Statements (51)
| Predicate | Object |
|---|---|
| gptkbp:instance_of |
gptkb:architecture
|
| gptkbp:addressed |
Direct addressing
Immediate addressing Indexed addressing Indirect addressing Register addressing |
| gptkbp:architecture |
CISC
|
| gptkbp:data_type |
Bit fields
Character types Integer types Floating-point types |
| gptkbp:designed_by |
gptkb:Digital_Equipment_Corporation
|
| gptkbp:emulation |
gptkb:SIMH
VAXsim VAX emulator for Linux VAX emulator for Windows VAX emulator for mac OS |
| gptkbp:first_introduced |
gptkb:1977
|
| https://www.w3.org/2000/01/rdf-schema#label |
VAX hardware architecture
|
| gptkbp:instruction_set |
VAX instruction set
|
| gptkbp:involved_technology |
gptkb:DECnet
gptkb:RSX-11 gptkb:TOPS-10 gptkb:UNIX gptkb:RSTS/_E |
| gptkbp:legacy |
Influenced later architectures
Retired in the 2000s Used in business applications Used in many scientific applications |
| gptkbp:memory_type |
Paged memory
|
| gptkbp:notable_features |
Rich instruction set
Complex addressing modes Support for high-level languages |
| gptkbp:notable_models |
gptkb:VAX_11/780
gptkb:VAX_11/750 gptkb:VAX_4000 |
| gptkbp:operating_system |
gptkb:Ultrix
gptkb:VMS gptkb:Open_VMS |
| gptkbp:performance |
Virtual memory support
Hardware floating-point support Multi-processing support |
| gptkbp:registration |
General-purpose registers
Control registers Floating-point registers |
| gptkbp:successor |
Alpha architecture
|
| gptkbp:supports |
Backward compatibility
32-bit addressing |
| gptkbp:uses |
Variable-length instructions
|
| gptkbp:bfsParent |
gptkb:VAXbus
|
| gptkbp:bfsLayer |
7
|