Statements (34)
| Predicate | Object |
|---|---|
| gptkbp:instanceOf |
CPU operating mode
|
| gptkbp:accessibleBy |
hardware directly
|
| gptkbp:addressSpace |
1 MB
|
| gptkbp:descriptorTables |
not used
|
| https://www.w3.org/2000/01/rdf-schema#label |
Real Mode
|
| gptkbp:interruptsSupported |
yes
|
| gptkbp:interruptVectorTableLocation |
0x0000:0x0000
|
| gptkbp:introducedIn |
gptkb:Intel_8086
1978 |
| gptkbp:maxSegmentSize |
64 KB
|
| gptkbp:memoryAccess |
segmented addressing
|
| gptkbp:memoryProtection |
none
|
| gptkbp:modeSwitching |
cannot return from Protected Mode without reset (on early CPUs)
can switch to Protected Mode |
| gptkbp:multitaskingSupport |
no
|
| gptkbp:pagingSupport |
no
|
| gptkbp:privilegeLevels |
none
|
| gptkbp:protectedModeSupport |
no
|
| gptkbp:segmentRegisters |
gptkb:ES
gptkb:CS gptkb:DS gptkb:FS SS GS |
| gptkbp:successor |
gptkb:Protected_Mode
|
| gptkbp:supportsVirtualization |
no
|
| gptkbp:usedBy |
gptkb:x86_architecture
gptkb:DOS BIOS early Windows versions |
| gptkbp:usedFor |
boot process
legacy software compatibility |
| gptkbp:bfsParent |
gptkb:Protected_Mode
|
| gptkbp:bfsLayer |
7
|