Method, system, program and data structure of instruction in conversion structure system


Application Number  00129488 Application Date  2000.12.29
Publication Number  1306245 Publication Date  2001.08.01
Priority Information   2000/1/14 US 09/483203  
International
Classification
 G06F9/318  
Applicant(s) Name  IBM Corp.  
Address    
Inventor(s) Name  A.O. Jeckson  
Patent Agency Code  72001 Patent Agent  wang yong
AbstractDisclosed is a method, system, program, and data structures for transforming an instruction in a first bit architecture, e.g., 32 bit, to an instruction in a second bit architecture, e.g., 64 bit. Code is transformed from an instruction in the first bit architecture having an operation code and at least one operand. A transform table is accessed including information for transforming the instruction in the first bit architecture to the second bit architecture. The instruction in the first bit architecture is transformed to a corresponding instruction in the second bit architecture if the transform table includes information indicating to modify the instruction in the first bit architecture. The transformation is based on transformation operations that modify the instruction in the first bit architecture to generate the instruction in the second bit architecture.