| |
|
| : f, ( f -- ) here 1 floats allot f! ; |
: f, ( f -- ) here 1 floats allot f! ; |
| |
|
| : fconstant ( r -- ) |
: fconstant ( r -- ) \ float |
| Create f, |
Create f, |
| DOES> f@ ; |
DOES> ( -- r ) |
| |
f@ ; |
| |
|
| : fdepth ( -- n ) f0 @ fp@ - [ 1 floats ] Literal / ; |
: fdepth ( -- n ) f0 @ fp@ - [ 1 floats ] Literal / ; |
| |
|
| scratch over c@ emit '. emit 1 /string type |
scratch over c@ emit '. emit 1 /string type |
| 'E emit . ; |
'E emit . ; |
| |
|
| |
require debugging.fs |
| |
|
| : sfnumber ( c-addr u -- r / ) |
: sfnumber ( c-addr u -- r / ) |
| |
2dup [CHAR] e scan |
| |
dup 0= |
| |
IF |
| |
2drop 2dup [CHAR] E scan |
| |
THEN |
| |
nip |
| |
IF |
| 2dup >float |
2dup >float |
| IF |
IF |
| 2drop state @ |
2drop state @ |
| IF |
IF |
| postpone FLiteral |
POSTPONE FLiteral |
| THEN |
THEN |
| ELSE |
EXIT |
| defers notfound |
THEN |
| THEN ; |
THEN |
| |
defers notfound ; |
| |
|
| ' sfnumber IS notfound |
' sfnumber IS notfound |
| |
|
| : fvariable ( -- ) |
: fvariable ( -- ) |
| Create 0e0 f, ; |
Create 0.0E0 f, ; |
| \ does> ( -- f-addr ) |
\ does> ( -- f-addr ) |
| |
|
| 1e0 fasin 2e0 f* fconstant pi |
1.0e0 fasin 2.0e0 f* fconstant pi |
| |
|
| : f2* 2e0 f* ; |
: f2* 2.0e0 f* ; |
| : f2/ .5e0 f* ; |
: f2/ 0.5e0 f* ; |
| : 1/f 1e0 fswap f/ ; |
: 1/f 1.0e0 fswap f/ ; |
| |
|
| |
|
| \ We now have primitives for these, so we need not define them |
\ We now have primitives for these, so we need not define them |
| |
|
| \ : falog ( f -- 10^f ) [ 10e0 fln ] FLiteral f* fexp ; |
\ : falog ( f -- 10^f ) [ 10.0e0 fln ] FLiteral f* fexp ; |
| |
|
| \ : fsinh fexpm1 fdup fdup 1e0 f+ f/ f+ f2/ ; |
\ : fsinh fexpm1 fdup fdup 1.0e0 f+ f/ f+ f2/ ; |
| \ : fcosh fexp fdup 1/f f+ f2/ ; |
\ : fcosh fexp fdup 1/f f+ f2/ ; |
| \ : ftanh f2* fexpm1 fdup 2e0 f+ f/ ; |
\ : ftanh f2* fexpm1 fdup 2.0e0 f+ f/ ; |
| |
|
| \ : fatanh fdup f0< >r fabs 1e0 fover f- f/ f2* flnp1 f2/ |
\ : fatanh fdup f0< >r fabs 1.0e0 fover f- f/ f2* flnp1 f2/ |
| \ r> IF fnegate THEN ; |
\ r> IF fnegate THEN ; |
| \ : facosh fdup fdup f* 1e0 f- fsqrt f+ fln ; |
\ : facosh fdup fdup f* 1.0e0 f- fsqrt f+ fln ; |
| \ : fasinh fdup fdup f* 1e0 f+ fsqrt f/ fatanh ; |
\ : fasinh fdup fdup f* 1.0e0 f+ fsqrt f/ fatanh ; |
| |
|
| : f~ ( f1 f2 f3 -- flag ) fdup f0= IF fdrop f= EXIT THEN |
\ !! factor out parts |
| fdup f0> IF frot frot f- fabs fswap |
: f~ ( f1 f2 f3 -- flag ) \ float-ext |
| ELSE fnegate frot frot fover fabs fover fabs f+ frot frot |
fdup f0= |
| f- fabs frot frot f* THEN f< ; |
IF |
| |
fdrop f= EXIT |
| |
THEN |
| |
fdup f0> |
| |
IF |
| |
frot frot f- fabs fswap |
| |
ELSE |
| |
fnegate frot frot fover fabs fover fabs f+ frot frot |
| |
f- fabs frot frot f* |
| |
THEN |
| |
f< ; |
| |
|
| : f.s ." <" fdepth 0 .r ." > " fdepth 0 max maxdepth-.s @ min dup 0 |
: f.s ." <" fdepth 0 .r ." > " fdepth 0 max maxdepth-.s @ min dup 0 |
| ?DO dup i - 1- floats fp@ + f@ f. LOOP drop ; |
?DO dup i - 1- floats fp@ + f@ f. LOOP drop ; |
