Youtor
Z80 tester
>> YOUR LINK HERE: ___ http://youtube.com/watch?v=y2N-uJTZXGg
This is a simple circuit to test the functioning of a Zilog Z80 CPU. The CPU will load the op-code $00 from the data bus that stands for the NOP instruction. If the chip is working well, it will execute it, doing nothing: then, it will increment the Program Counter and look for the next instruction in the memory. During the loading of the instructions, the LEDs put on the address pins will behave like a binary counter, turning on and off repeatedly. • More info: http://www.leonardomiliani.com/en/201...
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