Mr Nours wrote:Thanks for the tip! I didn't know ESC would update the disk content. It works fine.
Jookie wrote:Yes, there's some issue with the floppy change for a longer time... I've tried several things, e.g. to put the R/W floppy signal up and down, I've also streamed different data for a while, but TOS somehow didn't recognize that the floppy changed. If you might have any idea how and why it works with the real drive, but doesn't with my emulated drive, let me know, because I'm clueless now...
mfro wrote:TOS Media change detection is done based on the disk serial number stored within the boot sector.
If TOS is unsure whether the disk was changed and the serial number didn't change, it assumes its the same disk. Third party format programs that always create the same serial number during format can easily confuse the operating system...
AtariZoll wrote:So, you need to lower line WP when user changes floppy image. TOS checks it in vertical blank interrupts, and will give media change signal if there is low detected while no active disk access.
Jookie wrote:...AtariZoll wrote:So, you need to lower line WP when user changes floppy image. TOS checks it in vertical blank interrupts, and will give media change signal if there is low detected while no active disk access.
This is what it's done there, but it isn't enough in some cases, I guess...
My STE has CE on floppy cable A: and an external fdd on B:
If i put a floppy on B: and open it on the desktop all is ok.
I eject the floppy, close the B: windows, load another floppy and open it. The content of the first floppy is displayed even if it is not in the drive.
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