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@mw308 mw308 commented Nov 7, 2025

Summary

Add the Research Machines RM Accelerator 350P2XB/450P3XB BIOS option which uses R2.20 on the AOpen AX6BC.

Also add the Hitachi CDR-8435 which these machines sometimes used.

Checklist

  • Closes #xxx
  • I have tested my changes locally and validated that the functionality works as intended
  • I have discussed this with core contributors already
  • This pull request requires changes to the ROM set

References

Reference info, images and video:
https://www.flickr.com/photos/34320897@N02/albums/72177720306919257/
https://www.cpcwiki.eu/index.php/User:Jonathanen#RM_Accelerator_450P3XB_Slot_A_ISA.2FPCI_-_Fri_3rd_March_2023_.2895.29
https://www.youtube.com/watch?v=gasLgBeDYEY&t=72s
https://theretroweb.com/motherboards/s/aopen-ax6bc#bios

@mw308 mw308 marked this pull request as ready for review November 7, 2025 10:32
@OBattler OBattler merged commit 0780526 into 86Box:master Nov 8, 2025
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2 participants