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rounding modes for rd, rq, rs

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Max G 2015-08-04 06:00:09 +03:00
parent f78f794d42
commit ca9452c21b
1 changed files with 25 additions and 19 deletions
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arvo/hoon.hoon
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@ -1,4 +1,4 @@
!::::: ::::::::::::::::::::::::::::::::::::::::::::::::::::::
:::::: ::::::::::::::::::::::::::::::::::::::::::::::::::::::
:::::: :::::: Preface ::::::
:::::: ::::::::::::::::::::::::::::::::::::::::::::::::::::::
?> ?=(@ .) :: atom subject
@ -1425,7 +1425,8 @@
::
:: in order: floor, ceiling, nearest (even, away from 0, toward 0),
:: larger, smaller; t=sticky bit
++ lug ~/ %lug
++ lug
~/ %lug
|= [t=?(%fl %ce %ne %na %nt %lg %sm) a=[e=@s a=@u] s=?] ^- fn
=-
?. =(den %f) -
@ -1488,7 +1489,8 @@
?: =(den %i) [%f & a]
?: =((cmp:si emx e.a) -1) [%i &] [%f & a] :: enforce max. exp
::
++ drg ~/ %drg :: dragon4
++ drg :: dragon4
~/ %drg
|= [a=[e=@s a=@u]] ^- [@s @u]
=. a ?: (^lth (met 0 a.a) prc) (xpd a) a
=+ r=(lsh 0 ?:((syn:si e.a) (abs:si e.a) 0) a.a)
@ -1724,7 +1726,7 @@
|= [a=dn] ^- fn
?: ?=([%n *] a) [%n ~]
?: ?=([%i *] a) [%i s.a]
=> .(r %n) :: always rnd nearest
=> .(r %n)
=+ q=(abs:si e.a)
?: (syn:si e.a)
(mul [%f s.a --0 a.a] [%f & e.a (pow 5 q)])
@ -1814,10 +1816,10 @@
++ rylq |= a=dn ^- @rq (grd:rq a)
::
++ rd
~% %rd + ~
|%
~% %rd +> ~
|_ r=?(%n %u %d %z)
++ ma
%*(. ff w 11, p 52, b --1.023)
%*(. ff w 11, p 52, b --1.023, r r)
++ sea
|= [a=@rd] (sea:ma a)
++ bit
@ -1849,10 +1851,10 @@
--
::
++ rs
~% %rs + ~
|%
~% %rs +> ~
|_ r=?(%n %u %d %z)
++ ma
%*(. ff w 8, p 23, b --127)
%*(. ff w 8, p 23, b --127, r r)
++ sea
|= [a=@rs] (sea:ma a)
++ bit
@ -1884,10 +1886,10 @@
--
::
++ rq
~% %rq + ~
|%
~% %rq +> ~
|_ r=?(%n %u %d %z)
++ ma
%*(. ff w 15, p 112, b --16.383)
%*(. ff w 15, p 112, b --16.383, r r)
++ sea
|= [a=@rq] (sea:ma a)
++ bit
@ -1919,9 +1921,9 @@
--
::
++ rh
|%
|_ r=?(%n %u %d %z)
++ ma
%*(. ff w 5, p 10, b --15)
%*(. ff w 5, p 10, b --15, r r)
++ sea
|= [a=@rh] (sea:ma a)
++ bit
@ -5536,11 +5538,13 @@
%+ shay (add b 32)
(add (lsh 3 b q) (mix k (fil 3 b 0x5c)))
::
++ pbk ~/ %pbk :: PBKDF2-HMAC-SHA256
++ pbk :: PBKDF2-HMAC-SHA256
~/ %pbk
|= [p=@ s=@ c=@ d=@]
(pbl p (met 3 p) s (met 3 s) c d)
::
++ pbl ~/ %pbl :: w/length
++ pbl :: w/length
~/ %pbl
|= [p=@ pl=@ s=@ sl=@ c=@ d=@]
=> .(p (end 3 pl p), s (end 3 sl s))
=+ h=32
@ -5563,11 +5567,13 @@
$(t (add t (lsh 3 (mul (dec j) h) f)), j +(j))
(end 3 d t)
::
++ hsh ~/ %hsh :: scrypt
++ hsh :: scrypt
~/ %hsh
|= [p=@ s=@ n=@ r=@ z=@ d=@]
(hsl p (met 3 p) s (met 3 s) n r z d)
::
++ hsl ~/ %hsl :: w/length
++ hsl :: w/length
~/ %hsl
|= [p=@ pl=@ s=@ sl=@ n=@ r=@ z=@ d=@]
=| v=(list (list ,@))
=> .(p (end 3 pl p), s (end 3 sl s))