pi8bit - Hobby project

• logic simulator created to simulate 8-bit computer
• writtern in python using pygame (SDL)

requirements

• python 2.7
• pygame
• pygtk (file dialog)

app

• logic simulator is opt/pybit.py
• you can load existing circuits or create new (using not existing filename)
• main file of the computer is opt/computer/8_bit_computer.txt
• press RESET toggle in Clock control before doing anything!
• compiler is opt/compiler/compile.py
• assembler command description opt/compiler/asm_commands.txt
• binary instruction description opt/compiler/instructions.txt
• standard output memory image with name a.out (you can load it by clicking on memory cell)

controls

• left mouse - change state of inputs and tgl
• middle mouse - pan
• mouse weel - zoom
• Left ctrl - move mouse using the snap grid
• E - edit mode
  • A - add mode (right change cell, left place cell)
  • M - add module (right load cell, left place cell)
  • W - wiring (left place wire, right remove node or connection)
  • R - rename (rename cell, rename net, change label text)
  • Left shift - multipe selection
  • DEL - delete selected objects
  • ESC - return
• D - debug mode
  • space - stepping
  • ESC - return