* interp.c (FPSCR, FPUL): Define.

	* interp.c (FPSCR, FPUL): Define.
	(struct save_state): Add fields for floating point registers,
	FPSCR and FPUL.
	(sim_resume): Add 'F' for accessing floating point registers
	in the save state structure.
	* gencode.c: Add sh3e opcodes.
	(gensym): Define a buffer for int<->fp conversions.

First cut at simulating sh3e instructions.  Basic stuff should work;
instructions using fpul and fpscr are completely untested...  Sanitized
away for now (sh3e).