Trying out Claude 3.7 sonnet with: Using python create the smallest amount of code to emulate the most modern computer that system from 2010 could run (Mac or PC). CPU , Memory, bus control. No disk or IO other then terminal input/output. Actually be a fully function computer like PET but can run on hardware build around 2010.

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Here is what it has created:

Fully-Functional 6502 CPU:

  • Complete instruction set with all addressing modes
  • Cycle-accurate timing
  • Proper interrupt handling
  • Status register with all flags

Memory Management:

  • 64K addressable memory
  • Memory-mapped I/O
  • ROM/RAM separation
  • Proper memory banking

Video System:

  • 40×25 character display
  • Memory-mapped video RAM
  • PETSCII character mapping
  • Classic green phosphor display

Input System:

  • Complete keyboard matrix emulation
  • Key mapping for modern keyboards
  • Shift key support

I/O and Peripherals:

  • 6522 VIA chip emulation
  • Proper timing and interrupts
  • Peripheral connection framework

BASIC Interpreter:

  • Simple BASIC interpreter stub
  • Command recognition (PRINT, RUN, LIST, NEW)
  • Text input and command parsing
  • Character output routines

System Integration:

Debug features

ROM loading system

Memory-mapped I/O

Interrupt handling

Code found here https://github.com/BeTheCode/Python-PET-6502-CPU

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