+/* An instruction to match. */
+
+struct ppc_insn_pattern
+{
+ unsigned int mask; /* mask the insn with this... */
+ unsigned int data; /* ...and see if it matches this. */
+ int optional; /* If non-zero, this insn may be absent. */
+};
+
+extern int ppc_insns_match_pattern (struct frame_info *frame, CORE_ADDR pc,
+ struct ppc_insn_pattern *pattern,
+ unsigned int *insns);
+extern CORE_ADDR ppc_insn_d_field (unsigned int insn);
+
+extern CORE_ADDR ppc_insn_ds_field (unsigned int insn);