* m68k-tdep.c (P_LINKL_FP, P_LINKW_FP): Macros renamed from P_LINK_L

	* m68k-tdep.c (P_LINKL_FP, P_LINKW_FP): Macros renamed from P_LINK_L
	and P_LINK_W.
	(P_PEA_FP, P_MOVL_SP_FP): New macros.
	(P_MOVL, P_LEAL, P_MOVML): Macros renamed from P_MOV_L, P_LEA_L and
	P_MOVM_L.
	(altos_skip_prologue, isi_skip_prologue): Use P_* macros, not octal
 	constants.
	(delta68_in_sigtramp): New function.
	(delta68_frame_args_address, delta68_frame_saved_pc): Ditto.
	(m68k_skip_prologue): Use P_* macros, not hex constants.
	(m68k_find_saved_regs): Do not expect a fixed sequence of register save
	instructions, but accept them in any order; use P_* macros, not octal
	or hex constants; recognize also `fmovemx to (fp + displacement)' and
 	`moveml to (fp + displacement)'.
	* m68/tm-delta68.h (IN_SIGTRAMP): New macro.
	(FRAME_SAVED_PC, FRAME_ARGS_ADDRESS): Ditto.