+ return print_insn (cd, pc, info, buf, buflen);
+}
+
+/* Main entry point.
+ Print one instruction from PC on INFO->STREAM.
+ Return the size of the instruction (in bytes). */
+
+typedef struct cpu_desc_list
+{
+ struct cpu_desc_list *next;
+ CGEN_BITSET *isa;
+ int mach;
+ int endian;
+ CGEN_CPU_DESC cd;
+} cpu_desc_list;
+
+int
+print_insn_m32r (bfd_vma pc, disassemble_info *info)
+{
+ static cpu_desc_list *cd_list = 0;
+ cpu_desc_list *cl = 0;
+ static CGEN_CPU_DESC cd = 0;
+ static CGEN_BITSET *prev_isa;
+ static int prev_mach;
+ static int prev_endian;
+ int length;
+ CGEN_BITSET *isa;
+ int mach;
+ int endian = (info->endian == BFD_ENDIAN_BIG
+ ? CGEN_ENDIAN_BIG
+ : CGEN_ENDIAN_LITTLE);
+ enum bfd_architecture arch;
+
+ /* ??? gdb will set mach but leave the architecture as "unknown" */
+#ifndef CGEN_BFD_ARCH
+#define CGEN_BFD_ARCH bfd_arch_m32r
+#endif
+ arch = info->arch;
+ if (arch == bfd_arch_unknown)
+ arch = CGEN_BFD_ARCH;
+
+ /* There's no standard way to compute the machine or isa number
+ so we leave it to the target. */
+#ifdef CGEN_COMPUTE_MACH
+ mach = CGEN_COMPUTE_MACH (info);
+#else
+ mach = info->mach;
+#endif
+
+#ifdef CGEN_COMPUTE_ISA
+ {
+ static CGEN_BITSET *permanent_isa;
+
+ if (!permanent_isa)
+ permanent_isa = cgen_bitset_create (MAX_ISAS);
+ isa = permanent_isa;
+ cgen_bitset_clear (isa);
+ cgen_bitset_add (isa, CGEN_COMPUTE_ISA (info));
+ }
+#else
+ isa = info->insn_sets;
+#endif
+
+ /* If we've switched cpu's, try to find a handle we've used before */
+ if (cd
+ && (cgen_bitset_compare (isa, prev_isa) != 0
+ || mach != prev_mach
+ || endian != prev_endian))
+ {
+ cd = 0;
+ for (cl = cd_list; cl; cl = cl->next)
+ {
+ if (cgen_bitset_compare (cl->isa, isa) == 0 &&
+ cl->mach == mach &&
+ cl->endian == endian)
+ {
+ cd = cl->cd;
+ prev_isa = cd->isas;
+ break;
+ }
+ }
+ }
+
+ /* If we haven't initialized yet, initialize the opcode table. */
+ if (! cd)
+ {
+ const bfd_arch_info_type *arch_type = bfd_lookup_arch (arch, mach);
+ const char *mach_name;
+
+ if (!arch_type)
+ abort ();
+ mach_name = arch_type->printable_name;
+
+ prev_isa = cgen_bitset_copy (isa);
+ prev_mach = mach;
+ prev_endian = endian;
+ cd = m32r_cgen_cpu_open (CGEN_CPU_OPEN_ISAS, prev_isa,
+ CGEN_CPU_OPEN_BFDMACH, mach_name,
+ CGEN_CPU_OPEN_ENDIAN, prev_endian,
+ CGEN_CPU_OPEN_END);
+ if (!cd)
+ abort ();
+
+ /* Save this away for future reference. */
+ cl = xmalloc (sizeof (struct cpu_desc_list));
+ cl->cd = cd;
+ cl->isa = prev_isa;
+ cl->mach = mach;
+ cl->endian = endian;
+ cl->next = cd_list;
+ cd_list = cl;
+
+ m32r_cgen_init_dis (cd);
+ }
+