version 1.5, 1994/06/17 12:34:59
|
version 1.9, 1994/10/27 16:32:19
|
Line 1
|
Line 1
|
\ High level floating point 14jan94py |
\ High level floating point 14jan94py |
|
|
|
1 cells 4 = [IF] |
|
' cells Alias sfloats |
|
' cell+ Alias sfloat+ |
|
' align Alias sfalign |
|
' aligned Alias sfaligned |
|
[ELSE] |
|
: sfloats 2* 2* ; |
|
: sfloat+ 4 + ; |
|
: sfaligned ( addr -- addr' ) 3 + -4 and ; |
|
: sfalign ( -- ) here dup sfaligned swap ?DO bl c, LOOP ; |
|
[THEN] |
|
|
|
1 floats 8 = [IF] |
|
' floats Alias dfloats |
|
' float+ Alias dfloat+ |
|
' falign Alias dfalign |
|
' faligned Alias dfaligned |
|
[ELSE] |
|
: dfloats 2* 2* 2* ; |
|
: dfloat+ 8 + ; |
|
: dfaligned ( addr -- addr' ) 7 + -8 and ; |
|
: dfalign ( -- ) here dup dfaligned swap ?DO bl c, LOOP ; |
|
[THEN] |
|
|
: f, ( f -- ) here 1 floats allot f! ; |
: f, ( f -- ) here 1 floats allot f! ; |
|
|
\ !! have create produce faligned pfas |
\ !! have create produce faligned pfas |
Line 46
|
Line 70
|
scratch over c@ emit '. emit 1 /string type |
scratch over c@ emit '. emit 1 /string type |
'E emit . ; |
'E emit . ; |
|
|
: fnumber ( string -- r / ) |
: sfnumber ( c-addr u -- r / ) |
?dup IF dup count >float 0= |
2dup >float |
IF defers notfound |
IF |
ELSE drop state @ |
2drop state @ |
IF postpone FLiteral THEN THEN THEN ; |
IF |
|
postpone FLiteral |
|
THEN |
|
ELSE |
|
defers notfound |
|
THEN ; |
|
|
' fnumber IS notfound |
' sfnumber IS notfound |
|
|
1e0 fasin 2e0 f* fconstant pi |
1e0 fasin 2e0 f* fconstant pi |
|
|
|
: f2* 2e0 f* ; |
|
: f2/ 2e0 f/ ; |
|
: 1/f 1e0 fswap f/ ; |
|
|
|
: falog ( f -- 10^f ) [ 10e0 fln ] FLiteral f* fexp ; |
|
|
|
: fsinh fexpm1 fdup fdup 1e0 f+ f/ f+ f2/ ; |
|
: fcosh fexp fdup 1/f f+ f2/ ; |
|
: ftanh f2* fexpm1 fdup 2e0 f+ f/ ; |
|
|
|
: fatanh fdup f0< >r fabs 1e0 fover f- f/ f2* flnp1 f2/ |
|
r> IF fnegate THEN ; |
|
: facosh fdup fdup f* 1e0 f- fsqrt f+ fln ; |
|
: fasinh fdup fdup f* 1e0 f+ fsqrt f/ fatanh ; |
|
|
|
: f.s ." <" fdepth 0 .r ." > " fdepth 0 max maxdepth-.s @ min dup 0 |
|
?DO dup i - 1- floats fp@ + f@ f. LOOP drop ; |