Add binutils support for v850e1 processor

3 files changed, 91 insertions, 76 deletions

diff --git a/opcodes/ChangeLog b/opcodes/ChangeLog
index 2fb406d..4af9936 100644
--- a/opcodes/ChangeLog
+++ b/opcodes/ChangeLog
@@ -1,3 +1,8 @@
+2003-09-04  Nick Clifton  <nickc@redhat.com>
+
+	* v850-dis.c (disassemble): Accept bfd_mach_v850e1.
+	* v850-opc.c (v850_opcodes): Add DBTRAP and DBRET instructions.
+	
 2003-09-04  Alan Modra  <amodra@bigpond.net.au>
 
 	* ppc-dis.c (struct dis_private): New.
diff --git a/opcodes/v850-dis.c b/opcodes/v850-dis.c
index 7c449f6..b5022cd 100644
--- a/opcodes/v850-dis.c
+++ b/opcodes/v850-dis.c
@@ -1,20 +1,20 @@
 /* Disassemble V850 instructions.
-   Copyright 1996, 1997, 1998, 2000, 2001, 2002
+   Copyright 1996, 1997, 1998, 2000, 2001, 2002, 2003
    Free Software Foundation, Inc.
 
-This program is free software; you can redistribute it and/or modify
-it under the terms of the GNU General Public License as published by
-the Free Software Foundation; either version 2 of the License, or
-(at your option) any later version.
+   This program is free software; you can redistribute it and/or modify
+   it under the terms of the GNU General Public License as published by
+   the Free Software Foundation; either version 2 of the License, or
+   (at your option) any later version.
 
-This program is distributed in the hope that it will be useful,
-but WITHOUT ANY WARRANTY; without even the implied warranty of
-MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-GNU General Public License for more details.
+   This program is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU General Public License for more details.
 
-You should have received a copy of the GNU General Public License
-along with this program; if not, write to the Free Software
-Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.  */
+   You should have received a copy of the GNU General Public License
+   along with this program; if not, write to the Free Software
+   Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.  */
 
 
 #include <stdio.h>
@@ -78,6 +78,10 @@ disassemble (memaddr, info, insn)
     case bfd_mach_v850e:
       target_processor = PROCESSOR_V850E;
       break;
+
+    case bfd_mach_v850e1:
+      target_processor = PROCESSOR_V850E1;
+      break;
     }
   
   /* Find the opcode.  */
diff --git a/opcodes/v850-opc.c b/opcodes/v850-opc.c
index 94969ac..2249d16 100644
--- a/opcodes/v850-opc.c
+++ b/opcodes/v850-opc.c
@@ -1,37 +1,37 @@
 /* Assemble V850 instructions.
-   Copyright 1996, 1997, 1998, 2000, 2001 Free Software Foundation, Inc.
+   Copyright 1996, 1997, 1998, 2000, 2001, 2003 Free Software Foundation, Inc.
 
-This program is free software; you can redistribute it and/or modify
-it under the terms of the GNU General Public License as published by
-the Free Software Foundation; either version 2 of the License, or
-(at your option) any later version.
+   This program is free software; you can redistribute it and/or modify
+   it under the terms of the GNU General Public License as published by
+   the Free Software Foundation; either version 2 of the License, or
+   (at your option) any later version.
 
-This program is distributed in the hope that it will be useful,
-but WITHOUT ANY WARRANTY; without even the implied warranty of
-MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-GNU General Public License for more details.
+   This program is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU General Public License for more details.
 
-You should have received a copy of the GNU General Public License
-along with this program; if not, write to the Free Software
-Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.  */
+   You should have received a copy of the GNU General Public License
+   along with this program; if not, write to the Free Software
+   Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.  */
 
 #include "sysdep.h"
 #include "opcode/v850.h"
 #include <stdio.h>
 #include "opintl.h"
 
-/* regular opcode */
+/* Regular opcodes.  */
 #define OP(x)		((x & 0x3f) << 5)
 #define OP_MASK		OP (0x3f)
 
-/* conditional branch opcode */
+/* Conditional branch opcodes.  */
 #define BOP(x)		((0x0b << 7) | (x & 0x0f))
 #define BOP_MASK	((0x0f << 7) | 0x0f)
 
-/* one-word opcodes */
+/* One-word opcodes.  */
 #define one(x)		((unsigned int) (x))
 
-/* two-word opcodes */
+/* Two-word opcodes.  */
 #define two(x,y)	((unsigned int) (x) | ((unsigned int) (y) << 16))
 
 static long unsigned insert_d9      PARAMS ((long unsigned, long, const char **));
@@ -402,15 +402,15 @@ const struct v850_operand v850_operands[] =
 #define UNUSED	0
   { 0, 0, NULL, NULL, 0 }, 
 
-/* The R1 field in a format 1, 6, 7, or 9 insn. */
+/* The R1 field in a format 1, 6, 7, or 9 insn.  */
 #define R1	(UNUSED + 1)
   { 5, 0, NULL, NULL, V850_OPERAND_REG }, 
 
 /* As above, but register 0 is not allowed.  */
 #define R1_NOTR0 (R1 + 1)
-  { 5, 0, NULL, NULL, V850_OPERAND_REG | V850_NOT_R0 }, 
+  { 5, 0, NULL, NULL, V850_OPERAND_REG | V850_NOT_R0 },
 
-/* The R2 field in a format 1, 2, 4, 5, 6, 7, 9 insn. */
+/* The R2 field in a format 1, 2, 4, 5, 6, 7, 9 insn.  */
 #define R2	(R1_NOTR0 + 1)
   { 5, 11, NULL, NULL, V850_OPERAND_REG },
 
@@ -418,23 +418,23 @@ const struct v850_operand v850_operands[] =
 #define R2_NOTR0 (R2 + 1)
   { 5, 11, NULL, NULL, V850_OPERAND_REG | V850_NOT_R0 },
 
-/* The imm5 field in a format 2 insn. */
+/* The imm5 field in a format 2 insn.  */
 #define I5	(R2_NOTR0 + 1)
   { 5, 0, NULL, NULL, V850_OPERAND_SIGNED }, 
 
-/* The unsigned imm5 field in a format 2 insn. */
+/* The unsigned imm5 field in a format 2 insn.  */
 #define I5U	(I5 + 1)
   { 5, 0, NULL, NULL, 0 },
 
-/* The imm16 field in a format 6 insn. */
+/* The imm16 field in a format 6 insn.  */
 #define I16	(I5U + 1)
   { 16, 16, NULL, NULL, V850_OPERAND_SIGNED }, 
 
-/* The signed disp7 field in a format 4 insn. */
+/* The signed disp7 field in a format 4 insn.  */
 #define D7	(I16 + 1)
   { 7, 0, NULL, NULL, 0},
 
-/* The disp16 field in a format 6 insn. */
+/* The disp16 field in a format 6 insn.  */
 #define D16_15	(D7 + 1)
   { 15, 17, insert_d16_15, extract_d16_15, V850_OPERAND_SIGNED }, 
 
@@ -446,11 +446,11 @@ const struct v850_operand v850_operands[] =
 #define CCCC	(B3 + 1)
   { 4, 0, NULL, NULL, V850_OPERAND_CC },
 
-/* The unsigned DISP8 field in a format 4 insn. */
+/* The unsigned DISP8 field in a format 4 insn.  */
 #define D8_7	(CCCC + 1)
   { 7, 0, insert_d8_7, extract_d8_7, 0 },
 
-/* The unsigned DISP8 field in a format 4 insn. */
+/* The unsigned DISP8 field in a format 4 insn.  */
 #define D8_6	(D8_7 + 1)
   { 6, 1, insert_d8_6, extract_d8_6, 0 },
 
@@ -462,7 +462,7 @@ const struct v850_operand v850_operands[] =
 #define EP	(SR1 + 1)
   { 0, 0, NULL, NULL, V850_OPERAND_EP },
 
-/* The imm16 field (unsigned) in a format 6 insn. */
+/* The imm16 field (unsigned) in a format 6 insn.  */
 #define I16U	(EP + 1)
   { 16, 16, NULL, NULL, 0}, 
 
@@ -470,11 +470,11 @@ const struct v850_operand v850_operands[] =
 #define SR2	(I16U + 1)
   { 5, 11, NULL, NULL, V850_OPERAND_SRG },
 
-/* The disp16 field in a format 8 insn. */
+/* The disp16 field in a format 8 insn.  */
 #define D16	(SR2 + 1)
   { 16, 16, NULL, NULL, V850_OPERAND_SIGNED }, 
 
-/* The DISP9 field in a format 3 insn, relaxable. */
+/* The DISP9 field in a format 3 insn, relaxable.  */
 #define D9_RELAX	(D16 + 1)
   { 9, 0, insert_d9, extract_d9, V850_OPERAND_RELAX | V850_OPERAND_SIGNED | V850_OPERAND_DISP },
 
@@ -484,19 +484,19 @@ const struct v850_operand v850_operands[] =
 #define D22	(D9_RELAX + 1)
   { 22, 0, insert_d22, extract_d22, V850_OPERAND_SIGNED | V850_OPERAND_DISP },
 
-/* The signed disp4 field in a format 4 insn. */
+/* The signed disp4 field in a format 4 insn.  */
 #define D4	(D22 + 1)
   { 4, 0, NULL, NULL, 0},
 
-/* The unsigned disp5 field in a format 4 insn. */
+/* The unsigned disp5 field in a format 4 insn.  */
 #define D5_4	(D4 + 1)
   { 4, 0, insert_d5_4, extract_d5_4, 0 },
 
-/* The disp16 field in an format 7 unsigned byte load insn. */
+/* The disp16 field in an format 7 unsigned byte load insn.  */
 #define D16_16	(D5_4 + 1)
   { -1, 0xfffe0020, insert_d16_16, extract_d16_16, 0 }, 
 
-/* Third register in conditional moves. */
+/* Third register in conditional moves.  */
 #define R3	(D16_16 + 1)
   { 5, 27, NULL, NULL, V850_OPERAND_REG },
 
@@ -504,11 +504,11 @@ const struct v850_operand v850_operands[] =
 #define MOVCC	(R3 + 1)
   { 4, 17, NULL, NULL, V850_OPERAND_CC },
 
-/* The imm9 field in a multiply word. */
+/* The imm9 field in a multiply word.  */
 #define I9	(MOVCC + 1)
   { 9, 0, insert_i9, extract_i9, V850_OPERAND_SIGNED }, 
 
-/* The unsigned imm9 field in a multiply word. */
+/* The unsigned imm9 field in a multiply word.  */
 #define U9	(I9 + 1)
   { 9, 0, insert_u9, extract_u9, 0 }, 
 
@@ -516,7 +516,7 @@ const struct v850_operand v850_operands[] =
 #define LIST12	(U9 + 1)
   { -1, 0xffe00001, NULL, NULL, V850E_PUSH_POP }, 
 
-/* The IMM6 field in a call instruction. */
+/* The IMM6 field in a call instruction.  */
 #define I6	(LIST12 + 1)
   { 6, 0, NULL, NULL, 0 }, 
 
@@ -528,19 +528,19 @@ const struct v850_operand v850_operands[] =
 #define IMM32	(IMM16 + 1)
   { 0, 0, NULL, NULL, V850E_IMMEDIATE32 }, 
 
-/* The imm5 field in a push/pop instruction. */
+/* The imm5 field in a push/pop instruction.  */
 #define IMM5	(IMM32 + 1)
   { 5, 1, NULL, NULL, 0 }, 
 
-/* Reg2 in dispose instruction. */
+/* Reg2 in dispose instruction.  */
 #define R2DISPOSE	(IMM5 + 1)
   { 5, 16, NULL, NULL, V850_OPERAND_REG | V850_NOT_R0 },
 
-/* Stack pointer in prepare instruction. */
+/* Stack pointer in prepare instruction.  */
 #define SP	(R2DISPOSE + 1)
   { 2, 19, insert_spe, extract_spe, V850_OPERAND_REG },
 
-/* The IMM5 field in a divide N step instruction. */
+/* The IMM5 field in a divide N step instruction.  */
 #define I5DIV	(SP + 1)
   { 9, 0, insert_i5div, extract_i5div, V850_OPERAND_SIGNED }, 
 
@@ -550,23 +550,24 @@ const struct v850_operand v850_operands[] =
 
   /* The list of registers in a PUSHML/POPML instruction.  */
 #define LIST18_L (LIST18_H + 1)
-  { -1, 0xfff8001f, NULL, NULL, V850E_PUSH_POP }, /* The setting of the 4th bit is a flag to disassmble() in v850-dis.c */
+  /* The setting of the 4th bit is a flag to disassmble() in v850-dis.c.  */
+  { -1, 0xfff8001f, NULL, NULL, V850E_PUSH_POP },
 } ; 
 
 
-/* reg-reg instruction format (Format I) */
+/* Reg - Reg instruction format (Format I).  */
 #define IF1	{R1, R2}
 
-/* imm-reg instruction format (Format II) */
+/* Imm - Reg instruction format (Format II).  */
 #define IF2	{I5, R2}
 
-/* conditional branch instruction format (Format III) */
+/* Conditional branch instruction format (Format III).  */
 #define IF3	{D9_RELAX}
 
-/* 3 operand instruction (Format VI) */
+/* 3 operand instruction (Format VI).  */
 #define IF6	{I16, R1, R2}
 
-/* 3 operand instruction (Format VI) */
+/* 3 operand instruction (Format VI).  */
 #define IF6U	{I16U, R1, R2}
 
 
@@ -604,17 +605,22 @@ const struct v850_operand v850_operands[] =
 const struct v850_opcode v850_opcodes[] =
 {
 { "breakpoint",	0xffff,			0xffff,		      	{UNUSED},   		0, PROCESSOR_ALL },
+{ "dbtrap",	one (0xf840),		one (0xffff),		{UNUSED},   		0, PROCESSOR_V850E1 },
 
 { "jmp",	one (0x0060),		one (0xffe0),	      	{R1}, 			1, PROCESSOR_ALL },
   
-/* load/store instructions */
+/* Load/store instructions.  */
+{ "sld.bu",     one (0x0060),		one (0x07f0),         	{D4,   EP,   R2_NOTR0},	1, PROCESSOR_V850E1 },
 { "sld.bu",     one (0x0060),		one (0x07f0),         	{D4,   EP,   R2_NOTR0},	1, PROCESSOR_V850E },
 
+{ "sld.hu",     one (0x0070),		one (0x07f0),         	{D5_4, EP,   R2_NOTR0},	1, PROCESSOR_V850E1 },
 { "sld.hu",     one (0x0070),		one (0x07f0),         	{D5_4, EP,   R2_NOTR0},	1, PROCESSOR_V850E },
 
+{ "sld.b",	one (0x0300),		one (0x0780),	      	{D7,   EP,   R2},	1, PROCESSOR_V850E1 },
 { "sld.b",	one (0x0300),		one (0x0780),	      	{D7,   EP,   R2},	1, PROCESSOR_V850E },
 { "sld.b",	one (0x0300),		one (0x0780),	      	{D7,   EP,   R2},	1, PROCESSOR_V850 },
 
+{ "sld.h",	one (0x0400),		one (0x0780),	      	{D8_7, EP,   R2}, 	1, PROCESSOR_V850E1 },
 { "sld.h",	one (0x0400),		one (0x0780),	      	{D8_7, EP,   R2}, 	1, PROCESSOR_V850E },
 { "sld.h",	one (0x0400),		one (0x0780),	      	{D8_7, EP,   R2}, 	1, PROCESSOR_V850 },
 { "sld.w",	one (0x0500),		one (0x0781),	      	{D8_6, EP,   R2}, 	1, PROCESSOR_ALL },
@@ -639,7 +645,7 @@ const struct v850_opcode v850_opcodes[] =
 { "st.h",	two (0x0760, 0x0000),	two (0x07e0, 0x0001), 	{R2, D16_15, R1}, 	2, PROCESSOR_ALL },
 { "st.w",	two (0x0760, 0x0001),	two (0x07e0, 0x0001), 	{R2, D16_15, R1}, 	2, PROCESSOR_ALL },
 
-/* byte swap/extend instructions */
+/* Byte swap/extend instructions.  */
 { "zxb",	one (0x0080),		one (0xffe0), 	      	{R1_NOTR0},		0, PROCESSOR_NOT_V850 },
 { "zxh",	one (0x00c0),		one (0xffe0), 	      	{R1_NOTR0}, 		0, PROCESSOR_NOT_V850 },
 { "sxb",	one (0x00a0),		one (0xffe0), 	      	{R1_NOTR0},		0, PROCESSOR_NOT_V850 },
@@ -648,12 +654,12 @@ const struct v850_opcode v850_opcodes[] =
 { "bsw",	two (0x07e0, 0x0340),	two (0x07ff, 0x07ff), 	{R2, R3}, 		0, PROCESSOR_NOT_V850 },
 { "hsw",	two (0x07e0, 0x0344),	two (0x07ff, 0x07ff), 	{R2, R3}, 		0, PROCESSOR_NOT_V850 },
 
-/* jump table instructions */
+/* Jump table instructions.  */
 { "switch",	one (0x0040),		one (0xffe0), 	      	{R1}, 			1, PROCESSOR_NOT_V850 },
 { "callt",	one (0x0200),		one (0xffc0), 	      	{I6}, 			0, PROCESSOR_NOT_V850 },
 { "ctret", 	two (0x07e0, 0x0144),	two (0xffff, 0xffff), 	{0}, 			0, PROCESSOR_NOT_V850 },
 
-/* arithmetic operation instructions */
+/* Arithmetic operation instructions.  */
 { "setf",	two (0x07e0, 0x0000),	two (0x07f0, 0xffff), 	{CCCC, R2}, 		0, PROCESSOR_ALL },
 { "cmov",	two (0x07e0, 0x0320),	two (0x07e0, 0x07e1), 	{MOVCC, R1, R2, R3}, 	0, PROCESSOR_NOT_V850 },
 { "cmov",	two (0x07e0, 0x0300),	two (0x07e0, 0x07e1), 	{MOVCC, I5, R2, R3}, 	0, PROCESSOR_NOT_V850 },
@@ -686,14 +692,14 @@ const struct v850_opcode v850_opcodes[] =
 { "cmp",	OP  (0x0f),		OP_MASK,		IF1, 			0, PROCESSOR_ALL },
 { "cmp",	OP  (0x13),		OP_MASK,		IF2, 			0, PROCESSOR_ALL },
   
-/* saturated operation instructions */
+/* Saturated operation instructions.  */
 { "satadd",	OP (0x11),		OP_MASK,		{I5, R2_NOTR0},		0, PROCESSOR_ALL },
 { "satadd",	OP (0x06),		OP_MASK,		{R1, R2_NOTR0},		0, PROCESSOR_ALL },
 { "satsub",	OP (0x05),		OP_MASK,		{R1, R2_NOTR0},		0, PROCESSOR_ALL },
 { "satsubi",	OP (0x33),		OP_MASK,		{I16, R1, R2_NOTR0},	0, PROCESSOR_ALL },
 { "satsubr",	OP (0x04),		OP_MASK,		{R1, R2_NOTR0},		0, PROCESSOR_ALL },
 
-/* logical operation instructions */
+/* Logical operation instructions.  */
 { "tst",	OP (0x0b),		OP_MASK,		IF1, 			0, PROCESSOR_ALL },
 { "or",		OP (0x08),		OP_MASK,		IF1, 			0, PROCESSOR_ALL },
 { "ori",	OP (0x34),		OP_MASK,		IF6U, 			0, PROCESSOR_ALL },
@@ -710,21 +716,21 @@ const struct v850_opcode v850_opcodes[] =
 { "shr",	two (0x07e0, 0x0080),	two (0x07e0, 0xffff), 	{R1,  R2}, 		0, PROCESSOR_ALL },
 { "sasf",       two (0x07e0, 0x0200),	two (0x07f0, 0xffff), 	{CCCC, R2}, 		0, PROCESSOR_NOT_V850 },
 
-/* branch instructions */
-	/* signed integer */
+/* Branch instructions.  */
+	/* Signed integer.  */
 { "bgt",	BOP (0xf),		BOP_MASK,		IF3, 			0, PROCESSOR_ALL },
 { "bge",	BOP (0xe),		BOP_MASK,		IF3, 			0, PROCESSOR_ALL },
 { "blt",	BOP (0x6),		BOP_MASK,		IF3, 			0, PROCESSOR_ALL },
 { "ble",	BOP (0x7),		BOP_MASK,		IF3, 			0, PROCESSOR_ALL },
-	/* unsigned integer */
+	/* Unsigned integer.  */
 { "bh",		BOP (0xb),		BOP_MASK,		IF3, 			0, PROCESSOR_ALL },
 { "bnh",	BOP (0x3),		BOP_MASK,		IF3, 			0, PROCESSOR_ALL },
 { "bl",		BOP (0x1),		BOP_MASK,		IF3, 			0, PROCESSOR_ALL },
 { "bnl",	BOP (0x9),		BOP_MASK,		IF3, 			0, PROCESSOR_ALL },
-	/* common */
+	/* Common.  */
 { "be",		BOP (0x2),		BOP_MASK,		IF3, 			0, PROCESSOR_ALL },
 { "bne",	BOP (0xa),		BOP_MASK,		IF3, 			0, PROCESSOR_ALL },
-	/* others */
+	/* Others.  */
 { "bv",		BOP (0x0),		BOP_MASK,		IF3, 			0, PROCESSOR_ALL },
 { "bnv",	BOP (0x8),		BOP_MASK,		IF3, 			0, PROCESSOR_ALL },
 { "bn",		BOP (0x4),		BOP_MASK,		IF3, 			0, PROCESSOR_ALL },
@@ -741,20 +747,20 @@ const struct v850_opcode v850_opcodes[] =
    We use the short form in the opcode/mask fields.  The assembler
    will twiddle bits as necessary if the long form is needed.  */
 
-	/* signed integer */
+	/* Signed integer.  */
 { "jgt",	BOP (0xf),		BOP_MASK,		IF3, 			0, PROCESSOR_ALL },
 { "jge",	BOP (0xe),		BOP_MASK,		IF3, 			0, PROCESSOR_ALL },
 { "jlt",	BOP (0x6),		BOP_MASK,		IF3, 			0, PROCESSOR_ALL },
 { "jle",	BOP (0x7),		BOP_MASK,		IF3, 			0, PROCESSOR_ALL },
-	/* unsigned integer */
+	/* Unsigned integer.  */
 { "jh",		BOP (0xb),		BOP_MASK,		IF3, 			0, PROCESSOR_ALL },
 { "jnh",	BOP (0x3),		BOP_MASK,		IF3, 			0, PROCESSOR_ALL },
 { "jl",		BOP (0x1),		BOP_MASK,		IF3, 			0, PROCESSOR_ALL },
 { "jnl",	BOP (0x9),		BOP_MASK,		IF3, 			0, PROCESSOR_ALL },
-	/* common */
+	/* Common.  */
 { "je",		BOP (0x2),		BOP_MASK,		IF3, 			0, PROCESSOR_ALL },
 { "jne",	BOP (0xa),		BOP_MASK,		IF3, 			0, PROCESSOR_ALL },
-	/* others */
+	/* Others.  */
 { "jv",		BOP (0x0),		BOP_MASK,		IF3, 			0, PROCESSOR_ALL },
 { "jnv",	BOP (0x8),		BOP_MASK,		IF3, 			0, PROCESSOR_ALL },
 { "jn",		BOP (0x4),		BOP_MASK,		IF3, 			0, PROCESSOR_ALL },
@@ -769,7 +775,7 @@ const struct v850_opcode v850_opcodes[] =
 { "jr",		one (0x0780),		two (0xffc0, 0x0001),	{D22}, 			0, PROCESSOR_ALL },
 { "jarl",	one (0x0780),		two (0x07c0, 0x0001),	{D22, R2}, 		0, PROCESSOR_ALL}, 
 
-/* bit manipulation instructions */
+/* Bit manipulation instructions.  */
 { "set1",	two (0x07c0, 0x0000),	two (0xc7e0, 0x0000),	{B3, D16, R1}, 		2, PROCESSOR_ALL },
 { "set1",	two (0x07e0, 0x00e0),	two (0x07e0, 0xffff),	{R2, R1},    		2, PROCESSOR_NOT_V850 },
 { "not1",	two (0x47c0, 0x0000),	two (0xc7e0, 0x0000),	{B3, D16, R1}, 		2, PROCESSOR_ALL },
@@ -779,7 +785,7 @@ const struct v850_opcode v850_opcodes[] =
 { "tst1",	two (0xc7c0, 0x0000),	two (0xc7e0, 0x0000),	{B3, D16, R1}, 		2, PROCESSOR_ALL },
 { "tst1",	two (0x07e0, 0x00e6),	two (0x07e0, 0xffff),	{R2, R1},    		2, PROCESSOR_NOT_V850 },
 
-/* special instructions */
+/* Special instructions.  */
 { "di",		two (0x07e0, 0x0160),	two (0xffff, 0xffff),	{0}, 			0, PROCESSOR_ALL },
 { "ei",		two (0x87e0, 0x0160),	two (0xffff, 0xffff),	{0}, 			0, PROCESSOR_ALL },
 { "halt",	two (0x07e0, 0x0120),	two (0xffff, 0xffff),	{0}, 			0, PROCESSOR_ALL },
@@ -787,10 +793,10 @@ const struct v850_opcode v850_opcodes[] =
 { "trap",	two (0x07e0, 0x0100),	two (0xffe0, 0xffff),	{I5U}, 			0, PROCESSOR_ALL },
 { "ldsr",	two (0x07e0, 0x0020),	two (0x07e0, 0xffff),	{R1, SR2}, 		0, PROCESSOR_ALL },
 { "stsr",	two (0x07e0, 0x0040),	two (0x07e0, 0xffff),	{SR1, R2}, 		0, PROCESSOR_ALL },
+{ "dbret",	two (0x07e0, 0x0146),	two (0xffff, 0xffff),	{UNUSED},   		0, PROCESSOR_V850E1 },
 { 0, 0, 0, {0}, 0, 0 },
 
 } ;
 
 const int v850_num_opcodes =
   sizeof (v850_opcodes) / sizeof (v850_opcodes[0]);
-