1. Instruction sets and data types
High-level languages define a number of data types, for both integers and floats. For integers, there are 8-bit, 16-bit, 32-bit and 64-bit signed and unsigned variants. For floats, there are 32-bit (single-precision) and 64-bit (double-precision) floats. This wide range of formats reflects the fact that applications have different requirements:
image processing uses bytes (8 bits), with one byte for grayscale processing and three bytes for color processing;
signal processing generally uses 16-bit data, etc.
With conventional, so-called scalar, instruction sets, arithmetic operations on integer data exist in just one format, corresponding to the number of bits in the instruction set's registers: 32-bit for 32-bit processors, 64-bit for 64-bit processors. When memory accesses...
Exclusive to subscribers. 97% yet to be discovered!
You do not have access to this resource.
Click here to request your free trial access!
Already subscribed? Log in!
The Ultimate Scientific and Technical Reference
This article is included in
Software technologies and System architectures
This offer includes:
Knowledge Base
Updated and enriched with articles validated by our scientific committees
Services
A set of exclusive tools to complement the resources
Practical Path
Operational and didactic, to guarantee the acquisition of transversal skills
Doc & Quiz
Interactive articles with quizzes, for constructive reading
Instruction sets and data types
Bibliography
- (1) - INTEL - Intel® 64 and IA-32 architectures software developer manuals. - http://www.intel.com/content/www/us/en/ processors/architectures-software- developer-manuals.html (page consultée le 4...
Exclusive to subscribers. 97% yet to be discovered!
You do not have access to this resource.
Click here to request your free trial access!
Already subscribed? Log in!
The Ultimate Scientific and Technical Reference