OSDev.org

Posted: **Wed Sep 03, 2014 7:35 am**

Output buffer:

1E 00 02 00  CB 00 00 00  10 00 00 00  3F 00 00 00  00 20 03 00  00 00 00 00  00 02 DC F7  00 E0 DD BE  24 00 00 00  50 43 49 20  41 54 41 20
20 20 20 20  00 01 01 00  00 00 00 00  00 00 00 00  00 00 00 00  00 CD

Is it true, that DS:SI+0x1A should contain the address of EDD configuration parameters after the interrupt?! The problem is in that address at 0x1A (0xF7DC:E000) points to some nulls, not EDD configuration parameters.

Posted: **Wed Sep 03, 2014 7:55 am**

Roman wrote:
Code: Select all
DC F7  00 E0

That address is 0xE000:F7DC.

Posted: **Wed Sep 03, 2014 8:32 am**

Octocontrabass wrote:
Roman wrote:
Code: Select all
DC F7  00 E0
That address is 0xE000:F7DC.

Oops, I forgot about endianness.

OSDev.org

[SOLVED] INT 0x13 AH=0x48: EDD is null.

[SOLVED] INT 0x13 AH=0x48: EDD is null.

Re: INT 0x13 AH=0x48: EDD is null.

Re: INT 0x13 AH=0x48: EDD is null.