參數(shù)資料
型號(hào): intel386 DX
廠商: Intel Corp.
英文描述: 32-Bit CHMOS Microprocessor With Integrated Memory Management(32位CHMOS 微處理器帶集成存儲(chǔ)管理)
中文描述: 32位CHMOS微處理器集成內(nèi)存管理(32位CHMOS微處理器帶集成存儲(chǔ)管理)
文件頁數(shù): 44/139頁
文件大?。?/td> 1587K
代理商: INTEL386 DX
Intel386
TM
DX MICROPROCESSOR
When operating in Protected Mode, the segment
base, limit, and other attributes within the segment
cache registers are defined as shown in Figure 4-12.
In Protected Mode, each of these fields are defined
according to the contents of the segment descriptor
indexed by the selector value loaded into the seg-
ment register.
231630–61
Key:
Y
e
fixed yes
N
e
fixed no
d
e
per segment descriptor
p
e
per segment descriptor; descriptor must indicate ‘‘present’’ to avoid exception 11
(exception 12 in case of SS)
r
e
per segment descriptor, but descriptor must indicate ‘‘readable’’ to avoid exception 13
(special case for SS)
w
e
per segment descriptor, but descriptor must indicate ‘‘writable’’ to avoid exception 13
(special case for SS)
e
does not apply to that segment cache register
Figure 4-12. Segment Descriptor Caches for Protected Mode (Loaded per Descriptor)
44
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