The memory architecture of a machine X is summarized in the following table.
(a) Assume that there are 8 bits reserved for the operating system functions (protection, replacement, valid, modified, and Hit/Miss- All overhead bits) other than required by the hardware translation algorithm. Derive the largest physical memory size (in bytes) allowed by this PTE format. Make sure you consider all the fields required by the translation algorithm.
(b) How large (in bytes) is the page table?
(c) Assuming 1 application exists in the system and the maximum physical memory is devoted to the process, how much physical space (in bytes) is there for the application's data and code.

Question

The memory architecture of a machine X is summarized in the following table.
  (a) Assume that there are 8 bits reserved for the operating system functions (protection, replacement, valid, modified, and Hit/Miss- All overhead bits) other than required by the hardware translation algorithm. Derive the largest physical memory size (in bytes) allowed by this PTE format. Make sure you consider all the fields required by the translation algorithm.
(b) How large (in bytes) is the page table?
(c) Assuming 1 application exists in the system and the maximum physical memory is devoted to the process, how much physical space (in bytes) is there for the application's data and code.

Quizplus · Accepted Answer

The Answer of The memory architecture of a machine X is summarized in the following table.
  (a) Assume that there are 8 bits reserved for the operating system functions (protection, replacement, valid, modified, and Hit/Miss- All overhead bits) other than required by the hardware translation algorithm. Derive the largest physical memory size (in bytes) allowed by this PTE format. Make sure you consider all the fields required by the translation algorithm.
(b) How large (in bytes) is the page table?
(c) Assuming 1 application exists in the system and the maximum physical memory is devoted to the process, how much physical space (in bytes) is there for the application's data and code.

The Memory Architecture of a Machine X Is Summarized in the Following