condition code register: meaning, definition, pronunciation and examples
Very Low (Specialist/Technical)Formal, highly technical (computer science, computer engineering, electronics)
Quick answer
What does “condition code register” mean?
A processor register containing flags that reflect the status or outcome of previous arithmetic or logical operations, such as zero, carry, overflow, or negative results.
Audio
Pronunciation
Definition
Meaning and Definition
A processor register containing flags that reflect the status or outcome of previous arithmetic or logical operations, such as zero, carry, overflow, or negative results.
A dedicated, fast-access memory location within a central processing unit (CPU) that holds a set of binary condition codes (or status flags). These flags are automatically set or cleared based on the result of executed instructions, enabling conditional program flow (e.g., jumps, branches) and system state monitoring in low-level computing.
Dialectal Variation
British vs American Usage
Differences
No significant lexical differences. Spelling of related terms follows regional conventions (e.g., 'behaviour' vs. 'behavior'), but the term itself is invariant.
Connotations
Identical technical connotations in both regions.
Frequency
Identical, very low frequency, confined to identical technical fields.
Grammar
How to Use “condition code register” in a Sentence
The CPU sets [the condition code register].The instruction affects [the condition code register].The programmer reads [the condition code register] to decide.Vocabulary
Collocations
Examples
Examples of “condition code register” in a Sentence
verb
British English
- The operation will condition the code register accordingly.
- The arithmetic logic unit conditions the flags.
American English
- The operation will condition the code register accordingly.
- The ALU conditions the flags.
adverb
British English
- The flag was set condition-code-dependently.
- (Adverbial use is extremely rare and contrived for this term.)
American English
- The flag was set condition-code-dependently.
- (Adverbial use is extremely rare and contrived for this term.)
adjective
British English
- The condition-code bits were examined.
- A condition-code register access instruction.
American English
- The condition-code bits were examined.
- A condition-code register access instruction.
Usage
Meaning in Context
Business
Not used.
Academic
Used in computer science, electrical engineering, and electronics textbooks, lectures, and research papers on computer architecture or low-level programming.
Everyday
Not used.
Technical
Core term in CPU datasheets, microcontroller programming, assembly language tutorials, processor design documents, and systems programming.
Vocabulary
Synonyms of “condition code register”
Strong
Neutral
Weak
Vocabulary
Antonyms of “condition code register”
Watch out
Common Mistakes When Using “condition code register”
- Pronouncing 'register' with a soft 'g' (as in 'regime') instead of the correct hard 'g'.
- Using 'conditional code register' (incorrect adjective form).
- Confusing it with a memory address register.
FAQ
Frequently Asked Questions
No. The Condition Code Register (CCR) holds status flags. The Program Counter (PC) holds the memory address of the next instruction to execute. They are distinct, special-purpose registers.
Typically not directly. High-level languages like Python or Java abstract this hardware detail. However, in languages like C or C++, inline assembly can be used to access it on some platforms.
Common flags include Zero (Z), Carry (C), Overflow (V), and Negative/Negative (N). Some architectures have others like Half-Carry or Interrupt disable.
It enables conditional logic (if/else, loops) at the machine level. Without it, a processor could not make decisions based on calculation results, severely limiting its capability.
A processor register containing flags that reflect the status or outcome of previous arithmetic or logical operations, such as zero, carry, overflow, or negative results.
Condition code register: in British English it is pronounced /kənˈdɪʃən kəʊd ˈrɛdʒɪstə/, and in American English it is pronounced /kənˈdɪʃən koʊd ˈrɛdʒɪstər/. Tap the audio buttons above to hear it.
Phrases
Idioms & Phrases
- “Set the flags”
- “Branch on condition”
- “Test the status”
Learning
Memory Aids
Mnemonic
Think of a Condition Code Register as the CPU's **report card** (condition codes) that it fills out after every calculation, which the program then reads to decide what to do next.
Conceptual Metaphor
A CONTROL PANEL OF LIGHT INDICATORS (flags) that light up (set) or turn off (clear) to show the machine's immediate operational status.
Practice
Quiz
What is the primary purpose of a condition code register?