regenerator2000

Overview

Regenerator 2000 is a modern, interactive disassembler for Commodore 8-bit machines with built-in MCP server support. It combines manual analysis through a keyboard-centric TUI with AI-driven automated analysis via the Model Context Protocol. The tool offers extensive features including disassembly, hex dump, sprites, bitmap, charset views, debugger integration, and cross-references. Its MCP server enables programmatic access through HTTP or stdio transport, allowing AI assistants to perform disassembly manipulation, memory search, and block operations with bundled analysis skills for automated block classification, routine tracing, and symbol naming.

Try asking AI

After installing, here are 5 things you can ask your AI assistant:

• disassemble

  Disassemble 6502 code at specified address

  Try:Disassemble the code at address $0800Try:Show me what's at memory location $1000
• add_label

  Add a label to a specific address

  Try:Add a label 'main' at address $0800Try:Label address $0C00 as 'init_routine'
• add_comment

  Add a comment to a specific address

  Try:Add a comment 'Initialize hardware' at address $0800Try:Comment address $0C00 with 'Start of game loop'
• set_data_type

  Set data type for a memory region

  Try:Set bytes from $0800 to $08FF as 'Byte' dataTry:Mark address $0900 as 'PETSCII Text'
• find_memory

  Search for a specific byte pattern in memory

  Try:Find all occurrences of $A9 in memoryTry:Search for the pattern $4C $F0 $38
• export_assembly

  Export disassembly to assembly file

  Try:Export to 64tass assembler formatTry:Save the current disassembly as ACME format
• x_ref

  Show cross-references for a specific label or address

  Try:Show all references to 'main'Try:Find where address $0C00 is used
• analyze_blocks

  Automatically analyze and classify code blocks

  Try:Analyze the code between $0800 and $1000Try:Auto-classify all code blocks
• trace_routine

  Trace execution path of a routine starting at address

  Try:Trace the routine starting at $0800Try:Follow the execution from address $0C00
• import_lbl

  Import VICE labels from file

  Try:Import labels from vice.lblTry:Load labels from myproject.lbl
• export_html

  Export disassembly to HTML format

  Try:Export to HTML for web viewingTry:Generate HTML documentation of the code
• connect_vice

  Connect to VICE debugger at specified address

  Try:Connect to VICE at localhost:6502Try:Attach to VICE binary monitor

Note: Tools were inferred from the MCP server description and CLI options. The README mentions MCP server functionality for disassembly manipulation, memory search, and block operations, but doesn't provide explicit tool names or signatures.

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Installation

cargo install regenerator2000

regenerator2000 --mcp-server

{
  "mcpServers": {
    "regenerator": {
      "command": "regenerator2000",
      "args": ["--mcp-server-stdio"]
    }
  }
}

FAQ

What file formats does Regenerator 2000 support?

It supports PRG, CRT, D64, D71, D81, T64, VSF, RAW/BIN, DIS65, and REGEN2000PROJ formats.

How do I export assembly code?

Use the `--export_asm <PATH>` option or export through the UI. It supports 64tass, ACME, Kick Assembler, and ca65 formats.

On Hacker News

Recent discussion from the developer community.

• A 6502 disassembler with a TUI: A modern take on Regenerator▲ 92💬 11
  Story by wslh · 2026-03-20

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