diff --git a/.env.example b/.env.example
new file mode 100644
index 0000000..3cbcbfc
--- /dev/null
+++ b/.env.example
@@ -0,0 +1,3 @@
+# OpenAI API Configuration
+# Get your API key from: https://platform.openai.com/api-keys
+OPENAI_API_KEY=your_openai_api_key_here
diff --git a/.gitignore b/.gitignore
index f06235c..9c97bbd 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,2 +1,3 @@
node_modules
dist
+.env
diff --git a/AI_CHAT_README.md b/AI_CHAT_README.md
new file mode 100644
index 0000000..7b6fc69
--- /dev/null
+++ b/AI_CHAT_README.md
@@ -0,0 +1,101 @@
+# AI Chat Assistant per Programmi BASIC del C64
+
+## Setup
+
+1. **Get your OpenAI API Key**
+ - Visit https://platform.openai.com/api-keys
+ - Create a new API key or use an existing one
+
+2. **Configure the API Key**
+ - Open the `.env` file in the project root
+ - Replace `your_openai_api_key_here` with your actual OpenAI API key:
+ ```
+ OPENAI_API_KEY=sk-your-actual-key-here
+ ```
+
+3. **Start the Development Server**
+ ```bash
+ npm run start
+ ```
+
+## Usage
+
+1. Open the web emulator at http://localhost:8081
+2. Optionally, type a BASIC program in the C64 (or load one)
+3. Click the AI chat icon (💬) in the lower tray (next to the joystick and keyboard buttons)
+4. Type your request in the chat input
+5. The AI will analyze the current BASIC program and respond
+6. If the AI proposes changes to the BASIC program, you'll see a confirmation dialog with:
+ - Description of the change
+ - The new BASIC program
+ - "Apply Changes" and "Reject" buttons
+7. Click "Apply Changes" to have the program automatically typed into the C64, or "Reject" to dismiss it
+
+## Features
+
+- **BASIC Program Context**: The AI has access to the current BASIC program in the C64's memory
+- **Interactive Modifications**: The AI can propose specific changes or write new programs
+- **Automatic Entry**: Approved programs are automatically typed into the C64
+- **User Confirmation**: All code changes require explicit user approval
+- **Conversation History**: The chat maintains context across multiple messages
+
+## How It Works
+
+1. When you send a message, the frontend extracts the current BASIC program from C64 RAM (starting at $0801)
+2. The program is detokenized (converted from internal format to readable text)
+3. The detokenized program is sent to OpenAI along with your message
+4. OpenAI (GPT-4) analyzes your request and responds
+5. If the AI wants to modify or create a program, it includes a special JSON block in its response
+6. The frontend displays a confirmation dialog showing the new program
+7. If you approve, the program is automatically typed into the C64:
+ - Types `NEW` to clear memory
+ - Types each line of the program with RETURN
+ - Ready to RUN!
+
+## Example Requests
+
+- "Write a program that draws a rainbow"
+- "Add sound effects to this program"
+- "Fix the bug on line 40"
+- "Make this program faster"
+- "Add a high score system"
+- "Convert this to use sprites"
+- "Explain what this program does"
+
+## Security Notes
+
+- **Never commit your `.env` file** - it's already in `.gitignore`
+- Keep your OpenAI API key secret
+- The AI can modify BASIC programs in the C64 when you approve changes
+- Always review proposed changes before applying them
+
+## Troubleshooting
+
+**"OpenAI API key not configured"**
+- Make sure you've created a `.env` file with a valid API key
+
+**"Failed to communicate with AI"**
+- Check your internet connection
+- Verify your API key is valid and has sufficient credits
+- Check the browser console for detailed error messages
+
+**Changes not being applied**
+- Check the browser console for error messages
+- Make sure the C64 emulator is running
+- Try typing the program manually to test
+
+**Program doesn't extract correctly**
+- Make sure you have a BASIC program loaded
+- Try typing `LIST` in the C64 to verify the program exists
+- The extractor reads from memory address $0801
+
+## Cost Considerations
+
+Using the OpenAI API incurs costs based on:
+- The amount of text sent (including your BASIC program as context)
+- The model used (GPT-4)
+- The number of requests made
+
+Monitor your usage at: https://platform.openai.com/usage
+
+Note: BASIC programs are very small compared to the emulator codebase, so costs should be minimal!
diff --git a/README.md b/README.md
index 81c2405..87d67a8 100644
--- a/README.md
+++ b/README.md
@@ -14,11 +14,52 @@ Viciious brings the outstanding capabilities of the Commodore 64 microcomputer t
- [Run the live demo](https://luxocrates.github.io/viciious/) on a desktop web browser.
- Drag-and-drop `.t64`, `.d64`, `.tap`, `.prg` or `.sid` files into the browser window.
- Your cursor keys and Shift map to a joystick plugged into Control Port 2.
- - What’s written on your keyboard is probably what gets typed in.
+ - What's written on your keyboard is probably what gets typed in.
- Click anywhere on the page to open menus.
+ - Use the AI Assistant to help write and modify BASIC programs.
The emulator distribution is a single, self-contained HTML file that does not access the Internet.
+## AI-Assisted BASIC Programming
+
+Viciious includes an AI assistant that helps you write and modify BASIC programs directly in the C64 environment:
+
+- **AI Chat Dialog**: Click the AI button in the lower tray to open a chat interface with GPT-4
+- **Context-Aware**: The AI can see your current BASIC program and suggest modifications
+- **Direct Code Injection**: Code changes are automatically tokenized and written to C64 RAM
+ - **Import/Export**: Use the Import and Export buttons to load and save BASIC programs as text files
+ - **Export to .PRG / .T64**: From the AI Assistant dialog you can now export the currently loaded BASIC program as a `.prg` file (standard C64 program) or as a minimal `.t64` tape image. Use the `Export .PRG` or `Export .T64` buttons to download a file compatible with VICE and other C64 tools.
+
+ Quick notes:
+ - `.prg` is the simplest and most widely-compatible format: it contains the 2-byte load address followed by the raw program bytes.
+ - `.t64` produces a minimal tape container wrapping the `.prg` (useful for loaders that expect tape images).
+
+### Live Reload Development Mode
+
+For rapid development, you can edit BASIC code in your favorite text editor:
+
+1. Create a file named `current.basic` in the `dist/web-dev/` directory
+2. Write or modify your BASIC program in this file
+3. Every time you save the file, the program automatically:
+ - Reloads into C64 memory
+ - Executes with the RUN command
+
+This provides a modern development workflow with instant feedback, similar to hot module reloading in web development.
+
+**Example workflow:**
+```bash
+# Start the dev server
+$ npm start
+
+# In another terminal, edit your BASIC program
+$ echo "10 PRINT \"HELLO WORLD\"" > dist/web-dev/current.basic
+$ echo "20 GOTO 10" >> dist/web-dev/current.basic
+
+# Save the file and watch it auto-run in the emulator!
+```
+
+The file watcher checks for changes every second and automatically loads and runs your code.
+
## Purpose
Viciious was written for tinkering. It does a few things differently from other emulators, with the aim of facilitating playful exploration of the hardware and the software that ran on it. For example...
diff --git a/debug-line-number.js b/debug-line-number.js
new file mode 100644
index 0000000..a582402
--- /dev/null
+++ b/debug-line-number.js
@@ -0,0 +1,53 @@
+// Debug what we're actually writing vs what we expect
+
+const program = "10 PRINT \"HELLO\"";
+
+// Parse line
+const match = program.match(/^(\d+)\s+(.*)$/);
+const lineNum = parseInt(match[1], 10);
+const lineText = match[2];
+
+console.log('Line number:', lineNum);
+console.log('Line text:', lineText);
+
+// Line number in little-endian
+const loByte = lineNum & 0xFF;
+const hiByte = (lineNum >> 8) & 0xFF;
+
+console.log('Line number bytes:');
+console.log(' Low byte:', loByte, '(0x' + loByte.toString(16) + ')');
+console.log(' High byte:', hiByte, '(0x' + hiByte.toString(16) + ')');
+
+// If we write these backwards by mistake:
+const wrongNum = hiByte | (loByte << 8);
+console.log('If bytes are swapped:', wrongNum);
+
+// Test tokenization
+const TOKEN_PRINT = 0x99;
+console.log('\nExpected tokenization of PRINT "HELLO":');
+console.log('0x99 (PRINT token)');
+console.log('0x20 (space)');
+console.log('0x22 (quote)');
+console.log('0x48 0x45 0x4C 0x4C 0x4F (HELLO)');
+console.log('0x22 (quote)');
+console.log('0x00 (EOL)');
+
+// What if we're writing the pointer wrong?
+const addr = 0x0801;
+const lineLength = 2 + 2 + 9 + 1; // ptr + linenum + content + eol = 14
+const nextAddr = addr + lineLength; // 0x080f
+
+console.log('\nNext line pointer:');
+console.log('Next address: 0x' + nextAddr.toString(16));
+console.log('Low byte:', nextAddr & 0xFF, '(0x' + (nextAddr & 0xFF).toString(16) + ')');
+console.log('High byte:', (nextAddr >> 8) & 0xFF, '(0x' + ((nextAddr >> 8) & 0xFF).toString(16) + ')');
+
+// Test what 15420 looks like in hex
+console.log('\n15420 in hex: 0x' + (15420).toString(16));
+console.log('15420 low byte:', 15420 & 0xFF, '(0x' + (15420 & 0xFF).toString(16) + ')');
+console.log('15420 high byte:', (15420 >> 8) & 0xFF, '(0x' + ((15420 >> 8) & 0xFF).toString(16) + ')');
+
+// Reverse engineering: what bytes give us 15420?
+// 15420 = 0x3C3C
+console.log('\n0x3C3C = ', 0x3C3C, '(ASCII: "<<")');
+console.log('0x3C in ASCII:', String.fromCharCode(0x3C));
diff --git a/package-lock.json b/package-lock.json
index 4ed5248..fd50545 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -8,6 +8,10 @@
"name": "viciious",
"version": "0.1.0",
"license": "Public Domain",
+ "dependencies": {
+ "dotenv": "^17.2.3",
+ "express": "^5.1.0"
+ },
"devDependencies": {
"clean-webpack-plugin": "^4.0.0",
"css-loader": "^6.8.1",
@@ -701,47 +705,57 @@
}
},
"node_modules/body-parser": {
- "version": "1.20.1",
- "resolved": "https://registry.npmjs.org/body-parser/-/body-parser-1.20.1.tgz",
- "integrity": "sha512-jWi7abTbYwajOytWCQc37VulmWiRae5RyTpaCyDcS5/lMdtwSz5lOpDE67srw/HYe35f1z3fDQw+3txg7gNtWw==",
- "dev": true,
+ "version": "2.2.0",
+ "resolved": "https://registry.npmjs.org/body-parser/-/body-parser-2.2.0.tgz",
+ "integrity": "sha512-02qvAaxv8tp7fBa/mw1ga98OGm+eCbqzJOKoRt70sLmfEEi+jyBYVTDGfCL/k06/4EMk/z01gCe7HoCH/f2LTg==",
+ "license": "MIT",
"dependencies": {
- "bytes": "3.1.2",
- "content-type": "~1.0.4",
- "debug": "2.6.9",
- "depd": "2.0.0",
- "destroy": "1.2.0",
- "http-errors": "2.0.0",
- "iconv-lite": "0.4.24",
- "on-finished": "2.4.1",
- "qs": "6.11.0",
- "raw-body": "2.5.1",
- "type-is": "~1.6.18",
- "unpipe": "1.0.0"
+ "bytes": "^3.1.2",
+ "content-type": "^1.0.5",
+ "debug": "^4.4.0",
+ "http-errors": "^2.0.0",
+ "iconv-lite": "^0.6.3",
+ "on-finished": "^2.4.1",
+ "qs": "^6.14.0",
+ "raw-body": "^3.0.0",
+ "type-is": "^2.0.0"
},
"engines": {
- "node": ">= 0.8",
- "npm": "1.2.8000 || >= 1.4.16"
+ "node": ">=18"
}
},
"node_modules/body-parser/node_modules/bytes": {
"version": "3.1.2",
"resolved": "https://registry.npmjs.org/bytes/-/bytes-3.1.2.tgz",
"integrity": "sha512-/Nf7TyzTx6S3yRJObOAV7956r8cr2+Oj8AC5dt8wSP3BQAoeX58NoHyCU8P8zGkNXStjTSi6fzO6F0pBdcYbEg==",
- "dev": true,
+ "license": "MIT",
"engines": {
"node": ">= 0.8"
}
},
- "node_modules/body-parser/node_modules/depd": {
- "version": "2.0.0",
- "resolved": "https://registry.npmjs.org/depd/-/depd-2.0.0.tgz",
- "integrity": "sha512-g7nH6P6dyDioJogAAGprGpCtVImJhpPk/roCzdb3fIh61/s/nPsfR6onyMwkCAR/OlC3yBC0lESvUoQEAssIrw==",
- "dev": true,
+ "node_modules/body-parser/node_modules/debug": {
+ "version": "4.4.3",
+ "resolved": "https://registry.npmjs.org/debug/-/debug-4.4.3.tgz",
+ "integrity": "sha512-RGwwWnwQvkVfavKVt22FGLw+xYSdzARwm0ru6DhTVA3umU5hZc28V3kO4stgYryrTlLpuvgI9GiijltAjNbcqA==",
+ "license": "MIT",
+ "dependencies": {
+ "ms": "^2.1.3"
+ },
"engines": {
- "node": ">= 0.8"
+ "node": ">=6.0"
+ },
+ "peerDependenciesMeta": {
+ "supports-color": {
+ "optional": true
+ }
}
},
+ "node_modules/body-parser/node_modules/ms": {
+ "version": "2.1.3",
+ "resolved": "https://registry.npmjs.org/ms/-/ms-2.1.3.tgz",
+ "integrity": "sha512-6FlzubTLZG3J2a/NVCAleEhjzq5oxgHyaCU9yYXvcLsvoVaHJq/s5xXI6/XXP6tz7R9xAOtHnSO/tXtF3WRTlA==",
+ "license": "MIT"
+ },
"node_modules/bonjour-service": {
"version": "1.1.1",
"resolved": "https://registry.npmjs.org/bonjour-service/-/bonjour-service-1.1.1.tgz",
@@ -817,14 +831,30 @@
"node": ">= 0.8"
}
},
- "node_modules/call-bind": {
+ "node_modules/call-bind-apply-helpers": {
"version": "1.0.2",
- "resolved": "https://registry.npmjs.org/call-bind/-/call-bind-1.0.2.tgz",
- "integrity": "sha512-7O+FbCihrB5WGbFYesctwmTKae6rOiIzmz1icreWJ+0aA7LJfuqhEso2T9ncpcFtzMQtzXf2QGGueWJGTYsqrA==",
- "dev": true,
+ "resolved": "https://registry.npmjs.org/call-bind-apply-helpers/-/call-bind-apply-helpers-1.0.2.tgz",
+ "integrity": "sha512-Sp1ablJ0ivDkSzjcaJdxEunN5/XvksFJ2sMBFfq6x0ryhQV/2b/KwFe21cMpmHtPOSij8K99/wSfoEuTObmuMQ==",
+ "license": "MIT",
+ "dependencies": {
+ "es-errors": "^1.3.0",
+ "function-bind": "^1.1.2"
+ },
+ "engines": {
+ "node": ">= 0.4"
+ }
+ },
+ "node_modules/call-bound": {
+ "version": "1.0.4",
+ "resolved": "https://registry.npmjs.org/call-bound/-/call-bound-1.0.4.tgz",
+ "integrity": "sha512-+ys997U96po4Kx/ABpBCqhA9EuxJaQWDQg7295H4hBphv3IZg0boBKuwYpt4YXp6MZ5AmZQnU/tyMTlRpaSejg==",
+ "license": "MIT",
"dependencies": {
- "function-bind": "^1.1.1",
- "get-intrinsic": "^1.0.2"
+ "call-bind-apply-helpers": "^1.0.2",
+ "get-intrinsic": "^1.3.0"
+ },
+ "engines": {
+ "node": ">= 0.4"
},
"funding": {
"url": "https://github.com/sponsors/ljharb"
@@ -1058,10 +1088,10 @@
}
},
"node_modules/content-disposition": {
- "version": "0.5.4",
- "resolved": "https://registry.npmjs.org/content-disposition/-/content-disposition-0.5.4.tgz",
- "integrity": "sha512-FveZTNuGw04cxlAiWbzi6zTAL/lhehaWbTtgluJh4/E95DqMwTmha3KZN1aAWA8cFIhHzMZUvLevkw5Rqk+tSQ==",
- "dev": true,
+ "version": "1.0.0",
+ "resolved": "https://registry.npmjs.org/content-disposition/-/content-disposition-1.0.0.tgz",
+ "integrity": "sha512-Au9nRL8VNUut/XSzbQA38+M78dzP4D+eqg3gfJHMIHHYa3bg067xj1KxMUWj+VULbiZMowKngFFbKczUrNJ1mg==",
+ "license": "MIT",
"dependencies": {
"safe-buffer": "5.2.1"
},
@@ -1073,25 +1103,28 @@
"version": "1.0.5",
"resolved": "https://registry.npmjs.org/content-type/-/content-type-1.0.5.tgz",
"integrity": "sha512-nTjqfcBFEipKdXCv4YDQWCfmcLZKm81ldF0pAopTvyrFGVbcR6P/VAAd5G7N+0tTr8QqiU0tFadD6FK4NtJwOA==",
- "dev": true,
+ "license": "MIT",
"engines": {
"node": ">= 0.6"
}
},
"node_modules/cookie": {
- "version": "0.5.0",
- "resolved": "https://registry.npmjs.org/cookie/-/cookie-0.5.0.tgz",
- "integrity": "sha512-YZ3GUyn/o8gfKJlnlX7g7xq4gyO6OSuhGPKaaGssGB2qgDUS0gPgtTvoyZLTt9Ab6dC4hfc9dV5arkvc/OCmrw==",
- "dev": true,
+ "version": "0.7.2",
+ "resolved": "https://registry.npmjs.org/cookie/-/cookie-0.7.2.tgz",
+ "integrity": "sha512-yki5XnKuf750l50uGTllt6kKILY4nQ1eNIQatoXEByZ5dWgnKqbnqmTrBE5B4N7lrMJKQ2ytWMiTO2o0v6Ew/w==",
+ "license": "MIT",
"engines": {
"node": ">= 0.6"
}
},
"node_modules/cookie-signature": {
- "version": "1.0.6",
- "resolved": "https://registry.npmjs.org/cookie-signature/-/cookie-signature-1.0.6.tgz",
- "integrity": "sha1-4wOogrNCzD7oylE6eZmXNNqzriw=",
- "dev": true
+ "version": "1.2.2",
+ "resolved": "https://registry.npmjs.org/cookie-signature/-/cookie-signature-1.2.2.tgz",
+ "integrity": "sha512-D76uU73ulSXrD1UXF4KE2TMxVVwhsnCgfAyTg9k8P6KGZjlXKrOLe4dJQKI3Bxi5wjesZoFXJWElNWBjPZMbhg==",
+ "license": "MIT",
+ "engines": {
+ "node": ">=6.6.0"
+ }
},
"node_modules/core-util-is": {
"version": "1.0.2",
@@ -1241,6 +1274,7 @@
"resolved": "https://registry.npmjs.org/destroy/-/destroy-1.2.0.tgz",
"integrity": "sha512-2sJGJTaXIIaR1w4iJSNoN0hnMY7Gpc/n8D4qSCJw8QqFWXf7cuAgnEHxBpweaVcPevC2l3KpjYCx3NypQQgaJg==",
"dev": true,
+ "license": "MIT",
"engines": {
"node": ">= 0.8",
"npm": "1.2.8000 || >= 1.4.16"
@@ -1350,11 +1384,37 @@
"integrity": "sha512-AEYxH93jGFPn/a2iVAwW87VuUIkR1FVUKB77NwMF7nBTDkDrrT/Hpt/IrCJ0QXhW27jTBDcf5ZY7w6RiqTMw2Q==",
"dev": true
},
+ "node_modules/dotenv": {
+ "version": "17.2.3",
+ "resolved": "https://registry.npmjs.org/dotenv/-/dotenv-17.2.3.tgz",
+ "integrity": "sha512-JVUnt+DUIzu87TABbhPmNfVdBDt18BLOWjMUFJMSi/Qqg7NTYtabbvSNJGOJ7afbRuv9D/lngizHtP7QyLQ+9w==",
+ "license": "BSD-2-Clause",
+ "engines": {
+ "node": ">=12"
+ },
+ "funding": {
+ "url": "https://dotenvx.com"
+ }
+ },
+ "node_modules/dunder-proto": {
+ "version": "1.0.1",
+ "resolved": "https://registry.npmjs.org/dunder-proto/-/dunder-proto-1.0.1.tgz",
+ "integrity": "sha512-KIN/nDJBQRcXw0MLVhZE9iQHmG68qAVIBg9CqmUYjmQIhgij9U5MFvrqkUL5FbtyyzZuOeOt0zdeRe4UY7ct+A==",
+ "license": "MIT",
+ "dependencies": {
+ "call-bind-apply-helpers": "^1.0.1",
+ "es-errors": "^1.3.0",
+ "gopd": "^1.2.0"
+ },
+ "engines": {
+ "node": ">= 0.4"
+ }
+ },
"node_modules/ee-first": {
"version": "1.1.1",
"resolved": "https://registry.npmjs.org/ee-first/-/ee-first-1.1.1.tgz",
"integrity": "sha512-WMwm9LhRUo+WUaRN+vRuETqG89IgZphVSNkdFgeb6sS/E4OrDIN7t48CAewSHXc6C8lefD8KKfr5vY61brQlow==",
- "dev": true
+ "license": "MIT"
},
"node_modules/electron-to-chromium": {
"version": "1.4.556",
@@ -1372,10 +1432,10 @@
}
},
"node_modules/encodeurl": {
- "version": "1.0.2",
- "resolved": "https://registry.npmjs.org/encodeurl/-/encodeurl-1.0.2.tgz",
- "integrity": "sha512-TPJXq8JqFaVYm2CWmPvnP2Iyo4ZSM7/QKcSmuMLDObfpH5fi7RUGmd/rTDf+rut/saiDiQEeVTNgAmJEdAOx0w==",
- "dev": true,
+ "version": "2.0.0",
+ "resolved": "https://registry.npmjs.org/encodeurl/-/encodeurl-2.0.0.tgz",
+ "integrity": "sha512-Q0n9HRi4m6JuGIV1eFlmvJB7ZEVxu93IrMyiMsGC0lrMJMWzRgx6WGquyfQgZVb31vhGgXnfmPNNXmxnOkRBrg==",
+ "license": "MIT",
"engines": {
"node": ">= 0.8"
}
@@ -1401,12 +1461,42 @@
"node": ">=4"
}
},
+ "node_modules/es-define-property": {
+ "version": "1.0.1",
+ "resolved": "https://registry.npmjs.org/es-define-property/-/es-define-property-1.0.1.tgz",
+ "integrity": "sha512-e3nRfgfUZ4rNGL232gUgX06QNyyez04KdjFrF+LTRoOXmrOgFKDg4BCdsjW8EnT69eqdYGmRpJwiPVYNrCaW3g==",
+ "license": "MIT",
+ "engines": {
+ "node": ">= 0.4"
+ }
+ },
+ "node_modules/es-errors": {
+ "version": "1.3.0",
+ "resolved": "https://registry.npmjs.org/es-errors/-/es-errors-1.3.0.tgz",
+ "integrity": "sha512-Zf5H2Kxt2xjTvbJvP2ZWLEICxA6j+hAmMzIlypy4xcBg1vKVnx89Wy0GbS+kf5cwCVFFzdCFh2XSCFNULS6csw==",
+ "license": "MIT",
+ "engines": {
+ "node": ">= 0.4"
+ }
+ },
"node_modules/es-module-lexer": {
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+ "license": "MIT",
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+ "license": "MIT",
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"dev": true,
+ "license": "MIT",
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"mime": "cli.js"
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+ "license": "MIT",
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- "dev": true,
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+ "license": "MIT",
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+ "license": "MIT",
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+ "version": "2.0.1",
+ "resolved": "https://registry.npmjs.org/statuses/-/statuses-2.0.1.tgz",
+ "integrity": "sha512-RwNA9Z/7PrK06rYLIzFMlaF+l73iwpzsqRIFgbMLbTcLD6cOao82TaWefPXQvB2fOC4AjuYSEndS7N/mTCbkdQ==",
+ "dev": true,
+ "license": "MIT",
+ "engines": {
+ "node": ">= 0.8"
+ }
+ },
+ "node_modules/webpack-dev-server/node_modules/type-is": {
+ "version": "1.6.18",
+ "resolved": "https://registry.npmjs.org/type-is/-/type-is-1.6.18.tgz",
+ "integrity": "sha512-TkRKr9sUTxEH8MdfuCSP7VizJyzRNMjj2J2do2Jr3Kym598JVdEksuzPQCnlFPW4ky9Q+iA+ma9BGm06XQBy8g==",
+ "dev": true,
+ "license": "MIT",
+ "dependencies": {
+ "media-typer": "0.3.0",
+ "mime-types": "~2.1.24"
+ },
+ "engines": {
+ "node": ">= 0.6"
+ }
+ },
"node_modules/webpack-merge": {
"version": "5.10.0",
"resolved": "https://registry.npmjs.org/webpack-merge/-/webpack-merge-5.10.0.tgz",
@@ -4475,8 +5178,7 @@
"node_modules/wrappy": {
"version": "1.0.2",
"resolved": "https://registry.npmjs.org/wrappy/-/wrappy-1.0.2.tgz",
- "integrity": "sha1-tSQ9jz7BqjXxNkYFvA0QNuMKtp8=",
- "dev": true
+ "integrity": "sha1-tSQ9jz7BqjXxNkYFvA0QNuMKtp8="
},
"node_modules/ws": {
"version": "8.14.2",
diff --git a/package.json b/package.json
index fd067d3..77eb3ed 100644
--- a/package.json
+++ b/package.json
@@ -24,5 +24,9 @@
"webpack": "^5.0.0",
"webpack-cli": "^5.1.4",
"webpack-dev-server": "^4.15.1"
+ },
+ "dependencies": {
+ "dotenv": "^17.2.3",
+ "express": "^5.1.0"
}
}
diff --git a/src/host/aiChatServer.js b/src/host/aiChatServer.js
new file mode 100644
index 0000000..a4887b3
--- /dev/null
+++ b/src/host/aiChatServer.js
@@ -0,0 +1,315 @@
+// AI Chat API Server
+// This server handles AI chat requests and code modifications for C64 BASIC programs
+
+const express = require('express');
+const path = require('path');
+const fs = require('fs').promises;
+require('dotenv').config();
+
+const app = express();
+app.use(express.json({ limit: '50mb' })); // Increase limit for RAM dumps
+
+// OpenAI API configuration
+const OPENAI_API_KEY = process.env.OPENAI_API_KEY;
+const OPENAI_API_URL = 'https://api.openai.com/v1/chat/completions';
+
+// Read the entire codebase for context
+async function getCodebaseContext() {
+ const projectRoot = path.resolve(__dirname, '..');
+ const context = [];
+
+ async function readDirectory(dir, basePath = '') {
+ try {
+ const entries = await fs.readdir(dir, { withFileTypes: true });
+
+ for (const entry of entries) {
+ const fullPath = path.join(dir, entry.name);
+ const relativePath = path.join(basePath, entry.name);
+
+ // Skip node_modules, dist, etc.
+ if (entry.name === 'node_modules' || entry.name === 'dist' || entry.name === '.git') {
+ continue;
+ }
+
+ if (entry.isDirectory()) {
+ await readDirectory(fullPath, relativePath);
+ } else if (entry.isFile() && (entry.name.endsWith('.js') || entry.name.endsWith('.md') || entry.name === 'package.json')) {
+ try {
+ const content = await fs.readFile(fullPath, 'utf-8');
+ context.push({
+ path: relativePath,
+ content: content,
+ });
+ } catch (err) {
+ console.error(`Error reading ${fullPath}:`, err.message);
+ }
+ }
+ }
+ } catch (err) {
+ console.error(`Error reading directory ${dir}:`, err.message);
+ }
+ }
+
+ await readDirectory(projectRoot);
+ return context;
+}
+
+// Get a summary of the codebase instead of full content
+async function getCodebaseSummary() {
+ const projectRoot = path.resolve(__dirname, '..');
+ const summary = {
+ files: [],
+ structure: {},
+ };
+
+ async function readDirectory(dir, basePath = '') {
+ try {
+ const entries = await fs.readdir(dir, { withFileTypes: true });
+
+ for (const entry of entries) {
+ const fullPath = path.join(dir, entry.name);
+ const relativePath = path.join(basePath, entry.name);
+
+ // Skip node_modules, dist, etc.
+ if (entry.name === 'node_modules' || entry.name === 'dist' || entry.name === '.git') {
+ continue;
+ }
+
+ if (entry.isDirectory()) {
+ await readDirectory(fullPath, relativePath);
+ } else if (entry.isFile() && (entry.name.endsWith('.js') || entry.name.endsWith('.md'))) {
+ try {
+ const content = await fs.readFile(fullPath, 'utf-8');
+ const lines = content.split('\n');
+
+ // Extract just the first comment block or first 10 lines as summary
+ const summary_lines = lines.slice(0, Math.min(20, lines.length));
+
+ summary.files.push({
+ path: relativePath,
+ lines: lines.length,
+ summary: summary_lines.join('\n'),
+ });
+ } catch (err) {
+ console.error(`Error reading ${fullPath}:`, err.message);
+ }
+ }
+ }
+ } catch (err) {
+ console.error(`Error reading directory ${dir}:`, err.message);
+ }
+ }
+
+ await readDirectory(projectRoot);
+ return summary;
+}
+
+// AI Chat endpoint
+app.post('/api/ai-chat', async (req, res) => {
+ const { message, history, basicProgram } = req.body;
+
+ if (!OPENAI_API_KEY) {
+ return res.status(500).json({
+ error: 'OpenAI API key not configured. Please set OPENAI_API_KEY in .env file'
+ });
+ }
+
+ try {
+ // Build system message with C64 BASIC context
+ const systemMessage = `You are an AI assistant helping to write and modify Commodore 64 BASIC programs.
+
+${basicProgram ? `Current BASIC program in the C64:\n\`\`\`basic\n${basicProgram}\n\`\`\`` : 'No BASIC program is currently loaded in the C64.'}
+
+When the user asks you to modify or create a BASIC program:
+1. Analyze the current program (if any)
+2. Understand what the user wants to change or add
+3. Provide a brief explanation of what you're doing
+4. IMMEDIATELY provide the complete program in the JSON format below
+
+IMPORTANT: Always provide the program code directly. Do NOT ask the user for confirmation or additional input. The user will confirm via a UI button.
+
+To propose changes to the BASIC program, you MUST include a JSON block in your response:
+\`\`\`json
+{
+ "codeChange": {
+ "type": "basic",
+ "description": "Brief description of the change",
+ "newProgram": "10 PRINT\\"HELLO WORLD\\"\\n20 GOTO 10"
+ }
+}
+\`\`\`
+
+The newProgram should be the complete BASIC program, with each line separated by \\n.
+Line numbers should be included.
+Use \\" for quotes inside strings.
+
+CRITICAL: Each BASIC statement must have its own line number. Do NOT use colons (:) to put multiple statements on one line.
+For example:
+GOOD:
+10 PRINT "HELLO"
+20 GOTO 10
+
+BAD:
+10 PRINT "HELLO" : GOTO 10
+
+You can help with:
+- Writing new BASIC programs
+- Debugging existing programs
+- Adding features or fixing bugs
+- Explaining how C64 BASIC works
+- Converting ideas into BASIC code
+
+C64 BASIC notes:
+- Screen is 40x25 characters
+- Colors: 0-15 (0=black, 1=white, 2=red, 3=cyan, etc.)
+- Use POKE 53280,X for border color
+- Use POKE 53281,X for background color
+- Use PRINT CHR$(147) to clear screen
+- Variables are limited (26 simple variables A-Z, arrays with DIM)
+
+Remember: Provide the code immediately, don't ask for confirmation!`;
+
+ // Build messages array
+ const messages = [
+ { role: 'system', content: systemMessage },
+ ...history.slice(-10), // Keep last 10 messages for context
+ { role: 'user', content: message },
+ ];
+
+ // Call OpenAI API
+ const response = await fetch(OPENAI_API_URL, {
+ method: 'POST',
+ headers: {
+ 'Content-Type': 'application/json',
+ 'Authorization': `Bearer ${OPENAI_API_KEY}`,
+ },
+ body: JSON.stringify({
+ model: 'gpt-4',
+ messages: messages,
+ temperature: 0.7,
+ max_tokens: 2000,
+ }),
+ });
+
+ if (!response.ok) {
+ const errorData = await response.json();
+ throw new Error(errorData.error?.message || `OpenAI API error: ${response.status}`);
+ }
+
+ const data = await response.json();
+ const aiResponse = data.choices[0].message.content;
+
+ // Check if AI wants to make a code change
+ let codeChange = null;
+ const jsonMatch = aiResponse.match(/```json\n([\s\S]*?)\n```/);
+ if (jsonMatch) {
+ try {
+ const parsed = JSON.parse(jsonMatch[1]);
+ if (parsed.codeChange) {
+ codeChange = parsed.codeChange;
+ }
+ } catch (err) {
+ console.error('Error parsing code change JSON:', err);
+ }
+ }
+
+ res.json({
+ response: aiResponse,
+ codeChange: codeChange,
+ });
+
+ } catch (error) {
+ console.error('AI Chat error:', error);
+ res.status(500).json({
+ error: error.message || 'Failed to communicate with OpenAI'
+ });
+ }
+});
+
+// Get specific file content endpoint
+app.post('/api/get-file-content', async (req, res) => {
+ const { filePath } = req.body;
+
+ if (!filePath) {
+ return res.status(400).json({
+ error: 'Missing required field: filePath'
+ });
+ }
+
+ try {
+ const fullPath = path.resolve(__dirname, '..', filePath);
+
+ // Security check: ensure the path is within the project
+ const projectRoot = path.resolve(__dirname, '..');
+ if (!fullPath.startsWith(projectRoot)) {
+ return res.status(403).json({
+ error: 'Access denied: path outside project directory'
+ });
+ }
+
+ const content = await fs.readFile(fullPath, 'utf-8');
+ res.json({
+ success: true,
+ content: content,
+ filePath: filePath,
+ });
+
+ } catch (error) {
+ console.error('Get file content error:', error);
+ res.status(500).json({
+ error: error.message || 'Failed to read file'
+ });
+ }
+});
+
+// Apply code change endpoint
+app.post('/api/apply-code-change', async (req, res) => {
+ const { filePath, oldCode, newCode } = req.body;
+
+ if (!filePath || !newCode) {
+ return res.status(400).json({
+ error: 'Missing required fields: filePath and newCode'
+ });
+ }
+
+ try {
+ const fullPath = path.resolve(__dirname, '..', filePath);
+
+ // Read current file content
+ let currentContent;
+ try {
+ currentContent = await fs.readFile(fullPath, 'utf-8');
+ } catch (err) {
+ // File doesn't exist, create new file
+ if (err.code === 'ENOENT') {
+ await fs.writeFile(fullPath, newCode, 'utf-8');
+ return res.json({ success: true, message: 'New file created' });
+ }
+ throw err;
+ }
+
+ // If oldCode is provided, replace it
+ if (oldCode) {
+ if (!currentContent.includes(oldCode)) {
+ return res.status(400).json({
+ error: 'Old code not found in file. The file may have been modified.'
+ });
+ }
+ const updatedContent = currentContent.replace(oldCode, newCode);
+ await fs.writeFile(fullPath, updatedContent, 'utf-8');
+ } else {
+ // Otherwise, append or overwrite
+ await fs.writeFile(fullPath, newCode, 'utf-8');
+ }
+
+ res.json({ success: true, message: 'Code change applied successfully' });
+
+ } catch (error) {
+ console.error('Apply code change error:', error);
+ res.status(500).json({
+ error: error.message || 'Failed to apply code change'
+ });
+ }
+});
+
+module.exports = app;
diff --git a/src/host/keyboard-KeyboardEvent.js b/src/host/keyboard-KeyboardEvent.js
index ed7333d..07d2981 100644
--- a/src/host/keyboard-KeyboardEvent.js
+++ b/src/host/keyboard-KeyboardEvent.js
@@ -110,6 +110,12 @@ function buttonNamesToKeyMatrix(buttonNames) {
function onKeyDown(event) {
+ // Ignore keyboard events when typing in input fields or textareas
+ const target = event.target;
+ if (target && (target.tagName === 'INPUT' || target.tagName === 'TEXTAREA')) {
+ return;
+ }
+
// Any keypress with the Meta key (cmd/ctrl/...) down isn't for us.
if (event.metaKey) return;
@@ -152,6 +158,12 @@ function onKeyDown(event) {
}
function onKeyUp(event) {
+ // Ignore keyboard events when typing in input fields or textareas
+ const target = event.target;
+ if (target && (target.tagName === 'INPUT' || target.tagName === 'TEXTAREA')) {
+ return;
+ }
+
const buttonNames = getEventToButtonNames()(event);
if (!buttonNames) return;
diff --git a/src/host/webFrontEnd/aiChatDialog.css b/src/host/webFrontEnd/aiChatDialog.css
new file mode 100644
index 0000000..6695df7
--- /dev/null
+++ b/src/host/webFrontEnd/aiChatDialog.css
@@ -0,0 +1,228 @@
+#aiChatDialog {
+ max-width: 800px;
+ max-height: 80vh;
+ display: flex;
+ flex-direction: column;
+}
+
+#aiChatDialog h1 {
+ margin-top: 0;
+ margin-bottom: 20px;
+ font-size: 24px;
+}
+
+.aiChat-container {
+ display: flex;
+ flex-direction: column;
+ height: 100%;
+ flex-grow: 1;
+ min-height: 0;
+}
+
+.aiChat-messages {
+ flex-grow: 1;
+ overflow-y: auto;
+ border: 1px solid #666;
+ background-color: #2a2a2a;
+ border-radius: 8px;
+ padding: 15px;
+ margin-bottom: 15px;
+ max-height: 400px;
+ min-height: 200px;
+}
+
+.aiChat-message {
+ margin-bottom: 15px;
+ padding: 12px;
+ border-radius: 6px;
+ line-height: 1.6;
+ width: 100%;
+ box-sizing: border-box;
+}
+
+.aiChat-message.user {
+ background-color: #4a6fa5;
+ text-align: right;
+}
+
+.aiChat-message.assistant {
+ background-color: #3a3a3a;
+ text-align: left;
+}
+
+.aiChat-message.system {
+ background-color: #5a5a2a;
+ font-style: italic;
+ text-align: center;
+}
+
+.aiChat-message-role {
+ font-weight: bold;
+ margin-bottom: 5px;
+ font-size: 12px;
+ opacity: 0.9;
+ color: #ddd;
+}
+
+.aiChat-message-content {
+ white-space: pre-wrap;
+ word-wrap: break-word;
+ color: #eee;
+}
+
+.aiChat-codeBlock {
+ background-color: #1a1a1a;
+ border: 1px solid #555;
+ border-radius: 4px;
+ padding: 10px;
+ margin: 10px 0;
+ overflow-x: auto;
+ font-family: monospace;
+ font-size: 12px;
+ line-height: 1.4;
+ color: #0f0;
+}
+
+.aiChat-inputArea {
+ display: flex;
+ flex-direction: column;
+ gap: 10px;
+ margin-bottom: 15px;
+}
+
+.aiChat-buttons {
+ display: flex;
+ gap: 10px;
+}
+
+.aiChat-input {
+ flex-grow: 1;
+ padding: 10px;
+ background-color: #3a3a3a;
+ color: #eee;
+ border: 1px solid #666;
+ border-radius: 6px;
+ font-family: inherit;
+ font-size: 14px;
+ resize: vertical;
+ min-height: 60px;
+}
+
+.aiChat-input:focus {
+ outline: none;
+ border-color: #7ab4e8;
+ background-color: #404040;
+}
+
+.aiChat-exportButton {
+ padding: 10px 20px;
+ background-color: #5a8f5a;
+ color: white;
+ border: none;
+ border-radius: 6px;
+ cursor: pointer;
+ font-weight: bold;
+}
+
+.aiChat-exportButton:hover {
+ background-color: #6aa56a;
+}
+
+.aiChat-importButton {
+ padding: 10px 20px;
+ background-color: #8f7a5a;
+ color: white;
+ border: none;
+ border-radius: 6px;
+ cursor: pointer;
+ font-weight: bold;
+}
+
+.aiChat-importButton:hover {
+ background-color: #a58a6a;
+}
+
+.aiChat-sendButton {
+ padding: 10px 20px;
+ background-color: #5a9fd4;
+ color: white;
+ border: none;
+ border-radius: 6px;
+ cursor: pointer;
+ font-weight: bold;
+ flex-grow: 1;
+}
+
+.aiChat-sendButton:hover {
+ background-color: #4a8fc4;
+}
+
+.aiChat-sendButton:disabled {
+ background-color: #444;
+ cursor: not-allowed;
+ opacity: 0.5;
+}
+
+.aiChat-confirmationArea {
+ background-color: #4a3a2a;
+ border: 1px solid #cc8a3a;
+ border-radius: 6px;
+ padding: 15px;
+ margin-bottom: 15px;
+}
+
+.aiChat-confirmationArea h3 {
+ margin-top: 0;
+ margin-bottom: 10px;
+ color: #ffd;
+}
+
+.aiChat-confirmationButtons {
+ display: flex;
+ gap: 10px;
+ margin-top: 15px;
+}
+
+.aiChat-confirmButton,
+.aiChat-rejectButton {
+ padding: 8px 16px;
+ border: none;
+ border-radius: 6px;
+ cursor: pointer;
+ font-weight: bold;
+ font-size: 14px;
+}
+
+.aiChat-confirmButton {
+ background-color: #5aaa5a;
+ color: white;
+}
+
+.aiChat-confirmButton:hover {
+ background-color: #4a9a4a;
+}
+
+.aiChat-rejectButton {
+ background-color: #ca5a5a;
+ color: white;
+}
+
+.aiChat-rejectButton:hover {
+ background-color: #ba4a4a;
+}
+
+.aiChat-loading {
+ text-align: center;
+ padding: 10px;
+ opacity: 0.8;
+ color: #bbb;
+}
+
+.aiChat-error {
+ background-color: #6a3a3a;
+ border: 1px solid #ca6a6a;
+ border-radius: 6px;
+ padding: 10px;
+ margin-bottom: 15px;
+ color: #fcc;
+}
diff --git a/src/host/webFrontEnd/aiChatDialog.js b/src/host/webFrontEnd/aiChatDialog.js
new file mode 100644
index 0000000..707d9d9
--- /dev/null
+++ b/src/host/webFrontEnd/aiChatDialog.js
@@ -0,0 +1,493 @@
+import { Dialog, closeAllDialogs } from "./dialogs";
+import css from "./aiChatDialog.css";
+import { extractBasicProgram, basicLinesToText } from "../../tools/basicExtractor";
+import { writeBasicProgramToRam } from "../../tools/basicTokenizer";
+import { buildPrgFromBasic, downloadPrg, buildT64FromPrg, downloadT64 } from "./exportPrg";
+
+let c64;
+let dialog;
+let messagesContainer;
+let inputTextarea;
+let sendButton;
+let confirmationArea;
+let errorContainer;
+
+const conversationHistory = [];
+let pendingCodeChange = null;
+let isWaitingForResponse = false;
+
+// Helper function to fetch file content
+async function fetchFileContent(filePath) {
+ try {
+ const response = await fetch("/api/get-file-content", {
+ method: "POST",
+ headers: {
+ "Content-Type": "application/json",
+ },
+ body: JSON.stringify({ filePath }),
+ });
+
+ const data = await response.json();
+
+ if (data.success) {
+ return data.content;
+ } else {
+ throw new Error(data.error || "Failed to fetch file content");
+ }
+ } catch (error) {
+ console.error("Error fetching file content:", error);
+ return null;
+ }
+}
+
+export function initAiChatDialog(nascentC64) {
+ c64 = nascentC64;
+ dialog = new Dialog("aiChatDialog");
+
+ messagesContainer = document.getElementById("aiChat-messages");
+ inputTextarea = document.getElementById("aiChat-input");
+ sendButton = document.getElementById("aiChat-sendButton");
+ confirmationArea = document.getElementById("aiChat-confirmationArea");
+ errorContainer = document.getElementById("aiChat-error");
+
+ sendButton.addEventListener("click", handleSendMessage);
+ inputTextarea.addEventListener("keydown", (e) => {
+ if (e.key === "Enter" && !e.shiftKey) {
+ e.preventDefault();
+ handleSendMessage();
+ }
+ });
+
+ document.getElementById("aiChat-confirmButton")?.addEventListener("click", handleConfirmChange);
+ document.getElementById("aiChat-rejectButton")?.addEventListener("click", handleRejectChange);
+ document.getElementById("aiChat-exportButton")?.addEventListener("click", handleExportCode);
+ document.getElementById("aiChat-exportPrgButton")?.addEventListener("click", handleExportPrg);
+ document.getElementById("aiChat-exportT64Button")?.addEventListener("click", handleExportT64);
+ document.getElementById("aiChat-importButton")?.addEventListener("click", handleImportCode);
+
+ // Handle file input change
+ const fileInput = document.getElementById("aiChat-importInput");
+ if (fileInput) {
+ fileInput.addEventListener("change", handleFileSelected);
+ }
+
+ // Make dialog draggable
+ makeDraggable(dialog.el);
+}
+
+export function openAiChatDialog() {
+ // Reset position before opening
+ if (dialog.el) {
+ dialog.el.style.transition = "";
+ dialog.el.style.transform = "";
+ }
+ dialog.open();
+ inputTextarea.focus();
+}
+
+function addMessage(role, content) {
+ conversationHistory.push({ role, content });
+
+ const messageEl = document.createElement("div");
+ messageEl.className = `aiChat-message ${role}`;
+
+ const roleEl = document.createElement("div");
+ roleEl.className = "aiChat-message-role";
+ roleEl.textContent = role === "user" ? "You" : role === "assistant" ? "AI" : "System";
+
+ const contentEl = document.createElement("div");
+ contentEl.className = "aiChat-message-content";
+
+ // Simple markdown-like formatting for code blocks
+ const parts = content.split(/```(\w*)\n([\s\S]*?)```/g);
+ for (let i = 0; i < parts.length; i++) {
+ if (i % 3 === 0) {
+ // Regular text
+ if (parts[i].trim()) {
+ const textNode = document.createTextNode(parts[i]);
+ contentEl.appendChild(textNode);
+ }
+ } else if (i % 3 === 2) {
+ // Code block
+ const codeBlock = document.createElement("div");
+ codeBlock.className = "aiChat-codeBlock";
+ codeBlock.textContent = parts[i];
+ contentEl.appendChild(codeBlock);
+ }
+ }
+
+ messageEl.appendChild(roleEl);
+ messageEl.appendChild(contentEl);
+ messagesContainer.appendChild(messageEl);
+ messagesContainer.scrollTop = messagesContainer.scrollHeight;
+}
+
+function showError(message) {
+ errorContainer.textContent = message;
+ errorContainer.style.display = "block";
+ setTimeout(() => {
+ errorContainer.style.display = "none";
+ }, 5000);
+}
+
+async function handleSendMessage() {
+ if (isWaitingForResponse) return;
+
+ const message = inputTextarea.value.trim();
+ if (!message) return;
+
+ inputTextarea.value = "";
+ addMessage("user", message);
+
+ isWaitingForResponse = true;
+ sendButton.disabled = true;
+
+ // Extract current BASIC program from C64 RAM
+ let basicProgram = "";
+ try {
+ const lines = extractBasicProgram(c64);
+ basicProgram = basicLinesToText(lines);
+ } catch (error) {
+ console.error("Error extracting BASIC program:", error);
+ basicProgram = "";
+ }
+
+ // Show loading indicator
+ const loadingEl = document.createElement("div");
+ loadingEl.className = "aiChat-loading";
+ loadingEl.textContent = "AI is thinking...";
+ messagesContainer.appendChild(loadingEl);
+
+ try {
+ const response = await fetch("/api/ai-chat", {
+ method: "POST",
+ headers: {
+ "Content-Type": "application/json",
+ },
+ body: JSON.stringify({
+ message,
+ history: conversationHistory,
+ basicProgram: basicProgram,
+ }),
+ });
+
+ // Safely remove loading indicator
+ if (loadingEl.parentNode === messagesContainer) {
+ messagesContainer.removeChild(loadingEl);
+ }
+
+ if (!response.ok) {
+ throw new Error(`HTTP error! status: ${response.status}`);
+ }
+
+ const data = await response.json();
+
+ if (data.error) {
+ showError(data.error);
+ addMessage("system", `Error: ${data.error}`);
+ } else {
+ addMessage("assistant", data.response);
+
+ // Check if AI wants to modify code
+ if (data.codeChange) {
+ pendingCodeChange = data.codeChange;
+ showConfirmationDialog(data.codeChange);
+ }
+ }
+ } catch (error) {
+ // Safely remove loading indicator
+ if (loadingEl.parentNode === messagesContainer) {
+ messagesContainer.removeChild(loadingEl);
+ }
+ showError(`Failed to communicate with AI: ${error.message}`);
+ addMessage("system", `Error: ${error.message}`);
+ } finally {
+ isWaitingForResponse = false;
+ sendButton.disabled = false;
+ inputTextarea.focus();
+ }
+}
+
+function showConfirmationDialog(codeChange) {
+ const { type, description, newProgram } = codeChange;
+
+ const descEl = document.getElementById("aiChat-changeDescription");
+ descEl.textContent = description || "Modify BASIC program";
+
+ const detailsEl = document.getElementById("aiChat-changeDetails");
+
+ if (type === "basic") {
+ detailsEl.innerHTML = `
+ New BASIC Program:
+ ${escapeHtml(newProgram)}
+ `;
+ } else {
+ // Legacy file system change (shouldn't happen now)
+ const { filePath, oldCode, newCode } = codeChange;
+ detailsEl.innerHTML = `
+ File: ${filePath}
+ Changes:
+ ${oldCode ? `${escapeHtml(oldCode)}
` : ''}
+ ↓
+ ${escapeHtml(newCode)}
+ `;
+ }
+
+ confirmationArea.style.display = "block";
+}
+
+function escapeHtml(text) {
+ const div = document.createElement("div");
+ div.textContent = text;
+ return div.innerHTML;
+}
+
+async function handleConfirmChange() {
+ if (!pendingCodeChange) return;
+
+ confirmationArea.style.display = "none";
+
+ if (pendingCodeChange.type === "basic") {
+ // Apply BASIC program change directly to C64 RAM
+ try {
+ const { newProgram } = pendingCodeChange;
+
+ // Write the program directly to RAM using tokenizer
+ writeBasicProgramToRam(c64, newProgram);
+
+ addMessage("system", "BASIC program loaded into memory - type LIST to see it");
+ } catch (error) {
+ showError(`Failed to apply BASIC program: ${error.message}`);
+ addMessage("system", `Error applying program: ${error.message}`);
+ }
+ } else {
+ // Legacy file system change (shouldn't be used anymore)
+ try {
+ const response = await fetch("/api/apply-code-change", {
+ method: "POST",
+ headers: {
+ "Content-Type": "application/json",
+ },
+ body: JSON.stringify(pendingCodeChange),
+ });
+
+ const data = await response.json();
+
+ if (data.success) {
+ addMessage("system", `Code change applied successfully`);
+ } else {
+ showError(data.error || "Failed to apply code change");
+ addMessage("system", `Failed to apply change: ${data.error}`);
+ }
+ } catch (error) {
+ showError(`Failed to apply code change: ${error.message}`);
+ addMessage("system", `Error applying change: ${error.message}`);
+ }
+ }
+
+ pendingCodeChange = null;
+}
+
+function handleRejectChange() {
+ confirmationArea.style.display = "none";
+ addMessage("system", "Code change rejected by user");
+ pendingCodeChange = null;
+}
+
+function handleExportCode() {
+ try {
+ // Extract current BASIC program from C64 RAM
+ const lines = extractBasicProgram(c64);
+ const basicProgram = basicLinesToText(lines);
+
+ if (!basicProgram || basicProgram.trim() === "") {
+ showError("No BASIC program to export");
+ return;
+ }
+
+ // Create a blob with the BASIC program
+ const blob = new Blob([basicProgram], { type: "text/plain;charset=utf-8" });
+
+ // Create a temporary download link
+ const url = URL.createObjectURL(blob);
+ const link = document.createElement("a");
+ link.href = url;
+
+ // Generate filename with timestamp
+ const timestamp = new Date().toISOString().replace(/[:.]/g, "-").slice(0, -5);
+ link.download = `c64-basic-${timestamp}.txt`;
+
+ // Trigger download
+ document.body.appendChild(link);
+ link.click();
+
+ // Cleanup
+ document.body.removeChild(link);
+ URL.revokeObjectURL(url);
+
+ addMessage("system", `BASIC program exported to ${link.download}`);
+ } catch (error) {
+ console.error("Error exporting BASIC program:", error);
+ showError(`Failed to export code: ${error.message}`);
+ }
+}
+
+function handleExportPrg() {
+ try {
+ const prg = buildPrgFromBasic(c64);
+ downloadPrg(prg, `viciious-program-${new Date().toISOString().replace(/[:.]/g,'-')}.prg`);
+ addMessage("system", ".PRG file downloaded");
+ } catch (err) {
+ console.error('Failed to export PRG', err);
+ showError('Failed to export .prg');
+ }
+}
+
+function handleExportT64() {
+ try {
+ const prg = buildPrgFromBasic(c64);
+ const t64 = buildT64FromPrg(prg, 'viciious');
+ downloadT64(t64, `viciious-${new Date().toISOString().replace(/[:.]/g,'-')}.t64`);
+ addMessage("system", ".T64 file downloaded");
+ } catch (err) {
+ console.error('Failed to export T64', err);
+ showError('Failed to export .t64');
+ }
+}
+
+function handleImportCode() {
+ const fileInput = document.getElementById("aiChat-importInput");
+ if (fileInput) {
+ fileInput.click();
+ }
+}
+
+function handleFileSelected(event) {
+ const file = event.target.files[0];
+ if (!file) return;
+
+ const reader = new FileReader();
+
+ reader.onload = function(e) {
+ try {
+ const content = e.target.result;
+
+ // Validate that it looks like BASIC code
+ if (!content || content.trim() === "") {
+ showError("File is empty");
+ return;
+ }
+
+ // Write the program to C64 RAM
+ writeBasicProgramToRam(c64, content);
+
+ addMessage("system", `Imported BASIC program from ${file.name} - type LIST to see it`);
+
+ // Close the dialog after successful import
+ dialog.close();
+
+ // Clear the file input so the same file can be imported again
+ event.target.value = "";
+ } catch (error) {
+ console.error("Error importing BASIC program:", error);
+ showError(`Failed to import code: ${error.message}`);
+ }
+ };
+
+ reader.onerror = function() {
+ showError("Failed to read file");
+ };
+
+ reader.readAsText(file);
+}
+
+// Make dialog draggable by clicking and dragging on the title area
+function makeDraggable(dialogElement) {
+ let isDragging = false;
+ let currentX;
+ let currentY;
+ let initialX;
+ let initialY;
+ let xOffset = 0;
+ let yOffset = 0;
+
+ // Get the title element (h1) to use as drag handle
+ const dragHandle = dialogElement.querySelector("h1");
+ if (!dragHandle) return;
+
+ // Add visual cursor feedback
+ dragHandle.style.cursor = "move";
+ dragHandle.style.userSelect = "none";
+
+ dragHandle.addEventListener("mousedown", dragStart);
+ document.addEventListener("mousemove", drag);
+ document.addEventListener("mouseup", dragEnd);
+
+ // Reset position when dialog is closed
+ const observer = new MutationObserver((mutations) => {
+ mutations.forEach((mutation) => {
+ if (mutation.type === "attributes" && mutation.attributeName === "class") {
+ if (dialogElement.classList.contains("undisplayed")) {
+ // Reset offsets when dialog is closed
+ xOffset = 0;
+ yOffset = 0;
+ currentX = 0;
+ currentY = 0;
+ initialX = 0;
+ initialY = 0;
+ }
+ }
+ });
+ });
+
+ observer.observe(dialogElement, { attributes: true });
+
+ function dragStart(e) {
+ // Only drag on left click
+ if (e.button !== 0) return;
+
+ // Don't drag if clicking on close button
+ if (e.target.classList.contains("close")) return;
+
+ initialX = e.clientX - xOffset;
+ initialY = e.clientY - yOffset;
+
+ isDragging = true;
+ dialogElement.style.transition = "none";
+ }
+
+ function drag(e) {
+ if (!isDragging) return;
+
+ e.preventDefault();
+
+ currentX = e.clientX - initialX;
+ currentY = e.clientY - initialY;
+
+ xOffset = currentX;
+ yOffset = currentY;
+
+ setTranslate(currentX, currentY, dialogElement);
+ }
+
+ function dragEnd(e) {
+ if (!isDragging) return;
+
+ initialX = currentX;
+ initialY = currentY;
+
+ isDragging = false;
+
+ // Restore transitions after drag
+ setTimeout(() => {
+ if (!isDragging) {
+ dialogElement.style.transition = "";
+ }
+ }, 50);
+ }
+
+ function setTranslate(xPos, yPos, el) {
+ el.style.transform = `translate(${xPos}px, ${yPos}px)`;
+ }
+}
+
diff --git a/src/host/webFrontEnd/basicFileWatcher.js b/src/host/webFrontEnd/basicFileWatcher.js
new file mode 100644
index 0000000..daa1ab0
--- /dev/null
+++ b/src/host/webFrontEnd/basicFileWatcher.js
@@ -0,0 +1,143 @@
+/*
+ BASIC File Watcher
+ Monitors a file called "current.basic" and auto-loads it when modified
+*/
+
+import { writeBasicProgramToRam, autoRunBasicProgram } from "../../tools/basicTokenizer";
+
+let c64;
+let isWatching = false;
+let lastModified = null;
+let checkInterval = null;
+
+const WATCH_INTERVAL = 1000; // Check every second
+const FILE_PATH = '/current.basic'; // Relative to the web root
+
+export function initBasicFileWatcher(nascentC64) {
+ c64 = nascentC64;
+ console.log('BASIC File Watcher initialized');
+}
+
+export function startWatching() {
+ if (isWatching) return;
+
+ isWatching = true;
+ console.log('Starting to watch for current.basic changes...');
+
+ // Try to load the file immediately on start
+ setTimeout(() => {
+ loadBasicFile().catch(err => {
+ console.log('No current.basic file found on startup (this is ok)');
+ });
+ }, 1000); // Wait 1 second for C64 to be fully initialized
+
+ checkInterval = setInterval(async () => {
+ try {
+ const response = await fetch(FILE_PATH, {
+ method: 'HEAD',
+ cache: 'no-cache'
+ });
+
+ if (response.ok) {
+ const modified = response.headers.get('Last-Modified');
+
+ if (lastModified && modified !== lastModified) {
+ console.log('Detected change in current.basic, reloading...');
+ await loadBasicFile();
+ }
+
+ lastModified = modified;
+ }
+ } catch (error) {
+ // File doesn't exist or network error - that's ok
+ if (lastModified !== null) {
+ console.log('current.basic no longer accessible');
+ lastModified = null;
+ }
+ }
+ }, WATCH_INTERVAL);
+}
+
+export function stopWatching() {
+ if (!isWatching) return;
+
+ isWatching = false;
+ if (checkInterval) {
+ clearInterval(checkInterval);
+ checkInterval = null;
+ }
+ console.log('Stopped watching current.basic');
+}
+
+async function loadBasicFile() {
+ try {
+ const response = await fetch(FILE_PATH, {
+ cache: 'no-cache',
+ headers: {
+ 'Cache-Control': 'no-cache, no-store, must-revalidate',
+ 'Pragma': 'no-cache',
+ 'Expires': '0'
+ }
+ });
+
+ if (!response.ok) {
+ console.warn('Failed to load current.basic:', response.status);
+ return;
+ }
+
+ const content = await response.text();
+
+ if (!content || content.trim() === "") {
+ console.warn('current.basic is empty');
+ return;
+ }
+
+ console.log('Loading BASIC program:', content.substring(0, 100) + '...');
+
+ // Write the program to C64 RAM
+ writeBasicProgramToRam(c64, content);
+
+ // Auto-run the program
+ setTimeout(() => {
+ autoRunBasicProgram(c64);
+ }, 100); // Small delay to ensure the program is fully loaded
+
+ console.log('✓ Auto-loaded BASIC program from current.basic');
+ console.log('Program will auto-run in a moment...');
+
+ // Show notification to user
+ showNotification('Program reloaded and running...');
+ } catch (error) {
+ console.error('Error loading current.basic:', error);
+ showNotification('Error loading program: ' + error.message);
+ }
+}
+
+function showNotification(message) {
+ // Create a temporary notification element
+ const notification = document.createElement('div');
+ notification.style.position = 'fixed';
+ notification.style.bottom = '20px';
+ notification.style.right = '20px';
+ notification.style.backgroundColor = 'rgba(0, 0, 0, 0.8)';
+ notification.style.color = '#0f0';
+ notification.style.padding = '10px 20px';
+ notification.style.borderRadius = '5px';
+ notification.style.zIndex = '10000';
+ notification.style.fontFamily = 'monospace';
+ notification.style.fontSize = '14px';
+ notification.textContent = message;
+
+ document.body.appendChild(notification);
+
+ // Remove after 3 seconds
+ setTimeout(() => {
+ notification.style.opacity = '0';
+ notification.style.transition = 'opacity 0.5s';
+ setTimeout(() => {
+ if (notification.parentNode) {
+ document.body.removeChild(notification);
+ }
+ }, 500);
+ }, 3000);
+}
diff --git a/src/host/webFrontEnd/dialogs.css b/src/host/webFrontEnd/dialogs.css
index 9808446..6be2fe6 100644
--- a/src/host/webFrontEnd/dialogs.css
+++ b/src/host/webFrontEnd/dialogs.css
@@ -18,6 +18,8 @@
box-shadow: 0 0 50px #0004;
transition: opacity 0.25s, top 0.25s;
+
+ z-index: 100;
}
.dialog.undisplayed {
@@ -62,6 +64,8 @@
bottom: 0;
left: 0;
right: 0;
+ z-index: 50;
+ background-color: rgba(0, 0, 0, 0.5);
}
.dialog .tip {
diff --git a/src/host/webFrontEnd/exportPrg.js b/src/host/webFrontEnd/exportPrg.js
new file mode 100644
index 0000000..6daaa7e
--- /dev/null
+++ b/src/host/webFrontEnd/exportPrg.js
@@ -0,0 +1,89 @@
+// Build a .prg file from current BASIC program in C64 RAM
+export function buildPrgFromBasic(c64) {
+ const ram = c64.ram;
+ const BASIC_START = 0x0801;
+ const varLo = ram.readRam(0x2d);
+ const varHi = ram.readRam(0x2e);
+ const varPtr = varLo | (varHi << 8);
+
+ if (varPtr <= BASIC_START) {
+ throw new Error("No BASIC program present");
+ }
+ const length = varPtr - BASIC_START;
+ if (length <= 0) {
+ throw new Error("Invalid BASIC length");
+ }
+
+ const prg = new Uint8Array(2 + length);
+ prg[0] = BASIC_START & 0xff;
+ prg[1] = (BASIC_START >> 8) & 0xff;
+
+ for (let i = 0; i < length; i++) {
+ prg[2 + i] = ram.readRam(BASIC_START + i);
+ }
+
+ return prg;
+}
+
+export function downloadPrg(uint8Array, filename = 'program.prg') {
+ const blob = new Blob([uint8Array], { type: 'application/octet-stream' });
+ const url = URL.createObjectURL(blob);
+ const a = document.createElement('a');
+ a.href = url;
+ a.download = filename;
+ document.body.appendChild(a);
+ a.click();
+ document.body.removeChild(a);
+ URL.revokeObjectURL(url);
+}
+
+// Build a minimal .t64 tape image containing a single PRG file
+export function buildT64FromPrg(prgUint8, filename = 'PROGRAM') {
+ // T64 format (v1) minimal implementation for single file
+ // Header 0x54.. 'C64 tape image file' signature is 'C64-TAPE-RAW' historically; we'll use the common 'C64-TAPE-RAW' style
+ // Simpler approach: build a T64 with header and one entry
+
+ const fileNameBytes = new Uint8Array(32);
+ for (let i = 0; i < Math.min(filename.length, 32); i++) {
+ fileNameBytes[i] = filename.charCodeAt(i);
+ }
+
+ // T64 header is 64 bytes; directory entry is 32 bytes; then file data
+ const header = new Uint8Array(64);
+ // Signature 'C64-TAPE-RAW' (not strictly standardized) - many tools accept 'C64-TAPE-RAW' or 'C64-TAPE-RAW' variants
+ const sig = 'C64-TAPE-RAW';
+ for (let i = 0; i < sig.length; i++) header[i] = sig.charCodeAt(i);
+ // Version at offset 0x10 (16)
+ header[0x10] = 0x01; // version
+ // Number of entries (little-endian) at 0x1E
+ header[0x1E] = 1;
+
+ // Directory entry (32 bytes)
+ const dir = new Uint8Array(32);
+ // filename (16 or 32 depending on variant) - put in dir[0..31]
+ dir.set(fileNameBytes.subarray(0, 32), 0);
+ // file type at offset 0x20 within dir - but in our 32-byte dir we place type at 0x20-0x1C mapping; simplified:
+ // We'll include load address (2 bytes) and length (3 bytes) in positions used by common loaders.
+
+ // For compatibility, append a small file header after directory: we will construct a simple stream: [header][dir][prg]
+
+ const out = new Uint8Array(header.length + dir.length + prgUint8.length);
+ let offset = 0;
+ out.set(header, offset); offset += header.length;
+ out.set(dir, offset); offset += dir.length;
+ out.set(prgUint8, offset);
+
+ return out;
+}
+
+export function downloadT64(uint8Array, filename = 'program.t64') {
+ const blob = new Blob([uint8Array], { type: 'application/octet-stream' });
+ const url = URL.createObjectURL(blob);
+ const a = document.createElement('a');
+ a.href = url;
+ a.download = filename;
+ document.body.appendChild(a);
+ a.click();
+ document.body.removeChild(a);
+ URL.revokeObjectURL(url);
+}
diff --git a/src/host/webFrontEnd/images/svg_icon-ai-chat.svg b/src/host/webFrontEnd/images/svg_icon-ai-chat.svg
new file mode 100644
index 0000000..737608f
--- /dev/null
+++ b/src/host/webFrontEnd/images/svg_icon-ai-chat.svg
@@ -0,0 +1,6 @@
+
diff --git a/src/host/webFrontEnd/index.js b/src/host/webFrontEnd/index.js
index c65a893..ca7f739 100644
--- a/src/host/webFrontEnd/index.js
+++ b/src/host/webFrontEnd/index.js
@@ -14,6 +14,8 @@ import { initJoystickDialog } from "./joystickDialog";
import { initKeyMapDialog } from "./keyMapDialog";
import { initLoaderDialog } from "./loaderDialog";
import { initDiskDialog } from "./diskDialog";
+import { initAiChatDialog } from "./aiChatDialog";
+import { initBasicFileWatcher, startWatching } from "./basicFileWatcher";
// A development aid. Don't commit with this turned on.
const pauseOnMenus = false;
@@ -56,7 +58,12 @@ export function attach(nascentC64) {
initKeyMapDialog(c64);
initLoaderDialog(c64);
initDiskDialog(c64);
+ initAiChatDialog(c64);
initScopes(c64);
+ initBasicFileWatcher(c64);
+
+ // Start watching for current.basic file changes
+ startWatching();
c64.hooks.reportError = showErrorDialog;
c64.hooks.setTitle = setTitle;
diff --git a/src/host/webFrontEnd/lowerTray.js b/src/host/webFrontEnd/lowerTray.js
index 8227f80..f2af421 100644
--- a/src/host/webFrontEnd/lowerTray.js
+++ b/src/host/webFrontEnd/lowerTray.js
@@ -1,6 +1,7 @@
import { Dialog } from "./dialogs";
import { toggleScopes } from "./scopes";
import { takeSnapshot } from "./snapshot";
+import { openAiChatDialog } from "./aiChatDialog";
let c64;
@@ -22,6 +23,12 @@ export function initLowerTray(nascentC64) {
);
}
+ handlerForEventForId(
+ "aiChatButton",
+ "click",
+ () => openAiChatDialog()
+ );
+
handlerForEventForId(
"pauseButton",
"click",
diff --git a/src/host/webFrontEnd/template.ejs b/src/host/webFrontEnd/template.ejs
index ddb2056..32ce390 100644
--- a/src/host/webFrontEnd/template.ejs
+++ b/src/host/webFrontEnd/template.ejs
@@ -120,7 +120,7 @@
-
+
@@ -422,6 +422,38 @@
+
+
+
AI Assistant
+
+
+
+
+
Code Change Proposed
+
+
+
+
+
+
+
+
+
+
+
+
+
+
diff --git a/src/tools/basicExtractor.js b/src/tools/basicExtractor.js
new file mode 100644
index 0000000..cc2181e
--- /dev/null
+++ b/src/tools/basicExtractor.js
@@ -0,0 +1,141 @@
+/*
+ BASIC program extractor and detokenizer
+ Extracts BASIC programs from C64 RAM and converts them to readable text
+*/
+
+// BASIC tokens (from $80 to $CB)
+const tokens = {
+ 0x80: "END", 0x81: "FOR", 0x82: "NEXT", 0x83: "DATA", 0x84: "INPUT#",
+ 0x85: "INPUT", 0x86: "DIM", 0x87: "READ", 0x88: "LET", 0x89: "GOTO",
+ 0x8A: "RUN", 0x8B: "IF", 0x8C: "RESTORE", 0x8D: "GOSUB", 0x8E: "RETURN",
+ 0x8F: "REM", 0x90: "STOP", 0x91: "ON", 0x92: "WAIT", 0x93: "LOAD",
+ 0x94: "SAVE", 0x95: "VERIFY", 0x96: "DEF", 0x97: "POKE", 0x98: "PRINT#",
+ 0x99: "PRINT", 0x9A: "CONT", 0x9B: "LIST", 0x9C: "CLR", 0x9D: "CMD",
+ 0x9E: "SYS", 0x9F: "OPEN", 0xA0: "CLOSE", 0xA1: "GET", 0xA2: "NEW",
+ 0xA3: "TAB(", 0xA4: "TO", 0xA5: "FN", 0xA6: "SPC(", 0xA7: "THEN",
+ 0xA8: "NOT", 0xA9: "STEP", 0xAA: "+", 0xAB: "-", 0xAC: "*", 0xAD: "/",
+ 0xAE: "^", 0xAF: "AND", 0xB0: "OR", 0xB1: ">", 0xB2: "=", 0xB3: "<",
+ 0xB4: "SGN", 0xB5: "INT", 0xB6: "ABS", 0xB7: "USR", 0xB8: "FRE",
+ 0xB9: "POS", 0xBA: "SQR", 0xBB: "RND", 0xBC: "LOG", 0xBD: "EXP",
+ 0xBE: "COS", 0xBF: "SIN", 0xC0: "TAN", 0xC1: "ATN", 0xC2: "PEEK",
+ 0xC3: "LEN", 0xC4: "STR$", 0xC5: "VAL", 0xC6: "ASC", 0xC7: "CHR$",
+ 0xC8: "LEFT$", 0xC9: "RIGHT$", 0xCA: "MID$", 0xCB: "GO",
+ 0xFF: "Ï€", // PI character
+};
+
+// Extract BASIC program from C64 RAM
+export function extractBasicProgram(c64) {
+ const ram = c64.ram;
+ const lines = [];
+
+ // BASIC programs start at $0801 (2049)
+ let addr = 0x0801;
+
+ while (true) {
+ // Read pointer to next line (2 bytes, little-endian)
+ const nextLinePtr = ram.readRam(addr) | (ram.readRam(addr + 1) << 8);
+
+ // If pointer is 0, we've reached the end of the program
+ if (nextLinePtr === 0) {
+ break;
+ }
+
+ // Read line number (2 bytes, little-endian)
+ const lineNum = ram.readRam(addr + 2) | (ram.readRam(addr + 3) << 8);
+
+ // Start reading the line content
+ let lineAddr = addr + 4;
+ let lineText = "";
+
+ while (true) {
+ const byte = ram.readRam(lineAddr);
+
+ // End of line marker
+ if (byte === 0) {
+ break;
+ }
+
+ // Check if it's a token
+ if (byte >= 0x80 && byte <= 0xCB) {
+ const token = tokens[byte];
+ if (token) {
+ lineText += token;
+
+ // Add space after token unless it's a function or operator
+ if (![0xA3, 0xA6, 0xAA, 0xAB, 0xAC, 0xAD, 0xAE, 0xAF, 0xB0, 0xB1, 0xB2, 0xB3].includes(byte)) {
+ lineText += " ";
+ }
+ }
+ } else if (byte === 0xFF) {
+ lineText += "Ï€";
+ } else {
+ // Regular ASCII character
+ lineText += String.fromCharCode(byte);
+ }
+
+ lineAddr++;
+ }
+
+ lines.push({
+ number: lineNum,
+ text: lineText.trim(),
+ });
+
+ // Move to next line
+ addr = nextLinePtr;
+ }
+
+ return lines;
+}
+
+// Convert BASIC lines array to text format
+export function basicLinesToText(lines) {
+ if (lines.length === 0) {
+ return "READY.\n";
+ }
+
+ return lines.map(line => `${line.number} ${line.text}`).join('\n') + '\n\nREADY.\n';
+}
+
+// Tokenize BASIC text back into bytes
+// This is a simplified tokenizer - for full implementation would need more work
+export function tokenizeBasicLine(lineNum, text) {
+ const bytes = [];
+
+ // This will be filled in later - for now just convert to PETSCII
+ let i = 0;
+ while (i < text.length) {
+ let found = false;
+
+ // Check for multi-character tokens
+ for (const [tokenByte, tokenText] of Object.entries(tokens)) {
+ const byte = parseInt(tokenByte);
+ if (byte < 0x80) continue;
+
+ if (text.substr(i, tokenText.length).toUpperCase() === tokenText.toUpperCase()) {
+ bytes.push(byte);
+ i += tokenText.length;
+ found = true;
+
+ // Skip following space if present
+ if (text[i] === ' ') i++;
+ break;
+ }
+ }
+
+ if (!found) {
+ // Regular character
+ bytes.push(text.charCodeAt(i));
+ i++;
+ }
+ }
+
+ // Add null terminator
+ bytes.push(0);
+
+ // Build complete line: [next_ptr_lo, next_ptr_hi, line_num_lo, line_num_hi, ...bytes]
+ return {
+ lineNum,
+ bytes,
+ };
+}
diff --git a/src/tools/basicTokenizer.js b/src/tools/basicTokenizer.js
new file mode 100644
index 0000000..aced809
--- /dev/null
+++ b/src/tools/basicTokenizer.js
@@ -0,0 +1,277 @@
+/*
+ BASIC program tokenizer
+ Converts BASIC text to tokenized binary format for C64
+*/
+
+// BASIC tokens (from $80 to $CB)
+const TOKEN_MAP = {
+ "END": 0x80, "FOR": 0x81, "NEXT": 0x82, "DATA": 0x83, "INPUT#": 0x84,
+ "INPUT": 0x85, "DIM": 0x86, "READ": 0x87, "LET": 0x88, "GOTO": 0x89,
+ "RUN": 0x8A, "IF": 0x8B, "RESTORE": 0x8C, "GOSUB": 0x8D, "RETURN": 0x8E,
+ "REM": 0x8F, "STOP": 0x90, "ON": 0x91, "WAIT": 0x92, "LOAD": 0x93,
+ "SAVE": 0x94, "VERIFY": 0x95, "DEF": 0x96, "POKE": 0x97, "PRINT#": 0x98,
+ "PRINT": 0x99, "CONT": 0x9A, "LIST": 0x9B, "CLR": 0x9C, "CMD": 0x9D,
+ "SYS": 0x9E, "OPEN": 0x9F, "CLOSE": 0xA0, "GET": 0xA1, "NEW": 0xA2,
+ "TAB(": 0xA3, "TO": 0xA4, "FN": 0xA5, "SPC(": 0xA6, "THEN": 0xA7,
+ "NOT": 0xA8, "STEP": 0xA9, "+": 0xAA, "-": 0xAB, "*": 0xAC, "/": 0xAD,
+ "^": 0xAE, "AND": 0xAF, "OR": 0xB0, ">": 0xB1, "=": 0xB2, "<": 0xB3,
+ "SGN": 0xB4, "INT": 0xB5, "ABS": 0xB6, "USR": 0xB7, "FRE": 0xB8,
+ "POS": 0xB9, "SQR": 0xBA, "RND": 0xBB, "LOG": 0xBC, "EXP": 0xBD,
+ "COS": 0xBE, "SIN": 0xBF, "TAN": 0xC0, "ATN": 0xC1, "PEEK": 0xC2,
+ "LEN": 0xC3, "STR$": 0xC4, "VAL": 0xC5, "ASC": 0xC6, "CHR$": 0xC7,
+ "LEFT$": 0xC8, "RIGHT$": 0xC9, "MID$": 0xCA, "GO": 0xCB
+};
+
+// Operators and symbols that don't need a separator after them
+const OPERATORS = new Set(["+", "-", "*", "/", "^", ">", "=", "<"]);
+
+// Convert character to byte (ASCII to PETSCII conversion)
+function charToByte(char) {
+ const code = char.charCodeAt(0);
+
+ // PETSCII conversion:
+ // Uppercase A-Z (65-90) stays the same
+ // Lowercase a-z (97-122) needs to be converted to PETSCII (193-218)
+ if (code >= 97 && code <= 122) {
+ return code - 97 + 65; // Convert lowercase to uppercase for PETSCII
+ }
+
+ // For everything else, keep as-is
+ return code;
+}
+
+// Tokenize a single line of BASIC
+function tokenizeLine(lineText) {
+ const tokens = [];
+ let i = 0;
+ const text = lineText.trim();
+
+ // Special handling for REM - everything after REM is literal text
+ const remIndex = text.toUpperCase().indexOf('REM');
+ if (remIndex !== -1) {
+ // Check if REM is actually a keyword (not part of a variable name)
+ const beforeRem = text.substring(0, remIndex);
+ const afterRemStart = remIndex + 3;
+ const charAfterRem = text[afterRemStart];
+
+ // REM must be preceded by nothing, space, or colon, and followed by space or nothing
+ const isValidRem = (remIndex === 0 || beforeRem.endsWith(' ') || beforeRem.endsWith(':')) &&
+ (charAfterRem === undefined || charAfterRem === ' ' || charAfterRem === ':');
+
+ if (isValidRem) {
+ // Tokenize everything before REM
+ const beforeRemTokens = tokenizeWithoutRem(beforeRem);
+ tokens.push(...beforeRemTokens);
+
+ // Add REM token
+ tokens.push(TOKEN_MAP["REM"]);
+
+ // Add everything after REM as literal characters
+ const afterRem = text.substring(afterRemStart);
+ for (let j = 0; j < afterRem.length; j++) {
+ tokens.push(charToByte(afterRem[j]));
+ }
+
+ return tokens;
+ }
+ }
+
+ // No REM in line, tokenize normally
+ return tokenizeWithoutRem(text);
+}
+
+function tokenizeWithoutRem(text) {
+ const tokens = [];
+ let i = 0;
+
+ while (i < text.length) {
+ // Check for BASIC keywords
+ let foundToken = false;
+
+ // Try to match keywords (longest first to handle things like "PRINT#" before "PRINT")
+ const sortedKeywords = Object.keys(TOKEN_MAP).sort((a, b) => b.length - a.length);
+
+ for (const keyword of sortedKeywords) {
+ const upperText = text.substring(i).toUpperCase();
+
+ // Check if keyword matches at current position
+ if (upperText.startsWith(keyword)) {
+ // Make sure it's not part of a variable name
+ // Operators don't need a separator, but keywords do
+ const nextChar = text[i + keyword.length];
+ const needsSeparator = !OPERATORS.has(keyword);
+
+ if (!needsSeparator ||
+ nextChar === undefined ||
+ nextChar === ' ' ||
+ nextChar === '(' ||
+ nextChar === ')' ||
+ nextChar === ',' ||
+ nextChar === ';' ||
+ nextChar === ':' ||
+ nextChar === '"') {
+
+ tokens.push(TOKEN_MAP[keyword]);
+ i += keyword.length;
+ foundToken = true;
+ break;
+ }
+ }
+ }
+
+ if (!foundToken) {
+ // Not a keyword, treat as literal character
+ tokens.push(charToByte(text[i]));
+ i++;
+ }
+ }
+
+ return tokens;
+}
+
+// Tokenize complete BASIC program and write to C64 RAM
+export function writeBasicProgramToRam(c64, programText) {
+ console.log('writeBasicProgramToRam called with:', programText);
+
+ const lines = programText.trim().split('\n').filter(line => line.trim());
+ const programBytes = [];
+
+ // Parse and tokenize all lines first
+ const parsedLines = [];
+
+ for (const line of lines) {
+ const trimmedLine = line.trim();
+ if (!trimmedLine) continue;
+
+ // Extract line number
+ const match = trimmedLine.match(/^(\d+)\s+(.*)$/);
+ if (!match) {
+ console.warn('Invalid BASIC line (no line number):', trimmedLine);
+ continue;
+ }
+
+ const lineNum = parseInt(match[1], 10);
+ let lineText = match[2];
+
+ // Clean up :: at the start (replace with single colon or remove if it's the only content before REM)
+ if (lineText.startsWith('::')) {
+ lineText = lineText.substring(2).trim();
+ // If there's content after ::, add a colon separator
+ if (lineText && !lineText.toUpperCase().startsWith('REM')) {
+ lineText = ': ' + lineText;
+ }
+ }
+
+ // Skip empty lines (lines that only had ::)
+ if (!lineText) {
+ console.log(`Skipping empty line ${lineNum}`);
+ continue;
+ }
+
+ console.log(`Parsing line ${lineNum}: "${lineText}"`);
+
+ // Tokenize the line content
+ const tokenized = tokenizeLine(lineText);
+ console.log(`Tokenized to ${tokenized.length} bytes:`, tokenized);
+
+ parsedLines.push({ lineNum, tokenized });
+ }
+
+ // Now build the binary format with correct pointers
+ let currentAddr = 0x0801;
+
+ console.log(`Building ${parsedLines.length} lines starting at $0801`);
+
+ for (let i = 0; i < parsedLines.length; i++) {
+ const { lineNum, tokenized } = parsedLines[i];
+
+ // Calculate length of this line:
+ // 2 bytes for next line pointer + 2 bytes for line number + tokenized content + 1 byte for EOL
+ const lineLength = 2 + 2 + tokenized.length + 1;
+ const nextLineAddr = currentAddr + lineLength;
+
+ console.log(`Line ${lineNum}: addr=$${currentAddr.toString(16)}, length=${lineLength}, next=$${nextLineAddr.toString(16)}`);
+
+ // Next line pointer (2 bytes, little-endian)
+ // Points to the start of the next line (or to the end marker for the last line)
+ programBytes.push(nextLineAddr & 0xFF, (nextLineAddr >> 8) & 0xFF);
+
+ // Line number (2 bytes, little-endian)
+ programBytes.push(lineNum & 0xFF, (lineNum >> 8) & 0xFF);
+
+ // Tokenized line content
+ programBytes.push(...tokenized);
+
+ // End-of-line marker
+ programBytes.push(0x00);
+
+ currentAddr = nextLineAddr;
+ }
+
+ // Add final end-of-program marker (2 zero bytes)
+ programBytes.push(0x00, 0x00);
+
+ // Write program to RAM
+ const {wires: {cpuRead, cpuWrite}} = c64;
+
+ console.log(`Writing ${programBytes.length} bytes to RAM starting at $0801`);
+ console.log('First 20 bytes:', programBytes.slice(0, 20));
+
+ // Save current memory configuration
+ const dir = cpuRead(0);
+ const port = cpuRead(1);
+
+ // Set to all-RAM mode
+ cpuWrite(0, 0b111);
+ cpuWrite(1, 0);
+
+ // Clear BASIC area first (from $0801 to end of program)
+ for (let i = 0; i < 10000; i++) {
+ cpuWrite(0x0801 + i, 0);
+ }
+
+ // Write the program
+ for (let i = 0; i < programBytes.length; i++) {
+ cpuWrite(0x0801 + i, programBytes[i]);
+ }
+
+ // Update BASIC pointers
+ const endOfProgram = 0x0801 + programBytes.length;
+ const lo = endOfProgram & 0xFF;
+ const hi = (endOfProgram >> 8) & 0xFF;
+
+ cpuWrite(0x2d, lo); // pointer to beginning of variable area
+ cpuWrite(0x2e, hi);
+
+ cpuWrite(0x2f, lo); // pointer to beginning of array variable area
+ cpuWrite(0x30, hi);
+
+ cpuWrite(0x31, lo); // pointer to end of array variable area
+ cpuWrite(0x32, hi);
+
+ // Restore memory configuration
+ cpuWrite(0, dir);
+ cpuWrite(1, port);
+
+ console.log(`BASIC program written: ${programBytes.length} bytes, ending at $${endOfProgram.toString(16)}`);
+}
+
+// Auto-run BASIC program by simulating "RUN" command
+export function autoRunBasicProgram(c64) {
+ const {wires: {cpuWrite}} = c64;
+
+ // Write "RUN" + Enter into keyboard buffer
+ // Keyboard buffer starts at $0277
+ // Number of characters in buffer is at $C6
+
+ // R = 82, U = 85, N = 78, Enter = 13
+ cpuWrite(0x0277, 82); // R
+ cpuWrite(0x0278, 85); // U
+ cpuWrite(0x0279, 78); // N
+ cpuWrite(0x027A, 13); // Enter
+
+ // Set buffer length to 4
+ cpuWrite(0xC6, 4);
+
+ console.log('Auto-executing RUN command');
+}
\ No newline at end of file
diff --git a/test-full-tokenizer.js b/test-full-tokenizer.js
new file mode 100644
index 0000000..75f13b3
--- /dev/null
+++ b/test-full-tokenizer.js
@@ -0,0 +1,135 @@
+// Test completo del tokenizer con un programma semplice
+// Questo simula cosa succede quando clicchi Apply
+
+const TOKEN_MAP = {
+ "END": 0x80, "FOR": 0x81, "NEXT": 0x82, "DATA": 0x83, "INPUT#": 0x84,
+ "INPUT": 0x85, "DIM": 0x86, "READ": 0x87, "LET": 0x88, "GOTO": 0x89,
+ "RUN": 0x8A, "IF": 0x8B, "RESTORE": 0x8C, "GOSUB": 0x8D, "RETURN": 0x8E,
+ "REM": 0x8F, "STOP": 0x90, "ON": 0x91, "WAIT": 0x92, "LOAD": 0x93,
+ "SAVE": 0x94, "VERIFY": 0x95, "DEF": 0x96, "POKE": 0x97, "PRINT#": 0x98,
+ "PRINT": 0x99, "CONT": 0x9A, "LIST": 0x9B, "CLR": 0x9C, "CMD": 0x9D,
+ "SYS": 0x9E, "OPEN": 0x9F, "CLOSE": 0xA0, "GET": 0xA1, "NEW": 0xA2,
+ "TAB(": 0xA3, "TO": 0xA4, "FN": 0xA5, "SPC(": 0xA6, "THEN": 0xA7,
+ "NOT": 0xA8, "STEP": 0xA9, "+": 0xAA, "-": 0xAB, "*": 0xAC, "/": 0xAD,
+ "^": 0xAE, "AND": 0xAF, "OR": 0xB0, ">": 0xB1, "=": 0xB2, "<": 0xB3,
+ "SGN": 0xB4, "INT": 0xB5, "ABS": 0xB6, "USR": 0xB7, "FRE": 0xB8,
+ "POS": 0xB9, "SQR": 0xBA, "RND": 0xBB, "LOG": 0xBC, "EXP": 0xBD,
+ "COS": 0xBE, "SIN": 0xBF, "TAN": 0xC0, "ATN": 0xC1, "PEEK": 0xC2,
+ "LEN": 0xC3, "STR$": 0xC4, "VAL": 0xC5, "ASC": 0xC6, "CHR$": 0xC7,
+ "LEFT$": 0xC8, "RIGHT$": 0xC9, "MID$": 0xCA, "GO": 0xCB
+};
+
+function charToByte(char) {
+ return char.charCodeAt(0);
+}
+
+function tokenizeLine(lineText) {
+ const tokens = [];
+ let i = 0;
+ const text = lineText.trim();
+
+ while (i < text.length) {
+ let foundToken = false;
+
+ const sortedKeywords = Object.keys(TOKEN_MAP).sort((a, b) => b.length - a.length);
+
+ for (const keyword of sortedKeywords) {
+ const upperText = text.substring(i).toUpperCase();
+
+ if (upperText.startsWith(keyword)) {
+ const nextChar = text[i + keyword.length];
+ if (nextChar === undefined ||
+ nextChar === ' ' ||
+ nextChar === '(' ||
+ nextChar === ')' ||
+ nextChar === ',' ||
+ nextChar === ';' ||
+ nextChar === ':' ||
+ nextChar === '"') {
+
+ tokens.push(TOKEN_MAP[keyword]);
+ i += keyword.length;
+ foundToken = true;
+ break;
+ }
+ }
+ }
+
+ if (!foundToken) {
+ tokens.push(charToByte(text[i]));
+ i++;
+ }
+ }
+
+ return tokens;
+}
+
+// Test program from AI
+const program = `10 PRINT "HELLO WORLD"
+20 GOTO 10`;
+
+console.log('=== Testing BASIC Tokenizer ===');
+console.log('Input program:');
+console.log(program);
+console.log('');
+
+const lines = program.trim().split('\n').filter(line => line.trim());
+const parsedLines = [];
+
+for (const line of lines) {
+ const trimmedLine = line.trim();
+ const match = trimmedLine.match(/^(\d+)\s+(.*)$/);
+ if (!match) {
+ console.warn('Invalid line:', trimmedLine);
+ continue;
+ }
+
+ const lineNum = parseInt(match[1], 10);
+ const lineText = match[2];
+ const tokenized = tokenizeLine(lineText);
+
+ parsedLines.push({ lineNum, tokenized });
+ console.log(`Line ${lineNum}: "${lineText}"`);
+ console.log(` Tokens: [${tokenized.join(', ')}]`);
+ console.log(` Hex: ${tokenized.map(b => '0x' + b.toString(16).padStart(2, '0')).join(' ')}`);
+}
+
+console.log('');
+console.log('=== Building Memory Structure ===');
+
+const programBytes = [];
+let currentAddr = 0x0801;
+
+for (let i = 0; i < parsedLines.length; i++) {
+ const { lineNum, tokenized } = parsedLines[i];
+
+ const lineLength = 2 + 2 + tokenized.length + 1;
+ const nextLineAddr = currentAddr + lineLength;
+
+ console.log(`Line ${lineNum} at $${currentAddr.toString(16)}:`);
+ console.log(` Length: ${lineLength} bytes`);
+ console.log(` Next: $${nextLineAddr.toString(16)}`);
+
+ programBytes.push(nextLineAddr & 0xFF, (nextLineAddr >> 8) & 0xFF);
+ programBytes.push(lineNum & 0xFF, (lineNum >> 8) & 0xFF);
+ programBytes.push(...tokenized);
+ programBytes.push(0x00);
+
+ currentAddr = nextLineAddr;
+}
+
+programBytes.push(0x00, 0x00);
+
+console.log('');
+console.log('=== Complete Program in Memory ===');
+console.log(`Total bytes: ${programBytes.length}`);
+console.log(`End address: $${(0x0801 + programBytes.length).toString(16)}`);
+console.log('');
+console.log('Memory dump:');
+for (let i = 0; i < programBytes.length; i++) {
+ const addr = 0x0801 + i;
+ const byte = programBytes[i];
+ const hex = byte.toString(16).padStart(2, '0');
+ const ascii = (byte >= 32 && byte < 127) ? String.fromCharCode(byte) : '.';
+ console.log(`$${addr.toString(16).padStart(4, '0')}: ${hex} ${ascii}`);
+}
diff --git a/test-operators.js b/test-operators.js
new file mode 100644
index 0000000..bb526fe
--- /dev/null
+++ b/test-operators.js
@@ -0,0 +1,89 @@
+// Test operator tokenization
+
+const TOKEN_MAP = {
+ "PRINT": 0x99,
+ "IF": 0x8B,
+ "GOTO": 0x89,
+ "THEN": 0xA7,
+ "<": 0xB3,
+ ">": 0xB1,
+ "=": 0xB2,
+};
+
+const OPERATORS = new Set(["<", ">", "="]);
+
+function charToByte(char) {
+ return char.charCodeAt(0);
+}
+
+function tokenizeLine(lineText) {
+ const tokens = [];
+ let i = 0;
+ const text = lineText.trim();
+
+ while (i < text.length) {
+ let foundToken = false;
+
+ const sortedKeywords = Object.keys(TOKEN_MAP).sort((a, b) => b.length - a.length);
+
+ for (const keyword of sortedKeywords) {
+ const upperText = text.substring(i).toUpperCase();
+
+ if (upperText.startsWith(keyword)) {
+ const nextChar = text[i + keyword.length];
+ const needsSeparator = !OPERATORS.has(keyword);
+
+ if (!needsSeparator ||
+ nextChar === undefined ||
+ nextChar === ' ' ||
+ nextChar === '(' ||
+ nextChar === ')' ||
+ nextChar === ',' ||
+ nextChar === ';' ||
+ nextChar === ':' ||
+ nextChar === '"') {
+
+ tokens.push(TOKEN_MAP[keyword]);
+ i += keyword.length;
+ foundToken = true;
+ break;
+ }
+ }
+ }
+
+ if (!foundToken) {
+ tokens.push(charToByte(text[i]));
+ i++;
+ }
+ }
+
+ return tokens;
+}
+
+// Test cases
+const tests = [
+ 'PRINT "HELLO"',
+ 'IF A<10 THEN GOTO 100',
+ 'IF X>5 THEN PRINT "BIG"',
+ 'IF A=B THEN PRINT "EQUAL"'
+];
+
+tests.forEach(test => {
+ console.log(`\nInput: ${test}`);
+ const tokens = tokenizeLine(test);
+ console.log('Tokens:', tokens.map(t => '0x' + t.toString(16).padStart(2, '0')).join(' '));
+
+ // Decode
+ let decoded = '';
+ tokens.forEach(t => {
+ if (t === 0x99) decoded += 'PRINT ';
+ else if (t === 0x8B) decoded += 'IF ';
+ else if (t === 0x89) decoded += 'GOTO ';
+ else if (t === 0xA7) decoded += 'THEN ';
+ else if (t === 0xB3) decoded += '<';
+ else if (t === 0xB1) decoded += '>';
+ else if (t === 0xB2) decoded += '=';
+ else decoded += String.fromCharCode(t);
+ });
+ console.log('Decoded:', decoded);
+});
diff --git a/test-program-structure.js b/test-program-structure.js
new file mode 100644
index 0000000..dd5462b
--- /dev/null
+++ b/test-program-structure.js
@@ -0,0 +1,114 @@
+// Test complete program structure
+
+const program = `10 PRINT "HELLO"
+20 GOTO 10`;
+
+console.log('Testing program:');
+console.log(program);
+console.log('');
+
+// Simulate tokenization
+const TOKEN_MAP = {
+ "PRINT": 0x99,
+ "GOTO": 0x89,
+};
+
+function charToByte(char) {
+ return char.charCodeAt(0);
+}
+
+function tokenizeLine(lineText) {
+ const tokens = [];
+ let i = 0;
+ const text = lineText.trim();
+
+ while (i < text.length) {
+ let foundToken = false;
+
+ const sortedKeywords = Object.keys(TOKEN_MAP).sort((a, b) => b.length - a.length);
+
+ for (const keyword of sortedKeywords) {
+ const upperText = text.substring(i).toUpperCase();
+
+ if (upperText.startsWith(keyword)) {
+ const nextChar = text[i + keyword.length];
+ if (nextChar === undefined ||
+ nextChar === ' ' ||
+ nextChar === '(' ||
+ nextChar === ')' ||
+ nextChar === ',' ||
+ nextChar === ';' ||
+ nextChar === ':' ||
+ nextChar === '"') {
+
+ tokens.push(TOKEN_MAP[keyword]);
+ i += keyword.length;
+ foundToken = true;
+ break;
+ }
+ }
+ }
+
+ if (!foundToken) {
+ tokens.push(charToByte(text[i]));
+ i++;
+ }
+ }
+
+ return tokens;
+}
+
+const lines = program.trim().split('\n');
+const parsedLines = [];
+
+for (const line of lines) {
+ const match = line.match(/^(\d+)\s+(.*)$/);
+ const lineNum = parseInt(match[1], 10);
+ const lineText = match[2];
+ const tokenized = tokenizeLine(lineText);
+ parsedLines.push({ lineNum, tokenized });
+}
+
+// Build binary format
+const programBytes = [];
+let currentAddr = 0x0801;
+
+for (let i = 0; i < parsedLines.length; i++) {
+ const { lineNum, tokenized } = parsedLines[i];
+
+ const lineLength = 2 + 2 + tokenized.length + 1;
+ const nextLineAddr = currentAddr + lineLength;
+
+ console.log(`Line ${lineNum}:`);
+ console.log(` Current address: $${currentAddr.toString(16)}`);
+ console.log(` Line length: ${lineLength} bytes`);
+ console.log(` Next address: $${nextLineAddr.toString(16)}`);
+
+ // Next line pointer (always points to next address)
+ programBytes.push(nextLineAddr & 0xFF, (nextLineAddr >> 8) & 0xFF);
+ console.log(` Next ptr: ${nextLineAddr & 0xFF} ${(nextLineAddr >> 8) & 0xFF} ($${(nextLineAddr & 0xFF).toString(16)} $${((nextLineAddr >> 8) & 0xFF).toString(16)})`);
+
+ // Line number
+ programBytes.push(lineNum & 0xFF, (lineNum >> 8) & 0xFF);
+ console.log(` Line num: ${lineNum & 0xFF} ${(lineNum >> 8) & 0xFF}`);
+
+ // Tokenized content
+ programBytes.push(...tokenized);
+ console.log(` Content: [${tokenized.join(', ')}]`);
+
+ // EOL
+ programBytes.push(0x00);
+ console.log(` EOL: 0`);
+ console.log('');
+
+ currentAddr = nextLineAddr;
+}
+
+// Final end marker
+programBytes.push(0x00, 0x00);
+
+console.log('Complete program bytes:');
+console.log(programBytes.map(b => '0x' + b.toString(16).padStart(2, '0')).join(' '));
+console.log('');
+console.log(`Total size: ${programBytes.length} bytes`);
+console.log(`End address: $${(0x0801 + programBytes.length).toString(16)}`);
diff --git a/test-tokenizer.js b/test-tokenizer.js
new file mode 100644
index 0000000..8db1d67
--- /dev/null
+++ b/test-tokenizer.js
@@ -0,0 +1,64 @@
+// Quick test of tokenizer logic
+
+const TOKEN_MAP = {
+ "PRINT": 0x99,
+ "GOTO": 0x89,
+ "FOR": 0x81,
+ "NEXT": 0x82,
+ "REM": 0x8F,
+};
+
+function charToByte(char) {
+ return char.charCodeAt(0);
+}
+
+function tokenizeLine(lineText) {
+ const tokens = [];
+ let i = 0;
+ const text = lineText.trim();
+
+ while (i < text.length) {
+ let foundToken = false;
+
+ const sortedKeywords = Object.keys(TOKEN_MAP).sort((a, b) => b.length - a.length);
+
+ for (const keyword of sortedKeywords) {
+ const upperText = text.substring(i).toUpperCase();
+
+ if (upperText.startsWith(keyword)) {
+ const nextChar = text[i + keyword.length];
+ if (nextChar === undefined ||
+ nextChar === ' ' ||
+ nextChar === '(' ||
+ nextChar === ')' ||
+ nextChar === ',' ||
+ nextChar === ';' ||
+ nextChar === ':' ||
+ nextChar === '"') {
+
+ tokens.push(TOKEN_MAP[keyword]);
+ i += keyword.length;
+ foundToken = true;
+ break;
+ }
+ }
+ }
+
+ if (!foundToken) {
+ tokens.push(charToByte(text[i]));
+ i++;
+ }
+ }
+
+ return tokens;
+}
+
+// Test
+const testLine = 'PRINT "HELLO WORLD"';
+console.log('Input:', testLine);
+const tokenized = tokenizeLine(testLine);
+console.log('Tokenized:', tokenized);
+console.log('Hex:', tokenized.map(b => '0x' + b.toString(16).padStart(2, '0')).join(' '));
+
+// Expected: 0x99 (PRINT) + space + quote + HELLO WORLD + quote
+// 0x99 0x20 0x22 0x48 0x45 0x4C 0x4C 0x4F 0x20 0x57 0x4F 0x52 0x4C 0x44 0x22
diff --git a/webpack.config.js b/webpack.config.js
index 345cddb..dbd55c0 100644
--- a/webpack.config.js
+++ b/webpack.config.js
@@ -15,6 +15,17 @@ module.exports = [
devtool: "inline-source-map",
devServer: {
static: "./dist/web-dev",
+ setupMiddlewares: (middlewares, devServer) => {
+ if (!devServer) {
+ throw new Error('webpack-dev-server is not defined');
+ }
+
+ // Add AI chat API server
+ const aiChatServer = require('./src/host/aiChatServer');
+ devServer.app.use(aiChatServer);
+
+ return middlewares;
+ },
},
plugins: [
new HtmlWebpackPlugin({