Hardware testing completed 3

Hardware testing completed
Yes – the wire wrapped CPU prototype now passes all tests. Since I finished construction a couple of months ago I have been trying to eliminate all outstanding logic bugs and make the machine more stable. Only at this point I am confident enough to declare the preliminary QA phase completed and happily spread this ...

Race conditions 2

Race conditions
I think I am running into all kinds of logic design pitfalls possible. Although it slows me down quite a bit, I consider this an excellent educational experience. Race conditions is what hit me this time. In general a race condition is a state of a logic system in which particular logic gate temporarily outputs ...