LOAD LOGICAL AND SHIFT GUARDED INSTRUCTION
First Claim
Patent Images
1. A computer program product for facilitating processing in a computing environment, said computer program product comprising:
- a computer readable storage medium readable by a processing circuit and storing instructions for performing a method comprising;
obtaining an instruction to perform a load and shift operation; and
executing the instruction, the executing comprising;
loading data from a location in memory, the location in memory designated by one or more fields associated with the instruction;
shifting the data by a shift amount to obtain a shifted value;
obtaining an intermediate result using the shifted value; and
performing guarded storage detection based on the intermediate result.
1 Assignment
0 Petitions
Accused Products
Abstract
A guarded storage facility sets up a boundary indicating a range of addresses to be guarded or protected. When a program attempts to access an address in a guarded section defined by the boundary, a guarded storage event occurs. Use of this facility facilitates performance of certain tasks within a computing environment, including storage reclamation.
-
Citations
20 Claims
-
1. A computer program product for facilitating processing in a computing environment, said computer program product comprising:
a computer readable storage medium readable by a processing circuit and storing instructions for performing a method comprising; obtaining an instruction to perform a load and shift operation; and executing the instruction, the executing comprising; loading data from a location in memory, the location in memory designated by one or more fields associated with the instruction; shifting the data by a shift amount to obtain a shifted value; obtaining an intermediate result using the shifted value; and performing guarded storage detection based on the intermediate result. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
-
11. A computer system for facilitating processing in a computing environment, said computer system comprising:
-
a memory; and a processor in communication with the memory, wherein the computer system is configured to perform a method, said method comprising; obtaining an instruction to perform a load and shift operation; and executing the instruction, the executing comprising; loading data from a location in memory, the location in memory designated by one or more fields associated with the instruction; shifting the data by a shift amount to obtain a shifted value; obtaining an intermediate result using the shifted value; and performing guarded storage detection based on the intermediate result. - View Dependent Claims (12, 13, 14, 15)
-
-
16. A computer-implemented method of facilitating processing in a computing environment, said computer-implemented method comprising:
-
obtaining an instruction to perform a load and shift operation; and executing the instruction, the executing comprising; loading data from a location in memory, the location in memory designated by one or more fields associated with the instruction; shifting the data by a shift amount to obtain a shifted value; obtaining an intermediate result using the shifted value; and performing guarded storage detection based on the intermediate result. - View Dependent Claims (17, 18, 19, 20)
-
Specification