multism 10.0 simulation bug? -- or -- is this a newbee user error?

[newbee Challenger]

loaded sample schema: "decadeCounterUserLoad.ms10"

set the initial counter (lower counter display) to "4d", and the up/down switch to count "up"...

then when releasing the "load" switch... the counter incorrectly counts from "40, 41, 42..."  instead of "4d, 4e, 4f..."

go figure...

[newbee Challenger]

sample circuit attached...

[lacy]

You are correct in your observation. The circuit is working properly. The 74LS190N is a BCD Counter meaning that it will only count from 0-9. If you try to load it with a value of 9 or higher then it resets back to zero on the next clock pulse. This is why it is counting from 40 instead of 4D.

I hope this helps.