X-Git-Url: https://thelambdalab.xyz/gitweb/index.cgi?a=blobdiff_plain;f=src%2Fscheme-primitives.4th;h=f94701f743c2d21222167450094cc8f6a4b8a7e2;hb=899e3f7a10cbb8ecd03aa2dfe3ad08bf4638a324;hp=1e37e0d5bd3e20451ff21e355a72b730abfab3da;hpb=5c89ece636005a3008eb27a80b0c805b4d0e4c84;p=scheme.forth.jl.git

diff --git a/src/scheme-primitives.4th b/src/scheme-primitives.4th
index 1e37e0d..f94701f 100644
--- a/src/scheme-primitives.4th
+++ b/src/scheme-primitives.4th
@@ -280,6 +280,13 @@
     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 flonum -- bool )
+    drop swap drop f>= boolean-type
+; 2 make-fa-primitive flo:>=
 
 :noname ( flonum -- bool )
     drop 0.0 = boolean-type
@@ -594,12 +601,22 @@ defer display
 
 :noname ( args -- result )
     2dup car 2swap cdr
-
+ 
     nil? false = if car then ( proc argvals )
-    
-    apply
+     
+    2swap apply
 ; make-primitive apply 
 
+: make-continuation
+  \ TODO: Capture parameter and return stacks in continuation
+;
+
+:noname ( args -- result )
+  make-continuation nil cons
+  2swap apply
+
+; 1 make-fa-primitive call-with-current-continuation
+
 \ }}}
 
 \ ==== Miscellaneous  ==== {{{
@@ -611,12 +628,15 @@ defer display
     nil? if
         ." Error."
     else
-        ." Error: "
-
-        begin
-            2dup car print
-            cdr nil?
-        until
+        ." Error:"
+
+        2dup car space display
+        cdr nil? invert if
+            begin
+                2dup car space print
+                cdr nil?
+            until
+        then
 
         2drop
     then