Last updated Unknown
Status:
Links: Nand2Tetris Project 5
HACK Computer Implementation
Notes
- Fairly easy as I just had to connect the different chips
- Used the pins in the example for my own program
- Super cool to see everything all build upon each other to create a computer :)
Code
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CHIP Computer {
IN reset;
PARTS:
//RAMout
//ROMout
//loadRAM
//RAMin
//RAMaddress
//ROMaddress
CPU(inM=RAMout, instruction=ROMout, reset=reset, writeM=loadRAM, outM=RAMin, addressM=RAMaddress, pc=ROMaddress);
Memory(in=RAMin, load=loadRAM, address=RAMaddress, out=RAMout);
ROM32K(address=ROMaddress, out=ROMout);
}
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Truth Table
| time |
reset |
ARegister |
DRegister |
PC[] |
RAM16K[0] |
RAM16K[1] |
RAM16K[2] |
| 0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
| 1 |
0 |
2 |
0 |
1 |
0 |
0 |
0 |
| 2 |
0 |
2 |
2 |
2 |
0 |
0 |
0 |
| 3 |
0 |
3 |
2 |
3 |
0 |
0 |
0 |
| 4 |
0 |
3 |
5 |
4 |
0 |
0 |
0 |
| 5 |
0 |
0 |
5 |
5 |
0 |
0 |
0 |
| 6 |
0 |
0 |
5 |
6 |
5 |
0 |
0 |
| 7 |
1 |
0 |
5 |
0 |
0 |
0 |
0 |
| 8 |
0 |
2 |
5 |
1 |
0 |
0 |
0 |
| 9 |
0 |
2 |
2 |
2 |
0 |
0 |
0 |
| 10 |
0 |
3 |
2 |
3 |
0 |
0 |
0 |
| 11 |
0 |
3 |
5 |
4 |
0 |
0 |
0 |
| 12 |
0 |
0 |
5 |
5 |
0 |
0 |
0 |
| 13 |
0 |
0 |
5 |
6 |
5 |
0 |
0 |