Table 32. Extended Feature Flag Descriptions - AMD -K6-2/450 - MHz Processor Application Note

Embedded AMD-K6™ Processors BIOS Design Guide

Table 32. Extended Feature Flag Descriptions

1
Bit Feature
Floating-Point Unit
0
Virtual Mode Extensions
1
Debugging Extensions
2
Page Size Extensions (4-Mbyte Pages)
3
Time Stamp Counter (with RDTSC and CR4 disable
4
bit)
K86 Family of Processors' Model-Specific Registers
5
(with RDMSR and WRMSR)
PAE (Page Address Extensions)
6
Machine Check Exception
7
CMPXCHG8B Instruction
8
APIC
9
Reserved on all AMD processors
10
SYSCALL and SYSRET Instructions
11
Memory Type Range Registers
12
13 Global Paging Extension
Machine Check Architecture
14
Conditional Move Instruction
15
16 PAT (Page Attribute Table)
PSE-36 (Page Size Extensions)
17
Reserved on all AMD processors
18–21
22 AMD Multimedia Instruction Extensions
MMX Instructions
23
FXSAVE/FXRSTOR
24
25 Streaming SIMD Extensions (SSE)
Reserved on all AMD processors
26–29
AMD 3DNow! Instruction Extensions
30
31 3DNow! Instructions
Notes:
1. Bit definitions: 0 = No Support, 1 = Support
76
Preliminary Information
AMD-K6E
Processor
(Model 7)
1
1
1
1
1
1
0
1
1
0
0
1
0
1
0
0
0
0
0
0
1
0
0
0
0
1
23913A/0—November 2000
AMD-K6-2
and
AMD-K6-2E AMD-K6-III
Processors Processor
(Model 8) (Model 9)
1 1
1 1
1 1
1 1
1 1
1 1
0 0
1 1
1 1
0 0
0 0
1 1
0 0
1 1
0 0
0 0
0 0
0 0
0 0
0 0
1 1
0 0
0 0
0 0
0 0
1 1
AMD-K6-2E+
and
AMD-K6-IIIE+
Processors
(Model D)
1
1
1
1
1
1
0
1
1
0
0
1
0
1
0
0
0
0
0
0
1
0
0
0
1
1
Appendix A