Coder for PP-BESM programs as described by "Esrhov, A.P. Programming Programme for the BESM Computer. Translated by M. Nadler, Pergamon Press, 1959."
pp-besm
includes a nifty feature that wasn't possible back in 1959, a parser for the source language! No more handwriting 39-bit binary to encode your program! It will output a file containing in which each 39-bit word is encoded in the bottom bits of a 64-bit (modern) word.