參數(shù)資料
型號: 23913A
英文描述: Embedded AMD-K6 Processors BIOS Design Guide Application Note? 1.33MB (PDF)
中文描述: 嵌入式的AMD - K6處理器的BIOS設(shè)計(jì)指南應(yīng)用筆記? 1.33MB(PDF格式)
文件頁數(shù): 72/98頁
文件大?。?/td> 1365K
代理商: 23913A
60
Embedded AMD Processor Recognition
Embedded AMD-K6 Processors BIOS Design Guide
23913A/0—November 2000
Preliminary Information
for a value of at least 8000_0001h in the EAX register returned
by function 8000_0000h.
Within AMD’s family of processors, different members can
execute a different number of functions. Table 28 summarizes
the CPUID functions currently implemented on AMD
processors.
76
Table 28. CPUID Functions
1
in
AMD-K6 Processors
2
I
dentifying the Processor’s Vendor
Software must execute the standard function EAX=0. The
CPUID instruction returns a 12-character string that identifies
the processor’s vendor. The instruction also returns the largest
standard function input value defined for the CPUID
instruction on the processor.
For AMD processors, function 0 returns a vendor string of
“AuthenticAMD”. This string informs the software to follow
Notes:
1.
2. Future versions of these processors may implement additional functions.
3. TLB = translation lookaside buffer
4. Low-power versions only
“Appendix A” on page 71 contains detailed descriptions of the functions.
Standard
Function
Extended
Function
Description
Vendor String and Largest
Standard Function Value
Processor Signature and Standard
Feature Bits
8000_0000h Largest Extended Function Value
8000_0001hExtended Processor Signature and
Extended Feature Bits
8000_0002h Processor Name
8000_0003h Processor Name
8000_0004h Processor Name
8000_0005hL1 TLB
3
Cache Information
8000_0006hL2 TLB
3
Cache Information
8000_0007h AMD PowerNow! Technology
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
X
X
X
X
1
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
4
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