I'm doing my homework for digital logic in logisim. I need to make function solver for this function: f(x,y) = 6*y-8+x in 4bit arithmetic. Here is my solution but it is not working for some inputs. I don't know where I failed. I will be thankful if you can help me somehow :) Thanks
Solution: 
Edit: it is working, for example for 0000 for X, and 0101 for Y, but it is not working for 0000 and 1101. I need to get solution for function above
I'm doing my homework for digital logic in logisim. I need to make function solver for this function: f(x,y) = 6*y-8+x in 4bit arithmetic. Here is my solution but it is not working for some inputs. I don't know where I failed. I will be thankful if you can help me somehow :) Thanks
Solution:
I'm doing my homework for digital logic in logisim. I need to make function solver for this function: f(x,y) = 6*y-8+x in 4bit arithmetic. Here is my solution but it is not working for some inputs. I don't know where I failed. I will be thankful if you can help me somehow :) Thanks
Solution:
Edit: it is working, for example for 0000 for X, and 0101 for Y, but it is not working for 0000 and 1101. I need to get solution for function above
I'm doing my homework for digital logic in logisim. I need to make function solver for this function: f(x,y) = 6*y-8+x in 4bit arithmetic. Here is my solution but it is not working for some inputs. I don't know where I failed. I will be thankful if you can help me somehow :) Thanks
Solution:
