AMD-K6-2ESLASH233AMZ datasheet(71/332 Pages) AMD

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Chapter 3

Software Environment

22529B/0—January 2000

AMD-K6™-2E Processor Data Sheet

Preliminary Information

Figure 47. Application Segment Descriptor

Base Address 15–0

Segment Limit 15–0

7654

321

31 30 29 28 27 26 25 24 23 22

Segment

Limit

DPL

Type

G D

Base Address 31–24

Base Address 23–16

Reserved

Symbol

Description

Bits

Granularity

32-Bit/16-Bit

AVL

Available to Software

Present/Valid Bit

DPL

Descriptor Privilege Level

14-13

Descriptor Type

Type

See Table 9

11-8

Table 9. Application Segment Types

Type Data/Code Description

Data

Read-Only

Read-Only—Accessed

Read/Write

Read/Write—Accessed

Read-Only—Expand-down

Read-Only—Expand-down, Accessed

Read/Write—Expand-down

Read/Write—Expand-down, Accessed

Code

Execute-Only

Execute-Only—Accessed

Execute/Read

Execute/Read—Accessed

Execute-Only—Conforming

Execute-Only—Conforming, Accessed

Execute/Read-Only—Conforming

Execute/Read-Only—Conforming, Accessed

AMD-K6-2E/233AMZ Datasheet(PDF) 71 Page - Advanced Micro Devices

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