Revision History
ix
21329L/0—December 1999
AMD-K6
Processor BIOS Design
Revision History
Date
Rev
G
G
G
Description
Dec 1997
Dec 1997
Dec 1997
Added boot string information to the CPUID description on page 4.
Added processor speeds, bus speeds, and boot string information to Table 4 on page 10.
Added 3DNow! to “New AMD-K6 Processor Instructions” on page 41.
Deleted AMD-K5 processor information. Added URL to BIOS information for the AMD-K5
processor on page 1.
Added “Processor Models and Steppings” on page 2.
Added “AMD-K6-2 Processor Model 8/[F:8]” on page 4 to the BIOS Consideration Checklist.
Added Table 2, “State of the AMD-K6-2 Processor Model 8/[F:8] After RESET,” on page 7.
Added Table 6, “Summary of MSR Differences Within the AMD-K6 Family,” on page 14.
Moved paragraphs describing four MSRs into “Standard MSRs” on page 15.
Added “AMD-K6 Processor Models 6, 7 and AMD-K6-2 Processor Model 8/[7:0]” on page 16 and
“AMD-K6-2 Processor Model 8/[F:8]” on page 20 to the Model-Specific Register (MSRs) section.
Added “Pipelining Support” and “Read-Only Memory” on page 42.
Released under a nondisclosure agreement.
Added AMD-K6-
III
processor information to “Processor Models and Steppings” on page 2 and to
“BIOS Consideration Checklist” on page 5.
Added Table 3, “State of the AMD-K6-III Processor Model 9 After RESET,” on page 8.
Added to “CPUID Identification Algorithms” on page 9 a recommendation to change “L2” to
“External” within the Summary/Configuration screen.
Added new boot strings to Table 4, “Summary of AMD-K6 Processor Models and BIOS Boot
String,” on page 10.
Added extended function 8000_0006h to Figure 1, “CPUID Instruction Flow Chart,” on page 12.
Added L2 unified cache to “Built-In Self-Test (BIST)” on page 13.
Added AMD-K6-
III
processor information to Table 6, “Summary of MSR Differences Within the
AMD-K6 Family,” on page 14.
Added “AMD-K6-III Processor Model 9” on page 33.
Added note 2 to Table 1, “State of the AMD-K6 Processor Models 6, 7, and 8/[7:0] After RESET,”
on page 7.
Revised Figure 1, “CPUID Instruction Flow Chart,” on page 12.
Added AMD-K6-2/533 to Table 4, “Summary of AMD-K6 Processor Models and BIOS Boot
String,” on page 10.
May 1998
H
Nov 1998
Nov 1998
Nov 1998
Nov 1998
Nov 1998
H1
H1
H1
H1
H1
Nov 1998
H1
Nov 1998
July 1998
H1
I
Feb 1999
J
Feb 1999
J
Feb 1999
J
Feb 1999
J
Feb 1999
Feb 1999
J
J
Feb 1999
J
Feb 1999
J
Sept 1999
K
Sept 1999
K
Dec 1999
L