Hitachi SH-4
E388057
The Hitachi SH-4 is a 32-bit RISC microprocessor known for its use in late-1990s gaming consoles and embedded systems, featuring strong floating-point performance for 3D graphics.
All labels observed (4)
| Label | Occurrences |
|---|---|
| Hitachi SH-4 canonical | 3 |
| Hitachi SH-4 CPU in Dreamcast | 1 |
| Hitachi SH7091 | 1 |
| Hitachi SH7750 | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T3778145 — 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: Hitachi SH-4 Context triple: [Dreamcast, cpu, Hitachi SH-4]
-
A.
Motorola 68851
The Motorola 68851 is an external paged memory management unit (MMU) designed to work with Motorola 68020 processors, providing advanced virtual memory and protection features.
-
B.
Motorola 88000 family
The Motorola 88000 family is a RISC-based microprocessor line developed by Motorola as a high-performance follow-up to its earlier 68000 series, aimed primarily at workstations and embedded systems.
-
C.
Motorola 68881
The Motorola 68881 is a floating-point coprocessor for Motorola 68000-series CPUs, providing hardware-accelerated arithmetic operations for improved performance in computing systems.
-
D.
Motorola 68000 family
The Motorola 68000 family is a line of 16/32-bit CISC microprocessors widely used in early personal computers, workstations, and game consoles during the 1980s and early 1990s.
-
E.
Motorola 68010
The Motorola 68010 is a 16/32-bit CISC microprocessor, an enhanced and more efficient successor to the Motorola 68000 widely used in early workstations and computers.
- 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: Hitachi SH-4 Target entity description: The Hitachi SH-4 is a 32-bit RISC microprocessor known for its use in late-1990s gaming consoles and embedded systems, featuring strong floating-point performance for 3D graphics.
-
A.
Motorola 68851
The Motorola 68851 is an external paged memory management unit (MMU) designed to work with Motorola 68020 processors, providing advanced virtual memory and protection features.
-
B.
Motorola 88000 family
The Motorola 88000 family is a RISC-based microprocessor line developed by Motorola as a high-performance follow-up to its earlier 68000 series, aimed primarily at workstations and embedded systems.
-
C.
Motorola 68881
The Motorola 68881 is a floating-point coprocessor for Motorola 68000-series CPUs, providing hardware-accelerated arithmetic operations for improved performance in computing systems.
-
D.
Motorola 68000 family
The Motorola 68000 family is a line of 16/32-bit CISC microprocessors widely used in early personal computers, workstations, and game consoles during the 1980s and early 1990s.
-
E.
Motorola 68010
The Motorola 68010 is a 16/32-bit CISC microprocessor, an enhanced and more efficient successor to the Motorola 68000 widely used in early workstations and computers.
- F. None of above. chosen
Statements (45)
| Predicate | Object |
|---|---|
| instanceOf |
32-bit microprocessor
ⓘ
RISC microprocessor ⓘ microprocessor ⓘ |
| applicationDomain |
gaming
ⓘ
industrial control ⓘ multimedia devices ⓘ |
| architectureFamily | SuperH ⓘ |
| bitWidth | 32-bit ⓘ |
| category |
embedded CPU
ⓘ
video game console CPU ⓘ |
| clockFrequencyRange | approximately 100 MHz to 200 MHz ⓘ |
| coreCount | 1 ⓘ |
| designType | RISC ⓘ |
| endianSupport | little-endian ⓘ |
| family | SH-4 series ⓘ |
| hasCache | yes ⓘ |
| hasDataCache | yes ⓘ |
| hasFloatingPointUnit | yes ⓘ |
| hasInstructionCache | yes ⓘ |
| hasVectorFloatingPointUnit | yes ⓘ |
| instructionSetArchitecture | SuperH-4 ⓘ |
| introducedInDecade | 1990s ⓘ |
| manufacturer | Hitachi ⓘ |
| notableFor |
high floating-point performance for its time
ⓘ
use in late-1990s game consoles ⓘ |
| optimizedFor |
3D graphics
ⓘ
floating-point performance ⓘ |
| pipelineDepth | 5-stage pipeline ⓘ |
| predecessor |
Hitachi SH-3
ⓘ
linked to:
SH-3
|
| successor |
SuperH SH-5
ⓘ
linked to:
SH-5
|
| supports |
SIMD-like vector operations
ⓘ
branch prediction ⓘ double-precision floating point ⓘ integer operations ⓘ single-precision floating point ⓘ |
| usedBy |
Sammy Corporation
ⓘ
Sega ⓘ |
| usedIn |
Atomiswave arcade system
ⓘ
Naomi 2 arcade system ⓘ
linked to:
Sega NAOMI
Naomi arcade system ⓘ
linked to:
Sega arcade systems
Sega Dreamcast ⓘ
linked to:
Dreamcast
automotive systems ⓘ consumer electronics ⓘ embedded systems ⓘ |
| wordSize | 32 bits ⓘ |
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: Hitachi SH-4 Description of subject: The Hitachi SH-4 is a 32-bit RISC microprocessor known for its use in late-1990s gaming consoles and embedded systems, featuring strong floating-point performance for 3D graphics.
Referenced by (6)
Full triples — surface form annotated when it differs from this entity's canonical label.
linked to: Hitachi SH-4
linked to: Hitachi SH-4
linked to: Hitachi SH-4