Setting Up the IDT from C

[Pype.Clicker]

hmm ... weird. Maybe you could check the IDT structure has the expected size (i.e. sizeof(IDTR)==6) ... Sometimes the C compiler may decide to add padding to have integer aligned ... i can't remember whether there is a flag to set to prevent him from doing this...

[shad]

Well I would try that, but my bootloader is acting up so ill have to come back to the kernel later... ( before i wasnt using a FS, so i had to keep modifying the size to load.. then it became more than a track.. disaster... )

[distantvoices]

maybe something like this (in c) will help out?

Code: Select all

  typedef struct{
     unsigned short limit;
     unsigned int base;
  }__attribute__((PACKED)) idtr_t;

as for your fs support in the bootloader:

keep track of logical sectors in some kind of fat (or inode) and have them be translated to chs by some function that feeds the floppy/harddisk-read/write function you may be have?

what does it say in the result phase?