gforth/float.fs - diff

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version 1.35, 2001/08/07 09:39:30	version 1.37, 2002/10/27 09:57:10
Line 180 IS interpreter-notfound	Line 180 IS interpreter-notfound
\G Divide 1.0e0 by @i{r1}.	\G Divide 1.0e0 by @i{r1}.
1.0e0 fswap f/ ;	1.0e0 fswap f/ ;

	get-current environment-wordlist set-current
	1.7976931348623157e308 FConstant max-float
	set-current

\ We now have primitives for these, so we need not define them	\ We now have primitives for these, so we need not define them

Line 219 IS interpreter-notfound	Line 222 IS interpreter-notfound
fnegate f~rel	fnegate f~rel
THEN ;	THEN ;

	2e 53e f fconstant fround-offset \ !! does f work correctly?

	: fround ( r1 -- r2 ) \ float f-round
	\G Round to nearest integral value. Break ties with round-to-even.
	\ assumes IEEE DP FP in round-to-even mode.
	\ for an explanation of this code read
	\ <2002Oct26.113823@a0.complang.tuwien.ac.at> ff.
	fdup f0> if
	fround-offset f- fround-offset f+
	else fdup f0< if \ leave 0e and -0e as is
	fround-offset f+ fround-offset f-
	then then ;

: f.s ( -- ) \ gforth f-dot-s	: f.s ( -- ) \ gforth f-dot-s
\G Display the number of items on the floating-point stack,	\G Display the number of items on the floating-point stack,
\G followed by a list of the items; TOS is the right-most item.	\G followed by a list of the items; TOS is the right-most item.