Add LM32 port.cgen-snapshot-20090101

1 files changed, 1183 insertions, 0 deletions

diff --git a/opcodes/lm32-desc.c b/opcodes/lm32-desc.c
new file mode 100644
index 0000000000..c18f86139d
--- /dev/null
+++ b/opcodes/lm32-desc.c
@@ -0,0 +1,1183 @@
+/* CPU data for lm32.
+
+THIS FILE IS MACHINE GENERATED WITH CGEN.
+
+Copyright 1996-2007 Free Software Foundation, Inc.
+
+This file is part of the GNU Binutils and/or GDB, the GNU debugger.
+
+   This file 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 3, or (at your option)
+   any later version.
+
+   It 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.,
+   51 Franklin Street - Fifth Floor, Boston, MA 02110-1301, USA.
+
+*/
+
+#include "sysdep.h"
+#include <stdio.h>
+#include <stdarg.h>
+#include "ansidecl.h"
+#include "bfd.h"
+#include "symcat.h"
+#include "lm32-desc.h"
+#include "lm32-opc.h"
+#include "opintl.h"
+#include "libiberty.h"
+#include "xregex.h"
+
+/* Attributes.  */
+
+static const CGEN_ATTR_ENTRY bool_attr[] =
+{
+  { "#f", 0 },
+  { "#t", 1 },
+  { 0, 0 }
+};
+
+static const CGEN_ATTR_ENTRY MACH_attr[] ATTRIBUTE_UNUSED =
+{
+  { "base", MACH_BASE },
+  { "lm32", MACH_LM32 },
+  { "max", MACH_MAX },
+  { 0, 0 }
+};
+
+static const CGEN_ATTR_ENTRY ISA_attr[] ATTRIBUTE_UNUSED =
+{
+  { "lm32", ISA_LM32 },
+  { "max", ISA_MAX },
+  { 0, 0 }
+};
+
+const CGEN_ATTR_TABLE lm32_cgen_ifield_attr_table[] =
+{
+  { "MACH", & MACH_attr[0], & MACH_attr[0] },
+  { "VIRTUAL", &bool_attr[0], &bool_attr[0] },
+  { "PCREL-ADDR", &bool_attr[0], &bool_attr[0] },
+  { "ABS-ADDR", &bool_attr[0], &bool_attr[0] },
+  { "RESERVED", &bool_attr[0], &bool_attr[0] },
+  { "SIGN-OPT", &bool_attr[0], &bool_attr[0] },
+  { "SIGNED", &bool_attr[0], &bool_attr[0] },
+  { 0, 0, 0 }
+};
+
+const CGEN_ATTR_TABLE lm32_cgen_hardware_attr_table[] =
+{
+  { "MACH", & MACH_attr[0], & MACH_attr[0] },
+  { "VIRTUAL", &bool_attr[0], &bool_attr[0] },
+  { "CACHE-ADDR", &bool_attr[0], &bool_attr[0] },
+  { "PC", &bool_attr[0], &bool_attr[0] },
+  { "PROFILE", &bool_attr[0], &bool_attr[0] },
+  { 0, 0, 0 }
+};
+
+const CGEN_ATTR_TABLE lm32_cgen_operand_attr_table[] =
+{
+  { "MACH", & MACH_attr[0], & MACH_attr[0] },
+  { "VIRTUAL", &bool_attr[0], &bool_attr[0] },
+  { "PCREL-ADDR", &bool_attr[0], &bool_attr[0] },
+  { "ABS-ADDR", &bool_attr[0], &bool_attr[0] },
+  { "SIGN-OPT", &bool_attr[0], &bool_attr[0] },
+  { "SIGNED", &bool_attr[0], &bool_attr[0] },
+  { "NEGATIVE", &bool_attr[0], &bool_attr[0] },
+  { "RELAX", &bool_attr[0], &bool_attr[0] },
+  { "SEM-ONLY", &bool_attr[0], &bool_attr[0] },
+  { 0, 0, 0 }
+};
+
+const CGEN_ATTR_TABLE lm32_cgen_insn_attr_table[] =
+{
+  { "MACH", & MACH_attr[0], & MACH_attr[0] },
+  { "ALIAS", &bool_attr[0], &bool_attr[0] },
+  { "VIRTUAL", &bool_attr[0], &bool_attr[0] },
+  { "UNCOND-CTI", &bool_attr[0], &bool_attr[0] },
+  { "COND-CTI", &bool_attr[0], &bool_attr[0] },
+  { "SKIP-CTI", &bool_attr[0], &bool_attr[0] },
+  { "DELAY-SLOT", &bool_attr[0], &bool_attr[0] },
+  { "RELAXABLE", &bool_attr[0], &bool_attr[0] },
+  { "RELAXED", &bool_attr[0], &bool_attr[0] },
+  { "NO-DIS", &bool_attr[0], &bool_attr[0] },
+  { "PBB", &bool_attr[0], &bool_attr[0] },
+  { 0, 0, 0 }
+};
+
+/* Instruction set variants.  */
+
+static const CGEN_ISA lm32_cgen_isa_table[] = {
+  { "lm32", 32, 32, 32, 32 },
+  { 0, 0, 0, 0, 0 }
+};
+
+/* Machine variants.  */
+
+static const CGEN_MACH lm32_cgen_mach_table[] = {
+  { "lm32", "lm32", MACH_LM32, 0 },
+  { 0, 0, 0, 0 }
+};
+
+static CGEN_KEYWORD_ENTRY lm32_cgen_opval_h_gr_entries[] =
+{
+  { "gp", 26, {0, {{{0, 0}}}}, 0, 0 },
+  { "fp", 27, {0, {{{0, 0}}}}, 0, 0 },
+  { "sp", 28, {0, {{{0, 0}}}}, 0, 0 },
+  { "ra", 29, {0, {{{0, 0}}}}, 0, 0 },
+  { "ea", 30, {0, {{{0, 0}}}}, 0, 0 },
+  { "ba", 31, {0, {{{0, 0}}}}, 0, 0 },
+  { "r0", 0, {0, {{{0, 0}}}}, 0, 0 },
+  { "r1", 1, {0, {{{0, 0}}}}, 0, 0 },
+  { "r2", 2, {0, {{{0, 0}}}}, 0, 0 },
+  { "r3", 3, {0, {{{0, 0}}}}, 0, 0 },
+  { "r4", 4, {0, {{{0, 0}}}}, 0, 0 },
+  { "r5", 5, {0, {{{0, 0}}}}, 0, 0 },
+  { "r6", 6, {0, {{{0, 0}}}}, 0, 0 },
+  { "r7", 7, {0, {{{0, 0}}}}, 0, 0 },
+  { "r8", 8, {0, {{{0, 0}}}}, 0, 0 },
+  { "r9", 9, {0, {{{0, 0}}}}, 0, 0 },
+  { "r10", 10, {0, {{{0, 0}}}}, 0, 0 },
+  { "r11", 11, {0, {{{0, 0}}}}, 0, 0 },
+  { "r12", 12, {0, {{{0, 0}}}}, 0, 0 },
+  { "r13", 13, {0, {{{0, 0}}}}, 0, 0 },
+  { "r14", 14, {0, {{{0, 0}}}}, 0, 0 },
+  { "r15", 15, {0, {{{0, 0}}}}, 0, 0 },
+  { "r16", 16, {0, {{{0, 0}}}}, 0, 0 },
+  { "r17", 17, {0, {{{0, 0}}}}, 0, 0 },
+  { "r18", 18, {0, {{{0, 0}}}}, 0, 0 },
+  { "r19", 19, {0, {{{0, 0}}}}, 0, 0 },
+  { "r20", 20, {0, {{{0, 0}}}}, 0, 0 },
+  { "r21", 21, {0, {{{0, 0}}}}, 0, 0 },
+  { "r22", 22, {0, {{{0, 0}}}}, 0, 0 },
+  { "r23", 23, {0, {{{0, 0}}}}, 0, 0 },
+  { "r24", 24, {0, {{{0, 0}}}}, 0, 0 },
+  { "r25", 25, {0, {{{0, 0}}}}, 0, 0 },
+  { "r26", 26, {0, {{{0, 0}}}}, 0, 0 },
+  { "r27", 27, {0, {{{0, 0}}}}, 0, 0 },
+  { "r28", 28, {0, {{{0, 0}}}}, 0, 0 },
+  { "r29", 29, {0, {{{0, 0}}}}, 0, 0 },
+  { "r30", 30, {0, {{{0, 0}}}}, 0, 0 },
+  { "r31", 31, {0, {{{0, 0}}}}, 0, 0 }
+};
+
+CGEN_KEYWORD lm32_cgen_opval_h_gr =
+{
+  & lm32_cgen_opval_h_gr_entries[0],
+  38,
+  0, 0, 0, 0, ""
+};
+
+static CGEN_KEYWORD_ENTRY lm32_cgen_opval_h_csr_entries[] =
+{
+  { "IE", 0, {0, {{{0, 0}}}}, 0, 0 },
+  { "IM", 1, {0, {{{0, 0}}}}, 0, 0 },
+  { "IP", 2, {0, {{{0, 0}}}}, 0, 0 },
+  { "ICC", 3, {0, {{{0, 0}}}}, 0, 0 },
+  { "DCC", 4, {0, {{{0, 0}}}}, 0, 0 },
+  { "CC", 5, {0, {{{0, 0}}}}, 0, 0 },
+  { "CFG", 6, {0, {{{0, 0}}}}, 0, 0 },
+  { "EBA", 7, {0, {{{0, 0}}}}, 0, 0 },
+  { "DC", 8, {0, {{{0, 0}}}}, 0, 0 },
+  { "DEBA", 9, {0, {{{0, 0}}}}, 0, 0 },
+  { "JTX", 14, {0, {{{0, 0}}}}, 0, 0 },
+  { "JRX", 15, {0, {{{0, 0}}}}, 0, 0 },
+  { "BP0", 16, {0, {{{0, 0}}}}, 0, 0 },
+  { "BP1", 17, {0, {{{0, 0}}}}, 0, 0 },
+  { "BP2", 18, {0, {{{0, 0}}}}, 0, 0 },
+  { "BP3", 19, {0, {{{0, 0}}}}, 0, 0 },
+  { "WP0", 24, {0, {{{0, 0}}}}, 0, 0 },
+  { "WP1", 25, {0, {{{0, 0}}}}, 0, 0 },
+  { "WP2", 26, {0, {{{0, 0}}}}, 0, 0 },
+  { "WP3", 27, {0, {{{0, 0}}}}, 0, 0 }
+};
+
+CGEN_KEYWORD lm32_cgen_opval_h_csr =
+{
+  & lm32_cgen_opval_h_csr_entries[0],
+  20,
+  0, 0, 0, 0, ""
+};
+
+
+/* The hardware table.  */
+
+#if defined (__STDC__) || defined (ALMOST_STDC) || defined (HAVE_STRINGIZE)
+#define A(a) (1 << CGEN_HW_##a)
+#else
+#define A(a) (1 << CGEN_HW_/**/a)
+#endif
+
+const CGEN_HW_ENTRY lm32_cgen_hw_table[] =
+{
+  { "h-memory", HW_H_MEMORY, CGEN_ASM_NONE, 0, { 0, { { { (1<<MACH_BASE), 0 } } } } },
+  { "h-sint", HW_H_SINT, CGEN_ASM_NONE, 0, { 0, { { { (1<<MACH_BASE), 0 } } } } },
+  { "h-uint", HW_H_UINT, CGEN_ASM_NONE, 0, { 0, { { { (1<<MACH_BASE), 0 } } } } },
+  { "h-addr", HW_H_ADDR, CGEN_ASM_NONE, 0, { 0, { { { (1<<MACH_BASE), 0 } } } } },
+  { "h-iaddr", HW_H_IADDR, CGEN_ASM_NONE, 0, { 0, { { { (1<<MACH_BASE), 0 } } } } },
+  { "h-pc", HW_H_PC, CGEN_ASM_NONE, 0, { 0|A(PC), { { { (1<<MACH_BASE), 0 } } } } },
+  { "h-gr", HW_H_GR, CGEN_ASM_KEYWORD, (PTR) & lm32_cgen_opval_h_gr, { 0, { { { (1<<MACH_BASE), 0 } } } } },
+  { "h-csr", HW_H_CSR, CGEN_ASM_KEYWORD, (PTR) & lm32_cgen_opval_h_csr, { 0, { { { (1<<MACH_BASE), 0 } } } } },
+  { 0, 0, CGEN_ASM_NONE, 0, { 0, { { { (1<<MACH_BASE), 0 } } } } }
+};
+
+#undef A
+
+
+/* The instruction field table.  */
+
+#if defined (__STDC__) || defined (ALMOST_STDC) || defined (HAVE_STRINGIZE)
+#define A(a) (1 << CGEN_IFLD_##a)
+#else
+#define A(a) (1 << CGEN_IFLD_/**/a)
+#endif
+
+const CGEN_IFLD lm32_cgen_ifld_table[] =
+{
+  { LM32_F_NIL, "f-nil", 0, 0, 0, 0, { 0, { { { (1<<MACH_BASE), 0 } } } }  },
+  { LM32_F_ANYOF, "f-anyof", 0, 0, 0, 0, { 0, { { { (1<<MACH_BASE), 0 } } } }  },
+  { LM32_F_OPCODE, "f-opcode", 0, 32, 31, 6, { 0, { { { (1<<MACH_BASE), 0 } } } }  },
+  { LM32_F_R0, "f-r0", 0, 32, 25, 5, { 0, { { { (1<<MACH_BASE), 0 } } } }  },
+  { LM32_F_R1, "f-r1", 0, 32, 20, 5, { 0, { { { (1<<MACH_BASE), 0 } } } }  },
+  { LM32_F_R2, "f-r2", 0, 32, 15, 5, { 0, { { { (1<<MACH_BASE), 0 } } } }  },
+  { LM32_F_RESV0, "f-resv0", 0, 32, 10, 11, { 0|A(RESERVED), { { { (1<<MACH_BASE), 0 } } } }  },
+  { LM32_F_SHIFT, "f-shift", 0, 32, 4, 5, { 0, { { { (1<<MACH_BASE), 0 } } } }  },
+  { LM32_F_IMM, "f-imm", 0, 32, 15, 16, { 0, { { { (1<<MACH_BASE), 0 } } } }  },
+  { LM32_F_UIMM, "f-uimm", 0, 32, 15, 16, { 0, { { { (1<<MACH_BASE), 0 } } } }  },
+  { LM32_F_CSR, "f-csr", 0, 32, 25, 5, { 0, { { { (1<<MACH_BASE), 0 } } } }  },
+  { LM32_F_USER, "f-user", 0, 32, 10, 11, { 0, { { { (1<<MACH_BASE), 0 } } } }  },
+  { LM32_F_EXCEPTION, "f-exception", 0, 32, 25, 26, { 0, { { { (1<<MACH_BASE), 0 } } } }  },
+  { LM32_F_BRANCH, "f-branch", 0, 32, 15, 16, { 0|A(PCREL_ADDR), { { { (1<<MACH_BASE), 0 } } } }  },
+  { LM32_F_CALL, "f-call", 0, 32, 25, 26, { 0|A(PCREL_ADDR), { { { (1<<MACH_BASE), 0 } } } }  },
+  { 0, 0, 0, 0, 0, 0, { 0, { { { (1<<MACH_BASE), 0 } } } } }
+};
+
+#undef A
+
+
+
+/* multi ifield declarations */
+
+
+
+/* multi ifield definitions */
+
+
+/* The operand table.  */
+
+#if defined (__STDC__) || defined (ALMOST_STDC) || defined (HAVE_STRINGIZE)
+#define A(a) (1 << CGEN_OPERAND_##a)
+#else
+#define A(a) (1 << CGEN_OPERAND_/**/a)
+#endif
+#if defined (__STDC__) || defined (ALMOST_STDC) || defined (HAVE_STRINGIZE)
+#define OPERAND(op) LM32_OPERAND_##op
+#else
+#define OPERAND(op) LM32_OPERAND_/**/op
+#endif
+
+const CGEN_OPERAND lm32_cgen_operand_table[] =
+{
+/* pc: program counter */
+  { "pc", LM32_OPERAND_PC, HW_H_PC, 0, 0,
+    { 0, { (const PTR) &lm32_cgen_ifld_table[LM32_F_NIL] } }, 
+    { 0|A(SEM_ONLY), { { { (1<<MACH_BASE), 0 } } } }  },
+/* r0: register 0 */
+  { "r0", LM32_OPERAND_R0, HW_H_GR, 25, 5,
+    { 0, { (const PTR) &lm32_cgen_ifld_table[LM32_F_R0] } }, 
+    { 0, { { { (1<<MACH_BASE), 0 } } } }  },
+/* r1: register 1 */
+  { "r1", LM32_OPERAND_R1, HW_H_GR, 20, 5,
+    { 0, { (const PTR) &lm32_cgen_ifld_table[LM32_F_R1] } }, 
+    { 0, { { { (1<<MACH_BASE), 0 } } } }  },
+/* r2: register 2 */
+  { "r2", LM32_OPERAND_R2, HW_H_GR, 15, 5,
+    { 0, { (const PTR) &lm32_cgen_ifld_table[LM32_F_R2] } }, 
+    { 0, { { { (1<<MACH_BASE), 0 } } } }  },
+/* shift: shift amout */
+  { "shift", LM32_OPERAND_SHIFT, HW_H_UINT, 4, 5,
+    { 0, { (const PTR) &lm32_cgen_ifld_table[LM32_F_SHIFT] } }, 
+    { 0, { { { (1<<MACH_BASE), 0 } } } }  },
+/* imm: signed immediate */
+  { "imm", LM32_OPERAND_IMM, HW_H_SINT, 15, 16,
+    { 0, { (const PTR) &lm32_cgen_ifld_table[LM32_F_IMM] } }, 
+    { 0, { { { (1<<MACH_BASE), 0 } } } }  },
+/* uimm: unsigned immediate */
+  { "uimm", LM32_OPERAND_UIMM, HW_H_UINT, 15, 16,
+    { 0, { (const PTR) &lm32_cgen_ifld_table[LM32_F_UIMM] } }, 
+    { 0, { { { (1<<MACH_BASE), 0 } } } }  },
+/* branch: branch offset */
+  { "branch", LM32_OPERAND_BRANCH, HW_H_IADDR, 15, 16,
+    { 0, { (const PTR) &lm32_cgen_ifld_table[LM32_F_BRANCH] } }, 
+    { 0|A(PCREL_ADDR), { { { (1<<MACH_BASE), 0 } } } }  },
+/* call: call offset */
+  { "call", LM32_OPERAND_CALL, HW_H_IADDR, 25, 26,
+    { 0, { (const PTR) &lm32_cgen_ifld_table[LM32_F_CALL] } }, 
+    { 0|A(PCREL_ADDR), { { { (1<<MACH_BASE), 0 } } } }  },
+/* csr: csr */
+  { "csr", LM32_OPERAND_CSR, HW_H_CSR, 25, 5,
+    { 0, { (const PTR) &lm32_cgen_ifld_table[LM32_F_CSR] } }, 
+    { 0, { { { (1<<MACH_BASE), 0 } } } }  },
+/* user: user */
+  { "user", LM32_OPERAND_USER, HW_H_UINT, 10, 11,
+    { 0, { (const PTR) &lm32_cgen_ifld_table[LM32_F_USER] } }, 
+    { 0, { { { (1<<MACH_BASE), 0 } } } }  },
+/* exception: exception */
+  { "exception", LM32_OPERAND_EXCEPTION, HW_H_UINT, 25, 26,
+    { 0, { (const PTR) &lm32_cgen_ifld_table[LM32_F_EXCEPTION] } }, 
+    { 0, { { { (1<<MACH_BASE), 0 } } } }  },
+/* hi16: high 16-bit immediate */
+  { "hi16", LM32_OPERAND_HI16, HW_H_UINT, 15, 16,
+    { 0, { (const PTR) &lm32_cgen_ifld_table[LM32_F_UIMM] } }, 
+    { 0, { { { (1<<MACH_BASE), 0 } } } }  },
+/* lo16: low 16-bit immediate */
+  { "lo16", LM32_OPERAND_LO16, HW_H_UINT, 15, 16,
+    { 0, { (const PTR) &lm32_cgen_ifld_table[LM32_F_UIMM] } }, 
+    { 0, { { { (1<<MACH_BASE), 0 } } } }  },
+/* gp16: gp relative 16-bit immediate */
+  { "gp16", LM32_OPERAND_GP16, HW_H_SINT, 15, 16,
+    { 0, { (const PTR) &lm32_cgen_ifld_table[LM32_F_IMM] } }, 
+    { 0, { { { (1<<MACH_BASE), 0 } } } }  },
+/* got16: got 16-bit immediate */
+  { "got16", LM32_OPERAND_GOT16, HW_H_SINT, 15, 16,
+    { 0, { (const PTR) &lm32_cgen_ifld_table[LM32_F_IMM] } }, 
+    { 0, { { { (1<<MACH_BASE), 0 } } } }  },
+/* gotoffhi16: got offset high 16-bit immediate */
+  { "gotoffhi16", LM32_OPERAND_GOTOFFHI16, HW_H_SINT, 15, 16,
+    { 0, { (const PTR) &lm32_cgen_ifld_table[LM32_F_IMM] } }, 
+    { 0, { { { (1<<MACH_BASE), 0 } } } }  },
+/* gotofflo16: got offset low 16-bit immediate */
+  { "gotofflo16", LM32_OPERAND_GOTOFFLO16, HW_H_SINT, 15, 16,
+    { 0, { (const PTR) &lm32_cgen_ifld_table[LM32_F_IMM] } }, 
+    { 0, { { { (1<<MACH_BASE), 0 } } } }  },
+/* sentinel */
+  { 0, 0, 0, 0, 0,
+    { 0, { (const PTR) 0 } },
+    { 0, { { { (1<<MACH_BASE), 0 } } } } }
+};
+
+#undef A
+
+
+/* The instruction table.  */
+
+#define OP(field) CGEN_SYNTAX_MAKE_FIELD (OPERAND (field))
+#if defined (__STDC__) || defined (ALMOST_STDC) || defined (HAVE_STRINGIZE)
+#define A(a) (1 << CGEN_INSN_##a)
+#else
+#define A(a) (1 << CGEN_INSN_/**/a)
+#endif
+
+static const CGEN_IBASE lm32_cgen_insn_table[MAX_INSNS] =
+{
+  /* Special null first entry.
+     A `num' value of zero is thus invalid.
+     Also, the special `invalid' insn resides here.  */
+  { 0, 0, 0, 0, { 0, { { { (1<<MACH_BASE), 0 } } } } },
+/* add $r2,$r0,$r1 */
+  {
+    LM32_INSN_ADD, "add", "add", 32,
+    { 0, { { { (1<<MACH_BASE), 0 } } } }
+  },
+/* addi $r1,$r0,$imm */
+  {
+    LM32_INSN_ADDI, "addi", "addi", 32,
+    { 0, { { { (1<<MACH_BASE), 0 } } } }
+  },
+/* and $r2,$r0,$r1 */
+  {
+    LM32_INSN_AND, "and", "and", 32,
+    { 0, { { { (1<<MACH_BASE), 0 } } } }
+  },
+/* andi $r1,$r0,$uimm */
+  {
+    LM32_INSN_ANDI, "andi", "andi", 32,
+    { 0, { { { (1<<MACH_BASE), 0 } } } }
+  },
+/* andhi $r1,$r0,$hi16 */
+  {
+    LM32_INSN_ANDHII, "andhii", "andhi", 32,
+    { 0, { { { (1<<MACH_BASE), 0 } } } }
+  },
+/* b $r0 */
+  {
+    LM32_INSN_B, "b", "b", 32,
+    { 0|A(UNCOND_CTI), { { { (1<<MACH_BASE), 0 } } } }
+  },
+/* bi $call */
+  {
+    LM32_INSN_BI, "bi", "bi", 32,
+    { 0|A(UNCOND_CTI), { { { (1<<MACH_BASE), 0 } } } }
+  },
+/* be $r0,$r1,$branch */
+  {
+    LM32_INSN_BE, "be", "be", 32,
+    { 0|A(COND_CTI), { { { (1<<MACH_BASE), 0 } } } }
+  },
+/* bg $r0,$r1,$branch */
+  {
+    LM32_INSN_BG, "bg", "bg", 32,
+    { 0|A(COND_CTI), { { { (1<<MACH_BASE), 0 } } } }
+  },
+/* bge $r0,$r1,$branch */
+  {
+    LM32_INSN_BGE, "bge", "bge", 32,
+    { 0|A(COND_CTI), { { { (1<<MACH_BASE), 0 } } } }
+  },
+/* bgeu $r0,$r1,$branch */
+  {
+    LM32_INSN_BGEU, "bgeu", "bgeu", 32,
+    { 0|A(COND_CTI), { { { (1<<MACH_BASE), 0 } } } }
+  },
+/* bgu $r0,$r1,$branch */
+  {
+    LM32_INSN_BGU, "bgu", "bgu", 32,
+    { 0|A(COND_CTI), { { { (1<<MACH_BASE), 0 } } } }
+  },
+/* bne $r0,$r1,$branch */
+  {
+    LM32_INSN_BNE, "bne", "bne", 32,
+    { 0|A(COND_CTI), { { { (1<<MACH_BASE), 0 } } } }
+  },
+/* call $r0 */
+  {
+    LM32_INSN_CALL, "call", "call", 32,
+    { 0|A(UNCOND_CTI), { { { (1<<MACH_BASE), 0 } } } }
+  },
+/* calli $call */
+  {
+    LM32_INSN_CALLI, "calli", "calli", 32,
+    { 0|A(UNCOND_CTI), { { { (1<<MACH_BASE), 0 } } } }
+  },
+/* cmpe $r2,$r0,$r1 */
+  {
+    LM32_INSN_CMPE, "cmpe", "cmpe", 32,
+    { 0, { { { (1<<MACH_BASE), 0 } } } }
+  },
+/* cmpei $r1,$r0,$imm */
+  {
+    LM32_INSN_CMPEI, "cmpei", "cmpei", 32,
+    { 0, { { { (1<<MACH_BASE), 0 } } } }
+  },
+/* cmpg $r2,$r0,$r1 */
+  {
+    LM32_INSN_CMPG, "cmpg", "cmpg", 32,
+    { 0, { { { (1<<MACH_BASE), 0 } } } }
+  },
+/* cmpgi $r1,$r0,$imm */
+  {
+    LM32_INSN_CMPGI, "cmpgi", "cmpgi", 32,
+    { 0, { { { (1<<MACH_BASE), 0 } } } }
+  },
+/* cmpge $r2,$r0,$r1 */
+  {
+    LM32_INSN_CMPGE, "cmpge", "cmpge", 32,
+    { 0, { { { (1<<MACH_BASE), 0 } } } }
+  },
+/* cmpgei $r1,$r0,$imm */
+  {
+    LM32_INSN_CMPGEI, "cmpgei", "cmpgei", 32,
+    { 0, { { { (1<<MACH_BASE), 0 } } } }
+  },
+/* cmpgeu $r2,$r0,$r1 */
+  {
+    LM32_INSN_CMPGEU, "cmpgeu", "cmpgeu", 32,
+    { 0, { { { (1<<MACH_BASE), 0 } } } }
+  },
+/* cmpgeui $r1,$r0,$uimm */
+  {
+    LM32_INSN_CMPGEUI, "cmpgeui", "cmpgeui", 32,
+    { 0, { { { (1<<MACH_BASE), 0 } } } }
+  },
+/* cmpgu $r2,$r0,$r1 */
+  {
+    LM32_INSN_CMPGU, "cmpgu", "cmpgu", 32,
+    { 0, { { { (1<<MACH_BASE), 0 } } } }
+  },
+/* cmpgui $r1,$r0,$uimm */
+  {
+    LM32_INSN_CMPGUI, "cmpgui", "cmpgui", 32,
+    { 0, { { { (1<<MACH_BASE), 0 } } } }
+  },
+/* cmpne $r2,$r0,$r1 */
+  {
+    LM32_INSN_CMPNE, "cmpne", "cmpne", 32,
+    { 0, { { { (1<<MACH_BASE), 0 } } } }
+  },
+/* cmpnei $r1,$r0,$imm */
+  {
+    LM32_INSN_CMPNEI, "cmpnei", "cmpnei", 32,
+    { 0, { { { (1<<MACH_BASE), 0 } } } }
+  },
+/* divu $r2,$r0,$r1 */
+  {
+    LM32_INSN_DIVU, "divu", "divu", 32,
+    { 0|A(UNCOND_CTI), { { { (1<<MACH_BASE), 0 } } } }
+  },
+/* lb $r1,($r0+$imm) */
+  {
+    LM32_INSN_LB, "lb", "lb", 32,
+    { 0, { { { (1<<MACH_BASE), 0 } } } }
+  },
+/* lbu $r1,($r0+$imm) */
+  {
+    LM32_INSN_LBU, "lbu", "lbu", 32,
+    { 0, { { { (1<<MACH_BASE), 0 } } } }
+  },
+/* lh $r1,($r0+$imm) */
+  {
+    LM32_INSN_LH, "lh", "lh", 32,
+    { 0, { { { (1<<MACH_BASE), 0 } } } }
+  },
+/* lhu $r1,($r0+$imm) */
+  {
+    LM32_INSN_LHU, "lhu", "lhu", 32,
+    { 0, { { { (1<<MACH_BASE), 0 } } } }
+  },
+/* lw $r1,($r0+$imm) */
+  {
+    LM32_INSN_LW, "lw", "lw", 32,
+    { 0, { { { (1<<MACH_BASE), 0 } } } }
+  },
+/* modu $r2,$r0,$r1 */
+  {
+    LM32_INSN_MODU, "modu", "modu", 32,
+    { 0|A(UNCOND_CTI), { { { (1<<MACH_BASE), 0 } } } }
+  },
+/* mul $r2,$r0,$r1 */
+  {
+    LM32_INSN_MUL, "mul", "mul", 32,
+    { 0, { { { (1<<MACH_BASE), 0 } } } }
+  },
+/* muli $r1,$r0,$imm */
+  {
+    LM32_INSN_MULI, "muli", "muli", 32,
+    { 0, { { { (1<<MACH_BASE), 0 } } } }
+  },
+/* nor $r2,$r0,$r1 */
+  {
+    LM32_INSN_NOR, "nor", "nor", 32,
+    { 0, { { { (1<<MACH_BASE), 0 } } } }
+  },
+/* nori $r1,$r0,$uimm */
+  {
+    LM32_INSN_NORI, "nori", "nori", 32,
+    { 0, { { { (1<<MACH_BASE), 0 } } } }
+  },
+/* or $r2,$r0,$r1 */
+  {
+    LM32_INSN_OR, "or", "or", 32,
+    { 0, { { { (1<<MACH_BASE), 0 } } } }
+  },
+/* ori $r1,$r0,$lo16 */
+  {
+    LM32_INSN_ORI, "ori", "ori", 32,
+    { 0, { { { (1<<MACH_BASE), 0 } } } }
+  },
+/* orhi $r1,$r0,$hi16 */
+  {
+    LM32_INSN_ORHII, "orhii", "orhi", 32,
+    { 0, { { { (1<<MACH_BASE), 0 } } } }
+  },
+/* rcsr $r2,$csr */
+  {
+    LM32_INSN_RCSR, "rcsr", "rcsr", 32,
+    { 0, { { { (1<<MACH_BASE), 0 } } } }
+  },
+/* sb ($r0+$imm),$r1 */
+  {
+    LM32_INSN_SB, "sb", "sb", 32,
+    { 0, { { { (1<<MACH_BASE), 0 } } } }
+  },
+/* sextb $r2,$r0 */
+  {
+    LM32_INSN_SEXTB, "sextb", "sextb", 32,
+    { 0, { { { (1<<MACH_BASE), 0 } } } }
+  },
+/* sexth $r2,$r0 */
+  {
+    LM32_INSN_SEXTH, "sexth", "sexth", 32,
+    { 0, { { { (1<<MACH_BASE), 0 } } } }
+  },
+/* sh ($r0+$imm),$r1 */
+  {
+    LM32_INSN_SH, "sh", "sh", 32,
+    { 0, { { { (1<<MACH_BASE), 0 } } } }
+  },
+/* sl $r2,$r0,$r1 */
+  {
+    LM32_INSN_SL, "sl", "sl", 32,
+    { 0, { { { (1<<MACH_BASE), 0 } } } }
+  },
+/* sli $r1,$r0,$imm */
+  {
+    LM32_INSN_SLI, "sli", "sli", 32,
+    { 0, { { { (1<<MACH_BASE), 0 } } } }
+  },
+/* sr $r2,$r0,$r1 */
+  {
+    LM32_INSN_SR, "sr", "sr", 32,
+    { 0, { { { (1<<MACH_BASE), 0 } } } }
+  },
+/* sri $r1,$r0,$imm */
+  {
+    LM32_INSN_SRI, "sri", "sri", 32,
+    { 0, { { { (1<<MACH_BASE), 0 } } } }
+  },
+/* sru $r2,$r0,$r1 */
+  {
+    LM32_INSN_SRU, "sru", "sru", 32,
+    { 0, { { { (1<<MACH_BASE), 0 } } } }
+  },
+/* srui $r1,$r0,$imm */
+  {
+    LM32_INSN_SRUI, "srui", "srui", 32,
+    { 0, { { { (1<<MACH_BASE), 0 } } } }
+  },
+/* sub $r2,$r0,$r1 */
+  {
+    LM32_INSN_SUB, "sub", "sub", 32,
+    { 0, { { { (1<<MACH_BASE), 0 } } } }
+  },
+/* sw ($r0+$imm),$r1 */
+  {
+    LM32_INSN_SW, "sw", "sw", 32,
+    { 0, { { { (1<<MACH_BASE), 0 } } } }
+  },
+/* user $r2,$r0,$r1,$user */
+  {
+    LM32_INSN_USER, "user", "user", 32,
+    { 0, { { { (1<<MACH_BASE), 0 } } } }
+  },
+/* wcsr $csr,$r1 */
+  {
+    LM32_INSN_WCSR, "wcsr", "wcsr", 32,
+    { 0, { { { (1<<MACH_BASE), 0 } } } }
+  },
+/* xor $r2,$r0,$r1 */
+  {
+    LM32_INSN_XOR, "xor", "xor", 32,
+    { 0, { { { (1<<MACH_BASE), 0 } } } }
+  },
+/* xori $r1,$r0,$uimm */
+  {
+    LM32_INSN_XORI, "xori", "xori", 32,
+    { 0, { { { (1<<MACH_BASE), 0 } } } }
+  },
+/* xnor $r2,$r0,$r1 */
+  {
+    LM32_INSN_XNOR, "xnor", "xnor", 32,
+    { 0, { { { (1<<MACH_BASE), 0 } } } }
+  },
+/* xnori $r1,$r0,$uimm */
+  {
+    LM32_INSN_XNORI, "xnori", "xnori", 32,
+    { 0, { { { (1<<MACH_BASE), 0 } } } }
+  },
+/* break */
+  {
+    LM32_INSN_BREAK, "break", "break", 32,
+    { 0|A(UNCOND_CTI), { { { (1<<MACH_BASE), 0 } } } }
+  },
+/* scall */
+  {
+    LM32_INSN_SCALL, "scall", "scall", 32,
+    { 0|A(UNCOND_CTI), { { { (1<<MACH_BASE), 0 } } } }
+  },
+/* bret */
+  {
+    -1, "bret", "bret", 32,
+    { 0|A(ALIAS)|A(UNCOND_CTI), { { { (1<<MACH_BASE), 0 } } } }
+  },
+/* eret */
+  {
+    -1, "eret", "eret", 32,
+    { 0|A(ALIAS)|A(UNCOND_CTI), { { { (1<<MACH_BASE), 0 } } } }
+  },
+/* ret */
+  {
+    -1, "ret", "ret", 32,
+    { 0|A(ALIAS)|A(UNCOND_CTI), { { { (1<<MACH_BASE), 0 } } } }
+  },
+/* mv $r2,$r0 */
+  {
+    -1, "mv", "mv", 32,
+    { 0|A(ALIAS), { { { (1<<MACH_BASE), 0 } } } }
+  },
+/* mvi $r1,$imm */
+  {
+    -1, "mvi", "mvi", 32,
+    { 0|A(ALIAS), { { { (1<<MACH_BASE), 0 } } } }
+  },
+/* mvu $r1,$lo16 */
+  {
+    -1, "mvui", "mvu", 32,
+    { 0|A(ALIAS), { { { (1<<MACH_BASE), 0 } } } }
+  },
+/* mvhi $r1,$hi16 */
+  {
+    -1, "mvhi", "mvhi", 32,
+    { 0|A(ALIAS), { { { (1<<MACH_BASE), 0 } } } }
+  },
+/* mva $r1,$gp16 */
+  {
+    -1, "mva", "mva", 32,
+    { 0|A(ALIAS), { { { (1<<MACH_BASE), 0 } } } }
+  },
+/* not $r2,$r0 */
+  {
+    -1, "not", "not", 32,
+    { 0|A(ALIAS), { { { (1<<MACH_BASE), 0 } } } }
+  },
+/* nop */
+  {
+    -1, "nop", "nop", 32,
+    { 0|A(ALIAS), { { { (1<<MACH_BASE), 0 } } } }
+  },
+/* lb $r1,$gp16 */
+  {
+    -1, "lbgprel", "lb", 32,
+    { 0|A(ALIAS), { { { (1<<MACH_BASE), 0 } } } }
+  },
+/* lbu $r1,$gp16 */
+  {
+    -1, "lbugprel", "lbu", 32,
+    { 0|A(ALIAS), { { { (1<<MACH_BASE), 0 } } } }
+  },
+/* lh $r1,$gp16 */
+  {
+    -1, "lhgprel", "lh", 32,
+    { 0|A(ALIAS), { { { (1<<MACH_BASE), 0 } } } }
+  },
+/* lhu $r1,$gp16 */
+  {
+    -1, "lhugprel", "lhu", 32,
+    { 0|A(ALIAS), { { { (1<<MACH_BASE), 0 } } } }
+  },
+/* lw $r1,$gp16 */
+  {
+    -1, "lwgprel", "lw", 32,
+    { 0|A(ALIAS), { { { (1<<MACH_BASE), 0 } } } }
+  },
+/* sb $gp16,$r1 */
+  {
+    -1, "sbgprel", "sb", 32,
+    { 0|A(ALIAS), { { { (1<<MACH_BASE), 0 } } } }
+  },
+/* sh $gp16,$r1 */
+  {
+    -1, "shgprel", "sh", 32,
+    { 0|A(ALIAS), { { { (1<<MACH_BASE), 0 } } } }
+  },
+/* sw $gp16,$r1 */
+  {
+    -1, "swgprel", "sw", 32,
+    { 0|A(ALIAS), { { { (1<<MACH_BASE), 0 } } } }
+  },
+/* lw $r1,(gp+$got16) */
+  {
+    -1, "lwgotrel", "lw", 32,
+    { 0|A(ALIAS), { { { (1<<MACH_BASE), 0 } } } }
+  },
+/* orhi $r1,$r0,$gotoffhi16 */
+  {
+    -1, "orhigotoffi", "orhi", 32,
+    { 0|A(ALIAS), { { { (1<<MACH_BASE), 0 } } } }
+  },
+/* addi $r1,$r0,$gotofflo16 */
+  {
+    -1, "addgotoff", "addi", 32,
+    { 0|A(ALIAS), { { { (1<<MACH_BASE), 0 } } } }
+  },
+/* sw ($r0+$gotofflo16),$r1 */
+  {
+    -1, "swgotoff", "sw", 32,
+    { 0|A(ALIAS), { { { (1<<MACH_BASE), 0 } } } }
+  },
+/* lw $r1,($r0+$gotofflo16) */
+  {
+    -1, "lwgotoff", "lw", 32,
+    { 0|A(ALIAS), { { { (1<<MACH_BASE), 0 } } } }
+  },
+/* sh ($r0+$gotofflo16),$r1 */
+  {
+    -1, "shgotoff", "sh", 32,
+    { 0|A(ALIAS), { { { (1<<MACH_BASE), 0 } } } }
+  },
+/* lh $r1,($r0+$gotofflo16) */
+  {
+    -1, "lhgotoff", "lh", 32,
+    { 0|A(ALIAS), { { { (1<<MACH_BASE), 0 } } } }
+  },
+/* lhu $r1,($r0+$gotofflo16) */
+  {
+    -1, "lhugotoff", "lhu", 32,
+    { 0|A(ALIAS), { { { (1<<MACH_BASE), 0 } } } }
+  },
+/* sb ($r0+$gotofflo16),$r1 */
+  {
+    -1, "sbgotoff", "sb", 32,
+    { 0|A(ALIAS), { { { (1<<MACH_BASE), 0 } } } }
+  },
+/* lb $r1,($r0+$gotofflo16) */
+  {
+    -1, "lbgotoff", "lb", 32,
+    { 0|A(ALIAS), { { { (1<<MACH_BASE), 0 } } } }
+  },
+/* lbu $r1,($r0+$gotofflo16) */
+  {
+    -1, "lbugotoff", "lbu", 32,
+    { 0|A(ALIAS), { { { (1<<MACH_BASE), 0 } } } }
+  },
+};
+
+#undef OP
+#undef A
+
+/* Initialize anything needed to be done once, before any cpu_open call.  */
+
+static void
+init_tables (void)
+{
+}
+
+static const CGEN_MACH * lookup_mach_via_bfd_name (const CGEN_MACH *, const char *);
+static void build_hw_table      (CGEN_CPU_TABLE *);
+static void build_ifield_table  (CGEN_CPU_TABLE *);
+static void build_operand_table (CGEN_CPU_TABLE *);
+static void build_insn_table    (CGEN_CPU_TABLE *);
+static void lm32_cgen_rebuild_tables (CGEN_CPU_TABLE *);
+
+/* Subroutine of lm32_cgen_cpu_open to look up a mach via its bfd name.  */
+
+static const CGEN_MACH *
+lookup_mach_via_bfd_name (const CGEN_MACH *table, const char *name)
+{
+  while (table->name)
+    {
+      if (strcmp (name, table->bfd_name) == 0)
+	return table;
+      ++table;
+    }
+  abort ();
+}
+
+/* Subroutine of lm32_cgen_cpu_open to build the hardware table.  */
+
+static void
+build_hw_table (CGEN_CPU_TABLE *cd)
+{
+  int i;
+  int machs = cd->machs;
+  const CGEN_HW_ENTRY *init = & lm32_cgen_hw_table[0];
+  /* MAX_HW is only an upper bound on the number of selected entries.
+     However each entry is indexed by it's enum so there can be holes in
+     the table.  */
+  const CGEN_HW_ENTRY **selected =
+    (const CGEN_HW_ENTRY **) xmalloc (MAX_HW * sizeof (CGEN_HW_ENTRY *));
+
+  cd->hw_table.init_entries = init;
+  cd->hw_table.entry_size = sizeof (CGEN_HW_ENTRY);
+  memset (selected, 0, MAX_HW * sizeof (CGEN_HW_ENTRY *));
+  /* ??? For now we just use machs to determine which ones we want.  */
+  for (i = 0; init[i].name != NULL; ++i)
+    if (CGEN_HW_ATTR_VALUE (&init[i], CGEN_HW_MACH)
+	& machs)
+      selected[init[i].type] = &init[i];
+  cd->hw_table.entries = selected;
+  cd->hw_table.num_entries = MAX_HW;
+}
+
+/* Subroutine of lm32_cgen_cpu_open to build the hardware table.  */
+
+static void
+build_ifield_table (CGEN_CPU_TABLE *cd)
+{
+  cd->ifld_table = & lm32_cgen_ifld_table[0];
+}
+
+/* Subroutine of lm32_cgen_cpu_open to build the hardware table.  */
+
+static void
+build_operand_table (CGEN_CPU_TABLE *cd)
+{
+  int i;
+  int machs = cd->machs;
+  const CGEN_OPERAND *init = & lm32_cgen_operand_table[0];
+  /* MAX_OPERANDS is only an upper bound on the number of selected entries.
+     However each entry is indexed by it's enum so there can be holes in
+     the table.  */
+  const CGEN_OPERAND **selected = xmalloc (MAX_OPERANDS * sizeof (* selected));
+
+  cd->operand_table.init_entries = init;
+  cd->operand_table.entry_size = sizeof (CGEN_OPERAND);
+  memset (selected, 0, MAX_OPERANDS * sizeof (CGEN_OPERAND *));
+  /* ??? For now we just use mach to determine which ones we want.  */
+  for (i = 0; init[i].name != NULL; ++i)
+    if (CGEN_OPERAND_ATTR_VALUE (&init[i], CGEN_OPERAND_MACH)
+	& machs)
+      selected[init[i].type] = &init[i];
+  cd->operand_table.entries = selected;
+  cd->operand_table.num_entries = MAX_OPERANDS;
+}
+
+/* Subroutine of lm32_cgen_cpu_open to build the hardware table.
+   ??? This could leave out insns not supported by the specified mach/isa,
+   but that would cause errors like "foo only supported by bar" to become
+   "unknown insn", so for now we include all insns and require the app to
+   do the checking later.
+   ??? On the other hand, parsing of such insns may require their hardware or
+   operand elements to be in the table [which they mightn't be].  */
+
+static void
+build_insn_table (CGEN_CPU_TABLE *cd)
+{
+  int i;
+  const CGEN_IBASE *ib = & lm32_cgen_insn_table[0];
+  CGEN_INSN *insns = xmalloc (MAX_INSNS * sizeof (CGEN_INSN));
+
+  memset (insns, 0, MAX_INSNS * sizeof (CGEN_INSN));
+  for (i = 0; i < MAX_INSNS; ++i)
+    insns[i].base = &ib[i];
+  cd->insn_table.init_entries = insns;
+  cd->insn_table.entry_size = sizeof (CGEN_IBASE);
+  cd->insn_table.num_init_entries = MAX_INSNS;
+}
+
+/* Subroutine of lm32_cgen_cpu_open to rebuild the tables.  */
+
+static void
+lm32_cgen_rebuild_tables (CGEN_CPU_TABLE *cd)
+{
+  int i;
+  CGEN_BITSET *isas = cd->isas;
+  unsigned int machs = cd->machs;
+
+  cd->int_insn_p = CGEN_INT_INSN_P;
+
+  /* Data derived from the isa spec.  */
+#define UNSET (CGEN_SIZE_UNKNOWN + 1)
+  cd->default_insn_bitsize = UNSET;
+  cd->base_insn_bitsize = UNSET;
+  cd->min_insn_bitsize = 65535; /* Some ridiculously big number.  */
+  cd->max_insn_bitsize = 0;
+  for (i = 0; i < MAX_ISAS; ++i)
+    if (cgen_bitset_contains (isas, i))
+      {
+	const CGEN_ISA *isa = & lm32_cgen_isa_table[i];
+
+	/* Default insn sizes of all selected isas must be
+	   equal or we set the result to 0, meaning "unknown".  */
+	if (cd->default_insn_bitsize == UNSET)
+	  cd->default_insn_bitsize = isa->default_insn_bitsize;
+	else if (isa->default_insn_bitsize == cd->default_insn_bitsize)
+	  ; /* This is ok.  */
+	else
+	  cd->default_insn_bitsize = CGEN_SIZE_UNKNOWN;
+
+	/* Base insn sizes of all selected isas must be equal
+	   or we set the result to 0, meaning "unknown".  */
+	if (cd->base_insn_bitsize == UNSET)
+	  cd->base_insn_bitsize = isa->base_insn_bitsize;
+	else if (isa->base_insn_bitsize == cd->base_insn_bitsize)
+	  ; /* This is ok.  */
+	else
+	  cd->base_insn_bitsize = CGEN_SIZE_UNKNOWN;
+
+	/* Set min,max insn sizes.  */
+	if (isa->min_insn_bitsize < cd->min_insn_bitsize)
+	  cd->min_insn_bitsize = isa->min_insn_bitsize;
+	if (isa->max_insn_bitsize > cd->max_insn_bitsize)
+	  cd->max_insn_bitsize = isa->max_insn_bitsize;
+      }
+
+  /* Data derived from the mach spec.  */
+  for (i = 0; i < MAX_MACHS; ++i)
+    if (((1 << i) & machs) != 0)
+      {
+	const CGEN_MACH *mach = & lm32_cgen_mach_table[i];
+
+	if (mach->insn_chunk_bitsize != 0)
+	{
+	  if (cd->insn_chunk_bitsize != 0 && cd->insn_chunk_bitsize != mach->insn_chunk_bitsize)
+	    {
+	      fprintf (stderr, "lm32_cgen_rebuild_tables: conflicting insn-chunk-bitsize values: `%d' vs. `%d'\n",
+		       cd->insn_chunk_bitsize, mach->insn_chunk_bitsize);
+	      abort ();
+	    }
+
+ 	  cd->insn_chunk_bitsize = mach->insn_chunk_bitsize;
+	}
+      }
+
+  /* Determine which hw elements are used by MACH.  */
+  build_hw_table (cd);
+
+  /* Build the ifield table.  */
+  build_ifield_table (cd);
+
+  /* Determine which operands are used by MACH/ISA.  */
+  build_operand_table (cd);
+
+  /* Build the instruction table.  */
+  build_insn_table (cd);
+}
+
+/* Initialize a cpu table and return a descriptor.
+   It's much like opening a file, and must be the first function called.
+   The arguments are a set of (type/value) pairs, terminated with
+   CGEN_CPU_OPEN_END.
+
+   Currently supported values:
+   CGEN_CPU_OPEN_ISAS:    bitmap of values in enum isa_attr
+   CGEN_CPU_OPEN_MACHS:   bitmap of values in enum mach_attr
+   CGEN_CPU_OPEN_BFDMACH: specify 1 mach using bfd name
+   CGEN_CPU_OPEN_ENDIAN:  specify endian choice
+   CGEN_CPU_OPEN_END:     terminates arguments
+
+   ??? Simultaneous multiple isas might not make sense, but it's not (yet)
+   precluded.
+
+   ??? We only support ISO C stdargs here, not K&R.
+   Laziness, plus experiment to see if anything requires K&R - eventually
+   K&R will no longer be supported - e.g. GDB is currently trying this.  */
+
+CGEN_CPU_DESC
+lm32_cgen_cpu_open (enum cgen_cpu_open_arg arg_type, ...)
+{
+  CGEN_CPU_TABLE *cd = (CGEN_CPU_TABLE *) xmalloc (sizeof (CGEN_CPU_TABLE));
+  static int init_p;
+  CGEN_BITSET *isas = 0;  /* 0 = "unspecified" */
+  unsigned int machs = 0; /* 0 = "unspecified" */
+  enum cgen_endian endian = CGEN_ENDIAN_UNKNOWN;
+  va_list ap;
+
+  if (! init_p)
+    {
+      init_tables ();
+      init_p = 1;
+    }
+
+  memset (cd, 0, sizeof (*cd));
+
+  va_start (ap, arg_type);
+  while (arg_type != CGEN_CPU_OPEN_END)
+    {
+      switch (arg_type)
+	{
+	case CGEN_CPU_OPEN_ISAS :
+	  isas = va_arg (ap, CGEN_BITSET *);
+	  break;
+	case CGEN_CPU_OPEN_MACHS :
+	  machs = va_arg (ap, unsigned int);
+	  break;
+	case CGEN_CPU_OPEN_BFDMACH :
+	  {
+	    const char *name = va_arg (ap, const char *);
+	    const CGEN_MACH *mach =
+	      lookup_mach_via_bfd_name (lm32_cgen_mach_table, name);
+
+	    machs |= 1 << mach->num;
+	    break;
+	  }
+	case CGEN_CPU_OPEN_ENDIAN :
+	  endian = va_arg (ap, enum cgen_endian);
+	  break;
+	default :
+	  fprintf (stderr, "lm32_cgen_cpu_open: unsupported argument `%d'\n",
+		   arg_type);
+	  abort (); /* ??? return NULL? */
+	}
+      arg_type = va_arg (ap, enum cgen_cpu_open_arg);
+    }
+  va_end (ap);
+
+  /* Mach unspecified means "all".  */
+  if (machs == 0)
+    machs = (1 << MAX_MACHS) - 1;
+  /* Base mach is always selected.  */
+  machs |= 1;
+  if (endian == CGEN_ENDIAN_UNKNOWN)
+    {
+      /* ??? If target has only one, could have a default.  */
+      fprintf (stderr, "lm32_cgen_cpu_open: no endianness specified\n");
+      abort ();
+    }
+
+  cd->isas = cgen_bitset_copy (isas);
+  cd->machs = machs;
+  cd->endian = endian;
+  /* FIXME: for the sparc case we can determine insn-endianness statically.
+     The worry here is where both data and insn endian can be independently
+     chosen, in which case this function will need another argument.
+     Actually, will want to allow for more arguments in the future anyway.  */
+  cd->insn_endian = endian;
+
+  /* Table (re)builder.  */
+  cd->rebuild_tables = lm32_cgen_rebuild_tables;
+  lm32_cgen_rebuild_tables (cd);
+
+  /* Default to not allowing signed overflow.  */
+  cd->signed_overflow_ok_p = 0;
+  
+  return (CGEN_CPU_DESC) cd;
+}
+
+/* Cover fn to lm32_cgen_cpu_open to handle the simple case of 1 isa, 1 mach.
+   MACH_NAME is the bfd name of the mach.  */
+
+CGEN_CPU_DESC
+lm32_cgen_cpu_open_1 (const char *mach_name, enum cgen_endian endian)
+{
+  return lm32_cgen_cpu_open (CGEN_CPU_OPEN_BFDMACH, mach_name,
+			       CGEN_CPU_OPEN_ENDIAN, endian,
+			       CGEN_CPU_OPEN_END);
+}
+
+/* Close a cpu table.
+   ??? This can live in a machine independent file, but there's currently
+   no place to put this file (there's no libcgen).  libopcodes is the wrong
+   place as some simulator ports use this but they don't use libopcodes.  */
+
+void
+lm32_cgen_cpu_close (CGEN_CPU_DESC cd)
+{
+  unsigned int i;
+  const CGEN_INSN *insns;
+
+  if (cd->macro_insn_table.init_entries)
+    {
+      insns = cd->macro_insn_table.init_entries;
+      for (i = 0; i < cd->macro_insn_table.num_init_entries; ++i, ++insns)
+	if (CGEN_INSN_RX ((insns)))
+	  regfree (CGEN_INSN_RX (insns));
+    }
+
+  if (cd->insn_table.init_entries)
+    {
+      insns = cd->insn_table.init_entries;
+      for (i = 0; i < cd->insn_table.num_init_entries; ++i, ++insns)
+	if (CGEN_INSN_RX (insns))
+	  regfree (CGEN_INSN_RX (insns));
+    }  
+
+  if (cd->macro_insn_table.init_entries)
+    free ((CGEN_INSN *) cd->macro_insn_table.init_entries);
+
+  if (cd->insn_table.init_entries)
+    free ((CGEN_INSN *) cd->insn_table.init_entries);
+
+  if (cd->hw_table.entries)
+    free ((CGEN_HW_ENTRY *) cd->hw_table.entries);
+
+  if (cd->operand_table.entries)
+    free ((CGEN_HW_ENTRY *) cd->operand_table.entries);
+
+  free (cd);
+}
+