R3
E697035
R3 is one of the general-purpose registers in the PDP-11 minicomputer architecture, used for arithmetic, logical operations, and addressing.
Observed surface forms (1)
| Surface form | Occurrences |
|---|---|
| R3 (PDP-11 register) | 0 |
Statements (41)
| Predicate | Object |
|---|---|
| instanceOf |
general-purpose register
ⓘ
processor register ⓘ |
| abbreviationOf | Register 3 NERFINISHED ⓘ |
| addressSpaceRole | general addressing register ⓘ |
| architectureFamily | PDP-11 NERFINISHED ⓘ |
| 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 NERFINISHED ⓘ |
| isDistinctFrom |
R6 (stack pointer)
ⓘ
R7 (program counter) NERFINISHED ⓘ |
| isNumbered | 3 ⓘ |
| isOneOf | R0–R5 general-purpose registers ⓘ |
| manufacturer | Digital Equipment Corporation NERFINISHED ⓘ |
| partOf |
PDP-11 architecture
NERFINISHED
ⓘ
PDP-11 register set NERFINISHED ⓘ |
| 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 NERFINISHED ⓘ |
| supportsOperationType |
addressing operations
ⓘ
arithmetic operations ⓘ logical operations ⓘ |
| typicalUse |
address calculation
ⓘ
temporary data storage ⓘ |
| usedBy | PDP-11 assembly language programs ⓘ |
| usedIn | PDP-11 minicomputer NERFINISHED ⓘ |
| wordSize | 1 word ⓘ |
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.