Absolute Read/Write \ VOGONS

Absolute Read/Write

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First post, by EidakoV2

Posted on 2007-09-16, 19:38

EidakoV2 Offline

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Rank: Newbie
Posts: 1
Joined: 2007-09-16, 19:19

Out of curiosity, what does DOSBox do if it encounters an absolute read or write (INT 13h AH=02h/03h or, even worse, direct hardware I/O)? Is it possible to access a floppy or fixed drive's boot sector from the emulator?

Reply 1 of 1, by wd

Posted on 2007-09-16, 19:54

wd Offline

Rank DOSBox Author

Rank: DOSBox Author
Posts: 10813
Joined: 2003-12-03, 21:23

what does DOSBox do

Nothing, returns an error code. If you have a disk image installed
(imgmounted harddrive/floppy image) the respective file is accessed
through int13.
If you want to have access to physical drives you'd have to rewrite the
int13 handler a bit (bios_disk.cpp)

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