X-Git-Url: https://thelambdalab.xyz/gitweb/index.cgi?a=blobdiff_plain;f=src%2Fscheme-primitives.4th;h=7e123f71184d496b628d6571e323000b580ceada;hb=007ee2a4d8f3b87779599f06512973c92d0640e8;hp=9203f71c721c26b0c7d887747a395dfbd1523c2b;hpb=73373387ae07d9da0ee049d96338555707b6d7b7;p=scheme.forth.jl.git

diff --git a/src/scheme-primitives.4th b/src/scheme-primitives.4th
index 9203f71..7e123f7 100644
--- a/src/scheme-primitives.4th
+++ b/src/scheme-primitives.4th
@@ -1,4 +1,4 @@
-\ ==== Type predicates ==== {{{
+\ ==== Type predilcates ==== {{{
 
 :noname ( args -- boolobj )
     nil objeq? boolean-type
@@ -16,6 +16,10 @@
     fixnum-type istype? -rot 2drop boolean-type
 ; 1 make-fa-primitive fixnum?
 
+:noname ( args -- boolobj )
+    flonum-type istype? -rot 2drop boolean-type
+; 1 make-fa-primitive flonum?
+
 :noname ( args -- boolobj )
     character-type istype? -rot 2drop boolean-type
 ; 1 make-fa-primitive char?
@@ -29,7 +33,13 @@
 ; 1 make-fa-primitive pair?
 
 :noname ( args -- boolobj )
-    primitive-proc-type istype? -rot 2drop boolean-type
+    primitive-proc-type istype? if
+        true
+    else
+        compound-proc-type istype?
+    then
+        
+    -rot 2drop boolean-type
 ; 1 make-fa-primitive procedure?
 
 \ }}}
@@ -141,7 +151,7 @@
 
 \ }}}
 
-\ ==== Primitivle Arithmetic ==== {{{
+\ ==== Numeric types ==== {{{
 
 \ --- Fixnums ---
 
@@ -165,15 +175,15 @@
     drop swap drop >= boolean-type
 ; 2 make-fa-primitive fix:>=
 
-:noname ( fixnum fixnum -- boolobj )
+:noname ( fixnum -- boolobj )
     drop 0= boolean-type
 ; 1 make-fa-primitive fix:zero?
 
-:noname ( fixnum fixnum -- boolobj )
+:noname ( fixnum -- boolobj )
     drop 0> boolean-type
 ; 1 make-fa-primitive fix:positive?
 
-:noname ( fixnum fixnum -- boolobj )
+:noname ( fixnum -- boolobj )
     drop 0< boolean-type
 ; 1 make-fa-primitive fix:negative?
 
@@ -209,11 +219,177 @@
     swap negate swap
 ; 1 make-fa-primitive fix:neg
 
+:noname ( fixnum -- -fixnum )
+    swap abs swap
+; 1 make-fa-primitive fix:abs
+
+: sort-pair
+    2dup > if
+        swap
+    then
+;
+
 ( Find the GCD of n1 and n2 where n2 < n1. )
 : gcd ( n1 n2 -- m )
-    
+    sort-pair
+    over 0= if
+        swap drop
+    else
+        over mod
+        recurse
+    then
 ;
 
+:noname ( fixnum fixnum -- fixnum' )
+    drop swap drop gcd fixnum-type
+; 2 make-fa-primitive fix:gcd
+
+\ --- Flonums ---
+
+:noname ( flonum flonum -- bool )
+    objeq? boolean-type
+; 2 make-fa-primitive flo:=
+
+:noname ( flonum flonum -- bool )
+    drop swap drop f< boolean-type
+; 2 make-fa-primitive flo:<
+
+:noname ( flonum flonum -- bool )
+    drop swap drop f> boolean-type
+; 2 make-fa-primitive flo:>
+
+
+:noname ( flonum -- bool )
+    drop 0.0 = boolean-type
+; 1 make-fa-primitive flo:zero?
+
+:noname ( flonum -- bool )
+    drop 0.0 f> boolean-type
+; 1 make-fa-primitive flo:positive?
+
+:noname ( flonum -- bool )
+    drop 0.0 f< boolean-type
+; 1 make-fa-primitive flo:negative?
+
+
+:noname ( flonum1 flonum2 -- flonum1+flonum2 )
+    drop swap drop f+ flonum-type
+; 2 make-fa-primitive flo:+
+
+:noname ( flonum1 flonum2 -- flonum1-flonum2 )
+    drop swap drop f- flonum-type
+; 2 make-fa-primitive flo:-
+
+:noname ( flonum1 flonum2 -- flonum1*flonum2 )
+    drop swap drop f* flonum-type
+; 2 make-fa-primitive flo:*
+
+:noname ( flonum1 flonum2 -- flonum1/flonum2 )
+    drop swap drop f/ flonum-type
+; 2 make-fa-primitive flo:/
+
+:noname ( flonum1 flonum2 -- flonum1/flonum2 )
+    drop swap drop f/ flonum-type
+; 2 make-fa-primitive flo:/
+
+
+:noname ( flonum -- bool )
+    drop dup
+    fnan? swap finf? or invert
+; 1 make-fa-primitive flo:finite?
+
+
+:noname ( flonum -- flonum )
+    swap -1.0 f* swap
+; 1 make-fa-primitive flo:neg
+
+:noname ( flonum -- flonum )
+    swap fabs swap
+; 1 make-fa-primitive flo:abs
+
+:noname ( flonum -- flonum )
+    swap fexp swap
+; 1 make-fa-primitive flo:exp
+
+:noname ( flonum -- flonum )
+    swap flog swap
+; 1 make-fa-primitive flo:log
+
+:noname ( flonum -- flonum )
+    swap fsin swap
+; 1 make-fa-primitive flo:sin
+
+:noname ( flonum -- flonum )
+    swap fcos swap
+; 1 make-fa-primitive flo:cos
+
+:noname ( flonum -- flonum )
+    swap ftan swap
+; 1 make-fa-primitive flo:tan
+
+:noname ( flonum -- flonum )
+    swap fasin swap
+; 1 make-fa-primitive flo:asin
+
+:noname ( flonum -- flonum )
+    swap facos swap
+; 1 make-fa-primitive flo:acos
+
+:noname ( flonum -- flonum )
+    swap fatan swap
+; 1 make-fa-primitive flo:atan
+
+:noname ( flonum -- flonum )
+    swap fsqrt swap
+; 1 make-fa-primitive flo:sqrt
+
+:noname ( flonum flonum -- flonum )
+    drop swap drop f^ flonum-type
+; 2 make-fa-primitive flo:expt
+
+:noname ( flonum -- flonum )
+    swap floor swap
+; 1 make-fa-primitive flo:floor
+
+:noname ( flonum -- flonum )
+    swap ceiling swap
+; 1 make-fa-primitive flo:ceiling
+
+:noname ( flonum -- flonum )
+    swap truncate swap
+; 1 make-fa-primitive flo:truncate
+
+:noname ( flonum -- flonum )
+    swap fround swap
+; 1 make-fa-primitive flo:round
+
+:noname ( flonum -- flonum )
+    drop floor f->i fixnum-type
+; 1 make-fa-primitive flo:floor->exact
+
+:noname ( flonum -- flonum )
+    drop ceiling f->i fixnum-type
+; 1 make-fa-primitive flo:ceiling->exact
+
+:noname ( flonum -- flonum )
+    drop truncate f->i fixnum-type
+; 1 make-fa-primitive flo:truncate->exact
+
+:noname ( flonum -- flonum )
+    drop f->i fixnum-type
+; 1 make-fa-primitive flo:round->exact
+
+:noname ( flonum flonum -- flonum )
+    drop swap drop f/ fatan flonum-type
+; 2 make-fa-primitive flo:atan2
+
+
+\ --- Conversion ---
+
+:noname ( fixnum -- flonum )
+    drop i->f flonum-type
+; 1 make-fa-primitive fixnum->flonum
+
 \ }}}
 
 \ ==== Pairs and Lists ==== {{{