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Appendix A
Embedded AMD-K6™ Processors BIOS Design Guide
23913A/0—November 2000
Preliminary Information
Table 32. Extended Feature Flag Descriptions
Bit
Feature
1
Notes:
1. Bit definitions: 0 = No Support, 1 = Support
AMD-K6E
Processor
(Model 7)
AMD-K6-2
and
AMD-K6-2E
Processors
(Model 8)
AMD-K6-
III
Processor
(Model 9)
AMD-K6-2E+
and
AMD-K6-
III
E+
Processors
(Model D)
0
Floating-Point Unit
1
1
1
1
1
Virtual Mode Extensions
1
1
1
1
2
Debugging Extensions
1
1
1
1
3
Page Size Extensions (4-Mbyte Pages)
1
1
1
1
4
Time Stamp Counter (with RDTSC and CR4 disable
bit)
1
1
1
1
5
K86 Family of Processors’ Model-Specific Registers
(with RDMSR and WRMSR)
1
1
1
1
6
PAE (Page Address Extensions)
0
0
0
0
7
Machine Check Exception
1
1
1
1
8
CMPXCHG8B Instruction
1
1
1
1
9
APIC
0
0
0
0
10
Reserved on all AMD processors
0
0
0
0
11
SYSCALL and SYSRET Instructions
1
1
1
1
12
Memory Type Range Registers
0
0
0
0
13
Global Paging Extension
1
1
1
1
14
Machine Check Architecture
0
0
0
0
15
Conditional Move Instruction
0
0
0
0
16
PAT (Page Attribute Table)
0
0
0
0
17
PSE-36 (Page Size Extensions)
0
0
0
0
18–21
Reserved on all AMD processors
0
0
0
0
22
AMD Multimedia Instruction Extensions
0
0
0
0
23
MMX Instructions
1
1
1
1
24
FXSAVE/FXRSTOR
0
0
0
0
25
Streaming SIMD Extensions (SSE)
0
0
0
0
26–29
Reserved on all AMD processors
0
0
0
0
30
AMD 3DNow! Instruction Extensions
0
0
0
1
31
3DNow! Instructions
1
1
1
1