International Business Machines Corporation

Shawn D Lundvall

Ronald Morton Smith, Sr

Phil C Yeh

Eric M Schwarz

Phil Chi-Chung Yeh

Michael F Cowlishaw

Ronald A Smith

Ronald M Smith

Kathleen M Walsh

Valerie Spencer

John P Burg

Joel Matthew Moss

Bradley D Snyder

A method and system for modifying software performance management and capacity planning is provided. The method includes presenting graphical images associated with tailoring hardware and software systems for specialized functionality. A selection and associated order for a group of images is received from a user. The specified group of images is stored with respect to the order and specialized software code associated with the group of images is generated and executed. In response, the candidate hardware and software system is tailored for specialized functionality with respect to capturing expert knowledge and best practices.

Software performance modification

Detection of whether a result of a floating point operation is safe. Characteristics of the result are examined to determine whether the result is safe or potentially unsafe, as defined by the user. An instruction is provided to facilitate detection of safe or potentially unsafe results.

Detection of potential need to use a larger data format in performing floating point operations

A decimal floating point finite number in a decimal floating point format is composed from the number in a different format. A decimal floating point format includes fields to hold information relating to the sign, exponent and significand of the decimal floating point finite number. Other decimal floating point data, including infinities and NaNs (not a number), are also composed. Decimal floating point data are also decomposed from the decimal floating point format to a different format. For composition and decomposition, one or more instructions may be employed, including a shift significand instruction.

Shift significand of decimal floating point data

A decimal floating point finite number in a decimal floating point format is composed from the number in a different format. A decimal floating point format includes fields to hold information relating to the sign, exponent and significand of the decimal floating point finite number. Other decimal floating point data, including infinities and NaNs (not a number), are also composed. Decimal floating point data are also decomposed from the decimal floating point format to a different format.

Decomposition of decimal floating point data

A method, system and program product for executing a multi-function instruction in an emulated computer system by specifying, via the multi-function instruction, either a capability query or execution of a selected function of one or more optional functions, wherein the selected function is an installed optional function, wherein the capability query determines which optional functions of the one or more optional functions are installed on the computer system.

Multi-function instruction that determines whether functions are installed on a system

Composition of decimal floating point data

A decimal floating point finite number in a decimal floating point format is composed from the number in a different format. A decimal floating point format includes fields to hold information relating to the sign, exponent and significand of the decimal floating point finite number. Other decimal floating point data, including infinities and NaNs (not a number), are also composed. Decimal floating point data are also decomposed from the decimal floating point format to a different format. For composition and decomposition, one or more instructions may be employed, including an insert biased exponent or extract biased exponent instruction.

Extract biased exponent of decimal floating point data

A decimal floating point finite number in a decimal floating point format is composed from the number in a different format. A decimal floating point format includes fields to hold information relating to the sign, exponent and significand of the decimal floating point finite number. Other decimal floating point data, including infinities and NaNs (not a number), are also composed. Decimal floating point data are also decomposed from the decimal floating point format to a different format. For composition and decomposition, one or more instructions may be employed, including one or more convert instructions.

Growing community of inventors

Midlothian, VA, United States of America

Shawn D Lundvall