- when possible, use internal references to the object's members, rather   than going through the hardcoded bx_pci object. - use devices->mem instead of BX_MEM, for same reason
- when possible, use internal references to the object's members, rather
  than going through the hardcoded bx_pci object.
- use devices->mem instead of BX_MEM, for same reason

marmolejo/bochs-zet,marmolejo/bochs-zet,marmolejo/bochs-zet,marmolejo/bochs-zet,marmolejo/bochs-zet