Magic‐1 Emulator Project Status Analysis - retrotruestory/M1DEV GitHub Wiki
Magic-1 Emulator Project Status Analysis
Based on the code I've reviewed so far, here's an assessment of your Magic-1 emulator project:
Implemented Components
-
CPU Core:
- Basic CPU operations (execute, step, start, stop, halt)
- Microcode execution framework
- Beginning of instruction execution logic
-
Memory Management:
- Memory read/write operations
- ROM loading capability
- I/O memory mapping
-
I/O Devices:
- UART implementation (mostly complete)
- IDE controller framework with register interface
- RTC device placeholder
-
Tools:
- Disk image creation utility (fully implemented)
- FAT16 filesystem support
-
Main Application:
- Command-line argument handling
- GUI/headless mode options
- Basic emulator initialization
Components In Progress
-
Instruction Set:
- Not all Z80-like instructions are implemented
- Microcode implementation incomplete
-
Debugger Support:
- Breakpoint manager missing
- Disassembler incomplete
-
Emulation Loop:
- Threading foundation exists but execution loop incomplete
- Missing CPU throttling for accurate timing
-
Disk Controller:
- IDE interface started but command handling incomplete
- Partition analysis exists but not fully integrated
Missing Components
-
GUI Implementation:
- Main window classes need implementation
- Debug views (registers, memory, disassembly) missing
- Console I/O interface incomplete
-
Test Suite:
- Systematic tests for instruction execution
- Test ROMs for various functions
-
Documentation:
- User guide
- Developer documentation
- Inline code comments could be improved
Recommendations for Next Steps
Based on what I've seen, I recommend focusing on these areas to get the emulator to a working state:
-
Complete the CPU instruction set implementation
- Prioritize the core instructions needed to run test programs
- Implement microcode for complex instructions
-
Finish the emulation thread loop
- Add proper timing/throttling
- Implement clean pausing/resuming
-
Complete the MainWindow UI implementation
- Focus on necessary views: registers, memory, disassembly, console
- Implement start/stop/step/reset functionality
-
Create a simple test ROM
- Develop a test program that exercises all implemented instructions
- Add console I/O tests to verify UART functionality
Would you like me to focus on implementing any of these specific components next?