R3
E697035
R3 is one of the general-purpose registers in the PDP-11 minicomputer architecture, used for arithmetic, logical operations, and addressing.
All labels observed (1)
| Label | Occurrences |
|---|---|
| R3 canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T7920722 — resolving that mention is where its identity was fixed. The disambiguator weighed these candidate entities and picked the highlighted one (or “None”, minting a new entity). This is how homonymy is resolved: the same surface form can point to different entities.
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: R3 Context triple: [PDP-11, hasRegister, R3]
-
A.
R5
R5 is a government office building in Oslo that forms part of Norway’s central Regjeringskvartalet complex.
-
B.
R5
R5 was a former designation for a commuter rail line in the SEPTA Regional Rail system serving the Paoli/Thorndale corridor in the Philadelphia area.
-
C.
R5
R5 is the U.S. Forest Service’s Pacific Southwest Region, which oversees national forests primarily in California and parts of neighboring areas.
-
D.
R4
R4 is a government office building in Oslo that forms part of Norway’s central Regjeringskvartalet complex.
-
E.
R37
R37 is a regional road in South Africa that serves as a key route connecting the town of Lydenburg with other parts of the Mpumalanga and Limpopo provinces.
- F. None of above. chosen
- G. Unsure - the case is ambiguous/there is not enough information to decide.
NED2
Entity disambiguation (via description)
gpt-5-mini-2025-08-07
Target entity: R3 Target entity description: R3 is one of the general-purpose registers in the PDP-11 minicomputer architecture, used for arithmetic, logical operations, and addressing.
-
A.
R5
R5 is a government office building in Oslo that forms part of Norway’s central Regjeringskvartalet complex.
-
B.
R5
R5 was a former designation for a commuter rail line in the SEPTA Regional Rail system serving the Paoli/Thorndale corridor in the Philadelphia area.
-
C.
R5
R5 is the U.S. Forest Service’s Pacific Southwest Region, which oversees national forests primarily in California and parts of neighboring areas.
-
D.
R4
R4 is a government office building in Oslo that forms part of Norway’s central Regjeringskvartalet complex.
-
E.
R37
R37 is a regional road in South Africa that serves as a key route connecting the town of Lydenburg with other parts of the Mpumalanga and Limpopo provinces.
- F. None of above. chosen
Statements (41)
| Predicate | Object |
|---|---|
| instanceOf |
general-purpose register
ⓘ
processor register ⓘ |
| abbreviationOf | Register 3 ⓘ |
| addressSpaceRole | general addressing register ⓘ |
| architectureFamily | PDP-11 ⓘ |
| canHold |
instruction operands
ⓘ
integer values ⓘ memory addresses ⓘ |
| dataPathRole |
destination operand register
ⓘ
source operand register ⓘ |
| designedFor | minicomputer systems ⓘ |
| hardwareCategory | CPU internal register ⓘ |
| hasAccessType |
read
ⓘ
read-write ⓘ write ⓘ |
| hasWidth | 16 bits ⓘ |
| introducedWith |
PDP-11 family
ⓘ
linked to:
PDP-11
|
| isDistinctFrom |
R6 (stack pointer)
ⓘ
R7 (program counter) ⓘ |
| isNumbered | 3 ⓘ |
| isOneOf | R0–R5 general-purpose registers ⓘ |
| manufacturer | Digital Equipment Corporation ⓘ |
| partOf |
PDP-11 architecture
ⓘ
linked to:
PDP-11
PDP-11 register set ⓘ
linked to:
PDP-11
|
| supportsAddressingMode |
autodecrement deferred mode
ⓘ
autodecrement mode ⓘ autoincrement deferred mode ⓘ autoincrement mode ⓘ index deferred mode ⓘ index mode ⓘ register deferred mode ⓘ register mode ⓘ |
| supportsInstructionSet |
PDP-11 instruction set
ⓘ
linked to:
PDP-11
|
| supportsOperationType |
addressing operations
ⓘ
arithmetic operations ⓘ logical operations ⓘ |
| typicalUse |
address calculation
ⓘ
temporary data storage ⓘ |
| usedBy | PDP-11 assembly language programs ⓘ |
| usedIn |
PDP-11 minicomputer
ⓘ
linked to:
PDP-11
|
| wordSize | 1 word ⓘ |
How these facts were elicited
The pipeline generated the facts above by prompting gpt-5.1 with this entity's name + description and the instruction below.
Instruction
You are a knowledge base construction expert. Given a subject entity and a description of it, return factual statements that you know for the subject as a JSON list of dictionaries(triples), where keys must be "subject", "predicate" and "object". The number of facts may be very high, between 25 to 50 or more, for very popular subjects. For less popular subjects, the number of facts can be very low, like 5 or 10. # Requirements - If you don't know the subject at all, return an empty list. - If the subject is not a named entity, return an empty list. - Include at least one triple where predicate is "instanceOf". - Do not get too wordy. - Separate several objects into multiple triples with one object.
Input
Subject: R3 Description of subject: R3 is one of the general-purpose registers in the PDP-11 minicomputer architecture, used for arithmetic, logical operations, and addressing.
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.