* config/mn10300/tm-mn10300.h (FP_REGNUM): Redefine to be a

	* config/mn10300/tm-mn10300.h (FP_REGNUM): Redefine to be a
	pseudo-register, not the same as a3.
	(D2_REGNUM, D3_REGNUM, A2_REGNUM, A3_REGNUM): Define.
	* mn10300-tdep.c (fix_frame_pointer): New function.
	(set_movm_offsets): Use register number macros instead of
	hard-coded constants.
	(mn10300_analyze_prologue): Fix to handle redefinition of FP_REGNUM.
	(mn10300_frame_chain):  Fix to handle redefinition of FP_REGNUM;
	use register number macros instead of hard-coded constants;
	add missing parameter to call of mn10300_analyze_prologue.
	(mn10300_frame_saved_pc): Use register number macros instead of
	hard-coded constants.