AMD-K6 Datasheet, PDF (59/346 Pages) Advanced Micro Devices – AMD-K6 Processor

20695H/0—March 1998
Preliminary Information
AMD-K6^® Processor Data Sheet
Task State Segment
31
Figure 34 shows the format of the Task State Segment (TSS).
I/O Permission Bitmap (IOPB)
(up to 8 Kbytes)
0
TSS Limit
from TR
Interrupt Redirection Bitmap (IRB)
(eight 32-bit locations)
Operating System
Data Structure
Base Address of IOPB
0000h
0000h
0000h
0000h
0000h
0000h
0000h
0000h
0000h
0000h
0000h
Figure 34. Task State Segment (TSS)
EDI
ESI
EBP
ESP
EBX
EDX
ECX
EAX
EFLAGS
EIP
CR3
ESP2
ESP1
ESP0
0000h
LDT Selector
GS
FS
DS
SS
CS
ES
SS2
SS1
SS0
Link (Prior TSS Selector)
T _64h
0
Chapter 3
Software Environment
41