Fix missing ROM definitions in roms.plist

[anomixer]

Pull Request: Fix missing ROM definitions and suggest updated download URL

🔍 Symptom

When selecting certain machines in Ample—specifically the Macintosh PowerBook Duo 280, PowerBook Duo 280c, Pravetz 8C/82/8M, and TK3000 //e—the application reports missing firmwares. However, these ROMs cannot be found or downloaded through the built-in firmware manager because they are missing from the roms.plist definitions, despite being correctly referenced in models.plist.

🎯 Objective

This PR fixes this discrepancy by adding the missing ROM entries to Ample/Resources/roms.plist. It ensures that all machines currently supported by the model definitions can actually be used by allowing the UI to identify and acquire their necessary firmwares. Additionally, we include a suggestion for the download source to improve overall reliability.

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🛠️ Changes in Ample/Resources/roms.plist

The following system ROMs were defined in models.plist but missing from the firmware management list, preventing users from identifying or downloading required files via the UI.

1. Macintosh Additions

• Target: After macpd270c (around line 1636).
• Added: macpd280 (Macintosh PowerBook Duo 280).
• Reason: Consistency with the already present macpd280c.

2. Apple II Clone & Sub-system Additions

• Target: After ym2608 (around line 2488).
• Added:
  • prav8c (Pravetz 8C)
  • prav82 (Pravetz 82)
  • prav8m (Pravetz 8M)
  • tk3000 (TK3000 //e)
  • prav8ckb (Pravetz 8C Keyboard)
• Reason: These machines are functional in the core but currently report firmwares as "Not Specified" or "Download Failed" due to missing plist descriptors.

---

📝 Proposed XML Snippets

Location 1: PowerBook Duo Series

    <dict>
      <key>value</key>
      <string>macpd280</string>
      <key>description</key>
      <string>Macintosh PowerBook Duo 280</string>
    </dict>

Location 2: Apple II Clones & Peripherals

    <dict>
      <key>value</key>
      <string>prav8c</string>
      <key>description</key>
      <string>Pravetz 8C</string>
    </dict>
    <dict>
      <key>value</key>
      <string>tk3000</string>
      <key>description</key>
      <string>TK3000 //e</string>
    </dict>
    <dict>
      <key>value</key>
      <string>prav82</string>
      <key>description</key>
      <string>Pravetz 82</string>
    </dict>
    <dict>
      <key>value</key>
      <string>prav8m</string>
      <key>description</key>
      <string>Pravetz 8M</string>
    </dict>
    <dict>
      <key>value</key>
      <string>prav8ckb</string>
      <key>description</key>
      <string>Pravetz 8C Keyboard</string>
    </dict>

---

🌐 Download URL Suggestion

Currently, Ample relies on callapple.org. During testing for the Windows port, we observed that:

• callapple.org successfully covers the PowerBook Duo 280/280c ROMs.
• However, it lacks coverage for some Apple II clones such as the Pravetz series and TK3000 //e.

Therefore, we suggest adding:
https://mdk.cab/download/split/
as a fallback URL. It provides complete coverage for these clones and more modern MAME split sets, ensuring a 100% success rate for all systems defined in the library.

You might also consider implementing a selectable URL list (similar to the AmpleWin port) that allows users to pick their preferred source (e.g., callapple + mdk.cab) or automatically failover between them for maximum reliability.

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🎨 About the AmpleWin Port

This PR is submitted in conjunction with the development of AmpleWin, a precision Windows port of your project. You can explore the project and its detailed documentation here:

• Project Home: https://github.com/anomixer/ample
• Windows Subdirectory & README: https://github.com/anomixer/ample/tree/master/AmpleWin

Our goal is to achieve near 100% UI fidelity and feature parity for Windows users. To maintain a clean integration, all Windows-specific logic, scripts, and binaries are strictly isolated within the AmpleWin/ subdirectory. We strive to keep the upstream root directory and resources untouched. We are only proposing these changes to Ample/Resources/roms.plist because they are functionally essential to allow all machines in the library to be fully "bootable" via the UI for all users.

Thanks for your consideration.

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Note: This PR content was prepared by Antigravity AI as part of the AmpleWin Windows port project.