X-Git-Url: https://thelambdalab.xyz/gitweb/index.cgi?a=blobdiff_plain;f=defer-is.4th;h=89f07de5986924c0b2672cf611c440c9ff794455;hb=a95efe1cb2d3774471bb9c0fe4628abe09032ca6;hp=07f134264d32612fe362f181c43b09059c07a67e;hpb=385421e5768281c250e22ac5d7ab8da026dea86c;p=scheme.forth.jl.git

diff --git a/defer-is.4th b/defer-is.4th
index 07f1342..89f07de 100644
--- a/defer-is.4th
+++ b/defer-is.4th
@@ -1,4 +1,4 @@
-\ Add words supporting deferred execution
+\ Words supporting deferred execution
 
 : abort-defer
     ." Tried to execute undefined deferred word." cr abort ;
@@ -18,7 +18,7 @@ hide abort-defer
 : is immediate
     bl word find
 
-    0= abort" Undefined deferred word."
+    0= abort" Tried to define unknown deferred word."
 
     state @ 0= if
         defer!
@@ -33,3 +33,9 @@ hide abort-defer
     0 ,
     here docol ,
     [compile] ] ;
+
+
+\ Need this for tail call optimization
+
+: goto-deferred ( cfa -- )
+    R> drop >body @ >body >R ;