2017-07-19 23:24 GMT+02:00 ingegneriaforense@alice.it < ingegneriaforense@alice.it>:
1- where (the name of the file) the INT 13H is implemented in the coreboot source code ?
It's not. coreboot doesn't provide BIOS services. For those, see seabios ( www.seabios.org)
2- if the INT 13H interrupt, when invoked by OS (or application programs), can do writing operations in the filesystem of the drive attached to the PC or only limits to writing operations in memory regions different by the filesystem ?
Not applicable
3- Is a way to see on the screen the fully sequence of operations coreboot
execute during the boot ? (i don't use QUEMU but program directly the bios eeprom chip).
coreboot boots too fast for any meaningful screen output so we dropped support for that years ago. There's a log in memory (cbmem -c) or on serial, if configured.
Patrick