Segmented Virtual to Real Translation Assist
Original Publication Date: 1984-Jul-01
Included in the Prior Art Database: 2005-Feb-04
Translation of a range of contiguous virtual addresses to a range of contiguous real addresses is performed through appropriate registers and instructions to manipulate these registers without reference to the translation look-aside buffer (TLB) or page and segment tables. For terms and features referred to in this article reference is made to IBM System/37, Principles of Operation, GA22-7000. A Set Translation Range (STRG) instruction of the S format is provided to enable the control program to indicate that contiguous virtual to real mapping is to apply in a particular range or ranges. The contents of storage at the second operand address specify the contiguous virtual address range(s) and corresponding real address range(s).