Based on patches from John W. Woznack <jwoznack@concentric.net>:

	Based on patches from John W. Woznack <jwoznack@concentric.net>:
	* itbl-ops.c (itbl_get_reg_val): Add pval parameter.  Return
	indication of success rather than a value.
	(itbl_get_val): Likewise.
	(itbl_get_field): Use strcspn.  Change delimiters to include
	parens.
	* itbl-ops.h (itbl_get_reg_val): Update declaration.
	(itbl_get_val): Likewise.
	* config/tc-mips.c (mips_ip): Update call to itbl_get_reg_val.