jimmy zhang

yes, why?

Thanks very much for your inputs and help!! Bochs is a great piece of software, and I am grateful that this project is run by awesome people like you!!

DOR's bit field definition says that bit #3, if set to 1, enables IRQ and DMA (on the 82077AA spec sheet), it says IRQ is enabled, DMA monitoring pin , Terminal count.. so there is a bit of ambiguity here vs OS dev site... if the sense input is indeed needed, should i do it 4 times if polling mode is automatic??

I found that indeed I need to sense input after fdc reset. I do not have to sense the interrupt status after floppy reset because I am in the DMA mode, not polling mode... After reading the documentation on osdev, I think there is error ambiguity in the article. below is from OS dev Sense Interrupt This command's main function is to return any error code from a Seek or Recalibrate command to your driver. It also clears an internal bitflag in the controller. It is required in three circumstances that...

I do not have to sense the interrupt status after floppy reset because I am in the DMA mode, not polling mode... below is from OS dev Sense Interrupt This command's main function is to return any error code from a Seek or Recalibrate command to your driver. It also clears an internal bitflag in the controller. It is required in three circumstances that produce interrupts. After doing a Controller Reset procedure with drive polling mode turned on. After the completion of a Seek command (or Relative...

I have tried to reset fdc twice, both times triggered the interrupt, no interrupt is triggered by recalibrate. I have tried to recalibrate without floppy reset, I got the interrupt!!!

I have tried to reset fdc twice, both times triggered the interrupt, no interrupt is triggered by recalibrate

I created a compressed zip file that contains everything I got with my OS, if you have a linux machine, just have to run the bochs script... to do that 1. unzip 2. cd into the directory that is generated by the unzip command 3. run this single command (cd src; make clean; make all); ./update_image.sh; ./run_bochs.sh