> On Sep 23, 2015, at 10:30 AM, Jay Jaeger <cu...@charter.net> wrote: > > On 9/23/2015 9:10 AM, Mouse wrote: >>> I am 100% certain, for example, that it would be possible to come up >>> with a C compiler for a 40K IBM 1410, which is in the set you >>> describe. >> >> Possible? Sure. But it would be difficult; you would need to simulate >> a binary machine - C has a whole bunch of stuff that is defined to >> operate "as if" certain things are stored in binary.
Worse yet, two's complement binary. At least nowadays. Which makes me suspect that there had to be some shortcuts taken when C was implemented on the CDC 6000 series. (Interestingly enough, if you ignore that little detail, it isn't terribly hard to write the skeleton of a 6000 code generator back-end for GCC...) paul