80286 Build, Ep. #92 - Troubleshooting CPU Flags Register between BIOS and FreeDOS
Update: Thanks to feedback from others on this channel, the issue seems to be resolved. I was able to confirm that updating my interrupt service handlers to use "retf 2" instead of "iret" resolved the issue!
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This might be a pretty dry video for most. I am troubleshooting an issue where interrupt calls from FreeDOS to my BIOS don't return the expected values for the CPU flags register. I have posted additional details at https://www.rehsdonline.com/post/trou....