Adder Subtractor with Minus Sign for Negative Outputs

366

04:51:59

The logic source towards the middle of the top edge of the screen controls whether it's in addition or subtraction mode. Low means addition and high means subtraction. The decimal point is for carry out and is only available for addition, and the minus sign means negative output and is only available for subtraction. If it gives a wrong answer that's just because it takes up to 5 seconds to finish computing and while it's doing that the output can give just about any answer no matter how wildly wrong.

published 8 years ago

KE4CPC

8 years ago

Excellent expression of TTL, good job!

Jenda_cz

8 years ago

Good big circuit

eekee

7 years ago

Oh nice!

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