https://github.com/keyvank/pygates

Simulating a CPU made of logic gates
https://github.com/keyvank/pygates

Last synced: about 2 months ago
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Simulating a CPU made of logic gates

• Host: GitHub
• URL: https://github.com/keyvank/pygates
• Owner: keyvank
• License: mit
• Created: 2023-09-04T21:53:52.000Z (about 1 year ago)
• Default Branch: main
• Last Pushed: 2024-03-17T12:38:28.000Z (6 months ago)
• Last Synced: 2024-06-30T08:05:09.151Z (3 months ago)
• Language: Python
• Size: 68.4 KB
• Stars: 4
• Watchers: 2
• Forks: 0
• Open Issues: 0
• Metadata Files:
  • Readme: README.md
  • License: LICENSE

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README

        
# PyGates

Trying to understand how computers work at the transistor level in a Python simulation.

A Von-Neumann Brainfuck CPU:

```

FWD

P = P + 1

PC = PC + 1

MEM[P] = MEM[P]

BWD

P = P - 1

PC = PC + 1

MEM[P] = MEM[P]

INC

P = P

PC = PC + 1

MEM[P] = MEM[P] + 1

DEC

P = P

PC = PC + 1

MEM[P] = MEM[P] - 1

JZ

P = P

PC = X

MEM[P] = MEM[P]

```

```

P =

    p+1 if 0b000

    p-1 if 0b001

    else p

PC =

    X if 0b100 && 

    else PC + 1

MEM[P] =

    MEM[P] + 1 if 0b010

    MEM[P] - 1 if 0b011

    else MEM[P]

```