+ /* The authority for what appears here is the home-grown ABI.
+ The most recent version is 1.2. */
+
+ insn = setup_prologue_scan (func_start);
+
+ /* First insn may be "sub sp,sp,N" if stdarg fn. */
+ if ((insn & BUILD_INSN (-1, -1, -1, -1, 0))
+ == BUILD_INSN (10, SP_REGNUM, SP_REGNUM, SHIMM_REGNUM, 0))
+ insn = codestream_get ();
+
+ /* If the next insn is "st blink,[sp,4]" we can get blink from there.