Alu diagram hack. Nand2tetris with diagram part 6. Ben eater recommended for you. This project is submitted for. So it is only one if both a and b are 1.
And i hope that i convince you that the hack alu is both simple but quite sophisticated. 1 1 1 0 2 4 8 7 3 5 7 9 6 0 6 6. The last function is or. 9 inppputs 4 outputs.
We build 4 bit adder. Together this delivers the or function. Full vhdl code for the alu was presented. Verilog code for arithmetic logic unit alu last time an arithmetic logic unit alu is designed and implemented in vhdl.
The control bits of. It can also do a few less used functions similar to what the 74181. The only difference with and is that control f0 is now active. Same idea scales to 128 bit adder.
Contribute to zachallaunhs nand2tetris development by creating an account on github. An alu was designed with only 7 ics. This causes an active alu result when a and b are different. The alu result will only be one if rl2 is off so both inputs equal and input b is 1.
This project was created on 08152018 and last updated a year ago. So this has been the unit on the alu and this leads up to the next unit in which we will get our hands dirty and build one such alu along with some other chips. It has a fast carry output. With creating this arithmetic logic unit alu we reached a point where we can view binary buses as simple inputs and worry only about what operations we can perform on them.
It normally executes logic and arithmetic operations such as addition subtraction multiplication division etc. Alu for the hack computer building a modern computer system based on the nand2tetris book elements of computing systems. The return of the square inch project. When a and b are the same the result is 1 if b is 1 as in and.