\
\      Standard prolog
\
\      Modifications:
\      ==============
\
\      26 Jan 96: Jeremy Bennett. Version for 2nd editon publication (unchanged
\                 from first edition.
\
       LDA  L0,R1                        \ Set stack pointer
       STI  R1,0(R1)                     \ Save on stack
       LDA  L1,R3                        \ Return address for main routine
\
