renamed program to assembler (to avoid clashes in vm)

lib/asm/assembler.rb

@@ -6,14 +6,14 @@ require "asm/string_literal"
 
 module Asm
   
-  # Program is the the top-level of the code hierachy, except it is not derived from code
+  # Assembler is the the top-level of the code hierachy, except it is not derived from code
-  # instead a Program is a list of blocks (and string constants)
+  # instead a Assembler is a list of blocks (and string constants)
   
   # All code is created in blocks (see there) and there are two styles for that, for forward of backward
   # referencing. Read function block and add_block and Block.set
   
   
-  class Program
+  class Assembler
 
     def initialize
       @blocks = []

lib/asm/block.rb

@@ -119,7 +119,7 @@ module Asm
     end
 
     # length of the codes. In arm it would be the length * 4
-    # (strings are stored globally in the Program)
+    # (strings are stored globally in the Assembler)
     def length 
       @codes.inject(0) {| sum  , item | sum + item.length}
     end

lib/crystal.rb

@@ -1,6 +1,6 @@
 require 'parslet'
 
-require "asm/program"
+require "asm/assembler"
 require "elf/object_writer"
 require 'parser/composed'
 require 'parser/transform'

test/test_crystal.rb

@@ -6,9 +6,9 @@ require_relative 'helper'
 #  adc add and bic eor orr rsb rsc sbc sub mov mvn cmn cmp teq tst b bl bx swi strb
 
 class TestArmAsm < MiniTest::Test
-  # need Program and a block (see those classes) 
+  # need Assembler and a block (see those classes) 
   def setup
-    @program = Asm::Program.new
+    @program = Asm::Assembler.new
     #no ruby block given, ie need to add this block later by hand
     @block = @program.block
   end

test/test_runner.rb

@@ -26,7 +26,7 @@ class TestRunner < MiniTest::Test
     # execute
     # check result ?
     context = Vm::Context.new
-    builder = Asm::Program.new
+    builder = Asm::Assembler.new
     compiled = tree.compile( builder , context )
     puts compiled.inspect
   end

test/test_small_program.rb

@@ -9,7 +9,7 @@ require_relative 'helper'
 class TestSmallProg < MiniTest::Test
   # need a code generator, for arm 
   def setup
-    @program = Asm::Program.new
+    @program = Asm::Assembler.new
   end
 
   def test_loop