It seems like you'll have to include some examples, or maybe a single running example throughout. For (meta-)example:
  1. An interpreter for a basic arithmetic language.
  2. One for a fancier version.
  3. Turning that into a compiler.
  4. Doing something fancy with the compiler.
Doing this in a generic way would be terribly hard. It would be much easier to choose an example source and target language, and the semantic mismatches between source and target would substantially shape your talk.

One really cool example here would be to "compile" a subset of Ruby into Perl, to show just how little semantic difference there is. Another would be compiling X to C, since you would have to describe implementing X's runtime. Another would be translating to Perl (see e.g. my Language::FP, which has both an interpreter and a compiler), since it wouldn't require introducing a third language (even though Perl elaborate semantics make the translation tricky).

In reply to Re^3: Writing Interpreters, Compilers and Translators in Perl by educated_foo
in thread Writing Interpreters, Compilers and Translators in Perl by Moron

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