Amd Geode LX [email protected] Manual de usuario Pagina 632

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632 AMD Geode™ LX Processors Data Book
Instruction Set
33234H
8.2.2.4 CPUID Instruction with EAX = 80000005h
Extended function 80000005h (EAX = 80000005h) of the CPUID instruction returns information on the internal L1 cache
and TLB structures. They are used for reporting purposes only. See Table 8-23 for returned contents.
8.2.2.5 CPUID Instruction with EAX = 80000006h
Extended function 80000006h (EAX = 80000006h) of the CPUID instruction returns information on the internal L2 cache
and TLB structures. See Table 8-24 on page 632 for returned contents.
.
Table 8-23. CPUID Instruction with EAX = 80000005h
Register
Returned
Contents Description Comment
EAX 00000000h 4 MB L1 TLB Information Indicates no 4 MB L1 TLB.
EBX FF10FF10h 4 KB L1 TLB Information Decodes to eight fully associative code TLB and eight
fully associative data TLB entries.
ECX 40100120h L1 Data Cache Information Indicates 16 KB four-way associative with 32-byte lines
for data cache. These encodings follow the AMD report-
ing method.
EDX 40100120h L1 Code Cache Information Indicates 16 KB four-way associative with 32-byte lines
for code cache. These encodings follow the AMD report-
ing method.
Table 8-24. CPUID Instruction with EAX = 80000006h
Register
Returned
Contents Description Comment
EAX 0000F004h L2 TLB Information Two-way associative 64 entry code and data combined
TLB.
EBX 00002040h L2 TLB Information
ECX 00804120h L2 Code Cache Information Indicates no L2 cache.
EDX 00000000h L2 Data Cache Information
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