fibinacci actually compiles, doesnt mean it works though

test/runners/fibo_while.rb

@@ -5,10 +5,9 @@ def fibonaccit(n) # n == r0
     tmp = a       # r3 <- r1
     a = b         # r1 <- r2
     b = tmp + b   #  r4 = r2 + r3  (r4 transient)  r2 <- r4 
-    tmp = putint(b)
-    putstring(tmp)   
-    n = n - 1      # r2 <- 0   ????   #call ok  
-  end             #r5 <- r0 - 1                  # r0 <- r5
-end
+    putint(b)
+    n = n - 1      # r0 <- r2   for call,    #call ok  
+  end             #r5 <- r0 - 1    n=n-1 through r5 tmp              
+end               # r0 <- r5
 
 fibonaccit( 10 )

test/test_runner.rb

@@ -22,6 +22,7 @@ class TestRunner < MiniTest::Test
     parser = Parser::Crystal.new
     program = Vm::Program.new "Arm"
     syntax  = parser.parse_with_debug(string)
+    assert syntax
     parts   = Parser::Transform.new.apply(syntax)
     # file is a list of expressions, all but the last must be a function
     # and the last is wrapped as a main
@@ -37,7 +38,7 @@ class TestRunner < MiniTest::Test
     program.link_at( 0 , program.context )
     
     binary = program.assemble(StringIO.new )
-
+    assert binary
     writer = Elf::ObjectWriter.new(Elf::Constants::TARGET_ARM)
     blocks = program.functions.collect{ |f| [f.entry , f.exit , f.body] } 
     blocks += [program.entry , program.exit , program.main]