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Another follow up to this thread... I have had some success writing a standalone application to call and initiate the XTIDE ROM from the DOS command line. XTIDE initializes, installs the new INT13h driver and detects the hard drives/CF cards. Down side is something must be overwriting a DOS...

A follow up on this thread... After seeing a post from a forum member on another thread suggesting calling extension ROMs with a far jump (after correctly setting registers), I decided to write a small program to do just this and call the XTIDE BIOS ROM. Actually the program scans the extension...

Darn, a grammar error in my first post and I can't edit it. What a nob 🤭 Correction: Has anyone built the XTIDE BIOS as a device driver or standalone executable for use in the development stage?

Thanks for your reply. I've looked into this solution and have tried it with success on a XT clone. This is the same process as 'optromloader' which isn't suitable in my case as outlined in a reply above to @modem7

Sorry to ask a question about an old post but.. Please correct me if I'm wrong but were you suggesting calling the option ROM from a small standalone program? I'd be assuming the option ROM should return to the address after the call... then resume the program? Just thinking this could be a...

Thanks for your suggestions. Yes, my plan is to modify version 1.1.1 (as I've used it before with success on other PC's and is a smaller source package) as you have suggested without the bells and whistles. I just wanted to check if someone may have done this already... I have the Sanyo...

Thank you for the welcome and your suggestion of using 'optromloader'. It was a very good thought. I've experimented using optromloader with another XT clone and works well bringing up XTIDE BIOS on that system. The issue is that 1.) It requires a call to INT19h which doesn't exist because the...

Hello, Has built the XTIDE BIOS as a device driver or standalone executable for use in the development stage? I have a sum what PC compatible computer (Sanyo MBC 550) that cannot and will not search for BIOS extensions such as the XTIDE BIOS due to the nature of how it boots (loads a software...