *task_show_regs(struct task_struct *task, char *buffer);
 
 extern void show_registers(struct pt_regs *regs);
+extern void show_code(struct pt_regs *regs);
 extern void show_trace(struct task_struct *task, unsigned long *sp);
 
 unsigned long get_wchan(struct task_struct *p);