version 1.34, 2000/09/23 15:46:56
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version 1.37, 2002/10/27 09:57:10
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Line 102 DOES> ( -- r )
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Line 102 DOES> ( -- r )
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: f. ( r -- ) \ float-ext f-dot |
: f. ( r -- ) \ float-ext f-dot |
\G Display (the floating-point number) @i{r} without exponent, |
\G Display (the floating-point number) @i{r} without exponent, |
\G followed by a space. |
\G followed by a space. |
f$ dup >r 0< |
f$ dup >r 0<= |
IF '0 emit |
IF '0 emit |
ELSE scratch r@ min type r@ precision - zeros THEN |
ELSE scratch r@ min type r@ precision - zeros THEN |
'. emit r@ negate zeros |
'. emit r@ negate zeros |
Line 180 IS interpreter-notfound
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Line 180 IS interpreter-notfound
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\G Divide 1.0e0 by @i{r1}. |
\G Divide 1.0e0 by @i{r1}. |
1.0e0 fswap f/ ; |
1.0e0 fswap f/ ; |
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get-current environment-wordlist set-current |
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1.7976931348623157e308 FConstant max-float |
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set-current |
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\ We now have primitives for these, so we need not define them |
\ We now have primitives for these, so we need not define them |
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Line 219 IS interpreter-notfound
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Line 222 IS interpreter-notfound
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fnegate f~rel |
fnegate f~rel |
THEN ; |
THEN ; |
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2e 53e f** fconstant fround-offset \ !! does f** work correctly? |
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: fround ( r1 -- r2 ) \ float f-round |
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\G Round to nearest integral value. Break ties with round-to-even. |
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\ assumes IEEE DP FP in round-to-even mode. |
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\ for an explanation of this code read |
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\ <2002Oct26.113823@a0.complang.tuwien.ac.at> ff. |
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fdup f0> if |
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fround-offset f- fround-offset f+ |
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else fdup f0< if \ leave 0e and -0e as is |
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fround-offset f+ fround-offset f- |
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then then ; |
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: 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. |