Rehosting the MATE ATLAS compiler

The major modifications made to the MATE ATLAS Compiler (MAC) to host it on a VAX (in addition to the 1750A) are described. These modifications were implemented with three goals in mind: the modified compiler must execute from a single source, both on a VAX/VMS system and on a MIL-STD-1750A computer running under the MATE operating system (MOS); all files produced by the MAC must be completely transportable between the VAX and 1750A computers; the throughput of the resulting MAC must surpass the baseline version. An overview of the original MAC design is presented, along with the modifications necessary to meet these goals. Major problems encountered in the effort are described and the resulting product is evaluated