Physical address developing unit

Details Physical address developing unit Physical address developing unit

G - Physics

06

F

354/239

G06F 9/32 (2006.01) G06F 9/355 (2006.01) G06F 12/02 (2006.01)

Patent

CA 1182580

ABSTRACT A physical address developing unit provided at a central processing unit to develop a physical address for accessing a main memory unit (MMU) whose field is divided into segments. A plurality of base registers store a plurality of offset addresses allotted for the segments. A plurality of segment base address registers store base addresses allotted for the segments. A plurality of segment number registers provided in one-to-one correspondence to the segment base address registers store the numbers allotted for each of the segment base address registers. Instruction storing means store a given instruction with a first field for indicating the number of one of the plurality of base registers and the number of one of the plurality of segment number registers, and a second field for indicating the displacement from the offset address stored in the one base register designated by the first field. First address developing means are provided for developing a tentative physical address for accessing the MMU by the sum of the offset address of the base register designated by the first field of the given instruction and the displacement of the second field of the instruc- tion. A second address developing means is provided for developing a final physical address for accessing the MMU by the sum of the tentative physical address given from the first address developing means and the segment base address in the one segment address register designated by the number of the one segment number register which is designated by the first field of the given in- struction.

379111

Affiliated with

Also associated with

Rating

Physical address developing unit does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Physical address developing unit, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Physical address developing unit will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFCA-PAI-O-1327800