add definition literal support

src/main/scala/com/htmlism/mos6502/dsl/Address.scala

@@ -11,6 +11,9 @@ object ZeroAddress {
       def toShow(x: ZeroAddress): String =
         String.format("global address 0x%02x", x.n)
 
+      def toDefinitionLiteral(x: ZeroAddress): String =
+        toAddressLiteral(x)
+
       def toAddressLiteral(x: ZeroAddress): String =
         String.format("$%02x", x.n)
     }
@@ -27,6 +30,9 @@ object GlobalAddress {
       def toShow(x: GlobalAddress): String =
         String.format("global address 0x%04x", x.n)
 
+      def toDefinitionLiteral(x: GlobalAddress): String =
+        toAddressLiteral(x)
+
       def toAddressLiteral(x: GlobalAddress): String =
         String.format("$%04x", x.n)
     }

src/main/scala/com/htmlism/mos6502/dsl/AsmDocumentContext.scala

@@ -57,7 +57,7 @@ class DefinitionGroupContext {
 case class Definition[A: Operand](name: String, x: A) {
   lazy val value: String =
     implicitly[Operand[A]]
-      .toAddressLiteral(x)
+      .toDefinitionLiteral(x)
 }
 
 class AsmBlockContext {

src/main/scala/com/htmlism/mos6502/dsl/Operand.scala

@@ -9,6 +9,8 @@ trait Operand[A] {
 
   def operandType: OperandType
 
+  def toDefinitionLiteral(x: A): String
+
   def contra[B](f: B => A, show: B => String): Operand[B] =
     new Operand[B] {
       val operandType: OperandType =
@@ -17,6 +19,9 @@ trait Operand[A] {
       def toShow(x: B): String =
         show(x)
 
+      def toDefinitionLiteral(x: B): String =
+        toAddressLiteral(x)
+
       def toAddressLiteral(x: B): String =
         self.toAddressLiteral(f(x))
     }
@@ -31,6 +36,9 @@ object Operand {
       def toShow(x: Int): String =
         x.toString
 
+      def toDefinitionLiteral(x: Int): String =
+        x.toString
+
       def toAddressLiteral(x: Int): String =
         String.format("#$%02x", x)
     }