- firstly I want to write a debug stub which is INDEPENDENT of specific
Mainchips, and small enough. The stub can set up a basic environment ( such as RAM initialization, uart initialization). It can also communicate with the develop PC through Serial port,and excute the debug command transfered by the develp PC.
I don't belive there's such thing as "chipset independent ram initalization". other than what what you descriped pretty much summarizes what LinuxBIOS is.
2. write a source debugger . --------- | | -------------------------- serial port | develop | | BIOS |debug stub | ----<---->--------- | pc |���� -------------------------- ----------- | | ------------------
the system figure
have you tried out bochs? It seems to me it may do pretty much what u want. Although it will put your problem sort of upside down where the burden will be to ensure accurate hardware representation by bochs.
just my two bits.