Some background (and a bit of speculation) can be found in this retrocomputing StackExchange topic: https://retrocomputing.stackexchange.com/questions/4984/how

Some background (and a bit of speculation) can be found in this retrocomputing StackExchange topic: https://retrocomputing.stackexchange.com/questions/4984/how-was-the-traf-o-data-8008-simulator-developed https://retrocomputing.stackexchange.com/questions/4984/how-... And a bit more about the PDP10 macro assembler that was used (also for 6502 BASIC) at Michael Steil's site: https://www.pagetable.com/?p=774 https://www.pagetable.com/?p=774