An implementation model is specified for the MADCAP VI programming language on the Rice Research Computer. The features of the language and machine are examined and a theoretical model is developed based on the Contour Model of Johnson and Berry. The model is then expanded and detailed for the expression node structure of the language. A multienvironment access and control scheme is worked out using the features of the machine, and a working unit is described. A hybrid stack-access tree is used for the value implementation, and a tree of control word addressed segments for the algorithm. Finally some questions regarding language and machine design are considered and areas for future research presented.