HawaiiBiosReader

https://github.com/OneB1t/HawaiiBiosReader

Hawaii Bios Reader Tool for Bios development Binary (exe) file is in Release-bin folder

 

Looking good.

 

very nice work

 

if someone wants to help with development or have some idea send me PM

 

Have you implemented bios checksum correction? its fairly easy

 

nope i know its not that complicated but spended few last days on voltage regulator research

 

You should parse the whole rom, check if it's valid, etc, instead of working with fixed offsets. And use pointers and structures.

 

so, about checksum

size of option rom is in third byte

the following is not an actual code;

char * rom;
int size = rom[3]*512;
int sum=0;
for (i=0; i++ ; i < size) sum = sum + rom;
sum = sum & 0xff;


sum should be 0, you need to correct last byte ( rom[size-1]) to make sum be zero.

 

ty for checksum
@b2rdark: meh too complicated as it need to rewrite alot of atomdis from linux no need for this

 

more like this

Code:

int size = *(biosptr + 2) << 9;
char sum = 0;

*(biosptr + 0x21) = sum;
for(int i = 0; i < size; i++) sum += *(biosptr + i);
*(biosptr + 0x21) = -sum;

where biosptr is a pointer to rom data

 

Nice save LOL, If you know what I mean.(in a good way)

Btw awesome work, keep it up.

 

checksum control implemented

 

nice work can't wait till it can mod my bios

 

Will memory timing editor be implemented?

BTW, very nice work!

 

prolly yes as memory timings are easy to parse out

 

Gpu oc

Very nice tool , Big THX

i have 2 question...

can i change the values ? or only read ?
it is possible to change the core voltage , i have the Powercolor LCS with water cooling. the stock voltage is overvolted +50mv in the orginal bios it is possible to change this with your tool ?