version 1.4, 1994/06/01 10:02:22
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version 1.6, 1994/07/21 10:52:40
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\ High level floating point 14jan94py |
\ High level floating point 14jan94py |
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: faligned ( addr -- f-addr ) |
1 cells 4 = [IF] |
[ 1 floats 1- ] Literal + [ -1 floats ] Literal and ; |
' cells Alias sfloats |
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' cell+ Alias sfloat+ |
: falign ( -- ) |
' align Alias sfalign |
here dup faligned swap |
' aligned Alias sfaligned |
?DO bl c, LOOP ; |
[ELSE] |
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: sfloats 4 * ; |
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: sfloat+ 4 + ; |
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: sfaligned ( addr -- addr' ) 3 + -4 and ; |
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: sfalign ( -- ) here dup sfaligned swap ?DO bl c, LOOP ; |
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[THEN] |
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1 floats 8 = [IF] |
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' floats Alias dfloats |
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' float+ Alias dfloat+ |
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' falign Alias dfalign |
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' faligned Alias dfaligned |
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[ELSE] |
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: dfloats 8 * ; |
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: dfloat+ 8 + ; |
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: dfaligned ( addr -- addr' ) 7 + -8 and ; |
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: dfalign ( -- ) here dup dfaligned swap ?DO bl c, LOOP ; |
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[THEN] |
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: f, ( f -- ) here 1 floats allot f! ; |
: f, ( f -- ) here 1 floats allot f! ; |
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' fnumber IS notfound |
' fnumber IS notfound |
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1e0 fasin 2e0 f* fconstant pi |
1e0 fasin 2e0 f* fconstant pi |
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: f2* 2e0 f* ; |
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: f2/ 2e0 f/ ; |
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: 1/f 1e0 fswap f/ ; |
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: falog ( f -- 10^f ) [ 10e0 fln ] FLiteral f* fexp ; |
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: fsinh fexpm1 fdup fdup 1e0 f+ f/ f+ f2/ ; |
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: fcosh fexp fdup 1/f f+ f2/ ; |
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: ftanh f2* fexpm1 fdup 2e0 f+ f/ ; |
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: fatanh fdup f0< >r fabs 1e0 fover f- f/ f2* flnp1 f2/ |
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r> IF fnegate THEN ; |
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: facosh fdup fdup f* 1e0 f- fsqrt f+ fln ; |
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: fasinh fdup fdup f* 1e0 f+ fsqrt f/ fatanh ; |