top_level_logf.tdf

对数计算源程序

FUNCTION logf (sysclk, reset, xin[width..1])
	RETURNS (logout[width..1]);

PARAMETERS
(
 width = 16,
 exact = 6,
 base = "two",		-- two, ten, e
 pipeline = "yes"
);

subdesign top_level_logf
(
 sysclk, reset, xin[width..1] : INPUT;
 logout[width..1] : OUTPUT;
)

BEGIN

  logout[] = logf (sysclk, reset, xin[])
				WITH (width=width,exact=exact,base=base,pipeline=pipeline);

END;