[chuck-dev] Where does the Chuck_VM_Shreduler::now_system attribute get incremented?

Hi In trying to auto-port ChucK to JavaScript through Emscripten, I am experiencing that the JavaScript version of ChucK's system clock (i.e., Chuck_VM_Shreduler::now_system), gets incremented by two seconds (i.e. 88200) for some reason I don't yet understand. Only 4096 samples have been processed at that point. Could someone be so kind as to point out in which parts of ChucK now_system gets incremented, to help me debug this issue? Thanks! Arve