From eb93827226814b2e6fa4ac07abed8ab0b752bca2 Mon Sep 17 00:00:00 2001
From: Tim Vaughan <tgvaughan@gmail.com>
Date: Sat, 23 Apr 2016 23:29:18 +1200
Subject: [PATCH] NL only prints "ok" in state 0

---
 src/forth.jl | 15 +++++++++++----
 1 file changed, 11 insertions(+), 4 deletions(-)

diff --git a/src/forth.jl b/src/forth.jl
index 3363ea7..0c9cf4f 100644
--- a/src/forth.jl
+++ b/src/forth.jl
@@ -784,11 +784,16 @@ end)
 INTERPRET = defPrim("INTERPRET", () -> begin
 
     callPrim(mem[WORD])
+
+    wordName = getString(mem[reg.PSP-1], mem[reg.PSP])
+    println("... ", replace(wordName, "\n", "\\n"), " ...")
+
     callPrim(mem[TWODUP])
     callPrim(mem[FIND])
 
     wordAddr = mem[reg.PSP]
 
+
     if wordAddr>0
         # Word in dictionary
 
@@ -811,8 +816,6 @@ INTERPRET = defPrim("INTERPRET", () -> begin
 
         popPS()
 
-        wordName = getString(mem[reg.PSP-1], mem[reg.PSP])
-
         callPrim(mem[NUMBER])
 
         if popPS() != 0
@@ -840,7 +843,9 @@ QUIT = defWord("QUIT",
     BRANCH,-2])
 
 NL = defPrim("\n", () -> begin
-    println(" ok")
+    if mem[STATE] == 0
+        println(" ok")
+    end
     return mem[NEXT]
 end)
 
@@ -872,7 +877,9 @@ function runVM()
     # Primitive processing loop.
     # Everyting else is simply a consequence of this loop!
     jmp = mem[NEXT]
-    while (jmp = callPrim(jmp)) != 0 end
+    while (jmp = callPrim(jmp)) != 0
+        println("Evaluating prim $jmp")
+    end
 end
 
 # Debugging tools
-- 
2.20.1