Access method of bit zone in control register
A technology for controlling registers and access methods, applied in the direction of machine execution devices, etc., can solve the problems of frequent, tedious, and complicated manual description of flag bits, and achieve the effect of easy modification and maintenance, strong expression ability, and high description quality.
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Image
Examples
Embodiment Construction
[0059] The instructions of the target computer of the present invention can have a syntax form, which can be understood as: writing some instructions with very similar behaviors but only some routine behaviors as the same instruction, and adding a specific suffix Represents different routine behaviors; suppose the target machine instruction set has four instruction formats: "*", "*.", "*o", and "*o.", and the semantics of each instruction format are the same: "*" format has no effect, The "*." format affects the comparison flags LT, GT, EQ and SO in the CR0 control register, the "*o" format affects the overflow flags SO and OV in the fixed-point exception register (XER), and the "*o." format affects All of the above;
[0060] In order to describe instructions with four instruction formats, it is traditionally necessary to define four for each instruction, which is not only redundant and tedious. The present invention discloses an access method that affects the flag bits in the co...
PUM
Abstract
Description
Claims
Application Information
- R&D Engineer
- R&D Manager
- IP Professional
- Industry Leading Data Capabilities
- Powerful AI technology
- Patent DNA Extraction
Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.
© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap