search

mfld-fr / emu86

Intel IA16 emulator for embedded development
37 stars 6 forks source link

BIOS INT 13h emulation #18

Closed ghaerr closed 3 years ago

ghaerr commented 3 years ago

Hello @mfld-fr,

Over at ELKS I was reading a discussion where you were helping debug a floppy disk problem several years ago, and you mentioned you were using EMU86 to step through BIOS int 13h (disk I/O service). Did you write int 13h emulation code for EMU86 and/or do you still have it?

I have been thinking of adding BIOS int 13h emulation code to EMU86, that would allow a "standard" ELKS Image file to be mapped into EMU86, booted, and run. The Image file would be passed as an EMU86 parameter and the first block read into memory at 0:7C00. EMU86 could then be used to emulate the PC version of ELKS starting from the boot code!

Is this something you are interested in having added to EMU86?

Thank you!

mfld-fr commented 3 years ago

Hello @ghaerr,

Here is the code I used to debug the ELKS early boot in EMU86 : https://github.com/mfld-fr/emu86/commit/23b76652b8a32c063ced1eb34e4c9bbf25707284.

Enjoy !

ghaerr commented 3 years ago

Thanks!!