OSDev.org

Posted: **Thu Feb 24, 2011 4:02 pm**

Hi, I am new in the osdev world, but I think I wouldn't consider myself satisfied if I don't learn this one too.

I've written the simple "genesis" kernel from here, it works.

My host is an x86_64 box, but the kernel is supposed to be 32-bit. How can I get the bochs debugger to actually show me x86-specific code (e.g. EAX instead of RAX)?

Bochs has been configured like this:

Code: Select all

  ./configure --prefix=/usr --enable-vbe --without-wx --enable-cpu-level=6 \
              --enable-fpu \
                --enable-plugins --enable-x86-64 --enable-smp \
                --enable-long-phy-address --enable-debugger --enable-disasm --enable-debugger-gui \
                --enable-raw-serial --enable-vmx --enable-x86-debugger --enable-iodebug

Thanks

Posted: **Thu Feb 24, 2011 4:43 pm**

Compile Bochs without x86_64 support, or modify the internal debugger yourself to emit the correct mnemonics for the current operating mode.

OSDev.org

Getting bochs to show 32 instead of 64-bit on an x86_64 host

Getting bochs to show 32 instead of 64-bit on an x86_64 host

Re: Getting bochs to show 32 instead of 64-bit on an x86_64