How to set Kernel mode in asm ?

mad3d · Post by **mad3d** » Thu Mar 22, 2007 11:50 am

Is there any source out there that I could check?

Saotome · Post by **Saotome** » Thu Mar 22, 2007 5:34 pm

Does it have to be asm?

from ps2cam_rpc.c :

...
        DI&#40;&#41;;
        ee_kmode_enter&#40;&#41;;
        
        iop_addr = &#40;int *&#41;&#40;0xbc000000+ret&#91;1&#93;&#41;;

        memcpy&#40;&campacket&#91;0&#93;,iop_addr, ret&#91;0&#93;&#41;;
                
        ee_kmode_exit&#40;&#41;;
        EI&#40;&#41;;
...

mad3d · Post by **mad3d** » Fri Mar 23, 2007 9:31 am

thanks a lot
but Im looking for asm way.

cloudhunter · Post by **cloudhunter** » Fri Mar 23, 2007 9:41 am

mad3d wrote:thanks a lot
but Im looking for asm way.

Forgive me if this isn't possible, but why not compile some code setting to kernel mode, and then disassemble it to see what it looks like in ASM?

Why does it specifically need to be in asm anyway? The PS2 SDK supports ASM embedded inside the C++ code.

Cloudy

jimparis · Post by **jimparis** » Fri Mar 23, 2007 4:31 pm

Go look at ee_kmode_enter, it's all inline asm anyway.
ps2sdk/ee/kernel/include/kernel.h