Re: Just bunged them a tenner
"I tweaked a 1401 emulator written in 360 assembler to run most of these programs on the 360."
But, did you know that certain models of the S/360 offered special microcode to allow it to think that it was a 1401, as well as some other systems?
https://en.wikipedia.org/wiki/IBM_System/360#Backward_compatibility