請問如何畫以下的電路圖
Logic Design Experiment 2 - Two-bit Unsigned-binary Subtractor
Construct a two-bit unsigned-binary subtractor. The inputs are two two-bit unsigned binary A and B. The logic circuit will be able to calculate A-B.
Use DIP switches to set inputs High or Low. Use green (red) LEDs to indicate the High state of input (output) bits. Light a yellow LED if the result is negative.
Parts:
1. DIP switch (4-bit) *1
2. 7400 (NAND) *2
3. 7401 (NAND) *2
4. 7402 (NOR) *2
5. 7404 (NOT) *2
6. 7410 (NAND) *2
7. 7411 (AND) *2
8. 7432 (OR) *2
9. LED (green) *4
10. LED (red) *2
11. LED (yellow) *1
12. 1Kohm R *4
13. 0.22Kohm R *7

你有自己畫出來的圖嗎?
你知道所要求的是什麼嗎?
如果不知道的話,趕快查一查,如果知道了,就根據內容把電路畫一畫.

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