Result of feedback form submitted by Ritter (E.Ritter@cs.bham.ac.uk) on Monday, August 10, 1998 at 15:14:21 --------------------------------------------------------------------------- Contributions offered by Eike Ritter for topics F (games, sequentiality, and abstract machines), H (semantics-based optimisation) We present a linear abstract machine based on a calculus with explicit substitutions. We exploit the distinction between intuitionistic and linear variables in DILL (Dual Intuitionistic Linear Logic) to construct a machine which extends Krivine's machine by adding a machine for linear types on top of it. This separation makes it easy to show that this machine has the single pointer property: each variable of linear type has exactly one pointer to it. We also present an algorithm for translating lambda-terms into linear lambda-terms which tries to preserve linearity as much as possible. This is joint work with Francisco Alberti, Neil Ghani and Valeria de Paiva.